Application Support Engineer

Application Support Engineer

London Hybrid

We are working with a fast-growing technology business looking for a Technical Application Support Engineer to support complex software deployments within live customer environments.

This is an excellent opportunity for someone who enjoys investigating technical problems, working with live systems, and supporting software that has a real-world operational impact.

This is not a traditional helpdesk or ticket-routing role. You will be responsible for the technical health of active customer deployments, proactively monitoring live systems, investigating anomalies, resolving technical issues, and helping ensure deployments continue to deliver measurable value.

The role would suit someone who enjoys working across software, data, integrations, telemetry and customer-facing technical support.

The Role

You will work closely with Customer Success, Engineering and Data teams to monitor active deployments, identify issues before they impact customers, and provide clear technical insight into system performance.

Responsibilities will include:

• Monitoring live customer deployments, including uptime, system behaviour, performance and SLA compliance
• Investigating anomalies using logs, metrics, telemetry and operational data
• Diagnosing issues across data ingestion, integrations, connectivity, software deployments and system outputs
• Acting as a technical point of contact for deployment-related issues
• Resolving issues where possible or escalating to technical teams with clear diagnostic evidence
• Producing concise technical summaries for internal teams and customers
• Supporting customer reporting, monthly reviews and service reviews
• Carrying out root cause analysis on incidents and recurring issues
• Creating and maintaining runbooks, diagnostic guides and knowledge base documentation
• Identifying opportunities to improve reliability, monitoring and support processes

Experience Required

The successful candidate will ideally have:

• 2–5 years’ experience in application support, technical support, software support, operations or engineering support
• Experience supporting software deployed into customer or operational environments
• Strong troubleshooting skills across interconnected systems
• Experience analysing logs, metrics, telemetry or time-series data
• Familiarity with SQL, JSON, Python, Excel or similar tools
• Strong written communication skills and confidence dealing with customers
• Ability to work autonomously and know when to escalate issues
• Familiarity with tools such as Jira, Confluence and Microsoft Teams

Useful Background

Any exposure to the following would be beneficial:

• Application support or software support within complex customer environments
• Implementation support, deployment support or technical operations
• Monitoring, observability, telemetry or infrastructure tooling
• Linux, Docker, cloud infrastructure or scripting
• IoT, operational systems, data platforms or analytics-led software