Team Join Citi's Equities Smart Order Router team, a core part of our Front Office Technology, driving innovation in electronic trading. This established team builds and maintains high-performance, low-latency, high-throughput applications vital for optimizing liquidity sourcing across global markets. You will provide end-to-end SDLC support, developing and enhancing critical trading components. This involves … collaboration with Product teams on requirements, Quants for algorithm implementation, and Production Support to ensure platform stability. Our team thrives on solving complex challenges at the intersection of high-performance computing and intricate trading strategies. If you're passionate about building cutting-edge financial technology with direct market impact, this role offers an exciting opportunity within a highly collaborative … will you do: End-to-End SDLC Ownership: Drive the full Software Development Life Cycle for the Equities Smart Order Router, from design to deployment, ensuring robust and high-performance solutions. Global Collaboration: Work intimately with key stakeholders and colleagues across global regions, including product teams, quantitative analysts, and other engineering groups. Critical L3 Support: Provide essential Level More ❯
queries for data persistence Ensure application scalability and reliability in cloud-hosted Linux based environment Collaborate with DevOps to containerize services and deploy using CI/CD pipelines Conduct performancetuning, code reviews, and troubleshooting production issues Document system architecture, design decisions, and development processes What we want from you Strong hands-on experience with Core Java and … multithreading in high load system Practice with JVM performance optimization and memory profiling Familiarity with distributed systems architecture and in-memory computing concepts Proven experience with in-memory caching solution Apache Ignite in production environment Solid experience with MongoDB (CRUD, indexing, performancetuning) Deep SQL knowledge and query optimization in Oracle database Solid understanding of messaging technologies … receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) A discretional annual performance related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Note: this page contains a description of More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Robert Half
and supporting the team's move toward predictive analytics and ML Ops workflows. Role The Data Engineer will own and assess the Snowflake platform, proposing and executing optimisation around performance, cost, scalability, and architecture improvements. Lead DBT development and maintenance, with emphasis on test frameworks, transformation efficiency, and eliminating redundant or resource-heavy flows (e.g., excessive temp table usage … . Design, implement, and maintain CI/CD pipelines to automate reliable deployment of data transformations. Provide deep insight into Snowflake infrastructure, including cost and pricing models, performancetuning, and resource governance. Support ML Ops/predictive analytics operationalisation - managing updates, performance monitoring, and change rollout rather than building models from scratch. Be a technical mentor and … environments. Advanced experience with DBT, including testing, modular modelling, and optimisation. Track record in building or maintaining CI/CD pipelines for data workflows. Strong familiarity with Snowflake infrastructure, performancetuning, and cost modelling. Excellent communication skills and ability to mentor or teach other engineers. Desirable/Nice to Have Exposure to ML Ops (particularly around operationalising models More ❯
business analysts Understanding of Design & Configuration Experience in Dynamics 365 In-depth knowledge of the Microsoft Dynamics CRM platform Experience in doing fitment analysis of customer requirements Knowledge in Performancetuning possibilities in Dynamics 365 implementations Experience in collaborating with business stakeholders for data integration and data migration activities which can guide a team of developers Experience in … stories. Write clear, testable user stories using Gherkin acceptance criteria. Managing agile delivery teams and team of business analyst. Design & configuration in Dynamics 365. Fitment analysis of customer requirements. Performancetuning possibilities in Dynamics 365 implementations. Collaborating with business stakeholders for data integration and data migration activities which can guide a team of developers. Managing Dynamics 365 projects More ❯
London, England, United Kingdom Hybrid / WFH Options
CDW UK
