Full Stack Developer (react)

Full-Stack Software Engineer — React & Node.js

Company: UNIDOC Healthcare Pvt. Ltd.
Location: Ahmedabad (open to in-person)
Type: Full-time / Freelance
Compensation: ₹60,000 – ₹95,000 / month (dependent on experience & scope)

About UNIDOC

UNIDOC builds practical, user-first healthcare software to make care more accessible and records easier to manage. We’re looking for a senior full-stack engineer to own a critical product: a cloud + offline capable web platform that handles medical imaging uploads, viewing/annotation, and secure dataset delivery — end to end.

This role is ideal for a self-starter who can take a product from concept to deployed MVP, who’s comfortable across front-end, back-end, cloud infra (AWS), and delivery.

Role overview (what you’ll build)

You will design, develop and deploy a secure, production-ready platform that lets clinicians (data contributors) upload and annotate imaging files and researchers/partners browse, request, and download those datasets. The product must work online with cloud sync and support offline workflows (local caching / background sync) for low-connectivity settings.

Core requirements:

• Frontend (React + TypeScript preferred): responsive UI, authentication, upload flows, dataset dashboards, and an image viewer for medical images (DICOM / multi-frame support + annotations).
• Backend (Node.js/Express or Node + NestJS; Python option acceptable): robust REST/GraphQL APIs, file upload pipelines, user/role access control, secure download/request flows.
• Storage & infra: AWS (S3 + presigned URLs, IAM, optionally Lambda), PostgreSQL for metadata, Dockerized services, CI/CD and secure deployment (HTTPS, secrets management).
• Offline capability: client-side caching, sync/merge logic, and resilient uploads when connectivity returns.
• End-to-end ownership: ability to handle product design tradeoffs, implement features, test, and deploy — single-handedly if needed.

Responsibilities

• Build the front-end using React (TypeScript preferred), including state management (Redux/Context) and UI components (Material UI or similar).
• Integrate a DICOM/image viewer (Cornerstone.js, OHIF or equivalent) with zoom/pan/window/annotation features.
• Design and implement backend APIs to handle auth (JWT/OAuth), uploads, dataset queries, and role-based access.
• Implement secure, scalable file storage using AWS S3 (or GCS) with presigned uploads/downloads and lifecycle policies.
• Design database schema (PostgreSQL) and write efficient queries; use an ORM (TypeORM/Sequelize/Prisma) where appropriate.
• Add offline-first features: local caching, background uploads, conflict resolution, and sync with cloud.
• Write unit/integration tests and support staging/production deployments (Docker, Cloud, CI).
• Work closely with the founder/clinical lead and AI team to enable hooks for auto-tagging or analysis (calling a Python service or API).
• Maintain security & compliance best practices for handling de-identified medical data.
• Provide technical documentation and assist with user testing/iterations.

Must-have qualifications

• 5+ years professional full-stack experience (production apps).
• Strong React.js experience (TypeScript strongly preferred) and modern frontend tooling.
• Solid backend experience with Node.js + Express/NestJS or Python + FastAPI/Django.
• Hands-on AWS experience: S3, IAM, EC2/ECS/Lambda, RDS (Postgres), and understanding of security patterns.
• Experience designing offline-capable web apps (Service Workers, IndexedDB, background sync, or equivalent).
• Experience with large file upload flows and performance considerations.
• Good knowledge of authentication/authorization (JWT, roles) and secure API design.
• Comfortable owning a project end-to-end and communicating progress clearly in English.

Nice-to-have

• Prior work with medical imaging (DICOM) or experience integrating Cornerstone.js / OHIF.
• Experience with Docker, Kubernetes or containerized deployment.
• Familiarity with HIPAA/GDPR-like data privacy concepts (even if local laws differ).
• Experience integrating simple ML/AI pipelines or calling external inference services.
• UI/UX sensitivity for clinician workflows and low-resource settings.

Perks & Why join UNIDOC

• Work directly with the founder (clinician) and shape product direction.
• Real impact — product will be used to power healthcare research and clinical workflows.
• Flexible hours and a results-driven culture.
• Opportunity to lead future technical hires and grow into a senior engineering role.

How to apply

Email himanshud820@gmail.com with:

• Your resume (PDF).
• A short note (3–6 lines) about why you’re a fit
• Links to portfolio/GitHub or past projects (especially any complex front-ends, large file pipelines, or medical/healthcare projects).
• Your availability over the next 2–3 weeks and expected CTC/month.

Job Types: Full-time, Permanent

Pay: ₹60,000.00 - ₹95,000.00 per month

Work Location: In person

Speak with the employer
+91 7600541303