18 of 18 Permanent Performance Tuning Jobs in the City of London

department. MAIN RESPONSIBILITIES Database estate administration and monitoring Managing application system Disaster Recovery and high availability Managing backup and recovery strategies/automation of maintenance and batch processing Database performance tuning including TSQL/Procedural performance tuning (Optimizer and Index usage) Database design and architecture, development and administration Setting up best practice database development and acting … in a constructive manner Strong analytical skills Data Modelling Relational Database Design Database Application Development Microsoft - SQL Server/Transact SQL Server/Data Warehousing & Reporting PowerShell, DOS Database performance tuning Degree in Computer Science/Information Systems Design or equivalent Desirable: Knowledge of Fuel oil and the Bunker Industry desirable More ❯

business is actively expanding as there is additional headcount for a number trade platform specialist Java Development with a focus on either/or Quantitative Development or low-latency performance optimization. You will be working on greenfield projects to build out and enhance their low latency trading systems. THE ROLE: Working in a fast-paced trading environment as a … tune trading strategies across both spot and derivative markets. Based directly on the trading floor, you will play a crucial role in enhancing execution logic, automating workflows, and ensuring performance at scale for a high-frequency, multi-exchange setup. You will focus on optimising every component of the trading stackincluding multi-threading, network communication, order processing, and execution logicto … achieve ultra-low latency and high throughput. Robust monitoring, alerting, and performance tracking ensure system reliability. The team has deep expertise in trading protocols, messaging systems, network architectures, and concurrent computing to support a complex, high-frequency trading landscape. KEY RESPONSIBILITIES: Build and refine algorithmic trading models for use across various digital asset exchanges Improve and maintain dynamic hedging More ❯

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 ❯

Consulting Engineer (NCE) to design and implement next-generation VXLAN EVPN-based data center networks that support hypercomputing and AI infrastructure. This role is central to enabling the high-performance, low-latency environments required for multi-GPU clusters, distributed training pipelines, and scalable AI workloads. The ideal candidate will bring deep expertise in VXLAN, BGP, EVPN, RoCEv2, and fabric … a solid understanding of the networking demands of large-scale AI and HPC environments. Key Responsibilities: •Design, deploy, and manage VXLAN EVPN-based fabric networks supporting AI and high-performance computing workloads. •Build scalable spine-leaf architectures using Cisco Nexus 9000 or Arista switches, ensuring efficient Layer 2/Layer 3 segmentation and workload mobility. •Optimize network performance … virtualization platforms such as VMware NSX, KVM, and Hyper-V, as well as Kubernetes-based AI infrastructure. •Collaborate with compute, storage, and DevOps teams to ensure end-to-end performance across AI training, fine-tuning, inference, and ETL pipelines. •Drive network automation efforts using tools such as Python, Ansible, and Terraform, enabling Infrastructure-as-Code (IaC) for repeatable More ❯

and scalable ready to meet the demands of a growing user base and a regulated environment. Drive Technical Excellence: Set and maintain high standards for code quality, testing, system performance, and engineering practices. Influence Without Authority: Provide technical direction across teams, help navigate complexity, and drive alignment on architectural decisions. Mentor and Support: Partner with engineering managers to mentor … or GCP), and event-driven design. Strong programming ability in one or more languages (e.g. TypeScript, Node.js, Python, Go, Java). Experience with DevOps practices, CI/CD pipelines, performance tuning, and monitoring tools. Solid database knowledge (SQL & NoSQL) and the judgment to choose the right tool for the job. Strong communication and stakeholder engagement skills; comfortable working More ❯

automation, and enterprise-grade system performance. What You’ll Be Doing Administer and monitor enterprise systems, ensuring high availability Lead and manage a VMware virtualised environment : upgrades, provisioning, and performance tuning Automate infrastructure using tools like Ansible , PowerShell, or Bash Implement robust backup and disaster recovery strategies Enforce security measures, conduct audits, and ensure compliance Troubleshoot complex system … issues and support continuous improvement Document system configurations and generate performance reports What You’ll Bring 6+ years in systems administration or infrastructure engineering Expert-level VMware experience (upgrade, provisioning, tuning) Strong skills in Ansible and other automation/scripting tools Solid Linux/Windows OS knowledge Experience with Red Hat Satellite and patching infrastructure Excellent problem-solving More ❯

