Selected work
Systems where getting it wrong is expensive.
A selection from 32 engagements as an independent architect, at a 100% job success score — banking, payments, brokerage, identity, and AI.
- 20+ yrs
- building & stabilizing systems
- 32
- engagements as an independent architect
- 100%
- job success score
työ
AI communication hub: pulls messages from customers, colleagues, and partners into one place, drafts a framed reply, and keeps a human in the loop. Built in Finland.
TELOS
Structured synthesis, decision support, and report generation — with reliability, observability, and controlled AI behavior as first-class concerns.
referensipalvelu.fi
Verification and reference-intelligence platform balancing automation with traceability and data-quality constraints.
Brontie.ie
End-to-end design and delivery of a customer-facing digital payment platform, including AI-assisted development workflows and production stabilization.
Boursam (NICI Brokerage)
Production-grade online stock-brokerage platform — Java/Spring Boot microservices, deterministic transaction flows, OAuth2 identity, ETL data warehouse, strong auditability.
3S Swiss Solar Solutions
Set up and aligned the PMO, IT department, and software/data teams; led delivery of transformation and growth programs.
What clients say
Verbatim from Upwork, where I'm Expert-Vetted with 100% job success.
"He understood our entire project, with all its complexity, in 7 minutes — it usually takes 30 to 90 minutes to fully understand it. What a solution architect, literally the GOAT. I'm writing this from my heart: he had a real impact on our entire company."
"Sina was more than an experienced professional — he was a mentor. He provided a great explanation and was able to simplify complex information. His communication was top-notch."
"His strong technical background and deep experience meant I had to spend very little time explaining what I needed. He delivered a high-quality plan in very little time."
"He understood the concept straight away and quickly found ways to simplify things — instead of just stitching tools together, he swapped them for cleaner solutions that worked better overall."
"We expected it to take two to three months. Thanks to Sina's experience, we now have a clear action plan — after only three online meetings."
"He worked brilliantly through the ambiguous detail at the start and eventually delivered a strategy brief. Great attitude — highly recommend."
"Sina is not just a project manager — he gives advice and solutions, helps with tools and methods, and has a certain humour and spirit that makes working with him very smooth."
"He is not only the best person I have ever hired, he has become a friend. Don't miss out on this diamond in the rough."