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Hrithik Raj, Tech Lead/Software Engineer

Hrithik Raj

Tech Lead/Software Engineer·Siemens (Contract – Intelizign Lifecycle Pvt Ltd)

India

Bachelor's degree, Computer Science

Work experience

Total years of experience: 4 years, 7 months

Tech Lead/Software Engineer

January 2025 - Present

Siemens (Contract – Intelizign Lifecycle Pvt Ltd)

Pune, India

January 2025 - Present

• Worked on enterprise product Riffynx using React, MeteorJS, Node.js/Express, TypeScript,
supporting 1, 000+ active users across large process libraries in production.
• Built server-side search with pagination and sorting for Process Link Menu, ensuring
stable/deterministic results and better UX for large datasets.
• Implemented DocumentDB-compatible aggregation pipelines for tag-based AND filtering,
resolving process-tag mapping across millions of records with fast query response.
• Improved performance by reducing index footprint (consolidation/reuse) and tuning
selectors/projections; lowered storage cost and index maintenance effort.
• Added input validation, clamping, and early-return guardrails to prevent expensive queries and
protect backend services from misuse.
• Enforced authorisation using query-level permission filters (RBAC-style access control), preventing
unauthorised process visibility.
• Delivered backward-compatible APIs with strong test scenarios for process search, tag search,
combined search, and edge cases, reducing regression risk.
• Built a reusable date-picker component library used by 15+ applications, reducing date defects by
80% and improving developer productivity by 25%.
• Optimised Elasticsearch queries (filters, bool queries, caching, index strategy) for 1, 000+ daily
searches, improving latency and relevance.
• Improved frontend performance using memoisation and code-splitting; reduced bundle size and
improved Core Web Vitals for critical flows.
Company industry:
Automotive Manufacture
Job role:
Engineering

Software Engineer

January 2024 - January 2025

NIIT Limited

Gurgaon, India •Remote

January 2024 - January 2025

• Designed and deployed a Web Accessibility Testing Platform aligned with WCAG 2.2 using
React, Node.js, Express.js, Puppeteer, Cheerio. Integrated Axe Accessibility, Franc, generated
Excel reports using XLSX, and deployed on AWS (EC2, RDS, S3).
• Implemented scalable state management using Redux Toolkit (RTK) and Redux Saga for async
workflows and background tasks; improved UX using Redux Persist and React Hook Form.
• Built a Color Contrast & OCR Testing Tool for EPUB, images, GIFs, notes, and HTML using
TypeScript and Python (PyTesseract); added real-time logs via Socket.io and alerts via
Slack/Teams/Email.
• Improved performance using MongoDB query optimisation and Node.js caching; containerised
using Docker and deployed on Kubernetes (AWS EKS) with 99% uptime.
• Automated workflows via JIRA Due Date Tracker and JIRA Data Miner using React, Node.js,
Express, MySQL, PostgreSQL and JIRA APIs; scheduled jobs with cron, integrated Metabase,
and used AWS RDS/S3.
• Mentored engineers through code reviews and design discussions, improving delivery quality and
maintainability of shared modules.
Company industry:
Primary, Prep, & Secondary School

Software Engineer

January 2020 - January 2022

Tridiagonal Software Private Limited

Pune, India

January 2020 - January 2022

• Engineered a cloud-based platform for MixIT (Chemical Fluids Analysis) using React, Node.js,
Express.js, MongoDB; delivered real-time reactor simulation visualisation using Redux
Toolkit, WebRTC, and CanvasJS.
• Built modular features like Unit Conversion and Language Localisation using Context API,
improving usability for different regions and users.
• Developed a real-time Simulation Dashboard with interactive visuals and live monitoring using
CanvasJS, WebRTC, and WebSockets.
• Improved performance using RTK Query caching, throttling/debouncing, and UI state
management, reducing unnecessary server calls and improving responsiveness.
• Reduced simulation execution time by 60% through refactoring, memoisation, and better code
structure; improved uploads using Multer and added real-time updates using WebSockets.
• Improved UX with dynamic routing, error handling, and lazy loading; strengthened API security
using JWT authentication.
• Ensured availability by configuring MongoDB replica sets to support fault tolerance and stable
deployments.
• Mentored engineers through code reviews and design discussions, improving maintainability and
delivery quality.
• Improved API performance by 40% using query tuning, indexing improvements, and practical
in-memory caching.
Company industry:
Pharmaceutical Manufacturing

Education

Sinhgad Institute of Technology and Science

July 2023

July 2023

Bachelor's degree, Computer Science

India

GPA (percentage): 93%

GPA (percentage): 93%

Final Year Project: Built a full-stack application for [your domain: attendance / task tracking / e-commerce / analytics] using React, Node.js, Express, and MongoDB, with authentication, role-based access, and dashboard reporting. Mini Project: Developed a REST API (CRUD + validations + pagination) and integrated it with a frontend UI; followed clean folder structure, reusable components, and error handling. Database Project: Designed ER diagrams, normalized tables, wrote complex SQL queries, and created reports for [inventory / library / student management] system. Web Development Project: Created a responsive website with HTML, CSS, JavaScript and optimized performance (lazy loading, compress assets, reusable UI). Automation / Utility Tool: Built a small script/tool to automate repetitive tasks like file processing/report generation using Python / Node.js. Cloud/Deployment Exposure: Deployed a project on [AWS / Render / Vercel / Netlify], configured environment variables, and used Git/GitHub for version control. Achievements / Learning Milestones Completed hands-on practice in DSA, OOPs, DBMS, OS, CN, and implemented core concepts through assignments and mini-projects. Improved problem-solving by regularly practicing coding questions and debugging real project issues. Earned certifications/online training in [Web Development / AWS / SQL / React / Node] and applied learnings in projects. Participated in technical events like seminars, workshops, guest lectures, and coding activities conducted by the institute.

Skills

CLOUD COMPUTING
Intermediate
CLOUD COMPUTING
Intermediate
EVENT DRIVEN PROGRAMMING
Intermediate
EVENT DRIVEN PROGRAMMING
Intermediate
FULL STACK DEVELOPMENT
Intermediate
FULL STACK DEVELOPMENT
Intermediate
GITHUB
Intermediate
GITHUB
Intermediate
MICROSERVICES
Intermediate
MICROSERVICES
Intermediate
PERFORMANCE MANAGEMENT
Intermediate
PERFORMANCE MANAGEMENT
Intermediate
SCALABILITY
Intermediate
SCALABILITY
Intermediate
SOFTWARE ENGINEERING
Intermediate
SOFTWARE ENGINEERING
Intermediate
SYSTEMS DESIGN
Intermediate
SYSTEMS DESIGN
Intermediate
WEB APPLICATIONS
Intermediate
WEB APPLICATIONS
Intermediate

Training and Certifications

Certifications
AWS Certified Developer – Associate (DVA-C02)

Hobbies and interests

Chess

Shorput Winner