Application Integration Engineer (Voice & Platform Systems)

Custodia is a UK based company, founded in 2017, with wider presence in North America, Europe and Asia both directly and through strategic partnerships.

 

Our current key offering is the CC1 (Compliance Cloud One) service which records, stores and normalizes any type of communications data. This includes many common platforms such as phone email, SMS, phone calls, Microsoft Teams, WhatsApp and WeChat amongst many others. This allows companies to communicate in a compliant manner, whilst driving greater data-driven insights from the data they already have to store.

 

We are looking for an Application Integration Engineer to own and evolve our internal integration and QA lab environment, ensuring CC1 and connected systems can be configured, integrated, and validated end-to-end in realistic scenarios.

The Role

This is a hands-on technical engineering role focused on making sure our application ecosystem works as a complete integrated solution.

 

You will be responsible for the configuration, integration, and reliability of:

 

  • the CC1 application (microservices and platform services)
  • third-party integrations
  • selected enterprise voice/communication systems

 

You will act as the technical owner of our integration lab environment, ensuring QA and R&D teams can rely on stable, realistic, and well-configured environments for validation and testing.

 

You will work closely with:

 

  • Platform/DevOps teams (infrastructure and deployments)
  • Software Engineering (microservices and product features)
  • QA teams (test execution and validation)
  • Product teams (end-to-end feature validation)

Key Responsibilities

Application & Platform Configuration (Core Focus)  

 

  • Configure CC1 application services across a microservice-based architecture
  • Manage application-level configuration (tenants, users, roles, routing, feature flags, etc.)
  • Integrate and configure third-party applications and services used by CC1
  • Maintain realistic multi-tenant environments that reflect customer deployments
  • Ensure end-to-end application behavior is consistent across environments

 

 

System Integration (Including Voice Platforms) 

 

  • Support integration with enterprise communication systems such as:
    • Cisco CUCM
    • Microsoft Teams Voice
    • Cisco Webex Calling
    • Other UC or contact center platforms where relevant
  • Understand key configuration concepts (routing, users, policies, dial plans, integration points)
  • Ensure correct end-to-end behavior between CC1 and external systems

 

 

Integration Lab Ownership 

 

  • Own and maintain the CC1 integration and QA lab environment
  • Ensure environments are stable, usable, and representative of real customer setups
  • Support QA teams in reproducing and investigating complex issues
  • Work with Engineering to validate new features in integrated environments

 

 

Technical Problem Solving & Collaboration 

 

  • Work closely with developers to understand microservice interactions and dependencies
  • Debug configuration and integration issues across multiple systems
  • Document setup procedures, configurations, and integration patterns
  • Help improve internal tooling and environment automation

What You Bring

 We are looking for someone who enjoys working across application configuration, system integration, and complex environments.

 

Essential (Must Have)

 

  • Experience with enterprise communication or complex application environments
  • Exposure to systems such as:
    • Cisco CUCM, Microsoft Teams Voice, Webex Calling, Avaya, Genesys, or similar
  • Strong understanding of application configuration concepts (users, routing, policies, tenants, etc.)
  • Comfortable working with distributed systems (logs, APIs, configuration tools)
  • Strong analytical and troubleshooting mindset

 

 

Nice to Have

 

  • Exposure to SIP-based systems (conceptual understanding is sufficient)
  • Experience with SaaS, microservices, or cloud-native applications
  • Understanding of authentication systems (OIDC, SAML, OAuth)
  • Basic scripting or automation (Bash, Python, etc.)

What You'll Learn

  • You will gain hands-on experience in:

    • cloud-native microservice architectures (CC1)
    • enterprise communication system integration
    • multi-tenant SaaS configuration and operations
    • real-world integration engineering across complex systems
    • debugging distributed application behavior end-to-end

What We Offer

  • Competitive salary
  • Private Health and Dental Care (BUPA)
  • Free On-Site Gym
  • Free access to Udemy
  • Employee Assistance Programme
  • Free parking
  • Smart Casual dress
  • Opportunities for professional growth and advancement
  • Dynamic and innovative work environment
  • Opportunity to make your mark in a high-growth industry
  • A beautiful office in the historic Cheshire town of Knutsford, with easily accessible public transport links to Manchester and Chester

This role is hybrid, based at our office in Knutsford.

 

To apply for this role, please send a covering letter and CV to careers@custodiatechnology.com