Sayam Jain
Full Stack Software Engineer · Product Engineer · Applied AI
- contact@sayamjain.com
- sayamjain.com
- linkedin.com/in/sayamjn
- github.com/sayamjn
- Bengaluru, Karnataka
Summary
Product engineer with 3+ years of full stack experience building financial platforms, real time IoT systems and AI powered tools. I work across React and Next.js frontends, Go and Node.js services, data pipelines on PostgreSQL and LLM integrations, and take products from design to production with tests, CI/CD and monitoring.
Experience
SmartRich · Full Stack Developer
- Primary developer of the wealth management dashboard frontend: portfolio, holdings, accounts, instruments and bond views, built with React, TypeScript, TanStack Query and Tailwind CSS.
- Built the statement import screens: uploading statements and reviewing staged entries before they're committed.
- Designed and built the market data pipelines for the product: mutual fund NAVs, exchange prices and corporate actions, security identifiers, benchmark indices, regulatory registries and fund disclosures, in Go, Bash and Python on PostgreSQL.
- Built monitoring and alerting for those pipelines, and ran data quality audits with reviewed, reversible repairs.
- Built the investment policy statement (IPS) wizard and contributed to the Go backend and its API reference.
- Raised engineering quality with Playwright end to end tests, accessibility fixes, verification in the browser and AI assisted review workflows.
EMotorad · Full Stack Developer
- Architected a real time geofencing platform supporting multiple geometry types and concurrent IoT device tracking.
- Streamed IoT telemetry through Apache Kafka and Apache Flink for real time processing.
- Built real time analytics dashboards on AWS Athena for large-scale IoT telemetry.
- Developed OTA firmware deployment microservices.
- Developed AI-powered predictive maintenance features using machine learning.
- Built an LLM-powered customer support assistant on the OpenAI API.
- Built microservices in Go and Node.js with PostgreSQL, following clean, modular architecture.
Key projects
- Built the frontend and server layer of a live vehicle ownership app for Indian motorists: website, onboarding, vehicles, documents, reminders, 51 cost calculators and partner tools for service centres.
- Added Next.js route handlers with HttpOnly cookie sessions in front of a Django API, built the frontend's Docker image, and cut release time from about 32 minutes to about 10.
- Created a private WhatsApp command centre: !today shows who's waiting on me, pending promises and what to reply next.
- Indexed chats locally and ranked them in plain code; only a short candidate list reaches the model, and every claim is stored with its source quote. Backed by 58 Vitest test files and an evaluation runner.
- Engineered a content generator that turns English posts into Nagamese for social media, email and print.
- Designed a translation pipeline that simplifies the English, then adds matching entries from my English–Nagamese dictionary to the Gemini prompt as a glossary.
Skills
- Programming Languages
- TypeScript, JavaScript, Go, Python, SQL
- Frontend
- React, Next.js, TanStack Query, Tailwind CSS, Vite, GSAP, HTML, CSS, Responsive UI
- Backend
- Node.js, Express.js, Go, REST APIs, Microservices
- Data
- PostgreSQL, MongoDB, Redis, Apache Kafka, Apache Flink, Data pipelines
- Cloud & DevOps
- AWS (EKS, EC2, S3, Athena, CloudWatch, IAM), Docker, Kubernetes, Git, GitHub Actions, Jenkins
- Architecture
- Distributed Systems, Event Driven Architecture, System Design, API Design, Real Time Data Processing
- AI & Automation
- OpenAI, Claude, Gemini, MCP, Prompt engineering, LLM integrations, AI Automation, Workflow Automation
- Testing
- Playwright, Vitest
Education
Bachelor of Technology, IT · Oriental Institute of Science and Technology · 7.9 CGPA