151 to 175 of 199 Performance Tuning Jobs in London

re looking for a place to stretch your skills and make a real impact, this is it. What You'll Do Engineer the Backbone : Design, build, and evolve high-performance Java applications that power critical backend services and interact with petabyte-scale PostgreSQL databases. Innovate with Intent : Develop robust libraries and applications using a combination of proprietary frameworks, Spring … Boot, and Micronaut-helping to standardize engineering excellence across teams. Champion Performance & Security : Tune systems for scalability and resilience, ensuring that every line of code contributes to secure, reliable, and responsive services in alignment with Mimecast's cybersecurity standards. Drive Ecosystem Integration : Evaluate and implement tools that complement the Java/PostgreSQL stack, enabling observability, automation, and operational efficiency … Bring Technical Excellence : At least 3 years experience with Java and modern frameworks like Spring Boot or Micronaut Data Fluency : Strong understanding of PostgreSQL, including database design, optimization, and performance tuning at scale. Architectural Awareness : Familiarity with RESTful APIs, microservices, CI/CD pipelines, and distributed systems-plus an appreciation for designing systems that last. Security Mindset : Awareness More ❯

Coordinate functional and technical discovery sessions with clients. Create detailed technical documentation, flow diagrams, and integration specs. Oversee system testing, deployment, and post-go-live issue resolution. Drive system performance tuning, error troubleshooting, and scalability improvements. Mentor functional and technical consultants across projects. Required Qualifications : 8-10 years ERP implementation experience, with 5+ years in NetSuite. Expert-level … like Salesforce, SAP, QuickBooks, or other ERP/CRM platforms. Ability to work across multiple projects and fast-paced environments. Advanced Excel and data analysis capabilities. Knowledge of NetSuite performance optimization and API use. What We Offer Competitive salary and benefits Dollar Pegging Internet and Gym Reimbursements. Company Sponsored Subsidized Lunch Paid holidays and vacations Medical outpatient reimbursement and More ❯

a permanent basis. Please note, the role is Hybrid, with 2 days required on-site each week. You will play a key role in network troubleshooting, security enhancements, and performance tuning, while collaborating with cross-functional teams to support business continuity and IT modernization initiatives. You will be rewarded with an excellent salary, as well as a brilliant … intrusion prevention systems Familiarity with network automation (Python, Ansible) and monitoring tools (SolarWinds, PRTG, Wireshark) Strong problem-solving and troubleshooting skills, with the ability to analyse packet captures and performance logs Network Engineer - Hybrid Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered More ❯

a permanent basis. Please note, the role is Hybrid, with 2 days required on-site each week. You will play a key role in network troubleshooting, security enhancements, and performance tuning, while collaborating with cross-functional teams to support business continuity and IT modernization initiatives. You will be rewarded with an excellent salary, as well as a brilliant … intrusion prevention systems Familiarity with network automation (Python, Ansible) and monitoring tools (SolarWinds, PRTG, Wireshark) Strong problem-solving and troubleshooting skills, with the ability to analyse packet captures and performance logs Network Engineer – Hybrid Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered More ❯

efficient and convenient. Are you adaptable, flexible and pragmatic with a DevOps mindset? Are you able to apply good engineering processes to deliver software products of high quality and performance, even with occasionally ambiguous requirements? Our ideal candidate will be a lifelong learner who enjoys solving technical problems, is curious about new technologies, and loves sharing knowledge and experience … and emerging technologies to assist in the future roadmap of our products. As a team, we are responsible for the health of the systems we build. You should understand performance tuning and optimisation, and how to diagnose technical issues across local, pre-release and production environments running on AWS. We operate a DevOps culture and are responsible for More ❯

in a fast-paced Agile environment Key Skills: Strong DevOps background with experience in Splunk and Agile delivery Experience with Apache NiFi is a plus Comfortable with infrastructure maintenance, performance tuning, and upgrades Skilled in content analysis, data validation, and quality assurance If you're ready to take on a technically challenging role in a secure, mission-driven More ❯

vendor, global network infrastructure. Manage firewall systems and enhance network security practices. Partner with technology and investment teams to deliver scalable, secure network solutions. Conduct network capacity planning and performance tuning. Define and enforce network security standards. Troubleshoot and resolve complex network and security issues. Participate in 24/7 on-call support and out-of-hours maintenance. Ideal 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 ❯

