Vladimir Dontsov

Team Lead, Development Team — B2B Marketplace Team composition: 4 backend developers, 4 frontend developers Responsibilities: 1. Lead a team of 8 engineers (4 backend + 4 frontend): backlog decomposition and prioritization, deadline tracking in Jira. 2. Built the hiring process from the ground up: filled 4 open positions within a year, conducted 20+ interviews, managed onboarding, performance reviews, and 1-on-1 meetings. 3. Participate in architecture design alongside the tech lead; conduct code reviews, establish and maintain engineering standards across the team. 4. Manage the release cycle; coordinate cross-functional work with frontend, QA, DevOps, analysts, and product managers. Key Achievements: 1. Led an architectural initiative for international marketplace scaling: decomposed the epic, coordinated a team of 4 backend developers, and delivered the project to production on schedule. 2. Spearheaded the migration of the search engine from CrateDB to PostgreSQL: designed the catalog API architecture and reworked inter-service communication — achieved zero-downtime migration, boosted throughput to 400+ RPS, increased the share of fast queries (<2s) from 60% to 85%, with a direct positive impact on catalog conversion. 3. Built the onboarding process from scratch: authored search engine documentation in Confluence (25+ pages covering architecture, API, and runbooks) — reduced new developer time-to-productivity from 2 weeks to 4 days. 4. Implemented a full order audit system with complete change history — reduced the average time to resolve production incidents by 3× (from ~2 hours to ~40 minutes). Stack: Java 17, Spring Boot, Spring Security, PostgreSQL, Oracle, Hibernate, Apache Kafka, Hazelcast, Kubernetes, Grafana, CrateDB

Backend Developer — B2B Marketplace Team: 1 team lead, 2 backend developers, 2 frontend developers, 3 QA engineers, 1 business analyst, 3 product managers Responsibilities: 1. Developed and shipped backend features to production as part of a cross-functional team. 2. Collaborated with product managers on task decomposition and participated in sprint planning. 3. Conducted code reviews and investigated and resolved production incidents. Key Achievements: 1. Co-designed and implemented a discount management admin panel together with the PM — automated manual marketing operations and reduced promotion setup time from 2 hours to 15 minutes. 2. Developed a delivery region management API — cut zone configuration time by 1–2 hours per operation. 3. Extended the price list upload API with bulk personal pricing updates — reduced supplier assortment update time by 30%. Stack: Java 17, Spring Boot, PostgreSQL, Oracle, Hibernate, Apache Kafka, Hazelcast, Kubernetes, Grafana

Project: B2B platform for distributing orders between performers Team members: 1 team lead, 2 backend developers, 2 product managers, 1 tester Responsibilities: • Code review • Discussing tasks with the customer • Discussion with a QA engineer on how to test completed tasks Achivments: • Implemented a service for testing the functionality of interacting with a third-party API • Implemented a service for automatically detecting unpaid customer bills and sending email notifications Stack: Java 16, Spring framework, Spring boot,Hibernate, MSSQL, JUnit, AngularJS, Protractor tests, Jenkins, SonarQube

Project: Development of a platform for operational accounting of the organization's activities Team members: 1 head, 2 full-stack developers, 1 backend developer Responsibilities: • Code review • Discussing the project development plan with the customer, forming tasks for the next month • Delegating tasks to other developers • Organization of daily meetings Stack: Java 8, Spring framework, Spring boot, Hibernate, MSSQL, NuxtJS

Project: Car repair status monitoring system for clients and managers. The system displays information about the repair status of vehicles that are currently in the service center. Team members: 1 product manager, 1 full-stack developer Responsibilities: • Development of backend and frontend components of the project • Completion of the project by order of the product manager • Project implementation in the company's service centers Stack: Java 8, Spring framework, Spring boot, MySQL, Hibernate, Lombok, VueJS, 1C.