Server Engineer, Communication & Experimentation

Join Lyft as a Software Engineer specializing in server-side development. In this role, you will work on building scalable and efficient backend systems to enhance our ride-sharing platform. Collaborate with cross-functional teams to deliver innovative solutions that improve user experience and optimize operational efficiency. Your expertise in software development will help us meet the growing demands of our users.

About Strava Strava brings together a global community of over 180 million athletes across more than 185 countries. The platform goes beyond tracking workouts, it's a place where people support each other in building habits, achieving goals, and celebrating milestones. Strava welcomes anyone passionate about movement, whether cycling, running, swimming, or another sport. Learn more about Strava subscriptions. The company’s mission is to inspire people to live their most active lives, believing that movement connects and motivates individuals everywhere. Role Overview: Senior Server Engineer II, Subscriptions This position sits within the Subscriptions Team, which focuses on the systems behind Strava’s web and mobile payments and subscription experience. The team manages backend infrastructure, supports lifecycle experiments to grow the subscriber base, and collaborates closely with both finance and marketing. Their work enables other engineers to deliver a strong experience for subscribers. This is a hybrid role based in San Francisco. On-site presence is required three days per week. What You Will Do Design, build, and maintain backend services for Strava’s subscription and payments platform, working with technologies such as Ruby, Java, Scala, Python, Go, MySQL, Redis, Cassandra, Kafka, Kubernetes, and Docker. Develop and optimize APIs that connect with client applications, improving the subscription and payment journey for athletes. Work closely with product managers, designers, and client-side engineers to ensure technical solutions meet business needs. Help shape the technical direction of payments and subscriptions in partnership with the Engineering Manager. Mentor engineers on the team, encouraging a culture of learning and technical growth. Ensure reliability, scalability, and performance of services, while balancing technical debt with new feature development. What We’re Looking For More than 7 years of professional software development experience. Proficiency in several programming languages, including Ruby, Java, Scala, Python, and Go. Hands-on experience with databases such as MySQL, Redis, Cassandra, and with message brokers like Kafka. Solid understanding of container orchestration and deployment tools, including Kubernetes and Docker. Strong team collaboration skills and a track record of working effectively with others. Experience mentoring junior engineers and leading technical discussions.

Join Strava as a Senior Server Engineer in Our Identity Platform TeamAt Strava, we empower over 180 million athletes in more than 185 countries to track their activities and achieve their fitness goals. Our app is more than just a workout tracker; it’s a vibrant community where individuals can connect, share progress, and inspire one another. Whether you’re a runner, cyclist, or fitness enthusiast, Strava helps you find your crew and crush your personal bests. Embark on your journey with us today!Our mission is clear: to inspire people to lead their most active lives. We recognize the transformative power of movement in connecting individuals and propelling them forward.About This PositionWe are seeking a Senior Server Engineer to become a vital part of our Identity Engineering Team. This team is responsible for ensuring a secure and seamless experience for every athlete accessing Strava. Our identity systems go beyond mere authentication; they create a foundation of trust, security, and continuity across all our applications and platforms.This role follows a flexible hybrid model, requiring you to work on-site in our San Francisco office three days a week.Key Responsibilities:Develop core capabilities for the Identity platform, focusing on authentication, authorization, token lifecycle management, session continuity, and account security.Design and implement scalable and reliable server-side services to support account creation, login processes, account recovery, multi-factor authentication (MFA), and cross-application identity management.Enhance and innovate modern identity protocols by integrating standards such as OAuth 2.0, OpenID Connect (OIDC), WebAuthn, biometrics, and secure token exchange.Refine identity flows across our iOS, Android, and web platforms to ensure a frictionless user experience without compromising security.Collaborate with cross-functional teams, including Product, Security, Trust & Safety, Legal, and Mobile/Web Engineering, to create identity solutions that prioritize safety and privacy while supporting growth.Promote technical excellence by contributing architectural insights and shaping long-term Identity strategies.Mentor and support fellow engineers, fostering a collaborative and inclusive environment.Influence system design across teams, leveraging your expertise in identity to lead discussions on security, performance, and scalability.

