Backend performance and reliability
Investigating slow APIs, PostgreSQL bottlenecks, unreliable background jobs, and recurring production failures.
Founder-led backend & infrastructure consultancy · Accepting new engagements
Backend and infrastructure engineering for dependable products.
Hakase Development Studio is my independent engineering consultancy. I work directly with founders and engineering teams from scoping and investigation through implementation and handoff.
Where I can help
Problems I help solve.
Payments and backend systems
Designing and improving payment integrations, webhook processing, ledgers, reconciliation, and transaction workflows.
Infrastructure and observability
Improving cloud infrastructure, deployment pipelines, monitoring, and tracing so teams can diagnose production problems and operate their systems with confidence.
Who you’ll work with
Francis Sunday
I’m Francis, the engineer behind Hakase Development Studio, based in Lagos, Nigeria. I help teams build dependable backend systems and resolve production issues. Before starting the consultancy, I built payments infrastructure at Nala.
Writing, projects & backgroundHow engagements work
I lead the work directly.
I work with a small number of clients at a time, leading architecture and engineering directly. I remain hands-on with implementation and bring in specialist contractors when the scope requires it.
- 01
You share the system, problem, and constraints.
- 02
We agree on a focused scope and success criteria.
- 03
I investigate and implement the agreed changes.
- 04
I verify the results and document how to maintain them.
Have a backend or infrastructure problem you need help with?
Send a short description of your system, what’s going wrong or what you’re planning, and any timeline you’re working towards.
[email protected]