Senior Tooling Quality Engineer

Join Handshake as a Senior Software Engineer specializing in Operator Tooling. In this role, you will be instrumental in enhancing our operational efficiency through innovative tooling solutions. Your expertise will help streamline processes and empower our operators to deliver exceptional outcomes.

Join Scale AI as a Senior Software Engineer where you will play a crucial role in designing, developing, and managing secure and scalable infrastructure that empowers our team to excel in their work. You will collaborate with an innovative, agile, and solution-focused team dedicated to automating processes in identity and access management, endpoint management, and our extensive SaaS ecosystem. The right candidate will harness a variety of internal and external platforms to create applications, Slackbots, and dashboards for internal users while optimizing intricate workflows through automation. Your contributions will significantly enhance the operational efficiency of all General and Administrative teams within the company.Your Impact:As a full-stack engineer (60% backend / 40% frontend), you’ll collaborate with your team to create exceptional tools and applications for both internal use and external partners.You will be responsible for designing, developing, testing, and supporting full-stack applications on cloud-native distributed systems.You will establish real-time integrations with SaaS platforms across the organization.Develop a comprehensive quality framework/unit tests to ensure product performance, quality, and load handling, while effectively debugging and identifying system issues.Engage with broader teams, participate in engineering councils, conduct code reviews, and enhance our delivery processes.Work closely with the IAM team to manage cloud-based identity (Okta) and access controls, ensuring adherence to security protocols and standards for internal applications.Collaborate cross-functionally to identify opportunities for technological improvements and implement self-service solutions.

Join Airwallex as a Senior Software Engineer - AI ToolsAre you ready to make a significant impact in the world of global finance? At Airwallex, we are the leading unified payments and financial platform for businesses around the globe. Our innovative solutions empower over 200,000 businesses, including industry giants like Brex, Qantas, and SHEIN, to seamlessly manage everything from accounts to treasury operations.Founded in Melbourne and now boasting a team of over 2,000 talented individuals across 26 offices worldwide, we are valued at $8 billion and supported by top-tier investors such as T. Rowe Price and Visa. If you're eager to take on challenging projects and grow your career, we want you on our team.What We ValueWe seek dynamic builders with a passion for innovation and a desire to take ownership of their work. You should bring a wealth of expertise and a sharp, analytical mindset, driven by our mission and operating principles. Your ability to make quick yet sound decisions while exploring new avenues will be paramount.As a collaborative team player, you will turn groundbreaking ideas into tangible products and drive our projects to completion. Leveraging AI will be key to working efficiently and solving problems swiftly. Join us in addressing complex challenges with exceptional colleagues while advancing your career in the future of global banking.Your RoleAs a Senior Software Engineer focusing on AI tools, your mission will be to maintain the security of over $150 billion in payments across 150,000 companies and thousands of employees.You will collaborate with internal teams to identify impactful projects, such as developing automation tools, managing our extensive log pipelines, and employing AI to enhance team operations. We value versatility and intelligent problem-solving over specific technologies, so you'll have the freedom to choose the best approaches. Additionally, you'll play a crucial role in mentoring junior engineers and contributing to the growth of our exceptional engineering team.

About AnthropicAt Anthropic, we are dedicated to developing AI systems that are safe, interpretable, and controllable. Our mission is to ensure that AI technology benefits not just our users, but society as a whole. We are a dynamic and rapidly expanding team of researchers, engineers, policy experts, and business leaders, all working collaboratively to create AI solutions that truly enhance human capability.About the RoleThe Research Tools team at Anthropic is at the forefront of AI safety and capability research, and we require outstanding software solutions to optimize our efforts. As a Senior Software Engineer on this team, you will be pivotal in creating the infrastructure and applications that empower our researchers to conduct complex experiments, iterate rapidly, and derive insights from cutting-edge AI systems.This role merges product development with full-stack engineering. You will collaborate closely with researchers and engineers to understand their workflows, identify roadblocks, and deliver swift solutions that enhance productivity. Whether you are developing interfaces for human feedback on model evaluations, creating platforms for orchestrating experiments, or crafting innovative visualization tools to interpret model behavior, your contributions will significantly advance our mission to build trustworthy AI systems.We seek an individual who thrives in ambiguous environments, possesses a high degree of autonomy, and can swiftly acquire domain knowledge to drive impactful projects from inception to completion.No prior machine learning or research experience is necessary.

