Senior Quality Assurance Engineer

Skylight is an innovative technology startup headquartered in Los Angeles and San Francisco, dedicated to enhancing family connections through the creation of intuitive products and services. Our flagship offerings, including Skylight Frame and Skylight Calendar, have garnered immense popularity among users worldwide. Founded by seasoned entrepreneurs and fo…

About Rad AIAt Rad AI, our mission is to revolutionize healthcare through the power of artificial intelligence. Founded by a radiologist, our innovative AI solutions are transforming the field of radiology, significantly enhancing efficiency, alleviating burnout, and elevating patient care. With one of the largest proprietary datasets of radiology reports globally, our AI has identified hundreds of new cancer cases and decreased error rates in tens of millions of reports by nearly 50%.Having raised over $140M in funding, including a successful Series C round of $68M led by Transformation Capital, we are proud to have a valuation of $528M. Our esteemed investors include Khosla Ventures, World Innovation Lab, Gradient Ventures, and Cone Health Ventures, all committed to our goal of empowering healthcare professionals with state-of-the-art AI technologies.Our latest generative AI advancements are utilized daily by thousands of radiologists, supporting more than one-third of radiology groups and healthcare systems, as well as nearly 50% of all medical imaging in the U.S. at renowned partners such as Cone Health, Jefferson Einstein Health, Geisinger, Guthrie Healthcare System, and Henry Ford Health.Recognized as a leader in healthcare AI by CB Insights and AuntMinnie, and ranked as the 19th fastest-growing company in North America by Deloitte, we are dedicated to creating AI-driven solutions that make a tangible difference. Recently, Rad AI was also featured on CNBC’s Disruptor 50 list, which showcases the momentum and innovation propelling our mission forward.If you are eager to contribute to the future of healthcare, we would be thrilled to welcome you to our team!At Rad AI, we aim to enhance the lives of radiologists and improve patient care through intelligent design. Our AI-powered software streamlines workflow for radiology groups, enhances communication, and ensures the delivery of consistent, high-quality reports. We are a passionate team dedicated to the impact of our work on clinicians and patients. Join us!

About BuildkiteBuildkite’s CI platform is trusted by top engineering teams worldwide, enabling the deployment of software to over 1 billion daily users.Job OverviewWe are seeking a Senior Developer Relations Engineer to serve as the crucial link to our strategic vision. This role focuses on technical education, advocacy, and capturing valuable insights to enhance public trust, drive adoption, and ensure Buildkite’s messaging remains grounded in reality.Our approach to Developer Relations emphasizes an execution framework—education leading to proof, adoption, and advocacy—conducted with credibility and precision. You will enable developers to achieve value quickly, create experiences that foster loyalty to Buildkite, and provide honest feedback on challenges, gaps, and future product directions.We welcome candidates who possess deep technical expertise and sound judgment in public settings. You should be capable of teaching, demonstrating, debugging, and influencing the direction of our platform. What You’ll DoDrive a Developer-Centric Demand EngineLead campaign execution across key areas, from ideation to asset planning, launching, and iterative improvements.Develop initiatives that cater to both developers and decision-makers, ensuring credibility, clarity, and conversion.Establish a consistent rhythm that integrates our Labs (Brand Systems, Developer Voice, Go-To-Market Strategies).Be the Trusted Technical Advocate for DevelopersEngage in key forums with authentic technical insights and solutions.Educate on CI concepts and Buildkite workflows in formats that resonate with engineers.Build trust by engaging with real-world challenges.Accelerate Adoption through Education and Practical PathwaysDesign learning pathways that minimize time to first value, including onboarding guides and implementation walkthroughs.Collaborate with Product and Support teams to transform recurring confusion into improved documentation, defaults, and user experiences.Assist teams in safely migrating and modernizing their processes by clarifying CI best practices.Work alongside customers—large enterprises, startups, and open-source contributors—to share valuable technical experiences and narratives.Transform Proof into Public ArtifactsCollaborate with Content Engineering and Writing teams to convert technical realities into shareable assets.Create and publish developer-grade materials that address real questions and withstand scrutiny.Maintain high standards for content quality and relevance.

