19 of 19 Contract Performance Tuning Jobs in London

in migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong understanding of PL/SQL and experience translating stored procedures into application logic. Familiarity with PostgreSQL, including performance tuning and SQL dialect differences. Experience working in hybrid environments where legacy and modern systems coexist. Comfortable using AI tools (e.g., GitHub Copilot, ChatGPT, code translators) to assist More ❯

strategic data and service transformation projects within the sector which need to provide in-depth triangulated intelligence to inform decision making, business planning, and the measurement of improvement in performance and quality Foster a culture of customer service by working closely with the decision-support function, responding effectively to the needs of the organisation and pro-actively seeking to … add value to the organisation through information analyses, tools and methods Foster close working relations with the Data, Digital, Performance, ICT and Finance departments in developing and maintaining quality information and information reporting systems Review and contribute to the development of Information Management and Data Quality policies and procedures to meet the needs of the Trust Support and mentor … environment Experience of using SQL programming and understanding of data engineering concepts, data pipelines, ETL/ELT processes, and data warehousing Desirable Understanding of data modeling, dimensional modeling, and performance tuning. Skills and knowledge Essential Proficiency in PRINCE2 for project management and Excel plus other tools (e.g. Visio) Familiarity with data structures, algorithms, cloud infrastructure and good software development More ❯

mindset is highly desirable Desirable Attributes Experience with event-driven architectures and messaging systems (e.g., Kafka) Exposure to Infrastructure as Code (e.g., Terraform, Ansible) Familiarity with observability tools and performance tuning Ability to mentor junior engineers and lead backend design initiatives Engagement Model Outside IR35 12-month initial contract with potential for extension or permanent employment Hybrid working More ❯

collaborate across multidisciplinary teams Desirable Attributes Exposure to event-driven architectures and messaging systems (e.g., Kafka) Experience with Infrastructure as Code (e.g., Terraform, Ansible) Familiarity with observability tools and performance tuning Ability to mentor junior engineers and contribute to backend design leadership Prior consulting experience or experience in client-facing roles Engagement Model Outside IR35 12-month initial More ❯

Engineering, Mathematics, or a related field. 1-3 years of experience in a data engineering, data analytics, or software engineering role. Proficient in SQL for querying, data manipulation, and performance tuning. Hands-on experience with Azure Data Services (such as Azure Data Factory, Azure Synapse, Data Lake, or Logic Apps). Strong problem-solving skills and attention to detail. More ❯

PostgreSQL or similar. Strong working knowledge of Oracle PL/SQL and the ability to translate procedural logic into C#. Solid experience with PostgreSQL, including handling dialect differences and performance tuning. Comfortable working in hybrid environments where legacy and modern platforms coexist. Familiarity with AI-enabled tools that accelerate development and migration tasks. Strong grasp of software architecture principles More ❯

Responsibilities: Develop and maintain front-to-back pricing and risk solutions using Java 21 Collaborate with Front Office, Quants, Risk, and DevOps teams Prioritise non-functional requirements such as performance, reliability, and maintainability Improve development tooling, deployment pipelines, and overall engineering processes Provide level 3 support and contribute to operational excellence Essential Skills: Strong core Java development (streams, lambdas … concurrency APIs) Deep understanding of distributed systems and multithreaded architectures Proficiency in TDD, agile delivery, and CI/CD for complex enterprise systems Experience with performance tuning and monitoring tools (JVisualVM, Prometheus, Elastic Stack) Solid Computer Science foundation (algorithms, data structures, concurrency) Proven track record delivering applications from design to production Desirable Experience: Background in investment banking, particularly More ❯

deploying models Collaborate with data scientists, product teams, and software engineers to integrate ML into production Optimize models for speed, accuracy, and efficiency in real-time environments Monitor model performance and implement feedback loops and retraining mechanisms Conduct experiments using A/B testing and statistical analysis to validate approaches Document ML systems and provide support for ongoing performance tuning Use tools like Python, TensorFlow, PyTorch, Scikit-learn, AWS, GCP, MLflow, Docker, SQL , and others Requirements Minimum Bachelors degree in Computer Science, Machine Learning, AI, or a related field Proven experience as a Machine Learning Engineer or in a similar role (minimum 1 year ) Strong proficiency in Python and popular ML frameworks (e.g., TensorFlow, PyTorch) Experience deploying More ❯

