Identity API & Cloud IAM Developer

Square One Resources; Sheffield; Hybrid; GBP 74,000 - 97,000; Full time

Job summary

Square One Resources is seeking an Application Developer for a long-term contract with a tier one banking client. The role emphasises identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures at scale.

You will collaborate with tech leads, Cloud Security, DevOps and Application Engineering to design robust IAM automation and secure service integrations that support enterprise-level cloud operations.

Qualifications

• Experience with modern identity orchestration platforms (Auth0 Actions, Okta Workflows, WorkOS or SlashID).
• Strong programming skills in Python, Go, or Node.js for API/microservice development.
• Experience designing and deploying cloud-native APIs (Cloud Run, Cloud Functions, GKE).
• Deep knowledge of OAuth2, OIDC, JWT, SAML and identity federation patterns.

Responsibilities

• Design and implement IAM automation and identity lifecycle workflows.
• Develop secure service integrations across Google Cloud Platform and APIs.
• Collaborate with Cloud Security, DevOps and Application Engineering teams.

Skills

Auth0 Actions

Okta Workflows

Go/Node.js/Python

Cloud Run/Cloud Functions

GKE

Pub/Sub

OAuth2/OIDC/JWT

Terraform

API Gateways

Service Mesh

Tools

Terraform

Cloud Run

Cloud Functions

GKE

API Gateways

Job description

Square One Resources is seeking an Application Developer for a long-term contract with a tier one banking client. The role emphasises identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures at scale.

You will collaborate with tech leads, Cloud Security, DevOps and Application Engineering to design robust IAM automation and secure service integrations that support enterprise-level cloud operations.