Join Baseten as a Software Engineer focused on Billing and Internal Tooling, where you will play a crucial role in developing and enhancing our internal systems. You will collaborate with cross-functional teams to create efficient billing solutions and streamline internal processes. Your contributions will directly impact our operational efficiency and customer satisfaction.

About KiddomKiddom is an innovative educational platform dedicated to fostering student equity and growth by integrating top-tier instructional materials with engaging digital learning experiences. With unparalleled curriculum management tools, Kiddom enables schools and districts to take charge of their curriculum, creating customized learning experiences that cater to the unique needs and aspirations of their communities. Our high-quality curriculum comes equipped with powerful insights for teachers and leaders, driving the ongoing enhancement of instructional strategies, school and district programming, and professional development.The Tooling team at Kiddom is responsible for developing and maintaining the essential systems that empower all engineering teams to produce reliable, scalable, and efficient software solutions. As a Senior Backend Engineer on this team, you will concentrate on crafting backend services, automation frameworks, and internal developer tools that enhance the speed and reliability of our entire platform.Your contributions will significantly influence how Kiddom engineers design, deploy, and monitor systems at scale, with a strong focus on clean, maintainable, and testable code, primarily in Python, with additional opportunities to work with GoLang.

Join our dynamic team at Sentry as a Staff Software Engineer specializing in AI Developer Tooling. In this pivotal role, you will contribute to the development and enhancement of cutting-edge AI tools that empower developers worldwide. Collaborate with cross-functional teams to identify challenges and deliver innovative solutions that optimize the software development lifecycle.

P-78 While candidates in the listed locations are encouraged for this role, candidates in other locations will be considered. At Databricks, we are dedicated to empowering data teams to tackle the world's most challenging problems—from realizing the next mode of transportation to advancing medical breakthroughs. We accomplish this by creating and managing the premier data and AI infrastructure platform, enabling customers to leverage deep data insights for business enhancement. Founded by engineers and with a strong customer focus, we eagerly embrace every opportunity to address technical challenges, from crafting cutting-edge UI/UX for data interaction to scaling our services and infrastructure across millions of virtual machines. And this is just the beginning. As a Senior Software Engineer on the Infrastructure teams, you will develop scalable systems that underpin the Databricks platform, positioning it as the go-to solution for executing Big Data and AI workloads. Your role will involve enhancing the Databricks infrastructure platform, encompassing multi-cloud systems and services designed to manage thousands of Kubernetes clusters at scale, storing petabytes of data, providing highly scalable and distributed API gateways, implementing a rate limiting framework, ensuring network security and encryption, and creating developer tools and infrastructure (we utilize Bazel), testing frameworks, and scalable CI/CD systems, among many other responsibilities. The impact you will have: Expand and enhance key components of the core Databricks infrastructure. Design multi-cloud systems and abstractions to enable the Databricks product to operate across existing Cloud providers. Enhance software development workflows to improve engineering and operational efficiency. Utilize our own data and AI platform to analyze build and test logs and metrics, identifying areas for enhancement. Create automated build, test, and release infrastructures. Establish and maintain engineering process standards to support our growth and success.

At Thinking Machines Lab, our mission is to enhance human potential through the advancement of collaborative general intelligence. We aspire to create a future where everyone can harness the knowledge and tools necessary to utilize AI for their unique objectives.We are a diverse team of scientists, engineers, and builders, responsible for developing some of the most utilized AI products, including ChatGPT and Character.ai, alongside open-weight models like Mistral. Our contributions extend to popular open-source projects such as PyTorch, OpenAI Gym, Fairseq, and Segment Anything.About the RoleWe are in search of a Developer Productivity Engineer who will play a pivotal role in transforming our software development process to be safer, faster, and more enjoyable. Your primary focus will be on AI tools and coding agents, collaborating closely with platform, security, and product engineers to craft state-of-the-art tools for AI-assisted software development, significantly speeding up our internal processes.This role encompasses establishing company-wide platforms and working directly with developers to enhance their individual workflows.Note: This is an evergreen role that remains open for ongoing interest. While we receive numerous applications, there may not always be an immediate match for your skills and experience. We encourage you to apply as we continuously review submissions and reach out as new opportunities arise. You are welcome to reapply after gaining more experience, but please refrain from applying more than once every six months. Occasionally, we post specific roles for targeted projects or teams; in those cases, feel free to apply directly alongside this evergreen listing.What You’ll DoEmpower researchers and engineers to leverage AI for improved coding productivity while maintaining high code quality.Standardize AI coding tools such as Claude Code, Cursor, and Codex, helping to configure, secure, and maintain these tools while balancing organization-wide settings with individual developer preferences.Create secure, reproducible agent sandboxes for remote development and continuous integration testing.Establish golden-path development environments and safeguard measures for sensitive information.Assist individual contributors in crafting their personalized AI-enabled workflows.Monitor tool usage, reliability, and cost.

