51 to 75 of 117 Performance Tuning Jobs in London

Rust Developer

Hiring Organisation
Jonothan Bosworth
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £75,000 per annum
make a real impact. You’ll play a key role in architecting, building, and optimising telecommunications systems in Rust , contributing to secure, high-performance, and scalable solutions used worldwide. What you’ll be doing As a Senior Rust Developer , you will: Architect, develop, and maintain high-performance network … applications in Rust Collaborate with product managers, network engineers, and developers to create new telecom solutions Optimise existing systems for performance, reliability, and scalability Ensure compliance with telecom standards and best practices Research and integrate new protocols, libraries, and frameworks Mentor junior developers, conduct code reviews , and drive best ...

AI Technical Architect

Hiring Organisation
Akkodis
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £95000/annum
organisations with a strong focus on architecture and enterprise solutions 5+ years as a Technical Architect with hands-on experience in: MongoDB - schema design & performance tuning Redis - caching & high-speed data access Elasticsearch - search & indexing strategies Other modern data technologies for fast storage and retrieval Strong expertise ...

AI Technical Architect

Hiring Organisation
Akkodis
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £95,000 per annum
organisations with a strong focus on architecture and enterprise solutions 5+ years as a Technical Architect with hands-on experience in: MongoDB - schema design & performance tuning Redis - caching & high-speed data access Elasticsearch - search & indexing strategies Other modern data technologies for fast storage and retrieval Strong expertise ...

Azure Cosmos DB Admin and Developer

Hiring Organisation
Gazelle Global Consulting Ltd
Location
Central London, London, United Kingdom
Employment Type
Contract
searching for one of our key clients for an Azure Cosmos DB Admin & Developer to drive the build-out of cloud-native, high-performance financial applications. This role sits at the sharp end of modern banking engineering, owning the design, optimisation, and operational excellence of Cosmos DB across mission … critical workloads. You will shape partitioning models, indexing strategies, consistency models, and performance tuning while building reusable frameworks in C#/.NET or Node.js. Expect close collaboration with architects and DevOps to embed Cosmos DB into microservices, backed by robust CI/CD through Azure DevOps. This position ...

C# Software Engineer/Quantitative Developer (Junior and Senior) - Global Hedge Fund - C# & Python : £80-150k

Hiring Organisation
Hunter Bond
Location
London Area, United Kingdom
every part of the investment pipeline—from research tooling and data infrastructure to real-time trading systems. Key Responsibilities: Design, develop, and optimize high-performance trading tools and data pipelines using C# and ideally Python Build research platforms that empower quantitative analysts and strategists Integrate and manage large, complex … real-time and batch environments What We’re Looking For: Strong programming experience with C# Solid understanding of software engineering principles, design patterns, and performance tuning Experience in financial markets (equities, futures, FX, etc.) is a plus, but not required Familiarity with data science tools, APIs, and time ...

C# Software Engineer/Quantitative Developer (Junior and Senior) - Global Hedge Fund - C# & Python : £80-150k

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
every part of the investment pipeline—from research tooling and data infrastructure to real-time trading systems. Key Responsibilities: Design, develop, and optimize high-performance trading tools and data pipelines using C# and ideally Python Build research platforms that empower quantitative analysts and strategists Integrate and manage large, complex … real-time and batch environments What We’re Looking For: Strong programming experience with C# Solid understanding of software engineering principles, design patterns, and performance tuning Experience in financial markets (equities, futures, FX, etc.) is a plus, but not required Familiarity with data science tools, APIs, and time ...

C++ Software Engineer

Hiring Organisation
mthree
Location
London Area, United Kingdom
mission-critical software used by airlines worldwide - powering real-time flight operations, route optimisation, and next-generation cockpit intelligence. You’ll work on high-performance, multi-threaded systems that directly impact global aviation efficiency, fuel optimisation, and safety -contributing to one of the most advanced FMS platforms … real-time data processing for flight planning, scheduling, and air traffic control integration Implement and optimise algorithms for fuel efficiency, route optimisation, and aircraft performance modelling Contribute to multi-threaded, high-performance architectures used in large-scale airline operations Collaborate with system architects, engineers, and aviation domain specialists ...

C++ Software Engineer

Hiring Organisation
mthree
Location
City of London, London, United Kingdom
mission-critical software used by airlines worldwide - powering real-time flight operations, route optimisation, and next-generation cockpit intelligence. You’ll work on high-performance, multi-threaded systems that directly impact global aviation efficiency, fuel optimisation, and safety -contributing to one of the most advanced FMS platforms … real-time data processing for flight planning, scheduling, and air traffic control integration Implement and optimise algorithms for fuel efficiency, route optimisation, and aircraft performance modelling Contribute to multi-threaded, high-performance architectures used in large-scale airline operations Collaborate with system architects, engineers, and aviation domain specialists ...

