Jobs in United States

Mission Systems Engineers in United States

2,258 active opportunities · Updated October 2026

Explore current mission systems engineers jobs across United States. Filter by work mode, employment type, experience, department, date posted and distance.

O
📍 San Francisco, California, United States· Full-time
✓ High-confidence listingCompany trend -84.1%
Quick readStrong listing-quality and freshness signals

About the role We are hiring a Manager, Revenue Accounting focused on enterprise revenue to provide hands-on accounting support within Controllership. You will help the team meet the demands of a growing enterprise business through journal entries, reconciliations, close support, and audit support. In this role, you will Prepare and book journal entries and perform reconciliations for enterprise revenue accounting activity. Support the monthly accounting close. Respond to audit requests and prepare supporting documentation. Work with large datasets to support enterprise revenue accounting execution and investigate accounting activity. You may thrive in this role if you Bring hands-on accounting execution skills across journal entries, reconciliations, close activities, and audit support. Are comfortable working with large volumes of data. Have SQL experience or otherwise demonstrate strong data-analysis capability. Lack of SQL experience is not an automatic disqualifier. Enjoy contributing to a team supporting a rapidly growing business. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. For additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement . Background checks for applicants will be admini

SQLArtificial IntelligenceAIAccounting
P
📍 New York, New York, United States· Full-time· Remote
✓ Quality checkedCompany trend -73.5%

We believe that the way people interact with their finances will drastically improve in the next few years. We’re dedicated to empowering this transformation by building the tools and experiences that thousands of developers use to create their own products. Plaid powers the tools millions of people rely on to live a healthier financial life. We work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid’s network covers 12,000 financial institutions across the US, Canada, UK and Europe. Founded in 2013, the company is headquartered in San Francisco with offices in New York, Seattle, Washington D.C., Raleigh, London, and Amsterdam. About Plaid & Our Mission At Plaid, we are building the digital financial ecosystem of the future, giving millions of people the power and access to manage their financial lives seamlessly. Behind every great product is a team of people who need reliable, friction-free technology to do their best work. Dynamics & Your Impact As part of the TechOps team, you will design, build, and support a first-class computing environment that keeps our business secure and our employees productive. In this role, you will be the backbone of our in-office technical experience. By ensuring our conference rooms, networking systems, and daily workplace tools run smoothly without interruption, you enable every employee to focus on expanding financial access for everyone. What You’ll Do (Responsibilities & Impact) Enable Seamless Collaboration: Ensure audio-visual (AV) systems in conference rooms and shared office spaces function flawlessly so team members can connect seamlessly across global offices. Resolve In-Office Hardware & Tech Needs: Directly troubleshoot and resolve issues with printers, monitors, keyboards, and other office desk peripherals, minimizing downtime for your collea

P
📍 Seattle, Washington, United States· Full-time
✓ Quality checkedCompany trend -73.5%

We believe that the way people interact with their finances will drastically improve in the next few years. We’re dedicated to empowering this transformation by building the tools and experiences that thousands of developers use to create their own products. Plaid powers the tools millions of people rely on to live a healthier financial life. We work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid’s network covers 12,000 financial institutions across the US, Canada, UK and Europe. Founded in 2013, the company is headquartered in San Francisco with offices in New York, Seattle, Washington D.C., Raleigh, London, and Amsterdam. About Plaid & Our Mission At Plaid, we are building the digital financial ecosystem of the future, giving millions of people the power and access to manage their financial lives seamlessly. Behind every great product is a team of people who need reliable, friction-free technology to do their best work. Dynamics & Your Impact As part of the TechOps team, you will design, build, and support a first-class computing environment that keeps our business secure and our employees productive. In this role, you will be the backbone of our in-office technical experience. By ensuring our conference rooms, networking systems, and daily workplace tools run smoothly without interruption, you enable every employee to focus on expanding financial access for everyone. What You’ll Do (Responsibilities & Impact) Enable Seamless Collaboration: Ensure audio-visual (AV) systems in conference rooms and shared office spaces function flawlessly so team members can connect seamlessly across global offices. Resolve In-Office Hardware & Tech Needs: Directly troubleshoot and resolve issues with printers, monitors, keyboards, and other office desk peripherals, minimizing downtime for your collea

B
📍 San Francisco, California, United States· Full-time
✓ High-confidence listing

