iLocatum

San Francisco, CA

Founding Frontend Engineer

Founding Frontend Engineer

Job ID: SRN2025-10018
Position: Founding Frontend Engineer
Type: Full Time
Location: San Francisco, CA
Compensation: $170,000 - $200,000

About the Role:
We are looking for a skilled and motivated Frontend Engineer to help shape the user experience of an innovative no-code platform for creating customized LLM applications. In this role, you will have the exciting opportunity to lead frontend development, designing user-friendly interfaces and ensuring seamless integration with the backend.

You will be part of a dynamic startup environment, where you will develop powerful, scalable, and secure solutions that redefine how users interact with LLM-powered tools such as RAG, SQL-to-text, and structured outputs.

Roles and Responsibilities:

  • Create and implement visually appealing and responsive UIs that meet user expectations.

  • Take full ownership of frontend development, iterating quickly and independently.

  • Utilize frameworks and libraries used in GenAI platforms, including ChatGPT, Perplexity, and Claude.

  • Optimize API data structures by utilizing JSON schemas, pagination, filtering, sorting, and indexing for large datasets.

  • Build and maintain RESTful and WebSocket APIs using robust version control and resource-based architecture.

  • Develop and manage web applications using modern frameworks like Vue.js/Nuxt.js or React.js/Next.js.

  • Implement security best practices, including input validation, OAuth/JWT authentication, and compliance with OWASP standards.

  • Collaborate with backend teams to design and implement scalable APIs following RODL principles.

Job Requirements:

  • Proven track record of independently delivering significant products or features with measurable impact.

  • Expertise in Python-based API frameworks, such as FastAPI.

  • 5–10 years of experience in frontend engineering (3+ years considered for outstanding candidates).

  • Previous experience in fast-paced Series B+ startups, such as Stripe, Scale AI, Databricks, or DataRobot.

  • Demonstrated ability to build complex and scalable user interfaces with pixel-perfect implementation from Figma designs.

  • Expert-level skills in Vue.js (preferred) or React, with proficiency in TypeScript and design systems.

  • Proficiency in SQL (MySQL) and NoSQL (e.g., DynamoDB, DataStore, Redis) databases.

  • Experience with CI/CD pipelines, preferably using AWS/GCP with Docker.

  • Strong understanding of Git workflows, including version control using GitHub.

  • Ability to thrive in a startup environment with fast-paced changes and uncertainty, and willingness to work long hours when needed.

  • Must be a U.S. Citizen or Permanent Resident.

Nice to Have:

  • In-depth knowledge of API design, particularly in OpenAI/Stripe-style integrations.

  • Experience with both RESTful and WebSocket (Socket.io) APIs.

  • A strong portfolio showcasing past products or projects.

Back to Jobs

  • Max. file size: 300 MB.

Ready to take
the next step?

Submit your resume and join a realm of unparalleled opportunities at iLocatum. We’re dedicated to connecting exceptional talent with impactful roles. Start your journey towards success by sharing your expertise with us.