About
I'm Otis. I build websites, portals, dashboards and automations for small teams. I'm based in Cannock, Staffordshire, and I'm available to organisations across the West Midlands and, remotely, across the UK.
How I got here
I started in operations. For years I managed teams, stock and cash on busy match days, and later worked in NHS hospital logistics, delivering temperature-sensitive medicines and vaccines with full records and secure handovers. That work taught me what a repetitive process costs when it is done by hand every day, and how much it matters that a system does what it says.
In 2023 I completed a diploma in Full Stack Software Development with Predictive Analytics, and since January 2023 I've worked as a freelance Python developer and energy analyst for TeraJoule Energy. There I've built a scenario explorer, contributed to reporting tools and worked on validation checks for energy-system modelling.
Now I bring both sides to small teams. Having managed stock, rotas and cash by hand, I build tools that fit how staff really work, not technology for its own sake.
Background
- 2023 to nowFreelance Python developer and energy analyst, TeraJoule Energy (remote). Data pipelines, scenario dashboards and validation checks for energy-system modelling.
- 2021 to 2023Logistics Assistant (Band 4), University Hospitals Birmingham NHS Foundation Trust. Cold-chain deliveries of medicines and vaccines, clinical supplies and urgent ward and theatre requests. Also supported high-volume COVID vaccination sessions.
- 2020 to 2021Concierge and facilities support. Resident support and records, plus network equipment set-up, backups and PC fault diagnosis.
- 2010 to 2022Stand manager and supervisor, Birmingham City Football Club (match days). Coordinated supervisors and 50+ staff, stock, cash reconciliation and incident reporting.
Qualifications
- Diploma in Full Stack Software Development (specialism: Predictive Analytics), Code Institute, 2023. Credit-rated by the University of the West of Scotland at SCQF Level 8, 60 credits.
- Boomi Professional Integration Developer certification, valid April 2026 to April 2028.
- Certificate of Higher Education (Health Care), Birmingham City University, 2013.
Tools I use
- Languages
- Python, TypeScript, JavaScript, SQL, HTML and CSS
- Data
- pandas, PyArrow and Parquet, PostgreSQL, SQLite, validation and ETL pipelines
- Web and apps
- React and Next.js, Streamlit, FastAPI, Django, Plotly, Astro
- Cloud
- AWS S3 and EC2, Docker, Vercel, GitHub Actions
- AI and automation
- OpenAI, Anthropic and Gemini integrations, retrieval over documents, n8n, Boomi
How I work
- Start from the problem. Where it helps, we agree a simple baseline and a way to check whether the change has worked.
- The smallest useful fix. One problem solved well beats a big system nobody uses.
- Agreed steps. We agree the scope and review points before work starts, and nothing goes live without your sign-off.
- Documented handover. I write the handover so your team, or another developer, can take it forward, or I'll look after it.
Let's talk.
No sales deck. Twenty minutes to look at what's slowing you down.