1 to 25 of 56 Performance Tuning Jobs in London

SQL Server DBA

Hiring Organisation
Deerfoot Recruitment Solutions
Location
Sunbury-On-Thames, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
Database Maintenance & Security: Manage and support MS SQL Servers, designing data backups, reviewing security procedures, managing user permissions, and applying crucial patches or upgrades. Performance Tuning & Optimisation: Monitor, optimise and deliver performance tuning or modifications to software code and database migrations to ensure high availability ...

Senior Data Engineer

Hiring Organisation
Eden James Consulting Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Data Factory and Databricks, replacing legacy SSIS pipelines. Identifying opportunities to harden and automate manual steps within the Finance Close workflow Conduct T-SQL performance tuning across on-prem and cloud environments.Conduct T-SQL performance tuning across on-prem and cloud environments. Collaborate with ...

Software Engineer

Hiring Organisation
SS8
Location
Kingston Upon Thames, Surrey, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
visualize the critical intelligence that gives law enforcement, intelligence agencies, and emergency services the real-time insights that help save lives. Our high performance, flexible, and future-proof solutions also enable mobile network operators to achieve regulatory compliance with minimum disruption, time, and cost. SS8 is trusted … with 4 years of experience to join our core engineering team. This role is firmly focused on hands-on C++ development, working on high-performance, high-volume data processing systems in telecom and similar environments. You will collaborate with experienced engineers, contribute to real-world systems, and progressively take ...

Dynamics 365 F&O Developer

Hiring Organisation
Church International Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Design and build integrations between F&O and external systems using Power Automate, Dataverse, virtual tables, and RESTful APIs. Ensure data integrity, security, and performance in integration solutions. Create and maintain automated workflows and approval processes (using Power Automate, software Agents in Copilot studio, and native F&O workflows … consistency, and alignment with finance and procurement requirements. Provide ongoing maintenance, troubleshooting, and third-level support for new and existing Dynamics 365 applications, including performance tuning and bug fixes. Support user training and create technical support documentation. Consult with clients and end-users on technical and functional aspects ...

Site Reliability Engineer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
activities, identify root causes, and execute plans to permanently resolve them. Architecture Support: Support development and engineering teams in building highly available, scalable solutions. Performance & Capacity: Conduct performance tuning and capacity planning to align perfectly with client business needs. Cloud Migrations: Drive or support implementation teams ...

Data Engineer (All Levels, Analytics & Platform) - UK Wide

Hiring Organisation
describe.me
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £120,000 per annum
Principal) Set data architecture, mentor engineers, lead platform strategy and larger initiatives What You'll Bring Technical Expertise: Strong SQL—comfortable with complex transformations, performance tuning and warehouse-specific dialect Strong Python skills (or Scala/Java where relevant) for pipeline development and tooling Hands-on experience with ...

Senior Data Architect

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
hands-on Senior Data Architect who is equally comfortable designing the target state for a multi-system SQL data estate, writing and tuning the T-SQL that delivers it, and standing up the security, monitoring and operational practices that keep it running. You will own data architecture across … framework and PowerShell development at expert level partition design and partition-aligned indexing, clustered/nonclustered index strategy, deduplication, parallel-run cutovers, schema migration, performance tuning of high-impact production queries. Driving the in-flight ETL replatform replacing legacy SSIS jobs with a table-driven, parallel ...

Senior .Net Back End Developer

Hiring Organisation
Ascend Consulting
Location
North West London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £80,000 per annum
Server and SAP Business One backend tables Database Management : Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets Performance Optimization : Monitor and enhance API performance, database query execution, and application scalability Documentation : Maintain clear and detailed documentation for APIs, database structures … Code Quality : Conduct code reviews, debugging, and error handling to maintain system reliability Best Practices : Stay up to date with API design standards, database performance tuning, and cloud integration trends What You’ll Need 5+ years of backend development experience Strong .NET skills for API development and business ...

Senior .Net Developer

Hiring Organisation
Ascend Consulting
Location
NW7, Mill Hill, Greater London, United Kingdom
Employment Type
Permanent
Salary
£50000 - £85000/annum
Server and SAP Business One backend tables Database Management : Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets Performance Optimization : Monitor and enhance API performance, database query execution, and application scalability Documentation : Maintain clear and detailed documentation for APIs, database structures … Code Quality : Conduct code reviews, debugging, and error handling to maintain system reliability Best Practices : Stay up to date with API design standards, database performance tuning, and cloud integration trends What You’ll Need 5+ years of backend development experience Strong .NET and C# skills for API development ...

