Sebastian Oelke
Principal Engineer at AllUnity
Shanghai, Germany
Summary
👤
Senior🎓
Top SchoolSebastian Oelke is a Principal Engineer with over a decade of experience building and scaling backend systems, teams, and operational practices across startups and large enterprises. Based in Shanghai with a German engineering education, he has led major migrations (Ruby to Go, on-prem to AWS) and implemented banking standards and event-driven architectures that improved data integrity and observability. Known as a calm, structured tech lead and mentor, he specializes in helping early-career engineers, senior ICs, and new tech leads navigate career and team challenges. His pragmatic focus spans API design (GraphQL), core-banking CQRS/event sourcing, and production excellence—often pairing technical execution with coaching to unlock team performance. Outside of work he blogs about engineering and tinkers with side projects, bringing a hands-on “repairman” curiosity to architectural problems.
11 years of coding experience
15 years of employment as a software developer
Bachelor’s Degree Computer Science and Media, Bachelor’s Degree Computer Science and Media at Berlin University of Applied Sciences Berlin (BHT)Master’s Degree Computer Science, Master’s Degree Computer Science at Technische Universität Berlin
English, German, French, Chinese
Stackoverflow
81reputation
19kreached
2answers
0questions
Github Skills (43)
delayed-job10
authentication9
resque9
devise9
basic-authentication9
decision-making8
rails8
ruby8
analyzer8
async7
linter7
sidekiq7
code-analyzer7
database-cleaner7
partials6
Programming languages (3)
Github contributions (5)
baschtl/best_practices
Dec 2015 - Mar 2016
Contributions:12 commits, 17 pushes, 1 branch in 3 months
baschtl/devise-token_authenticatable
Mar 2016 - Jan 2018
This gem provides the extracted Token Authenticatable module of devise. It enables the user to sign in via an authentication token. This token can be given via a query string or HTTP Basic Authentication.
Contributions:14 releases, 25 commits, 24 PRs in 1 year 10 months
querysign-instringsignrails
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