Senior Application Developer Jobs

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . Reddit is continuing to grow our teams with the best talent. This role is completely remote friendly within the United States. If you happen to live close to one of our physical office locations (San Francisco, Los Angeles, New York City & Chicago) our doors are open for you to come into the office as often as you'd like. Reddit is poised to innovate and grow like never before, and Safety is a critical accelerant of that growth. The Safety org is Reddit’s central Trust & Safety organization, protecting users from bad experiences by stopping harmful content, behaviors, and abuse across the platform. We are looking for a Senior Data Scientist to lead ads fraud detection and scaled enforcement within Safety. You will partner closely with Ads Product, Engineering, Machine Learning, Operations, Policy, Legal, and fellow Safety data scientists to identify emerging ads fraud, define rigorous measurement and evaluation standards, and turn investigations into durable signals, models, rules, and enforcement pipelines. This is a high-impact role with exceptional opportunity for ownership and growth: as an early leader in a greenfield space, you will help define the strategy, shape cross-functional roadmaps, build foundational capabilities, and expand your scope as Reddit’s ads integrity program matures. Responsibilities Lead the measurement and detection strategy for ads fraud by defining fraud taxonomies, labels, sampling plans, metrics, and evaluation frameworks that make performance measurable and defensible. Analyze la

We're transforming the grocery industry At Instacart, we invite the world to share love through food because we believe everyone should have access to the food they love and more time to enjoy it together. Where others see a simple need for grocery delivery, we see exciting complexity and endless opportunity to serve the varied needs of our community. We work to deliver an essential service that customers rely on to get their groceries and household goods, while also offering safe and flexible earnings opportunities to Instacart Personal Shoppers. Instacart has become a lifeline for millions of people, and we’re building the team to help push our shopping cart forward. If you’re ready to do the best work of your life, come join our table. Instacart is a Flex First team There’s no one-size fits all approach to how we do our best work. Our employees have the flexibility to choose where they do their best work—whether it’s from home, an office, or your favorite coffee shop—while staying connected and building community through regular in-person events. Learn more about our flexible approach to where we work. Overview As a machine learning engineer in the Economics team, you will build state-of-the-art systems that blend rigorous economic thought with sophisticated machine learning algorithms to tackle some of the company's most challenging problems. Working in a horizontal team, you will have the opportunity to collaborate closely with partners across multiple functions to operate on a highly diverse set of problems, contributing both economic and engineering expertise in a fast-paced environment filled with exciting opportunities for technically-minded economists. The Economics team at Instacart works on a range of interesting and challenging problems across our platform, from aligning the incentives in our multi-sided marketplace to analyzing the role of prices and product placement in our customers' decision-making. Some of the core areas of focus for our team inclu

We're transforming the grocery industry At Instacart, we invite the world to share love through food because we believe everyone should have access to the food they love and more time to enjoy it together. Where others see a simple need for grocery delivery, we see exciting complexity and endless opportunity to serve the varied needs of our community. We work to deliver an essential service that customers rely on to get their groceries and household goods, while also offering safe and flexible earnings opportunities to Instacart Personal Shoppers. Instacart has become a lifeline for millions of people, and we’re building the team to help push our shopping cart forward. If you’re ready to do the best work of your life, come join our table. Instacart is a Flex First team There’s no one-size fits all approach to how we do our best work. Our employees have the flexibility to choose where they do their best work—whether it’s from home, an office, or your favorite coffee shop—while staying connected and building community through regular in-person events. Learn more about our flexible approach to where we work. Overview As a machine learning engineer in the Economics team, you will build state-of-the-art systems that blend rigorous economic thought with sophisticated machine learning algorithms to tackle some of the company's most challenging problems. Working in a horizontal team, you will have the opportunity to collaborate closely with partners across multiple functions to operate on a highly diverse set of problems, contributing both economic and engineering expertise in a fast-paced environment filled with exciting opportunities for technically-minded economists. The Economics team at Instacart works on a range of interesting and challenging problems across our platform, from aligning the incentives in our multi-sided marketplace to analyzing the role of prices and product placement in our customers' decision-making. Some of the core areas of focus for our team inclu