Lead Backend Developer

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent
evolution. What will I be doing: Design, develop, and optimise scalable backend services in Python, leveraging FastAPI. Lead architectural discussions with a focus on performance, scalability, and reliability. Deliver complex features end-to-end - from design through deployment and monitoring. Provide mentorship through code reviews, technical guidance, and best … messaging patterns, and distributed systems. Proficient with cloud platforms (AWS, GCP, Azure) and containerisation (Docker; Kubernetes preferred). Strong engineering fundamentals - testing, clean code, performance tuning, and algorithms. Experience with relational and non-relational databases (PostgreSQL, MongoDB). Comfortable working in agile, fast-moving environments with high ownership. ...

Platform Engineer (Graph)

Hiring Organisation
Harvey Nash Plc
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 550 Daily
Engineer. Initial 3 months (could extend) Hybrid to London Inside of IR35 Early 2026 start date This resource will support the infrastructure design, configuration, performance tuning, definition of standards and best practices for a critical Graph-Powered Fraud Investigation Platform. Must hold active UK SC Clearance ...

Cloud Platform Engineering Lead / DevOps Lead

Hiring Organisation
KBC Technologies UK LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Code and modern CI/CD . Embed secure-by-design principles from architecture to runtime. Define and manage SLOs/SLIs ; drive observability, performance tuning, and automation. Promote API-first delivery , creating reusable patterns and golden paths. Mentor engineers and actively contribute to communities of practice. Core ...

Cloud BI & Analytics Consultant - Looker SME

Hiring Organisation
KBC Technologies UK LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
with executive-level customers. Required Qualifications 5+ years working with Looker and BigQuery. Strong proficiency in advanced LookML and semantic modelling. Experience in Looker performance tuning and model optimisation. Proven ability to develop complex dashboards with cross-filters, custom filters, and custom visualisations. Experience with governance, access management ...

Prisma Browser Deployment Specialist, Professional Services

Hiring Organisation
Palo Alto Networks
Location
London, England, United Kingdom
methods (e.g., GPO, MDM). Be a Proactive Technical Advisor: Serve as the go-to expert for PAB best practices, advanced feature utilization, and performance tuning, actively monitoring environments to pre-emptively identify, recommend, and resolve potential issues or areas for security posture improvement. Resolve Complex Escalations ...

Full Stack Software Engineer

Hiring Organisation
Firenze
Location
City of London, London, United Kingdom
design to production. Back-End Engineering (Java): Build APIs and microservices using Java (Spring Boot, Micronaut, or Quarkus), with guidance on best practices for performance and reliability. Front-End Engineering (TypeScript – Nuxt/Vue): Develop responsive, accessible UIs with strong component and state management. Data & Integration: Work with PostgreSQL … design resilient data flows. Quality & Testing: Contribute to our testing culture (JUnit, Playwright, CI pipelines) and learn how to scale reliable delivery. Performance & Observability: Gain hands-on experience with monitoring tools and learn how to build observable systems from day one. Documentation & Developer Experience: Help create clear technical docs ...

Full Stack Software Engineer

Hiring Organisation
Firenze
Location
London Area, United Kingdom
design to production. Back-End Engineering (Java): Build APIs and microservices using Java (Spring Boot, Micronaut, or Quarkus), with guidance on best practices for performance and reliability. Front-End Engineering (TypeScript – Nuxt/Vue): Develop responsive, accessible UIs with strong component and state management. Data & Integration: Work with PostgreSQL … design resilient data flows. Quality & Testing: Contribute to our testing culture (JUnit, Playwright, CI pipelines) and learn how to scale reliable delivery. Performance & Observability: Gain hands-on experience with monitoring tools and learn how to build observable systems from day one. Documentation & Developer Experience: Help create clear technical docs ...

L3 Data Engineer - Support

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £250 to £270 per day
structured telecom datasets (CDRs, network logs, subscriber data) Data Lake Technologies: Expertise in Apache Iceberg table format Schema evolution, partitioning, compaction & metadata management Query performance tuning with Athena & Redshift Spectrum Redshift Expertise: Data modeling, distribution styles, sort keys Workload management (WLM) Performance optimization & troubleshooting Python: Automation scripts … Data processing workflows Monitoring, debugging, validation scripts AWS Support/Operations: Troubleshooting ETL failures, performance bottlenecks, pipeline issues Monitoring cloud workloads (CloudWatch, CloudTrail) Handling incidents, root-cause analysis (RCA), patching & releases Cost optimization and resource usage tracking Data quality checks for telecom data pipelines Roles & Responsibilities Provide L2/ ...

L3 Storage & Backup Engineer, Associate Manager

Hiring Organisation
Accenture
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
compute pioneers to lead the charge on next-generation infrastructure for sovereign AI. To support this endeavour, we’re building a high-performance compute operations team in London. Our work will be sensitive, secure, 24x7 and on the most up-to-date high density compute stacks available. Shift teams … Develop and implement robust backup policies, retention schedules, and disaster recovery plans, ensuring minimal data loss and rapid restoration capabilities. •Conduct regular system audits, performance tuning, and capacity planning to optimize storage availability and scalability. •Monitor and manage NOC (Network Operations Centre) operations related to storage and backup ...

