At a Glance
- Tasks: Configure and integrate cloud-based communication systems for real-time workflows.
- Company: Join Custodia, a leader in cloud-native communication solutions.
- Benefits: Enjoy hybrid working, competitive salary, and hands-on experience in tech.
- Other info: Collaborative team environment with opportunities for growth and learning.
- Why this job: Be at the forefront of innovative tech, ensuring seamless application integration.
- Qualifications: Experience with enterprise communication systems and strong troubleshooting skills required.
The predicted salary is between 50000 - 65000 £ per year.
Knutsford (Hybrid) Monday, Wednesday & Friday office based. Tuesday & Friday work from home. Must have full right to work as this job is not suitable for sponsorship. Must drive as we are in a remote location within a 45 minute commute.
About Custodia / CC1 Custodia builds CC1, a cloud-based communications platform that integrates with enterprise systems and powers real-time communication workflows across distributed microservices. Our platform operates across:
- cloud-native microservice architecture (CC1)
- enterprise voice and communications systems
- third-party application integrations
- multi-tenant SaaS environments
- customer-like integration and validation setups
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)
What You’ll Be Doing
- 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 We’re Looking For
We are looking for someone who enjoys working across application configuration, system integration, and complex environments.
Essential
- 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
- 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
The Team Structure
Platform team manages infrastructure, and deployments Development team builds CC1 microservices QA team validates product behavior You will own the application integration and configuration layer that connects everything into a working system.
Why This Role Is Interesting
This role sits at the intersection of:
- a modern cloud-native application (CC1)
- enterprise communication systems
- real-world customer integration scenarios
You will not just maintain configurations—you will ensure that a complex ecosystem of applications and services works together as a reliable, testable platform.
Location & Working Style Based in Knutsford Hybrid working model Collaborative engineering environment
StudySmarter Expert Advice🤫
We think this is how you could land Application Integration Engineer (Voice & Platform Systems) in Knutsford
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Custodia or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Custodia.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Custodia.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Custodia that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Application Integration Engineer (Voice & Platform Systems) in Knutsford
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Custodia.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Custodia and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Custodia
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Custodia uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
