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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Support Engineer - 12 months' Fixed Term Contract - **Company:** Rtx Technologies - **Location:** Harlow, UK - **Contract:** Temporary contract - **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), Agile Methodology, Extract Transform Load (ETL), Linux, DevOps, Digital Technology, Monitoring of Systems, Log Analysis, Performance Tuning, OneStream, System Availability, Break Fix, Deployment Automation, Enterprise Integration - **Published:** August 19, 2026 - **Apply:** https://www.totaljobs.com/job/application-support-engineer/rtx-technologies-job107865763 ## About the Role * Proven experience in application support, ideally with finance platforms, OneStream in particular. * Strong understanding of Service Management frameworks such as ITIL. * Solid background in: * Operating system management (Windows/Linux) * Application troubleshooting and performance optimisation * Log analysis, system monitoring, and incident management * Ability to collaborate effectively with technical and non-technical stakeholders. * Experience working in structured delivery environments; familiarity with Agile ways of working is advantageous. Desirable: * Experience in support of a wide range of Data and MI/BI platforms. * Experience supporting applications in regulated industries (e.g., government, aerospace and defence). * Knowledge of integration concepts (ETL, Event, APIs, message-based interfaces). * Exposure to deployment automation or DevOps practices. Personal Attributes: * Strong analytical and problem-solving mindset. * Clear communicator able to work across diverse technical teams. * Proactive, collaborative, and committed to delivering high-quality support. * Adaptable, eager to learn, and able to transition seamlessly between project and BAU contexts. ## Description We are seeking a capable and motivated Application Support Engineer to join our wider Data and BI Product Family. This role will initially focus on providing technical deployment and application support for a major financial planning transformation, working closely with programme teams and Digital Technology functions such as Architecture, Security, and Operations. The role requires strong technical troubleshooting skills, hands-on experience with financial planning platforms, and a solid foundation in operating system and application support. As the programme transitions toward go-live, the Application Support Engineer will play a key role in knowledge transfer, documentation, and training, ensuring the broader support team is fully equipped to manage the new platform in a live environment. You will initially be aligned with the programme and transition to your home team as the programme nears delivery where you will integrate with the wider team and pick up other application support task as required. Agile experience is highly advantageous, as this role sits within an engineering product family that operates using modern, iterative delivery methodologies. Responsibilities Deployment & Technical Support: * Support the initial deployment, configuration, and technical validation of the new financial platform. * Provide hands-on troubleshooting and issue resolution across application, interface and configuration layers. * Work closely with infrastructure, network, and security teams to ensure end-to-end environment readiness. Collaboration & Cross-Functional Engagement * Collaborate with key programme stakeholders including Architecture, Engineering, Programme Delivery, QA, and Finance Operations. * Participate in Agile ceremonies and contribute to iterative delivery cycles, backlog refinement, and continuous improvement. * Assist in interpreting architectural and design requirements into actionable support tasks. Operational Readiness & Transition: * Prepare the wider support organisation for steady-state operations by developing documentation, standard operating procedures, and knowledge articles. * Deliver training and knowledge-transfer sessions to ensure operational teams can confidently support the live Finance platform. * Contribute to hyper-care and early life support activities post-go-live. Monitoring, Incident Management & Continuous Improvement: * Implement and maintain monitoring solutions to ensure system availability and performance. * Manage incident triage, root cause analysis, and problem resolution for platform-related issues. * Identify opportunities to enhance stability, resilience, and operational efficiency of the platform. ## Related Videos - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [#90DaysOfDevOps - The DevOps Learning Journey](https://www.wearedevelopers.com/videos/548-90daysofdevops-the-devops-learning-journey) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)