of it. Key Responsibilities: Design and deliver Power BI dashboards for external clients Build scalable data models using DAX and SQL Run stakeholder workshops to define dashboard requirements Optimise performance using DAX Studio and best-practice modelling Support broader data integration and delivery with cross-functional teams What You’ll Bring Extensive BI development experience in a client-facing … of DAX (CALCULATE, SUMX, VAR, FILTER, REMOVEFILTERS, time intelligence) Proficiency in SQL and solid understanding of tabular/star schema models Experience working with cloud platforms, ETL tools, and performance tuning Confident leading sessions with both technical and non-technical stakeholders Why Apply his is a key role within a growing analytics function, offering the chance to fully More ❯

Experience Proven track record delivering Microsoft Fabric migration projects (multiple projects essential) Strong Azure Data Factory (ADF) experience Advanced Power BI development and optimisation skills Azure SQL expertise, including performance tuning and data modelling Ability to work closely with senior stakeholders Relevant Microsoft Azure certifications , such as: Azure Data Engineer Associate (DP-203) Azure Solutions Architect Expert Azure More ❯

a strong culture rooted in integrity, creativity, and technical excellence, they've become a trusted partner across global industries. In this role you'll take ownership of the reliability, performance, and deployment of React-based user interfaces used by clients around the world. You'll work very closely with SRE, DevOps, and Product Teams, and drive front-end observability … The ideal candidate will be someone who combines deep React expertise with infrastructure awareness. Candidates must be comfortable working with Kubernetes, AWS, CI/CD tooling, and browser-level performance monitoring. This is a fantastic opportunity to play a leading role in building robust, scalable, and reliable front-end systems in a company that invests in both people and … technology. The Role: *Owning React application reliability, observability, and performance in production environments *Designing and managing CI/CD Pipelines for automation testing, canary deployments, and rollbacks *Optimising front-end delivery via CDN configuration, caching strategies, and real user monitoring (Datadog/Sentry) *Collaborate with platform and SRE teams to ensure seamless delivery of React applications on Kubernetes and More ❯

with planning, management and resource allocation of inter-departmental projects alongside the company’s PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of company procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and … 7+ years Linux system administration experience with at least 3 years in a managerial or team lead role. Strong expertise with RHEL-based systems, including installation, ongoing management, monitoring, performance tuning, system security hardening, etc. Proven track record of managing geographically distributed teams, including senior engineers and tier-1/2 support staff including on-call and rota More ❯

Act as SME for server virtualisation, storage integrations, HA/DR, and migration planning Work closely with clients to define technical requirements and provide architectural guidance Conduct health checks, performance tuning, and capacity planning of virtual environments Migrate legacy systems to modern virtual infrastructure (vSphere/Hyper-V to Azure, etc.) Document and support all solutions including HLDs More ❯

openness, and excellence. My client work in a collaborative style and take collective responsibility for successes and our failures. We value: High personal integrity Innovative thinking Efficient and reliable performance Spark You will join a supportive team, where we aim to recruit the best people from all walks of life and diverse business backgrounds. If these sentiments align with … the day-to-day operations of the Linux infrastructure team, including both senior-level system administrators and the Linux support desk staff. This role ensures the stability, security, and performance of mission-critical Linux-based systems including multiple exchanges as well as providing strategic direction, operational excellence, effective team leadership and close collaboration with other departments Responsibilities and Duties … initiatives. Assist with planning, management and resource allocation of inter-departmental projects alongside the PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and penetration More ❯

