SIELAY LTD

Engineering leader. AI systems architect. Shipping at scale.

Available for select work · 2026 London, UK · --:-- GMT v.04 · last shipped today

Twenty-plus years building, leading, and modernising. Now: agent systems, multi-agent architectures, and the unsexy work of getting them to production. Products as proof, not as the story.

Get in touch → See the work
[01 / EXPERTISE]

What we do.

04 areas · 20+ yrs
[01]

Engineering Leadership

Built and scaled teams. Mentored devs from junior to senior. Shipped at scale with small, focused groups. Hiring, organisational design, the boring-good kind of leadership.

Team dynamicsHiringMentoringOrg design
[02]

AI / LLM Systems

Claude API, multi-agent architectures, MCP design. Autonomous delegation, memory, and the un-glamorous wiring that makes agents actually useful in production.

ClaudePythonTypeScriptFastifySupabaseMCP
[03]

Legacy Modernisation

CMS platforms, complex system remediation, shipping without rewrite. Understand the business first; modernise incrementally; keep the lights on the whole way.

PostgreSQLNode.jsTypeScriptAWSDocker
[04]

20+ Years Shipping

Languages, databases, clouds. Whatever the stack, the work is the same: understand the problem, write the smallest thing that solves it, ship it, learn from it.

JS/TSPythonPHPJavaAWSGCPPostgresRedisES
[02 / WORK]

Proof points.

4 products · live + dev
[ scrn-01 ]

DILO

In production

Team scaling agent. Runs standups, scales team knowledge, enables async collaboration without the meeting tax.

Internal · 2026–
[ scrn-02 ] potem://agent/main PLAN MEM RES SCHED EXEC 8 agents · 142 tasks · 96% uptime

Potem

In production

Personal OS. Multi-agent task management — scheduling, memory, research, health, coordination. Fine tuned to a single user: me.

Personal · 2026–
[ scrn-03 ] DISCOVERED BY CLAUDE ↗ 120 GPT ↗ 98 GEMINI ↗ 76 PERPLEXITY ↗ 54 AGENT IMPRESSIONS / 30D

BookSellr

Case study

Make your book discoverable by AI agents. Structured metadata, agent-ready feeds.

B2B · booksellr.com Visit →
[ scrn-04 ] CASE · CP-2024-0418-A Distance: 0.7m · Speed: 38mph · Limit: 30 EVIDENCE SUBMITTED

ClosePass

Case study

Clarify your reports to the police with visual distance presentations. Helping victims of crime communicate effectively with law enforcement.

Civic · closepass.app Visit →
[03 / VOICES]

What people say.

2 testimonials

“In hiring Łukasz at Enigma, I always anticipated he would be an excellent software developer and was never disappointed — but what I really admire having worked with him for over a year was the leadership, team-mindedness, enthusiasm, business focus and management ability he brought with him. He is tremendously talented, productive & transparent, and I would recommend him as a developer, employee, colleague and as a person.”

01 / 02

Rob McCradle

Hiring manager · Enigma via LinkedIn

“A great innovator and someone who has a passion for what he does. Still young and rough around the edges and sometimes needs to be a bit more focused, but he is working on that I will do my best to help him with that. A lot of potential, if channeled in the right way with great ideas on how to make things cutting edge. A valued member of the team.”

02 / 02

Peter Ward

Co-Founder & CEO of Humanity - On a mission to extend healthspan. Founder. CEO. Investor. Board Member. Speaker. Community Builder. via LinkedIn
[04 / CONTACT]

Let's talk.

Replies within 48h

Engineering, AI, or a system that won't behave?

Best for: agent architecture reviews, legacy system rescue, scaling a small team that ships. Not for: anything I can't do well. Drop a note and I'll come back to you.