Senior / Principal Backend Software Engineer
Location: Remote or Hybrid (Athens, Greece)
Salary: €4,000–€6,000 gross per month
We are hiring Senior Backend Engineers who thrive in building scalable, high-performance systems. You will help shape critical backend services used by millions across customer-facing products, internal applications, and large distributed environments.
You will work side by side with product and engineering teams to deliver resilient, secure, and well-structured platforms. At Principal level, your impact also includes guiding engineering decisions, coaching others, and uplifting technical quality across the organisation.
What you will do
- Design and implement backend services, APIs, and data flows
- Lead architecture and development of new features from idea to production
- Enhance system performance, scalability, and fault tolerance
- Work with microservices, message-driven architectures, and async processing
- Produce clean, reusable, and well-tested code
- Support and mentor other engineers through knowledge sharing and reviews
- Contribute to high engineering standards and long-term technical strategy
What you bring
- Proven expertise in backend development
- Experience with any modern backend language considered (Java, .NET, Kotlin, PHP, Go, etc.)
- Willingness to work with our current tech stack: .NET / C#
- Solid knowledge of distributed systems and microservices
- Familiarity with messaging platforms such as Kafka or RabbitMQ
- Experience in Agile environments
- Performance optimization skills including concurrency and async programming
- Experience with observability tooling (monitoring, metrics, logging)
- Ability to take ownership of complex tasks and deliver high-quality outcomes
- Fluency in English
Nice to have
- Experience with event-driven or reactive architectures
- Engineering mentorship or architectural leadership
- Deep understanding of design patterns and modern software practices
What we offer
- Competitive salary with performance-based bonus
- Hybrid or remote flexibility based from Athens
- Private health insurance including family cover
- Daily travel and meal allowance
- Continuous learning and career development opportunities