2,387+ Python Developer Fast Api Fintech Project Jobs in Brussels, Belgium — Local Employers Hiring June 2026

Professional job seekers finding Belgium jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Python Developer (Fast API / FinTech Project)

We are seeking a Python Developer experienced with Fast API to join our backend team for a FinTech-related project. You’ll be responsible for developing, maintaining, and optimizing APIs that power a mobile financial application.Responsibilitie ...

Python Developer (Fast API / FinTech Project)

We are seeking a Python Developer experienced with Fast API to join our backend team for a FinTech-related project. You’ll be responsible for developing, maintaining, and optimizing APIs that power a mobile financial application.Responsibilitie ...

Python Developer Brussels

WE DEVELOP PEOPLE WHO DEVELOP TECHNOLOGY And we want to develop you!At Growin people always come first.Why?Because we believe happy, talented people are the ones who can change the world: one code line at a time.We have projects waiting for you in Brussels , where y ...

Senior.NET Freelance

Job descriptionTaux journalier (TJM): 650 Notre client dans le secteur Énergie et ressources naturelles recherche un Senior .NET Developer H/F Descriptif de la mission:Job description – Senior .NET Developer – Power IS Feature TeamsContext and objectiveAs a Senior .NET ...

Python Developer I Belgium

Job DescriptionWe are looking for a Backend Engineer with strong knowledge of Python. In this role, you will contribute to the development and evolution of a large-scale, business-critical application, working closely with business stakeholders to translate complex contractual requirements into robu ...

Python Developer I Belgium

Company DescriptionTalan is an international consulting group specializing in transformation and innovation through technology. Present across five continents and in 21 countries, our Great Place to Work–certified group brings together more than 7,000 consultants. We support major organiz ...

Python Developer (AI/ML)

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Python Developer (AI/ML) to join our UniQue team.What will you be doing in this role?Design, develop, and deploy end-to-end AI/ML solutions in operational enviro ...

Project Developer

Notre client est un développeur ambitieux et actif dans la région de Bruxelles et en Flandres. Afin d'étoffer leur département développement, ils recherchent un Project developer pour piloter les différentes étapes des projets depuis le transfert foncier jusqu'à l'obtention des permis de ...

Project developer

Nous sommes à la recherche d'un Project developer en immobilier pour un promoteur de renom à Bruxelles. Le Développeur de projet est chargé de la coordination, du suivi et du développement de nouveaux projets de construction importants. Il doit veiller à la qualité, au planning et au budget ...

Senior Software Developer

Job description As a Senior Software Developer with strong back-end capabilities and a good understanding of front-end development, you will be involved in transformation projects at our clients. You will execute project assignments in software development, modelling and digital transform ...

.NET/Python Software Developer | Energy Sector

WHO WE ARE Etinars is a values-focused company with multi-year experience, specialised in the recruitment of professionals for niche markets, managing the full life-cycle of specialist and executive-level hires. At Etinars, we genuinely care about who you are and what you need. We place great emphasi ...

Senior.NET/Python Developer Architect | Energy Sector

WHO WE ARE Etinars is a values-focused company with multi-year experience, specialised in the recruitment of professionals for niche markets, managing the full life-cycle of specialist and executive-level hires. At Etinars, we genuinely care about who you are and what you need. We place great emphasi ...

Senior Application Developer – Microservices & Kubernetes Environment: JP054181

Senior Application Developer – Microservices & Kubernetes Environment We are looking for a Senior Application Developer to support a major enterprise modernization program focused on transforming a legacy platform into a scalable microservices architecture running on Kubernetes.</p ...

Ingénieur Logiciel

Le client est un acteur majeur dans le domaine de la fintech et du secteur des assurances à Bruxelles. En tant qu'Analyste/Développeur vous serez responsable du développement et du support d'application et d'outils divers. De plus, vous aiderez vos collègues dans leurs tâches quotidiennes à l'aid ...

Junior GIS Consultant / Developer BOS000463

Junior GIS Consultant / Developer Location: Flanders, Belgium Start Date: June 2026 End Date: December 2026 Employment Type: Full-time (Hybrid – on-site + remote) Contract Type: Frame ...

Account Executive

At Chift, we’re building the future of financial integrations for SaaS.Founded in 2022, Chift is a fast-growing startup backed by strong investors, already working with hundreds of B2B SaaS, including public companies and many unicorns 🦄We provide an integration platform ...

Senior UX Researcher (100% Remote Worldwide)

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reser ...

