Job DescriptionJob Title:

Application Support Engineer - Trading PlatformsLocation:

Central London - 3 days per week in the officeSalary/Rate:

Up to £475 per day INSIDE IR35Start Date:

26/05/2025Job Type:

ContractCompany IntroductionWe have an exciting opportunity now available with one of our sector-leading financial services clients! They are currently looking for a skilled Application Support Engineer to join their team for a six-month contract.Job

Responsibilities/ObjectivesIntegrate data science models and algorithms into existing applications to enhance decision-making processes and provide data-driven insights. Collaborate with data scientists to deploy, monitor, and maintain machine-learning models in production environments. Develop data pipelines and extract, transform and load (ETL) processes to support data integration and analysis. Experience with data science integration, machine-learning models, and data-processing frameworks is essential.

Collaborate with cross-functional teams to design, implement, and maintain CI/CD pipelines for continuous application deployment and integration. Monitor, troubleshoot, and optimize application performance, ensuring high availability and reliability. Implement automation strategies to streamline deployment, configuration management, and infrastructure scaling. Align with development teams to assist in ensuring applications are designed with operational excellence in mind. Strong proficiency in DevOps practices, tools (eg, Jenkins, Docker, Kubernetes), and infrastructure as code.

Administer, configure, and maintain Solace messaging infrastructure to ensure Real Time and reliable communication between applications. Manage ITRS monitoring tools, configure alerts, and develop custom monitoring solutions to ensure timely identification and resolution of issues. Implement upgrades and patches to keep the Solace and ITRS platforms up to date.

Act as a subject matter expert in diagnosing and resolving complex technical issues related to applications.

Maintain detailed documentation of systems, configurations, procedures, and troubleshooting steps. Share knowledge and best practices with team members to foster a collaborative learning environment.

Automation/Scripting

(Python, Shell, SQL ) and development skills for administration, monitoring and support tools.

Required Skills/ExperienceThe ideal candidate will have the following:Expert-level knowledge of the Elastic Stack (Elasticsearch, Logstash, Kibana, Beats), with proven experience in architecting, deploying, and managing ELK infrastructure across distributed, high-performance environments.

Strong understanding of index life cycle management (ILM), shard optimization, and cluster health monitoring to support low latency applications.

Practical and working knowledge of IP Networking and data flow within distributed systems.

Experience integrating ELK with packet capture/analysis tools to enhance observability of Real Time systems.

Hands-on expertise in data pipeline creation, ingestion strategies, and performance tuning of Logstash and Beats for scalable telemetry.

Knowledge of Corvil and/or Pico tools is highly beneficial but not essential, particularly for ingesting network telemetry into Elasticsearch.

Scripting proficiency in Python and/or PowerShell to automate ELK deployment, monitoring, and alerting pipelines.

Experience designing and working with APIs (REST/JSON/XML) and integrating third-party data sources into the ELK stack.

Exposure to Solace, 29West, Tibco, or other low latency messaging platforms is advantageous for understanding event-driven architectures in financial systems.

Familiarity with trading infrastructures and protocols (FIX, Market Data, Order Entry, etc.), with a deep understanding of the demands of high-frequency and algorithmic trading environments.

Working knowledge of security best practices, including RBAC, TLS, and audit logging in Elasticsearch.

Experience with observability platforms such as ITRS Geneos and their integration with ELK is a strong plus.

Comfortable with multi-site replication, cross-cluster search, and disaster recovery configurations for global deployment.

Strong understanding of Linux systems, containers, and cloud- observability stacks.

Organized, self-driven, and able to manage priorities in a dynamic, high-performance trading environment.

If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.DisclaimerNotwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces and will treat everyone equally. Please see our website for our full statement.

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