We are seeking a Senior GUI Developer to hit the ground running who will lead the design and development of a high-performance, real-time Limit Order Application within our global eFX trading platform. This application will serve as a critical interface for traders and risk managers, enabling precise control and monitoring of limit order strategies across global markets. … the Limit Order Application.Collaborate with traders, quants, and backend developers to build interfaces that support real-time order entry, modification, and price tracking.Ensure the application meets high standards for performance, reliability, and usability under real-time trading conditions.Drive the evolution of our GUI architecture and component libraries.Mentor junior developers and contribute to a culture of engineering excellence.Maintain a strong … financial services or trading environments.Expertise in GUI frameworks such as Java or modern web technologies (e.g., React, Electron).Strong programming skills in JavaExperience with real-time data visualization and performance tuning.Prior experience leading development teams and coordinating global releases.Bachelor's degree in Computer Science, Engineering, or related field.Familiarity with automated trading systems and market connectivity is a strong plus.Location More ❯

as a DAT Developer Proven experience developing, implementing, and optimising database objects to meet client and system requirements. Strong understanding of Microsoft SQL Server development, including stored procedures and performance tuning. Familiarity with ETL processes and data modelling techniques in a multi-tenant, cloud-based environment. Experience gathering user requirements and translating them into technical solutions. Ability to investigate More ❯

Location : Fully Remote (UK-based only) Start Date : Immediate Company : Fast-growing MSP focused on Microsoft technologies Requirements: Proven experience managing and optimising Azure SQL databases Strong knowledge of performance tuning, backups, disaster recovery, and security best practices Ability to work independently and communicate effectively with remote teams Must be based in the UK Must have unrestricted right … to work in the UK indefinitely (no visa sponsorship available) Responsibilities: Administer and maintain Azure SQL environments Monitor performance and implement improvements Ensure database security and compliance Collaborate with development and infrastructure teams Provide support and troubleshooting as needed To apply for this role please submit your CV or contact David Airey on (phone number removed) or at (url More ❯

establish best products Follow outlined standards of quality related to code and systems Work closely with front-end developers in building and extending APIs Develop automated tests and conduct performance tuning Skills Experience with JavaScript & Oracle Simphony Experience building & integrating APIs Excellent knowledge of SQL Familiar with AWS or similar Excellent communication skills Knowledge of practices and procedures More ❯

for global FX limit order trading. Work closely with traders, quantitative analysts, and backend engineers to build robust, real-time interfaces for order entry, modification, and monitoring. Ensure high performance, reliability, and usability under live trading conditions. Evolve and maintain GUI architecture and component libraries to support scalability and responsiveness. Mentor junior developers and foster a high-performance … systems. Expertise in Java (Swing/JavaFX) and/or modern web frameworks (React, Electron). Strong Java programming skills with a focus on real-time data visualization and performance tuning. Solid understanding of FX trading and limit order workflows. Proven experience leading development teams and managing global code releases. Excellent collaboration and communication skills across geographically distributed teams. … unique opportunity to shape a mission-critical system used by global trading desks. You'll be a key contributor to a highly visible project with direct impact on trading performance and client outcomes. Apply now and take your GUI development career to the next level. Randstad Technologies is acting as an Employment Business in relation to this vacancy. More ❯

5+ in eTrading. Strong skills in Java , multi-threading, and low-latency development. Good understanding of fixed income or FX trading . Experience with Linux , TCP/UDP , and performance tuning. Familiar with test-driven development and system design. Comfortable working in a fast-paced, agile environment. If you're passionate about building high-performance systems and want More ❯

processing, and publication. * Data Governance & Security: Familiarity with managing data governance and security using Databricks Unity Catalog, ensuring data is appropriately organized, secured, and accessible to authorized users. * Optimization & Performance Tuning: Proven experience in optimizing data pipelines for performance, cost-efficiency, and scalability, including partitioning, caching, and tuning Spark jobs. * Cloud Architecture & Automation: Strong understanding of More ❯

processing, and publication. * Data Governance & Security: Familiarity with managing data governance and security using Databricks Unity Catalog, ensuring data is appropriately organized, secured, and accessible to authorized users. * Optimization & Performance Tuning: Proven experience in optimizing data pipelines for performance, cost-efficiency, and scalability, including partitioning, caching, and tuning Spark jobs. * Cloud Architecture & Automation: Strong understanding of More ❯

5+ in eTrading. Strong skills in Java , multi-threading, and low-latency development. Good understanding of fixed income or FX trading . Experience with Linux , TCP/UDP , and performance tuning. Familiar with test-driven development and system design. Comfortable working in a fast-paced, agile environment. If you're passionate about building high-performance systems and want More ❯

of how to utilise Alfresco APIs for application integration and extension (ERP, CRM) Proficient in Alfresco APIs (REST, CMIS). Deep understanding of Solr for content indexing and search performance Nice to have: An understanding of Records Management in Alfresco Experience in Performance tuning, storage optimisation and scaling of Alfresco instances Immediate availability Hays Specialist Recruitment Limited More ❯

of how to utilise Alfresco APIs for application integration and extension (ERP, CRM) Proficient in Alfresco APIs (REST, CMIS). Deep understanding of Solr for content indexing and search performance Nice to have: An understanding of Records Management in Alfresco Experience in Performance tuning, storage optimisation and scaling of Alfresco instances Immediate availability Hays Specialist Recruitment Limited More ❯