Javier Ramos
Principal Site Reliability Engineer at Navan
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJavier Ramos is a Principal Site Reliability Engineer with nine years of experience building and securing large-scale production systems, currently based in Amsterdam and leading reliability work at Navan through growth, rebranding, and an IPO. He blends deep security expertise—especially around secrets, certificates and HSM-backed cryptography—with SRE practices like SLO instrumentation and Terraform-driven infrastructure. His background includes kickstarting SRE at Elsevier and managing mission-critical payment and certificate services at Booking.com, where he contributed backend fixes to the well-known Netflix Lemur certificate manager. Comfortable across cloud, on-prem, and hybrid environments, he repeatedly delivers scalable, resilient platforms for global user bases. Known for pragmatic automation and observability, he also has hands-on roots in embedded and systems engineering from earlier roles that inform his operational rigor.
9 years of coding experience
13 years of employment as a software developer
Master of Science - MS, Computer Security and Intelligent Systems, Master of Science - MS, Computer Security and Intelligent Systems at Universitat Rovira i Virgili
English, Catalan, Spanish
Github Skills (17)
ssl10
python10
security10
tls129
apidoc9
tls139
cryptography9
aws9
api9
mtls9
libtls9
marshmallow8
hashicorp-vault8
restful-api7
api-design7
Programming languages (9)
Github contributions (5)
Netflix/lemur
Mar 2019 - Jul 2020
Repository for the Lemur Certificate Manager
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 6 PRs, 4 comments in 1 year 3 months
Contributions summary:Javier primarily contributed to the back-end logic and functionality of the Lemur Certificate Manager. Their work involved updating schemas, integrating with HashiCorp Vault for certificate storage, and modifying certificate validation processes. They also fixed a bug related to handling potential `NoneType` errors and refined authorization logic, indicating a focus on robust and reliable service operations. Furthermore, they made code changes related to CSR parsing and error handling, ensuring the service's resilience and data integrity.
pythonsslssl-certificatessecuritytls
jramosf/terraform-provider-cloudflare
Apr 2022 - Sep 2024
Cloudflare Terraform Provider
Contributions:6 pushes, 4 branches in 2 years 4 months
providerterraform-cloudflarecloudflareterraformterraform-provider
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