Senior Lead Python Jobs

Who we are About Stripe Stripe, LLC. is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. What you’ll do Responsibilities Design, build, and maintain high-scale, distributed systems to work with the company. Work within a team to build the core networking solutions, which include load balancing, mTLS networking, fleet health & observability used by product teams to build and operate microservices supporting the company’s business. Build a great customer experience for internal company teams using Infra and play a key role in enabling the company’s Infra to power all of the company’s products globally and at scale. Scope, design, implement, and deploy robust solutions, making appropriate tradeoffs between reliability, throughput, latency, resiliency, engineering, velocity, and cost. Innovate, design, and implement software solutions that contribute towards improvement and resiliency, reliability, efficiency, and management at scale. Contribute to team strategy, roadmap, tooling, process, and culture. Set clear goals and provide regular feedback on team member performance. Who you are Minimum requirements Must have a Bachelor's Degree or foreign equivalent degree in Computer Science, or a related field, plus five (5) years of post-bachelor's progressive work experience in software engineering. In the alternative, the employer is willing to accept a Master's Degree or foreign equivalent in Computer Science, or a related field, plus three (3) years of experience in Software Engineering. Must a

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 Join Instacart's mission to transform grocery shopping through frontier AI. As a Senior Software Engineer on AI Labs & Foundations, you will design, build, and operate the high-scale production systems that power our most ambitious AI experiences—from Cart Assistant, our conversational shopping agent, to voice AI interactions and beyond. This is a high-impact opportunity to work at the intersection of robust software engineering and cutting-edge production AI/ML, directly shaping products used by millions of customers every day. We are hiring a Senior Software Engineer who will participate in the design and delivery of production AI systems, identify high-leverage technical opportunities, and contribute hands-on to AI-native products across Instacart's platform. We value bottom-up ideas, high engineering quality, and close partnership with Product, Dat

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role We're looking for a Senior Software Engineer to join the Elasticsearch - Analytical Engine team. This globally-distributed, completely remote team of senior engineers is responsible for building new analytics capabilities in Elasticsearch’s latest aggregation framework based on a completely new compute engine, and accessed via our new piped query language called ES|QL . This is a senior software engineering role that covers the design and implementation of new features, enhancements to existing features, and resolving bugs. Our company is distributed by intention. We hire the best engineers we can find wherever they are, whoever they are. We collaborate across continents every day over email, GitHub, Zoom, and Slack. At our best, we write fast, scalable, and intuitive software. We believe that the best way to do that is to empower individual engineers, code review every change, decide big things by consensus, and strive for incremental improvements. What You Will Be Doing You'll be a full-time Elasticsearch contributor, building data-intensive new features and fixing intriguing bugs, all while making the code easier to understand. You are able to research what available data structures and algorithms work best to implement a new functionality or enhancement. Sometimes you’ll need to implement a data structure or algorithm in the

Senior Security Engineer, Vulnerability Management Here at Datadog, we think about vulnerability management a little differently. We embrace open source software, recognize our role in the software supply chain, and see attackers weaponizing vulnerabilities faster than ever. We are looking for a Senior Security Engineer who can combine vulnerability-management judgment with hands-on engineering to help us scale and improve our vulnerability lifecycle across Datadog’s multi-cloud products and services. In this role, you will turn ambiguous security problems into clear solutions, and work with engineering teams to address root causes and develop technical controls that reduce vulnerabilities earlier in the SDLC. You’ll use AI and automation to help scale the overall vulnerability lifecycle across Datadog. You will use data and sound technical judgment to prioritize risk, and partner with security, product, platform, and compliance teams to bring scalable solutions into practice. At Datadog, we place value in our office culture - the relationships and collaboration it builds, and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do Work across the vulnerability lifecycle from detection and impact assessment through risk-based prioritization, remediation, and verification. Use AI and automation to build tools, services, and workflows that make security ideas concrete, validate them quickly, and create alignment for scalable implementation. Reduce engineering toil through a “PRs, not tickets” approach, using automation to enrich findings, identify ownership, recommend or deliver fixes, and track outcomes. Analyze recurring vulnerabilities and remediation failures to identify root causes and opportunities to prevent issues earlier in the SDLC. Partner with SDLC Security, Product Security, platform teams, and engineering teams to balance technical constraints, busin

