Role Description In this role, you'll own the engineering response to the hardest problems our customers run into. You'll work inside the Pipelines team — partnering closely with Support, TAMs, and Solutions Architects — to take escalations from symptom to root cause, ship fixes back into the product, and remove the underlying causes of recurring tickets. This is a deliberately different role from the traditional support engineering hamster wheel. We're not looking for someone to just clear tickets faster. We're looking for someone to own the space — to spot patterns, drive systemic fixes, and make Buildkite stickier and more reliable for the customers who depend on it most. - Own L3 escalations end-to-end — from symptom through diagnosis to a shipped fix - Work in our Ruby on Rails monolith and PostgreSQL databases to resolve issues at the source - Spot recurring patterns in support load and ship product changes that eliminate the underlying cause — the best support ticket is the one that never gets opened - Partner with Support, TAMs, and Solutions Architects on technical diagnostics for high-impact customers - Lead the engineering side of incident response when production issues require deeper investigation - Help improve the onboarding and migration experience for customers moving onto Buildkite from other CI/CD platforms - Take customer wins from intake to delivery — own them, follow through, don't drop the ball - Contribute to architectural discussions on platform reliability and customer experience - Provide or respond to feedback on GitHub pull requests Qualifications - 5+ years of experience in engineering - Comfortable working in a Ruby on Rails monolith — able to read, debug, and modify production code confidently - A track record of taking problems from symptom to root cause without losing focus or scope - Pattern recognition — you see recurring issues and propose systemic fixes rather than one-off patches - Comfortable in customer-facing conversations when escalations require it — can triage in real time, communicate clearly, and give customers confidence they're in the right hands - Comfortable with performance at scale — N+1 queries, indexing strategies, diagnosing slow paths - Experience using observability tools like Datadog, Honeycomb, etc. - Care about code quality and know how to balance perfect with practical - Calm and consistent under high volume — finish what you start - Understand good development practices: clear commits, thoughtful pull requests, and reliable tests with tools like RSpec Requirements - Key Technical Stacks & Components: - Ruby on Rails - PostgreSQL - GraphQL - React - Datadog - Amazon ECS - RDS Performance Insights - Terraform - Redis - Kafka Benefits - Competitive compensation and benefits package - Flexible, remote-first culture - Opportunities for professional growth, leadership, and technical ownership - Work alongside talented, passionate engineers building world-class developer tools - A collaborative, inclusive, and innovative culture where your ideas make a real impact Equal Opportunity Employer At Buildkite, we value diversity and celebrate all types of skills, backgrounds, and experiences. We’re dedicated to fostering an inclusive environment and providing reasonable accommodations throughout our recruitment process. If you need any accommodations or support during the application or interview process, please reach out to us at accommodations@buildkite.com.

• Partner directly with customers during pre-sales and post-sales technical engagements • Support proofs of concept, pilot implementations, and production-oriented deployments • Troubleshoot integration issues and help customers build within their own environments • Translate customer requirements into practical technical solutions • Collaborate closely with product, engineering, and go-to-market teams to unblock customer progress • Represent the company credibly in technical conversations with senior engineers and enterprise stakeholders • Surface recurring customer needs and implementation patterns to internal teams

