Senior developer and architect with 15+ years hands-on across enterprise Drupal, .NET, and AI mobile MVPs. Founder and Director of Turczynski Interactive Ltd. Past delivery includes Cancer Research UK, the Francis Crick Institute, and BBC Studios at Catch Digital, and Transitions Lenses, the International AIDS Society, and EASL at Enovation Solutions. Currently Senior Developer at MSD Animal Health.
What I do, and how
I’m a senior developer and architect with 15+ years hands-on. Founder and Director of Turczynski Interactive Ltd, based in London. Past delivery for Cancer Research UK, the Francis Crick Institute, BBC Studios (BBC Good Food), and Foundry Visionmongers (Nuke and Katana) — via Catch Digital (Technical Director, 2015–2019) and Enovation Solutions (Drupal Architect, 2020–2024). Currently Senior Developer at MSD Animal Health.
Core specialisms
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Fractional CTO and Technical Director. Architecture roadmaps, hiring panels, vendor selection, and board-level technical communication. From £1,000/day; from £3,000/month for a 3–5 day retainer. See the fractional CTO pillar for detail.
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Drupal 8–11 consultancy. Enterprise architecture, Drupal 7 EOL migrations, performance work, and security audits. Active drupal.org contributor since 2010 — drupal.org/u/Turek.
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.NET and C# development. ASP.NET Core back-ends, MSSQL data platforms, integration work, and the boring DevOps that keeps it running. Current MSD Animal Health work spans large-scale C# systems and reporting tooling.
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AI mobile MVPs and production RAG. End-to-end build of AI-grounded applications, from embedding pipelines to evaluation harnesses. First shipping app: Sedno — an AI-powered symptom journal approved by Apple App Store and Google Play.
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Regulated-sector experience. Current pharma-sector employment translates directly to NHS suppliers, life-sciences scale-ups, and HMRC-style compliance work.
I work best when I’m close to the code and the team shipping it. Weekly progress updates — what shipped, what’s blocked, what’s next. No slide decks without commits behind them.
Career timeline
Senior Developer · MSD Animal Health · Jul 2024 – present
Enterprise C# and .NET work on the Reporting platform — a system that manages animal-tag distribution, ordering, field deployment, and compliance reporting across the programme. PowerShell automation alongside the .NET work, plus upgrades to legacy PHP web platforms feeding the same data estate. Regulated sector; audit-trail discipline by default.
Founder and Director · Turczynski Interactive Ltd · 2019 – present
Independent technology consultancy registered at 124 City Road, London EC1V 2NX (Companies House 12074299). Direct engagements include Sedno (AI-powered mobile symptom journal, approved by Apple and Google) and Urząd Marszałkowski Województwa Zachodniopomorskiego (regional-government drone work). Available for fractional CTO retainers, AI/RAG builds, Drupal consultancy, and .NET / C# development.
Senior Drupal Architect · Enovation Solutions · 2020 – 2024 (Dublin)
Senior Drupal Architect at Enovation Solutions in Dublin (2020–2024). Built a single custom Drupal distribution on Open Social, integrated with Moodle LMS as the learning platform, with bespoke Google Tag Manager and Google Analytics event tracking — then rolled it out across four international clients: Transitions Lenses (US, optical), the International AIDS Society (IAS) (global health, Geneva-headquartered), the Gaelic Athletic Association (GAA) (Ireland’s largest sporting organisation), and EASL — the Home of Hepatology (European Association for the Study of the Liver). Architecture, integrations, and senior delivery against member-platform and learning-platform requirements. Led a team of two developers across the engagements. Also: performance work, advanced Solr search, SSO, Looker Studio reporting, mentoring of junior and senior staff.
Technical Director · Catch Digital · 2015 – 2019 (London)
Agency leadership over a distributed team of more than ten developers across London and Madrid. Defined technologies, processes, and DevOps strategy (Jenkins, Ansible, Vagrant, Docker). Senior delivery to Cancer Research UK, the Francis Crick Institute, BBC Studios (BBC Good Food), Foundry Visionmongers (Nuke and Katana), and Chelsea Barracks. Technical due diligence for agency-side acquisitions.