challenges. As a Senior Software Engineer Manager, you’ll take on a high-profile, high-impact role for internal stakeholders and customers. Your experience in building and managing high-performance teams will help accelerate our growing business further. You will collaborate with other teams to develop new offerings, plan go-to-market strategies and lead your team of Software … align with business needs and industry best practices. Ensure scalability, security, and compliance by applying best practices in enterprise architecture, data governance, and role-based access controls. Optimize system performance by continuously monitoring and refining workflows, reducing redundancies and improving automation Collaborate with business units and IT stakeholders to assess current processes, identify gaps, and implement solutions that drive … making within these platforms. Lead end-to-end digital transformation initiatives, modernizing legacy systems and migrating critical business applications to cloud platforms. Ensure seamless data migration, system integrations, and performancetuning for high availability environments. Ensure we build solutions that leverage our cross-practice expertise and drive client value and CDW differentiation What we expect of you Minimum More ❯
london, south east england, united kingdom Hybrid / WFH Options
CDW UK
challenges. As a Senior Software Engineer Manager, you’ll take on a high-profile, high-impact role for internal stakeholders and customers. Your experience in building and managing high-performance teams will help accelerate our growing business further. You will collaborate with other teams to develop new offerings, plan go-to-market strategies and lead your team of Software … align with business needs and industry best practices. Ensure scalability, security, and compliance by applying best practices in enterprise architecture, data governance, and role-based access controls. Optimize system performance by continuously monitoring and refining workflows, reducing redundancies and improving automation Collaborate with business units and IT stakeholders to assess current processes, identify gaps, and implement solutions that drive … making within these platforms. Lead end-to-end digital transformation initiatives, modernizing legacy systems and migrating critical business applications to cloud platforms. Ensure seamless data migration, system integrations, and performancetuning for high availability environments. Ensure we build solutions that leverage our cross-practice expertise and drive client value and CDW differentiation What we expect of you Minimum More ❯
platform is an essential platform in the life of millions of University students across the globe. In this role, you will apply your Software Engineering experience to enhance system performance and reliability, as well as building internal systems and capabilities that eliminate manual work through automation. You'll be joining our Platforms teams with globally-dispersed Site Reliability and … maintain monitoring/alerting/logging systems to identify and respond to incidents Ensure scalability and efficiency of cloud infrastructure and systems to handle traffic and data growth Conduct performance tests to identify and remediate bottlenecks Develop and maintain platform solutions, automate infrastructure provisioning, configuration, and management tasks using Infrastructure as Code. Monitor, review and tune databases to ensure … high availability and performance Collaborate with product engineering teams to design/build fit-for-purpose and observable software Required Skills and Experience: Proven experience in a SRE/DevOps/Platform Engineering role and having previously worked with.Net, Azure and C# technologies. Proficiency in C# language – alongside knowledge of scripting languages like Bash, Python or PowerShell Production experience More ❯
london, south east england, united kingdom Hybrid / WFH Options
Sanderson Government & Defence
innovative solutions using automation and modern software practices Ensure applications meet security and compliance requirements Provide input on emerging technologies and drive best practice adoption Support testing, monitoring, and performancetuning to maintain high-availability services Essential Skills & Experience Strong software development background, ideally with cloud application delivery Proficiency in programming languages such as Python, React, or Go More ❯
london, south east england, united kingdom Hybrid / WFH Options
Mondrian Alpha
ve transitioned from development into a hands-on support and automation role. The group oversees the market data systems that power real-time decision-making across asset classes — ensuring performance, stability, and reliability in one of the most demanding trading environments in the world. This is not a traditional support role. You’ll be deep in the code, scripting … developers to trace issues into the codebase and identify sustainable long-term solutions. Manage data flows, troubleshoot production pipelines, and maintain service availability across regions. Contribute to system enhancements, performancetuning, and process optimization for a wide range of asset classes. Ideal Profile Hands-on experience in market data production support (L1–L3) within a trading or financial More ❯
City of London, London, United Kingdom Hybrid / WFH Options
The Curve Group
