Sergei Malafeev
Lead Java Developer at Sberbank
Moscow, Moscow City, Russia
Summary
🤩
Rockstar🎓
Top SchoolSergei Malafeev is a Lead Java Developer with 12 years of experience designing and delivering resilient, distributed systems for enterprise customers including Sberbank, Visa, Autodesk and TomTom. He specializes in backend Java, microservices and observability, with hands‑on experience implementing distributed tracing and instrumentation for Spring Boot/Cloud, JPA/Data Rest and RxJava in a notable open-source tracing project. Sergei has a track record of raising engineering standards—introducing CI/CD, static analysis, testing practices and mentoring teams—to accelerate delivery and reduce operational risk. His background spans low-level C/C++ telecom work to high‑level REST and graph metadata services, giving him a broad systems perspective. Based in Moscow, he blends deep technical craftsmanship with leadership in large organizations. A physicist by training, he brings analytical rigor to solving complex software and integration challenges.
11 years of coding experience
18 years of employment as a software developer
Master's degree, Physics, Master's degree, Physics at State University of Nizhni Novgorod named after N.I. Lobachevsky (UNN)
English, Russian
Stackoverflow
147reputation
22kreached
3answers
8questions
Github Skills (25)
tracer10
instrumentation10
java10
javas10
netflix-zuul10
spring-boot10
spring-cloud10
jpa10
trace10
api-design9
restful-api9
rxjavafx9
testing9
api-rest9
rxjava9
Programming languages (11)
Github contributions (5)
opentracing-contrib/java-spring-cloud
Sep 2017 - Feb 2020
Distributed tracing for Spring Boot, Cloud and other Spring projects
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits, 11 PRs, 1 push in 2 years 5 months
Contributions summary:Sergei focused on implementing distributed tracing for Spring Boot and Spring Cloud projects, specifically related to the Zuul proxy and JPA/Data Rest components. They added new features for Zuul tracing, including tests, configurations, and documentation, alongside addressing checkstyle issues. The user also added and tested instrumentation for JPA and Data Rest, demonstrating an understanding of database integration. Further contributions included upgrading dependencies and the implementation of instrumentation for RxJava.
hystrixrxjavajdbcmongodbresttemplate
Edgewonk/fxcomponents
Jun 2016 - Jan 2017
Contributions:18 commits, 6 PRs, 8 pushes in 6 months
javacomponent-libraryjavafxjavafx-component
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