openness, and excellence. My client work in a collaborative style and take collective responsibility for successes and our failures. We value: High personal integrity Innovative thinking Efficient and reliable performance Spark You will join a supportive team, where we aim to recruit the best people from all walks of life and diverse business backgrounds. If these sentiments align with … the day-to-day operations of the Linux infrastructure team, including both senior-level system administrators and the Linux support desk staff. This role ensures the stability, security, and performance of mission-critical Linux-based systems including multiple exchanges as well as providing strategic direction, operational excellence, effective team leadership and close collaboration with other departments Responsibilities and Duties … initiatives. Assist with planning, management and resource allocation of inter-departmental projects alongside the PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and penetration More ❯

issues 3. Collaborate with stakeholders to gather requirements and define project scope 4. Ensure adherence to best practices in coding, testing, and deployment processes 5. Conduct code reviews and performance optimization activities 6. Troubleshoot and debug technical issues to ensure seamless project delivery 7. Stay updated with the latest trends and advancements in apache spark, scala, and python technologies … software development life cycle 5. Good communication and interpersonal skills 6. Ability to work effectively in a collaborative team environment 7. Strong organizational and leadership abilities 8. Experience in performance tuning and optimization techniques 9. Knowledge of big data concepts and tools is a plus Other Details: Work Mode: Hybrid Location: LONDON Nature of Employment: 6 months Contractual More ❯

automate business processes. Integrate Power Apps with various data sources using standard and premium connectors and develop custom connectors if necessary Implement security measures for Power platform solutions Perform performance tuning and optimization of Power Platform solutions Participate in the deployment of Power Platform solutions to higher environments (QA, UAT, Production) Implement and enhance robust ALM process for More ❯

clients and sectors. You’ll work closely with technical squads, internal teams, and partners to build and scale a modern data capability —with a clear mandate to influence architecture, performance, security, and cost optimisation across the board. This is not a pure delivery or line management role — it’s for someone who wants to build IP , define methodology, coach … Define and lead Snowflake best practice across clients and internal teams ✅ Build repeatable assets, patterns, and frameworks (with an eye on reusability + commercial value) ✅ Guide squads on architecture, performance tuning, security, cost management ✅ Be the go-to Snowflake SME for our internal teams, partners, and clients ✅ Shape our internal Snowflake playbook and CoE vision You should have More ❯

standardization Build and manage CI/CD pipelines with Jenkins, GitHub Actions, or AWS Code Pipeline Perform administrative and troubleshooting tasks on Linux-based systems, including log analysis and performance tuning. Lead technical triage and root cause analysis for infrastructure-related issues Develop and deploy applications using Docker and AWS FARGATE Use CloudWatch, CloudTrail, and third-party tools like … Datadog for performance and cost efficiency Configure AWS networking (VPCs, TGWs), enforce governance via AWS Config and tagging policies Maintain architecture diagrams, SOPs, and collaborate across engineering and product teams Should this role speak to you, kindly send a copy of your latest CV to naushad.c@rpint.com More ❯

In this role you'll take ownership of platform reliability, resilience engineering, and incident management across cutting-edge cloud infrastructure. You'll play a key role in ensuring uptime, performance, and continuous improvement of core systems. The ideal candidate will be an experienced Site Reliability Engineer with a deep background in AWS, Kubernetes (EKS), Terraform, and monitoring/eventing … tools. You'll have a strong grasp of application-level troubleshooting, chaos engineering, and performance tuning. This is a fantastic opportunity to work in a modern DevOps environment where innovation is encouraged, personal development is supported, and technical impact is real. The Role: *Manage and optimise AWS and Kubernetes (EKS) infrastructure *Implement resilience strategies and conduct chaos engineering experiments … Monitor and maintain Kafka clusters for performance and reliability *Respond to and resolve application-level production incidents The Person: *5+ years in SRE, DevOps, or infrastructure engineering *Strong experience with AWS, EKS/Kubernetes, and Terraform *Familiar with Kafka and observability tools like Datadog or Grafana *Able to troubleshoot issues across infrastructure and application layers Reference number: BBBH(phone More ❯