$147K – $187K/yr

Quick readStrong listing-quality and freshness signals

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Design at Brex Design at Brex creates the experiences that make complex systems feel effortless through thoughtful, scalable design. Whether crafting interfaces, shaping product strategy, or harnessing AI to empower our users, we obsess over quality and clarity. This is a team where creativity meets high craft, and where designers grow by building for ambitious customers. What you’ll do Brex is looking for a Senior Brand Designer to join the Design team, a cross-disciplinary group of creatives including product designers, brand designers, content design, operations, and marketing strategists. Our team’s mission is to build a category-defining brand and meaningfully move key business metrics by delivering world-class creative. Your role will be to contribute to direction and execute a variety of creative projects across marketing collateral, digital experiences, out-of-home, communications, environmental, and more. This is a collaborat

GitRestAIGo
B
📍 New York, New York, United States· Full-time
✓ High-confidence listing

$147K – $187K/yr

Quick readStrong listing-quality and freshness signals

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Design at Brex Design at Brex creates the experiences that make complex systems feel effortless through thoughtful, scalable design. Whether crafting interfaces, shaping product strategy, or harnessing AI to empower our users, we obsess over quality and clarity. This is a team where creativity meets high craft, and where designers grow by building for ambitious customers. What you’ll do Brex is looking for a Senior Brand Designer to join the Design team, a cross-disciplinary group of creatives including product designers, brand designers, content design, operations, and marketing strategists. Our team’s mission is to build a category-defining brand and meaningfully move key business metrics by delivering world-class creative. Your role will be to contribute to direction and execute a variety of creative projects across marketing collateral, digital experiences, out-of-home, communications, environmental, and more. This is a collaborat

GitRestAIGo
B
📍 New York, New York, United States· Full-time
✓ High-confidence listing

$187K – $234K/yr

Quick readStrong listing-quality and freshness signals

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Design at Brex Design at Brex creates the experiences that make complex systems feel effortless through thoughtful, scalable design. Whether crafting interfaces, shaping product strategy, or harnessing AI to empower our users, we obsess over quality and clarity. This is a team where creativity meets high craft, and where designers grow by building for ambitious customers. What you’ll do Brex is looking for a Staff brand designer to join the Design team, a cross-disciplinary group of creatives including product designers, brand designers, content design, operations, and marketing strategists. Our team’s mission is to build a category-defining brand and meaningfully move key business metrics by delivering world-class creative. Your role will be to contribute to direction and execute a variety of creative projects across marketing collateral, digital experiences, out-of-home, communications, environmental, and more. This is a collaborati

JavaScriptJavaGitRest
B
📍 New York, New York, United States· Full-time
✓ High-confidence listing

$187K – $234K/yr

Quick readStrong listing-quality and freshness signals

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Design at Brex Design at Brex creates the experiences that make complex systems feel effortless through thoughtful, scalable design. Whether crafting interfaces, shaping product strategy, or harnessing AI to empower our users, we obsess over quality and clarity. This is a team where creativity meets high craft, and where designers grow by building for ambitious customers. What you’ll do Brex is looking for a Staff brand designer to join the Design team, a cross-disciplinary group of creatives including product designers, brand designers, content design, operations, and marketing strategists. Our team’s mission is to build a category-defining brand and meaningfully move key business metrics by delivering world-class creative. Your role will be to drive the evolution of Brex's brand identity system, pushing our visual language forward while maintaining cohesion across all touch points. You'll be instrumental in defining how our brand sh

AIGoMarketingFigma
B
📍 San Francisco, California, United States· Full-time
✓ High-confidence listing

$187K – $234K/yr

Quick readStrong listing-quality and freshness signals

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Design at Brex Design at Brex creates the experiences that make complex systems feel effortless through thoughtful, scalable design. Whether crafting interfaces, shaping product strategy, or harnessing AI to empower our users, we obsess over quality and clarity. This is a team where creativity meets high craft, and where designers grow by building for ambitious customers. What you’ll do Brex is looking for a Staff brand designer to join the Design team, a cross-disciplinary group of creatives including product designers, brand designers, content design, operations, and marketing strategists. Our team’s mission is to build a category-defining brand and meaningfully move key business metrics by delivering world-class creative. Your role will be to contribute to direction and execute a variety of creative projects across marketing collateral, digital experiences, out-of-home, communications, environmental, and more. This is a collaborati

