Backend Developer – Node.js / TypeScript / GraphQL / MongoDB

Job Title

We’re seeking an experienced Backend Developer (3–5 years) who is fluent in Node.js, TypeScript, GraphQL, and MongoDB, to build powerful, AI-enabled backend systems. If you architect APIs like a pro, enjoy working with data-rich real-time apps, and want to shape the future of EHRs, automation, and financial tech — let’s talk.

This role is based in Jamshedpur, with flexibility for hybrid or partial remote.

 Key Responsibilities Development & API Engineering

• Design, develop, and maintain GraphQL APIs and RESTful services using Node.js and TypeScript
• Build scalable, cloud-native backend systems using MongoDB, Redis, and message queues
• Implement real-time capabilities using WebSockets, pub/sub, or GraphQL subscriptions
• Create modular, well-documented, and reusable services in a microservices environment
• Work with schema-first API design and GraphQL federation patterns

 Data & Security

• Manage large-scale data storage, indexing, and query optimization with MongoDB
• Secure data handling and authentication/authorization using OAuth 2.0 / JWT / OpenID Connect
• Implement RBAC/ABAC patterns and access control over sensitive data (PHI, crypto data, etc.)
• Follow HIPAA-compliant backend design principles when handling healthcare workflows
• Create audit trails, activity logs, and data protection mechanisms

 Code Quality & DevOps

• Write clean, type-safe TypeScript code with strict linting and validation
• Implement unit, integration, and E2E tests using Jest, Mocha, or Supertest
• Design backend systems using domain-driven design (DDD), event sourcing, and CQRS
• Maintain CI/CD pipelines for testing, staging, and production deployments
• Collaborate with DevOps teams on containerized deployment strategies using Docker and Kubernetes

Collaboration & Product Integration

• Partner with frontend and mobile teams to align API behavior with UI/UX flows
• Collaborate with data science teams to expose GraphQL endpoints for AI consumption
• Participate in architecture decisions, grooming, sprint reviews, and retrospectives
• Document API specifications using OpenAPI, GraphQL SDL, or Postman collections

 Required Qualifications Technical Skills

• 3–5 years of backend experience in Node.js with:
• 2+ years in TypeScript (strict typing and interfaces)
• GraphQL schema + resolver development
• MongoDB (designing indexes, aggregation pipelines, schema modeling)
• Experience with Redis, RabbitMQ, Kafka, or NATS for queuing/pub-sub
• REST API design, Swagger/OpenAPI familiarity
• Git-based workflows and modern branching strategies

Core Competencies

• Proficiency with NestJS, Apollo Server, or Express-based GraphQL frameworks
• Familiar with NoSQL data modeling, horizontal scaling, and sharded clusters
• Understanding of GraphQL security best practices (depth limits, complexity analysis)
• Knowledge of schema stitching, data loaders, GraphQL federation
• Experience with real-time data delivery, caching, and webhooks

Preferred Qualifications

• Experience in healthcare tech or fintech platforms
• Knowledge of HIPAA, HITRUST, and compliance-driven architecture
• Familiarity with FHIR, HL7, and other health data standards
• Experience with OAuth 2.0, OpenID Connect, passport.js
• Familiarity with Serverless architecture (AWS Lambda, GCP Cloud Functions)
• Experience using GraphQL monitoring tools like Apollo Studio or Hive
• Comfort with ElasticSearch, TimescaleDB, or OpenTelemetry
• Contributions to GraphQL, TypeScript, or NestJS open-source projects

Technical Environment

• Languages: TypeScript (strict mode), Node.js (18+)
• Frameworks: NestJS, Apollo Server, Express.js
• Data: MongoDB (Replica sets), Redis, PostgreSQL (optional)
• Messaging: Kafka, RabbitMQ, or NATS
• Auth: OAuth2, JWT, OpenID Connect
• Cloud: AWS (Lambda, ECS, S3), GCP, or Azure
• Testing: Jest, Supertest, Cypress (API-level)
• Containerization: Docker, Kubernetes
• CI/CD: GitHub Actions, GitLab CI, Bitbucket Pipelines
• Monitoring: Prometheus, Grafana, ELK Stack, OpenTelemetry

About Aarna Tech Consultants Pvt. Ltd. (Atcuality)

At Atcuality, we’re building the AI-native backend that powers tomorrow’s tech — across digital health, fintech, and developer tools. We believe in prompt-first, modular system design and use the best of LLMs, microservices, and real-time APIs to architect composable platforms.

Current Systems Include:

• Next-gen EHR platforms integrated with AI workflows and FHIR backends
• Multi-agent automation engines with real-time data orchestration
• AI-enhanced crypto trading tools and compliance-aware transaction systems
• Autonomous prompt-to-app coding tools with backend generation support

If you’re building with Clade Code, Gemini CLI, or ChatGPT, you’re already one of us.

What We Offer

• Competitive salary based on skills and contributions
• Equity participation and performance bonuses
• Modern hybrid culture (HQ in Jamshedpur, remote options)
• Learning budgets for courses, certifications, and conferences
• High-growth AI startup environment with real-world impact
• Healthcare, vision, and wellness perks
• Paid time off, parental leave, and flexible scheduling

Application Process

Please send the following to  career@atcuality.com:

• Updated resume (Node.js + GraphQL + MongoDB experience)
• Portfolio/GitHub link with backend samples or live APIs
• Short cover letter or AI-generated pitch
• Optional: GraphQL SDL, resolver code, or project architecture diagram

Interview Flow

• Screening call (30 mins – intro + intent)
• Take-home project or live coding
• Deep dive (GraphQL, MongoDB, TypeScript – 90 mins)
• Architecture/system design interview (45–60 mins)
• Final fit discussion with the CTO or Founder
• Reference check + offer

Join us at Atcuality and help build the backends that power AI-native products for a smarter, more connected world.

We are an equal opportunity employer and embrace diversity in all forms.