Adam Kuś

Senior Software Engineer | Backend & DevOps

📍 Luxembourg, Luxembourg

📧 adem.kus@gmail.com

📱 +48 577 305 819

🔗 adamkus.pl

🔗 linkedin.com/in/adamkus

Senior Software Engineer with over 12 years of experience designing scalable backend architectures and high-availability systems. Deep expertise in PHP (Symfony) with a strong focus on DevOps (Kubernetes, Docker) and infrastructure automation. Recently focused on AI Integration, having successfully built production systems utilizing LLMs and generative AI APIs. Proven track record of technical leadership, including team management and architectural decision-making. Open to challenges in Luxembourg or remote environments.

Professional Experience

Senior Software Engineer, PHP
Byborg Enterprises (Live Streaming & AI Platforms)
Aug 2021 – Oct 2025
  • AI Platform Development (Jasmin.ai): Contributed significant work as part of a cross-functional team to an AI-driven platform. Integrated multiple LLMs and generative APIs to power real-time chatbots and image generation.
  • Core Infrastructure & Tooling: Contributed to the internal core framework and shared libraries (logging, metrics) used as the foundation for company-wide APIs, enabling standardized observability and faster development for multiple teams.
  • High-Traffic API Maintenance: Maintained and owned critical APIs serving 20-30 requests per second with 99.9% uptime, ensuring low-latency responses for live interactions.
  • Feature delivery: Owned the implementation of "Competitions" and gamification features within the team, contributing to increased user engagement and revenue.
  • Modernization: Applied existing Docker/Kubernetes deployment strategies to APIs and assisted in upgrading multiple services from PHP 7.x to PHP 8.3.
Senior Fullstack Engineer
Contractor (Various Projects)
Dec 2018 – Aug 2021
  • Delivered full-stack solutions for international clients, balancing backend logic (PHP) with frontend interactivity (JavaScript/AngularJS).
  • Implemented CI/CD pipelines to automate testing and deployment.
  • Architected scalable database solutions using MySQL and Redis for data-intensive applications.
Software Developer
Workfront (Enterprise Work Management)
Mar 2017 – Sep 2018
  • Contributed to a large-scale SaaS platform, focusing on backend service optimization and API integrations.
  • Practiced strict TDD/BDD methodologies to ensure code quality in a complex codebase.
Senior Software Developer
TimeDoctor (Productivity SaaS)
Oct 2014 – Mar 2017
  • Developed core tracking features for a globally distributed productivity application.
  • Optimized high-volume data processing for user activity logs using MongoDB and PHP.
Lead Developer
Krakvet / Zoofast - Krakow
Apr 2013 – Dec 2013
  • Managed a team of 3 developers, planning work, reviewing code, and coordinating delivery.
  • Led backend development for e-commerce features and integrations, with a focus on maintainability and performance.
  • Worked closely with stakeholders to translate business needs into technical solutions and delivery plans.
Software Developer Roles
Various Companies (Freelance, Grupa Pff, DGMedia, KEI, Techforce, Ideauj)
2008 – 2014
  • Built a strong foundation in PHP/MySQL web development across agency, product, and freelance environments.
  • Founder (Ideauj, 2013–2015): delivered end-to-end projects, including client communication, implementation, and deployment.