Darshan Rander
Software Developer
About Me
- Software Engineer at UBS , focused on building performant, scalable systems across web and cloud
- Experienced across frontend, backend, and mobile, with a strong bias toward clean architecture and developer experience
- Enjoys working on LLM-powered systems, RAG pipelines, and infrastructure that scales predictably
- Builder at heart—ships side projects, designs systems end-to-end, and optimizes relentlessly
- A community leader and an active community speaker who enjoys sharing learnings
Skills
- Languages: TypeScript, JavaScript, Python, Java, Kotlin, SQL, Golang, Dart, HTML, CSS
- Technologies: LangChain, PostgreSQL, ChromaDB, Angular, Node, React, Next.js, Flutter, Express, Docker, Azure
Experience
UBS
Software Development Engineer 2
Feb 2026 – Present
- Building a LangChain-powered Agentic chatbot for automated employee support and ticket reduction.
- Developed a user feedback mechanism with LLM-based filtering, summarization, and report generation.
UBS
Software Development Engineer
Aug 2023 – Feb 2026
- Awarded the Engineering Excellence Award for contributions to our suite of applications
- Working on micro-frontend architecture using React.js and Angular
- Runner up for UBS Global hackathon'25 on building a fast and light design library and MCP server
- Migrated our frontend applications from on-premises servers to cloud
- Improved application's Time to Interactivity by 30%, by implementing code splitting and reducing bundle size
UBS
Summer Intern
Apr 2022 – Jun 2022
- Developed an Observability stack to monitor and analyze logs of our applications
- Reduced crash recovery and diagnostic time from over 2 hours to under 3 minutes (over 40x reduction)
Stratzy
Fullstack Developer Intern
Mar 2023 – Jul 2023
- Reduced crash rate by 50% using Firebase Crash Analytics to identify and fix crashes
- Spearheaded major refactoring in the codebase to reduce 5000+ compiler warnings to 500
- Built multi-theme support for different tiers of users
- Owned the implementation of the feature for investors to diversify their investments in low and high risk securities
Posha
Flutter Developer Intern
Jul 2021 – Feb 2022
- Developed a Flutter app for mobile and the embedded screen on Julia– Posha’s cutting-edge cooking robot
- Worked with GraphQL for hydrating data and implemented a caching layer improving data loading times
- Utilized Box2D Physics Engine to build a gamified user on-boarding
Bombay Teacher's Training College (BTTC)
Android Developer Intern
July 2020 - August 2020
- Developed an App for BTTC to help them communicate with students
- Lead a team of four Android Developers
- Worked on an Android Project with Firebase
Projects
Wingman
- Engineered a production RAG chatbot with LangChain agents, vector search (Chroma), smart caching, and multi-LLM support to answer queries about portfolios and documents with cited sources and real-time streaming
- Built FastAPI service with persistent conversation threads, automated document ingestion pipeline, and tool-integrated agent architecture for intelligent information retrieval
OwnDB
- Built OwnDB, a backend system for automated PostgreSQL provisioning and lifecycle management on user-owned servers using SSH orchestration
- Integrated HashiCorp Vault for secure secret management and achieved 1.9x cost savings vs AWS RDS by eliminating managed overhead
AntiLang
- An interpreted esoteric programming language written in Go that is logically correct but syntactically reversed
- Developed a custom lexer, parser, and evaluator for the language along with an online code editor embedded with interpreter
- The interpreter is compiled for all platforms and also to natively run in browsers using WASM
PicArch
- Python-based face detection and face similarity search tool
- Integrated InsightFace, a prebuilt model for face encoding and pgvector for efficient storing of image vector embeddings
- Built to search a given face on a photo library based on faces detected
Stocker
- Stocker is an App to manage inventory
- Gives a graphical representation of sales
- Auto-generated invoice sent to the buyer
Talks
~ Believe in You ~