Full-Time Staff Software Engineer, Backend

Docler Holding is hiring a remote Full-Time Staff Software Engineer, Backend. The career level for this job opening is Expert and is accepting Luxembourg, Luxembourg based applicants remotely. Read complete job description before applying.

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Docler Holding

Job Title

Staff Software Engineer, Backend

Posted

Career Level

Full-Time

Career Level

Expert

Locations Accepted

Luxembourg, Luxembourg

Job Details

Staff-level role: Not just an expert coder, but a leader defining and owning backend architecture across multiple systems/domains. Drives engineering culture by mentoring others, shapes standards, and acts as a go-to for technical guidance, complex debugging, and high-stakes decision making.

Key Responsibilities:

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

Who You Are:

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

Nice-to-Haves:

  • 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) & event-driven architecture.
  • Working knowledge of GraphQL.

FAQs

What is the last date for applying to the job?

The deadline to apply for Full-Time Staff Software Engineer, Backend at Docler Holding is 10th of May 2025 . We consider jobs older than one month to have expired.

Which countries are accepted for this remote job?

This job accepts [ Luxembourg, Luxembourg ] applicants. .

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