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading. About the team + role We are building an elite team, applying frontier technologies to the world’s biggest financial problems. We’re looking for bold thinkers. Sharp problem-solvers. Builders who are wired to make an impact. Robinhood isn’t a place for complacency, it’s where ambitious people do the best work of their careers. We’re a high-performing, fast-moving team with ethics at the center of everything we do. Expectations are high, and so are the rewards. The Cloud Security team is focused on protecting Robinhood’s AWS cloud and providing engineers with foundational security capabilities. It is a major contributor to the company’s least privilege objective to manage network traffic and reduce the level of access that employees have or could obtain through escalation. A Senior Security Engineer on the Cloud Security team is a well-rounded technologist and a deep subject matter expert in cloud security and building security controls on Amazon Web Services (AWS). The ideal candidate for this role will embody and exemplify our Safety First value. This role is based in our Bellevue, WA, Menlo Park, CA, and New York, NY offices, with in-person attendance expected at least 3 days per week. At Robinhood, we believe in the power of in-person work to accelerate progress, spark innovation, and strengthen community. Our office experience is intentional, energizing, and designed to fully support high-performing teams. What you’ll do As a Senior Security Engineer you will be part of a team which owns the security posture for cloud infrastructure on which all Robinhood products are built You will build and operate solutions that protect fou

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE Collections is where cash flow becomes real — where the numbers on a report turn into dollars actually in the bank. As our Senior Collections Analyst, you'll own a global portfolio of commercial accounts end-to-end: driving outreach, resolving disputes, and weighing in on credit hold decisions. You'll also be the resident expert on how our ERP supports AR and Collections work, so you'll shape both the deals closing today and how the team operates going forward. You'll work daily with Sales, Billing, Credit, Revenue, Order Management, Treasury, and Legal, balancing commercial urgency against risk. WHAT YOU'LL DO Own a large, global portfolio of commercial accounts, running proactive outreach that secures payment commitments and drives down past-due balances Advise the credit hold team on payment history and account risk, including input on "hard hold" accounts, balancing commercial urgency against exposure Resolve billing disputes, credit memos, short payments, and complex multi-party disputes, partnering with Sales, Billing, Credit, and Customer Experience, and looping in Legal when formal escalation is needed Manage withholding tax reconciliation and navigate country-specific payment cycles and regulatory requirements across an international portfolio Flag high-risk and chronically past-due accounts for bad debt reserve review, and keep account-to-owner contact mapping current so escalations reach the right perso

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . We're looking for a Senior Client Account Manager to join our Global Strategic Accounts team. This team is a specialized group within Global Large Customer Sales that oversees Reddit’s most significant global advertising partners end-to end, by leading joint business planning, global strategy, and cross-regional execution. This person will closely collaborate with their Client Partner on campaign execution and optimizations to help agencies and advertisers achieve their marketing objectives on the fast-growing Reddit platform. This role is required to be based in person in San Francisco or New York. Responsibilities: Collaborate closely with Client Partners to meet and exceed clients’ marketing goals Lead and execute campaign launches from start to finish and deliver insightful optimizations to agency and client partners Run end-to-end global account operations: revenue delivery, complex media strategy, multi-market optimizations, troubleshooting, and structured upsell on a global book Turn campaign performance and tests across markets into global playbooks and measurement frameworks, feeding back into Product, Marketing Sciences, and Client Partners Proactively manage and deepen relationships with existing advertising partners, both with agencies and directly with Global clients, to drive year-on-year Reddit revenue growth Educate brands and media agencies, effectively communicate value proposition and best practices Consult clients on their awareness and direct response objectives, and partner closely with Client

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. About the Team: The Account Management team at Affirm is focused on building and growing long-term partnerships with our merchant partners, helping them maximize the value of their relationship with Affirm while driving mutual business growth. This team also serves as a strategic bridge across Analytics, Product, Marketing, Credit, and Technical teams, advocating for merchants and helping shape solutions that drive successful outcomes for both our partners and Affirm. About the Role: Affirm is committed to building lasting partnerships with merchants for long term growth and ongoing revenue generation. As a Key Account Manager, you will join a growing team driving value and growth with large strategic merchants. This is a high-profile, customer-facing role requiring outstanding results-oriented, relationship and program management skills. This role oversees a portfolio of Affirm’s strategic accounts with the goal of driving ambitious results across the business. Success in this role entails delivering strong results, collaborating across different teams and levels with key stakeholders, strong analytical skills and excellent executive presence including written and verbal communications. What You'll Do: Act as SEM and team lead across omni-retail for best practices on managing complex accounts, driving outcomes and building relationships You will oversee a large portfolio of key strategic accounts and will be responsible for developing and driving strategic initiatives including complex contract negotiation, pricing and expansion opportunities to drive revenue and General Merchandise Volume (GMV). You will lead and execute sophisticated account plans that include financing optimizations, executive relationship engagement, and marketing strategies, often against ambitious timelin

