Backend and Integration Engineer

Job Summary

• We are seeking a skilled Backend / Integration Engineer to build, maintain, and optimise backend services and integrations connecting our lending platform with third-party providers across identity verification, credit assessment, payments, and collections.
• The ideal candidate will ensure that integrations are secure, reliable, well-tested, and properly documented, while supporting the development of internal APIs and maintaining the stability of production systems.

Key Responsibilities

• Build, maintain, and optimise third-party integrations, including webhooks and callbacks, with proper signature verification and reliable retry mechanisms.
• Design, develop, and maintain internal APIs used by the customer portal, staff console, and business dashboards.
• Implement automated tests and monitoring for all integrations to ensure reliability and identify potential issues early.
• Document integration processes, API specifications, and technical workflows for easy maintenance and knowledge sharing.
• Manage credentials and sensitive information securely, ensuring appropriate access controls and maintaining audit trails of integration activities.
• Investigate, troubleshoot, and resolve production incidents promptly to minimise service disruptions.
• Prepare post-incident reports documenting identified issues, root causes, and corrective actions.
• Collaborate with the Automation Manager and other technical team members to improve system performance, integration reliability, and operational efficiency.
• Follow established software development practices, including version control, testing, and deployment procedures.
• Ensure that backend services and integrations comply with applicable data protection and security requirements.

Requirements

• Minimum of 3 years of experience building and maintaining backend services using Python or TypeScript/Node.js.
• Strong experience developing and integrating REST APIs, webhooks, and callbacks.
• Proficiency in PostgreSQL and database management.
• Experience writing and maintaining automated tests.
• Good understanding of Git and version control workflows.
• Hands-on experience with payment gateway integrations, fintech platforms, lending systems, or related financial services.
• Strong problem-solving and debugging skills, particularly in production environments.
• Ability to write clear technical documentation and work effectively within a team.

Additional Advantages:

• Experience with n8n or similar workflow automation tools.
• Familiarity with Next.js and Prisma.
• Experience with CI/CD pipelines and automated deployment processes.
• Knowledge of the Nigeria Data Protection Act (NDPA) and applicable data privacy principles.
• Experience building secure, scalable, and reliable financial technology systems.

Ideal Candidate:

• The ideal candidate is technically strong, security-conscious, and detail-oriented, with the ability to build dependable integrations and take ownership of backend systems. They should be proactive in identifying issues, documenting solutions, and ensuring that critical services remain reliable and maintainable.