> Markdown version of [/jobs/ext/1418820-application-support-engineer](https://www.wearedevelopers.com/jobs/ext/1418820-application-support-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Support Engineer - **Company:** QCS - **Location:** London, UK - **Experience:** Experienced - **Salary:** £38,889.0 - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), JIRA, Microsoft Azure, C Sharp (Programming Language), Cascading Style Sheets (CSS), Software as a Service, Data Integrity, JQuery, MySQL, Model View Controller (MVC), Salesforce.Com, Software Engineering, SQL Databases, Web Applications, Reliability of Systems, Stripe, Enterprise Integration, Cosmos DB, Asp.net Web Forms, SQL Server Management Studio (SSMS) - **Published:** July 24, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5811757934 ## About the Role * A minimum of 3 years' experience in Application Support, Technical Support, Software Development, or a similar technical role, including experience supporting SaaS or web-based applications. * Strong analytical and troubleshooting skills, with proven experience investigating complex technical issues and identifying root causes. * Working knowledge of C#, MVC, ASP.NET Web Forms, SQL, JavaScript, jQuery, HTML, and CSS, alongside a solid understanding of full-stack application architecture. * Experience working in Agile/Scrum environments, with the ability to collaborate effectively across Product, Engineering, Customer Success, and Operations teams. * Proven ability to manage multiple priorities, meet SLAs, and maintain high standards of quality and accuracy in a fast-paced environment. * Excellent written and verbal communication skills, with the ability to explain technical concepts clearly to both technical and non-technical audiences.Experience with technologies such as Jira, Salesforce, MySQL, SQL Server Management Studio (SSMS), Cosmos DB, Auth0, Azure Storage Explorer, or similar platforms. * A sincere interest in using technology to improve healthcare and social care outcomes, alongside a proactive, customer-focused approach to problem solving and continuous improvement. By enabling flexibility in how we work and prioritising employee well-being, we empower our team to do and be their best. ## Description We're searching for a London-based Application Support Engineer to join our QCS Customer Operations team, so that we can continue delivering reliable, high-quality solutions that support health and social care providers across the UK. The Application Support Engineer will act as the Level 2 technical escalation point, resolving complex application issues, supporting platform integrations, and helping ensure the stability, performance, and continuous improvement of our products and services. How You'll Spend Your Time * Resolve complex customer issues escalated from Level 1 Support, applying technical expertise and product knowledge to deliver effective solutions within agreed service levels. * Investigate and troubleshoot application, system, and integration issues, conducting root cause analysis and collaborating with Engineering teams to implement long-term fixes. * Monitor live applications, dashboards, and system alerts to proactively identify, diagnose, and resolve issues before they impact customers. * Support and maintain integrations across platforms including Salesforce, Pendo, Vonage, GoCardless, Stripe, and other business-critical systems to ensure service continuity and data integrity. * Create and maintain support documentation, troubleshooting guides, and operational playbooks to improve knowledge sharing and reduce recurring incidents. * Support release readiness activities, knowledge transfer initiatives, and continuous improvement projects to enhance customer experience, operational efficiency, and system reliability. ## Related Videos - [Psychological Safety in Software Engineering - Jenny-Margrethe Vej & Alexandra Hou Aldershaab](https://www.wearedevelopers.com/videos/2142-psychological-safety-in-software-engineering-jenny-margrethe-vej-alexandra-hou-aldershaab) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app) ## Related Articles - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)