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Ruslan Bahlai

Senior Software Engineer | Full-stack PHP & Symfony Developer

Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind.

Professional Summary

Software engineer with more than 14 years of professional experience. Most recently, worked as a Team Lead and Backend Developer in Tel Aviv company — SaaS traffic platform. Have experience with international product teams (France/Spain): affiliate marketing, food delivery, fashion tech. Mainly working with PHP and Symfony framework, REST APIs, mySQL/PostgreSQL, and related frontend frameworks. Hold a Master’s degree in Software Engineering. I’m proactive and detail-oriented, in my free time I do sports and play the guitar.

Technical Skills
  • Programming Languages: PHP 5/7/8, JavaScript/TypeScript, Python
  • Frameworks: Symfony, API Platform, Laravel, Yii
  • Databases: MySQL, PostgreSQL, Doctrine, MongoDB, Redis
  • Frontend: HTML, CSS, JS/jQuery, Twig, Vue.js, Angular
  • Software Architecture: OOP, MVC, Microservices Architecture, CQRS, DDD
  • Development Techniques: Clean Code Principles, SOLID Principles, GoF Design Patterns
  • APIs & Communication: REST APIs, WebSockets, RabbitMQ
  • DevOps & Cloud Infrastructure: Docker, Kubernetes, CI/CD Pipelines, AWS services

Soft Skills
  • Proactive and self-driven approach to development and teamwork
  • Clear and effective written and verbal communication for technical collaboration
  • Reliable in providing accurate time estimates and consistently meeting delivery deadlines
  • Detail-oriented with a strong focus on code quality and maintainability
  • Senior mindset: ownership, technical leadership, and autonomous problem solver

Languages
  • Ukrainian — native
  • English — upper-intermediate
  • Russian — proficiency

Drop me a message and let's discuss your project!

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Project Gallery

WORK EXPERIENCE

  • Present
  • AFFILOMANIA

    Team Lead and Senior Backend Developer

    Israel-based B2B SaaS company providing affiliate marketing technology solutions.

    Technical contributions and impact:
    ● Led backend development and scaling of the PHP/Symfony platform, supporting a traffic growth of over 200% within one year while ensuring system uptime.
    ● Architected and implemented high-performance backend systems using PHP/Symfony, MySQL, microservices, and Docker, improving API response times by 20%.
    ● Integrated 20+ third-party APIs, enhancing platform functionality, streamlining data synchronization, ensuring interoperability, and adding new traffic.
    ● Conducted ~30 code reviews per sprint, maintaining code quality, identifying and resolving bugs, mentoring junior developers, and enforcing coding standards.
    ● Optimized backend systems, reducing server load by identifying bottlenecks, implementing caching mechanisms, and fine-tuning database queries.

    Tools and technologies: PHP, Symfony, TypeScript, PostgreSQL, Doctrine, MongoDB, Microservices Architecture, REST APIs, Docker, Kubernetes, AWS services.

    Team size: 3 Devs, DevOps, Solution Architect, QA.

    Jul 2024 – Jun 2025
  • Avekapeti

    Senior Symfony Developer

    Avekapeti delivers homemade meals prepared with fresh and seasonal products by gourmet chefs. Joined a venture-backed French food-tech startup to design, scale, and maintain internal platforms while automating core business processes.

    Technical contributions and impact:
    ● Engineered back-office systems utilizing Symfony framework, introducing high-impact features for operations, logistics, and business teams, accelerating internal workflows by 20% and enhancing overall efficiency.
    ● Designed a novel food delivery mechanism, covering domain modeling and integration with existing order and fulfillment systems.
    ● Led frontend evolution of internal and user-facing interfaces (Twig / JS), improving UX consistency and maintainability while coordinating backend changes.
    ● Transformed legacy code by implementing Symfony coding standards and reducing technical debt across 3 major modules, improving application performance.

    Tools and technologies: PHP, Symfony, MySQL, Doctrine, HTML, CSS, vanilla JS, Twig, Docker.

    Team size: 2 Devs, CTO, Manual QA.

    Oct 2021 – Jul 2024
  • Le Guide Noir

    Senior Software Engineer

    Le Guide Noir Spain-based B2B/B2C SaaS platform providing influencer marketing technology. Collaborated with an international engineering team to build and scale innovative products across fashion, influencer ecosystems, and data analytics.

    Technical contributions and impact:
    ● Core contributor to the main monolithic user portal, working across backend and frontend layers to support creators, brands, and internal teams.
    ● Pioneered and maintained 2 independent projects/services, including an influencer library and analytics platform, providing performance metrics, insights, and reports; and an automated system for social media portfolio generation, creating shortened, custom domain names, and enhancing public sharing, which led to a 30% increase in user engagement.
    ● Constructed a high-performance JavaScript plugin, deployed across 50+ brand websites, to display engagement galleries, working end-to-end on plugin architecture and frontend behavior, and REST API built from scratch to serve data.
    ● Implemented complex analytics, business logic, and calculations, producing actionable metrics, automated reports, and insights for business and marketing teams.

    Tools and technologies: PHP, Symfony, MySQL, Doctrine, HTML, CSS, vanilla JS, Twig, Docker.

    Team size: 7 Devs, DevOps, Project Manager, 2 Designers, 2 QA.

    Oct 2016 — Oct 2021
  • Digital Mafia

    Middle / Senior Developer

    Worked on the design, development, and delivery of custom web applications for clients, taking ownership across the full software development lifecycle.

    Technical contributions and impact:
    ● Built and customized web applications and internal tools using contemporary frontend and backend frameworks, enhancing functionality and efficiency.
    ● Collaborated directly with designers and project managers to translate requirements into stable, maintainable technical solutions.
    ● Refactored and co-ordinated existing codebase, delivering enhancements, bug fixes, and performance improvements.

    Tools and technologies: PHP, Symfony, MySQL, Doctrine, HTML, CSS, JS/jQuery, Twig.

    Team size: 6 Devs, Project Manager, SysAdmin, Designer.

    Jul 2014 — Sep 2016
  • OkInternet

    Junior / Middle Developer

    OkInternet was a fast-growing company that took over a large part of internet industry in Ukraine.

    Started as a junior web developer and rapidly progressed to a mid-level position while contributing to a fast-growing digital agency with a robust engineering culture.

    Technical contributions and impact:
    ● Engineered and supported web applications and client websites, working across full-stack layers to ensure performance, reliability, and scalability.
    ● Spearheaded code improvements, fixed production issues, and participated in refactoring and optimization of existing codebases.

    Tools and technologies: PHP, Symfony, Facebook Apps, MySQL, Doctrine, HTML, CSS, JS/jQuery, Twig.

    Team size: ~20 Devs, 2 Project Managers, SysAdmin, Designers.

    Oct 2011 — Jun 2014
  • Education
  • Master's diploma in Software Engineering (Systems focused) with honours

    Zhytomyr Polytechnic State University

    In 2015 completed the full course of Zhytomyr Polytechnic State University obtained master's degree in the field of study "System Software" and obtained qualification of Master of Software Engineering (Systems focused).

    Sep 2014 – Jul 2015
  • Bachelor's diploma in Software Engineering with honours

    Zhytomyr Polytechnic State University

    In 2014 completed the full course of Zhytomyr Polytechnic State University having specialized in "Software Engineering" and obtained qualification of Bachelor of Software Engineering.

    Sep 2010 – Jun 2014

Looking for long-term partnerships

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Get in touch

Kyiv, Ukraine

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