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C/C++ Senior Software Engineer - Redis Flex - Bulgaria

Backend Developer • Senior • Remote • Full-time • 📍 Bulgaria

A C/C++ Senior Software Engineer role joining the new Redis Flex engineering team in Sofia, building a high-performance hybrid storage engine from the ground up. Redis Flex pushes Redis beyond memory limits by integrating RAM and Flash to support massive datasets without sacrificing performance. The work sits at the intersection of Redis Core, storage engines (Speedb) and large-scale system design.

Stack

Responsibilities

  • Design, develop and optimize core components of the Redis Flex hybrid storage engine
  • Work across Redis Core and the flash storage layer (Speedb) for high-performance solutions
  • Solve deep system challenges such as data placement, eviction policies, persistence and consistency
  • Write efficient, reliable and maintainable C/C++ code for Linux environments
  • Collaborate with engineers across Core, Cloud, Performance and customer-facing teams

Requirements

  • 5+ years building production-grade systems with strong hands-on C/C++ development on Linux
  • Strong systems programming background (memory management, concurrency, performance optimization)
  • Experience with storage systems, databases or data-intensive applications
  • Ability to navigate complex system trade-offs: latency, throughput, durability and cost

Nice to have

  • Experience with LSM-based storage engines (e.g. RocksDB, Speedb)
  • Background in hybrid storage systems (memory + disk/flash)
  • Familiarity with NoSQL databases or distributed systems
  • Experience with large-scale, high-throughput data platforms

Soft skills

Strong problem-solving skillsProactive, ownership-driven mindsetGood communication skillsAbility to collaborate across teams

What we offer

  • Competitive compensation with salary and equity grants
  • 25 days of vacation time
  • Hybrid working options from home and office
  • Home internet & phone allowance plus one-time home-office setup allowance
  • Health, dental, life and critical illness insurance
  • Lunch and snacks in the office and a Multisport/CoolFit card
Languages: angol