Join Sentry as an Engineering Manager for Issue WorkflowAre you passionate about enhancing the developer experience? At Sentry, we are dedicated to helping developers create high-quality software more efficiently. With over $217 million in funding and a user base exceeding 100,000 organizations, including industry giants like Disney, Microsoft, and Atlassian, we are at the forefront of performance and error monitoring solutions.Our hybrid work model fosters collaboration, with designated in-office days on Mondays, Tuesdays, and Thursdays. If you are eager to build innovative software monitoring tools that improve the digital landscape, we want you on our team.Your Impact in This RoleAs an Engineering Manager, you will guide a talented team responsible for our most utilized product features: issue details, issue search, and alerts. Your leadership will play a pivotal role in shaping the core experience that millions of developers rely on to debug and deploy confidently.Key ResponsibilitiesLead and nurture a team of engineers dedicated to Sentry's highest-trafficked product surfaces.Provide technical and product insights, actively participating in code reviews and architectural discussions.Set team objectives, eliminate obstacles, and mediate conflicts effectively.Engage with Sentry's customers to gain insights into their product usage and identify pain points.Establish clear goals, delegate tasks efficiently, and ensure timely project execution.Why You’ll Enjoy Working HereYou are a product-focused leader who prioritizes developer experience.You thrive in a collaborative environment where your contributions directly impact product quality.You are excited to mentor and grow your team, fostering a culture of continuous improvement.

Join Adyen as an Engineering Manager for our Developer Observability team! In this pivotal role, you will lead a dynamic group of engineers dedicated to enhancing the observability of our developer platforms. You will be responsible for driving technical innovation, mentoring your team, and collaborating closely with cross-functional partners to deliver exceptional developer experiences.As a leader, you will empower your team to excel in building tools and solutions that provide insights into system performance, ensuring our developers have everything they need to thrive. If you are passionate about technology, leadership, and fostering a culture of excellence, we want to hear from you!

Join LaunchDarkly as a Frontend Engineer focusing on AI Configurations, where you will play a crucial role in shaping the future of feature management. You will work closely with our innovative engineering team to develop scalable, user-friendly interfaces that enhance customer experience. Your expertise will help us build sophisticated tools that leverage artificial intelligence for dynamic configuration management.

About tvScientific tvScientific is the pioneering CTV advertising platform tailored specifically for performance marketers. We harness extensive data and advanced scientific methods to automate and enhance TV advertising, driving significant business results. Our integrated solution encompasses media buying, optimization, measurement, and attribution within a single, efficient platform. Developed by industry veterans with a rich background in programmatic advertising, digital media, and ad verification, our CTV performance platform is designed to be a trusted resource for advertisers seeking to expand their business. We are in search of a Senior QA Engineer for our Web Platform, possessing robust skills in both web and API testing. This role demands a blend of manual testing proficiency and automation expertise, concentrating on validating comprehensive user flows across frontend, backend services, and APIs. In this position, you will work closely with frontend developers, backend engineers, product managers, and designers to guarantee our web platform and APIs are dependable, secure, and high-performing. Key Responsibilities: Take ownership of quality assurance for web platform features, including UI, APIs, and backend services. Design and implement manual test cases and conduct exploratory testing for intricate web and API workflows. Perform thorough regression testing upon bug resolution. Create and sustain automated test suites for: Validating frontend-backend integration, data consistency, and error management. Carrying out API contract testing, schema validation, and negative/edge-case testing. Collaborate with engineers during design, development, and code review phases to enhance testability and identify issues early. Integrate automated tests into CI/CD pipelines for prompt, reliable feedback. Analyze test outcomes, investigate root causes, and drive resolution of issues. Promote quality best practices, including shift-left testing, risk-based testing, and automation strategies. Document and track software defects utilizing bug tracking tools such as Jira. Qualifications: Proven experience in QA/Quality Engineering with a strong emphasis on web platforms and APIs. Hands-on experience with manual testing of complex, consumer-facing web applications. Solid experience in test automation frameworks and tools. Familiarity with CI/CD practices and tools. Effective communication skills and the ability to work collaboratively within a team. Strong analytical and problem-solving abilities. Experience with performance and security testing will be a plus.

