Vacancy title:
IT Architect

[Type: FULL_TIME, Industry: Professional Services, Category: Computer & IT]

Jobs at:
Rwanda Revenue Authority

Deadline of this Job:
Friday, October 3 2025

Duty Station:
Rwanda | Kigali | Rwanda

Summary
Date Posted: Monday, September 29 2025, Base Salary: Not Disclosed

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JOB DETAILS:

The Rwanda Revenue Authority (RRA) has operated its core tax systems for more than 10 years. These systems which significantly support revenue mobilization currently run on a monolithic architecture. Over time, several limitations have emerged, including performance degradation, integration challenges, and architectural inflexibility. To address these issues, RRA is undertaking a modernization effort to transition the domestic tax system to a modern microservices-based architecture.

This strategic transformation aims to:
✓ Improve system performance and scalability
✓ Enable smoother integration with external systems
✓ Enhance maintainability and flexibility of tax services
✓ Strengthen automation and data accuracy

2. Objective of the Assignment

The objective of this assignment is to lead and technically guide the transition of the systems to a microservices architecture, ensuring that design, development, deployment, and security align with international best practices.

3. Scope of Work

Under the supervision of the Project Management, the Architect will:

System Architecture Design
✓ Define the overall microservices architecture for existing domestic systems, including key components: API Gateway, SSO, Event Sourcing, Discovery, Monitoring, and Configuration Services.
✓ Develop service decomposition models aligned with RRA’s core tax functions (registration, returns, payments, refunds, etc.).
✓ Design for security, scalability, and performance, incorporating CI/CD practices and containerization (e.g., Docker, Kubernetes).

Implementation Guidance
✓ Lead architectural decision-making for platform selection and technology stack (e.g. Spring Boot, PostgreSQL/MySQL, and Docker Swarm).
✓ Support setup of development, test, and production environments, including infrastructure and monitoring tools.
✓ Establish architectural standards, documentation templates, and service contracts for micro services.

Quality Assurance & Risk Mitigation
✓ Conduct architecture reviews, ensure system resilience, and fault tolerance.
✓ Address and mitigate architecture-related risks including SSO incompatibility, data migration, and environment segregation.
✓ Ensure compliance with ISO security standards and OWASP guidelines.

Capacity Building
✓ Provide coaching and mentorship to internal IT teams on microservices principles, DevSecOps practices, and secure system design.
✓ Support the upskilling of development and operations teams to adopt modern software practices and tools.

4. Deliverables

✓ Detailed RRA domestic tax system microservices architecture blueprint
✓ Service decomposition and data models for each module
✓ Documentation of technical standards and integration interfaces
✓ Reports on system environment readiness and risk mitigation strategies
✓ Workshop sessions and capacity-building reports
✓ Monthly progress reports to the PM

5. Required qualifications skills and competences

✓ Bachelor’s or Master’s Degree in Computer Science, Software Engineering, or related field
✓ At least 7 years of professional experience in system/software architecture
✓ Minimum of 3 years designing and implementing microservices architectures
✓ Proven expertise with: Backend (Java/Spring Boot), Frontend frameworks (Angular, Vue, or React), API design and security protocols, Containerization and orchestration (Docker, Kubernetes), CI/CD and DevOps toolchains (GitLab, Jenkins) and Monitoring tools (Grafana, Prometheus, ELK stack)

Desirable
✓ Familiarity with tax or revenue systems
✓ Knowledge of ISO 27002 and cybersecurity implementation
✓ Experience working with public sector organizations or donor-funded projects

6. Reporting and Supervision

The Architect will report to the PM and collaborate closely with:
✓ Commissioner, IT and Digital Transformation
✓ Business Analysts
✓ Backend and Frontend Developers
✓ DevOps Engineers
✓ Cybersecurity Experts

Work Hours: 8

Experience in Months: 84

Level of Education: bachelor degree

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