-
OneSource Consulting

Senior Fullstack JavaScript Engineer

OneSource Consulting
Belgium · Full-time · Mid-Senior

Backend Development:


  • Design, develop, and maintain server-side applications using Node.js and Koa
  • Ensure high performance and responsiveness to requests from the front-end using techniques like cachin
  • Monitor the performance and the availability of the applications


Frontend Development:


  • Build and enhance user interfaces using React and Web Components
  • Collaborate with UI/UX designers to implement design systems and Ul libraries.
  • Implement and manage microfrontend architectures to enable scalable and modular front-end solutions.


Cloud and DevOps:


  • Utilize Azure Cloud services and Azure Pipelines for continuous integration and deployment.
  • Work with containerization technologies like Docker and Kubernetes;
  • Experience with Istio is a plus.
  • Familiarity with DNS, certificates, networking and UNIX-systems


Project Management and Leadership:


  • Lead and mentor junior developers, fostering a culture of continuous learning and improvement.
  • Manage project timelines and deliverables, ensuring alignment with business goals.


Platform Engineering:


  • Adopt a platform engineering mindset to enhance scalability and reliability.
  • Create and update SDKs for application teams, focusing on ease of use and being opinionated yet flexible to cover a wide range of use cases.
  • Automate processes and improve system efficiency through innovative solutions:
  • Documentation and Process Improvement
  • Write clear and comprehensive documentation for both technical and non-technical audiences.
  • Review and optimize existing processes to enhance productivity and quality.


Qualifications:


  • Proven experience as a Senior/Lead FullStack JavaScript Developer (10 years with modern frameworks) with a strong
  • Focus on Node.js and Koa for backend and React and Web components for Frontend
  • Familiarity with Azure Cloud and Azure Pipelines is a plus
  • Experience with Kubernetes, Docker, and Istio is highly desirable
  • Experience with OpenTelemetry and Jaeger tracing is a plus
  • Strong project management and leadership skills
  • Experience in a platform engineering environment is advantageous.
  • Ability to write and maintain documentation (documentation as code but also functional documentation)
  • Knowledge of Ul libraries and design systems is a plus

Key Skills

Ranked by relevance

design systems docker react istio cloud continuous integration containerization javascript kubernetes server unix dns
Login to Apply
Posted
Feb 26, 2025
Type
Full-time
Level
Mid-Senior
Location
Brussels Region

Industries

Information Technology & Services

Categories

Finance

Related Jobs

3 roles aligned with this opportunity

View all jobs
View Job Details
Unite
Related

Fullstack Software Engineer (gn)

2026-07-07

Full-time
Not Applicable
Germany
Information Technology & Services
Engineering
View Job Details
FiveSquare
Related

Senior Fullstack Engineer(m/w/d)

2026-07-05

Full-time
Not Applicable
Austria
Information Technology & Services
Engineering
View Job Details
SII Czech Republic
Related

Développeur Back-End PHP (Senior)

2026-07-10

Full-time
Not Applicable
Canada
Information Technology & Services
Engineering