About StravaStrava is the ultimate app for individuals who embrace an active lifestyle. With a vibrant community of over 180 million athletes spanning more than 185 countries, Strava transcends mere workout tracking—it's a platform where individuals collaborate to achieve their goals, develop new habits, and surpass personal milestones. Regardless of your chosen sport or tracking method, Strava is here to support you. Join us and start crushing your goals today by beginning your journey with Strava.Our mission is straightforward: to inspire individuals to lead their most active lives. We firmly believe in the transformative power of movement to connect and propel people forward.About This RoleAs a key member of the Foundation engineering team at Strava, you will play a crucial role in ensuring the reliability and security of the infrastructure that supports millions of athletes on their journeys. You will develop the tools, frameworks, and platforms that are essential to delivering valuable features to our users.In your role as a Senior Engineer on the Foundation team, you will have the opportunity to enhance Strava's core platform. You will empower teams to innovate swiftly and confidently by enhancing the developer experience, creating tools, collaborating with teams, and ensuring that features are delivered safely and efficiently.We embrace a flexible hybrid work model, which means you will spend over half of your time on-site at our San Francisco office—three days a week.

Anthropic is looking for a Staff Engineer to join the Datacenter Server Lifecycle team. This position centers on designing, building, and maintaining the server systems that form the backbone of Anthropic's data center operations. Role overview This engineer will play a key part in shaping the infrastructure that powers Anthropic's AI systems. The work involves both planning new server deployments and ensuring existing systems continue to run reliably. What you will do Design and implement server solutions for core data center functions Maintain and improve server systems to support ongoing operations Directly contribute to the infrastructure supporting Anthropic's AI technology Location This role is based in San Francisco, CA or New York City, NY.

Join Condor Software as a Full-Stack Platform EngineerAt Condor, we are revolutionizing the financial infrastructure that supports clinical development. With billions invested annually in discovering and developing new therapies, we strive to connect clinical operations and finance into a cohesive system. By integrating real-time financial intelligence, we empower R&D and finance leaders with the tools they need to make informed, high-stakes decisions.We are an AI-driven, pharma-native infrastructure provider, scaling industry standards in collaboration with top-tier partners. Our platform facilitates prediction, control, and execution in the most complex R&D environments worldwide.The Importance of Your RoleHaving established ourselves as a trusted partner for enterprise teams, we are now focused on the challenging task of scaling our platform to meet increasing demands. As a rapidly growing company, backed by prominent investors like Felicis and 645 Ventures, this is a unique opportunity to contribute to the foundational infrastructure that will redefine how therapies reach patients.Your ResponsibilitiesAs a Full-Stack Platform Engineer, you will be pivotal in building and scaling the core platform that supports the financial intelligence infrastructure relied upon by leading biopharma companies. This role encompasses critical engineering tasks at the intersection of backend systems, cloud infrastructure, and intelligent automation, with a strong emphasis on reliability and scalability.Your primary focus will be on backend architecture, where you'll design and implement services that drive complex financial and operational workflows. You'll be instrumental in shaping data flow, workflow orchestration, and enabling emerging AI-driven capabilities. This role goes beyond simple integration; you'll be crafting robust primitives that support other teams as our product and customer base expand.Working as a core member of a cross-functional product team, you will closely collaborate with product managers, designers, quality engineers, and data specialists to transition features from concept to production. While backend expertise is crucial, you will also engage across the stack to ensure the platform's capabilities are effectively leveraged.

