Full Stack Developer (3+ years of experience) - Noida

SmartHelio Sarl; New Delhi; On-site; INR 1,200,000 - 1,800,000; Full time

Benefits offered by this job

Competitive remuneration

Opportunity for professional growth

Collaborate with Swiss Research Institutions

Work-life balance

Job summary

A deep-tech startup in New Delhi is seeking a Full Stack Developer with 3+ years of experience to build innovative product features. The ideal candidate should have strong skills in JavaScript, React, Node.js, and be well-versed in backend fundamentals. This role offers competitive compensation, including ESOPs, and opportunities to work on AI-driven platforms and learn alongside global tech researchers.

Qualifications

• 3+ years of proven experience in developing production-grade full-stack applications using the MERN stack.
• Strong ownership and documentation discipline.
• Proven experience of developing scalable, responsive, and highly intuitive UIs and dashboards for time-series analytics.
• Backend fundamentals: API design, auth, caching, pagination, error handling.
• Solid SQL/NoSQL databases; schema design and query optimization.
• Docker, CI/CD and cloud (AWS/Azure).
• Testing with Jest/Playwright/Cypress; unit/integration/e2e tests.
• Proven experience building scalable UIs and dashboards for time-series analytics.
• Ownership, documentation, and code reviews; engineering standards.
• 3+ years in production MERN stack applications.

Responsibilities

• Design and develop full-stack features from spec to production.
• Build responsive, accessible UIs and dashboards for time-series analytics.
• Collaborate with product & data science teams to translate user needs into robust solutions.
• Model and optimize SQL/NoSQL/time-series databases.
• Maintain CI/CD pipelines and deployment hygiene.
• Write unit/integration/e2e tests and contribute to reviews.
• Collaborate with product/DS teams to translate needs into scalable solutions.

Skills

JavaScript/TypeScript

React (hooks)

Node.js (Express)

SQL (PostgreSQL/MySQL)

NoSQL (MongoDB, Redis)

Docker

CI/CD (GitHub Actions/Jenkins)

API design

Testing (Jest/Playwright/Cypress)

UI development

Tools

Docker

AWS/Azure

AWS/Azure

PostgreSQL/MySQL

MongoDB/Redis

Timeseries stores (Timescale/Influx)

Kafka/SQS

REST/GraphQL

Job description

Full Stack Developer (3+ years of experience) - Noida

SmartHelio is a Y Combinator company (YC W22). We are a customer-focused and research-driven deep-tech startup headquartered in Lausanne, Switzerland. We are disrupting conventional energy operations and asset management by bringing AI-driven asset management workflow automation. We enable solar/clean energy companies with automated system performance analysis and decision-intelligence capabilities for smoother asset management and higher profitability. Learn more at www.smarthelio.com

We are hiring a hands-on Full-Stack Developer to build end-to-end product features—intuitive frontends, reliable APIs, and data-intensive backends. You’ll ship production code, collaborate closely with product/design/data teams, and help us scale our platform used by global clean-energy operators.

Qualification

• 1. Strong with JavaScript/TypeScript and modern React (hooks), plus Node.js (Express).
• 2. Experience with one or more: React.Js, Next.js, Redux/Zustand, TanStack Query.
• 3. Data-viz (e.g., D3, Plotly, ECharts), time-series stores (Timescale/Influx/Timestream), and messaging/streaming (Kafka/SQS).
• 4. Backend fundamentals: API design, auth (JWT/OAuth), caching, rate-limiting, pagination, error handling, etc.
• 5. Databases: solid SQL (PostgreSQL/MySQL) and NoSQL (MongoDB and Redis); excellent command over schema design strategies, and query optimization.
• 6. Excellent knowledge of Docker, CI/CD (GitHub Actions/Jenkins) and cloud (AWS/Azure).
• 7. Testing in practice: Must have written unit/integration/e2e tests. Jest/Playwright/Cypress (or similar), and comfort with API & e2e test automation.
• 8. Proven experience of developing scalable, responsive, and highly intuitive UIs and dashboards for time-series analytics, insights visualization, reporting functionalities, and other user workflows. Demonstrate excellent front-end capabilities.
• 9. Strong ownership, documentation discipline, and product mindset. Must have contributed to code reviews, documentation, and engineering standards.
• 10. 3+ years of proven experience in developing production grade full-stack applications using the MERN stack.

Nice to Have

• Experience with microservices, event-driven patterns, and observability (OpenTelemetry/Prometheus/Grafana).
• Domain exposure to energy/IoT, ML/LLM integration, or geospatial/meteorological datasets.

What will we do together?

• Design and develop full-stack features from spec to production (UI, API, data models, tests, and observability).
• Build responsive, accessible UIs and dashboards for time-series analytics, excellent visualization, alerts, and workflows.
• Design and implement secure, and scalable services and REST/GraphQL APIs and maintain their documentation.
• Model and optimize databases (SQL/NoSQL/time-series) for performance and cost.
• Maintain CI/CD pipelines, basic infra configs, and deployment hygiene (feature flags, rollbacks, metrics).
• Write unit/integration/e2e tests; contribute to code reviews, documentation, and engineering standards.
• Collaborate with product & DS teams to translate user needs into robust, scalable solutions.

Job Location

Noida/New Delhi, India.

Compensation & Benefits

• Remuneration: A competitive remuneration with additional ESOPs.
• Opportunity to implement and master AI/LLM/algorithms-based data-intensive advanced analytics/AI platforms.
• Opportunity to learn and master big-data technologies.
• Opportunity to work in a conducive environment that challenges your limits and helps you in improving your capacities.
• Opportunity to work with Swiss Research Institutions and closely collaborate with top global tech researchers.
• Ample opportunities to learn and grow professionally. We conduct monthly professional & personal productivity workshops.
• Conceptualize, write and live your own startup story with full autonomy and under brilliant mentorship.
• The high degree of empathy and work-life balance.

How to Apply

Please fill the forms: https://forms.gle/A4YMG6RHkn87kyQQ7 & https://forms.gle/T2bSTee79N1GKxXa9