HubMub
-
STATION F

SOFTWARE ENGINEER

STATION F
Belgium · Full-time · Entry
À propos

At Sonaar, our mission is to make public tenders as straightforward, fair, and efficient as any other B2B relationship. With a dedicated team of seven and a growing community of 100+ active users, we’re gearing up for an exciting phase of growth in 2026 and we’re seeking passionate innovators to join us. We’re still in our early days, which means there’s a real opportunity to shape our product’s evolution, make a meaningful impact, and help transform an entire industry. If you’re ready to challenge conventions and drive tangible change in B2B processes, let’s chat 😏

Descriptif du poste

We are looking for…

As a Full Stack Developer with 3 to 10 years of experience, you’ll bring your expertise in designing reliable backend architectures (using microservices) and creating RESTful APIs (aligned with the OpenAPI specification). You have a solid background in database management, working with both relational (MySQL, PostgreSQL) and document-based (MongoDB) systems, and you’re skilled in ORMs like Prisma, MongooseJS, and SQLAlchemy. You’re comfortable working with TypeScript, React, and Next.js, and have experience with design systems like Chakra UI and Tailwind. Guided by our CTO, you’ll play a pivotal role in building, enhancing, and fine-tuning our platform to make it intuitive and technically robust. Finally, you’re excited about leveraging machine learning and LLM technologies to help us push the boundaries of automation and deliver a smarter, more proactive platform.

Your Missions

  • Participate in all phases of the development lifecycle from planning, implementation, testing, and maintenance
  • Design and develop front-end and back-end features for our platforms using technologies like React, TypeScript, Python, etc.
  • Actively participate in database modeling based on our business needs, following best practices
  • Create and maintain RESTful APIs while defending architectural choices and suggesting improvements when needed
  • Implement and optimize automation algorithms for efficient and extensive data collection to improve our offering
  • Ensure the highest level of security for our applications, implementing rigorous security protocols to safeguard user data and privacy
  • Maintain the efficiency and scalability of our infrastructure using monitoring services
  • Use LLMs to extract insights from public tenders at scale and enhance the accuracy of our data processing pipelines

What We Offer

  • The chance to join an early stage startup and to see it built from the ground up
  • Unlimited growth opportunities, evolving in tandem with the company’s expansion
  • Work that matters, that has a direct impact on the company and its clients/partners
  • An awesome environment rich with opportunities for continuous learning and skill development
  • A competitive compensation with access to a stock option plan
  • Being part of an amazing team that is fully committed and passionate about the project

Profil recherché

This Job Is For You If

  • You have at least a bachelor's degree in computer science or a related field
  • You have 2 to 10 years of full-Stack development experience
  • You are proficient in React with TypeScript or any other front-end frameworks
  • You have a track record in back-end development with technologies like NodeJS (TypeScript), Golang, C#, Java, or other typed programming languages
  • You have a deep understanding of database modeling and the ability to design efficient data models
  • You have experience with implementing LLMs, RAG systems, or agentic workflows, which is considered a strong plus
  • You have strong experience with relational databases (MySQL, Postgres) and No-SQL ones (MongoDB).
  • You are familiar with RESTful APIs and have a good understanding of RESTful vs RPC concepts
  • You already worked with one big Cloud provider (AWS or GCP) and are comfortable with Docker and DevOps tasks
  • You use tools like Cursor, Claude Code, or Warp every day to boost your productivity
  • You are detail-oriented and creative, always looking to improve and innovate
  • You are a Dutch, French, or English speaker
  • You have worked in a startup or scale-up environment

Process de recrutement

Application

To apply, simply send your CV or LinkedIn account link to [email protected].

See you soon 👨🏻 💻

Informations complémentaires

  • Type de contrat : CDI
  • Lieu : Bruxelles
  • Niveau d'études : Bac +3
  • Expérience : > 2 ans
  • Télétravail partiel possible

Key Skills

Ranked by relevance

typescript restful apis react mysql machine learning design systems microservices postgresql python docker devops golang cloud java sql aws gcp ui c
Login to Apply
🇧🇪

Country Guide

Belgium

International hub for EU careers

Posted
Dec 09, 2025
Type
Full-time
Level
Entry
Location
Brussels
Company
STATION F

Industries

Technology Information Internet

Categories

Engineering Information Technology

Related Jobs

3 roles aligned with this opportunity

View all jobs
View Job Details
STATION F
Related

FULL STACK ENGINEERING INTERN

2026-05-14

Volunteer
Not Applicable
France
Technology
Engineering
View Job Details
STATION F
Related

FULL STACK ENGINEERING INTERN

2026-04-30

Volunteer
Not Applicable
France
Technology
Engineering
View Job Details
STATION F
Related

FULLSTACK PRODUCT ENGINEER

2026-05-10

Full-time
Not Applicable
France
Technology
Engineering