About the RoleWe are seeking a highly skilled Senior Automation and Tools Engineer to enhance our platform's scalability, reliability, observability, and operational excellence. In this pivotal role, you will collaborate with engineers and data scientists to design, automate, and sustain the infrastructure that drives our core platform, which includes data pipelines, machine learning workloads, and real-time analytics systems.This is a hands-on, impactful position with visibility across the tech stack, providing a unique opportunity to influence the future of our infrastructure and operations.Key ResponsibilitiesCollaborate closely with Site Reliability Engineers (SREs) and developers to automate and manage datacenter and cloud-based infrastructure, focusing on build and deployment systems, as well as configuration management.Enhance system reliability and performance through automation, observability, and proactive capacity planning.Develop and configure tools for datacenter provisioning, configuration management, and observability using both standard and custom tools.Elevate developer experience by providing self-service tools.Implement and uphold monitoring, alerting, and incident response processes including Service Level Objectives (SLOs), runbooks, and on-call rotations.Foster collaboration across engineering and data science teams to cultivate a culture of performance and reliability.Maintain security, compliance, and operational readiness across our physical and cloud infrastructures.Lead post-incident reviews and continuous improvement initiatives.

About SesameAt Sesame, we envision a future where technology transcends mere functionality to become an intuitive part of our daily lives. Our mission is to create lifelike computers capable of perceiving, understanding, and interacting with us in a natural way. We are pioneering a new generation of computing focused on integrating voice agents seamlessly into everyday routines. Our team is a blend of innovators from Oculus and Ubiquity6, alongside seasoned professionals from Meta, Google, and Apple, each bringing unparalleled expertise in hardware and software. Join us in crafting a future where computers truly come alive.About the RoleAs a Software Engineer specializing in internal tools at Sesame, you will play a key role in developing and maintaining pipelines and tools that process audio and text data. You will be responsible for producing and evaluating trained AI models for both text and voice interactions. Collaborating with machine learning engineers, researchers, and cross-functional teams, you will create tailored solutions that cater to the needs of your colleagues. The ideal candidate is not only a proficient software engineer but also possesses a keen sense of UI/UX design for custom internal tools. You will develop and sustain React-based web applications that enable teams to manipulate extensive datasets in the cloud, as well as maintain the cloud-deployed Python infrastructure that powers our innovative products. Being a dynamic startup, Sesame values adaptability; therefore, you should be comfortable exploring various technical domains, learning new tools and services, and applying best practices for robust software development and deployment.Responsibilities:Contribute to the enhancement of our machine learning infrastructure, internal tools, and data management systems.Boost developer productivity and ensure application reliability through investment in developer tooling and best practices.Required Qualifications:Demonstrated experience in navigating ambiguous work environments independently.Proven background in machine learning infrastructure, internal tooling, and data management.Experience collaborating with machine learning and research teams.Familiarity with developing consumer-oriented, scalable applications.Knowledge of database management systems.Bachelor's degree or higher in Computer Science or a related field.At least 3 years of professional experience in a similar role.

About the Role OpenAI is looking for a Software Engineer specializing in Kernel Performance and AI Tooling to join the team in San Francisco. This role centers on improving software systems for maximum efficiency and building advanced tools that support AI development. What You Will Do Optimize kernel-level performance across OpenAI's software stack. Design and implement tools that accelerate AI research and deployment. Work closely with engineers to identify bottlenecks and deliver practical solutions. Contribute to technical discussions and share knowledge with teammates. Team and Collaboration Work alongside engineers who are committed to advancing AI technology. Collaboration and innovation are central to the team’s approach.

