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Backend Jobs in Belgium

There are 78 open Backend jobs in Belgium on freehire right now. 26 of them were posted recently. The skills employers ask for most often are api, ai and cloud.

Most requested skills

api 56%
ai 42%
cloud 40%
devops 36%
docker 35%
java 35%
sql 35%
ci-cd 31%

How the work is done

Hybrid 15 · 19%
Remote 7 · 9%
Onsite 1 · 1%

Seniority

Senior 22
Junior 2
Lead 2
Intern 1
Staff 1

Who is hiring

1000+ employees 5
501-1000 employees 5
201-500 employees 3
51-200 employees 3
11-50 employees 1

English level

C1 90%
B2 10%

Share of the postings that state a required level (at least 20% of this market do).

78 jobs

Posted Sort

78 jobs Posted Sort

ilias-solutions

Senior Backend Engineer | Java

NewBe an early applicant HybridEuropeFull-timeSenior

A senior Java backend engineer designs and maintains versioned APIs and backend services for defence software deployed in offline, air-gapped NATO environments, and sets coding standards and mentors engineers across the backend chapter. Core stack: Java 17+, Spring Boot/Quarkus, Kafka, PostgreSQL, Docker/Kubernetes/Helm.

Analytics API Api Design Authentication CI/CD +34 skills

Back-end Developer

NewBe an early applicant EuropeFull-time

Back-end developer building and maintaining internal business applications in PHP and SQL at a food/production company in Nieuwpoort: translating business questions into data capture, relational database and ERP/reporting modules (traceability, quality registration, margin reporting) while working directly with non-technical end users.

ERP MySQL PHP SQL

Senior Node.js Back-End Engineer

Open 15d EuropeContractSenior

Senior backend engineer at In The Pocket, a European digital product studio in Belgium, designing and maintaining TypeScript/Node.js backend APIs and AWS cloud infrastructure (Terraform, Docker, Kubernetes) for client projects, while mentoring colleagues and using AI tools in daily development.

AI API Authentication AWS CI/CD +22 skills

Node.js Back-End Engineer

Open 15d EuropeContract

Build and maintain backend APIs in TypeScript and Node.js for a European digital product studio, contributing to AWS cloud infrastructure, Terraform IaC, CI/CD pipelines, and secure coding (OWASP), while working in multidisciplinary client-facing teams and growing toward more ownership.

AI API Authentication AWS CI/CD +21 skills

Senior Python Backend Engineer - Energy Data Pipelines

NewBe an early applicant EuropeSenior

Satellit in Belgium seeks a Senior Python Backend Engineer for a global energy management team: designing backend services for asset onboarding, contracts, and market operations, and building APIs and data pipelines using MQTT, RabbitMQ, PostgreSQL, AWS (RDS, S3, IAM, Lambda, ECS), and Docker.

API AWS Data Ingestion Data Pipelines Docker +9 skills

Back-end Developer PHP/C (In dienst of freelance)

New EuropeFull-time

Back-end developer (employee or freelance) for a Belgian federal police ICT project migrating mainframe data to a modern open architecture. You design, build, test and maintain PHP and C server-side applications, using REST/SOAP web services on Linux Red Hat servers, plus AngularJS/jQuery, Git and DevOps tooling.

AJAX Angular C# DevOps Git +8 skills

Backend Software Developer Python or Java (Freelance possible)

New EuropeFull-timeIntern

Backend developer joining a Belgian SME (EngiFlex) supporting a public mobility organisation in Brussels, building and improving business applications. Day to day: deliver production-ready backend code (APIs, services, data access) in Python or Java on Azure, with CI/CD, automated testing and Git-based teamwork. Freelance engagement possible.

Agile API Azure Azure DevOps CI/CD +16 skills

Aikido Security

Backend Developer (Autofix)

New HybridEurope

🌍 We’re making security suck less for developers. 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…

AI AWS CI/CD DevOps Lambda +5 skills

The Hotels Network

Backend Engineer - Data Acquisition

New RemoteEuropeFull-time

Backend engineer on Lighthouse's Crawler Engineering team building high-performance data-acquisition systems (mostly in Rust) that collect billions of web data points — close to 200M requests/day — including an in-house proxy layer and browser tooling. Stack: Rust, TypeScript/Node.js, Python, Google Cloud, Kubernetes, Prometheus, Grafana.