AllTrails brings together millions of outdoor enthusiasts, offering an extensive library of trails and resources to support outdoor adventures. The platform aims to make nature accessible to everyone and encourages responsible enjoyment of the outdoors. Role overview The Android Engineer position at AllTrails is fully remote within the United States. While applicants from across the country are welcome, there is a preference for those based near San Francisco CA, Portland OR, Seattle WA, Denver CO, or New York NY. Living near these cities can make it easier to participate in Trail Days, collaborative meetings, and community events, though remote work remains the standard. Employees located in San Francisco are invited to visit the office once a week for in-person collaboration. This role combines the flexibility of remote work with opportunities to connect with colleagues and the broader AllTrails community.

Join Strava: Where Active Lives ThriveStrava is the premier application for active individuals, boasting a vibrant community of over 180 million athletes across more than 185 countries. It's not just about tracking workouts; it's about fostering progress and achieving personal milestones together. Whether you enjoy running, cycling, swimming, or any other sport, Strava is your partner in success. Connect with others, surpass your goals, and ensure that every effort counts. Embark on your journey with Strava today.Our mission is straightforward: to inspire individuals to lead their most active and fulfilling lives. We firmly believe in the transformative power of movement to unite and propel people forward.As part of the Foundation engineering team at Strava, you will play a critical role in maintaining the infrastructure that supports millions of athletes worldwide. We design and refine tools and systems that empower our developers, sales, and support teams to deliver features with confidence, safety, and efficiency. In your role as a Senior Engineer, you will be instrumental in shaping and enhancing Strava’s internal platform and administrative tools. This is your chance to significantly impact by modernizing internal tools for customer support teams, enhancing their productivity and their ability to deliver outstanding athlete experiences.We embrace a hybrid work model, allowing you to spend more than half your time on-site at our San Francisco office — three days each week.

Join tvScientific as a Senior Quality Assurance Engineer and play a pivotal role in ensuring the quality and reliability of our innovative advertising technology solutions. You will collaborate with cross-functional teams to define testing strategies, develop automated tests, and enhance our testing frameworks.Your expertise will help us deliver high-quality software that meets and exceeds customer expectations. If you are passionate about quality assurance and looking to make a significant impact in a dynamic environment, we want to hear from you!

Join our dynamic team at BCforward as a JavaScript Software Developer. We are looking for a talented developer who is passionate about building innovative applications and enhancing user experiences. In this role, you will collaborate with cross-functional teams to design, develop, and implement web applications using JavaScript frameworks.

About Cognition Cognition builds applied AI products, including Devin (an AI software engineer) and Windsurf (an AI-native IDE). The company’s vision centers on AI working alongside engineers as a true collaborator. The team remains small and highly skilled, with backgrounds at organizations such as Scale AI, Palantir, Cursor, and Google DeepMind. Role Overview The Full-Stack Engineer position at Cognition involves full ownership of product features, spanning backend systems that coordinate software agents and manage persistent tasks, as well as frontend interfaces for developer-facing tools. This role blends system architecture with user interface design, supporting products that aim to transform how software is built. Work closely with both backend and frontend, using knowledge of agent execution to improve the developer experience in products like Devin and Windsurf. What You Will Do End-to-End Feature Development: Lead feature work from API design and backend logic through to a polished frontend, ensuring quality and timely delivery. Backend System Development: Build APIs, services, and data pipelines for Devin’s task execution, session management, tool integrations, and real-time events. Frontend Experience Design: Create fast, responsive, and intuitive interfaces for developers using Devin and Windsurf. Model Integration: Work with researchers and infrastructure engineers to bring new model features into the product, connecting backend capabilities to user-facing functions. Performance and Reliability: Maintain high standards for backend efficiency, correctness, frontend responsiveness, and UI consistency. What We Look For Backend Engineering: Proficiency in Python and experience building scalable, well-structured APIs and services. Frontend Skills: Proven ability to develop responsive, engaging user interfaces. Location This role is based in the San Francisco Bay Area.