Robotic Process Automation Consultant

Hiring Organisation
Avensys Consulting UK
Location
London Area, United Kingdom
such as UiPath , Blue Prism , or Automation Anywhere . Configure and integrate RPA solutions with existing applications and databases. Conduct unit testing, debugging, and performance tuning of bots. Maintenance & Support Monitor and maintain RPA solutions post-deployment. Troubleshoot issues and implement fixes promptly. Update bots to accommodate changes ...

Robotic Process Automation Consultant

Hiring Organisation
Avensys Consulting UK
Location
City of London, London, United Kingdom
such as UiPath , Blue Prism , or Automation Anywhere . Configure and integrate RPA solutions with existing applications and databases. Conduct unit testing, debugging, and performance tuning of bots. Maintenance & Support Monitor and maintain RPA solutions post-deployment. Troubleshoot issues and implement fixes promptly. Update bots to accommodate changes ...

Development Lead

Hiring Organisation
Matchtech
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£1,000 - £1,100 per day
global development teams, fostering capability growth and collaboration. Continuous Improvement Champion modernisation through SAP BTP, Fiori, automation, and best-practice engineering techniques. Drive system performance tuning and post-go-live optimisation. Support knowledge sharing and continuous improvement across SAP development teams. Qualifications & Experience Essential Bachelor's or Master ...

Research Engineer

Hiring Organisation
Plasma
Location
London Area, United Kingdom
recommend whether to integrate, adapt, or design anew. Produce high-quality design specifications that engineers can implement: threat models, protocol sketches, interface boundaries, performance assumptions, and roll-out considerations. Build proofs-of-concept where useful to validate feasibility, performance, and integration risk (coding is important … protocol concerns , including (but not limited to): Zero-knowledge and applied cryptography Block propagation and networking Consensus and finality trade-offs Latency reduction and performance tuning Communicate trade-offs clearly across functions (Product, Research, Engineering, Platform): help align “where we want to go” with “how we get there ...

Research Engineer

Hiring Organisation
Plasma
Location
City of London, London, United Kingdom
recommend whether to integrate, adapt, or design anew. Produce high-quality design specifications that engineers can implement: threat models, protocol sketches, interface boundaries, performance assumptions, and roll-out considerations. Build proofs-of-concept where useful to validate feasibility, performance, and integration risk (coding is important … protocol concerns , including (but not limited to): Zero-knowledge and applied cryptography Block propagation and networking Consensus and finality trade-offs Latency reduction and performance tuning Communicate trade-offs clearly across functions (Product, Research, Engineering, Platform): help align “where we want to go” with “how we get there ...

MongoDB-Site Reliability

Hiring Organisation
Barclays Bank PLC
Location
Tower Hamlets, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Join our team as a MongoDB Site Reliability Engineer, where you'll be at the forefront of designing and maintaining robust, high-performance systems that power critical financial services. In this dynamic and fast-paced environment, your role will be essential to ensuring our infrastructure remains resilient, secure … should have experience with: Working in Site Reliability Engineering, DevOps, and MongoDB administration in financial services. Using MongoDB features like replicaset, sharding, backups, performance tuning, and shell scripting. Writing scripts in Python or Bash to automate tasks and reduce manual work. Some other highly valued skills may include ...

MongoDB-Site Reliability

Hiring Organisation
Barclays Bank Plc
Location
Poplar, Greater London, UK
Employment Type
Full-time
Join our team as a MongoDB Site Reliability Engineer, where you'll be at the forefront of designing and maintaining robust, high-performance systems that power critical financial services. In this dynamic and fast-paced environment, your role will be essential to ensuring our infrastructure remains resilient, secure … should have experience with: Working in Site Reliability Engineering, DevOps, and MongoDB administration in financial services. Using MongoDB features like replicaset, sharding, backups, performance tuning, and shell scripting. Writing scripts in Python or Bash to automate tasks and reduce manual work. Some other highly valued skills may include ...

L3 Compute & HPC Assoc Manager

Hiring Organisation
Accenture
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
compute pioneers to lead the charge on next-generation infrastructure for sovereign AI. To support this endeavor, we’re building a high-performance compute operations team in London. Our work will be sensitive, secure, 24x7 and on the most up-to-date high density compute stacks available. Shift teams … Support AI model training platforms by maintaining compute resources, optimizing scheduling, and ensuring compatibility with AI frameworks and libraries. •Monitor, analyse, and fine tune performance metrics addressing bottlenecks or inefficiencies. •Develop and maintain automation scripts and tools (e.g., PowerShell, Python, Bash) to streamline operational tasks, monitoring, and reporting. •Document ...