Portfolio

Adrian
Fitsios

Engineering & Design
About

Simple solutions to hard problems

Good engineering isn't about building the most sophisticated system. It's about understanding the problem deeply enough that the solution feels obvious. I'm not going to build you a spaceship when all you need is a way to get your groceries home.

Expertise

What I Do

Solution Design

Understanding the problem before writing a line of code

Platform & Infrastructure

Cloud-native architecture and developer tooling

Product Engineering

Full-stack systems from prototype to production

Work

Selected Projects

Platform
ModelFlow

Pharma process development platform uniting modeling, simulation, and data integration.

Healthcare
NHS Spine II

England's national health record infrastructure, serving millions of patient queries daily.

Government
Access To Work

The UK's digital service helping disabled people get workplace support.

Connect

Let's Talk

Have something interesting to build? I'm always open to ambitious projects, so tell me about yours.

Get In Touch
Experience
2025-Present
Senior Software Engineer
PolyModels Hub

Designed multi-surface auth with federated SSO and MFA through Cognito. Built ModelFlowSync, a desktop app keeping local file edits audit-ready for pharma compliance. Shaping the platform's Python SDK. Working directly with scientists to build the tooling that lets them author and run their own workflows.

2022-2025
Senior Software Engineer
Netcompany

Cut running costs 50% on England's Covid Pass. Led a team of 8 and delivered an internal management tool. Tech-led the replacement of NHS Spine II's legacy search engine with OpenSearch.

2022
Full-Stack Engineer
Capgemini Invent

Played a key role in rolling out DWP's Access To Work programme. Built GDS-compliant UIs working closely with designers and user research.

2021-2022
Software Engineer
BJSS

Integrated services across an Azure-hosted event-driven stack as part of a large-scale re-platforming programme.

2019-2020
Placement Engineer
BJSS

Built the NHS Buying Catalogue. Rolled out ephemeral environments and switched the team to continuous delivery.

Technical Skills
PythonTypeScriptC#JavaReactNext.jsDjangoSvelteElectronAWSAzureKubernetesTerraformDockerPostgreSQLMongoDBRedisOpenSearchCI/CD