About us and this roleKnapsack is the product company behind Knapsack Pro, a developer-tool that helps engineers optimize CI test runs since 2014. We are a small team located in Kraków (Poland). We mostly work remotely, but meet in person for some of the things.This is a technical role, but we are looking for someone who is both excited and experienced in working on a product. We value good code and architecture, but they are always means to an end.Tens of thousands of users rely daily on Knapsack, so you’ll be on the frontline talking with them to ensure their needs are fulfilled.You’ll take ownership and responsibility for what you build. Everybody on the team responds to support tickets and takes part in Pager Duty.We expect you to develop complex projects, from ideation and scoping to execution and maintenance. Again, if you're seeking end-to-end ownership, you might have come to the right place!At Knapsack, it’s not unusual for one person to touch Heroku/AWS, Postgres/Redis, Ruby/Rails, JS/TS, and multiple CIs on the same day. So you should have experience in most and be capable of picking up the rest quickly.We look forward to hearing from you!Our recent projects include:PREDICTRetry-only-FailuresRewrite of the API to support tens of millions of test batches per daySupport for Vitest and PlaywrightCreation and analysis of analytics to evaluate alternative pricing modelsAbout you:Seven or more years of professional experience, mainly as a Product/DevTool Engineer.Proficiency in crafting pragmatic and performant code where it matters and taking smart shortcuts where appropriateTaste in designing public APIs, dev-tools, and User eXperiencesData-driven skills to evaluate multiple alternatives and converge on the most promising solutionExcellent communication in English both in writing and verballyThe right mix of art & science to deliver projects in an experiment-oriented environmentAbility to self-direct and manage complex projectsComfortable in a fast-paced environment with rapidly changing prioritiesPreferably located in Kraków, PolandAgreement details:B2B contract22-26k PLN net / month20 days off / yearPager Duty (compensated)Your ApplicationPlease submit an application with your CV/résumé and a cover letter telling us about yourself, what you can bring to Knapsack, and what made you interested in joining us.Feel free to share whatever feels relevant. We’d really like to get to know you!This is not a requirement, but if you’ve contributed to open-source work of any kind or developed any personal or hobby projects, please include this information along with any public links.
KNAPSACK SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ (Knapsack) is a Kraków-based, small software product company operating in the developer-tools/DevOps sector. Since 2014, it has developed Knapsack Pro, a tool that helps engineering teams optimize continuous-integration test runs. Its products are used daily by tens of thousands of users and are built to operate at substantial scale, including support for tens of millions of test batches per day. The company works largely remotely while maintaining in-person collaboration in Kraków. Its culture emphasizes product thinking, direct user focus, end-to-end ownership, pragmatic engineering, high-quality architecture, experimentation and data-informed decision-making, along with adaptability across a broad modern cloud and software stack.