Medior Fullstack Developer

Nightborn; Brussel; On-site; EUR 55,000 - 85,000; Full time

Benefits offered by this job

Career growth

Mentorship culture

Continuous training

Job summary

Nightborn in Belgium is seeking a Medior Developer who will be a pillar of the team, responsible for technical execution and mentoring junior developers, contributing to client projects from conception to architecture.

You will drive code quality, share knowledge, and help shape a path toward Tech Lead, with a culture of continuous training and collaboration.

Qualifications

• 3 to 5 years of relevant professional experience.
• Proficiency with React, TypeScript, NodeJS and GraphQL.
• Willingness to learn and master new stacks.
• Strong teamwork and clear communication.

Responsibilities

• Contribute to client projects across the full lifecycle from conception to architecture.
• Improve code quality and implement best practices within the team.
• Provide technical advice, debugging assistance, and conduct code reviews.
• Mentor and support junior developers in their learning and growth.

Skills

Mentoring

Code reviews

Team leadership

Communication

Tools

JavaScript

TypeScript

React

Node.js

GraphQL

Job description

Nightborn is a **dedicated design and development team** that helps companies ship critical products. Not contractors, not consultants, but true product partners.### Technical stack### Your key responsibilitiesAs a Medior Developer, you will be a pillar of the team, responsible for technical execution and developing junior talent:* Client Projects: You actively contribute to the entire project lifecycle (from conception to complete architecture) for our clients.* Code Quality: You take the initiative to improve code quality within the team and implement best practices.* Junior Mentor/Coach: → **Provide Technical Advice**, Debugging assistance, and conduct thorough Code Reviews. → **Actively train and support** junior developers in their learning and growth.### The profile we are looking forWe are seeking someone who:* Has successful prior experience supporting and mentoring junior developers.* Is ready to commit to becoming a Tech Lead at Nightborn and eventually leading a team.* Wants to have a significant impact on projects and on the team's overall technical expertise.* Has solid teamwork experience, communicates clearly, and loves sharing knowledge.### What we offer* Career Growth: A clear trajectory toward a Tech Lead/Mentor position. Impact: Varied and challenging projects where your technical decisions truly matter.* Culture: Continuous training, mentorship, and a close-knit, supportive team.### ContactYou can send your resume at [e-mail] or you can contact directly on Linkedin* Core Stack: JavaScript/TypeScript, React, Node.js.* Required Profile: 3 to 5 years of relevant professional experience and a proven proficiency with one of the following stack: React, Typescript, NodeJS, GraphQL.* Adaptability: Willingness to learn and master new stacks to meet the demands of future client projects.