Preferred Qualifications:• A minimum of 2 years of demonstrated experience with WebSphere Application Server and WebSphere Portal Server, alongside UI skills in Angular, Foundation Framework, jQuery, and HTML5.• At least 3 years of involvement in the software development life cycle.• A strong background in project life cycle activities related to both development and maintenance projects over a span of 3 years.• Proven experience in conducting design and architecture reviews for at least 3 years.• Exceptional stakeholder management abilities and relevant experience in client management.• A strong desire to work within a global delivery environment.• Ability to thrive in a team environment with strong client-facing skills.• Excellent communication and analytical skills.This role requires extended periods of sitting and computer work. Candidates must be able to communicate effectively via telephone, email, or in-person interactions. Occasional travel may be necessary based on job requirements.

About CondorAt Condor, we are committed to transforming the financial infrastructure of clinical operations and finance. Every year, substantial investments are made in discovering and developing new therapies, yet the tools and data supporting these efforts often remain fragmented and disconnected. Our mission is to bridge this gap.We are pioneering a real-time intelligence layer that seamlessly integrates clinical operations, vendor activities, and financial signals. As a result, R&D and finance leaders gain unprecedented control over their organizational operations, making informed decisions with confidence.Our platform is rooted in AI-driven technology tailored for the pharmaceutical industry, built to scale with the standards established in collaboration with leading partners in the field. We empower organizations to enhance their prediction, control, and execution capabilities in the most complex R&D environments globally.The Importance of Our WorkHaving established trust among enterprise teams to manage critical operations and finance, we are now faced with the challenge of scaling our solutions. This pivotal phase is where our efforts will shape the future of clinical development.Condor is experiencing rapid growth, supported by prominent institutional investors like Felicis and 645 Ventures, and is becoming integral to the operations of Top 200 biopharma companies. This role represents a unique opportunity to contribute to the foundational infrastructure that will redefine how therapies are brought to market.Role OverviewThe Vice President of Engineering at Condor is a vital leadership position responsible for establishing the engineering operating system behind a platform that our customers will increasingly view as essential. This role transcends mere maintenance; it is about innovating and enhancing how we deliver products with agility and precision.In this position, you will collaborate closely with the CEO and other cross-functional leaders to convert company priorities into actionable plans. You will take on hands-on responsibilities typical of early-stage leadership, from resolving production issues to making architectural decisions, while also building a scalable team and processes.This is an opportunity for an engineering leader seeking genuine ownership and influence, with the chance to create a resilient engineering function during a critical juncture in our growth.Key ResponsibilitiesDevelop and Direct the Engineering Operating System: Design and implement frameworks and processes that ensure reliability and efficiency.Team Leadership: Recruit, mentor, and develop a high-performing engineering team.Cross-Functional Collaboration: Work with product management and other departments to align engineering efforts with company goals.Strategic Technical Decisions: Make informed architectural choices that support product scalability and performance.

Join the vibrant team at Laurel Court, where we pride ourselves on delivering exceptional dining experiences. As a Server, you'll play a crucial role in creating memorable moments for our guests through outstanding service and attention to detail. Your responsibilities will include taking orders, serving food and beverages, and ensuring customer satisfaction in a fast-paced, upscale environment.

At Crusoe, our vision is to enhance the availability of energy and intelligence. We are at the forefront of developing solutions that empower individuals to innovate boldly with AI, all while ensuring that we uphold principles of scalability, speed, and sustainability.Join us in driving the AI revolution through sustainable technology at Crusoe. You will play a pivotal role in fostering innovation, making a significant impact, and collaborating with a team that is leading the way in responsible and transformative cloud infrastructure.About the RoleWe are on the lookout for a Senior Software Engineer to take on the role of founding engineer within our new Enterprise Software Engineering team in IT. You will work closely with the Director to develop internal tools, automation processes, and integrations that remove manual tasks and address critical operational challenges across the organization.This role transcends traditional enterprise IT positions. You will leverage AI-assisted development as your primary method, delivering production-quality software within days instead of months, while laying the groundwork for future team members. As you grow in this role, your primary contributions will focus on defining specifications, context, and reusable patterns to guide AI agents, while still engaging in hands-on coding for the most complex challenges.Your ResponsibilitiesDesigning and deploying internal tools, automation, and integrations that provide measurable benefits across Finance, Operations, HR, and other business functions.Utilizing AI-assisted development as your standard workflow, which includes drafting specifications, creating prompts, reviewing AI-generated code, and iterating quickly.Establishing foundational technical patterns such as coding standards, project conventions, reusable components, and context files that facilitate AI-driven development.Creating and managing integrations between enterprise systems through APIs, middleware, and data pipelines.Developing solutions across a versatile environment that combines cloud application platforms with internal GPU compute for AI workloads.Collaborating with business teams during rapid prototyping sessions, then refining prototypes into production-ready systems complete with testing, monitoring, and documentation.Setting up CI/CD pipelines, automated testing, and quality assurance measures for all solutions delivered.Taking ownership of solutions from end to end, covering everything from specification and implementation to deployment and production support.

