Achille Roussel Email & Phone Number

San Francisco, California, United States

San Francisco

San Francisco Bay Area

San Francisco, California

- Golang, Node.js, Terraform- Designed, developed, and maintained the core delivery engine of Segment's data pipeline- AWS infrastructure cost optimization, improving gross margins by multiple points- Standardized infrastructure development and operations across the engineering org- Built a cost efficient observability platform to gain insight into Segment's multi-tenant infrastructure- Defined and implemented reliability best practices across the engineering org- Core responder to critical security incident- Developed high performance Go libraries adopted throughout Segment's data plane- Mentored younger engineers towards excellence- Initiated, released, and maintained multiple open-source projects

San Francisco, California

- Golang, Python, Javascript, C and Java Programming- Designed and built a distributed live chat infrastructure from scratch- Designed and built live chat client SDKs in Python and Javascript (Browser and Node.js support)- Designed and built a query language for MongoDB serving 100% of the chat infrastructure- Managed a complete data migration from PostgreSQL to MongoDB- Implemented dynamic service discovery via Consul on all service of the infrastructure- Implemented metrics collectors for Prometheus to get deep insights into services health- Implemented Travis CI integrations for all code repositories used on the infrastructure- Built infrastructure setup and deployment tools using Ansible- Modified the infrastructure to use Docker containers to run all services- Lead the infrastructure team (5 engineers)- Developed MessagePack implementations for Golang, Javascript and Java

Menlo Park, California

Production Engineer on the messaging real time infrastructure.- Python programming- Java programming- Objective-C programming- Network performance optimizations (tuning TCP stack)- Data efficiency optimizations (real time data compression)- Test-driven development- Performance critical applications- Linux system administration- Working on one of the biggest computing infrastructure in the world

San Francisco

Software engineer in the video team.Developing and maintaining a scalable live video system serving over 35 million users per month.- Python programming- C programming- PostgreSQL programming- Video and audio encoding (ffmpeg / h264 / faac)- Linux system administration- Managing a world wide infrastructure- Startup experience

Sophia-Antipolis

Created a Facebook application designed to let people evaluate their personality through a set of tests.- Facebook graph API- PHP programming- HTML and Javascript programming

Nice Area, France

Help out younger students learning programming through C and C++, act as a resource to help them understand the key concepts and lead them toward information to understand how to succeed in their projects. Also supervised review of their terminated projects, providing insights and advises.

Bachelor, Computer Science, Bachelor

Activities and Societies: C, C++, PHP, UNIX, Windows, Networks, Games, Communication, Foreign Exchange, Hackathons, Enrolling events.

Mathematics And Computer Science

Activities and Societies: C, Java, Scheme, Algorithms and Data Structures, Math, Electronics