At Qualia, we've built the leading B2B real estate technology that transforms the home buying and selling experience into a simple, secure, and enjoyable process. Our SMB and Enterprise products bring together users from across the real estate ecosystem---homebuyers and sellers, lenders, title and escrow agents, and real estate agents---onto a single shared digital closing platform, providing greater clarity and transparency to real estate transactions. Today, through our business customers across the country, millions of consumers use Qualia to close on homes every year. WHAT YOU'LL WORK ON Settlement Agencies depend on Qualia Clear to help improve the speed and quality of a real estate closing. They also rely on Qualia Clear to do chunks of work for them, end-to-end. Qualia Clear's curative agents do this work in production today, on real transactions. As Product Manager for Curative, you will own this agent portfolio end to end — what the agents do next, how precisely they're specified, and whether customers actually use them. If you've built AI agents and want to put them to work at national scale, this is a good fit. RESPONSIBILITIES Own the curative agent portfolio end to end: roadmap, scoping, release, adoption, and iteration Scope agents with deep, precise requirements for AI systems working real title workflows across all 50 states Build rapid prototypes to pressure-test ideas before committing engineering time Partner with Engineering and Design to break ambitious goals into small, shippable milestones that deliver value fast Write tight, plain-language PRDs that frame the problem, success criteria, and context Analyze deployment and utilization data rigorously; use it to sharpen priorities every release Collect and analyze metrics on everything you ship — how well it works and how much it's used Monitor COGs per agent run and drive them down without sacrificing accuracy Report to executives on ideas, roadmap, product adoption, and agent performance Work w

Who we are About Stripe Stripe is a technology company that builds economic infrastructure for the internet. Businesses of all sizes—from new startups to public companies like Amazon and Salesforce—use our software to accept online payments and run technically sophisticated financial operations in more than 100 countries. By helping businesses accept payments from anywhere in the world and accelerating the economic shift from offline to online, we aim to increase the GDP of the internet. About the team Stripe’s Leadership Recruiting Team (LRT) is a high-performing group of strategic and creative problem solvers. We are passionate about finding and hiring the very best leaders and experts from around the globe to help drive the next arc of Stripe’s growth. What you’ll do In this role, you will be directly responsible for partnering with senior stakeholders to identify, attract, assess, and hire individuals for leadership roles across the company. Responsibilities Strategically partner with executives to hire top talent for Stripe’s highest priority engineering leadership roles Define, design, and implement recruiting processes and search engagements for a variety of senior leadership roles. This includes understanding and mapping the talent landscape, internal calibration and referrals, and matching those data points with the external talent supply Manage end-to-end leadership-level searches from inception of candidate contact to onboarding, including research, outreach strategies, candidate experience, negotiations, partnering with HR for successful onboarding, and communicating with stakeholders along the way Collaborate with cross-functional partners, such as People Partners, Compensation, and Business Leads, to align hiring goals with business needs Develop competency-based interviews that surface a candidate’s full range of capabilities, explore their aspirations, and gain insight into how their experience will apply to a leadership role at Stripe Fo

About Mach Industries Founded in 2023, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition. Our vision is to redefine the future of warfare through cutting-edge manufacturing, innovation at speed, and unwavering focus on national security. We are dedicated to solving the next generation of warfare with lethal systems that deter kinetic conflict and protect global security. The Role As a Senior Electrical Engineer, you will be at the forefront of creating next-generation military technologies. Your expertise will directly contribute to the electrical design, development, and testing of sophisticated defense systems. This role is perfect for a driven individual who thrives in a fast-paced, high-stakes environment and is eager to apply their electrical engineering skills to high-impact projects. Key Responsibilities Design electronic circuit boards consisting of MCUs, low and high-speed communication busses such as USB, Ethernet, MIPI, digital and analog interfaces, power distribution, EMI, and ESD circuits. Design PCB, Altium Designer preferred, for flight avionics, guidance systems, communication systems, and power distribution. Rapidly construct prototypes using standard and application specific lab tools. Test and evaluate prototypes with standard and application specific test equipment to verify design integrity and performance. Develop and maintain detailed design documentation, CAD drawings, and product specifications for board and system designs. Design PCB boards and systems in accordance with Mach and industry quality standards. Collaborate with the quality team ensuring designs meet quality, re

