Full Stack Engineer

PathGen; Singapore; Hybrid; SGD 90,000 - 130,000; Full time

Job summary

PathGen-AI is seeking a Full Stack Engineer for a hybrid role based in Singapore. You will design and build end-to-end features across backend and frontend, from API design and data models to user-facing analytics interfaces.

You will work on Python backend services with FastAPI, PostgreSQL data stores, and a React + TypeScript frontend. The role emphasizes maintainability, performance, and collaboration with product teams.

Qualifications

• Proven experience building production-grade Python backend services.
• Strong TypeScript and React experience with web applications.
• Solid SQL and PostgreSQL fundamentals.
• Experience designing and consuming APIs in production systems.
• Comfort working across the stack and taking ownership of features end to end.
• Clear communication and a pragmatic, product-oriented mindset.

Responsibilities

• Design and build Python backend services, primarily using FastAPI or similar frameworks.
• Define clear API contracts, typed request and response models, and maintainable service boundaries.
• Work with PostgreSQL for application data, analytics queries, and product features.
• Build reliable async workflows and backend logic for longer-running tasks where needed.
• Improve operational quality through structured logging, pagination, input validation, and sensible safeguards.
• Ensure robust code quality via unit tests and SOLID engineering patterns.
• Frontend: Build and maintain React + TypeScript applications with strong typing and clean state management.
• Develop product UI for tables, filters, visualizations, and interactive analysis workflows.
• Integrate frontend applications with REST APIs and incremental or live backend responses where useful.
• Focus on usability, responsiveness, and maintainable component design.
• Use end-to-end testing for important frontend flows when making substantial UI changes.
• Debug issues across client and server boundaries and improve reliability over time.

Skills

Python backend

TypeScript

React

SQL

PostgreSQL

API design

WebSockets

End-to-end ownership

Tools

FastAPI

React

PostgreSQL

REST APIs

WebSockets

Job description

PathGen is seeking a Full Stack Engineer for a full-time hybrid role based in Singapore, with flexibility for partial remote work.

This role is for an engineer who is comfortable building across both backend and frontend systems. You will work on product features end to end, from API design and data models through to user-facing applications and interactive analytics.

Responsibilities:

• Design and build Python backend services, primarily using FastAPI or similar frameworks.
• Define clear API contracts, typed request and response models, and maintainable service boundaries.
• Work with PostgreSQL for application data, analytics queries, and product features.
• Build reliable async workflows and backend logic for longer-running tasks where needed.
• Improve operational quality through structured logging, pagination, input validation, and sensible safeguards.
• Ensure robust code quality via unit tests and SOLID engineering patterns.

Frontend:

• Build and maintain React + TypeScript applications with strong typing and clean state management.
• Develop product UI for tables, filters, visualizations, and interactive analysis workflows.
• Integrate frontend applications with REST APIs and incremental or live backend responses where useful.
• Focus on usability, responsiveness, and maintainable component design.
• Use end-to-end testing for important frontend flows when making substantial UI changes.
• Debug issues across client and server boundaries and improve reliability over time.

Required Qualifications:

• Strong Python experience building production backend services.
• Strong TypeScript and React experience building web applications.
• Solid SQL and PostgreSQL fundamentals.
• Experience designing and consuming APIs in production systems.
• Good engineering judgment around maintainability, correctness, and performance.
• Comfort working across the stack and taking ownership of features end to end.
• Clear communication and a pragmatic, product-oriented mindset.
• Familiarity with WebSockets or other incremental data patterns.

Nice to Have:

• Experience with maps, geospatial data, or geospatial UI patterns.
• Familiarity with pgvector, vector search (RAG), or data-heavy applications.
• Experience with interactive analytics, charts, or large tabular interfaces.
• Exposure to health, biological, or bioinformatics products.

Desired Personal Attributes:

• Excellent communication and teamwork skills.
• Ability to work independently and proactively.
• Passionate about leveraging technology to improve public health outcomes.

What We Offer:

• An opportunity to work at the forefront of technology, genomics and public health for genuine positive impact in the APAC region.
• Collaborative and interdisciplinary team environment.
• Professional growth through involvement in cutting-edge projects and technologies.
• Flexible hybrid work arrangement.

Join us to help operationalize the future of genomic intelligence and deploy real-world AI tools that matter.