Astranis is revolutionizing satellite technology by constructing cutting-edge satellites designed for high orbits, significantly enhancing humanity's capabilities in space exploration. Our satellites deliver dedicated, secure communication networks to a diverse clientele, including large corporations, government entities, and the U.S. military. With five satellites successfully launched and a robust pipeline of contracts worth over $1 billion, Astranis is at the forefront of satellite communications.As the preferred partner for clients with demanding requirements for reliability, data security, network visibility, and customization, we have attracted over $750 million in investments from prestigious firms like Andreessen Horowitz, Blackrock, and Fidelity. Our headquarters, spanning 153,000 square feet in Northern California, is home to a talented team of 450 engineers and entrepreneurs who design, build, and operate our satellites.Hardware Design Intern - Software Defined Radio Team (Summer 2026)Join us for a twelve-week internship that offers an invaluable opportunity for students currently enrolled in a four-year university program. At Astranis, we empower our interns to tackle significant challenges and contribute meaningfully to complex projects. Many of our past interns have played key roles in designing and testing hardware and software that are now operational on our first satellite, with many transitioning to full-time positions within the company.If you have already graduated from a four-year university, we encourage you to apply for the Associate Engineer position.

About SemgrepSemgrep is at the forefront of code security, enabling developers to innovate seamlessly. Our platform allows teams to detect, highlight, and resolve genuine security issues before releasing code. With an adaptive security model that evolves as you build, Semgrep secures your code continuously, ensuring developers can work swiftly without compromising safety. Trusted by industry leaders like Snowflake, Dropbox, and Figma, our solution utilizes AI to minimize false positives and prioritize actionable vulnerabilities. Backed by top-tier investors and recognized by Gartner in Application Security Testing, Semgrep is committed to making zero false positives achievable while significantly reducing the burden on AppSec teams.About the TeamThe Internal Security & Tech Ops team is dedicated to fortifying our organization and safeguarding our customers' data. We provide essential tech services to Semgrep employees and play a pivotal role in enhancing our security posture. Our mission is to elevate Semgrep's security standards and foster a culture of continuous improvement through automation and cutting-edge technologies. We collaborate closely with various teams to ensure comprehensive security across the company.About the RoleAs a Senior Security Engineer, you will spearhead our product-centric security initiatives. Collaborating directly with our Engineering teams, you will enhance our Cloud and Product Security. We seek candidates with substantial software engineering backgrounds who excel at identifying security vulnerabilities and integrating security into future development. A successful candidate will embody both a builder's mindset and a breaker’s analytical skills.

Join Us in Revolutionizing AI Development!At Cognition, an innovative applied AI lab, we are creating cutting-edge end-to-end software agents. Our flagship products, Devin—the pioneering AI software engineer—and Windsurf, the AI-native Integrated Development Environment (IDE), encapsulate our mission to foster collaborative AI teammates. Our vision empowers engineers to tackle complex challenges and elevate team ambitions.We take pride in our exceptional team comprised of world-class competitive programmers, visionary founders, and industry leaders from prestigious companies at the forefront of AI innovation, including Scale AI, Palantir, Google DeepMind, Waymo, and Tesla.While we have made significant strides in developing Devin and Windsurf, our most formidable challenges are still ahead. If you are eager to address some of the most pressing global issues and build AI that can interpret and solve real-world tasks, we invite you to apply.Your Role as a Product EngineerThe AI coding landscape has matured considerably over the past two years, leading to heightened user expectations for seamless, delightful, and polished experiences. Meeting these demands across our diverse platforms—including IDE, web, and soon CLI—requires a skilled team and innovative approaches.We seek talented engineers with exceptional UI/UX skills and a knack for product refinement. Your ability to make informed decisions about product design and user experience will be key to our success.As a Product Engineer in our fast-paced startup environment, you will play a crucial role in redefining how developers interact with coding agents. Collaboration will be essential as you work with fellow engineers, product teams, and design partners at Cognition.Your Responsibilities:Deliver products and engage with users!Overcome technical challenges with creativity and determination.Create high-performance, user-friendly experiences that developers will love.Establish benchmarks for the user experience of AI agent products.What We Are Looking For:A proficient engineer with a keen eye for detail, a thoughtful approach to UX, and a strong sense of empathy for users.A proven track record of impactful achievements and contributions.A readiness to work diligently, adapt swiftly, and embrace challenges head-on.