JavaScriptJavaGitRest
B
📍 San Francisco, California, United States· Full-time
✓ High-confidence listing

$187K – $234K/yr

Quick readStrong listing-quality and freshness signals

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Design at Brex Design at Brex creates the experiences that make complex systems feel effortless through thoughtful, scalable design. Whether crafting interfaces, shaping product strategy, or harnessing AI to empower our users, we obsess over quality and clarity. This is a team where creativity meets high craft, and where designers grow by building for ambitious customers. What you’ll do Brex is looking for a Staff brand designer to join the Design team, a cross-disciplinary group of creatives including product designers, brand designers, content design, operations, and marketing strategists. Our team’s mission is to build a category-defining brand and meaningfully move key business metrics by delivering world-class creative. Your role will be to drive the evolution of Brex's brand identity system, pushing our visual language forward while maintaining cohesion across all touch points. You'll be instrumental in defining how our brand sh

AIGoMarketingFigma
B
📍 CA, United States· Full-time
✓ High-confidence listing

From $89K/yr

Quick readStrong listing-quality and freshness signals

WHAT IS BOX? Box (NYSE:BOX) is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, and transform business workflows with enterprise AI. We help companies thrive in the new AI-first era of business. Founded in 2005, Box simplifies work for leading global organizations, including JLL, Morgan Stanley, and Nationwide. Box is headquartered in Redwood City, CA, with offices across the United States, Europe, and Asia. By joining Box, you will have the unique opportunity to continue driving our platform forward. Content powers how we work. It’s the billions of files and information flowing across teams, departments, and key business processes every single day: contracts, invoices, employee records, financials, product specs, marketing assets, and more. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations. With the combination of AI and enterprise content, the opportunity has never been greater to transform how the world works together and at Box you will be on the front lines of this massive shift. WHY BOX NEEDS YOU The Marketing Technology Specialist plays a critical role in keeping Box's marketing engine running with precision and efficiency. You will sit at the intersection of marketing, sales, and analytics — ensuring that campaigns are set up correctly, data flows cleanly, and performance insights reach the right teams at the right time. This is a role for someone who thrives on building reliable systems, solving operational puzzles, and continuously improving the technology and processes that power marketing at scale. You will join a collaborative team that values accuracy, curiosity, and a bias toward action. Whether you're troubleshooting a workflow, building a dashboard, or documenting a new best practice, your work will have a direct impact

SQLAISalesforceMarketing
B
📍 New York, NY, United States· Full-time
✓ High-confidence listing

From $89K/yr

Quick readStrong listing-quality and freshness signals

WHAT IS BOX? Box (NYSE:BOX) is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, and transform business workflows with enterprise AI. We help companies thrive in the new AI-first era of business. Founded in 2005, Box simplifies work for leading global organizations, including JLL, Morgan Stanley, and Nationwide. Box is headquartered in Redwood City, CA, with offices across the United States, Europe, and Asia. By joining Box, you will have the unique opportunity to continue driving our platform forward. Content powers how we work. It’s the billions of files and information flowing across teams, departments, and key business processes every single day: contracts, invoices, employee records, financials, product specs, marketing assets, and more. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations. With the combination of AI and enterprise content, the opportunity has never been greater to transform how the world works together and at Box you will be on the front lines of this massive shift. WHY BOX NEEDS YOU The Marketing Technology Specialist plays a critical role in keeping Box's marketing engine running with precision and efficiency. You will sit at the intersection of marketing, sales, and analytics — ensuring that campaigns are set up correctly, data flows cleanly, and performance insights reach the right teams at the right time. This is a role for someone who thrives on building reliable systems, solving operational puzzles, and continuously improving the technology and processes that power marketing at scale. You will join a collaborative team that values accuracy, curiosity, and a bias toward action. Whether you're troubleshooting a workflow, building a dashboard, or documenting a new best practice, your work will have a direct impact

SQLAISalesforceMarketing
C
📍 San Diego, CA, United States· Full-time
✓ Quality checkedCompany trend -100%