About Collective:At Collective, we're on a transformative journey to revolutionize the way independent professionals operate. Our innovative technology, combined with a dedicated team of advisors, enables our members to attain financial self-sufficiency by streamlining processes such as business incorporation, accounting, bookkeeping, tax services, and community access—all within a unified platform. We empower freelancers to harness the same tax advantages as large corporations, allowing them to devote their energy to what they love instead of paperwork.Featured by prominent media outlets including Forbes, Business Insider, Yahoo, Bloomberg, Financial Times, and TechCrunch, we are supported by renowned investors such as General Catalyst, Sound Ventures (Ashton Kutcher and Guy Oseary), QED Investors, Google's Gradient Ventures, and Expa, who have backed legendary companies like YouTube, Substack, Twitch, Box, Hims, Instacart, and Lyft.Role Overview:We are seeking a Senior Software Engineer to enhance and innovate the core product experiences that drive Collective's member platform. This role offers significant ownership across the entire tech stack, collaborating closely with Product, Design, and Operations teams to deliver promptly and iterate based on genuine customer feedback. You will leverage cutting-edge AI tools and agent-based workflows to speed up development, enhance code quality, and unlock new product functionalities. This position is perfect for engineers who prioritize outcomes over tasks and view AI as an integral component of modern software development.Key Responsibilities:Take full ownership of features—identify problems, craft solutions, deploy, and refine until optimal.Deliver high-quality, user-centric product experiences across both frontend and backend systems.Collaborate with Product and Design teams to translate ambiguous challenges into straightforward, effective solutions and implement them.Utilize AI-driven development tools (code generation, copilots, agent workflows) to enhance efficiency and reduce manual tasks.Identify and integrate AI features into the product that significantly enhance the member experience.Continuously ship updates, monitor what you build, and use user behavior and feedback to inform subsequent iterations.Make informed system design choices that balance speed, scalability, and maintainability—taking ownership of the tradeoffs involved.Enhance developer workflows through automation, internal tools, and AI-assisted processes.

About UsAt Foundry Robotics, we are pioneering an AI-driven, assembly-centric contract manufacturing model. Our approach integrates software-defined manufacturing, where both robots and humans collaborate to achieve tangible production outcomes.Our unique value proposition transcends simple models; we deliver a powerful software infrastructure that converts:Orders into SchedulesSchedules into Work InstructionsWork into TelemetryTelemetry into Continuous Improvement of Throughput, Quality, and CostThis position is focused on senior software engineering, specifically in creating the cloud and on-premises systems that operate the factory, alongside the data architecture that ensures these systems are observable, reliable, and scalable.Please note, we are also recruiting Robotics Research Engineers separately; this role is distinct from that.The RoleWe are in search of a Senior Software Engineer (Individual Contributor) to develop the backend systems and infrastructure that will drive the factory of the future.Your responsibilities will include designing and implementing:Cloud-based backend systemsOn-premises factory servicesEmbedded-to-cloud data flowsPetabyte-scale visual data pipelinesMachine learning infrastructure across diverse computational environmentsYou will be tasked with creating production systems that remain operational in challenging conditions, such as noisy factories, unreliable connectivity, and the real costs associated with downtime.This is a practical engineering role where you will be expected to deliver tangible results.Key ResponsibilitiesCloud & On-Prem ArchitectureDevelop and sustain a cloud-based backend for planning, scheduling, execution, inventory management, traceability, and telemetryDesign architectures that span embedded, on-premises, and cloud systems across multiple compute environmentsImplement infrastructure-as-code principles using TerraformEnsure secure and reliable data transfer between the factory floor and the cloudML Infrastructure & Data SystemsEstablish petabyte-scale visual data pipelines for the ingestion, curation, indexing, and preparation of manufacturing data

