As part of its strong growth, Ledger – a technology leader in digital asset and crypto-security solutions – is looking for a Senior Back-end developer. You will be responsible for developing and scaling a backend application to allow hundreds thousand people to process their transaction in the crypto-currency world.

The Ledger Vault is a SaaS solution addressing the need to safeguard very large and diversified amounts of cryptocurrencies while mitigating both IT and physical assault threats. It’s an enterprise grade cold storage solution based on “HSM” (Hardware Security Module) and hardware authenticators. It’s a turnkey SaaS hardware / Software suite enabling multi-cryptocurrency, multi-signature, rate limiting and time locking.

We are looking for talents to build a solid and scalable platform for BtoB financial market

Missions

• Develop a technological stack to secure transactions in a BtoB Saas platform
• Optimize the overall performance of the application.
• Audit our current technological stack.
• Conduct benchmarks to identify bottlenecks.
• Creation of the software architecture of the blockchain explorer.
• Develop blockchain abstraction technology to easily integrate new crypto-currencies.
• Set up monitoring for server applications to detect unexpected failures / behavior.
• Set up continuous integration to deploy / test the Vault platform

Required profile

• Engineer profile with at least 3 years of experience in Python/ Scala.
• Good knowledge of *nix operating systems.
• Open source lover (90% of our code is available on Github)
• Experience with continuous integration solutions.
• Capable of self-training and monitoring of backend-oriented technologies.
• Having a strong interest in cryptocurrencies and wishing to work with blockchain technology.
• Knowledge of AWS solutions is appreciated.