// Service

Izrada custom API i backend-a in London

Remote Custom API/backend razvoj for London clients — fixed price, written scope, source code on your GitHub from day one.

Custom backend sa modernim stack-om (Node/Laravel/FastAPI), REST ili GraphQL API, scalable arhitektura, OpenAPI dokumentacija, Docker deploy. Working remote with London clients in United Kingdom — typical industries: fintech (London FinTech ecosystem), fashion (LFW, premium British brands), advertising (Soho creative), premium e-commerce. API endpoints sa OpenAPI dokumentacijom, baza (Postgres/MySQL), auth (JWT/OAuth2), rate limiting, monitoring, automated tests, Docker compose.

What you get

API endpoints sa OpenAPI dokumentacijom, baza (Postgres/MySQL), auth (JWT/OAuth2), rate limiting, monitoring, automated tests, Docker compose. All source code on your GitHub from day one — no licensing strings.

How I work with London clients

Fully remote work, async-first via Slack/Linear/email, sync calls over Google Meet or Zoom during your business hours. I'm based in Leskovac (southern Serbia) and don't travel for projects — modern video tooling handles the discovery and review meetings comfortably. Fixed-price contract, 50/50 payment split, source on your GitHub from day one.

Pricing band

Project budgets vary widely depending on scope — from around €200 for the smallest single-page builds to €15,000 for complex multi-month engagements. For Custom API/backend razvoj specifically, scope is what drives the number. Send a brief and you get a written fixed-price quote within 3-5 days.

Industries that fit

Most relevant London verticals for this service: fintech (London FinTech ecosystem), fashion (LFW, premium British brands), advertising (Soho creative), premium e-commerce. largest English-speaking startup market in Europe. Time-zone overlap is full business day with Belgrade.

Frequently asked questions

How does payment work for United Kingdom clients?
SEPA EUR transfer for EU clients, international wire for everyone else, or stablecoin (USDC) if you prefer crypto. We agree the currency in the quote — mostly EUR.
What's the time-zone overlap?
I'm based in southern Serbia (UTC+1, same as CET). Overlap with United Kingdom depends on your zone but most of the work is async via Slack/email anyway, so time difference rarely blocks anything.
Do you offer a fixed price?
Yes — fixed-price contracts only for projects. 50% on signing, 50% on delivery. Source code on your GitHub from day one. No hourly retainers unless the scope is genuinely undefined.
How long does delivery take?
Standard projects: 4-6 weeks from signed contract to live launch. Larger scope (e-commerce with many SKUs, custom apps, multi-language sites): 8-12 weeks. Faster turnaround possible for smaller scope.

Ready to get started?

Tell me what you need — fixed price, fixed deadline, no surprises.

Pozovi