Shape the Future with Dun & Bradstreet At Dun & Bradstreet, we believe data has the power to create a better tomorrow. As a global leader in business decisioning data and analytics, we help companies worldwide grow, manage risk, and innovate. Since 1841, businesses have trusted us to turn uncertainty into opportunity. We’re a diverse, global team that values creativity, collaboration, and bold ideas. Are you ready to make an impact and help shape what’s next? Join us! Explore opportunities at dnb.com/careers. The Senior Brand Marketing Manager leads the development, activation, and governance of brand initiatives that strengthen awareness, consistency, and perception across channels. This role owns the brand narrative and strategy, drive campaigns that build awareness and affinity, and ensure consistency in how we show up in the market. This role helps shape the company’s brand architecture and brand naming approach—ensuring the master brand, sub-brands, products, solutions, programs, campaigns, and partner offerings are expressed and branded in a clear, cohesive, and customer- relevant way. The role works cross-functionally with creative, communications, portfolio marketing and additional marketing teams from media, to events, to digital, etc. to translate business objectives into compelling brand experiences. Essential Key Responsibilities Develop and refine the brand strategy, including positioning, messaging, voice, and narrative. Ensure the brand narrative is clear, differentiated, and aligned with the company visual and business goals. Help define, document, and govern brand architecture, including how the master brand, sub-brands, product, solutions, capabilities, program, campaign, and partner offerings related to one another – and earn branding. Support brand naming strategy and governance for new products, solutions, data offerings, agents, capabilities etc. – ensuring names align to the br

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Senior Professional Services Engineer, you'll own delivery workstreams on federal engagements in FedRAMP-authorized cloud environments, Department of Defense (DoD) Impact Level 4 and 5 enclaves, and fully disconnected networks. You'll install and configure GitLab in classified and air-gapped environments, migrate agencies from legacy tooling, train government technical staff, and advise customers on how GitLab fits their security and compliance posture. You'll work directly with program managers, engagement managers, Federal account teams, and agency stakeholders. You'll also collaborate with GitLab

Scale's Data Analytics team is centralized, embedding data analysts across delivery, operations, finance, and engineering to turn ambiguous problems into clear, actionable insights. As a Senior Data Analyst for Public Sector, you'll build analytics solutions from the ground up - partnering closely with cross-functional teams and leadership to solve complex problems, design dashboards, build tables, and perform ad-hoc analyses that shape how Scale runs and measures its Public Sector business. We're looking for someone who's relentlessly curious, comfortable owning ambiguity, and skilled at turning cross-functional relationships into sustainable, scalable analytics solutions. Active Secret U.S. security clearance required You will: Own data quality for your domain - document models, troubleshoot discrepancies, and establish centralized metric definitions Collaborate with cross-functional teams to identify, define, and track key metrics to be used in monitoring, planning, and one-off decision-making Develop repeatable, scalable analytical solutions, such as dashboards, data models, or standard processes Partner with Ops to identify and track efficiency initiatives, measuring their impact on cost, quality, and delivery outcomes over time Partner with Finance to analyze cost drivers across programs and help inform pricing strategy Be willing to deepdive when needed and dig into the messy details to get to the root of a problem Initiate and drive complex projects to completion with minimal guidance Ideally you'd have: 6+ years of relevant work experience Advanced SQL skills and experience building with data modeling tools (e.g. DBT) Experience building dashboards and reports with BI tools (e.g. Tableau, Metabase) Strong business acumen - comfortable partnering directly with cross-functional stakeholders Excellent communication skills - able to translate technical analysis into clear, actionable narratives Comfort with ambiguity in a fast-moving environment and able

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft. We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! Senior Account Executive, Federal Civilian (US) Why this role? As a Senior Account Executive at Cohere you will have ownership of the full sales cycle - from identifying leads to closing deals, with Federal Civilian Departments and Agencies in the United States. In this role you will be focussed on business development activity within the non-defense Cabinet Level Agencies in the United States, including Department of Veterans Affairs, State Department, and Treasury among others. We’re looking for an approachable and compelling communicator who loves working with public sector customers to uncover their needs and feels comfortable developing tailored value propositions around how Cohere’s platform can help them drive better citizen outcomes. You’ll lay the foundation for Cohere’s growth by owning your territory and collaborating with teammates across Customer Success, Sales Development, Marketing, and Sales Engineering. You’ll be the voice of the field and help our Product and Engineering teams prioritize the Cohere roadmap with customer-centric care. In this highly self-directed role, you will thrive in a quickly evolving envir