Earlier (2008–2015)
Drupal 6/7 architecture and senior development across Polish and UK agencies, including Tag Worldwide / Williams Lea Tag in London (Senior PHP Developer, 2011–2014; digital publishing for a major UK bank, plus Facebook campaigns for Phones 4U, Tesco, and Argos) and MSdV Services in the Netherlands (Drupal Developer, 2020 contract on Transkripto.de and Uitgetypt.nl). Earlier still: Byss.pl in Szczecin (Web Developer, 2006–2011) — high-traffic PHP and MySQL, custom Drupal modules and themes, and the foundation work that turned into 15+ years on the platform.
A note on framing: the Catch Digital engagements above were delivered while I was Technical Director at Catch Digital (2015–2019). The Enovation Solutions engagements were delivered in cooperation with Enovation Solutions (2020–2024), where I held a senior Drupal Architect role. None of the above are direct contracts of Turczynski Interactive Ltd — and that distinction matters when verifying credentials. The depth of the work is the same; the legal entity at the time of delivery is on the CV.
Total: 15+ years hands-on, across more than 100 enterprise Drupal sites and a parallel decade of .NET and PHP delivery.
Technical specialisms
| Area | Specific experience | Example deliverables |
|---|---|---|
| Fractional CTO | Architecture reviews, hiring panels, technology roadmaps, board-level technical communication. | Sedno engineering leadership; available for retainer engagements. |
| Drupal | 8–11 architecture, D7 EOL migrations, Open Social distributions, Moodle integrations, Solr search, performance work, headless / decoupled. | Francis Crick Institute and BBC Good Food at Catch Digital; Transitions Lenses, International AIDS Society, GAA, and EASL at Enovation Solutions. |
| .NET / C# | ASP.NET Core, EF Core, MSSQL, Azure, Semantic Kernel, legacy modernisation. | MSD Animal Health Reporting platform; Sedno back-end (ASP.NET Core hosted in EU). |
| AI systems | RAG pipelines, agentic workflows, evaluation harnesses, tiered-model orchestration. | Sedno — AI symptom journal approved by Apple App Store and Google Play. |
| DevOps | Docker, Jenkins CI/CD, Ansible, PowerShell. | Multi-region Drupal deployments at Catch Digital; .NET container orchestration at MSD. |
drupal.org contributions — drupal.org/u/Turek. Active since 2010.
Proof points
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Named institutional clients across two tiers. UK enterprise (Cancer Research UK, the Francis Crick Institute, BBC Studios with BBC Good Food, Foundry Visionmongers, Chelsea Barracks) at Catch Digital, 2015–2019. International (Transitions Lenses, the International AIDS Society, the Gaelic Athletic Association, EASL) at Enovation Solutions, 2020–2024. Both agencies still operating; names verifiable.
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Production AI shipping — Sedno: AI-powered symptom journal with a retrieval-grounded back-end and an evaluation harness. Approved by Apple App Store and Google Play; release imminent.
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Drupal 7 EOL fluency — Active during and after the 5 January 2025 EOL deadline. Migrations across the Enovation Solutions client base.
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Regulated-sector role — Currently at MSD Animal Health on enterprise C# systems with audit-trail discipline. Translates directly to NHS suppliers, life-sciences scale-ups, and HMRC-style compliance.
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15+ years on Drupal — From Drupal 6 agency work in 2008 through Drupal 11 enterprise architecture in 2026. drupal.org commit graph public.
How I work
Outcomes. Architecture that holds up under load. Code that doesn’t break in production. Decisions that save money over the lifetime of the system, not just at the point of signing.
No process theatre. Weekly written updates: what shipped, what’s blocked, what’s next. Three lines, not three slides. Quarterly reviews exist; they don’t replace the weekly cadence.
Code alongside the team. Pair-programming, code review, real pull requests against the team’s repository. The architecture is in the diagrams; the architecture is also in the merge history.
Two registers. Engineering depth for the team; business impact for the board. No translation layer; one person, one bill, both registers.
Hands close to the work. I write code daily across the engagements I take. Senior consultants who haven’t shipped a pull request in three years drift fast — I don’t.
Personal
Outside the code, I’m a CAA-licensed FPV drone operator. Cinematic aerial and FPV work for tourism, motorsport, real estate, and regional government. Notable client: Urząd Marszałkowski Województwa Zachodniopomorskiego (“Pomorze Zachodnie”) — the West Pomerania regional government in Poland.
Languages: Polish (native), English (fluent), German (basic).
Based in London. Available across the UK and EU.
Turczynski Interactive Ltd · 124 City Road, London EC1V 2NX · UK + EU · Companies House 12074299