Senior Developer Consultant

Keystone Solutions

Brussel Hoofdstad

On-site

EUR 70,000 - 90,000

Full time

3 days ago

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Job summary

Keystone Solutions is seeking a Senior Developer to join a consultancy mission at a client site in Belgium. You will contribute to the development of internal applications to meet the needs of the agency and its employees.

You will work with Java, JavaScript/React, NodeJS, and Spring Boot, and participate in analyses, development, deployment, and ongoing support. A strong Agile mindset and English proficiency are required.

Qualifications

Three languages/tech stacks: JavaScript/TypeScript with React, NodeJS, or Java.
Good knowledge of English and passive knowledge of a second language.
Experience with Agile/Scrum methodologies.
Familiarity with containers and cloud environments is a plus.

Responsibilities

Participate in technical analyses with business and functional analysts.
Develop software components with the team and ensure quality.
Assist in deployment, maintenance and support across environments.

Skills

Agile

Java

JavaScript

Node.js

React

PostgreSQL

REST

Spring Boot

Tools

Docker

Kubernetes

OpenShift

Job description

Mission Overview

Keystone Solutions is seeking a Senior Developer to join a consultancy mission at a client site. In this role, you will contribute to the development of internal applications to meet the specific needs of the agency and its employees.

Key Responsibilities

Participate in the technical analyses necessary to develop these applications, in tandem with business and functional analysts.
Engage in the actual development of software components with your immediate colleagues in the development team.
Assist in the deployment, maintenance, and support of these applications, closely collaborating with systems, network, and infrastructure engineers, as well as the helpdesk.

Required Experience

Relevant professional experience in the IT field during which you have performed at least the following tasks:

Writing programs
Improving existing applications
Adapting applications based on technical evolutions (hardware and software)
Modifying applications based on regulatory and administrative changes
Ensuring a user-friendly interface for applications
Analyzing and resolving bugs

You have also participated in the following tasks:

Deploying developments in different environments
Adapting the database structure
Enhancing the performance of existing developments
Documenting the developments made

Our Expectations

You have practical development experience in one of the following three languages: JavaScript or TypeScript + React, NodeJS, or Java.
You possess at least a passive knowledge of the second national language and are proficient in English.
You have experience with Agile/Scrum methodology.
You have technical experience in the following areas: containerization tools (Docker, Kubernetes, OpenShift), cloud environments (Azure), operating systems (Windows, Linux), other programming languages, and databases (PostgreSQL).

At Keystone Solutions, we pride ourselves on our consultancy nature, focusing on on-site work and the consultant identity. You will face dynamic projects that offer a diversity of challenges across various client environments. Our commitment to turbo-charged learning ensures that you will have broad learning experiences, and we are dedicated to skyrocketing your ambition and career growth within our framework. Being a 'K-Stone' means bringing our core values to every engagement.

Duration

01/12/2026 - 30/11/2027 12 months (full time)

Skills required