Backend Developer - Scalable APIs & Secure Systems (Onsite)

PTGR AG; Time; On-site; NOK 7,344 - 14,688; Full time

Job summary

PTGR AG is seeking a Back-End Developer to design, develop, and maintain server-side components for scalable, secure, and high-performance applications. You will collaborate with frontend, AI, and infrastructure teams to ensure robust system integration and reliability.

The role emphasizes developing APIs, databases, and security protocols, with a focus on high-quality, well-documented code and continuous improvement in backend technologies. Addis Ababa location supports onsite collaboration.

Qualifications

• Proficient in backend programming languages including Go, Node.js, Python, Java, or PHP.
• Experience with backend frameworks (e.g., Express.js, Django, Spring Boot, Laravel).
• Strong knowledge of databases (SQL and/or NoSQL).
• Understanding of RESTful/GraphQL API design.
• Familiarity with cloud services and deployment (AWS, GCP, Azure).
• Strong problem-solving, debugging, and analytical skills.
• Ability to work independently and collaboratively in a team environment.

Responsibilities

• Develop, maintain, and optimize backend systems, APIs, and microservices.
• Manage and maintain databases and ensure data integrity and performance.
• Implement authentication, authorization, and security protocols.
• Integrate third-party services, payment gateways, and APIs.
• Ensure high performance, reliability, and scalability of backend systems.
• Write clean, maintainable, and well-documented code.
• Collaborate with frontend developers, product teams, and IT/DevOps for smooth system deployment.
• Participate in code reviews, debugging, and troubleshooting.
• Implement unit and integration testing to ensure software quality.
• Keep up-to-date with backend technologies and best practices.

Tools

Go

Node.js

Python

Java

PHP

Express.js

Django

Spring Boot

Laravel

SQL

NoSQL

REST

GraphQL

AWS

GCP

Azure

Testing

Job description

PTGR AG is seeking a Back-End Developer to design, develop, and maintain server-side components for scalable, secure, and high-performance applications. You will collaborate with frontend, AI, and infrastructure teams to ensure robust system integration and reliability.

The role emphasizes developing APIs, databases, and security protocols, with a focus on high-quality, well-documented code and continuous improvement in backend technologies. Addis Ababa location supports onsite collaboration.