ll be responsible for: Investigating and resolving technical incidents, ensuring minimal downtime and effective root cause analysis Proactively maintaining and optimising applications, performing upgrades and configuration changes Monitoring system performance, defining service-level objectives, and addressing bottlenecks before they impact users Collaborating closely with engineering and business teams to drive operational excellence Enhancing processes, documentation, and tooling to support … looking for: Proven experience in an application support or support engineering role, within financial services ideally, or another regulated environment Strong knowledge of SRE principles, incident management, monitoring, and performancetuning Hands-on technical skills across a broad range of technologies, including: Microsoft: C#, VB, .NET Core, Azure, SQL Server, IIS, Windows Server Web: React, RESTful APIs, Docker More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
The Curve Group
ll be responsible for: Investigating and resolving technical incidents, ensuring minimal downtime and effective root cause analysis Proactively maintaining and optimising applications, performing upgrades and configuration changes Monitoring system performance, defining service-level objectives, and addressing bottlenecks before they impact users Collaborating closely with engineering and business teams to drive operational excellence Enhancing processes, documentation, and tooling to support … looking for: Proven experience in an application support or support engineering role, within financial services ideally, or another regulated environment Strong knowledge of SRE principles, incident management, monitoring, and performancetuning Hands-on technical skills across a broad range of technologies, including: Microsoft: C#, VB, .NET Core, Azure, SQL Server, IIS, Windows Server Web: React, RESTful APIs, Docker More ❯
Senior Azure/.NET Infrastructure Engineer Drive Performance at Scale | Shape the Future of Cloud Engineering ?? Up to £100,000 + Elite Benefits Package ?? Remote-First | Work from Anywhere in the UK | Flexible Hours ?? Build the Backbone of High-Performance Platforms Are you a cloud infrastructure expert ready to take on a career-defining challenge? Do you thrive … in fast-paced environments where your decisions directly impact scalability, security, and performance? Join a cutting-edge engineering team that's powering the future of cloud-native platforms. As a Senior Azure/.NET Infrastructure Engineer , you'll be at the heart of a mission-critical transformation-designing, optimizing, and scaling infrastructure that supports millions of users and drives … Code (IaC) tools like ARM, Bicep, or Terraform. ?? Optimize .NET application stacks for speed, reliability, and scalability. ?? Implement observability and monitoring solutions to ensure system health and performance. ?? Conduct performance reviews and troubleshooting across production environments. ?? Drive automation, growth planning, and continuous improvement across the platform. ?? What You Bring to the Table ? 5+ years of hands-on experience with More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Computer Futures
Senior Azure/.NET Infrastructure Engineer Drive Performance at Scale | Shape the Future of Cloud Engineering Up to £100,000 + Elite Benefits Package Remote-First | Work from Anywhere in the UK | Flexible Hours Build the Backbone of High-Performance Platforms Are you a cloud infrastructure expert ready to take on a career-defining challenge? Do you thrive … in fast-paced environments where your decisions directly impact scalability, security, and performance? Join a cutting-edge engineering team that's powering the future of cloud-native platforms. As a Senior Azure/.NET Infrastructure Engineer , you'll be at the heart of a mission-critical transformation-designing, optimizing, and scaling infrastructure that supports millions of users and drives … Code (IaC) tools like ARM, Bicep, or Terraform. Optimize .NET application stacks for speed, reliability, and scalability. Implement observability and monitoring solutions to ensure system health and performance. Conduct performance reviews and troubleshooting across production environments. Drive automation, growth planning, and continuous improvement across the platform. What You Bring to the Table 5+ years of hands-on experience with More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Robert Half
Manager-level Cloud Data Architect with deep expertise in AWS cloud services , Snowflake , and AWS-native data platforms to lead the design and implementation of scalable, secure, and high-performance data solutions. You will play a pivotal role in shaping our cloud data strategy, driving innovation, and mentoring teams to deliver enterprise-grade data architectures that enable advanced analytics … cloud-native environment. Proven expertise with AWS cloud services , including but not limited to: S3, Glue, Redshift, Lambda, Kinesis, Athena, Lake Formation. Strong hands-on experience with Snowflake - architecture, performancetuning, security, and data sharing features. Proficient in data modelling, data integration (ETL/ELT), and metadata management. Deep understanding of data governance, data security, and compliance in More ❯
