Vladimir Shefer

Senior Java Developer with over 7 years of experience, based in Berlin, Germany.

Proven expertise in designing and implementing scalable solutions for both established international corporations and dynamic startups. Experienced in leading cross-functional teams, mentoring developers, and delivering high-quality software products. Passionate about problem-solving, innovation, and fostering collaborative environments.

• Email: vladimir.shefer.work+github-cv@gmail.com
• Linkedin: @vshefer
• GitHub: @vladimirshefer
• Telegram: @vladimirshefer

Skills

• Java: Spring Framework, Java, Kotlin.
• Databases: SQL, JDBC, Hibernate, Elasticsearch, Redis.
• WEB: HTML, CSS, React, Vue.js, TailWind.
• Tools: Gradle/Maven, Git, Kibana, Docker, TeamCity, Nginx, Liquibase / FlyWay.
• DevOps: Linux, Bash, SSH.
• Cloud: AWS (EC2, RDS, ELK), GCloud (Pub/Sub, CloudStorage, DafaFlow).

Experience

11/2022-NOW. Senior Java Developer @ JetBrains

Development of world-leading tools for engineers

• IntelliJ IDEA, Platform UI Team:
  • Contributed to the New Terminal project, aimed at creating a user-friendly alternative to the classic terminal, tailored for novice developers.
  • Improved performance of critical features, including a significant speed-up of intelligent command autocompletion by conducting performance profiling, running experiments, and implementing an optimized solution.
  • Delivered multiple usability enhancements, reducing waiting times and improving responsiveness for end-users.
  • Focused on understanding priorities and accelerated project delivery by proposing pragmatic solutions, balancing quality and time-to-market.
• TeamCity UI Team:
  • Developed REST APIs to support new features and improve integration capabilities.
  • Enhanced API performance and reliability to meet user demands.
• TeamCity Pipelines:
  • Acted as the sole backend developer, driving the project from preview phase to General Availability.
  • Designed and implemented REST APIs for core functionality, enabling efficient and user-friendly CI/CD workflows.

12/2020 - 05/2022. Lead Java Developer @ Grid Dynamics

• Google retail search: - Integration of new Google Cloud service with one of the most popular online shops in USA.
  • Led and managed a cross-functional team of 7 members (5 developers, 2 QA).
  • Acted as the primary point of contact for customer communication, providing regular updates on progress, risks, and deliverables.
  • Collaborated with stakeholders to gather, clarify, and prioritize project requirements, aligning technical goals with business objectives.
  • Designed and developed microservices to seamlessly integrate Google Cloud services with the client’s e-commerce platform.
  • Implemented and maintained CI/CD pipelines to streamline development processes for the team.
  • Conducted code reviews and provided mentorship to team members.
  • Tools. Java 8/11, Spring Boot, Google cloud (DataFlow, GCS, PubSub, Retail Search), Teamcity
• Dubai Store: - Online store in UAE.
  • Collaborated with stakeholders to gather and refine product requirements.
  • Designed and developed a custom plugin for the SOLR search engine, tailored to meet specific project needs.
  • Improved search relevancy for head and tail queries, leading to a measurable increase in user satisfaction.
  • Provided technical support to address stakeholder queries and resolve search-related issues effectively.
  • Deployed and maintained the search plugin on servers.
  • Tools. Java 8, Solr, Lucene

08/2019 - 12/2020. Senior Java Developer @ Touch Instinct

• Projects.
  • “Cifra” - online bookkeeping app for business.
  • “Reporting” - Employees status and performance review application for project managers.
  • “Spring Logging” - Declarative logging framework for Spring.
• Tools. Kotlin, Spring Framework 5 (Boot, Web, WebFlux, Data), Project Reactor, Postgres, REST-API, SOAP, Teamcity, Ansible, Docker, Docker-compose.

Early Experience

• 07/2018 - 08/2019: Java Developer @ Segmento (Programmatic advertising platform)
  • Developed and supported a realtime bidding (RTB) platform.
  • Java 8, Spring 4.3 (Boot, Web, Data), JAX-RS, MySQL, Elasticsearch, REST-API, Spark, NGINX, Spark.
• 10/2017 - 07/2018: Junior Big Data Developer @ Barsum (Cloud services analytics and monitoring)
  • Implemented and optimized data processing pipelines (ETL) and developed the DAO layer.
  • Scala, Spark, Kafka, HBase, Redis, Jenkins.

Education

• 2014-2020 Master’s degree in Computer Security - Saint-Petersburg State Electrotechnical University (LETI)

Languages

• English - professional
• German - basic

Source