Senior UX Researcher (100% Remote Worldwide)

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reser ...

.NET Integration Developer – Azure Platform Job ID: JP054227

.NET Integration Developer – Azure Platform We are looking for an experienced .NET Integration Developer to join a platform team supporting large-scale Azure cloud transformation initiatives within a complex IT environment. You will contribute to the design, development, and maintenance of scalable i ...

Senior.NET & Web Development Expert (GIS) LAV000634

Senior .NET & Web Development Expert (GIS) Location: Brussels, BelgiumWork Model: HybridContract Duration: June 2026 – January 2027Employment Type: Contract (Full-Time)Language Requirement: ...

Senior Functional Analyst – Microservices Transformation Program: JP054179

Senior Functional Analyst – Microservices Transformation Program (Hybrid – Brussels) We are looking for an experienced Senior Functional Analyst to support a large-scale modernization program focused on transforming a legacy monolithic platform into a modern API-first and event-driven ...

.NET & Angular Developer (ML) – Technical Assistance GLB LAV000631

.NET & Angular Developer (ML) – Technical Assistance GLB Location: Schaarbeek, Belgium (Hybrid) Mode of Work / Contract: Freelance / Contract (Public Sector Assignment) Start Date: 08/06/2026 Application Deadline: 2 ...

Fullstack Developer Full Time | Belgium | Hybrid

🚀 Fullstack Developer - Full-Time | Belgium | HybridAre you a passionate Fullstack Developer with strong backend instincts and a desire to build high-impact digital products in a fast-growing tech environment?An innovative Belgian InsurTech startup, scaling rapidly in Brusse ...

Application developer (Java/Angular) French Speaker

About the client:The client is a Belgian federal public institution responsible for shaping and enforcing economic policy, market regulation, and consumer protection. It plays a central role in ensuring fair competition, transparency, and trust between businesses and consumers at a nation ...

Junior.NET Developer LAV000637

Junior .NET Developer Location: Brussels, Belgium (Hybrid) About the Opportunity We are looking for a motivated Junior .NET Developer to join a dynamic development team working on enterprise applications that support critical business processes within the public sect ...

Python Software Engineer

YOUR TASKS: You define technical specificationsYou develop and test new innovative toolsYou maintain and support Python libraries with other developersYou coach users through ad-hoc training sessions and code reviewsYou provide a t ...

Senior Business Developer / Strategist – Digital Transformation Program JP054180

Senior Business Developer / Strategist – Digital Transformation Program (Remote) We are looking for a Senior Business Developer / Strategist to support a major enterprise modernization program focused on transforming a legacy monolithic platform into a modern microservices and API-firs ...

Full Stack Developer / Technical Lead (.NET & Angular) – Medior LAV000635

Full Stack Developer / Technical Lead (.NET & Angular) – Medior Location: Brussels, Belgium (Hybrid) About the Role We are seeking a talented Full Stack Developer / Technical Lead to join a dynamic IT Development team supporting critical digital transformation in ...

[FBO] Ingénieur Infrastructure Iops Freelance

Job descriptionMission contextAs part of an Agile structure, iOps is integrated within the APS domain business support that is linked to the tribe. He/she participates in the team rituals. He/she is the key player in the provision of the product and the stability of ...

VIP Support Specialist

Viva.com is Europe’s first acquirer powering merchant payment acceptance across 24 countries and more than 1,165 devices. With an ECB-approved banking license and a presence in 24 European markets, Viva.com’s Tap on Any Device technology for in-store payments, Smart Checkout ...

VIP Support Specialist

is Europe’s first acquirer powering merchant payment acceptance across 24 countries and more than 1,165 devices. With an ECB-approved banking license and a presence in 24 European markets, ’s Tap on Any Device technology for in-store payments, Smart Checkout payment gateway for online payments, ...

Développeur Python Senior – Énergie & Commodities Freelance

Description du posteNotre client est un acteur majeur du secteur énergétique européen. Dans le cadre du renforcement de ses équipes techniques, il recherche un Développeur Python Senior pour intervenir sur des projets de modélisation, pricing et analyse de données dans un environ ...

Senior Product Marketing Manager, Open VSX

The Eclipse Foundation is one of the world’s largest open source software foundations.With over 400 open source projects and collaborations including Open VSX, Adoptium, Jakarta EE, Eclipse IDE, and OpenHW, we serve a global community of millions of developers and more than 300 member organiz ...