Agentic AI AI Claude Code Cloud C++ +12 skills

Back-end Developer Java

Back-end Java developer who builds and maintains the core architecture of a payments platform in Belgium: creating robust APIs and integrations with banks and enterprises, tackling retries, concurrency and external system failures, and tuning queries and data models as volume grows.

Community Consulting

Developer .NET senior (backend and Azure)

New EuropeContractSenior

Senior backend developer contracting through Community Consulting in Brussels, building .NET/.NET Core Web APIs and Azure cloud solutions with unit tests, Clean Code, Clean Architecture and SOLID. On-site at the client's office up to five days per week as required.

API Azure Cloud .NET Unit Testing

Ervaren Back-end Developer - interne rol

New EuropeFull-time

Voor een baanbrekende Leuvense tech-speler, die een innovatief Saas-platform heeft ontwikkeld en tevens sterk inzet op de integratie van artificiële intelligentie, zijn we op zoek naar een ervaren back-end developer…

API AWS CI/CD Cloud C# +4 skills

Node.js Backend Developer | BioTech

New EuropeFull-time

Reprenez les fondations d’une plateforme en pleine évolution et construisez une architecture backend robuste en Node.js & TypeScript. Notre partenaire est une entreprise technologique belge en croissance qui…

API Data Modeling Event Driven Architecture GraphQL Laravel +6 skills

Software Backend Engineer

Open 57d Europe

As a Senior Backend Engineer, you will build and maintain AI-powered features and microservices using TypeScript and serverless architectures to enhance sales workflows. You will collaborate in an agile team to integrate LLMs and third-party APIs while focusing on scalable, secure, and high-performance system design.

Agile AI API AWS CI/CD +15 skills

Senior Backend Engineer – Java & AI Platform (m/f/d)

Open 67d HybridEuropeSenior

Senior Backend Engineer building Java/Quarkus REST APIs and reliable multi-step business workflows that connect Sofico's Miles platform to its new Agentic AI platform, integrating Temporal and other enterprise systems. Hybrid role based in Zwijnaarde, Belgium, working alongside AI and workflow engineers.

Agentic AI AI API Automation Claude Code +10 skills

Backend Developer (Python/Django) | EU Institution | Brussels

Open 4d HybridEurope

Joining KEYES means giving purpose to your talent. Are you looking for an environment where technology is not an end in itself, but a lever to build a sustainable future? At KEYES , we are not just looking for…

AI API Authentication AWS Azure +12 skills

Backend Developer JavaScript

New EuropeFull-time

Deze software onderneming geleid door 3 hechte vrienden zoekt een extra developer om hun team te versterken. Op vraag van hun ambitieus klantenbestand ontwikkelen ze vandaag volledig in-house custom made…

CI/CD Docker Express.js NestJS Node.js +3 skills

Senior SAP S/4HANA Backend Developer

Open 33d EuropeSenior

Capgemini is hiring a Senior SAP S/4HANA Backend Developer (Diegem, Belgium, hybrid) to design and deliver robust S/4HANA backend components for client projects. Day to day this means translating functional requirements into technical designs and mentoring colleagues in ABAP, RAP, CDS, OData, and SAP BTP extensions.

ABAP AI Cloud REST SAP +1 skills

SAP Backend Developer

Open 33d Europe

Capgemini in Diegem, Belgium is hiring an SAP Backend Consultant to design and build data integrations and optimize business processes for client organizations, primarily using ABAP, with Java and SAP RAP/CAP/C4 as pluses. The role includes turning business requirements into technical designs and mentoring junior team members.

ABAP AI Backbone.js Java SAP

Backend .Net Developer

As a Backend .NET Developer at Smals, you design, build and maintain reusable .NET (C#/.NET Core) framework components in a 12-person SAFe platform team that makes Azure Cloud usable for other development teams working on Belgian e-government and e-health applications. Core tech: .NET/C#, MS SQL/Oracle, WCF, gRPC, Dapr, NServiceBus messaging, Azure DevOps and Bicep.

Agile Azure Azure DevOps Bicep Cloud +9 skills