Oleg Efrem
AI Software Engineering Expert at Toptal
Stony Stratford, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolOleg Efrem is an AI software engineering expert and seasoned technical lead with over a decade delivering mission-critical backend platforms across finance, government and e‑commerce. He combines hands‑on architecture and coding with DevSecOps/SRE practices to ship secure, scalable microservice and event‑driven systems on AWS/GCP/Azure using Kubernetes, Terraform and CI/CD. A polyglot fluent in Scala, Java, Python, Node/TypeScript, Go and Rust, he’s repeatedly led greenfield platforms, ETL and event‑sourced architectures for clients like HMRC, Bank of America and William Hill. He coaches teams to adopt AI coding assistants and modern delivery pipelines, materially improving release frequency and reliability. Known for pragmatic DDD and functional Scala expertise (including ZIO, cats and fs2), he also publishes his system design philosophy in a widely viewed talk. Based in the UK, he actively blends research collaborations on AI validation and benchmarking with hands‑on consultancy and open tooling shared on GitHub.
11 years of coding experience
16 years of employment as a software developer
Master of Science (MS), Computer Science, Master of Science (MS), Computer Science at State University of Moldova
Stackoverflow
1reputation
0reached
2answers
0questions
Github Skills (22)
kubectl8
slick6
scala6
tortoise-svn6
database5
k8s5
azure5
intellij5
kubernetes4
json4
intellij-idea4
security4
sql4
api3
intellij-plugin3
Programming languages (3)
Github contributions (5)
OlegEfrem/shop-checkout-sfp
May 2017 - Dec 2019
Contributions:4 pushes, 1 branch in 2 years 7 months
OlegEfrem/movies_rest_service
Mar 2017 - Apr 2017
Contributions:23 commits, 1 PR, 17 pushes in 17 days
apihttp-rest-apiakka-httprestakka
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