Senior Developer Consultant

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.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

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

Skills required:

• Agile - Level: Confirmed - Most recent: 1 to 3 years ago
• Docker - Level: Junior - Most recent: Any time
• Java - Level: Confirmed - Most recent: 1 to 3 years ago
• Javascript - Level: Confirmed - Most recent: This year
• Kubernetes - Level: Junior - Most recent: Any time
• Node.js - Level: Confirmed - Most recent: Any time
• PostgreSQL - Level: Confirmed - Most recent: Any time
• React - Level: Confirmed - Most recent: Any time
• Rest - Level: Confirmed - Most recent: 1 to 3 years ago
• Spring Boot - Level: Confirmed - Most recent: 1 to 3 years ago

Language requirements:

Dutch
Level Active knowledge
English
Level Active knowledge
French
Level Active knowledge