Polaris Digitech Limited| Full-time

BACKEND DEVELOPER (JAVA) AT POLARIS DIGITECH LIMITED | BACKEND DEVELOPER JOBS IN LAGOS

Ikeja, Lagos, Nigeria | Posted on 01/03/2026

About Company:

Polaris Digitech Limited is a location intelligence firm that specializes in providing data, software and decision support services to fulfill its client’s strategies and management needs through the development and deployment of Geographic Information Systems (GIS).

Job Description:

We are seeking a high-caliber Backend Developer to join our engineering team in building the "engine" behind high-performance applications. This role is designed for a developer who moves beyond simple coding to focus on scalability, security, and seamless integration.

You will collaborate with cross-functional teams to design and deploy robust server-side logic for various sectors. Your mission is to ensure that our applications are fast, reliable, and capable of handling complex data transactions. If you are a specialist in Java (Spring Boot) and Node.js/JavaScript with a passion for clean API design, we want to hear from you.

Requirements:

1. Scalable Server-Side Development

  • Application Architecture: Develop and maintain high-performance backend logic using Java (Spring Boot) and JavaScript, ensuring the code is modular, testable, and scalable.

  • System Optimization: Optimize applications for maximum speed and scalability to support diverse sectors ranging from Fintech to Logistics.

  • Data Management: Design and manage database schemas that represent and support complex business processes.

2. API Engineering & Integration

  • RESTful Design: Architect and implement high-quality RESTful APIs that allow for seamless communication between the front-end and the server.

  • Modern Protocols: Utilize GraphQL (where applicable) to optimize data fetching and improve application performance.

  • Documentation Excellence: Maintain rigorous API documentation (using tools like Swagger or Postman) to ensure clear communication with front-end teams and third-party integrators.

3. Collaboration & Lifecycle Management

  • Cross-Functional Synergy: Work closely with Front-end Developers and UI/UX Designers to integrate user-facing elements with server-side logic.

  • Security Implementation: Build-in security protocols and data protection measures at the architectural level.

  • Continuous Integration: Participate in the full software development life cycle (SDLC), including code reviews, unit testing, and deployment.

Qualifications and Skills:

Professional Profile

  • Education: BSc or HND in Computer Science or a related discipline.

  • Experience: Minimum of 2 years of active work experience in a Backend Development capacity.

Technical Stack

  • Languages: Expert-level proficiency in JavaScript and Java (Spring Boot).

  • API Design: Proven track record in RESTful API development and integration.

  • Pluses: Experience with GraphQL and automated API documentation tools.

Core Competencies

  • Problem-Solving: Ability to debug complex logical issues and optimize slow-running queries.

  • Collaboration: Strong interpersonal skills to work effectively within an Agile team environment.

  • Adaptability: Comfort working on applications across different industry sectors.

Salary

Very attractive

Application Closing Date: Not specified

Application Instructions:

Interested and qualified candidates should send their CV to: careers@polarisdigitech.net using "Backend Developer" as the subject of the email.

  

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Job Information

Deadline

Not specified

Job Type

Full-time

Industry

ICT/TECH

Work Level

Experienced

City

Ikeja

State

Lagos

Country

Nigeria

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