Solution Architect / Lead Developer (Senior) - Parking.brussels

Adjugo; Brussel Hoofdstad; Hybrid; EUR 148,000 - 170,000; Full time

Job summary

Parking.brussels is seeking a Senior Solution Architect / Lead Developer to own application, integration, data and security architecture while remaining hands‑on in delivery. You will lead refinement, estimation, technical risk management and engineering standards for a small team in a hybrid Brussels setting.

The role requires 8+ years of software engineering, 3+ years of technical leadership and strong Azure, Java or Python skills.

Qualifications

• 8+ years software engineering experience.
• 3+ years technical leadership.
• Hands‑on live project leadership.
• End‑to‑end production delivery.
• Azure public cloud expertise.
• Hybrid environment working experience.
• Java or Python proficiency.
• Cross‑language code review capability.

Responsibilities

• Own application, integration, data and security architecture; keep designs implementable by a small engineering team.
• Lead delivery refinement, estimates, definition of done, stand‑ups and technical risk management.
• Translate business needs into executable backlogs; protect scope against ignored technical debt and risks.
• Coach medior developers; review designs and code; improve engineering quality without blocking delivery.
• Define engineering standards for Git, branching, CI/CD, automated tests, environments and releases.
• Coordinate client, product, infrastructure and security stakeholders as their technical counterpart.
• Produce architecture artefacts including SADs, ADRs, diagrams and interface contracts; maintain them.
• Identify security, performance, operability, vendor lock‑in and delivery risks; mitigate through production.

Skills

Software engineering

Technical leadership

Live project leadership

End-to-end delivery

Azure cloud

Java or Python

Tools

Azure DevOps

Git

Bicep

OpenTofu

Job description

Dates: 2026-11-03 — 2027-11-02

Arrangements: Full-time, hybrid; on-site in Brussels at least 3 days per week.

Parking.brussels, the Brussels-Capital Region Parking Agency, is modernising its information systems as part of a wider organisational and digital transformation. The agency wants to strengthen internal digital capabilities and better support its business departments. It is building an integrated, secure and sustainable digital environment. This assignment offers direct ownership of how that ambition becomes working software.

The Senior Solution Architect / Lead Developer will own application, integration, data and security architecture while remaining directly involved in delivery. You will lead refinement, estimation, technical risk management and engineering standards for a small development team. You will coach medior developers, review designs and code, and work closely with product, infrastructure, security and client stakeholders. Success is measured by reliable solutions reaching production, not architecture presentations alone.

The mission runs for twelve months, from 3 November 2026 to 3 November 2027, on a full-time hybrid basis in Brussels. The consultant must work on-site at least three days each week. Candidates need extensive engineering and technical leadership experience, cloud expertise, strong DevOps and security practices, and professional English. The assignment is offered through ProUnity, with a published daily rate of €800–€920 excluding VAT and no broker fee.

Top Reasons to Apply

End-to-end technical ownership

Public digital transformation

Coach engineering teams

Responsibilities

Own application, integration, data and security architecture; keep designs implementable by a small engineering team.

Lead delivery refinement, estimates, definition of done, stand‑ups and technical risk management.

Translate business needs into executable backlogs; protect scope against ignored technical debt and risks.

Coach medior developers; review designs and code; improve engineering quality without blocking delivery.

Define engineering standards for Git, branching, CI/CD, automated tests, environments and releases.

Coordinate client, product, infrastructure and security stakeholders as their technical counterpart.

Produce architecture artefacts including SADs, ADRs, diagrams and interface contracts; maintain them.

Identify security, performance, operability, vendor lock‑in and delivery risks; mitigate through production.

Must Have

8+ years software engineering

3+ years technical leadership

Hands‑on live project leadership

End‑to‑end production delivery

Azure public cloud expertise

Hybrid environment working experience

Java or Python proficiency

Cross‑language code review capability

Nice to Have

Java and Python proficiency

French or Dutch proficiency

Azure certifications or equivalent

Detailed Responsibilities and Skills

• 8+ years of software engineering experience.
• 3+ years personally leading technical delivery as a tech lead, lead developer or solution architect on a live project; advisory‑only architecture experience is insufficient.
• Proven team‑based end‑to‑end delivery from solution design through production deployment.
• Clear, direct English communication; full professional proficiency.
• Advanced Agile experience (most recent experience 1–3 years ago).
• Expert architecture and technical applications skills (most recent experience 1–3 years ago).
• Expert technical leadership skills (most recent experience 1–3 years ago).
• Senior solution architect experience (most recent experience 1–3 years ago).
• Native or bilingual Dutch or French proficiency, as specified in the Languages section.
• Commitment to working on‑site in Brussels at least three days each week.
• Experience coaching medior developers and communicating with client, product, infrastructure and security stakeholders.
• French and/or Dutch proficiency, described as an advantage in the Profile.
• Experience delivering in regulated organisations in Belgium.

Technical skills

• Confirmed Azure or equivalent public cloud expertise.
• Comfortable working with hybrid cloud and infrastructure setups.
• Confirmed Java or Python proficiency, with ability to read, review and guide development in the other language.
• Solid DevOps practices including CI/CD.
• Automated testing experience.
• Infrastructure‑as‑code literacy sufficient to review pipelines and environments.
• Security by design: identity, secrets, least privilege, encryption and data protection.
• Advanced Azure skills (most recent experience 1–3 years ago).
• Advanced security‑by‑design skills (most recent experience 1–3 years ago).
• Both Java and Python proficiency.
• Architecture across application, integration, data and security domains; production readiness and operational risk mitigation.

Tools

• Git version control and branching practices.
• Advanced CI/CD and Azure DevOps skills (most recent experience 1–3 years ago).
• Azure AZ‑204 or AZ‑305 certifications, or equivalent practical evidence.
• Infrastructure as Code with Bicep.
• Infrastructure as Code with OpenTofu.
• Azure DevOps, Git, CI/CD pipelines, Java or Python, Azure or equivalent cloud; SAD, ADRs, architecture diagrams and interface contracts.