Full time - On-site in Paris / London, or full remote from Western EU

Kiln is now part of the prestigious French Government program #FT120 from La French Tech! 🎉 🇫🇷

As a Senior Backend Engineer at Kiln, you will join our Software Team, composed of 14 engineers (Backend, Frontend, QA) split into 3 squads, to build the future of our SaaS/API-first products [https://docs.kiln.fi/v1/]. You will report to our Head of Software, and collaborate with the Product, Infrastructure and Smart-Contract teams to work on the various products that Kiln's offers.

Responsibilities:

• Contribute to architectural decisions and technical strategy.

• Develop and implement software features in our Golang services (data aggregators, APIs, Blockchain Transaction crafting, ...).

• Take part in automation, testing, and CI/CD processes.

• Participate in code review, bug fixing, code maintenance.

• Ensure that our services communicate with each other seamlessly, have minimal downtime, and recover quickly.

• Make sure we respect any software security norms (Kiln is a SOC 2 Type 1 and Type 2 company).

• Actively suggest continuous improvement of Kiln's platform and engineering practices.

• Communicate with other Kiln teams to help them understand the Software roadmap and technical challenges. 

Stack: 

• Software: Go, TypeScript, PostgreSQL, REST API…

• Smart-contract: Solidity, Foundry

• Infrastructure: GCP, AWS, Kubernetes

• 100+ Go services processing data for 15+ blockchains

• 200Gb of raw data processed every day

• 2Tb of staking data available through our Kiln Connect API

Requirements

• +6 years of experience as Software Engineer (Backend), designing, building, and deploying user-facing, infrastructure-related, and/or API-based products.

• +3 years of Golang programming — professional experience in a production environment.

• Familiar with container/orchestrator technologies (Docker/Kubernetes), and Continuous Integration.

• Ability to ship opinionated architectural choices and code, and to share software best practices.

• Proven interest in Web3, blockchain, cryptocurrency and smart contracts - check our Tech Blog [https://www.kiln.fi/blog] and Open-Source Contribution [https://www.kiln.fi/open-source] 

Fluent (written and spoken) in French and English.

Nice-to-have:

• Previous experience working within a certified environment (SOC2, ISO 27001, PCI DSS, HIPAA...)

• Genuine interest in Web3, blockchain, cryptocurrency and smart contracts - check our Tech Blog [https://www.kiln.fi/blog] and Open-Source Contribution [https://www.kiln.fi/open-source] 

About Kiln:

Kiln is the leading enterprise-grade rewards platform that enables institutional customers to stake assets and integrate staking & DeFi functionality into their offerings. Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.

With $11+ billion in crypto assets staked through our platform, Kiln has established a strong presence on Ethereum, managing over 4.3% of the network through 45,000+ validators — all with zero slashing events.

Kiln serves more than 140 leading customers, including Binance, BitPanda, Bitgo, Fireblocks, VanEck, and TrustWallet.

Our team of 9