Senior KDB+ Developer

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
collaboration, and a passion for cutting‐edge technologies. Role Overview We are seeking an experienced Senior KDB+ Developer to design, develop, and optimize high performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture, performance tuning at scale, and close … days in the office) Key Responsibilities Design, develop, and maintain kdb+ tick systems, with a strong understanding of data organisation, schema design, and the performance implications of different architectural approaches. Build and operate solutions handling large scale, high frequency datasets, ensuring low latency, high throughput, and efficient memory usage. ...

Consulting Customer Success Technical Architect Professional London, GB

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
ideas, and high‐availability design. Guide customers up the data streaming maturity curve with recommendations on advanced topics (data mesh, stream processing, utilization optimization, performance tuning). Develop and present periodic customer reviews, including analysis of technical health and operational performance, to Confluent senior management. Document … Private Service Connect, TLS/SSL, SASL). Experience prototyping and analyzing code in multiple languages (Java, Python, Go, etc.). Experience with JVM tuning and troubleshooting. Experience operating Linux; proficient in configuring, tuning, and troubleshooting both RedHat and Debian‐based distributions. Ability to learn new technologies quickly ...

Senior Technology Architect Snowflake

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
technology evaluations, and platform transformation initiatives. Establish governance, security, resilience, scalability, and cost‐optimization frameworks. Lead Snowflake architecture covering security, governance, RBAC, data sharing, performance optimization, and multi‐environment strategy. Define enterprise data platform standards and operational best practices. Guide warehouse sizing, workload management, performance tuning ...

Principal Engineer - Java - £110,000

Hiring Organisation
IntecSelect
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
with data teams to define robust data pipelines and scalable cloud-based data platforms using tools like Apache Kafka, Snowflake, or Databricks. Monitoring and Performance Tuning: Implement advanced monitoring and observability solutions using tools like Prometheus, Grafana, or Datadog to proactively identify and resolve performance bottlenecks. Code … System Optimisation: Proactively analyse and optimise existing systems for improved performance, scalability, and maintainability. Core skill set for this position: Strong experience building and scaling banking payment systems including either Faster Payments, Real Time Payments, Card payments, BACS, mobile wallets and APIs is a must have. Experience leading upon ...

Principal Engineer - Java - £110,000

Hiring Organisation
Intec Select Ltd
Location
London, Broad Street, United Kingdom
Employment Type
Permanent
Salary
£100000 - £110000/annum Hybrid + 25% bonus
with data teams to define robust data pipelines and scalable cloud-based data platforms using tools like Apache Kafka, Snowflake, or Databricks. Monitoring and Performance Tuning: Implement advanced monitoring and observability solutions using tools like Prometheus, Grafana, or Datadog to proactively identify and resolve performance bottlenecks. Code … System Optimisation: Proactively analyse and optimise existing systems for improved performance, scalability, and maintainability. Core skill set for this position: Strong experience building and scaling banking payment systems including either Faster Payments, Real-Time Payments, Card payments, BACS, mobile wallets and APIs is a must have. Experience leading upon ...

Principal Engineer (Payments)

Hiring Organisation
Intec Select Ltd
Location
London, Fitzrovia, United Kingdom
Employment Type
Permanent
Salary
£90000 - £115000/annum Hybrid + 25% bonus
with data teams to define robust data pipelines and scalable cloud-based data platforms using tools like Apache Kafka, Snowflake, or Databricks. Monitoring and Performance Tuning: Implement advanced monitoring and observability solutions using tools like Prometheus, Grafana, or Datadog to proactively identify and resolve performance bottlenecks. Code … System Optimisation: Proactively analyse and optimise existing systems for improved performance, scalability, and maintainability. Core skill set for this position: Strong experience building and scaling banking payment systems including either Faster Payments, Real-Time Payments, Card payments, BACS, mobile wallets and APIs is a must have. Experience leading upon ...

Senior Data Engineer (Informatica)

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £530 per day
shell scripts for automation, job scheduling, and data processing Perform data analysis, mapping, and transformation for complex data sources Ensure data quality, integrity, and performance optimisation across ETL processes Collaborate with business and technical teams to translate requirements into scalable data solutions Support testing, deployment, and production support activities …/SQL) Proficiency in UNIX/Linux shell scripting Proven experience working in Data Warehouse/ETL environments Experience in data integration, transformation, and performance tuning Strong understanding of ETL frameworks, data pipelines, and batch processing Desirable Skills Working knowledge of SAS (especially in ETL context) Experience ...

