Микита

Nikita Karpenko
PHP Backend Developer
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)

PROFESSIONAL SUMMARY

Experienced PHP Backend Developer with 7+ years of commercial experience in backend
development, legacy modernization, feed integrations, parallel processing, production
support and cross-team delivery. Has experience with PHP, Yii2, CodeIgniter, Laravel,
relational databases, Redis, RabbitMQ, internal/external APIs, monitoring and operational
tooling. Worked as a Team Lead for a team of 6 developers, with responsibility for releases,
planning, task decomposition, mentoring and delivery.

CORE SKILLS

Backend: PHP, Yii2, CodeIgniter, Laravel, Phalcon
Frontend: JavaScript, jQuery, HTML/CSS
Databases & Storage: MySQL, PostgreSQL, Redis, MongoDB
Messaging & Logs & Search: RabbitMQ, ELK, OpenDistro, Greylog, Loki, Monolog
DevOps & Monitoring & Tools: Docker, GitLab CI, Phing, Gulp, Cron, Monit, Zabbix,
Grafana, Vault, Argo
APIs & Protocols: REST APIs, internal APIs, external provider APIs, AMQP, LDAP,
WebSocket, HTTP
Engineering Practices: SOLID, DRY, KISS, refactoring, legacy modernization, production
support, code review, task decomposition
Leadership & Communication: mentoring, release coordination, planning, cross-team
communication, stakeholder communication.
Languages: English (intermediate), Ukranian

COMMERCIAL EXPERIENCE

Senior PHP Backend Developer / Former Team Lead | Favbet Tech | Kyiv / Ukraine
Mar 2020 - July 2026

Domain: Betting, sports data, pre-match and live event management platforms.
Stack: PHP, Yii2 (mainly), CodeIgniter, Laravel, PostgreSQL, Redis, RabbitMQ,
ELK/OpenDistro, Docker, Cron, Monit, Zabbix, Grafana, LDAP, Vault, Argo.
Career growth: Joined as a Middle PHP Developer, grew to Senior PHP Backend
Developer, worked as a Team Lead for a team of 6 developers for around one year, then
returned to a Senior individual contributor role focused on core engineering ownership.
● Took ownership of the pre-match direction in the main betting platform, covering
business logic, provider integrations, production support, technical improvements and
delivery of new functionality.
 ● Worked on both pre-match and live betting systems, including event management
workflows, sports data processing, automated data handling and other internal
operational interfaces.
● Integrated multiple external sports data providers for different sports, including data
mapping, validation, synchronization, failover logic and production issue handling.
● Designed and implemented internal feed functionality based on internal platform
data, enabling data preparation and broadcasting to other systems and partners.
● Developed background workers and long-running processes for asynchronous data
processing, system automation and inter-process communication.
● Implemented failover logic for integrations with external providers to improve stability
and fault tolerance of provider-dependent workflows.
● Participated in the development of a new live event management interface and
helped deliver a highly automated partner solution together with the team.
● Supported and extended partner-facing functionality, including region-specific partner
logic for the Asian, Crypto market and intermediate services used by partners.
● Improved internal APIs and prepared requirements for new API endpoints in related
services, including services written in Erlang; made small fixes when needed.
● Migrated the main project to newer internal APIs responsible for database-related
operations and service communication.
● Optimized database queries, data processing flows and parts of the application
architecture
● Solved hundreds of support and production issues, investigated bugs, implemented
fixes and coordinated with QA, DBA, DevOps, support, business analytics, technical
writers, mathematicians, data providers and customer-side stakeholders.
● Initiated improvements in business processes, system behavior and codebase
quality, including refactoring legacy logic and reducing technical debt.
● Mentored and onboarded 10+ developers and QA engineers.
● As Team Lead, managed a team of 6 developers, coordinated releases and planning,
decomposed tasks, reviewed technical solutions and took responsibility for team
delivery.

Junior Strong PHP Developer | Evogence - Kyiv / Ukraine
Aug 2019 - Mar 2020

● Developed new features, improved business logic and refactored legacy code in a
custom PHP framework-based project.
● Optimized existing database queries and fixed scripts related to database operations
and replication.
● Implemented API functionality for communication between internal projects

Junior Full Stack Developer | Omega TV - Kyiv / Ukraine
Jun 2018 - Aug 2019

● Developed and maintained admin panel functionality using CodeIgniter and Phalcon
● Implemented business logic changes and fixes for APIs used by the billing system.
● Worked on a logging/statistics microservices including generation of XLS reports.
● Used Docker Compose for local deployment, Phing for migrations and GitLab CI.

EDUCATION

National University of Food Technologies - Faculty of Automation of Computer Systems,
Computer Science