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TM Forum Logo TM Forum · IT - Software Development

Api Developer

India, Mumbai · Job Posted May 16, 2026
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Job Description

The API Developer is a hands-on technical role focused on improving the technical delivery and developer experience of TM Forum APIs. You will support a member-driven API programme, enabling high-quality API development with a diverse group of contributors. Working with open standards, tooling, automation, and collaborative workflows, you will help ensure APIs are consistent, implementable, and easy to consume and contribute to.

Job Responsibility

  • Support member-driven API development by reviewing and improving API definitions for clarity, consistency, and quality
  • Provide technical guidance and feedback on API designs without owning functional API decisions
  • Help translate member input into high-quality, standards-aligned API assets
  • Apply and reinforce API design standards and governance principles
  • Ensure APIs align with OpenAPI and other relevant open standards
  • Identify design issues, inconsistencies, and technical debt, and propose improvements, patterns, or guidance
  • Design, build, and maintain internal API tooling, primarily using Node.js
  • Improve tooling that supports API validation, testing, generation, and publishing
  • Reduce manual effort and friction in the API delivery lifecycle through automation
  • Support API testing and validation activities
  • Work with API testing frameworks, conformance tooling, and quality gates
  • Diagnose and resolve issues across API definitions, tooling, and CI pipelines
  • Work effectively with git- and GitHub-based workflows
  • Contribute to and improve CI processes related to API development and validation
  • Collaborate with tooling, DevOps, and architecture roles to improve delivery flow
  • Improve the developer experience for API consumers and contributors
  • Produce clear technical documentation, guidance, and examples
  • Communicate decisions, feedback, and technical changes clearly and constructively
  • Operate effectively in an open, multi-organisation contribution environment
  • Engage with members and contributors in a supportive and neutral way
  • Encourage good contribution practices and high technical quality.

Requirements

  • Strong coding experience, with a particular focus on Node.js (especially for building tooling and automation)
  • Solid understanding of API design and governance using OpenAPI, with experience working with open standards and contract-first approaches
  • Proficient with Git, GitHub, and CI workflows, and comfortable working with a range of API tooling, testing, and validation practices
  • Strong written and verbal communication skills, with the ability to collaborate with both technical and non-technical stakeholders.

Nice to have

  • Experience of AI tools to enhance velocity and quality of development: Github copilot, claude etc
  • Testing or quality engineering experience
  • Technical writing or documentation experience
  • Open source contribution or maintenance experience
  • Telecoms or BSS/OSS domain experience.
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