Full Stack Developer Node/React Front End Oriented Freelance

Job description You can translate complex AI concepts into creative digital solutions for our clients. You have 4+ years of experience in development, with a significant focus on modern architecture. < ...

Rust Back end Developer Decathlon Belgium

Gepubliceerd op 11/9/2025 Jobomschrijving The Marketplace developer team is looking for a Rust Back-end Developer to join our growing team.You'll play a key role in our ambition to become a global sports platform. Working directly with the business, you'll ...

Medior Developer – Technical Analist / Techlead JP053805

Job Title: Senior Developer – Technical Analyst & Tech Lead Location: Zwijnaarde (9052), Belgium – Hybrid Employment Type: Full-Time Experience Level: Senior About the Role We ...

Data Engineer Retail Brussels

Support post‑acquisition integrations, including data migration, mapping, validation, and system alignmentContribute to the implementation and continuous development of the ERP platform Design andmaintainscalable data architectures and models supporting finance andbusinessana ...

Data Engineer Retail Brussels

Support post‑acquisition integrations, including data migration, mapping, validation, and system alignmentContribute to the implementation and continuous development of the ERP platform Design andmaintainscalable data architectures and models supporting finance andbusinessana ...

Work & Travel in Portugal – Remote baan met accommodatie!

Breng je zomer door in Lissabon — Werk, reis & verhuis naar Portugal Op zoek naar een frisse start deze zomer? Wil je in het buitenland wonen, mensen van over de hele wereld ontmoeten en internationale werkervaring opdoen? Dit is jouw kans om naar Lissabon te v ...

Senior AI Engineer

Are you passionate about #AI or #cybersecurity? Do you love working with high profile teams with a sure taste for challenge and variety? You dream to join a fast-growing company with start-up mentality? Eager to learn continuously? Join Proximus Ada! Within Proximus’ centre of excellence for AI and Cybersecur ...

Data Engineer Databricks/Dataiku

Mission. Responsibilities Design, develop and maintain scalable data pipelines on the Databricks platformManage data ingestion processes from various sources into the Databricks environment.Implement and optimize ETL (Extract, Transform, Load) proc ...

Blockchain Developer

ABOUT USWe’re the world’s leading provider of secure financial messaging services, headquartered in Belgium. We are the way the world moves value – across borders, through cities and overseas. No other organisation can address the scale, precision, pace and trust that this demands, and we’re pro ...

Senior Full Stack.NET Developer Job ID: JP054185

Senior Full-Stack .NET Developer  Overview We are looking for an experienced Senior Full-Stack .NET Developer to join a Scrum development team of five members for a short-term project focused on enhancing a social services application. The mission involves developing ne ...

Senior Java Developer (Contract)

Senior Java Developer (Contract) Location: Brussels, Belgium Work Model: Hybrid (Onsite presence required on Mondays and Thursdays) Contract Duration: June 2026 – January 2027 Employment Type: Contract / Freelance <s ...

Frontend Developer

/ Developer Bij in Brussel WerkomgevingDe dienst NTSU (National Technical & Tactical Support Unit) maakt deel uit van de SpecialeEenheden van de Federale Gerechtelijke Politie. Deze dienst is voornamelijk belast met de voorbereiding enuitvoering ...

P1 –.NET Developer (Medior) VLM000151

P1 – .NET Developer (Medior) Brussels, BelgiumContract: 1 June 2026 – 1 June 2027 Full-time (100%) | ±1453 hours Apply before: 20 April 2026 About the Role The Flemish Land Management Agency is looking for a Medior .NET Developer< ...

Senior.NET Integration Developer

About the ClientThe client is a Belgian public-sector organization responsible for managing social security services for self-employed professionals at a national level. It plays a critical role in ensuring the proper administration of benefits, contri ...

Python Software Engineer AI

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo</st ...

Infrastructure Engineer Permanent

Job descriptionMissionAs part of an Agile organization, the Infrastructure Engineer (iOps) operates within the APS Business Support domain linked to the Risk & Support Tribe. The role’s main mission is to ensure the stability, security, and performance of technical environments (productio ...

Full Stack Developer (FSD) with expertise in digital distributed infrastructures

EU citizens applicants with European passport only. This position is open only for freelancing (Range per hour between 47 Euro to 52 Euro).Join youdidIT@European Commission, an innovative IT services and consulting company. As a Full Stack Developer, you'll tackle exciting challeng ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Python Developer Fast Api Fintech Project Jobs in Brussels Job Search Guide, Trends and Insights