Tableau, Amazon QuickSight , or similar platforms Understanding of REST APIs , Power BI Embedded , and programmatic data access patterns Data Engineering & Modelling Strong T-SQL skills for data retrieval and performancetuning Knowledge of dimensional modelling , star/snowflake schemas , and data warehouse best practices Preferred Qualifications Microsoft certifications such as DA-100 , DP-500 , or MCSE: BI Familiarity … standards MAIN DUTIES INCLUDE: BI Development & Reporting Design, develop, and maintain SSAS cubes (tabular and multidimensional) aligned to reporting requirements Build SSRS data models and reports , ensuring scalability and performance Develop interactive Power BI dashboards using complex business logic in DAX Integration & Interoperability Enable interoperability with third-party tools like Tableau and Amazon QuickSight Manage secure integrations between Power … BI and Azure-hosted data sources Platform Support & Governance Configure row-level security , user access roles, and workspace settings Monitor performance across data models and reports; implement best practices for query optimisation Contribute to the creation of documentation, data standards, and governance artefacts Collaboration & Continuous Improvement Work closely with data engineers and analysts to define and evolve reporting architecture More ❯
workflows. Experiment with new tools, technologies and approaches to support the organisation’s analytics and insights strategy. Provide ongoing support for data products, including incident management and defining key performance metrics. Collaborate on new data initiatives from the earliest stages, working across multiple technical teams to bring ideas to life. Contribute to proof-of-concept evaluations of emerging technologies … AWS QuickSight. Experience with open-source data stack tools like Airflow, DBT, Airbyte or similar. Strong grasp of software development best practices and CI/CD processes. Skilled in performancetuning, testing, and automation within data engineering environments. Excellent communication skills, with the ability to influence and collaborate effectively with stakeholders across teams. Why Join You’ll be More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Montash
workflows. Experiment with new tools, technologies and approaches to support the organisation’s analytics and insights strategy. Provide ongoing support for data products, including incident management and defining key performance metrics. Collaborate on new data initiatives from the earliest stages, working across multiple technical teams to bring ideas to life. Contribute to proof-of-concept evaluations of emerging technologies … AWS QuickSight. Experience with open-source data stack tools like Airflow, DBT, Airbyte or similar. Strong grasp of software development best practices and CI/CD processes. Skilled in performancetuning, testing, and automation within data engineering environments. Excellent communication skills, with the ability to influence and collaborate effectively with stakeholders across teams. Why Join You’ll be More ❯
london, south east england, united kingdom Hybrid / WFH Options
Montash
workflows. Experiment with new tools, technologies and approaches to support the organisation’s analytics and insights strategy. Provide ongoing support for data products, including incident management and defining key performance metrics. Collaborate on new data initiatives from the earliest stages, working across multiple technical teams to bring ideas to life. Contribute to proof-of-concept evaluations of emerging technologies … AWS QuickSight. Experience with open-source data stack tools like Airflow, DBT, Airbyte or similar. Strong grasp of software development best practices and CI/CD processes. Skilled in performancetuning, testing, and automation within data engineering environments. Excellent communication skills, with the ability to influence and collaborate effectively with stakeholders across teams. Why Join You’ll be More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Montash
workflows. Experiment with new tools, technologies and approaches to support the organisation’s analytics and insights strategy. Provide ongoing support for data products, including incident management and defining key performance metrics. Collaborate on new data initiatives from the earliest stages, working across multiple technical teams to bring ideas to life. Contribute to proof-of-concept evaluations of emerging technologies … AWS QuickSight. Experience with open-source data stack tools like Airflow, DBT, Airbyte or similar. Strong grasp of software development best practices and CI/CD processes. Skilled in performancetuning, testing, and automation within data engineering environments. Excellent communication skills, with the ability to influence and collaborate effectively with stakeholders across teams. Why Join You’ll be More ❯
Southall, Middlesex, England, United Kingdom Hybrid / WFH Options
4Square Recruitment Ltd
to have Azure PaaS (App Service, Azure SQL, Storage, Key Vault). Front-end build tools (Node, npm, gulp, LESS) and UI polish with jQuery/Bootstrap. DevExpress components; performancetuning (EF/SQL); experience supporting live systems. What’s on offer Impactful work on cloud products used at scale. Modern tooling, clean delivery pipelines, and supportive engineering More ❯
