Open to opportunities

Rethabile Selebalo

@rethabileselebalo

Message

Senior software engineer specializing in scalable full-stack solutions with cloud and DevOps expertise.

South Africa

Message

What I'm looking for

I am seeking a challenging senior engineering role where I can build scalable systems, mentor teams, leverage cloud and DevOps practices, and contribute to product and architectural decisions.

I am a Senior Software Engineer with over 10 years of experience building scalable, high-performance web applications and backend systems. I specialize in Node.js, TypeScript, React.js, Nest.js, Docker, and AWS, and I consistently deliver optimized, production-ready solutions.

At TFG I designed microservices, implemented containerized deployments on Kubernetes/EKS, and reduced response times by 30% while improving system efficiency by 25%. I also implemented caching layers, CI/CD pipelines, and monitoring solutions to ensure reliability and observability.

Previously I built user-facing applications and management platforms using React, Redux, and TypeScript at FinChatBot and SovTech, integrating third-party APIs, improving user engagement, and ensuring pixel-perfect UX. I have substantial experience in database technologies (MongoDB, PostgreSQL, MySQL) and testing frameworks (Jest, Mocha).

My background includes long-term systems and DHIS2 work for government and health programs, developing data warehouses, custom DHIS2 modules, and training end users. I enjoy mentoring junior engineers and working within agile teams to translate business needs into robust technical solutions.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

TFG (Bash)

Oct 2021 - Present (3 years 11 months)

Developed scalable e-commerce microservices using Node.js and TypeScript, reducing response times by 30% and improving system efficiency by 25%; led junior engineers and implemented CI/CD and observability for production reliability.

Grafana Node TypeScript Docker Kubernetes AWS Redis CI CD Prometheus

Senior Software Engineer

FinChatBot

Oct 2020 - Sep 2021 (11 months)

Built responsive React.js/TypeScript applications and a ChatBot Management Platform that increased user engagement through optimized frontend-backend interactions and improved UX.

React TypeScript Redux REST APIs Git Jest Performance Optimization

Senior Software Engineer

Sovtech

Sep 2019 - Sep 2020 (1 year)

Developed and optimized web applications using React and TypeScript, integrated third-party APIs, and managed AWS infrastructure to improve performance and deployment reliability.

React TypeScript Redux AWS HTML5 CSS3 API Integration Performance Tuning Git

Software Engineer

Autoboys

Aug 2018 - Aug 2019 (1 year)

Delivered business process automation and systems integration solutions, produced high-quality code with unit tests and documentation, and collaborated in weekly sprint deliveries.

C++ASP.NET SQL Server System Integration Unit Testing Debugging Documentation Agile)Business Analysis

Software Developer

Palladium LLC

Aug 2017 - Jul 2018 (11 months)

Developed Windows and web applications, implemented software design components, and maintained technical documentation and unit tests to support project delivery.

ASP.NET C++SQL Server Web Development Unit Testing Debugging Technical Documentation

Software Developer

DHIS2 Health (Ministry of Health work)

Jan 2009 - Jun 2017 (8 years 5 months)

Customized DHIS2, developed a data warehouse and reporting tools, imported legacy data, and built data capture applications to support national health information systems.

DHIS2 JavaScript ASP.NET SQL Server Data Warehousing ETL Reporting Training Health Information Systems

Education

Degrees, certifications, and relevant coursework

National University of Lesotho

Bachelor of Science, Computer Science

2002 - 2007

Completed a Bachelor of Science in Computer Science focused on software development, data systems, and health information systems from August 2002 to May 2007.