Sr. Backend API Developer

Inabia is seeking a Senior Backend API Developer to design, build, and maintain scalable, production-grade enterprise backend services and microservices. The ideal candidate brings deep expertise in Java or Python, hands-on experience with cloud-native architectures, and a strong command of modern DevOps and CI/CD practices. Experience in the Telecommunications domain and familiarity with TM Forum Open APIs is a strong plus. Responsibilities - Design, develop, and maintain scalable backend services and microservices for enterprise-grade applications - Build secure, high-performance REST APIs and integration layers connecting internal and external systems - Develop cloud-native applications and services leveraging containerization and orchestration platforms - Participate in architecture discussions and contribute to technical design decisions - Implement robust automated unit tests, integration tests, and API validation frameworks - Review code, enforce coding standards, and mentor junior developers through peer reviews and technical guidance - Troubleshoot complex production issues and perform root-cause analysis - Monitor application health, identify bottlenecks, and drive performance optimization initiatives - Collaborate with Product Owners, Architects, DevOps & QA teams, and business stakeholders - Support CI/CD automation and deployment processes across development, testing, and production environments - Contribute to technical documentation, API specifications, and operational runbooks - Work effectively across distributed global teams and time zones Key Qualifications - Proficiency in Java (Spring Boot preferred) or Python (FastAPI, Flask, Django, or equivalent) - RESTful API design and development, API Gateway patterns, OpenAPI/Swagger - Strong Linux/Unix administration and troubleshooting skills - Docker, Kubernetes, and Helm - Version control with Git/GitHub/GitLab/Bitbucket and automated build, test, and deployment pipelines - Shell/Bash scripting - Microservices architecture and enterprise system integrations - Event-driven architectures and message brokers (Kafka, RabbitMQ, or equivalent) - Relational and NoSQL databases - Cloud platforms: AWS, Azure, and/or GCP - Unit testing frameworks (JUnit, PyTest, Mockito) and test automation - API testing tools such as Postman - Code quality tools (SonarQube preferred) and static code analysis - Monitoring and observability tools: Grafana, Prometheus, ELK - Design Patterns, SOLID Principles, performance tuning, high availability, and scalability design Preferred Qualifications - Experience implementing Telecom OSS/BSS integrations - Knowledge of TM Forum Open APIs (TMF620, TMF641, TMF622, TMF633, TMF638, TMF640, etc.) - Experience with Kubernetes-based deployments in production environments - Familiarity with Infrastructure as Code tools (Terraform, Ansible, etc.) - Understanding of distributed systems and cloud-native architecture patterns - Working knowledge of Golang

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