About the RoleJoin our innovative team as an AI Product Engineer at Bunkerhill Health. We are at the forefront of healthcare technology, processing over 200,000 CT scans and millions of patient records annually to enhance patient outcomes across various health systems.In this pivotal role, you will take charge of product features from conception through deployment, collaborating closely with cross-functional teams to create impactful software solutions. Your work will involve cutting-edge workflows, and you will excel if you relish solving diverse technical challenges at the intersection of product and engineering. This role is predominantly backend-oriented, with the chance to contribute across the entire technology stack.Our bright and welcoming office is located in SoMa, San Francisco, where we come together in person three times a week!

About UsAt Software Apps Inc., we are pioneering the field of natural-language computing with our flagship product, Sky, designed specifically for Mac users. Our team is driven by a shared commitment to innovation, collaboration, and excellence. To learn more about our mission and values, visit www.software.inc/jobs.The RoleWe are seeking a talented LLM Engineer to be a vital contributor to our product development. In this role, you will design and optimize our data pipelines, refine our system architecture, and implement evaluation mechanisms. Your expertise will guide strategic decisions, balancing ambition with practicality, while you manage the iterative process of fine-tuning, evaluation, and deployment.Your Daily Responsibilities Will Include......Innovating Exceptional Software. Your enthusiasm and insight will transform visionary concepts into actionable strategies, even if it sometimes means taking risks without a clear path ahead. Your capacity to learn and adapt is more crucial than existing knowledge....Taking Full Ownership of Projects. You will be the driving force behind the success of your systems and features, demonstrating a commitment to delivering results. Your proactive approach will ensure continual improvement through feedback and quality enhancements....Influencing Architectural Decisions. Leverage your familiarity with the latest model architectures to create robust systems for data collection, training, and inference. Your role will include optimizing model performance while carefully considering user privacy and effective data gathering....Thinking Both Broadly and Precisely. You recognize that your infrastructure choices significantly affect the end-user experience. With a focus on performance, you will develop large-scale models for cloud inference or finely tuned on-device models that prioritize efficiency.

The preferred candidate should be local to and willing to work from any of our offices (Silver Spring, NYC, SF, Miami, Denver) 1-2 times per week. ABOUT ROCKET MONEY At Rocket Money, our mission is to significantly enhance the financial well-being of millions. We empower our members with a profound understanding of their finances and provide valuable services designed to save them time and money, thereby facilitating their financial journey. ABOUT THE TEAM The Rocket Ready team collaborates with clients to strengthen their readiness for homeownership, merging the capabilities of Rocket Money with those of Rocket Mortgage. We develop innovative technology and solutions that empower both our clients and the internal teams who assist them. Key products we support include: User-facing public web applications and CRM systems for aspiring homeowners. Internal tools aimed at enhancing the efficiency of licensed mortgage bankers and consultants. Data pipelines to receive, enrich, and operationalize data across the organization. Our platform is just over a year old, and much of our work is focused on greenfield development with a small team. We also engage extensively with existing systems within our broader parent organization, ensuring a balance of concentrated development and collaborative teamwork across the company. A selection of technologies we frequently use includes: Python, FastAPI, UV, Kafka, Confluent, React, TypeScript, TanStack, C#, .Net, Postgres, Docker, Kubernetes, Terraform, Salesforce, AWS, and GitHub Actions. ABOUT YOU ‍ We are seeking seasoned full-stack software engineers who can take ownership of transforming our team’s concepts and requirements into tangible solutions. Ideally, you possess extensive knowledge of our tools and tech stack, enabling you to contribute effectively from day one. More importantly, you are a driven learner focused on growth—both personally and for the organization as a whole. You would be an excellent fit if you: Have 7+ years of experience in relevant software engineering projects. Exhibit an entrepreneurial mindset and are eager to leverage your technical skills to drive positive business outcomes. Produce clean, reliable code across various platforms. Have substantial professional experience with one or more of the following: Python, React (or similar frontend framework), Postgres (or a comparable relational database). Are naturally collaborative, inquisitive, and communicative, enjoying idea exchange.