Principal Engineer, CoinDesk Data Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
provides market infrastructure and information services. These include: Bullish Exchange – a regulated and institutionally focused digital assets spot and derivatives exchange, integrating a high-performance central limit order book matching engine with automated market making to provide deep and predictable liquidity. Bullish Exchange is regulated in Germany, Hong Kong … Gibraltar. CoinDesk Indices – a collection of tradable proprietary and single-asset benchmarks and indices that track the performance of digital assets for global institutions in the digital assets and traditional finance industries. CoinDesk Data – a broad suite of digital assets market data and analytics, providing real-time insights into ...

Boomi (SC Cleared Platform Engineer)

Hiring Organisation
Square One Resources
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 350 - 400 Daily
Docker-based platform deployments Building and maintaining CI/CD pipelines Infrastructure as Code using Terraform, Bicep or CloudFormation Runtime hardening and platform security Performance tuning, monitoring and operational excellence Platform automation and deployment best practices Supporting enterprise-scale integration programmes using the latest Boomi technologies What ...

Senior Technical Lead / Architect (Contract)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
environments. The ideal candidate combines strong hands‐on engineering capability with architecture leadership, system design expertise, and a proven track record of optimizing high‐performance, low‐latency applications used by front‐office trading businesses. This role will drive technical strategy, architecture decisions, platform modernization, performance tuning … mission‐critical trading systems. Key Responsibilities: Lead architecture, design, and development of complex trading and market‐facing platforms. Define system architecture, scalability, resilience, and performance strategies for business‐critical applications. Drive modernization of legacy trading systems while ensuring business continuity and platform stability. Partner with traders, quants, business stakeholders ...

Database Reliability Engineer

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
role requires a database reliability expert who can thrive in a dynamic environment, supporting and enhancing highly available, highly reliable database deployments, ensuring optimal performance, and mentoring junior engineers to support our applications. This position will play a vital role in ensuring my clients containerization initiatives succeed and support … Kubernetes and Docker, with substantial experience in automating reliable deployments, building and maintaining resilience within the database platform, secure database operations methodologies, observability and performance management. We are also exploring other NoSQL database engines to support our production strength applications, so experience with diverse database systems is a plus. ...

Database Reliability Engineer

Hiring Organisation
17918
Location
London, United Kingdom
role requires a database reliability expert who can thrive in a dynamic environment, supporting and enhancing highly available, highly reliable database deployments, ensuring optimal performance, and mentoring junior engineers to support our applications. This position will play a vital role in ensuring my clients containerization initiatives succeed and support … Kubernetes and Docker, with substantial experience in automating reliable deployments, building and maintaining resilience within the database platform, secure database operations methodologies, observability and performance management. We are also exploring other NoSQL database engines to support our production strength applications, so experience with diverse database systems is a plus. ...

Staff Engineer - Permanent role (Java 17)

Hiring Organisation
Nicoll Curtin Technology
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 85,000 Annual
Jenkins) and DevOps principles Experience building cloud-native systems (AWS) with scalability and reliability in mind Strong grounding in automated testing (unit, integration, contract, performance) What sets you apart at Staff level This is where the role really differentiates beyond coding: Architecture-first thinking Strong experience with distributed systems … balancing delivery vs engineering quality Operational excellence mindset Experience with observability (logs, metrics, tracing) and production systems Exposure to secure coding, reliability engineering, and performance tuning Nice to have Experience with Kubernetes, containers, or infrastructure as code (Terraform) Familiarity with NoSQL (MongoDB), caching (Redis), and data optimisation Exposure ...

SC Cleared Data Engineer - Informatica PowerCentre experience required

Hiring Organisation
Opus Recruitment Solutions
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/day Remote
/SQL) Proficiency in UNIX/Linux shell scripting Proven experience working in Data Warehouse/ETL environments Experience in data integration, transformation, and performance tuning Strong understanding of ETL frameworks, data pipelines, and batch processing Desirable Skills Working knowledge of SAS (especially in ETL context) Experience ...

Senior Database Developer (SQL)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
deliver scalable solutions Design and enhance data pipelines, reporting solutions, and operational tooling Support and improve critical business applications and databases Contribute to performance tuning, automation, and continuous improvement initiatives Collaborate with development teams across the wider technology function Requirements Strong commercial experience working with SQL and relational ...

Platform AWS Engineer (SC Cleared)

Hiring Organisation
Hays Technology
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£492/day £492 per day INSIDE IR35
addressing, CIDRs, TCP/IP, and TLS certificates Experience supporting Java applications, JVMs, and process management Nginx administration, particularly as a reverse proxy Performance tuning and capacity management across CPU, memory, and storage Experience with OpenVPN and SSH client/server configurations AWS Administration Management of EC2 instances ...