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. 🚀 ClickUp is building the everything app for work so teams can plan, collaborate, and execute in one place. We're hiring a Manager, Sales Development to lead a frontline team focused on converting inbound interest into qualified pipeline and developing future Account Executive talent. This role is critical as the business needs a hands-on leader who can improve conversion across lead sources, raise execution quality, and hire and coach strong SDR talent as the go-to-market engine scales. This is a high-impact leadership role for someone who loves building both people and systems. You'll partner closely with Sales, Marketing, Enablement, and Revenue Operations to improve funnel performance, sharpen team operating rhythm, and develop a strong bench of future sellers. Mission Lead a high-performing sales development team that converts inbound demand into quality pipeline, strengthens the future AE bench, and raises the bar on coaching, execution, and operating discipline. What You'll Own Lead, coach, and develop Sales Development Representatives with clear accountability for pipeline creation, lead conversion, and day-to-day execution quality. Manage a team of 6–10 Sales Development Representatives. Improve conversion across inbound lead sources by tightening process, prioritization, and follow-up discipline. Build a strong operating cadence around metrics, pipeline reviews, coaching, performance management, and team accountability. Hire, onboard, and develop team members who can succeed in the role and grow into future Account Executive opportunities. Partner with Marketing, Revenue Operations, Enablement,

AWSRestMachine LearningAI
O
📍 San Francisco, California, United States· Full-time
✓ Quality checkedCompany trend -84.1%

By applying to this role, you will be considered for Research Scientist roles across all teams at OpenAI. About the Role As a Research Scientist here, you will develop innovative machine learning techniques and advance the research agenda of the team you work on, while also collaborating with peers across the organization. We are looking for people who want to discover simple, generalizable ideas that work well even at large scale, and form part of a broader research vision that unifies the entire company. We expect you to: Have a track record of coming up with new ideas or improving upon existing ideas in machine learning, demonstrated by accomplishments such as first author publications or projects Possess the ability to own and pursue a research agenda, including choosing impactful research problems and autonomously carrying out long-running projects Be excited about OpenAI’s approach to research Nice to have: Interested in and thoughtful about the impacts of AI technology Past experience in creating high-performance implementations of deep learning algorithms About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. For additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement . Background checks for

AWSRestMachine LearningAI
O
📍 San Francisco, California, United States· Full-time
✓ Quality checkedCompany trend -84.1%

About The Team The Data Understanding team is responsible for creating the high quality datasets and their quantized representation for OpenAI. This includes synthesizing data, building VQ representations, and processing, filtering, deduplication, quality control, and tokenization so it can be used effectively in big model training runs. About The Role We're looking to advance how OpenAI builds and understands pretraining data at scale. You'll treat data quality and curation as core research problems: developing new methods to select, combine, and transform data; creating datasets that improve model capabilities; and designing rigorous experiments to understand how data choices and interventions affect model learning and downstream behavior. You'll work closely with frontier models and web-scale data to build evidence for which approaches work and why, then translate successful research into scalable data processing pipelines We Expect You To Have a strong track record of new or improved ML ideas, through publications, projects, or applied research. Own and drive a research agenda, from choosing the right problems to carrying long-running work through to impact. Be excited by OpenAI’s empirical, collaborative approach to research. Nice To Have Thoughtfulness about AI’s impact, including privacy, provenance, and data quality. Experience building high-performance deep learning or large-scale data processing systems. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. We are an equal opportunity employer

AWSRestAIGo
O
📍 San Francisco, California, United States· Full-time
✓ Quality checkedCompany trend -84.1%

About The Team The Data Understanding team is responsible for creating the high quality datasets and their quantized representation for OpenAI. This includes synthesizing multimodal data, building VQ representations, and processing, filtering, deduplication, quality control, and tokenization so it can be used effectively in big model training runs. About The Role We’re looking to advance how OpenAI prepares, curates, synthesizes and understands multimodal data at scale. You’ll work on research and production problems like synthesizing multimodal content (images, audio, and video) and their supervisions, improving noisy data pipelines, building better quality filters, using models to automate data prep, and measuring whether changes in the dataset improve model performance. We Expect You To Have a strong track record of new or improved ML ideas, through publications, projects, or applied research. Own and drive a research agenda, from choosing the right multimodal data problems to carrying long-running work through to impact. Be excited by OpenAI’s empirical, collaborative approach to research. Nice To Have Experience with multimodal learning, audio, vision, video, synthetic data, or data-centric ML. Thoughtfulness about AI’s impact, including privacy, provenance, and data quality. Experience building high-performance deep learning or large-scale data processing systems. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. We are an equal opportunity employer, and we do not discriminate on the basis of

AWSRestAIRust
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