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API Tooling Maintainer
Location: India
Introduction to TM Forum:
TM Forum is a global alliance of more than 800 telco and tech companies, leading the industry in defining the building blocks for new operating models, impactful new partnerships, and advanced software platforms. The Forum helps its members unlock the value of data to create nearly endless opportunities for players across the communications ecosystem. At global events including DTW Ignite, TM Forum provides a platform for industry change-makers to share ground-breaking innovation, market developments, product launches and business transformation journeys. We are the only industry body to count the world’s top 10 CSPs and all the key hyperscalers as active, strategic members. We are on a mission to reinvent the telco industry as a vibrant part of the digital landscape – and a driving force in shaping its future. To find out more, visit: tmforum.org.
Role Overview:
The API Tooling Maintainer is a key technical and community-facing role responsible for owning, maintaining, governing, and evolving the TM Forum API tooling ecosystem. This includes the tools used to design, generate, validate, publish, and certify TM Forum Open APIs. The role is designed in the “open source maintainer” sense — providing leadership, moderation, code review, roadmap shaping, and operational stewardship for tools that underpin the global TM Forum API program.
The Maintainer is essential to stabilizing and scaling the API Factory, eliminating single points of failure, unlocking throughput, and improving automation of our build process.
Key Responsibilities
1. Ownership & Governance of API Tooling
Serve as the single accountable owner for day to day health and performance of TM Forum’s API tooling ecosystem.
Act as the gatekeeper(responsible person for) and design authority for tool quality, standards compliance, and architectural alignment (OpenAPI, AsyncAPI, JSON Schema, OAuth/OIDC, ODA compatibility).
Ensure all tooling aligns with TM Forum’s contract-first, standards-first architectural principles.
2. Community & Contribution Management
Moderate and support member contributions — reviewing, mentoring, and merging community tooling updates.
Facilitate technical contributions across vendors, CSPs, integrators and hyperscalers, ensuring fairness and neutrality.
Drive open collaboration and maintain contributor engagement.
3. Delivery Pipeline & CI/CD Support
Maintain the tooling that underpins our API build release, and publication process.
Work closely with DevOps to remove bottlenecks in CI/CD for APIs and associated code assets.
Support CTK (Conformance Test Kit) automation, generation, bug triage, and certification tooling evolution.
4. Roadmap, Innovation & Future proofing
Lead the roadmap for next generation API tooling, including AI assisted API production e.g., Build 1 OAS creation, CTK auto generation.
Innovate tooling to support upcoming initiatives (API Specializations, Async APIs, improvements/innovation, schema integrations).
Ensure tooling scalability and robustness as volume grows (e.g., 10+ APIs per quarter, v4→v5 migration).
5. Toolchain Operations & Support
Maintain stable, secure, transparent operations with visibility of changes and traceability of outputs.
Manage issues, triage defects, coordinate fixes, and ensure reliability of build pipelines and tooling-generated artefacts.
Ensure all outputs (OpenAPI descriptions, profiles, CTKs, assets) are versioned, published, and consumable by members.
Key Skills & Experience
Technical Skills
Strong experience with OpenAPI 3.x, JSON Schema, AsyncAPI, API design and contract-first development.
Solid understanding of CI/CD workflows, automation pipelines, and tooling ecosystems.
Familiarity with GitHub, schema repositories, build systems, and API lifecycle automation.
Ability to debug and support CTK pipelines, certification logic, and schema changes.
Community & Governance Skills
Experience in open-source maintenance or community-driven technical governance.
Ability to coordinate multi-vendor contributions in a neutral, structured way.
Strong review, moderation and facilitation skills.
Delivery & Coordination Skills
Ability to work closely with API architects, Product Owner and Project Manager, Members, external collaborators and DevOps to unblock delivery blockers.
Skilled at identifying gaps, risks, and dependencies in the API Factory and implementing mitigation.
Diversity & Inclusion at TM Forum
At TM Forum, we’re building a workplace where everyone can belong, feel respected, supported and able to do their best work. We welcome talent from all walks of life to join our global community, which is made stronger by the different perspectives, backgrounds and experiences each person brings. We hire based on skills, potential and values, never on assumptions about who someone is or where they come from. We actively work to ensure our recruitment and people practices are fair, inclusive and free from bias.
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