Senior Software Engineer, Backend (Contractor - Remote within Europe)

Welcome to Byborg! As a leader in IT and streaming solutions, we specialize in delivering high-quality services that offer premium online experiences.
Headquartered in Luxembourg and operating globally, our company is proud of its diversity, with over 40 different nationalities working side by side. Since its launch, our flagship product has led the market, continually pushing the boundaries of digital innovation. Today, working with the latest technology, our platforms serve millions of users daily.
We are proud of our dynamic portfolio, featuring over 16 leading and fast-growing brands. These include our streaming platforms (LiveJasmin.com, Cherry.TV, IsLive.com, Oranum.com), our marketing and advertising services (AdSupply, AWEmpire, TwinRed), and our entertainment and lifestyle brands (LoyalFans.com, The Million Roses, Kinkly.com).
Are you looking for new challenges in an international, collaborative environment? The Byborg squad is seeking passionate individuals ready to make an impact. Join us in our inclusive workplace where you will be appreciated, and you can grow and achieve your potential. Help us shape the future!

We are looking for skilled Backend Engineers with a strong problem-solving mindset, excellent programming skills (especially with PHP), and a solid grasp of system design principles. As a Backend Engineer, you’ll work closely with our engineering teams to tackle technical challenges and drive innovative enhancements to our products.

In this role, you will:

• Design and implement high-quality software architecture with a focus on scalable solutions for high-load and high-concurrency environments.
• Write clean, well-documented, and maintainable code following industry best practices, ensuring code quality, performance, and scalability.
• Collaborate with cross-functional teams, including frontend developers, designers, and product managers, to deliver robust and scalable solutions.
• Propose, evaluate, and integrate new technologies, frameworks, and methodologies to improve development efficiency and product quality.
• Troubleshoot, debug, and resolve complex technical issues, optimizing systems for high load and concurrency.
• Participate in code reviews, providing constructive feedback to peers, and continuously promote coding standards and best practices.
• Contribute to team efficiency through the development of documentation and processes that foster continuous improvement.

Technical Skills:

• Backend Development & Expertise: Proven experience as a Backend Developer with 3-5 years in professional web application development, specializing in building systems designed to handle high-load and high-concurrency traffic. With strong proficiency in PHP (at least 2-3 years) and hands-on experience in frameworks like Symfony as a plus.
• Database Management: Solid experience with both relational (e.g., MySQL, PostgreSQL) and NoSQL databases, with expertise in writing optimized SQL queries.
• API Development: Experience in designing and building RESTful APIs; familiarity with GraphQL is a plus.
• Concurrency and Load Handling: Expertise in creating systems optimized for concurrency, including caching, load balancing, and horizontal scaling techniques.
• Testing and Code Quality: Practical knowledge of Test-Driven Development (TDD) and Behavior-Driven Development (BDD), with experience writing unit and integration tests.
• Version Control: Proficiency in Git and modern version control systems.

DevOps and Infrastructure:

• CI/CD Pipelines: Familiarity with CI/CD pipeline setups and automation using tools like Jenkins or Atlassian Bamboo.
• Containerization: Experience with Docker/Podman and maintaining reproducible development environments.
• Security: Knowledge of backend security best practices, including secure authentication, authorization, and data protection.

Soft Skills:

• Problem-Solving: Strong analytical skills for debugging and resolving complex technical issues.
• Collaboration: Excellent communication skills, with experience working effectively in team-oriented and agile environments.
• Agile Development: Familiarity with agile methodologies (e.g., Scrum, Kanban) and the ability to adapt to a fast-paced, iterative work environment.

Nice to Have

• Additional Database Technologies: Knowledge of Elasticsearch and OpenAPI (preferably version 3.*).
• Message Queues and Event-Driven Architecture: Experience with Message Queues, Apache Kafka, and event sourcing techniques.
• Cloud and Container Orchestration: Familiarity with Kubernetes (K8s) and cloud environments.
• High-Availability Systems: Practical experience with designing high-availability and high-performance systems.
• Payment Systems: Background in payment system integrations or payment gateway development.

What we offer

• The skills and experience you bring add to our collective strength
• A fun, friendly and collaborative work culture where we guarantee there is never a dull day.

Byborg Enterprises is an equal employment opportunity employer. We consider individuals for employment based on their skills, abilities and experience. We thrive to attract and hire a strong, talented and diverse workforce, prohibiting discrimination based on race, color, religious or political beliefs, age, nationality, physical, mental or developmental disability, gender, sexual orientation.

DISCLAIMER: This job description is a summary of the primary duties and responsibilities of the job and position. It is not intended to be a comprehensive or all-inclusive listing of duties and responsibilities. Contents are subject to change at management's discretion.

NOTE: Byborg Enterprises SA does not accept unsolicited resumes from agencies. We consider any resume (CV) or biography received from an agency without prior approval from our Legal and Recruiting Department to be unsolicited, and such submissions will not be recognized for purposes of “ownership” of the candidate.

We are in it for the long haul so your future is safe with us.