About
Crellin Consulting is a London-based technology consultancy building bespoke software for businesses that have outgrown off-the-shelf.
The founder
Sebastian is a senior full-stack engineer who also leads delivery. The person scoping your project is the person who builds it.
He works across Python, Java, JavaScript and SQL, on web and mobile apps, cloud infrastructure and databases.
Principles
Designed for your context, with no off-the-peg compromises.
Designed in from day one, not bolted on before launch.
Architecture that grows with you, without a rebuild.
Clean, tested, documented code your team can own.
Let's talk
Tell us what you need. We'll come back with a clear plan to build it.
