Віктор Veteran

Viktor Holovko Ukraine, Cherkasy
Senior Backend Software Engineer [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)

About Myself LinkedIn profile

I am a Senior Backend Engineer with 13+ years of software development
experience, possessing a strong technical background in software
engineering, requirements management, and architectural design. I am well- Technologies
versed in OOP principles, SOLID, design patterns, and Domain-Driven PHP
Design (DDD). Symfony / Doctrine / Twig
MySQL
Technical Expertise
PostgreSQL
• Backend Development: Proficient in PHP/Symfony and capable of Redis
working with other OOP ecosystems and languages. Experienced in
InfluxDB
resolving complex issues, refactoring, and enhancing legacy
systems for improved performance and maintainability. ElasticSearch
• Software Architecture: Skilled in conceptual design, architectural RabbitMQ
planning, and database schema development, applying SOLID Mosquitto
principles to create scalable, maintainable solutions. Kafka
• OOP and SOLID Principles: Strong foundation in OOP and
Nginx / PhpFPM
SOLID practices, ensuring robust and adaptable software design.
Apache
Requirements Management and Analysis Docker / Docker Compose
GCP / Kubernetes
• Requirement Clarification: Adept at gathering and translating
complex business requirements into clear technical specifications. AWS
• Process Optimization: Capable of establishing processes that
ensure the long-term effectiveness of testing and documentation.
Skills
Team Collaboration and Leadership Requirements engineering
• Team Collaboration: Experienced in SCRUM and Kanban, Architecture design
contributing to various teams and improving efficiency through best DDD / SOA / Microservices
practices. OOP / SOLID / GRASP / DRY
• Leadership Growth: Building leadership experience, having
GOF Patterns
contributed to team improvements and process optimization.
API development
Additional Skills Unit / functional tests

• Cross-Disciplinary Knowledge: Basic understanding of AI,
marketing, wholesale, stock trading, 3D design, and video Tools / Environments
processing, enhancing my ability to deliver innovative solutions.
Linux
In summary, I bring technical expertise, a strong foundation in software
PhpStorm / xDebug
design, and growing leadership experience, making me a valuable
contributor to any team. Git, Github, GitLab, BitBucket
Jira, Trello, Redmine
Education Languages
Ukrainian - native
Specialist: Automated control systems
English - intermediate
Kharkiv Military University (Kharkiv, Ukraine)
1994 – 1999
Master's degree: Computer Systems Certifications
University of Applied Sciences ISMA (Riga, Latvia)
Deep Learning Specialization
2023 – 2025
deeplearning.ai
2019

Projects
Readdle
2024/10 – Now
An additional B2B solution for corporate clients based on the company's
products. Readdle - a global company founded in Ukraine - is one of the
world’s leading productivity brands, delivering world-class apps to millions
of users.
Role: Backend Engineer
Responsibilities:
- Project analysis, features requirements clarification
- Solution architecture design and development
- Product documentation preparing, planning
- Performance optimization, bottlenecks detection
- Integrate third party services for payments, marketing, BI
- Databases optimization
- Prepare and deploy new versions. Maintain and update CI
Tools and technologies: PHP, Symfony, MySQL, GCP, Kubernetes,
Docker, DockerCompose, REST, Stripe, Github Actions

KidsLox
2021/11 – 2023/11
Secure parental control apps that make it easy for parents to control screen
time, track their child's location, block apps, and monitor app usage.
Role: Backend Developer
Responsibilities:
- New features requirements clarification, modules design and development
- Code review, legacy code refactoring
- Performance optimization, bottlenecks detection
- Update modules to support dependencies of actual versions
- Integrate third party services for payments, marketing, BI
- Extract services from monolith
- Databases optimization
- Performance and security incidents investigation
- Prepare and deploy new versions. Maintain and update CI
Tools and technologies: PHP, Symfony, MySQL, Redis, GCP, Kubernetes,
REST, Sentry, Gitlab CI, Github Actions, Go, Python

Vend.land
2019/12 – 2021/09
IAAS. The first and biggest ukrainian fully automated vending network.
Hundreds of autonomous vending machines linked to fault-tolerant high-
available cluster. Centralized control, monitoring, telemetry, statistics and
staff logistics for machines owners. Mobile app for consumers.
Role: System analyst, Architect, Team lead, Backend Developer
Responsibilities:
- Business processes analysis, requirements elicitation and specification
- Redesign MVP into scalable maintainable product from scratch
- Design application level protocols, create specifications
- Develop project documentation, conventions
- Perform technical interviews, onboarding new developers
- Backend team leading, mentoring
Tools and technologies: PHP, Symfony, PostgreSQL, Redis, InfluxDB
MQTT/Mosquitto, Nginx, Docker, DockerCompose,
Grafana/Prometeus/Loki, JQuery, Bootstrap, REST, gRPC

Lalafo
2018/06 – 2019/05
International C2C marketplace powered by AI. More than 3 million active
users listed items worth over $10B.
Role: Developer
Responsibilities:
- Microservices development and maintenance
- Payment services integration
- Participation in architectural design
- Participation in marketing research and analysis
- Legacy code refactoring
- Telemetry improving, dashboards composing and tuning
Tools and technologies: PHP, Yii2, PostgreSQL, RabbitMQ, Kafka,
ElasticSearch, Redis, Nginx/PhpFPM, Docker/DockerCompose,
Kubernetes/Dapp/Helm, Graylog/Grafana, JQuery, Bootstrap, R

OroCommerce
2015/09 – 2016/08
Open source B2B e-commerce platform, OroCommerce is built for mid-size
and large B2B companies selling online. Manage corporate accounts,
multiple catalogs, streamline buyer-seller negotiations, maintain multiple
price lists, and secure permissions & access controls all comes out-of-the-
box.
Role: Developer
Responsibilities:
- Bundles development and improvement
- Payment services integration
- Code review, refactoring
- Discuss new features, experimentally compare different solutions
Tools and technologies: PHP, Symfony, MySQL, PostgreSQL, REST,
JQuery

Various small projects
2012/08 – 2015/08
Online stores, media service, travel booking aggregator, warehouse
management platform, CRM, marketing tools, landing pages.
Role: Developer
Tools and technologies: PHP, Zend Framework, CakePHP, Symfony,
Laravel, Drupal, MySQL, MsSQL, REST, SOAP, Jython, Jquery, Bootstrap