Staff Developer Tooling Engineer

Senior Software Engineer - Developer Tools & SDKs

Location: Remote - US & Americas

Compensation: $ Competitive

We are a fast-growing software company dedicated to supporting and developing an EVM-compatible, open-source, proof-of-stake platform. This public network is engineered for enterprise and Web3 applications, prioritizing speed, security, stability, and sustainability, and is governed by industry-leading organizations. We are seeking an experienced Software Engineer to lead the development of world-class developer tools and SDKs.

You will take the lead on crafting seamless developer experiences, owning the design, build, and maintenance of our open-source SDKs and related tooling. This role requires technical leadership, hands-on coding across multiple languages, and a strong focus on developer empathy. You will work cross-functionally to ensure our tools are intuitive, robust, and aligned with real-world developer needs.

What You'll Be Doing:

• SDK Development: Design, build, and maintain Open Source SDKs and related tooling that enable developers to integrate easily with our platform.
• Developer Experience (DX) Champion: Champion and implement best-in-class developer experience standards across all tooling and SDKs.
• Architecture & Mentorship: Lead and mentor a team of engineers, providing architectural vision and technical guidance.
• API Integration: Consume and produce high-quality RESTful, GraphQL, or gRPC APIs with a clean, consistent design.
• Workflow Enhancement: Design, integrate, and enhance developer workflows across popular IDEs (e.g., VS Code, IntelliJ) and debugging tools to streamline the development experience.
• Leadership: Serve as a technical voice and mission-driven leader, rallying and inspiring the team around shared goals.

Requirements

• Experience:5+ years of hands-on experience in Java, C++, JavaScript, Python, Go, Swift, and/or Rust (proficiency in several is preferred).
• SDK Expertise: Proven experience in designing, developing, and maintaining SDKs or developer platforms.
• APIs & Protocols: Experience in consuming and producing clean APIs.
• DX Focus:Strong focus on delivering delightful developer experiences and empathy for API consumers.
• Leadership: Ability to technically lead and mentor engineers across functions.
• Debugging Tools: Strong understanding of modern IDE internals and debugging protocols (e.g., DAP, GDB, LLDB) with hands-on experience extending or customizing IDE/debugger functionality.
• Mindset: Customer-oriented mindset with a bias toward action, self-driven, curious, and comfortable with ambiguity.

Preferred Experience (Nice-to-Haves):

• Experience with Web3 Apps, Decentralised Ledger Technologies (DLTs), and/or Blockchains.
• Background in writing smart contracts for Ethereum or other EVM-based chains.
• Familiarity with gRPC and Protocol Buffers for high-performance API communication.
• Contributions to open-source SDKs, devtools, or infrastructure libraries.

Benefits

• Compensation: Competitive package including Equity and Tokens.
• Performance: Opportunities for Performance Bonuses.
• US Benefits:Health insurance and 401k for US employees.
• Impact: Work on the core developer infrastructure for an enterprise-grade, public, proof-of-stake platform.
• Culture: Collaborative mindset with a commitment to continuous learning and mission-driven work.

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

Commitment to Equality and Accessibility:

At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.

MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.