Senior Software Engineer

SereneDB is building the world’s first distributed, real-time search database — bringing search and analytical processing together for blazing-fast performance and eliminating data duplication. We aim at revolutionizing the traditional search space, by providing consistent search experience with frequent updates and a postgres-compatible layer for ease of use. Our mission is to provide an easy-to-use unified search and analytics solution to change the way applications store and retrieve their data.  And yes — we’re open-sourcing our core technology.

Quality First

• Write comprehensive tests with coverage validation
• Enforce correctness using sanitizers, fuzzing, and static analyzers
• Benchmark rigorously – from low-level functions to end-to-end competitor comparisons
• Profile systematically to identify and optimize bottlenecks and critical paths

SOTA Search Engine -- build the fastest, most flexible search engine

• Implement cutting-edge compression & aggregation
• Integrate vector search for hybrid full-text and vector queries

RocksDB Optimizations - redefine storage efficiency for search & analytics

• Design disk and memory layouts for hybrid workloads
• Tune compaction, caching, and transaction handling

Optimize analytical query performance through tight Velox integration

• Wire Velox’s execution engine to SereneDB’s storage & search
• Optimize query planning & vectorized execution

Postgres Compatibility -- make SereneDB feel like home for Postgres users

• Extend Postgres wire protocol support
• Extend Postgres SQL dialect support

Requirements:

• BS in CS and at least 3 YoE or equivalent experience
• Strong algorithmic and systems programming skills
• Solid expertise in modern C++
• Collaborative mindset — you’re not just brilliant, but also easy to work with
• Fluency in the English language

Bonus points:

• Experience with RocksDB, Velox or Postgres
• Contributions to open-source databases or search engines
• Advanced knowledge of at least one of the following: network, memory and disk subsystems, concurrency

• Competitive salary
• Equity in the company
• Flexible remote-first work environment
• Flexible Time off
• Employee-driven international mobility (within certain countries and timelines and subject to role requirements, time zones and work permit considerations)

Location: Berlin