ship new features Work with external data sources, APIs, unit-test code for robustness, including edge cases, usability, and general reliability Fixing bugs and improving application responsiveness, quality and performance Embrace new technologies and methodologies to improve development efficiency ️ Your profile At least mid-level proficient in Java Understanding of Android design principles and user interface guidelines Familiar working … with RESTful APIs, third party libraries and API, cloud message APIs and push notifications Knowledgeable with performance tuning, threading and on-device storage Understanding of code versioning tools (git) Experienced in continuous integration (CI) and delivery (CD) for fast paced shipping of high quality code Passion for building a product that connects, encourages and inspires people Interest in More ❯

open to strong experience in other languages You bring deep knowledge of programming fundamentals- data structures, algorithms, system design. You've built systems at scale and understand distributed architectures, performance tuning and observability. You lead by example: through mentoring, clear communication, and a collaborative mindset. You're tenacious and resourceful-you know how to find a way forward More ❯

ship new features Work with external data sources, APIs, unit-test code for robustness, including edge cases, usability, and general reliability Fixing bugs and improving application responsiveness, quality and performance Embrace new technologies and methodologies to improve development efficiency ️ Your profile At least mid-level proficient in Swift Understanding of iOS design principles and user interface guidelines Familiar working … with RESTful APIs, third party libraries and API, cloud message APIs and push notifications Knowledgeable with performance tuning, threading and on-device storage Understanding of code versioning tools (git) Experienced in continuous integration (CI) and delivery (CD) for fast paced shipping of high quality code Passion for building a product that connects, encourages and inspires people Interest in 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 ❯

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 ❯

and collaborating with stakeholders to translate complex business requirements into scalable and maintainable Pega applications. CLSAs possess deep expertise in Pega Platform capabilities, including case management, decisioning, integrations, and performance tuning. They are skilled in enterprise architecture, agile methodologies, and governance, and play a critical role in quality assurance, code reviews, and guiding the overall technical vision of Pega … end Pega applications Leading the overall technical vision and governance for Pega projects Performing quality assurance and code reviews Providing technical guidance on case management, decisioning, and integration Conducting performance tuning and optimization of Pega applications Facilitating agile development practices within the Pega project team Aligning Pega implementations with enterprise architecture standards More ❯

/AOSP/embedded background Solid C++ and Java - Kotlin skills Experience building for consumer hardware: phones, headsets, wearables, etc. Bonus points for: VR/AR device experience Android performance tuning, system APIs, device security Interview process is quick - one round. Start ASAP. Contract likely to extend. For more info Apply Now with your CV or LinkedIn profile. More ❯

for the following desks: Equity financing Flow sales Duties include setting up proprietary software for booking, pricing, and trading (manual and automated, market interface): Real-time settings Market access performance tuning Computation setup Additional responsibilities involve electronic execution matching, deploying new releases, reporting bugs, and requesting new features or improvements from development teams. Carbon60, Lorien & SRG - The Impellam More ❯

financing · Flow sales Duties will include the setting of proprietary softwares for booking, pricing and trading (manual and automaton, market interface) : · Real-time settings · Market data parameters · Market access performance tuning · Computation setup Duties will also include electronic executions matching, new releases deployment, bug reporting and new features or improvements requests to development teams. Carbon60, Lorien & SRG - The More ❯

expert across a diverse, modern, and complex technology landscape, ensuring seamless support and smooth operations. You'll take charge of incident triage and resolution, lead system upgrades, and keep performance optimized through proactive monitoring and alerting. Beyond day-to-day support, you'll drive continuous improvements in processes and tools, collaborating with stakeholders to elevate operational excellence and keep … Plan and execute minor upgrades and configuration changes with minimal impact to the production environment. Maintain and optimise system configurations across legacy and modern applications to ensure their continued performance and reliability. System Monitoring & Performance: Maintain and improve logging, monitoring, and alerting systems. Define service-level objectives and indicators for business applications. Continuously review performance metrics against … SLO/SLIs and proactively address performance bottlenecks or underperforming systems. Manage system health checks, review logs, and act on warnings to avoid potential disruptions. Provide regular updates to Technology leadership members and key business stakeholders. Work alongside Engineering teams to enhance system resilience, focusing on high-availability, scalability, and reliability. Support and contribute to the development of runbooks More ❯

