Design, develop, and maintain scalable enterprise backend services, microservices, REST APIs, and integration layers. Build cloud-native applications, implement automated testing, support CI/CD, troubleshoot production issues, optimize performance, and contribute to architecture decisions. Review code, mentor junior developers, document APIs and operations, and collaborate with product, architecture, DevOps, QA, and global business teams.
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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