Join Condor as a Quality Engineer in AccountingCondor Software is at the forefront of revolutionizing the financial infrastructure necessary for clinical operations. With hundreds of billions invested annually in the discovery and development of new therapies, our mission is to bridge the gap between clinical operations and finance, eliminating disconnection and enhancing decision-making through a unified platform.Our innovative solutions integrate clinical operations, vendor activities, and financial signals into a real-time intelligence layer, empowering R&D and finance leaders with comprehensive control over their organizational workflows.As a pharma-native, AI-driven infrastructure, Condor is uniquely positioned to scale industry standards defined in partnership with Big 4 firms. Our platform supports prediction, control, and execution in the most complex R&D environments worldwide.The Importance of Your RoleHaving established significant trust among enterprise clients, Condor is poised for growth. You will play a pivotal role in scaling a platform that is integral to the operations and financial health of top biopharma companies. This is a unique opportunity to contribute to foundational infrastructure that will directly impact how new therapies reach patients.Your ResponsibilitiesAs a Quality Engineer embedded within an agile product team, you will ensure the reliability and accuracy of our platform. This role requires a blend of accounting expertise, systems thinking, and technical skills to safeguard workflows where precision is critical. You will collaborate with software engineers, product managers, and domain experts to validate complex financial and clinical trial workflows under real-world conditions, significantly mitigating production risks and bolstering customer trust.Your hands-on role will focus on automating tests and solving analytical problems by designing and maintaining comprehensive automated test coverage for intricate financial calculations, accrual logic, and practical edge cases. Additionally, you will engage in targeted manual validations, contribute to the system's design for enhanced testability, and elevate quality standards across our platform.

Why Choose Numeric?Accounting is the backbone of every business. Unfortunately, many software solutions in this field were designed in the early 2000s — cumbersome, slow, and outdated in terms of AI capabilities. Today, accountants are grappling with an escalating, unresolved data challenge stemming from complexity, data overload, and fragmented systems — leaving them without adequate tools for resolution. These challenges are significant, complex, and increasingly urgent. But they are solvable.Welcome to Numeric — the future of accounting and finance. We are developing a platform that embodies the vision of real-time, comprehensive, and reliable data and insights for organizations to enhance their decision-making and execution.Our mission addresses the foundational issues necessary for automating data ingestion, transformation, matching, projection, and reporting, creating a seamless graph of financial data. By integrating data, automation, workflows, and AI-driven experiences, we empower accounting teams to maintain a continuous view of their company’s financial health and activities.With strong product-market fit and a growing customer base that includes leaders such as Anthropic, Brex, OpenAI, Plaid, and Wealthfront, we are backed by top-tier investors including IVP, Menlo Ventures, Founders Fund, and 8VC, alongside founders and executives from Ramp, Segment, and other pioneering firms.About the RoleAs a Product Software Engineer at Numeric, you will take charge of the entire product lifecycle, directly influencing our product strategy and direction. We seek innovative, dynamic builders with robust foundational skills and a commitment to enhancing user experiences and addressing key challenges.Potential ResponsibilitiesYou may work on our advanced data platform, which includes:Ingestion processes, metadata management, lineage tracking, and transformation for thorough analysis and insights while ensuring source traceability.Our reporting tools, enabling end-users to create flexible, highly-structured financial projections that can be saved as reports and seamlessly integrated into their workflows. These reports are both traceable and composable, allowing users to delve into transaction-level details and beyond.Monitoring systems, empowering clients to identify and rectify data issues at the source and prevent errors...