At Vanta, our mission is to help businesses earn and prove trust. We believe that security should be monitored and verified continuously, and we empower companies to practice better security and prove it with ease. Vanta has a kind and talented team, and while some have prior security experience, many have been successful at Vanta without it. As a Senior Software Engineer on the Vanta for Government team, you'll set the technical foundation for Vanta's expansion into the public sector: designing the systems, patterns, and architecture that will power compliance programs from the ground up for government vendors and agencies. The Vanta for Government team is building and evolving Vanta's AI-powered platform for government vendors, federal agencies, and State, Local, and Education (SLED) organizations. Our mission is to make government compliance not easy, but easier: helping organizations automate the heavy lifting across complex frameworks like FedRAMP, CMMC, and NIST, strengthen their security posture, and support mission-critical work with greater confidence. You’ll work directly alongside early design partners to shape new capabilities in real time. We’re growing at a blistering pace, which presents career-defining opportunities for engineers to accelerate their growth and to contribute to a rapidly-scaling company. Visit our Vanta Engineering Blog to learn more about what our team is working on! What you’ll do as a Senior Software Engineer at Vanta: Lead complex projects with multiple stakeholders and engineers to deliver significant impact to our government product line, designing systems that adapt Vanta's core compliance platform to meet the demands of federal agencies, government vendors, and SLED organizations Lead the design and build of net-new product capabilities — including core compliance workflow features that don't yet exist in Vanta's product today — working alongside early design partners to validate and iterate as requirements evolve Partner with

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Senior Principal, Technical Program Manager for Regulatory Compliance in Engineering. About the job As an established subject matter expert in regulatory compliance for Software as a Service companies, you will build bridges between Legal, Compliance, Product, and Engineering teams and translate regulatory requirements into technical requirements and implementation plans. You will define the operating models for R&D to maintain existing requirements and drive creation of roadmaps and frameworks for evaluation and adoption of new compliance requirements. As the primary technology partner for teams outside product & engineering, you will solve critical compliance problems, implement robust management systems, and navigate seamlessly between big-picture planning and hands-on delivery to ensure key initiatives move forward in a dynamic environment. By blending regulatory expertise with execution excellence, you

About Flexport: At Flexport, we believe global trade can move the human race forward. That’s why it’s our mission to make global commerce so easy there will be more of it. We’re shaping the future of a $10T industry with solutions powered by innovative technology and exceptional people. Today, companies of all sizes—from emerging brands to Fortune 500s—use Flexport technology to move more than $19B of merchandise across 112 countries a year. The recent global supply chain crisis has put Flexport center stage as we continue to play a pivotal role in how goods move around the world. We are proud to have the support of the best investors in the game who believe in our mission, solutions and people. Ready to tackle global challenges that impact business, society, and the environment? Come join us. What you'll do There is no MSSP and no tier-1 queue here. Detection & Response engineers own their detections end to end: you write them, you tune them, and your team is paged when they fire. The security team is spread across the globe with a follow-the-sun pager rotation so nobody is paged at 3am local. The adversaries are real. The business is growing fast and the threat surface is growing with it. Defining the necessary telemetry is part of the job. Detection engineering Build and tune detections across endpoint, identity, SaaS, and cloud , treating them as software: version-controlled, peer-reviewed, and shipped through the same CI/CD practices the rest of engineering uses. Track detection quality as measured quantities : coverage against MITRE ATT&CK, precision, time-to-detect. We don’t build-and-forget here. Response & automation Own incident response: triage, contain, remediate, and write the retrospective that turns the incident into a systemic fix. Build automation that removes toil from investigations, and partner closely with the US-based team so context carries across time zones instead of getting lost at handoff. Telemetry & partnershi

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Senior Strategic Account Executive. About the job This position is needed to sell into high value prospects and customers. This person will play a key role in further growing the business across EMEA with a particular focus on Southern Europe. The candidate will be responsible for managing fast growing customers in the region. Focused mainly on Product cross and up-sell and GP growth, as well as sourcing net new opportunities within a set of accounts. Responsibilities In this role, you’ll: Servicing the fastest growing customers in the region. Growing our revenue and gross profit share of wallet within your key account list. Opening doors to the purchase of Twilio’s products and services - including voice, messaging, email, contact centre, account security software. Maintaining the highest levels of customer satisfaction. Create pricing proposals, negotiating terms and managing the contract process. Selling so

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! About the Role Snorkel AI is hiring a Forward Deployed Engineer focused on Synthetic Data Generation to partner with leading AI labs and enterprises on their most critical AI initiatives. In this role, you will lead the technical execution of complex customer engagements where synthetic data is used to improve model training, evaluation, and performance. You will translate ambiguous model and data challenges into effective data strategies, build scalable generation and evaluation pipelines, and use experimentation to continuously improve data quality and downstream model outcomes. You will work across the full delivery lifecycle—from technical discovery and solution design through implementation, evaluation, and production delivery. You will also identify patterns across engagements and turn successful approaches into reusable capabilities, technical standards, and product improvements. Main Responsibilities Synthetic Data Generation & Evaluation Design and build scalable synthetic data generation, transformation, filtering, and evaluation pipelines for complex AI use cases Translate model objectives, failure modes, and data gaps into synthetic data strategies, experiments, and technical specifications Develop LLM- and ML-assisted workflows to generate high-quality training and evaluation datasets across targeted behaviors, domains, and edge cases Build automated evaluators, quality checks, and measurement frameworks to assess correctness, relevance

