Senior Software Engineer - k6 Core (Remote, Spain)

Sorry, this job was removed at 06:01 p.m. (CST) on Tuesday, Apr 22, 2025
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Hiring Remotely in Spain
Remote
Software
Grafana Labs creates leading open-source tools for visualizing operational data, with 1000+ employees in 20+ countries.
The Role

About k6

At k6, we build next-generation reliability testing tools for developers and DevOps engineers. 

We are pushing forward the state-of-the-art in our industry, creating open-source tools that have great developer experience and enable engineers to build reliable systems. k6 is an open-source tool that we built to reinvent the engineering principles around performance testing and enable engineers to build systems that scale.

About the role

You will be one of five developers and maintainers of k6, a modern open-source tool for performance testing, written in Go. k6 was released publicly in early 2017 and has already received over 26,800 stars on Github and has an active community of users and contributors.

You will have a lot of influence on the project roadmap and will work with a high degree of autonomy, building and maintaining the tool.

Your responsibilities will be to both write code, extend the functionality of k6, maintain the code base, interface with the user community (i.e. review patches) and potentially evangelize the tool. Your main, long-term goal will be to create the best possible tool and to get as many people as possible to use it.

You may also be involved with the k6 cloud integration, a SaaS service built on top of k6. Specifically, the parts of the cloud service written in Go, that orchestrates a distributed k6 test across 17 data centers around the world.

Due to our small teams and fast development pace, you will have a substantial and immediate impact on how the end product is architected, developed, and how the engineering team operates. Most importantly, you will work with competent colleagues and will be able to expand your knowledge and skills in different directions.

Required skills

  • We are looking for a person combining very strong programming skills with experience in contributing to open-source projects.
  • Have a strong programming background and experience developing applications in Go (or another language with high-concurrency/parallelism)  
  • Good technical communication skills
  • Understand internet protocols well, primarily, HTTP, gRPC, WebSockets, but also preferably HTTP/2, SPDY, QUIC, IP and TCP
  • Are familiar with modern development processes and practices. Preferably having recent experience developing large scale applications

It is great if you also

  • Have worked in open source projects, either as a heavy contributor or, even better, as maintainer for projects with multiple contributors
  • Have experience working with web performance, testing & optimization
  • Have experience working with network performance, testing & optimization
  • Have experience working with Python, JavaScript and/or TypeScript
  • Know about things like Docker, AWS, microservices architecture, Grafana/APM tools

In Spain, the Base compensation range for this role is EUR 80,571  -  EUR 96,685.  Actual compensation may vary based on level, experience, and skillset as assessed in the interview process. Benefits include equity, bonus (if applicable) and other benefits listed here.

*Compensation ranges are country-specific. If you are applying for this role from a different location than listed above, your recruiter will discuss your specific market’s defined pay range & benefits at the beginning of the process.

 

About Grafana Labs: There are more than 20M users of Grafana, the open source visualization tool, around the globe, monitoring everything from beehives to climate change in the Alps. The instantly recognizable dashboards have been spotted everywhere from a NASA launch and Minecraft HQ to Wimbledon and the Tour de France. Grafana Labs also helps more than 3,000 companies -- including Bloomberg, JPMorgan Chase, and eBay -- manage their observability strategies with the Grafana LGTM Stack, which can be run fully managed with Grafana Cloud or self-managed with the Grafana Enterprise Stack, both featuring scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo).

 

Benefits: For more information about the perks and benefits of working at Grafana, please check out our careers page.

 

Equal Opportunity Employer: At Grafana Labs we’re building a company where a diverse mix of talented people want to come, stay, and do their best work. We know that our company runs on the hard work and the dedication of our passionate and creative employees. If you're excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways.

 

We will recruit, train, compensate and promote regardless of race, religion, color, national origin, gender, disability, age, veteran status, and all the other fascinating characteristics that make us different and unique. We believe that equality and diversity builds a strong organization and we’re working hard to make sure that’s the foundation of our organization as we grow.

 

For information about how your personal data is used once you’ve applied to a job, check out our privacy policy. 

 

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The Company
HQ: New York, New York
1,300 Employees
Year Founded: 2014

What We Do

Grafana Labs provides an open and composable monitoring and observability stack built around Grafana, the leading open source technology for dashboards and visualization. There are more than 5,000 Grafana Labs customers, including Bloomberg, Citigroup, Dell Technologies, Salesforce, and TomTom, and more than 20 million users of Grafana around the world. Grafana Labs helps companies manage their observability strategies with the LGTM Stack, which can be run fully managed with Grafana Cloud or self-managed with the Grafana Enterprise offerings, both featuring scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo) as well as extensive enterprise data source plugins, dashboard management, alerting, reporting, and security.

Why Work With Us

Clear communication is vital in a remote-first company. We hold weekly team updates, monthly all-hands calls, co-located offsites, and annual events. We've enhanced hiring, onboarding, and training with a learning management tool and quarterly bootcamps. We offer 30 vacation days plus local holidays, with equal benefits for all employees globally.

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