Kenneth Simpson
Backend Engineer
Salary / Daily rate
Accra, Ghana
Permanent contract
Can come onsite
Skills
About me
Intro
Senior Backend Engineer with strong experience building secure and scalable financial systems and payment infrastructure. Specialized in Golang microservices, transaction processing systems, and fintech integrations including payment gateways, crypto services, and trading platforms. Experienced designing REST/gRPC APIs, event-driven architectures, and distributed systems using Kafka, RabbitMQ, Redis, and PostgreSQL. Proven ability to build highly available systems, implement secure financial workflows, and collaborate with product and compliance teams to deliver reliable fintech platforms.
Work experience
Backend Engineer
May 2023 - Feb 2026
2 years 10 months
– Delivered 22+ secure RESTful APIs using Go and clean architecture, integrating REST and gRPC to reduce third-party payment gateway integration time by 65%. – Implemented encryption, monitoring, and CI/CD pipelines with observability dashboards using Grafana, improving platform security and reliability. – Redesigned PostgreSQL schemas and optimized queries to support real-time analytics and high-volume user account data.
Golang Backend Engineer
RNS.ID
Apr 2023 - Sep 2023
6 months
– Built crypto payment backend services using Gin, REST/gRPC microservices and RabbitMQ queues, processing monthly transactions. – Integrated smart contract ABI interactions and Redis caching for real-time blockchain transaction updates. – Improved API performance and reliability by 60% through CI/CD automation and container orchestration.
Golang Backend Engineer
Marygold & Co
Feb 2022 - Mar 2023
1 year 2 months
– Integrated DriveWealth APIs for stock trading transactions and portfolio management systems. – Implemented Kafka streaming pipelines enabling near real-time portfolio analytics. – Automated trade reconciliation processes improving operational efficiency and regulatory compliance.
Backend Engineer
Subcoin
Dec 2021 - Jan 2022
2 months
– Built Ethereum-powered payment features enabling creator monetization and digital asset transactions. – Implemented walletless P2P payment flows improving payout speed and lowering transaction fees.
Backend Engineer
ZuriHQ
May 2021 - Sep 2021
5 months
– Developed REST APIs for booking and payment processing platforms used by 350+ businesses. – Containerized Django services with Docker and Kubernetes improving scalability and uptime.
Co-Founder & CTO
Bezomoney
Aug 2019 - Jan 2021
1 year 6 months
– Co-founded a digital savings and financial inclusion platform reaching 35K+ users. – Built USSD and wallet infrastructure enabling group savings for underserved communities. – Deployed cloud infrastructure and CI/CD pipelines reducing operational costs by 60%.
Education
MEST Africa
Program, Entrepreneurship & Technology