About Iovance Biotherapeutics, Inc. Iovance Biotherapeutics , Inc. is the global leader in innovating, developing, and delivering tumor infiltrating lymphocyte (TIL) cell therapies for patients with solid tumors. Amtagvi® (lifileucel) is the first FDA-approved, one-time treatment for previously treated advanced melanoma, now approved in three global markets and available at more than 95 authorized treatment centers. The Iovance TIL platform spans registrational trials and next-generation programs in additional solid tumors, including gene-edited and IL-12 tethered TIL therapies, next-generation IL-2, and precision immuno-oncology approaches. As the first and only company to take TIL therapy from concept to a broadly accessible commercial treatment, Iovance operates as an end-to-end cell therapy company, anchored by fully owned, centralized U.S.-based manufacturing that is scaled to serve thousands of cancer patients worldwide each year. For more information, please visit www.iovance.com . Amtagvi® and its accompanying design marks, Proleukin ® , Iovance ® , and IovanceCares™ are trademarks and registered trademarks of Iovance Biotherapeutics, Inc. or its subsidiaries. All other trademarks and registered trademarks are the property of their respective owners. Information on Iovance’s broad, industry-leading patent portfolio is available on the Intellectual Property page on www.iovance.com . Overview The Senior Project Manager will play a key role in the development, management, and execution of Iovance’s manufacturing sites’ project portfolios in Philadelphia, PA, reporting to the Senior Director, Operational Excellence. This experienced individual will shape project management processes and standards and provide guidance to less experienced project managers. The role will be responsible for planning, leading, and managing the successful execution of complex cross-function

ABOUT THE ROLE The Senior Product Manager, Payments Strategy & Growth is a senior payments subject matter expert for Accela’s Payments portfolio, combining deep payments expertise with market analysis, go-to-market execution, partner collaboration, portfolio support, and AI-driven innovation. This role works within the established Payments portfolio strategy to identify and validate growth opportunities, develop recommendations and business cases, support sales and marketing, and drive adoption of Accela’s payment solutions. The role partners closely with the delivery product team and Engineering to translate approved strategy, customer needs, and priorities into executable roadmap recommendations. The ideal candidate understands modern payment ecosystems, payment providers, compliance requirements, fintech trends, and the language needed to help Sales position payment solutions with confidence. SPECIFIC RESPONSIBILITIES Contribute payments expertise, market analysis, and recommendations that support the established vision, positioning, growth strategy, and business objectives for Accela’s Payments portfolio. Identify and assess market opportunities, emerging trends, competitive threats, regulatory changes, partner opportunities, and potential growth investments within the established Payments portfolio strategy. Conduct market research, TAM assessments, buyer segmentation, customer validation, win/loss analysis, and competitive intelligence. Develop business cases, investment recommendations, adoption plans, pricing inputs, revenue models, and executive-ready portfolio recommendations. Serve as Accela’s payments subject matter expert across payment providers, merchant services, payment facilitation, gateways, digital wallets, fraud prevention, settlement, reconciliation, PCI, and emerging fintech capabilities. Lead execution of approved go-to-market plans, including messaging, positioning, launch planning, sales enablement, customer-facing narratives, ROI mater

At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate your impact. We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset — who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. At Snowflake, your role isn't just to execute a function, but to help redefine the future of how work gets done. We are hiring a Senior Solution Engineer dedicated to one of Snowflake's most strategically important healthcare customers. This is a named-account role: your entire focus will be a single global healthcare organisation, whether a payer, provider, life sciences company, or health technology platform. You will own the full technical relationship, drive use case expansion across the organisation's clinical, operational, and research functions, and act as the go-to trusted advisor to CTO, CDO, and engineering leadership within the account. This is a senior-level, high visibility role with global scope and direct exposure to Snowflake's leadership. AS A SENIOR SOLUTION ENGINEER AT SNOWFLAKE, YOU WILL : Own the end-to-end technical relationship for a single strategic Global Account in healthcare, from discovery and technical qualification through proof of concept, technical close, and ongoing expansion Build and deliver compelling demonstrations, solution architectures, and executive presentations that connect Snowflake's platform capabilities to the account's clinical, operational, and research data priorities Design and lead proof of concept engagements covering healthcare use cases including clinical data interoperability, population health analytics, claims and payer data pr