> Markdown version of [/jobs/ext/2723564-java-developer](https://www.wearedevelopers.com/jobs/ext/2723564-java-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Developer - **Company:** Aikido Security - **Location:** Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Automation of Tests, Unit Testing, Asynchronous Programming - **Published:** September 5, 2026 - **Apply:** https://startup.jobs/java-developer-homepage-193-7139443 ## About the Role * Really comfortable in a very entrepreneurial environment * Can think along with architectural and impactful decisions * Willing to learn new languages when the product requires it * Comfortable researching and tackling hard problems and algorithms (eg parsing with ASTs) * Willing to experiment (and also willing to perhaps throw away some code) * Medior to Senior: + We are going fast and need experienced people that can hit the ground running with us. + You need to be comfortable with the above mentioned languages and tech-stack. + No stranger to implementing automated testing platforms and unit tests * Fluent in English * Candidates must be located in or able to work within CEST timezone. ## Description Security tools haven't kept up with how software is built today. They interrupt teams, slow releases, and turn security into a bottleneck instead of a capability. We built Aikido to change that. Aikido builds developer-first security products that reduce real risk without getting in the way of shipping software. We focus on what actually matters and automate the rest. We're taking on legacy security tools teams have been stuck with, and we're winning. If you want to help us take market share and build products developers actually enjoy using, you're in the right place. Founded in 2022 by third-time founders, Aikido has $85M in the bank and a long runway ahead. We're building toward self-securing software. Join an all-star team. Take real ownership. Push boundaries. Build things that matter. As a Java developer, you'll be working closely with the Aikido team., * Write modular, testable, and efficient code using Java (and other languages) * Design and implement high-availability applications * Discover, plan, write, document and maintain new features * Understand the fundamental design principles behind a scalable application * Understand the nature of asynchronous programming and its quirks and workarounds * Optimize the product code for speed where required, * Short decision lines. Big ownership. Shape the projects that matter and ship fast. * Grow as fast as we do. Take on more, own more, and carve out your own path. * Top-tier tech pay and equity. * High trust, strong values, zero corporate BS. * Flexibility in working hours. * A company that sticks to its values in an open and informal atmosphere. ## Related Videos - [Are you still programming unit tests or already generating?](https://www.wearedevelopers.com/videos/722-are-you-still-programming-unit-tests-or-already-generating) - [Agile work at CARIAD – Creating a customer web application for controlling the vehicle ](https://www.wearedevelopers.com/videos/200-agile-work-at-cariad-creating-a-customer-web-application-for-controlling-the-vehicle) - [How to add test automation to your project: The good, the bad, and the ugly](https://www.wearedevelopers.com/videos/1668-how-to-add-test-automation-to-your-project-the-good-the-bad-and-the-ugly) - [Building software that scales with Typescript](https://www.wearedevelopers.com/videos/415-building-software-that-scales-with-typescript) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [How will artificial intelligence change the future of software testing?](https://www.wearedevelopers.com/videos/85-how-will-artificial-intelligence-change-the-future-of-software-testing) ## Related Articles - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [The Netherlands – Europe’s powerhouse for software development?](https://www.wearedevelopers.com/magazine/31-the-netherlands-europe-s-powerhouse-for-software-development) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam)