Sean Jaeger
Start-up Focused Software Engineer
Building scalable solutions and shipping products that make a difference. Passionate about clean code, user experience, and solving complex problems.
About Me
Hi, I'm Sean, a software engineer with four years of experience specializing in early-stage product-focused startups.
My journey into software engineering began unconventionally – self-teaching JavaScript during my A-levels and landing my first role as a founding engineer at Human Lambdas (Seedcamp backed) at age 18, where I contributed to building distributed data labeling infrastructure.
Since then, I've worked across various exciting projects: developing AI-curated learning platforms at Kimo, creating data analysis UIs at DataZoo, and most recently, leading software engineering initiatives at a stealth startup where I've implemented real-time user engagement systems using Go and Next.js.
I've taken time to deepen my theoretical foundation in Computer Science, particularly focusing on Data Structures & Algorithms. This dedication has led to ranking in the top 4% globally on LeetCode, and achieving top 0.8% placement in recent competitive programming competitions with over 17,000 participants.
My recent work includes developing Eloquent, a cross-platform mobile application for language learning that leverages locally-run LLaMA 3, and contributing to environmental sustainability through Recirculate Systems' innovative reusable cup tracking system.
Outside of tech, I embrace a diverse lifestyle as a Digital Nomad, engaging in Mixed Martial Arts and Chess. I'm driven by tackling complex challenges and creating impactful solutions across various domains.
My Work
Eloquent is an innovative language learning platform that combines spaced repetition with AI-powered definitions, delivering a seamless mobile experience across iOS and Android.
The app leverages locally-run LLaMA 3 to generate comprehensive and contextual definitions, ensuring reliable access to high-quality learning materials without dependency on external APIs.
Built with React Native and Expo, the application emphasizes performance and user experience through fluid animations and gesture-based interactions.
Recirculate Systems revolutionized sustainable consumption through an innovative reusable cup system that eliminated single-use waste while maintaining convenience for both businesses and consumers.
As a key member of the engineering team, I developed full-stack solutions spanning from user-facing applications to complex backend systems handling real-time RFID tracking and payment processing.
The platform integrated seamlessly with existing point-of-sale systems, making adoption frictionless for partner cafes while ensuring accurate tracking and billing.
Human Lambdas, backed by Seedcamp, pioneered Human-in-the-Loop infrastructure for reliable and scalable data labeling, enabling high-quality training data generation for machine learning systems.
As a founding engineer joining at 18, I played a crucial role in building both the TypeScript React frontend and Django backend, establishing core functionality and scalable architecture.
Working in a tight-knit team of four, I contributed across the full stack while participating in strategic decisions that shaped the product and company direction.
During my focused study of Computer Science fundamentals, I immersed myself in competitive programming, tackling complex algorithmic challenges under time constraints.
Through consistent practice and deep understanding of data structures and algorithms, I achieved great success in global competitions, demonstrating both technical proficiency and problem-solving abilities.
This intensive period of study and practice markedly enhanced my ability to architect efficient solutions and quickly master new technologies.