Kotlin / Java Developer
Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on May 27, 2025.
Signicat is a pan-European digital identity company that makes it easy and safe for organisations to know who they are interacting with online. Using our proprietary technology, we help companies and public organisations securely verify the identities of people and businesses, authenticate users, and enable compliant electronic document signing, so their customers can access services and complete online processes with confidence.
Today, Signicat employs over 530 people across 20 offices in 15 European countries. We work with leading banks, fintechs, telcos, public authorities, healthcare providers, and enterprises across retail and mobility to deliver trusted digital identity and onboarding solutions at scale. Joining Signicat means contributing to a mission that has a real impact on how society works and trusting each other in an increasingly digital world.
The Role:
Signicat has an opportunity for a talented Java or Kotlin Developer to join our Authentication Broker team based in Rotterdam.
As part of the team, you will contribute to our own SaaS applications with which we reach millions of end users. Our code is mission-critical for many of our high-profile customers, who use our platform to authenticate the end users of their services. You will learn how to create architectures that are inherently secure, becoming an expert in secure programming.
Key Responsibilities:
Write software that matters! Be part of the team that will enable online authentication for millions of users!
Get training and guidance to become an expert at writing secure software
Analyse functional requirements and turn them into real software
Assist in designing and improving our software architecture
Build and maintain a catalogue of reusable, elegant solution patterns
Build and maintain a library of reusable, elegant software components
Improve standards and guidelines for using these patterns and components
We work agile, so take part in daily stand-ups and discuss safety features with the product owner
Be responsible for the whole lifecycle of our applications including deployments and DevOps
The Environment
Signicat engineering teams operate with a DevOps mindset of “you build it, you run it”, giving our Engineers full end-to-end ownership and autonomy. As such the Developer position will need someone who will accept full responsibility for their work. The Authentication Broker Team follows Scrum / Kanban methodologies, working with cutting-edge technology and principles. You'll need to be willing to learn / work in Kotlin - all our code is in Kotlin!
Requirements
3+ years of experience using Kotlin and/or Java 8+ to develop web applications
You enjoy explaining things, discussions, and knowledge sharing
Experience using CI/CD, version control, and unit testing
Knowledge or experience of one or more of the following:
Spring Boot, REST, Docker, Kubernetes, microservices, GitLab, PostgreSQL, OIDC, SAML, QA, AWS/GCP, Angular, Linux, SCRUM/Kanban
Bachelor's degree in Computer Science or equivalent experience
What we offer:
Your tech, your way - choose the tech gear that aligns with your comfort and meets your preferences
Hybrid work style - collaborate with the team in-office several days a week and embrace the flexible work model
Work-life balance - enjoy an extra 5 paid days off annually, and we will celebrate your work anniversaries with additional days off to recognise and reward your milestones.
Rotterdam: Modern workplace - a cosy office located in the heart of Rotterdam near the central station, with daily lunches provided to keep you fueled throughout the day and so much more!
Continuous growth - quarterly development talks, a dedicated time during working hours each week for training and development, unlimited access to Udemy courses, defined career paths and internal mentorship opportunities
Customised onboarding - we will prepare an Onboarding Plan to ensure an easy and smooth beginning
Be part of an international team - the opportunity to work from any other Signicat office for 2 months per year and 3 weeks per year from any European country
Give back to the community - option to use 16 hours of paid volunteer time each year to support a charity or cause you are passionate about
Empowering feedback culture - by using employee engagement tools, we ensure that every voice is heard, empowering us to grow together