Senior Java Developer

OCPP Server-gate for Chargers | Yalantis

Date: 04.2022 — 11.2023

Responsibilities

● Investigate and fix performance issues on the highload pipeline.

● Refactoring existing open-source solutions due to security/performance issues

● Updating production to the last open-source version.

● Refactoring SQL for better performance

● Implemented new features for analytics and service management.

● implement monitoring tools (Grafana, etc.)

● Creating auto deployment script for Mac and Windows using cron service and

task/event manager and bash/PowerShell.

● write production-ready microservices from scratch based on previous open-source

solutions.

● Debugging end-to-end solutions according to existing hardware and closed software

for charging.

● Reverse engineering existing closed solutions of charger hardware.

● Implemented custom load balancer solution +tuning existing Kubernetes

Senior Software Engineer

Infopulse

Date: 01.2019 — 01.2022

Responsibilities

● Development of new modules for the Transport Management System (TMS).

● Refactoring existing solutions, decomposing monolith into microservices.

● Fixing bugs from previous iterations and improving UX interaction.

● Providing L3 support, consulting end users, collecting end-user reports, and

implementing improvements based on these reports.

● Writing documentation and revising it based on user reports to prevent new bugs or misunderstandings.

● Migrating existing solutions, building and testing infrastructure from on-premise servers to Azure.

● Preparing the infrastructure for a new release version. Deploying code into customer

infrastructure. Writing migration scripts. Testing and preparing accepting scenarios for Pre-production.

Middle Software Engineer

Real-time app performance and server monitoring | Zaraffasoft

Date: 06.2017 — 12.2028

Project description

Technologies Used: Java 8, Playframework, AWS, Elasticsearch API +Kibana (UI), Zabbix API, Redis, PostgreSQL

Responsibilities

● Developing new microservices for testing existing solutions (load testing, identifying

bad URLs, etc.).

● Designing dashboards displaying information about existing problems.

● Configuring Zabbix for collecting various logs and displaying them on the dashboard.

● Creating a microservice for notifications.

Middle Full-Stack Developer (Back-End)

Cloud CMS based on microservices. for video processing. | Partizan Security

Date: 08.2016 — 07.2017

Responsibilities

●Developing a microservice for notifications.

●Creating a microservice for pain management and invoicing.

●Redesigning the CMS system for new regions (Latvia, Estonia).

●Adding new region settings, configurations, and modules