I am Alexander Jensen, an engineer focused on full-stack product delivery and systems integration. I work across product and infrastructure to turn complex requirements into practical, maintainable systems.
A few projects where constraints were messy, requirements moved, and the real work was making systems hold up in practice.
Full-stack admissions platform used in real operations.
production system · actively maintained
Built and maintained the React admin app and Node.js backend.
Delivered CRM integration and admissions workflows, including deal tracking, decision analytics, and email flows.
Rolled out AI Assist, an in-platform copilot for student ops.
Implemented RAG-based profile matching to support admissions decisions.
Kept the system reliable in production as workflows and integrations evolved.
Personal self-hosted infrastructure for running and maintaining daily services.
Built and maintained services including NAS storage, network-wide ad blocking, custom-domain mail hosting, and Home Assistant.
Set up local DNS and service routing to enable stable access without relying on fixed LAN IPs.
inspired by Infinity Loop
A puzzle game about connecting lines into loops
systems / graphics experiment
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Implemented a grid-based puzzle system where players rotate tiles to form valid connections.
Added optional level generation using Wave Function Collapse (WFC) for diverse, constraint-valid layouts.
Interactive COVID-19 analysis across Germany.
data visualization project
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Built an interactive dashboard to explore COVID-19 trends and economic impact, including 7-day incidence maps and demographic breakdowns.
Implemented time-series visualizations with a strong focus on client-side performance and rendering quality.
Apodotiko is an asynchronous serverless federated-learning (FL) strategy built for heterogeneous clients, where slow devices and mixed CPU/GPU hardware usually bottleneck training. It combines efficiency-aware client scoring with fairness boosting and delivered 2.75x average speedup (up to 7.03x) while reducing cold starts by about 4x.
.git | view_arxiv , view_journal
I work at the seam between product and infrastructure, turning ambiguous requirements into maintainable systems teams can ship with confidence.
Designing and delivering features end-to-end, with strong emphasis on predictable APIs, resilient backend logic, and practical frontend UX.
Building internal platforms where process complexity is real: versioned changes, auditability, and gradual evolution under live usage.
Owning runtime behavior with deployment discipline, observability, and failure recovery across cloud and self-hosted environments.
Open to senior engineering roles and architecture-focused collaboration. Reach out for projects where product complexity meets real operational constraints.