About CondorAt Condor, we are transforming the financial infrastructure of clinical development. While substantial investments are made annually to discover and develop new therapies, the processes behind these advancements often remain outdated and disconnected. Our mission is to bridge this gap, creating a cohesive system that integrates clinical operations, vendor activities, and financial data into a real-time intelligence layer. This empowers R&D and finance teams with the insights they need to make informed decisions.Our AI-driven, pharma-native infrastructure is designed to scale industry standards that we have helped shape alongside major partners. We facilitate prediction, control, and execution in some of the most complex R&D environments globally.As we continue to gain the trust of enterprise teams, we are now focused on the critical task of scaling our operations in a high-stakes environment.Condor is a rapidly growing company, backed by leading institutional investors such as Felicis and 645 Ventures, collaborating with top 200 biopharma companies. This is a unique opportunity to contribute to the infrastructure that influences how new therapies reach patients.The RoleWe are seeking a Senior Backend and Data Platform Engineer to play a key role in developing the foundational data infrastructure for Condor’s financial intelligence platform. This position is pivotal in turning complex clinical and financial data into actionable intelligence that enterprise biopharma teams can rely on.In this role, you will be responsible for designing and managing the core data foundations that underpin Condor’s financial engine and AI capabilities. Your work will involve modeling intricate, high-stakes data, constructing reliable data pipelines and services, and ensuring that product features and intelligence workflows function with precision, consistency, and scalability. The systems you develop will directly support critical finance and operational applications.This hands-on, senior engineering position provides you with significant ownership. You will engage with backend services, data pipelines, and APIs, bringing features from concept to production. You will define necessary data schemas, transformations, and architectural patterns that become essential as our platform evolves. Although your primary focus will be on backend and data engineering, you will also be encouraged to work across the stack to ensure seamless integration of data and intelligence.

Sofi is hiring a Software Engineer, Cloud to help build and support cloud-based solutions for a diverse and expanding customer base. This position plays a key part in shaping the technology that powers Sofi’s financial products. Role overview This role centers on designing, developing, and maintaining systems in the cloud. The Software Engineer will work closely with colleagues from different teams to introduce new technologies and refine existing systems. What you will do Create and maintain cloud-based applications and services. Work with cross-functional teams to implement new features and improve performance. Contribute to projects that enhance the overall user experience. Impact Work in this role supports Sofi’s mission to make financial tools accessible to everyone. Contributions directly affect how customers interact with and benefit from Sofi’s offerings.

Airbnb, founded in 2007, has transformed the travel experience by connecting over 5 million hosts with more than 2 billion guests worldwide. Our platform enables unique stays and authentic community experiences for travelers around the globe.Join Our Community:At Airbnb, the Developer Infrastructure team is dedicated to empowering engineers and AI Coding Agents to produce high-quality software efficiently. We focus on infrastructure that enhances engineering productivity throughout the software development lifecycle, including build, test, and deployment.Your Impact:As a member of the CI+Build team, you will play a crucial role in optimizing our developer infrastructure, which encompasses remote build systems, CI clusters, flaky test management, and merge queues. Your contributions will help maintain a seamless mainline and accelerate pull request cycle times.In this role, you will define and implement cutting-edge build systems at Airbnb’s scale, guiding the technical direction for build infrastructure across diverse platform teams. You will collaborate with internal teams that deliver systems utilized by product engineers in backend, web, and mobile environments. Success in this position requires a deep understanding of the architecture of our largest internal backend services as we navigate an increasingly complex build graph.A Day in Your Role:Designing enhancements to our existing Bazel installation and remote build/cache infrastructure to boost correctness, reproducibility, and speed.Establishing the technical roadmap for the reliability and performance of our software build systems.Improving inner-loop development velocity and CI run-times through diagnostic efforts.

