MERN Stack Developer

Solugenix is a leader in IT services, delivering cutting-edge technology solutions, exceptional talent, and managed services to global enterprises. With extensive expertise in highly regulated and complex industries, we are a trusted partner for integrating advanced technologies with streamlined processes. Our solutions drive growth, foster innovation, and ensure compliance providing clients with reliability and a strong competitive edge.

Recognized as a 2024 Top Workplace, Solugenix is proud of its inclusive culture and unwavering commitment to excellence. Our recent expansion, with new offices in the Dominican Republic, Jakarta, and the Philippines, underscores our growing global presence and ability to offer world-class technology solutions. Partnering with Solugenix means more than just business; it means having a dedicated financial client focused on your success in today's fast-evolving digital world.

Job Details :

Job Title : Sr. Software Engineer (MERN+AI)

Work Location : Hyderabad / Indore / Bangalore

Position : Full Time

Work Mode : Hybrid

Experience : 5 - 8 Years

Role Overview :

We are looking for experienced contract engineers to join the team and contribute across the full stack. The role covers both bug fixes and stabilization of existing functionality as well as design and development of new features. Engineers are expected to work independently with minimal oversight, ramp up quickly on the codebase, and hold themselves to a high standard of code quality, test coverage, and security.

Responsibilities :

1. Bug Fixes & Maintenance :

- Investigate, diagnose, and resolve defects across the React frontend and NestJS backend.

- Triage issues surfaced through Datadog APM, log analysis, and user-reported bugs.

- Fix regressions in campaign workflows, Q&A workflows, webhook delivery, and email notifications.

- Ensure all fixes are covered by unit tests and do not reduce overall test coverage.

- Review and address security vulnerabilities aligned with the OWASP Top 10.

2. Feature Development :

- Design and implement new features end-to-end from REST API contracts and MongoDB data models through to React UI components.

- Extend the LangChain AI agent framework with new agent types (e.g., new summarisation strategies, assessment models, or report generators).

- Build new campaign management capabilities, including enhanced progress tracking, filtering, export formats, and notification workflows.

- Develop new UI components (React + SCSS) consistent with existing design patterns.

- Integrate new internal or third-party services through the APIGEE enterprise gateway.

3. Quality & Standards :

- Write and maintain unit tests using Jest and integration tests using Super test.

- Adhere to and enforce ESLint and Prettier code style rules across all contributions.

- Participate in code reviews, providing and receiving constructive feedback.

- Keep JSDoc documentation up to date for all public APIs, services, and agents.

- Follow NX monorepo conventions and NestJS module boundaries.

Tech Stack Summary :

- Frontend : React 18, React Router 6, Okta React, SCSS

- Backend : NestJS 10, Node.js 20, TypeScript 5, Axios, RxJS 7

- AI / LLM : LangChain, OpenAI (via internal APIGEE gateway), Speech-to-Text

- Database : MongoDB 6 (native driver), migrate-mongo

- Infrastructure : Docker, Kubernetes, Helm, NGINX, HashiCorp Vault

- Observability : Datadog APM, Polaris Logger (SIEM)

- Tooling : NX 19, Jest 29, Cypress 13, ESLint 9, Prettier, Webpack, Husky

Mandatory Skills :

- TypeScript (4+ years), JavaScript

- Backend : NestJS (2+ years) modules, guards, interceptors, dependency injection

- Frontend : React 18 (2+ years) hooks, context, React Router

- Database : MongoDB schema design, aggregations, indexing

- Testing : Jest unit and integration testing, mocking patterns

- Auth : OAuth 2.0 / OIDC concepts; experience with JWT-based auth flows

- API Design : RESTful API design; Swagger/OpenAPI documentation

- Tooling : Git, ESLint, Prettier, npm

- AI Tools : Hands-on experience using AI-assisted development tools (e.g., GitHub Copilot, Cursor) to write, review, and debug code faster and more accurately (this is a firm requirement, not optional).

- General : TypeScript monorepo experience; strong debugging skills

Strongly Preferred :

- AI / LLM : LangChain (@langchain/core, @langchain/openai); prompt engineering; agent design

- Monorepo : NX workspace experience (project targets, affected commands, library boundaries)

- Auth Platform : Okta SDK, JWT verification, JWKS, React Okta SDK

- Infrastructure : Docker; Kubernetes basics; Helm chart familiarity

- Observability : Datadog APM and logging (dd-trace)

- Secrets : HashiCorp Vault integration patterns

- API Gateway : APIGEE or similar enterprise API gateway experience

- Styling : SCSS; component-scoped styles

Desired Skills :

- Experience with audio transcription APIs or speech-to-text services.

- Prior work in enterprise internal platforms or financial services technology.

- Familiarity with SIEM logging patterns and security event instrumentation.

- Kubernetes deployment experience including liveness/readiness probes and resource tuning.

Education & Certifications :

- BE / BTech / BSC / MCA

- Key Skills : MERN Stack, AI, Javascript, RAG, LLM, React.js

Skills

MERN Stack, React.js, Node.js, Datadog, TypeScript, Dependency Management Tools, Observability Services, API Gateway, APIGEE