PL Network


Senior BackEnd R&D Software Engineer



Software Engineering
Paris, France
Posted on Sunday, May 5, 2024

Cryptio is an enterprise-grade crypto back-office platform. Our software helps financial institutions, corporates and crypto-native companies navigate the fragmented digital-asset landscape with confidence. We are a Series-A company, backed by tier-1 crypto and non crypto investors: Point Nine, BlueYard, Tim Draper, Alven, Aave, Consensys, Outlier Ventures. Some of our clients include top crypto companies like Uniswap or Metamask as well as banks and governments.

We're tackling one of the biggest challenges in crypto right now - building the infrastructure to help institutional adoption. And we're playing to win.


We are a remote-first company, you can choose where you work from (CET + / - 2h). However, you’ll be asked to come into either the London or the Paris office for your onboarding (we’ll arrange everything).


Cryptio is looking for a senior back-end software engineer interested in working on large scale data challenges, computational streaming and dataflow processing.

You will join a team of talented engineers working on Cryptio’s toughest technical challenges. The mission of this team is to build and maintain technical primitives enabling Cryptio’s scaling. Our ambition is to build a digital asset back-office platform which scales with the most demanding use cases. Blockchains and exchanges are scaling, reporting needs to follow.

You will join a high impact team focusing on performance and shaping the future of back-office and reporting for businesses with intensive crypto use cases.

Our stack and core technologies:

  • PostgreSQL (we stream data coming from a PostgreSQL database)
  • Rust programming language
  • High performance stream processing and search libraries
  • Key-value data store


  • Write production-grade Rust
  • Contribute to our data processing and streaming pipeline
  • Develop new features and improve the performance of existing ones
  • Work with the team lead and the CTO to refine the team’s roadmap and take key technical / architectural decisions
  • Write documentation and tests


  • 5+ years of experience writing software
  • Some experience with large scale data management
  • Some experience with stream processing / computational streaming
  • Some experience with Rust or C++
  • Familiar with data structures (B-tree, LSM…)
  • Familiar with databases data models
  • Great computer science culture
  • Impeccable spoken and written English
  • Great communication, with both technical and non-technical stakeholders

Nice To Have

  • Familiar with key / value databases
  • Familiar with PostgreSQL Change Data Capture (CDC) mechanisms
  • Familiar with gRPC API development
  • Some experience with distributed and fault-tolerant systems
  • Prior experience working in a start-up / fast-paced environment


Remote, anywhere in the world. You are welcome to work from our London or Paris offices if you wish.