Oleh

Oleh Lysenko
Golang Developer

Linkedin, Email

Date/Place of birth Pro le
22.03.2001, Ukraine I am a pragmatic and experienced Golang Developer with a 4 years of
commercial experience focused on building reliable, maintainable, and
scalable backend systems. I combine a strong understanding of business
Languages
processes, the use of AI tools where they truly bring value, and the
English: C1 Level application of Clean Architecture principles. This balance allows me to design
German: B1 Level and deliver high-quality services quickly and ef ciently. I value clear
Ukrainian: Native communication, teamwork, and continuous improvement of technical and
Russian: Native
architectural skills.

Skills
Languages: Golang
Frameworks & Tools: Docker, Kubernetes, gRPC, Kafka, WebSockets, Git, CI/
CD, Microservices
Databases: PostgreSQL, MySQL, Redis, MongoDB
Cloud & DevOps: Prometheus, Grafana, Linux, AWS, Azure, GCP
Testing: Unit Testing, Integration Testing
Other: Blockchain

Employment History
Golang developer, Vier GmbH, Full-time
January 2024 – Present
Responsible for the full development lifecycle of microservice-based
applications for a customer support software company. Collaborated with
cross-functional teams to gather requirements, design reliable solutions, and
ensure seamless system integration. Applied Clean Architecture principles
and performance optimizations to deliver scalable, robust, and ef cient
solutions that supported long-term company growth.

Golang developer, Envoys, Full-time
March 2023 — Februar 2024
Contributed to the development and maintenance of a cryptocurrency
exchange platform. Con gured APIs for transcoding between HTTP/JSON
and gRPC. Developed backend components using PostgreSQL, with
deployments on AWS. Improved data consistency and system performance
through optimization of service communication and query execution.
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 Golang developer, Self-Organized Team, Part-time, Ukraine
March 2021 — December 2022
Founded and led a small development team focused on cryptocurrency
automation. Designed and implemented high-performance crypto-arbitrage
bots for the Binance exchange. The system monitored in-exchange and over-
the-counter arbitrage opportunities and executed automated trades within
milliseconds, signi cantly improving trade success rates.

Golang developer, Startup, Full-Time, Ukraine
April 2021 – March 2022
Developed and maintained the backend of a healthy food delivery
web application. Designed and deployed REST APIs and integrated
the service with Telegram using gRPC. Improved response times
and server stability by introducing caching mechanisms and
asynchronous job handling.

Mining farm administrator, Part-time, Ukraine
December 2017 — February 2022

Education
Master Degree, National Technical University of Ukraine
“Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine
September 2022 — June 2024
Bachelor degree , National Technical University of Ukraine
“Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine
September 2018 — June 2022
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