Sello Mkantjwa
Software Engineering Lead at Kandua
Gauteng, South Africa
Summary
👤
Senior🎓
Top SchoolSello Mkantjwa is a Senior Software Engineer with 11 years of experience designing and operating scalable, resilient systems across backend, frontend, and infrastructure. He excels in API design and distributed systems, repeatedly solving stability and performance challenges that emerge as platforms grow. At Synatic he led cross-cloud and on-prem migrations, drove platform-wide Infrastructure-as-Code adoption, and built orchestration and consumer patterns for reliable distributed job execution. He prefers owning features end-to-end and has shipped architecture changes that reduced noisy-neighbour impacts, introduced tenant-aware rate limiting, and dramatically cut database load with a Redis-backed batching layer. Beyond coding, he designs hiring exercises and conducts technical interviews, bringing a pragmatic eye to team growth and capability. Based in Johannesburg, he’s currently exploring how AI can reshape developer workflows while continuing to help startups scale as a consultant.
11 years of coding experience
5 years of employment as a software developer
Bsc (Hons), Computer Science, Bsc (Hons), Computer Science at University of the Witwatersrand
English, Sotho
Stackoverflow
1,828reputation
495kreached
67answers
18questions
Github Skills (160)
javascript10
pinterest10
google-search10
vue10
google-chrome-extension10
frontend10
sdk9
aggregates9
postman-collection9
chrome-extension9
postman9
browser-extension9
progressive9
mongodb9
database8
Programming languages (8)
Github contributions (5)
sellomkantjwa/unpinterested
Apr 2018 - Feb 2021
A Web extension to exclude Pinterest from your Google search results
Contributions:1 release, 67 commits, 9 PRs in 2 years 10 months
web-extensiongoogle-search-resultsgooglegoogle-chrome-extensiongoogle-search
sellomkantjwa/rentroy-new
Apr 2023 - May 2023
Contributions:56 pushes, 1 branch in 26 days
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.