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 Developer Engineer
- Awarded the Engineering Excellence Award for contributions to our suite of applications.
- Working on micro-frontend architecture using React.js and Angular.
- Building a user feedback mechanism with LLM based filtering, summarization and report generation.
- 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.
Aug 2023 – Present
UBS - Summer Intern
- 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).
Apr 2022 – Jun 2022
Stratzy - Fullstack Developer Intern
- 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.
Mar 2023 – Jul 2023
Posha - Flutter Developer Intern
- 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.
Jul 2021 – Feb 2022
Bombay Teacher's Training College (BTTC) - Android Developer Intern
- 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.
July 2020 - August 2020
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
Flutter and Dart Basics at CodeVengers Flutter and Dart Basics
~ Believe in You ~