About Comfrt Comfrt is one of the fastest-growing direct-to-consumer brands, dedicated to blending mental wellness, inclusivity, and elevated comfort into every piece we create. Our mission goes beyond clothing — we strive to build a community where everyone feels supported and seen. Role Overview The Senior Director of Lifecycle Marketing will own the strategy and evolution of Comfrt's customer lifecycle, with a focus on increasing customer lifetime value, repeat purchase behavior, engagement, loyalty, and advocacy. This role goes well beyond traditional email and SMS management. We're looking for a strategic, highly analytical lifecycle leader who can connect customer behavior to business performance and build an integrated strategy across onsite capture and list growth, email, SMS, push, app, direct mail, loyalty, customer reviews, and other owned channels. This leader will oversee the Retention & Loyalty team and partner closely with Growth, Ecommerce, Data, Finance, Merchandising, Creative, CX, and Product to ensure our significant investment in customer acquisition translates into long-term customer value. Key Responsibilities Lifecycle Strategy, Analytics & Customer Economics Own Comfrt's end-to-end lifecycle strategy across prospects, first-time buyers, repeat customers, high-value customers, loyalty members, app users, and lapsed customers. Develop strategies to increase LTV, repeat purchase rate, purchase frequency, and first-to-second and subsequent purchase conversion. Partner with Data to understand customer progression, develop meaningful cohorts, identify where customers fall out of the lifecycle, and uncover the behaviors and interventions that drive greater customer value. Establish lifecycle KPIs and measurement frameworks that distinguish overall business growth from the incremental impact of lifecycle initiatives. Build an always-on testing culture and translate customer data into actionable insights, recommendations, and investment decis

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 Technical Program Management team The Technical Program Management team at Affirm operates at the intersection of strategy, product, and engineering execution. We are versatile operators and trusted strategic partners who drive complex initiatives, design our planning engines, and architect operational frameworks that power the technology behind Affirm's business. Guided by our commitment to putting the customer first and pushing the envelope, we elevate how teams collaborate, resolve critical tradeoffs, and turn high-level vision into scalable reality. About the role We're looking for an experienced, motivated Senior Technical Program Manager to oversee high visibility planning programs for our teams and help streamline our processes for building and delivering great customer and merchant products. As our products scale in complexity to meet our accelerating business and expanding product lines, our business and technology process management practices need to scale with it. In this role, you will work closely with engineering, product, analytics, and other cross-functional teams to align efforts with goals, identify opportunities for improvement, and drive change initiatives. What you’ll do Drive complex, multi-disciplinary, and highly visible transformation & operational programs in service of our team’s mission to deliver honest financial products that improve lives Coordinate and collaborate with cross-functional stakeholders across the company to drive alignment on strategy, priorities, and key decisions. Implement lean processes and drive towards better ways of working to realize value from planning, ask questions that clarify priorities and push the team to be effective, and build a culture of continuous iteration and improvement Establish and run data-driven oper

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 Technical Program Management team The Technical Program Management team at Affirm operates at the intersection of strategy, product, and engineering execution. We are versatile operators and trusted strategic partners who drive complex initiatives, design our planning engines, and architect operational frameworks that power the technology behind Affirm's business. Guided by our commitment to putting the customer first and pushing the envelope, we elevate how teams collaborate, resolve critical tradeoffs, and turn high-level vision into scalable reality. About the role We're looking for an experienced, motivated Senior Technical Program Manager to oversee high visibility planning programs for our teams and help streamline our processes for building and delivering great customer and merchant products. As our products scale in complexity to meet our accelerating business and expanding product lines, our business and technology process management practices need to scale with it. In this role, you will work closely with engineering, product, analytics, and other cross-functional teams to align efforts with goals, identify opportunities for improvement, and drive change initiatives. What you’ll do Drive complex, multi-disciplinary, and highly visible transformation & operational programs in service of our team’s mission to deliver honest financial products that improve lives Coordinate and collaborate with cross-functional stakeholders across the company to drive alignment on strategy, priorities, and key decisions. Implement lean processes and drive towards better ways of working to realize value from planning, ask questions that clarify priorities and push the team to be effective, and build a culture of continuous iteration and improvement Establish and run data-driven oper

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Locations: Austin, TX or London, UK (Hybrid) About the Role R2 is Cloudflare's object storage platform, offering developers durable, reliable storage with zero egress fees that integrates seamlessly with Cloudflare's global network and Developer Platform. The R2 Gateway team owns the request-facing layer of R2 — the S3-compatible API gateway that every object put, get, list, and delete flows through. When a customer or application talks to R2,