Nafasi ya kazi :- Backend Engineer at Coop Bank January 2026

The Backend Developer will design, develop, and maintain server-side logic, databases, and APIs for our digital banking products. Will build secure, scalable backend systems for mobile banking, internet banking, USSD services, and integrations with core banking and third-party services, ensuring compliance with Bank of Tanzania regulations.

1. Development & Architecture

• Design and develop scalable RESTful APIs and microservices for digital banking platforms
• Build secure authentication mechanisms (OAuth 2.0, JWT, MFA)
• Implement business logic for account management, transactions, payments, loans, and card services
• Integrate with core banking systems, payment gateways, mobile money operators, and third-party services
• Develop batch processing for reconciliation, statements, and regulatory reporting
• Build notification services (SMS, email, push notifications)
• Optimize for low-latency responses and high availability

2. Database Management

• Design efficient database schemas for transactional banking data
• Write optimized SQL queries and stored procedures
• Implement database indexing, performance tuning, and ACID compliance
• Manage backups, recovery, and disaster recovery procedures
• Work with SQL (PostgreSQL, MySQL, Oracle) and NoSQL (MongoDB, Redis) databases

3. Security & Compliance

• Implement secure coding practices aligned with OWASP and PCI DSS
• Develop encryption for data at rest and in transit
• Build fraud detection and transaction monitoring systems
• Ensure compliance with Bank of Tanzania regulations and data protection laws
• Implement audit logging for financial transactions

4. Performance & Monitoring

• Implement caching strategies using Redis
• Set up logging and monitoring (ELK Stack, Prometheus, Grafana)
• Conduct load testing and performance optimization
• Implement circuit breakers and fallback mechanisms

5. Collaboration & Delivery

• Collaborate with frontend, mobile developers, and QA engineers
• Participate in agile processes and code reviews
• Write API documentation using Swagger/OpenAPI
• Support production issues and participate in on-call rotation

Education

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or related field, or equivalent practical experience

Technical Skills

• Programming languages (Java, Python, Node.js, C#, Go)
• Backend frameworks (Spring Boot, Django, Express.js, .NET Core)
• RESTful API design and GraphQL
• SQL and NoSQL databases (MySQL, Postgres, Oracle)
• Microservices architecture
• Authentication (OAuth 2.0, JWT, SSO, MFA)
• Security, encryption, OWASP, PCI DSS
• Git version control
• Docker, Kubernetes, CI/CD tools
• Cloud platforms (AWS/Azure/GCP)
• Unit testing and TDD

Core Competencies

• Strong problem-solving and analytical thinking
• Excellent coding standards and attention to detail
• Effective communication and collaboration
• Commitment to security and best practices

Experience

• 3-5 years of backend development, with at least 2 years in banking, fintech, or payment systems
• Experience with Tanzanian banking or financial services is highly valued
• Track record of building scalable, high-performance systems
• Experience with core banking integrations and payment gateways
• Knowledge of financial transaction processing and banking workflows

• Critical Thinking and Problem Solving Skills

• Communication Skills