Backend Developer at HarmonizedX Limited

At HarmonizedX, we are building the trust layer of a hyper-connected world. From governments to enterprises, our products unify every step of the digital identity lifecycle so citizens, customers and partners can transact with trust.

We are recruiting to fill the position below:

Job Title: Backend Developer

Location: Abuja
Work mode: Hybrid

About the Role

• HarmonizedX is expanding, and we’re looking for a high-performing Backend Engineer to join our engineering team. If you’re passionate about building secure, scalable, and reliable backend systems, this is your chance to work on products that power real businesses across Nigeria.

Responsibilities
What you'll do:

• Architect, develop, and maintain backend services, APIs, and microservices
• Collaborate with frontend, product, and DevOps teams to build end-to-end solutions
• Optimize systems for speed, efficiency, and scalability
• Integrate third-party APIs and internal platforms
• Implement strong security practices and data protection standards
• Troubleshoot, monitor, and improve production systems
• Contribute to code reviews, documentation, and engineering best practices

Requirements
What we’re looking for:

• 4+ years of backend development experience
• Strong proficiency with Node.js, Python, Go, or Java
• Solid understanding of RESTful APIs and microservices architecture
• Experience working with relational or NoSQL databases (PostgreSQL, MongoDB, MySQL etc.)
• Familiarity with cloud services (Digital Ocean) and containerization (Docker)
• Knowledge of CI/CD pipelines and DevOps workflows is a plus
• Strong debugging, optimization, and problem-solving skills

Bonus Experience:

• Authentication, authorization, and security best practices
• Distributed systems or message queues (RabbitMQ, Kafka)
• Experience with large-scale B2B or fintech products

Why join HarmonizedX?

• Work on enterprise-grade products used nationwide
• Be part of an innovative team building high-impact solutions
• Competitive salary and real opportunities for career growth
• A culture that values collaboration, ownership, and engineering excellence

Application Closing Date
30th November, 2025.