Role Description We are looking for a Bazel Engineer to join our Scalable Builds department in a fully remote, distributed environment. In this role, you will: - Work closely with clients to design, implement, and optimize build infrastructure for large-scale software projects. - Help organizations improve developer productivity, build reliability, and engineering velocity by leveraging Bazel and related technologies. - Collaborate with experienced engineers across a variety of domains. - Contribute to open source projects. - Shape the future of build systems both within Tweag and in the broader Bazel ecosystem. This is an excellent opportunity for someone who enjoys solving complex technical problems while working directly with clients and the open source community. Qualifications - Strong hands-on experience with Bazel and modern build systems. - Senior-level experience in software engineering. - Strong understanding of build system architecture, scalability, and performance optimization. - Experience with developer productivity tooling and CI/CD environments. - Consultant mindset: confident yet humble, principled yet pragmatic. - Strong written and verbal communication skills. - Comfortable presenting technical solutions clearly to clients. - Ability to collaborate effectively in a fully remote environment. - Interest in exploring new technologies and contributing to open-source communities. Requirements - Experience migrating legacy build systems to Bazel or improving existing Bazel-based setups (Bonus points). - Experience setting up and optimizing Bazel remote caching and remote build execution (RBE) for performance and scalability (Bonus points). - Broad exposure to multiple programming languages and platforms (Bonus points). Benefits - Fully remote position with excellent work/life balance. - Deep diving into complex engineering challenges. - Sharing knowledge through open source contributions and community engagement. - Continuous learning and growing your expertise in scalable build infrastructure. - Representing Tweag while working with some of the world's most recognized brands.

Role Description Our client is seeking an experienced Lead Full Stack Engineer to build and scale critical systems across backend services and user-facing applications on their trading platform. This role is ideal for a strong individual contributor who enjoys solving complex engineering problems in environments where latency, correctness, reliability, and user experience are essential. The Lead Full Stack Engineer will contribute hands-on across core backend systems and frontend applications, working on components such as trading workflows, user lifecycle, risk and margin flows, financial data surfaces, and real-time interfaces. The ideal candidate will combine strong backend depth with frontend ownership and will be comfortable driving technical execution, code quality, and architectural decisions as an individual contributor. Roles and Responsibilities - Build and enhance backend services powering the trading platform, including user lifecycle, trade processing, and core financial workflows. - Develop and maintain frontend applications and interfaces used by traders for order placement, positions tracking, portfolio monitoring, and related workflows. - Contribute to the design and implementation of systems related to margin workflows, risk checks, balances, P&L calculations, and financial data accuracy. - Build scalable and performant APIs and services using Node.js or Golang, with strong attention to latency, concurrency, and system reliability. - Build responsive, intuitive, and high-performance user interfaces using React.js or equivalent frontend frameworks. - Work on real-time systems and interfaces, including APIs and WebSocket-based data flows used by retail traders, algorithmic traders, and institutional clients. - Make sound technical decisions for performance-critical and correctness-sensitive systems in collaboration with senior engineering stakeholders. - Review code and designs to identify scalability bottlenecks, concurrency issues, edge cases, and potential failure modes. - Participate actively in debugging production issues, incident response, root cause analysis, and follow-through fixes. - Collaborate closely with Product, Design, QA, Risk, and backend/frontend peers to deliver reliable and high-impact product features. - Drive engineering best practices around code quality, testing, observability, and maintainability through hands-on contribution and technical leadership. - Take end-to-end ownership of modules and features, from design and development to deployment and production support. Qualifications - Bachelor's degree in Computer Science, Engineering, or a related field. - 5–8 years of experience building production-grade software systems as a backend or full stack engineer. - Strong hands-on experience with backend technologies such as Node.js or Golang. - Strong hands-on experience with React.js or equivalent modern frontend frameworks. - Experience building and shipping systems where performance, reliability, data integrity, and user experience are critical. - Solid understanding of concurrency, asynchronous programming, API design, and distributed systems fundamentals. - Experience building frontend applications with complex state management, data-heavy interfaces, and real-time updates. - Ability to independently own and deliver features in a fast-paced environment while collaborating with cross-functional teams. - Strong problem-solving, debugging, system design, and communication skills. Preferred Skills - Experience building trading systems, fintech products, or exchange infrastructure. - Experience working on real-time dashboards, transaction-heavy systems, or high-throughput platforms. - Familiarity with WebSockets, event-driven systems, caching layers, and performance optimization. - Experience with cloud-native deployment environments, observability tooling, and production troubleshooting. - Ability to act as a technical anchor for modules and guide engineering decisions without people-management responsibility.