Roi Lipman
CTO & Co-founder at Redis
Israel
Summary
🤩
Rockstar🎓
Top SchoolRoi Lipman is a seasoned technology leader and co-founder with 11 years of engineering experience, currently serving as CTO of FalkorDB while holding senior technical roles at Redis. He specializes in high-performance backend systems and distributed databases, contributing notable low-level enhancements to Redis and related projects (including KeyDB and RedisGraph) that improve module APIs, replication/context flags, and non-blocking execution. Roi combines hands-on systems programming with team leadership—having led engineering teams at Redis and served as a software architect—bringing production-grade reliability to graph and in-memory data platforms. Based in Israel, he has a track record of shipping performance-focused features like bulk graph inserts and advanced response primitives that are not obvious from a typical CTO bio. His background spans startups and enterprise security companies, giving him a pragmatic approach to productizing complex infrastructure.
11 years of coding experience
10 years of employment as a software developer
Open Univ
English, Hebrew
Stackoverflow
869reputation
16kreached
37answers
3questions
Github Skills (33)
caching10
key-value-store10
apidoc10
redis10
package-development10
plugin-development10
databases10
c1110
graph-database10
data-structure10
c1710
api10
data-structures10
disk-cache10
object-cache10
Programming languages (12)
Github contributions (5)
RedisGraph/RedisGraph
Feb 2018 - Jan 2023
A graph database as a Redis module
Role in this project:
Back-end Developer
Back-end DeveloperContributions:41 releases, 1546 reviews, 700 commits in 4 years 11 months
Contributions summary:Roi's commits focused on implementing features within the RedisGraph module, specifically involving dependencies for GraphBLAS and the creation of new functionalities. They also worked on implementing a bulk insert capability, improving graph data loading and enabling filtering within the graph by creating the index, with the intent of improving the overall performance and reliability of the graph database.
bigtableredisnosqlredis-modulegraphdatabase
redis/redis
Mar 2019 - Sep 2020
Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes, Streams, HyperLogLogs, Bitmaps.
Role in this project:Back-end Developer
Back-end DeveloperContributions:9 commits, 8 PRs, 7 comments in 1 year 6 months
Contributions summary:Roi primarily contributed to the Redis module API, introducing new functionalities for handling responses to clients. They added methods for replying with null arrays, empty arrays, empty strings, and verbatim strings. The user also extended the REDISMODULE_CTX_FLAGS to indicate context details such as replication status and loading state, and implemented non-blocking GIL acquisition. These changes enhance the module's capabilities and address replication and loading states.
memorystreamsin-memory-databasememory-databasedata-model
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.