Join SquareTrade, Inc. as a Software Engineer and be a key player in developing innovative software solutions that enhance customer experiences. You will collaborate with cross-functional teams to design, implement, and maintain robust applications. Your contributions will directly impact our mission to provide exceptional service and support to our users.

About GridwareGridware is an innovative technology firm based in San Francisco, committed to safeguarding and optimizing the electrical grid. We have pioneered a revolutionary grid management approach known as Active Grid Response (AGR), which emphasizes the monitoring of electrical, physical, and environmental factors that influence grid reliability and safety. Our cutting-edge AGR platform leverages high-precision sensors to identify potential issues early, facilitating proactive maintenance and fault prevention. This holistic strategy aids in enhancing safety, minimizing outages, and ensuring the grid operates with maximum efficiency. Gridware is supported by prominent climate-tech and Silicon Valley investors. For further details, please visit www.Gridware.io.Role OverviewWe are looking for a talented Staff Software Engineer to act as a pivotal technical force within our team, enhancing the overall software engineering capabilities through architectural innovation, mentorship, and fostering a culture of excellence. In this role, you will design and develop the essential software systems that drive Gridware's platform. This encompasses everything from backend services that oversee our distributed network of devices to the front-end interfaces that visualize grid health, fleet diagnostics, and real-time field events.Your responsibilities will span the entire technology stack, building and scaling systems that integrate hardware, firmware, and cloud infrastructure to enable dependable communication, fleet visibility, and expedited decision-making. This position offers significant ownership and impact, allowing you to influence how our technology supports and protects critical infrastructure at scale.

About BroccoliBroccoli is revolutionizing the $500 billion home services industry by developing an AI operating system designed to empower trades businesses such as HVAC and roofing. Our intelligent AI agents handle customer interactions, manage job bookings, and ensure every lead is effectively captured.With the backing of prominent venture capital firms and a successful $27 million Series A funding round, we are on an aggressive growth trajectory. Collaborating with top private equity-backed home service platforms, we anticipate expanding our team fivefold by 2026, presenting a unique opportunity to join us early and make a significant impact.Why Join Broccoli?As a Staff Engineer, you will be instrumental in establishing the technical backbone of Broccoli AI. Your responsibilities will include ownership of critical systems, influencing architectural decisions, and shaping our development and deployment processes on a large scale.Immediate Impact: Your contributions will directly enhance production systems, benefiting hundreds of customers.Category Creation: Play a pivotal role in defining a new category of AI-powered workforce within an expansive market.Speed & Ownership: Enjoy the advantages of a small team with rapid feedback loops and substantial decision-making authority.Founder Collaboration: Partner closely with experienced founders to drive product and technical vision.What You’ll DoDesign, develop, and scale backend systems and internal tools for our AI agent platform.Take ownership of essential APIs and integrations, including systems like ServiceTitan.Lead complex features from initial design through to production deployment.Enhance real-time voice capabilities, reliability, and intelligence of AI agents.Mentor fellow engineers and help implement best practices across the team.Balance speed and quality while scaling systems to accommodate live customer traffic.What We’re Looking For7+ years of experience in backend or full-stack engineering.Strong system design and architectural skills.Proven experience in deploying and maintaining production systems at scale.Ability to thrive in high-growth, ambiguous startup environments.A proactive approach with a strong execution mindset.

Join Carta's engineering team as a Staff Software Engineer, where you will play a crucial role in developing innovative solutions that enhance our platform. You will collaborate with cross-functional teams to design, implement, and maintain scalable systems, ensuring high performance and responsiveness to requests from the front-end.We're looking for a passionate engineer who thrives in a fast-paced environment and is excited about tackling complex challenges. If you are eager to contribute to cutting-edge technology and drive impactful projects, we want to hear from you!