Dan Groshev
Senior Technical Consultant at Glite Tech
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolDan Groshev is a senior technical consultant and generalist backend engineer based in London with over a decade of experience architecting resilient, cost-effective systems. He has led migrations and optimisations—most recently moving a Lambda-based service to ECS to cut p99 latency ~10x and costs ~3x—while also improving database hotspots from seconds to milliseconds. As a former CTO, he built a custom subscription engine that enabled near-100% SKU utilisation and scaled a small engineering team through growth and supply-chain crisis management. He combines hands-on systems work (Django, AWS, Durable Objects, Erlang) with hardware and embedded experience—having designed a mixed-signal PCB and shipped an RP2040-based product—so he’s comfortable across firmware, backend, and infra. Dan also designs pragmatic ML/NLP pipelines, delivering >99.5% precision in extracting dictionary data from noisy corpora, and mentors teams to maintain velocity via typing, linting, and tooling. Practical, curious, and results-focused, he blends deep technical craft with operational and hiring leadership.
10 years of coding experience
11 years of employment as a software developer
Bachelor’s Degree Applied Mathematics, Bachelor’s Degree Applied Mathematics at Saint Petersburg State UniversityMinor Bioinformatics, Minor Bioinformatics at Saint Petersburg Academic UniversityUnfinished bachelor's degree Control Systems, Unfinished bachelor's degree Control Systems at Peter the Great St.Petersburg Polytechnic University
English, Russian
Github Skills (25)
extern10
java10
api10
sdk10
jvm9
python7
openai6
llm6
chatgpt6
conversational-ai5
langchain5
bacteria3
bioinformatics3
in-memory2
dependency-injection2
Programming languages (8)
Github contributions (5)
skbkontur/extern-java-sdk
Apr 2018 - Aug 2019
SDK для работы с API Контур.Экстерна для платформы JVM
Contributions:5 releases, 315 commits, 152 PRs in 1 year 4 months
jvmsdkkonturexternjava
buftio/buft.io
Feb 2023 - May 2025
Contributions:2 releases, 11 pushes, 2 branches in 2 years 3 months
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