Y Combinator is a distinguished accelerator that empowers budding entrepreneurs to launch innovative startups like Airbnb, Stripe, Reddit, and DoorDash. Nestled in the heart of the San Francisco Bay Area, our team collaborates closely to cultivate the next generation of industry leaders. We embody the same philosophies we instill in our startups, making it a unique environment for those familiar with Paul Graham's essays or our engaging YouTube videos.Joining Y Combinator places you in the epicenter of the startup ecosystem.Role OverviewIn our quest to scale operations, we develop a range of software solutions tailored for Y Combinator's internal use. A key focus is creating internal tools that enhance the efficiency of our operations. Our primary users are YC employees such as Group Partners who require productivity tools to engage with thousands of startups, finance teams managing investment documentation, and legal teams addressing diverse startup-related legalities.In this position, you will:Design and develop comprehensive features. Our team is dedicated to supporting founders beyond their batch experience, including creating event software and engagement tools to maintain lasting connections with companies.Collaborate with YC Partners on productivity software. We’ve developed integrations like Gmail plugins and dashboards to facilitate quick engagement with founders.Define and prioritize the development roadmap. We constantly evaluate the balance between effort and impact, with engineers playing a crucial role in determining what features are most essential to tackle next.Assess usage and engagement metrics. We strive to identify what functionalities succeed or fail, emphasizing the importance of continuous improvement for long-term success.Team DynamicsOur software team consists of just 15 full-stack product engineers, fostering a collaborative environment where we all know each other personally. With diverse experiences from major companies like Meta and Google, many team members have also launched their startups. In line with YC's philosophy, our engineers frequently interact with customers and prioritize rapid deployment, while also shaping our roadmap and designing our own projects.

Join Cloudflare as a Senior Infrastructure Tooling Software Engineer and play a pivotal role in enhancing our infrastructure capabilities. In this hybrid position, you will collaborate with cross-functional teams to develop innovative tooling solutions that streamline processes and improve operational efficiency. Your expertise will help us maintain our commitment to delivering fast and secure internet experiences.

Role overview ditto is seeking a Senior Platform Engineer, Operator for a fully remote role. This position is open to candidates located in Atlanta, Austin, San Francisco, or Seattle. The focus is on designing, building, and maintaining systems that keep company operations running smoothly and efficiently at scale. What you will do Design and implement systems that improve platform scalability, performance, and reliability. Maintain and enhance the existing infrastructure to support ongoing business operations. Work closely with cross-functional teams to address technical challenges and streamline processes. Use technical expertise and leadership to drive key platform initiatives. Requirements Extensive experience in platform engineering. Strong problem-solving abilities and a collaborative mindset. Proven ability to contribute technical insights and lead engineering projects. Location This is a remote position. Candidates must be based in Atlanta, Austin, San Francisco, or Seattle.

About HappyRobotHappyRobot is pioneering the AI-native operating system tailored for the real economy, seamlessly bridging the gap between intelligence and actionable outcomes. By harnessing real-time data, specialized AI agents, and a central orchestrating intelligence, we empower enterprises to manage intricate, mission-critical operations with unparalleled autonomy.Our AI OS accumulates knowledge, optimizes processes across various levels, and adapts over time. We are initially focusing on supply chain and large-scale industrial operations, where resilience, speed, and ongoing enhancement are paramount—allowing human talent to concentrate on strategic, creative, and other high-value endeavors.Discover our vision further in our Manifesto. HappyRobot has successfully raised $62 million to date, including a recent $44 million in Series B funding in September 2025. Our esteemed investors include Y Combinator (YC), Andreessen Horowitz (a16z), and Base10—partners committed to our mission of transforming enterprise operations. We are channeling this investment into assembling a top-tier team: individuals driven by relentless ambition, adept problem-solving skills, and a passion for pushing boundaries in a dynamic, high-energy environment. If this resonates with you, we invite you to be part of HappyRobot.About The RoleAt HappyRobot, our Full Stack Engineers take ownership of significant components of our product and infrastructure, delivering from end to end.We seek innovators who thrive in uncertain environments, have a deep appreciation for their craft, and desire genuine ownership of their creations.

Join the Space Exploration Journey!As a Senior Software Engineer specializing in Space Infrastructure, you will play a pivotal role in enhancing our capabilities to manage a diverse fleet of satellites, including dedicated, rideshare, and constellation missions. Your work will involve the integration of automated satellite operations, both ground and flight software, while tackling challenges encountered in orbit.Our team is dedicated to ensuring the dependable, efficient, and standardized performance of Loft’s space infrastructure. You will oversee the operational stability of Loft satellites, focusing on the satellite bus, the Hub, and Loft's payloads, which serve as platforms for executing customer missions.Reliability is the cornerstone of Loft's business model and that of our clients. This role offers you the flexibility to engage with various systems, from coding for Cockpit, our mission control system, to writing software that runs onboard our satellites. Additionally, you may have the opportunity to serve as a Flight Director, overseeing the health and safety of our satellite fleet.