Staff Software Engineer, Backend

Company Description

Welcome to Byborg! As a leader in IT and streaming solutions, we deliver high-quality services for 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 and today our platforms serve millions of users daily.

Working with a wide range of cutting-edge technologies and constantly pushing the envelope in AI experimentation, we ensure robust and reliable performance through our powerful network of data centers. Furthermore, our advanced design and testing methods, including Behavior-Driven Development, set us apart.

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!

Job Description

This is a high-impact, hands-on role where you'll independently lead system-level backend projects, from design through production. You’ll architect services for scalability and performance, drive design reviews, contribute to the codebase, and help guide junior and senior engineers. Your work will directly affect the reliability, maintainability, and evolution of systems handling hundreds of thousands of concurrent users. 

What Makes This Role Special 

This is a Staff-level role — not just an expert coder, but a leader who can: 

• Define and own backend architecture across multiple systems or domains. 
• Drive engineering culture by mentoring others and shaping standards. 
• Be a go-to person for technical guidance, complex debugging, and high-stakes decision making. 
• Influence not only what we build, but how we build it — from tools to processes. 

Key Responsibilities: 

• Design and implement robust, scalable, high-performance backend systems, APIs, and services using best-in-class architecture practices. 
• Take ownership of system-wide components, from planning to deployment and monitoring. 
• Collaborate closely with product owners, frontend teams, DevOps, and architects to translate business needs into engineering solutions. 
• Review and approve complex code changes, ensuring maintainability, performance, and security. 
• Lead and participate in system-wide debugging, profiling, and performance tuning efforts. 
• Drive the technical direction of backend projects, including the selection of frameworks, design of APIs, and service boundaries. 
• Mentor engineers in clean code practices, domain-driven design, and performance-first development. 
• Support the team during on-call duties and help lead effective incident responses and postmortems. 
• Help define and enforce technical standards, review pull requests, and uphold best practices in version control, CI/CD, and automated testing. 
• Contribute to the evolution of development pipelines, test strategies, and deployment tooling. 
• Assist in recruitment by conducting technical interviews and coding assessments.

Qualifications

Who You Are: 

• Bachelor’s or Master’s degree in Computer Science, Engineering, or equivalent practical experience. 
• 8+ years of backend development experience, including designing distributed systems. 
• Strong command of OOP principles, software architecture, and design patterns. 
• Advanced knowledge and hands-on experience with PHP — experience in other backend languages is a plus. 
• Proven track record working with microservices and APIs 
• Deep understanding of high-concurrency systems, load balancing, and asynchronous processing. 
• Strong experience with databases (MySQL/PostgreSQL) and caching strategies. 
• Experience with message brokers like RabbitMQ, 
• Skilled in performance profiling, query optimization, and system diagnostics. 
• Familiar with Docker, Kubernetes, and container-based development environments. 
• Experience in CI/CD, automated deployments, and infrastructure-as-code workflows. 
• Excellent debugging and troubleshooting skills in production environments. 

Nice-to-Haves / Preferred Skills: 

• Familiarity with real-time data streaming. 
• Experience designing APIs consumed by frontend-heavy applications (React, mobile). 
• Deep knowledge of security best practices in distributed environments. 
• Contributions to open-source backend frameworks, or internal libraries/tools. 
• Exposure to monitoring/observability stacks (like Grafana). 
• Experience with domain-driven design (DDD) and event driven architecture. 
• Working knowledge of GraphQL 

Additional Information

What we offer you

• An exceptional compensation package along with relocation support to help you move to the Grand Duchy.
• Your health is our wealth: private health insurance and free gym membership.
• On top of the minimum 26 vacation days, we also provide additional days the longer you work for us.
• We offer breakfast for our employees every day to help them begin the workday.
• The opportunity to see your work directly contribute to the success of the company.
• When you grow, we grow: You have the chance to attend events, meetups, and other perks for your professional growth.
• You’re joining a family and you are going to look the part! We give out company-branded merchandise and clothes to every single new joiner.

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. 

During the recruitment process candidates will be requested to provide with a recent criminal record extract for background screening purpose.

NOTE: Byborg Enterprises 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.