Fullstack Developer

Job Description

Experience : 3.00 + years Salary : Confidential (based on experience) Expected Notice Period : 7 Days Shift : (GMT+05:30) Asia/Kolkata (IST) Opportunity Type : Remote Placement Type : Full Time Contract for 12 Months(40 hrs a week/160 hrs a month) (*Note: This is a requirement for one of Uplers' client - AI software company from California) What do you need for this opportunity? Must have skills required: Critical Thinking, Strong problem-solving, react, REST API, SQL/PostgreSQL, TypeScript, Nodejs, FastAPI AI software company from California is Looking for: Fullstack Dev Role Overview We are looking for a Fullstack Engineer who can deeply understand and reconstruct complex product experiences from UI structure and user workflows, to backend APIs, data modelling, and system behaviour. In this role, you?ll replicate production-grade SaaS platforms and wire them up to our backend systems and AI agents. You?ll work in a tight team of three to build interfaces and workflows that feel indistinguishable from the real product, but operate on synthetic or proxy data models. This is a high impact, high-ownership role with fast iteration cycles. Background As a Fullstack Engineer, you?ll be working on developing advanced computer-use environments used in developing AI models. Here we work with frontier AI labs to train their models to engage in the most valuable tasks of tomorrow. You will work on the edge of the AI data industry and learn valuable skills to push the development of advanced AI. Note: This role does not require any AI / Computer-Use model training experience. What You?ll Do Develop end-to-end products and workflows (such as tables, expenses, reimbursements, billing flows, and organizational management) Implement React frontends with clean, maintainable TSX component systems Build and integrate backend services, including: REST APIs Session management and auth flows Database schema design and implementation Service wiring and state handling Work with data to demonstrate functional workflows without requiring live integrations Own feature development end-to-end, from architecture ? implementation ? testing ? polish Conduct code reviews and uphold a strong engineering quality bar within the team Example Scope You Might Take On You may be tasked with replicating core workflows from the Ramp platform: Expenses & Reimbursements lifecycle Virtual card creation + request flows Employee / org management dashboards Billing & accounting pages with filtering/sorting/state flows Navigation + interaction patterns matching real UX Reference design surface: https://try.ramp.com/home The goal is a real and functional product experience used to train advanced AI models, for example OpenAI ChatGPT and Anthropic Claude, to navigate these environments to complete valuable tasks. What We?re Looking For Professional software engineering experience in production systems Strong proficiency in: TypeScript React or similar frontend framework FastAPI or similar backend framework SQL/PostgreSQL or similar database framework Ability to design and implement: HTTP/REST APIs DB schemas + migrations (PostgreSQL strongly preferred) Server routing and session management/auth Strong product intuition: you need an eye for workflow correctness, UX clarity, and UI polish Ability to reverse engineer workflows from observation and documentation Self-directed execution with clear communication and structured reasoning How to apply for this opportunity? Step 1: Click On Apply! And Register or Login on our portal. Step 2: Complete the Screening Form & Upload updated Resume Step 3: Increase your chances to get shortlisted & meet the client for the Interview! About Uplers: Our goal is to make hiring reliable, simple, and fast. Our role will be to help all our talents find and apply for relevant contractual onsite opportunities and progress in their career. We will support any grievances or challenges you may face during the engagement. (Note: There are many more opportunities apart from this on the portal. Depending on the assessments you clear, you can apply for them as well). So, if you are ready for a new challenge, a great work environment, and an opportunity to take your career to the next level, don't hesitate to apply today. We are waiting for you!