requirements into technical specifications and BI solutions. Write, optimise, and maintain complex SQL queries for data extraction, transformation, and analysis. Develop and manage data models in OBIEE to ensure performance and scalability. Work with data warehouse teams to ensure data accuracy, availability, and consistency. Collaborate with business stakeholders to deliver actionable insights and reporting tools. Troubleshoot and resolve OBIEE … performance and data issues. Maintain documentation for reports, dashboards, and data flows. Profile The Oracle BI Consultant will have proven experience with Oracle Business Intelligence Enterprise Edition (OBIEE) - including RPD development, Answers, and Dashboards. Advanced proficiency in SQL, with a deep understanding of query optimisation and performance tuning. Strong understanding of data warehousing concepts and dimensional data modelling. More ❯

requirements into technical specifications and BI solutions. Write, optimise, and maintain complex SQL queries for data extraction, transformation, and analysis. Develop and manage data models in OBIEE to ensure performance and scalability. Work with data warehouse teams to ensure data accuracy, availability, and consistency. Collaborate with business stakeholders to deliver actionable insights and reporting tools. Troubleshoot and resolve OBIEE … performance and data issues. Maintain documentation for reports, dashboards, and data flows. Profile The Oracle BI Consultant will have proven experience with Oracle Business Intelligence Enterprise Edition (OBIEE) - including RPD development, Answers, and Dashboards. Advanced proficiency in SQL, with a deep understanding of query optimisation and performance tuning. Strong understanding of data warehousing concepts and dimensional data modelling. More ❯

of coding in a front-end capacity (preferably JavaScript and React). Container-related tools - e.g., Docker, Docker Compose. Databases - e.g., SQL, PostgreSQL. RESTful API development and management. Proactive Performance Tuning. Solid understanding of design patterns and relevant implementation models. Solid understanding of DevOps tooling, GitLab, CI/CD, Jenkins, build pipelines and source control systems. Working knowledge of … makes life better for millions wasn't rewarding enough, we offer a full range of benefits too. Key benefits that may be available depending on the role include: Annual performance based bonus, up to 10% 25 days annual leave, plus eight bank holidays Up to 8% pension contribution Financial support and time off for study relevant to your role More ❯

approach in conjunction with open-source tools to ensure a scalable and reliable environment in which to operate. Within MSIE, the Systems Internals team is responsible for kernel-space performance and configuration standards, developing tooling for networking stack functionality, and providing engineering leadership for how best to optimize the interaction between applications and OS interfaces. The team is composed … in eBPF and/or the Linux kernel and acts as a bridge between application development teams and the lower-level components of the OS by assisting with application performance profiling, benchmarking and certifying production-readiness of new OS releases and patches, and advising on how best to consume system resources. What's in it for you: You'll … critical systems hosting a wide array of applications for the Bloomberg Terminal product. You will regularly collaborate with other OS and service-owning teams to maintain the stability and performance of operating systems and servers. We'll depend on you to advise on the design, architecture, and utilization of enterprise-class operating systems, with particular focus on Linux. You More ❯

approach in conjunction with open-source tools to ensure a scalable and reliable environment in which to operate. Within MSIE, the Systems Internals team is responsible for kernel-space performance and configuration standards, developing tooling for networking stack functionality, and providing engineering leadership for how best to optimize the interaction between applications and OS interfaces. The team is composed … in eBPF and/or the Linux kernel and acts as a bridge between application development teams and the lower-level components of the OS by assisting with application performance profiling, benchmarking and certifying production-readiness of new OS releases and patches, and advising on how best to consume system resources. What's in it for you: You'll … critical systems hosting a wide array of applications for the Bloomberg Terminal product. You will regularly collaborate with other OS and service-owning teams to maintain the stability and performance of operating systems and servers. We'll depend on you to advise on the design, architecture, and utilization of enterprise-class operating systems, with particular focus on Linux. You More ❯

approach in conjunction with open-source tools to ensure a scalable and reliable environment in which to operate. Within MSIE, the Systems Internals team is responsible for kernel-space performance and configuration standards, developing tooling for networking stack functionality, and providing engineering leadership for how best to optimize the interaction between applications and OS interfaces. The team is composed … in eBPF and/or the Linux kernel and acts as a bridge between application development teams and the lower-level components of the OS by assisting with application performance profiling, benchmarking and certifying production-readiness of new OS releases and patches, and advising on how best to consume system resources. What's in it for you: You'll … critical systems hosting a wide array of applications for the Bloomberg Terminal product. You will regularly collaborate with other OS and service-owning teams to maintain the stability and performance of operating systems and servers. We'll depend on you to advise on the design, architecture, and utilization of enterprise-class operating systems, with particular focus on Linux. You More ❯