Application Developer

TESTQ Technologies LTD.; Sheffield; Hybrid; GBP 50,000 - 75,000; Full time

Job summary

TESTQ Technologies LTD. seeks a skilled Application Developer to build secure identity APIs, orchestrate identity lifecycles, and automate IAM workflows in a cloud-native environment.

You will design and deploy RESTful services on Google Cloud, integrate with providers like Auth0/Okta, and ensure security, scalability, and observability within agile teams.

Qualifications

• Experience with identity orchestration platforms and provisioning lifecycles.
• Strong Python/Go/Node.js API development skills.
• Experience deploying cloud-native APIs on Google Cloud Platform.
• Deep knowledge of OAuth2, OIDC, JWT, and SAML.
• Terraform or IaC tooling for IAM and API services.
• Experience with API gateways or service mesh patterns.
• Familiarity with RBAC, workload identity, and secrets management.
• Awareness of SOC2, ISO27001, PCI, HIPAA compliance.

Responsibilities

• Design identity orchestration for provisioning and lifecycle events.
• Develop secure RESTful APIs and backend services for identity governance.
• Integrate with external identity providers and internal services.
• Build Pub/Sub pipelines for asynchronous identity workflows.
• Implement IAM automation, CI/CD deployments, and testing.
• Ensure API security, observability, and reliability.

Skills

Python

Go

Node.js

OAuth2 / OIDC

JWT / SAML

Cloud-native APIs

Security mindset

Analytical thinking

Agile / team collaboration

Education

Bachelor’s degree in CS/Engineering

Tools

Auth0

Okta

WorkOS

SlashID

Terraform

Cloud Run

Cloud Functions

GKE

Pub/Sub

Kubernetes

Secret Manager

Job description

• We are looking for a highly skilled Application Developer with strong expertise in identity API development data ingestion and transformation and eventdriven PubSub architectures This role focuses on building secure scalable identity and access workflows across Google Cloud Platform integrating identity services with custom APIs PubSub pipelines and cloudnative applications
• You will collaborate closely with tech leads Cloud Security DevOps and Application Engineering teams to design and implement robust IAM automation identity lifecycle workflows and secure service integrations that support enterpriselevel cloud and Identity operations

Key Responsibilities

• 1Identity Orchestration
• Design and implement identity flows for provisioning deprovisioning and orchestration of identity lifecycle events
• Integrate with Cloud Identity Services ServiceNow and internal services to streamline orchestrate identity provisioning and identity lifecycle management
• Build policybased orchestration workflows for adaptive authentication and contextaware access using industry standards like OPA
• 2API Development
• Design build and secure RESTful APIs and backend services supporting identity provisioning and governance workflows
• Integrate APIs with our new authentication service for token validation user sessions and applicationlevel authorization
• Build and document internal SDKs middleware and shared libraries for consistent IAM logic across services
• Ensure API security performance reliability resilience and observability
• Develop pipelines where API events publish to PubSub for asynchronous workflows such as
• oautomated identity lifecycle tasks
• oaccess review event triggers
• ologging and audit forwarding
• osecurity anomaly detection
• Build Cloud Functions Cloud Run microservices or containerized services to process PubSub messages
• Implement robust eventprocessing patterns including retries idempotency DLQs and structured logging
• 4Automation Infrastructure as Code
• Build and maintain Terraform modules for IAM API services PubSubtopics workloads and permissions
• Automate deployment and validation of identity and access configurations via CICD pipelines
• Implement automated testing for IAM policies and API behaviour
• Troubleshoot identity access and API workflow issues across distributed systems
• Provide technical guidance to engineering teams on secure API design IAM best practices and identity workflows
• Work with security teams during audits compliance checks and incident investigations

Required Skills Experience

Technical Expertise

• Proven experience with modern identity orchestration platforms Auth0 Actions Okta Workflows WorkOS or SlashID
• Strong programming skills in Python Go or Nodejs for API and microservice development
• Experience designing and deploying cloudnative APIs Cloud Run Cloud Functions GKE
• Deep understanding of eventdriven architectures PubSub message processing and workflow automation
• Strong knowledge of OAuth2 OIDC JWT SAML and identity federation patterns
• Proficiency in Terraform or equivalent IaC tools
• Experience using API gateways reverse proxies or service mesh technologies
• Soft Skills
• Analytical thinker with strong debugging and rootcause analysis abilities
• Clear communication skills with the ability to collaborate across engineering security and operations teams
• Ownership mindset with a securityfirst mentality and attention to detail
• Ability to work in an agile fastpaced environment
• Experience with additional identity providers Okta Azure AD Ping Identity
• Familiarity with Kubernetes GKE RBAC workload identity
• Experience using Secret Manager Vault or other secrets management tools
• Knowledge of compliance frameworks SOC2 ISO 27001 PCI HIPAA
• Education
• Bachelors degree in computer science Engineering Information Security or equivalent handson experience