Job Description

We are seeking a Backend Software Engineer to design, build, and maintain scalable backend systems and APIs that support multiple internal and customer-facing platforms. This role focuses on backend architecture, system integration, and API-driven platforms. The successful candidate will work closely with frontend developers to define clean, well-structured API contracts and data models that enable effective user-facing experiences. The systems under development are integration-heavy and must support secure, reliable interactions across OSS/BSS platforms. Strong emphasis is placed on backend design, service orchestration, and alignment with TM Forum Open APIs and, where applicable, MEF standards.
Responsibilities:

• Design, develop, and maintain backend services and APIs using Python (Django, FastAPI, or similar frameworks)
• Build and maintain TMF-aligned REST APIs for service ordering, product catalogue, feasibility, provisioning, monitoring, and ticketing
• Integrate backend services with internal and external systems, including OSS/BSS platforms, ServiceNow, and third-party APIs
• Collaborate with frontend developers to define API contracts, data models, and response structures that support user-facing applications
• Implement authentication and authorization mechanisms such as OAuth2, SSO, and service-to-service authentication
• Design and maintain backend data models and persistence layers (PostgreSQL/MySQL)
• Implement robust error handling, logging, monitoring, and observability for backend services
• Write and maintain technical documentation for APIs, integrations, and backend workflows
• Perform ongoing maintenance, debugging, and performance optimization of backend systems
• Work closely with system architects, integration engineers, and business stakeholders to refine requirements and ensure alignment with enterprise standards

Required skills/tools:

• 5+ years of experience in backend software development, using Python (Django, FastAPI, Flask, or similar)
• Strong experience designing and implementing RESTful APIs
• Solid understanding of authentication and authorisation mechanisms (OAuth2, JWT, SSO)
• Experience working with relational databases such as PostgreSQL or MySQL
• Familiarity with API versioning, backward compatibility, and contract-driven development
• Experience with CI/CD pipelines and Git-based workflows (GitHub or GitLab)
• Experience building and operating production backend services
• Working knowledge of containerization (Docker) and cloud environments (AWS or GCP)
• Comfortable collaborating with frontend developers and contributing to shared design decisions
• Experience with TM Forum Open APIs (especially TMF622, TMF641, TMF645)
• Familiarity with MEF standards and APIs
• Prior experience in telecom, ISP, or OSS/BSS environments
• Exposure to service orchestration, provisioning, and service assurance systems
• Familiarity with ServiceNow, particularly CSM, SOM, or TSM modules
• Experience designing backend systems that support high-volume, integration-heavy workloads

Qualifications:

• Degree/Diploma in Information Technology

Skills Required