Let’s shape the future of finance - together
At Isabel, we believe that real innovation happens when people and ideas connect
That’s why we’re building more than technology, we’re building an ecosystem.
One where every voice counts, and where your work can truly make a difference.
We’re looking for curious minds and collaborative builders. People who believe success means growing together, learning from each other, and challenging the status quo.
If that sounds like you, keep reading.
What you’ll do
Develop software products that meet defined functional and non-functional requirements, proactively clarifying ambiguities when specifications are incomplete or evolving.
Design or contribute to pragmatic technical solutions aligned with the innovation objectives of future products, balancing speed, quality, and sustainability.
Assess and compare off-the-shelf solutions with in-house development options to identify the most effective and efficient approach.
Apply industry standards and best practices across software development, integration, and delivery.
Actively participate in, and when required lead, the investigation and resolution of problems and incidents through to final resolution.
Ensure the quality, performance, and sustainable evolution of applications in both the short and long term.
Drive continuous improvement to ensure software remains robust, maintainable, and adaptable over time.
What makes you a great fit
The role requires comfort with ambiguity and the ability to adapt quickly to changing needs, requirements, and technologies. Continuous learning, adaptability, and ongoing improvement are core to how the team operates and how success in this role is defined.
You’ll thrive in this role if you:
Must Have Expertise
Ruby – Must have solid experience with Ruby & Ruby on Rails, Active Record, Rspec or Minitest, Sidekiq, ...
Linux – Must have a significant proven experience with the Linux CLI.
Version Control Systems – Must have solid experience using git, CI/CD pipelines and conducting merge reviews.
Full Stack Development – Must have solid experience using html, CSS, js with experience with at least one framework.
Database solid experience with SQL and ORM like ActiveRecord.
REST API - Solid experience designing and using REST APIs, webhooks, swagger, JSON.
Software Development Experience - ability to demonstrate practical experience as an application software developer; ability to understand and translate business needs into application solutions.
Software Life Cycle - experience with the lifecycle used in a development organization and solid understanding of software and release delivery and configuration/change management.
AWS services Experience with EC2, ECS Fargate, Api Gateway, Cognito, Route53, ...
Other expertise
Terraform and, or OpenTofu.
Security Principles: Encryption, OpenID, OAuth, JWT, Token base authentication, HTTPS.
Monitoring & Error tracking tools such as AWS Cloudwatch, Sentry.
Docker and, or OCI images.
JSON API, SOAP.
no code platforms such as make.com.
Nix and, or NixOS.
Tech we use
Ruby on Rails - Elixir
Why join us
At Isabel, we offer more than a job, we offer a place to grow, contribute, and thrive.
A human-sized Belgian company (250 people) where your ideas and impact matter
50% hybrid work, flexible hours, and autonomy to manage your time
Coaching, training, and tailored development paths for every career stage
A flat, collaborative structure with real ownership and cross-functional work
Competitive rewards: Flex Income Plan, annual bonus, insurance, meal vouchers
A strong engagement culture and inclusive mindset
Easy mobility options: our MOBI strategy supports flexible, low-footprint commuting, whether by bike, public transport, or electric car
Professional gatherings that encourage collaboration and networking, as well as fun and purposeful activities led by our BeFun team
A certified Top Employer with 30 years of tech leadership and ambition
Ready to join us?
Your voice, your vision, and your impact all have a place here.
Let’s shape smarter solutions and a stronger digital economy. Together.
Isabel connects and simplifies the administrative and financial processes of companies, accounting agencies and banks and ensures the smooth and reliable exchange of documents, payments and identifications and automates access to them. The products - Isabel 6 (multi-bank payment platform), Ponto (open banking), Kube (verified corporate data) and IntelliSuite (fraud monitoring) - enable seamless, secure and reliable data and money flows. Trusted by more than 50,000 companies to access a network of more than 2,000 banks, Isabel processes more than 2,300 billion euros annually and the company will celebrate its 30th anniversary in 2025.
At the heart of the Isabel brand lies a distinctive commitment to unify the banking sector, software providers and our customers to build community-powered banking solutions. This Belgian regulated company, headquartered in Brussels and acting under the supervision of the National Bank of Belgium, focuses primarily on the Benelux market. At Isabel, we want to be the cornerstone of trust in an era defined by rapid technological advancement and, as such, contribute to a stronger, more efficient and secure digital economy.
