Lead/Senior Software Engineer

I buildproductsthat matter.

Lead/Senior Software Engineer with 10 years' experience across Tech: Finance, Property, Health, and Gambling. Self-taught developer with a Mathematics degree. Proven track record in leading greenfield projects, resolving legacy tech debt, and deploying scalable backend systems.

01About
Abel Ghebrezadik
Abel Ghebrezadik

Building for 10+ years.

Lead/Senior Software Engineer based in London with 10 years' experience across Finance, Property, Health, and Gambling.

2025 — Present

Arena Entertainment

Full Stack Developer

Crypto gambling platform.

Apr — Jul 2025

Betmate

Lead/Senior Software Engineer

Multiplayer sports betting platform.

Dec 2024 — Feb 2025

NHS England

Full Stack Software Engineer

National healthcare service.

Apr — Jul 2024

Fvtvre

Senior Software Engineer

KSA-based PropTech startup.

Aug 2021 — Apr 2024

SalaryFinance

Senior Software Engineer

Credit facility platform.

May 2018 — Apr 2021

Optal (acquired by Wex)

Senior/Mid-Level Software Engineer

e-Payments platform.

May 2016 — May 2018

London Metal Exchange

Junior Software Engineer (via FDM Group)

International financial services.

02Experience

Where I've built things.

AE
Dec 2025 — Present

Arena Entertainment

Full Stack Developer

Crypto gambling platform. Refactoring TypeScript adhering to big O notation. 50% improvement in Snowflake and MySQL queries. Reduced API latency by up to 8s with Lambda warm-up pings and concurrency (94% hit rate). Enhanced Redis with batch pipelines. Rebuilt data tables with keyset/cursor pagination. Created automation app integrating Playwright, Bitbucket, GitHub, and Jira MCPs for automated UI testing. Building new full-stack app in React and .NET with DDD, CQRS via Kafka, and gRPC interservice comms.

C# / .NETTypeScriptReactSnowflakeRedisKafkagRPCAWS Lambda
BM
Apr 2025 — Jul 2025

Betmate

Lead/Senior Software Engineer

Built a multiplayer game for a leading sports betting company with a £500k jackpot, scaled to 300,000 users. Designed high-performance C# backend on AWS Lambda (serverless). Integrated CockroachDB with Dapper ORM. Built event-driven architecture using SNS and SQS. Implemented CI/CD pipelines with API Gateway, Lambda, and CloudFormation.

C#AWS LambdaCockroachDBDapperSNS/SQSCloudFormation
NH
Dec 2024 — Feb 2025

NHS England

Software Engineer (Contract)

Delivered a Python desktop application using Selenium to automate features in a 3rd-party healthcare application used nationwide by GPs. Automated bulk creation and deletion of templates, removing significant time and labour inefficiency.

PythonSeleniumTkinterCSV
FV
Apr 2024 — Jul 2024

Fvtvre

Senior Software Engineer

Developed a .NET 8 microservice API and Vue.js frontend for a KSA-based PropTech startup. Built a property management product rolled out to EJAR, the Saudi department of rent, enhancing their inventory assessment process.

.NET 8Vue.jsMicroservicesREST APIs
SF
Aug 2021 — Apr 2024

SalaryFinance

Senior Software Engineer

Technical lead on Project Tahiti — saved the company millions in fines. Resolved 500+ production issues in 6 months, 80% faster than other engineers. Built front-end and back-end features, mentored juniors, stepped into Lead Developer duties. Involved in debt sale implementation and presenting to external clients.

C# / .NET 6ReactMSSQLMicroservices
OP
May 2018 — Apr 2021

Optal (acquired by Wex)

Senior Software Engineer

Developed desktop applications for accounts management. Monitored millions of daily transactions from Expedia and Booking.com, reconciled with Ixaris and MasterCard data. Settled across 50+ bank accounts in multiple currencies across 10 international entities.

C# / .NETWinFormsWPFMSSQL
LME
May 2016 — May 2018

London Metal Exchange (via FDM Group)

IT Consultant at FDM Group

Graduate scheme, contracted to London Metal Exchange. Built functionality in C++, Java, and C#. Created a SOAP API for internal data retrieval. Developed MIFID II regulatory reporting APIs. Scripted in Perl, PowerShell, and Batch.

C# / .NETC++JavaPerl
03Projects

Things I've shipped.

ithinkshewifey.com (ITSW)
01

ithinkshewifey.com (ITSW)

Wedding Website Platform

A fully featured wedding website builder with RSVP management, gift registry, guest communication, and beautiful customisable templates.

TypeScriptNext.jsReactPostgreSQLAWS
GPFlow
02

GPFlow

Healthcare Automation Tool

An Electron desktop application that automates Accurx template management for NHS England. Bulk create and delete templates via CSV import with a clean GUI.

ElectronJavaScriptSeleniumCSV
04Skills

My toolkit.

Languages
C#
Java
Python
C++
JavaScript
TypeScript
Go
Perl
C#
Java
Python
C++
JavaScript
TypeScript
Go
Perl
Web & Mobile Frameworks
.NET Core/Framework
React
Vue.js
Node.js
Blazor
Next.js
React Native
Expo
WinForms
.NET Core/Framework
React
Vue.js
Node.js
Blazor
Next.js
React Native
Expo
WinForms
Databases
MSSQL
MySQL
PostgreSQL
MongoDB
Snowflake
CockroachDB
MSSQL
MySQL
PostgreSQL
MongoDB
Snowflake
CockroachDB
Cloud & Hosting
AWS
Azure
Vercel
Railway
Cloudflare
AWS
Azure
Vercel
Railway
Cloudflare
DevOps & Infrastructure
Docker
Terraform
GitHub Actions
ArgoCD
Docker
Terraform
GitHub Actions
ArgoCD
Protocols
gRPC
GraphQL
gRPC
GraphQL
Messaging & Cache
Kafka
Redis
Kafka
Redis
Monitoring
Sentry
Datadog
Sentry
Datadog
Repositories
GitHub
Bitbucket
GitHub
Bitbucket
Project Management
Jira
Confluence
Notion
Jira
Confluence
Notion
IDEs
Visual Studio
VS Code
Cursor
Visual Studio
VS Code
Cursor
AI
Claude AI
ChatGPT
GitHub Copilot
Cursor
Claude AI
ChatGPT
GitHub Copilot
Cursor