Resume
Higgor Leimig
Specialising in distributed systems, serverless architecture, and building high-performing teams at scale.
Experience
Runa · London, UK
- Leading a 4-person engineering team responsible for Fraud Prevention. Delivered features that reduced exposure and increased identification of fraudulent card transactions — cutting successful attacks from £150k to £4k.
- Defined the framework used by Engineering leadership to understand and discuss Fraud Prevention within the platform, leading to concrete roadmap items to reduce fraud incidence.
- Owned the team roadmap in lieu of a Product Manager.
Runa · London, UK
- Technical leader of an Engineering Domain responsible for integration with 100+ suppliers.
- Facilitated the onboarding and training of two newly established teams at a new company site in Sofia, Bulgaria — bringing them up to speed on the software they inherited as well as company culture and expectations.
- Led migration away from the company monolith to serverless services, achieving a 97% reduction in API response time in one platform area.
- Led technical discoveries that cut supplier integration time from 2 weeks to 2 days.
Runa · London, UK
- Led system redesign that reduced internal manual work by 95% through automation of brand approval decisions.
- Redesigned and rebuilt a web app serving 1.4M+ users/month, improving developer experience and reliability of a business-critical system.
Klarna · Germany
- Worked on Klarna's Bank Account core technology — refactoring and improving the Transactions system responsible for giving meaning to ledger entries and reconciliation.
- Sole developer on an established team for three months — handled on-call responsibilities and viability research for future products.
Viasto · Germany
- Led performance optimisations resulting in a 66% performance increase of the main web application.
- Rebuilt the company's core product technology in a tight timeframe, improving developer experience and customer satisfaction.
CESAR · Brazil
- Technical leader of a 20-person team across 2 sites in Brazil and the US.
- Led performance improvement efforts delivering a 60%+ boost to a production web application.
Education
CESAR School · Brazil
Researched cache schemes in Information-Centric Networks to improve IoT performance. Published IoT Caching in Information Centric Networks at IARIA 2017.
DeVry Brazil · Brazil
Co-created Annuit Walk, an assistive glasses system for vision-impaired people. Winner of the 2014 Youth Award.
Temple University · USA
Awarded a competitive scholarship where applications outnumbered spots 16,000:1. Developed P910 in partnership with Temple University Campus Police to improve campus emergency call management.
Skills