Software Developer

Job Overview

Onfon Microfinance is seeking a qualified Software Developer to design, develop, test, maintain, and support its software applications, tools, and platforms.

Organization

Onfon Microfinance

Position

Software Developer

Primary Responsibilities

The Software Developer will:

• Design, architect, develop, test, maintain, and support software tools, applications, and platforms.
• Participate in all stages of the software development lifecycle, including:
  • Coding
  • Documentation
  • Testing
  • Deployment
  • User training
  • Post-implementation support
  • Maintenance
  • Issue resolution
• Evaluate and improve existing products by researching and integrating new and alternative technologies, tools, frameworks, and architectural approaches.
• Develop scalable, robust, modular, automatable, efficient, and maintainable code.
• Implement modular software components with a clean separation of concerns to support maintainability and reusability.
• Orchestrate modules and services to ensure smooth system performance, proper integration, and high availability.
• Design and implement unit tests using frameworks such as Jest, JUnit, PyTest, and Mocha to ensure code quality and support continuous integration processes.
• Work with message-queuing technologies such as Kafka or RabbitMQ to build scalable and decoupled distributed systems.
• Collaborate with cross-functional teams to brainstorm, prototype, and build new products and features.
• Demonstrate a passion for modern technologies, particularly open-source ecosystems.
• Participate in peer reviews, knowledge-sharing discussions, and continuous improvement initiatives.
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Qualifications and Experience

Applicants should have:

• A degree in Computer Science or a related field.
• At least three years of relevant software development experience covering both front-end and back-end development.
• Proficiency in front-end development using ReactJS.
• Strong back-end development experience using Python, Java, or Node.js.
• An understanding of API development and integration protocols, including REST and SOAP.
• Experience working with relational and non-relational databases such as MySQL, PostgreSQL, and MongoDB.
• Hands-on experience using Kafka or RabbitMQ for message queue processing.
• A strong understanding of software engineering principles, including modularization, microservices patterns, and system orchestration.
• Experience writing and maintaining unit tests using modern testing frameworks.
• Familiarity with human-centered design and UI/UX methodologies.
• Demonstrated experience completing coding assessments on platforms such as Codility.
• Experience with CI/CD pipelines, Git, containerization technologies such as Docker, and cloud environments will be an added advantage.

How to Apply

Interested candidates who meet the requirements should submit their updated CV by email.

Email: cv@onfonmicrofinance.cot.tz

Email subject: Software Developer

Application deadline: 17 July 2026

Only shortlisted candidates will be contacted.

Important note: The email address above has been reproduced exactly as it appears in the supplied vacancy notice.