Full Stack Software Engineer, World ID

Location

San Francisco

Employment Type

Full time

Location Type

On-site

Department

World ID

About the Company

World is a network of real humans, built on privacy-preserving proof-of-human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all. It is built to connect, empower, and be owned by everyone.

The team

World ID is a digital identity system and proof of humanity for everyone, designed to be a foundational identity protocol for the internet in the era of AGI. It is built to be self-custodial, secure, decentralized and open, setting new standards for privacy and transparency.

At the heart of World ID are groundbreaking innovations in hardware and softwarespanning distributed systems, cryptography, sensors, biometrics, machine learning and blockchain technology.

The opportunity

As a Full Stack Software Engineer , you will be at the forefront of expanding the World ID ecosystem. Youll work on defining and building the developer-facing APIs, Web SDKs, user-facing applications and partner integrations that would delight developers and users alike, and showcase the power of World ID in solving the novel challenges posed by AGI.

As a web developer with strong backend skills who is passionate about building the bridges between a core protocol and its real-world applications, this role is ideal for you. Your work will be the primary touchpoint for our partners, making their success your own.

Your responsibilities include

Web SDK Development : Own the design, development and maintenance of our public-facing JavaScript / TypeScript SDK, ensuring it is future-proof, robust, well-documented and easy to use by partners.

Partner Integrations : Work directly with partners to support integration efforts, building reference applications, browser add-ons and other tools to ensure their success on our platform.

API Development : Build and scale efficient, reliable APIs and backend services using TypeScript to support our own applications, SDKs and partner needs, including web API servers, backend services and user-facing web components.

Web Application Development : Design, build and maintain essential web components, reference implementations and end-user-facing applications that use World ID.

Cross-functional Collaboration : Work closely with product managers, designers, other engineers and XFN stakeholders to deliver cohesive and impactful solutions that advance the World network.

Technical Leadership : Support a small group of junior engineers and external contractors as a hands-on technical lead, guiding technical design, reviewing code and ensuring urgency, completeness and quality of projects.

About you

You have a proven track record of building high-quality web applications and well-designed developer APIs and SDKs. You are fluent in the modern web stack and possess backend proficiency to build and manage the services that power your applications. You are passionate about creating excellent developer experiences and understand that the success of an SDK is measured by the success of the developers who use it. You can communicate clearly, work effectively in a fast-paced environment, and are motivated by the challenge of building the user- and developer-facing layers of an ambitious, world-changing protocol. You are an effective and respected tech lead of small teams.

Requirements

• Excellent communication skills and a collaborative mindset, with the ability to articulate technical concepts to both technical and non-technical audiences.
• Experience supporting third-party developers and partner integrations.
• Expertise with modern web frameworks based on JavaScript and TypeScript.
• Experience building and maintaining public-facing SDKs or developer-focused libraries.
• Experience with server-side development and building RESTful APIs (familiarity with Go, Rust, or other compiled languages is a plus).
• Ability to work across the full stack, from web servers and simple database interactions to client-side application logic.

By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR.

Pay transparency statement (for CA and NY based roles)

The reasonably estimated salary for this role at TFH ranges from $216,000 - $240,000 , plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits for this role including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more!

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