Join the Bretton AI TeamBretton AI stands at the forefront of innovation in the financial services sector, offering a premier AI agent platform. Our technology is trusted by industry leaders such as Robinhood, Mercury, and Gusto, enabling them to streamline critical operations including anti-money laundering and counter-terrorism investigations.Having successfully raised over $95 million from esteemed investors like Greylock, Y Combinator, and Thomson Reuters Ventures, our dynamic team is located in the heart of San Francisco, bringing together talent from elite organizations such as SpaceX, Google, Netflix, and Stripe.Your Role as a Forward Deployed EngineerAs a Forward Deployed Engineer (FDE), you will be instrumental in collaborating directly with clients to deploy and integrate Bretton’s cutting-edge platform within complex real-world environments. This position uniquely combines elements of engineering, customer engagement, and product development, enabling you to help clients leverage our technology while gathering insights that will enhance and expand our product offerings.Key ResponsibilitiesImplement Bretton's AI agents across banks, fintech firms, and payment processors, adeptly managing security and compliance challenges associated with regulated industries.Travel to client sites to address last-mile connectivity issues, ranging from core banking integrations to troubleshooting scenarios that arise in live production.Collaborate with BSA officers, AML analysts, and risk management teams to translate their operational workflows and regulatory obligations into actionable agent behaviors.Develop connectors, configuration tools, and internal frameworks that transform bespoke client solutions into scalable platform capabilities.Guide clients through the implementation process as a trusted technical advisor, helping them resolve challenges swiftly and maximize their investment in Bretton's solutions.Work cross-functionally with engineering, product, and go-to-market teams to eliminate obstacles and ensure client success.Diagnose and solve issues during real deployments by replicating problems and collaborating with the engineering team to implement solutions.Convert customer usage data into actionable product insights by communicating their needs with engineering and product teams, identifying opportunities to integrate recurring solutions as formal product features.

ABOUT THE ROLE:As a Full Stack Engineer at Varick Agents, you will play a pivotal role in developing the foundational infrastructure and product interfaces that drive our agent deployments. While this position is not client-facing, your contributions will ensure that each deployment is executed with enhanced speed, reliability, and consistency.This dynamic role requires you to engage with backend services, APIs, data pipelines, and user interfaces. Your responsibilities will include creating the orchestration layer for agent execution and developing the dashboards and controls utilized by clients, ensuring that every line of code you write supports real enterprise operations.WHAT YOU'LL DO:Develop and manage backend services for agent orchestration, tool activation, and workflow execution.Design and implement product interfaces for agent monitoring, human-in-the-loop controls, and client dashboards.Construct data pipelines that integrate with various enterprise systems such as ERPs, CRMs, and data warehouses.Create internal tools that expedite deployment processes and minimize engineering time for individual clients.Ensure the reliability, observability, and performance of production systems.Collaborate closely with Frontend Developers to transform client-specific solutions into reusable platform capabilities.WHAT WE'RE LOOKING FOR:At least 3 years of experience in software engineering, specifically in building production systems.Strong understanding of backend fundamentals including APIs, databases, cloud infrastructure, and distributed systems.Proficiency in full stack development, capable of creating both backend services and the UI that interfaces with them.Production experience with Python.Familiarity with cloud infrastructures such as AWS, GCP, or Azure, including containers, managed databases, and CI/CD practices.A commitment to code quality, testing, and the deployment of stable solutions.HELPFUL EXPERIENCE:Experience integrating with enterprise systems (REST/SOAP APIs, webhooks, ETL pipelines).Knowledge of large language model APIs and agent frameworks.Frontend development experience with technologies like React or Next.js.Experience with Infrastructure as Code tools like Terraform or Pulumi.Background in building multi-tenant SaaS or platform products.Experience in startup or early-stage environments.WHY VARICK:Join an innovative team at Varick Agents where you can make a significant impact through your engineering expertise.