TheHappyRecruiter (THR) is recruiting in partnership with one of its Belgian partners for a fast-growing technology startup active in the fintech ecosystem.
Are you passionate about development and motivated by challenges? Do you enjoy the digital world, the tech industry, and a startup environment? This opportunity is for you.
About the company
Founded two years ago, this startup aims to become the European leader in financial software integrations by 2027.
Joining the team means taking part in building the foundations of an ambitious, high-impact project.
You will work closely with one of the co-founders, and your contributions will have a direct impact on the product and the company's growth. Depending on your skills and strategic priorities, you will be involved in several key projects.
Your mission
As a Backend Developer, you will play a key role in the development of software integrations for companies across Europe.
You will contribute to the design, development, and continuous improvement of connectors and APIs enabling seamless integrations with financial tools. You will operate in a dynamic startup environment with real ownership and responsibilities.
Your responsibilities
* Understand and master the existing technical architecture and components
* Develop and document connectors for accounting, invoicing, cash register, and e-commerce solutions
* Build, extend, and maintain unified APIs and integrations
* Data modeling
* Design and implement scalable and highly available backend architectures
* Potential evolution towards a Team Lead role
Profile sought
* Degree in Computer Science or equivalent practical experience
* Minimum
3 years of backend development experience
* Strong knowledge of
Python
;
SQL
and
JavaScript
are a plus
* Experience with databases (PostgreSQL, MySQL) and tools such as Docker
* Strong interest in
business and financial logic
* Analytical, structured, and quality-driven mindset
* Curious, proactive, and eager to learn
* Startup-oriented personality: adaptable, hands-on, and comfortable in fast-paced environments
* Languages:
French and English required
;
Dutch
is a plus
What They Offer
* Close collaboration with and coaching from the
CTO
* Strong learning curve with exposure to multiple technologies
* Experience in a young, fast-growing startup with a collaborative culture
* Flexible working hours and hybrid work model
* Competitive compensation package (salary, meal vouchers, eco-vouchers, mobility budget, flexible vacation days, etc.)
* Potential access to
equity
in a future funding round
* Must have a valid work permit to work in Belgium (no sponsorship)
Location
: South of Brussels
Contract
: Permanent
On-site presence
: Minimum 3 days per week
Freelancers
: Not open
If you are interested please apply directly through our website or contact Géraldine Spies for more information.