Envoy API Engineer

Q1 Technologies, Inc.; Glasgow; On-site; GBP 70,000 - 100,000; Full time

Job summary

Q1 Technologies, Inc. is seeking an experienced backend engineer with strong API design and gateway security expertise. The candidate will work with Golang or Java, implementing authentication and authorization at the gateway using OAuth 2.0, OIDC, JWT, and mutual TLS.

Expect hands-on DevOps involvement across CI/CD pipelines and Kubernetes-based environments. Proficiency in OpenAPI specs and experience with Envoy Proxy or Envoy Gateway are highly valued.

Qualifications

• Proficient in one or more backend languages (Golang/Java).
• Experience with Envoy Proxy or Envoy Gateway.
• Strong understanding of REST APIs via OpenAPI Spec.
• Hands-on authn/authz at gateway level: OAuth 2.0, OIDC, JWT, and mTLS.
• DevOps toolchain proficiency: CI/CD, Kubernetes, Terraform.

Skills

Golang

Java

Envoy

OpenAPI

OAuth 2.0

OIDC

JWT

mTLS

CI/CD

Kubernetes

Terraform

Job description

Required qualifications, capabilities, and skills

• Programming languages: Advanced proficiency in one or more programming languages — Golang or Java.
• Envoy: Professional experience with Envoy Proxy or Envoy Gateway.
• API design: Strong understanding of the OpenAPI Specification (OAS) for RESTful APIs.
• Authentication & authorization: Hands-on experience implementing authentication and authorization at the gateway, including OAuth 2.0, OpenID Connect (OIDC), JWT validation, and mutual TLS (mTLS).
• DevOps toolchain: Expertise across the DevOps toolchain, including CI/CD, Kubernetes, and Terraform.