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Kong API Engineer (urgent start)

Uniting PeopleLondon🇬🇧United KingdomPosted 11 Sept 2026

Why This Role Stands Out

This role offers a fantastic opportunity to deepen your API management and cloud-native expertise within a major banking environment, with a competitive daily rate of £425. You'll thrive here if you have strong Golang or Lua programming skills and a solid background in API security and platforms like Kong, making this an excellent chance to contribute to impactful projects. Apply now to leverage your experience in this dynamic, hands-on engineering position.

Quick Overview

Seniority
Mid Senior
Employment type
Temporary/Casual
Work mode
On Site
Location
London, United Kingdom
LuaAPI GatewayAWSOAuthGoJWTKubernetesTerraform

Job Description

Kong API Engineer

Location: London - 5 days per week onsite
Contract: 6 months
Rate: £425 per day
IR35: Inside IR35

We are looking for an experienced Kong API Engineer to join a major banking environment in London. This is a hands-on engineering role focused on API management, API security and cloud-native technologies.

Banking or financial services experience is essential.

Key Skills & Experience Required

  • Strong programming experience in Golang and/or Lua

  • Hands-on experience with API Management platforms, ideally Kong API Gateway

  • Strong understanding of RESTful APIs and the OpenAPI Specification (OAS)

  • Hands-on API security experience, including:

    • OAuth 2.0

    • OpenID Connect (OIDC)

    • JWT validation

    • Key Authentication

    • Mutual TLS (mTLS)

  • Strong cloud-native engineering experience

  • Experience across CI/CD, Kubernetes and Terraform

Desirable Skills

  • AWS experience, including ECS, EKS and MSK

  • Deep hands-on experience with Kong API Gateway

  • Strong Golang and/or Lua development skills

This is an excellent opportunity for a strong API Engineer to work on a major banking programme in a highly technical, hands-on environment.

Please note: This role requires 5 days per week onsite in London and candidates must have banking/financial services experience.

Rate: £425/day Inside IR35 | 6-month contract

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