I will build scalable backend apis for fintech and saas platforms

M
mboya_danroylex
M
mboya_danroylex
Danroylex
build scalable backend apis for fintech and saas platforms
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build scalable backend apis for fintech and saas platforms
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build scalable backend apis for fintech and saas platformsbuild scalable backend apis for fintech and saas platformsbuild scalable backend apis for fintech and saas platformsbuild scalable backend apis for fintech and saas platforms

About this gig

Are you building a payment system, e-commerce backend, or SaaS platform that needs to handle real trafficreliably and fast?

I'm a backend & systems engineer specializing in Go, TypeScript, and Python, with experience building production-grade distributed systems for fintech and retail.

What I build:

REST & GraphQL APIs with clean architecture

Scalable microservices (event-driven, queue-based, or synchronous)

Payment backends (Stripe, M-Pesa, Flutterwave)

E-commerce systems (orders, inventory, fulfillment)

Data pipelines & ETL workflows

Auth systems (JWT, OAuth2, RBAC)

Why clients choose me:

Clean, tested, production-ready code

Strong understanding of business logic

Clear communicationno surprises

Full handover (README + setup guide)

Tech stack:

Go TypeScript Python PostgreSQL Redis Kafka Docker AWS / GCP

Revisions cover adjustments to agreed scope new features or requirement changes are quoted separately.

Whether you're a startup or enterprise team, I deliver systems you can rely on.

  • Expertise

    • Algorithms & Data structures
    • Security
    • Design
    • Databases

  • Programming language

    • Go

  • Frontend framework

    • Flutter

  • Backend framework

    • FastAPI
    • Gin
    • Node.js

Get to know Danroylex

Danroylex
5.0(1)
  • FromKenya
  • Member sinceJul 2020
  • Avg. response time1 hour
  • Last delivery1 year

  • Languages

    English, Swahili
I'm a backend developer & data scientist with 5+ years building production-grade systems for fintech, retail, and SaaS. I specialise in REST API development, microservices architecture, and payment integrations (Stripe, M-Pesa, Flutterwave), as well as machine learning, predictive analytics, and BI dashboards. Clean code. Tested. Fully documented. Strong business logic. Clear communication throughout. Stack: Go · TypeScript · Python · PostgreSQL · Redis · Kafka · Docker · AWS/GCP · Scikit-learn · Power BI Message me before ordering.

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