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Nemanja Grujic
www.nemanja.grujic.rs | nemanjag3005@gmail.com
Product-minded full-stack engineer who takes products from early ideas through design, development and launch. Experience across scientific software and consumer products, building for web and native iOS.
EXPERIENCE
Full-Stack Engineer
Packz, NYC
- Joined as the second engineering hire and built the initial web app, taking the customer-facing product from development to launch for a platform now serving hundreds of thousands of users.
- Led and implemented a major web app redesign, reworking core user journeys as the platform grew.
- Expanded the platform with features built end to end across backend services, web and native iOS.
- Took on native iOS development in Swift, delivering mobile features alongside continued ownership of the web app and backend.
Key technologies: TypeScript, React, Hono, PostgreSQL, Swift, SwiftUI, AWS
Full-Stack Engineer
ReactWise, Cambridge · YC S24
- Led development of all LLM-powered features, helping customers find relevant scientific literature, import experimental data and identify promising experiments.
- Built Vera, an agentic chatbot that helps chemists interact with the platform through natural language.
- Contributed to major platform redesigns and UX improvements, simplifying complex scientific workflows.
- Built a full admin dashboard, giving internal teams a dedicated interface to manage the platform.
Key technologies: React, TypeScript, Python, FastAPI, PostgreSQL, AWS Bedrock
Full-Stack Engineer
S-Cube, London
- Developed full-stack software at an Imperial-based deeptech startup building FWI/XWI algorithms for subsurface resource exploration.
- Developed an agentic chatbot and LLM-powered scientific workflows that helped secure new client contracts.
- Refactored and streamlined a legacy Angular dashboard for massive geophysical datasets, simplifying data exploration for internal researchers and external clients.
- Worked directly with algorithm engineers and domain scientists to rapidly ship features and tailor data visualization workflows.
- Maintained and scaled backend infrastructure supporting thousands of cloud workers and multi-terabyte datasets, optimizing APIs and performance-critical paths.
Key technologies: Angular, Django, TypeScript, Python, AWS, D3, RAG, Vector databases
TECHNICAL SKILLS
TypeScript
React
Python
Swift / SwiftUI
PostgreSQL / SQL
AWS
API design
Agentic AI systems
LLM integration
RAG / vector databases
Product & Delivery
Product thinking
UI/UX design
End-to-end ownership
Cross-functional collaboration
LANGUAGES
English
C1 Advanced
German
B2
Serbian
Native
EDUCATION
MSc in Bioinformatics - Imperial College London
BHSC Honors (With Distinction) - Bioinformatics Major, Computer Science Minor - University of Calgary
- Dean's List