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Senior Backend Software Engineer - PHP AND NodeJS

Fandom · Poznan, Poland

onsitefull-timesenior levelPLN 205k – PLN 274k

About this role

About this Role

We are seeking a highly skilled Senior Software Engineer to be a driving force behind our technical solutions and a core contributor to our engineering team. In this role, you will go beyond just writing code - you will drive technical discussions, design scalable system architectures from the ground up, and elevate the team's engineering standards.

We cultivate a "polyglot" engineering culture. While your core strength may lie in specific languages, you must be flexible enough to explore and support the variety of tools and legacy systems our platforms are built on. You will act as a bridge between technical and business teams, ensuring our architecture supports future growth while maintaining high performance.

You Will...

  • Drive System Architecture: Lead the design and implementation of system components and services, ensuring scalability, maintainability, and adaptability for future growth.
  • Optimize Performance: Identify system bottlenecks, solve complex technical problems, and propose architecture optimizations to improve overall system health.
  • Elevate Engineering Standards: Drive improvements in code quality through refactoring, introducing new tools, and leading rigorous peer reviews. Enforce team standards for testing, automation, and deployment pipelines.
  • Lead Cross-Functional Initiatives: Act as a key technical partner for cross-functional teams (Product, Data, etc.), translating technical needs into clear business outcomes and taking ownership of shared projects.
  • Deliver Iterative Solutions: Break down large, complex projects into smaller, manageable, and iterative steps to ensure consistent delivery.
  • Mentor & Share Knowledge: Guide and mentor less experienced engineers, deliver constructive feedback, and share technical knowledge across the company (e.g., via tech blogs, presentations).

You Have...

  • Experience: 5+ years of software engineering experience with a strong track record of designing and delivering complex, scalable backend systems or services.
  • Technical Proficiency: Deep expertise in one or more core technical areas (e.g., web performance, security, specific stacks) with a strong command of PHP and NodeJS. 
  • Systems Thinking: Proven ability to design components from the ground up and conduct architectural reviews.
  • Engineering Excellence: Extensive experience with CI/CD pipelines, automated testing frameworks, and enforcing coding best practices.
  • Versatility: A willingness to work across different tech stacks, adapt to a polyglot environment, and support or modernize legacy codebases.
  • Communication: Exceptional communication skills with the ability to align engineering goals with product and business strategies. Fluency in English.

Bonus Points...

  • Ad Tech Expertise: Familiarity with programmatic ad systems, optimization techniques, header bidding (Prebid), Google Ad Manager (GAM), or cookie-less tracking.
  • Experience with Java, Python or SQL
  • Experience with user privacy regulations (GDPR, CCPA, IAB TCF) and Consent Management Platforms (like OneTrust).
  • Experience with monitoring and logging tools (e.g., Datadog, Prometheus, Grafana, Superset).
  • Experience working with CDNs, caching strategies, and VCL.

Benefits & Perks

  • Yearly salary bands = 205,301- 273,737 PLN
  • MacBook Pro and all the gear you need for work
  • Free access to a multitude of popular online courses and books sponsored by our company
  • Company stock options
  • Company swag packages
  • Cafeteria Benefit Program (including private medical care, gym membership, shopping/wellness bonus, etc.)
  • VTO (Voluntary Time Off) - a day off every quarter for volunteering non-profit
  • Frequent team bonding events
  • Flexible work hours & time-off
  • Employee Interest and Hobby Groups supported by our company
  • Open, energetic and fan-focused, international work environment

About Fandom

Fandom is the world’s largest fan platform where fans immerse themselves in imagined worlds across entertainment and gaming. Reaching more than 350 million unique visitors per month and hosting more than 250,000 wikis, Fandom is the #1 source for in-depth information on pop culture, gaming, TV and film, where fans learn about and celebrate their favorite fandoms. Fandom’s Gaming division manages the online video game retailer Fanatical. Fandom Productions, the content arm of Fandom, enhances the fan experience through curated editorial coverage and branded content from trusted and established publishing brands Gamespot, TV Guide and Metacritic, along with its Emmy-nominated Honest Trailers and the weekly video news program The Loop. For more information follow @getfandom or visit: www.fandom.com.

Fandom is an equal opportunity employer. Fandom values diversity, and all employment decisions are made on the basis of job requirements and individual qualifications.

#LI-AM1

About Fandom

About Fandom Fandom is a global entertainment media brand powered by fan passion. Fandom has a global audience of almost 300 million monthly unique users and encompasses over 400,000 fan communities. We currently feature more than 55 million pages of content, inclusive of video. Our Fandom values are: We serve a global community. Connection with our fans, creators, and partners is at our core, and it’s grounded by our active efforts of inclusion. We build experiences. We imagine, improve, and deliver solutions. We bring joy. We celebrate our fandoms, our teammates, and the work we do.

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