Full Stack Developer

Join us in shaping the future of telecare technology. As a Developer, you'll help transform critical services into secure, scalable cloud-native applications, powering life-changing solutions for customers across the UK. Working with Node.js, REST APIs, and SIP communications, you'll build resilient, real-time systems that make a genuine difference every day.

️Hours: 35 hours per week, Are you passionate about building modern cloud applications that make a real difference? As a Developer, you'll play a key role in transforming Appello's telecare platform, helping to migrate critical services from legacy on-premise systems to secure, scalable, cloud-native solutions.

Working with Node.js, REST APIs, real-time communications, and cloud technologies, you'll help create resilient systems that support life-critical telecare services, ensuring reliability, security, and performance for the people who depend on them every day.

What you'll be doing:

️ Modernising legacy applications by designing and delivering cloud-native services that are scalable, resilient, and highly available.

Building and enhancing REST APIs that support telecare services, device management, alarm handling, and real-time data processing.

Developing modern web applications and refactoring existing codebases using current development standards and best practices.

Supporting real-time communication services, helping to deliver low-latency, secure signalling and call control in a safety-critical environment.

️ Designing and managing data solutions, creating efficient data models and implementing caching, transactional processing, and state management.

Championing security and compliance, ensuring secure authentication, role-based access control, GDPR compliance, and robust data protection practices.

Driving quality and reliability through automated testing, integration testing, performance validation, and continuous improvement.

Improving observability and supportability with structured logging, monitoring, metrics, audit trails, and clear technical documentation.

Collaborating closely with architects, product owners, operations teams, and fellow developers to deliver innovative solutions and share knowledge.

You're a talented developer who enjoys building modern, scalable applications and solving complex technical challenges. You thrive in collaborative environments, take pride in writing high-quality code, and are passionate about creating secure, reliable services that make a real difference.

What you'll bring:

Strong experience with Node.js and Express, with a proven track record of developing and maintaining back-end services and REST APIs.

️ Experience building web applications using MVC architecture and modern development best practices.

️ Hands-on knowledge of cloud-based technologies, including databases, caching solutions, and CI/CD delivery pipelines.

A solid understanding of application security, including JWT authentication, secure API design, and data protection principles.

Knowledge of SIP communications, including signalling, registration, and authentication processes.

Experience designing resilient and scalable solutions, with a focus on performance, fault tolerance, and high availability.

️ Strong data management skills, including schema design, transactional updates, and working with MySQL, NoSQL, Redis, or similar technologies.

Excellent analytical and problem-solving skills, with the ability to diagnose issues and deliver effective solutions.

Strong communication skills, enabling you to work effectively with developers, architects, product owners, operations teams, and other stakeholders.

A degree in Computer Science, Software Engineering, or equivalent practical experience, alongside relevant Node.js development expertise.

It would be great if you also have:

Experience working in telecare, healthcare, or other safety-critical environments.

Knowledge of FreeSWITCH, Asterisk, SIP platforms, or CPaaS solutions such as Twilio or Vonage.

Experience with IoT technologies, MQTT, event-driven architectures, or device integrations.

️ Cloud certifications or experience with AWS, Azure, GCP, Kubernetes, ECS, or AKS.

Knowledge of advanced security concepts such as PKCE, JWE, SRTP, mutual TLS, or secure RTP proxying.

Experience mentoring and supporting other developers within high-performing engineering teams.

Pulled from the full job description

• Employee discount
• Employee assistance programme
• Free parking
• Company pension
• On-site parking, * 175 hours holiday pa plus bank holidays
• Medical Insurance - Individual Cover
• We offer you discounts on everything from groceries and shopping through to holidays, insurance, days out, restaurants and more
• 24/7 employee assistance programme with an easily accessible app!
• Family and friends' discounts on our services & products
• Pension Scheme, up to 4% Company matched
• Free on-site parking

This is an exciting time at the Appello group - we are a company on the move and now is a perfect time to join our team. You'll gain exceptional career opportunities and will be part of a company that is continuing to expand.