Senior Software Engineer – Grafana k6

Role Overview

• You will join a team of engineers responsible for building and maintaining k6, a performance testing tool written in Go.
• The team also maintains the open-source project, which means working directly on the product, the codebase, and with the community using it.
• In this role, you will work on features and improvements across the k6 codebase, from initial idea through implementation and delivery.
• Much of the work involves problems that are not fully specified up front and require understanding the context, evaluating trade-offs, and choosing a reasonable technical approach.
• You will work with a high degree of independence while collaborating closely with other engineers on design, implementation, and code reviews.
• You are expected to deliver production-quality code, maintain existing functionality, and help keep the system reliable and maintainable over time.
• Some work may involve the k6 cloud offering, which builds on top of k6 to run distributed tests across data centers worldwide.
• This includes Go services that support distributed execution and require careful attention to performance, correctness, and failure modes.
• Because the team is small, your work will have a direct and visible impact on the product and its users.
• You will work alongside experienced engineers in an environment that values clarity, pragmatism, and sound engineering judgment.
• We start with problems, not prescriptions. Engineers are expected to understand the constraints, propose a pragmatic design, and carry the work through to delivery.
• We move deliberately and release on a regular cadence of roughly every six weeks. Between releases, we focus on small, safe, incremental changes.
• Work is asynchronous by default, with decisions captured in pull requests and short design notes.
• Meetings are used for alignment rather than status updates. Code reviews focus on correctness, long-term maintainability, and user impact.
• When trade-offs are required, we aim to make them explicit and reversible. The team owns the product end to end, including architecture, releases, user-facing behavior, and the health of the open-source project.
• We invest heavily in developer productivity. You can use modern AI coding assistants as part of your daily workflow (your choice of tools, within security guidelines), backed by a company-funded usage budget so you can iterate quickly without unnecessary friction. We encourage pragmatic AI-assisted development: faster prototyping, test generation, refactors, documentation, and incident follow-ups—always paired with strong code review and quality standards. You’ll also have access to frontier models (e.g., GPT-Codex 5/3, Claude Opus 4.6, Gemini 3 Pro).

Requirements

• Strong experience building production software in Go, or another language with good support for concurrency and parallelism
• Experience working on larger or long-lived codebases
• The ability to work independently on scoped problems and deliver them to completion
• Clear technical communication skills, especially in code reviews and design discussions
• A good understanding of internet protocols such as HTTP, gRPC, and WebSockets, with some familiarity with lower-level networking concepts
• Experience with modern development practices, including testing, code review, and iterative development.
• Bonus Points For:
• Contributing to or maintaining open-source projects
• Prior experience using k6 in production, or contributing to the k6 project or ecosystem
• Performance, reliability, or network testing and optimization
• Distributed systems or cloud-based services
• JavaScript and/or TypeScript
• Backend systems for web or mobile applications
• Tools and platforms such as Docker, AWS, microservices architectures, and observability tools like Grafana or APM systems

Tech Stack

• AWS
• Cloud
• Distributed Systems
• Docker
• Grafana
• GRPC
• JavaScript
• Microservices
• TypeScript
• Go

Benefits

• 100% Remote, Global Culture
• Scaling Organization – Tackle meaningful work in a high-growth, ever-evolving environment.
• Transparent Communication – Expect open decision-making and regular company-wide updates.
• Innovation-Driven – Autonomy and support to ship great work and try new things.
• Open Source Roots – Built on community-driven values that shape how we work.
• Empowered Teams – High trust, low ego culture that values outcomes over optics.
• Career Growth Pathways – Defined opportunities to grow and develop your career.
• Approachable Leadership – Transparent execs who are involved, visible, and human.
• Passionate People – Join a team of smart, supportive folks who care deeply about what they do.
• In-Person onboarding
• We want you to thrive from day 1 with your fellow new ‘Grafanistas’ to learn all about what we do and how we do it.
• Balance is Key
• We operate a global annual leave policy of 30 days per annum. 3 days of your annual leave entitlement are reserved for Grafana Shutdown Days to allow the team to really disconnect. *We will comply with local legislation where applicable.