Yar Kravtsov

Senior Software Engineer

Riga, Latvia23 yrs 11 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Built an internal platform for automated deployments.
Migrated search to Solr, improving performance by ~10x.
Reduced local environment setup time to ~15 minutes.

Stackforce AI infers this person is a Backend-heavy Fullstack Engineer with extensive experience in SaaS and Mobile Applications.

Contact

Skills

Core Skills

GoAwsPhpPhalconMysqlSolrVisual Basic

Other Skills

ReactTypeScriptMongoDBKubernetesDockerJenkinsGitHub ActionsArgoCDTerraformPlaywrightRedisSymfonyGitOracleNginx

About

Senior software engineer with 20+ years across e-commerce, classifieds, mobile apps, and internal platforms. I work mostly in Go, building REST APIs, services, and automation around CI/CD and cloud infrastructure. In recent years I have focused on internal developer platforms at Lokalise; earlier I worked on high-traffic consumer products, search, performance, and large stack migrations. Highlights: - Built an internal preview-environment platform used for company-wide delivery, with automated validation, deployments, and E2E testing. - Migrated search from Oracle to Solr and reached ~10x faster queries. - Built backend + infrastructure for a mobile app from scratch (API design, CI/CD, cloud setup). - Solved production performance issues with Redis/Memcached and edge/server-side caching. TECHNICAL SKILLS Languages: Go, PHP, JavaScript/TypeScript, SQL, Visual Basic Frameworks: Gin, React, Phalcon, Symfony, CodeIgniter Cloud: AWS (EC2, EKS, RDS, S3, CloudFront, VPC, IAM, ALB, Route53), GCP Infra/ops: Kubernetes, Docker, Terraform, Linux, Nginx, Apache CI/CD: Jenkins, GitHub Actions, ArgoCD, Git, GitOps Datastores/search: PostgreSQL, MySQL, MongoDB, Redis, Oracle, MS SQL Server, Solr Testing: Playwright, E2E testing, TDD Other: REST APIs, microservices, performance tuning, caching

Experience

23 yrs 11 mos

Total Experience

3 yrs

Average Tenure

6 yrs 7 mos

Current Experience

Lokalise (hiring for work from anywhere)

Senior Software Engineer

Nov 2019 – Present · 6 yrs 7 mos · Riga, Latvia

Built Kargo, an internal platform that provisions isolated PR preview environments. Go backend + REST API, React frontend, MongoDB, AWS (EC2/ALB) and full application stack provisioning.
Implemented automated release flow via merge queue: validation, build, deployment, E2E tests, and artifact delivery to ArgoCD.
Cut releases from a 2-hour manual batch process to ~10 automated single-PR releases per day, removing staging as a bottleneck.
Contributed to migration from Hetzner to AWS, building and operating infrastructure across EC2, EKS, RDS, S3, CloudFront, and VPC.
Built automation that reduced local environment setup from hours/days to ~15 minutes; integrated Playwright E2E tests into CI.
Technologies: Go, React, TypeScript, MongoDB, AWS, Kubernetes, Docker, Jenkins, GitHub Actions, ArgoCD, Terraform, Playwright

GoReactTypeScriptMongoDBAWSKubernetes+6

Mobitech sia

Senior Software Engineer Team Lead

Jan 2016 – Nov 2019 · 3 yrs 10 mos · Riga, Latvia · On-site

Designed and built backend for a new mobile application (PHP/Phalcon + MongoDB): REST API design, core services, CI/CD with Jenkins/Docker.
Recruited and grew the engineering team from zero.
Built a Go-based orchestrator for on-demand isolated dev/staging environments to eliminate contention around a single shared staging setup.
Shipped the mobile application to production.
Technologies: PHP, Phalcon, Go, AWS, MongoDB, Redis, Jenkins, Docker

PHPPhalconGoAWSMongoDBRedis+2

Roamer

Senior Software Engineer

Nov 2014 – Dec 2015 · 1 yr 1 mo · Riga, Latvia · On-site

Built backend services for a VoIP mobile app (PHP/MySQL).
Replaced manual SCP deployments with Docker + Jenkins-based continuous deployment.
Technologies: PHP, Symfony, MySQL, Docker, Jenkins, Git

PHPSymfonyMySQLDockerJenkinsGit

Russianrealty.ru

Senior Software Engineer

Dec 2013 – Sep 2014 · 9 mos · Moscow, Russia · On-site

Migrated search from Oracle-based implementation to Apache Solr; improved search query performance by ~10x.
Worked on backend services for a high-traffic real estate classifieds platform.
Technologies: PHP, Oracle, Solr, Nginx

PHPOracleSolrNginx

Cars.ru

Senior Software Engineer

Nov 2007 – Nov 2013 · 6 yrs · Moscow, Russia · On-site

Diagnosed and fixed production performance issues (slow pages/timeouts under spikes). Added Redis caching and Nginx SSI to stabilize latency and handle peak load.
Led migration from a custom PHP framework to CodeIgniter to improve maintainability and hiring/onboarding.
Migrated version control from SVN to Git and introduced modern branching practices.
Worked full-stack in a small team: backend, deployments, and server administration.
Technologies: PHP, CodeIgniter, JavaScript, MySQL, Redis, Memcached, Nginx, Git

PHPCodeIgniterJavaScriptMySQLRedisMemcached+2

M2 real estate weekly

Senior Software Engineer

Jun 2004 – Jul 2007 · 3 yrs 1 mo · Moscow, Russia · On-site

Migrated a classifieds platform from ASP/MS SQL Server to PHP/MySQL; improved page load time and moved business logic out of stored procedures into the application layer.
Built and maintained SiteXS CMS used across multiple publication properties.
Technologies: PHP, MySQL, ASP, MS SQL Server, JavaScript, Apache, IIS

PHPMySQLASPMS SQL ServerJavaScriptApache+1

U-soft web-studio

Senior Software Engineer

Jan 2002 – Jun 2004 · 2 yrs 5 mos · Moscow, Russia · On-site

Set up development processes for a new studio and built a CMS ("Interactive Rubricator") for client-managed content.
Handled Linux administration and deployment workflows.
Technologies: PHP, JavaScript, MySQL, Linux, Apache

PHPJavaScriptMySQLLinuxApache