76 to 100 of 217 Performance Tuning Jobs

CICS Mainframe Systems Programmer

Hiring Organisation
NTT
Location
London, UK
Employment Type
Full-time
growing team in the UK and rest of Europe.About the roleThe CICS Mainframe Systems Programmer is responsible for ensuring the stability, availability, performance, and continuous improvement of CICS services within the IBM Mainframe environment. The role requires strong technical expertise, domain knowledge, and specialist skills to operate, maintain … resolve complex technical issues.Lead problem determination, root cause analysis, and recovery activities during critical incidents.Design and implement new technology solutions to improve service availability, performance, and operational efficiency.Monitor CICS performance and system resources to ensure optimal response times and service levels.Develop, test, and maintain backup, recovery, and business ...

Production Engineer (SQL & Cloud Support)

Hiring Organisation
Appcast
Location
London, UK
databases, cloud infrastructure (AWS), system troubleshooting, and production support. You will work closely with customers, internal engineering teams, and operations to ensure system stability, performance, and reliability.Key ResponsibilitiesProvide production and application support for live systemsManage and maintain Microsoft SQL Server databasesTroubleshoot performance issues, database errors, and system outagesPerform … Science or related field5+ years of experience in Production Support, Application Support, DBA, or Engineering SupportStrong hands-on experience with:Microsoft SQL Server & SQLDatabase performance tuning and troubleshootingWindows and/or Linux environmentsExperience with:Patching, upgrades, and migrationsCloud platforms, preferably AWSStrong problem-solving and communication skillsNice to HaveExperience ...

Senior Software Engineer - Graph Analytics for Snowflake

Hiring Organisation
Neo4J
Location
London, UK
Employment Type
Full-time
effective in both.A genuine DevOps mindset: comfortable owning build pipelines, container images, releases, and the operational side of a product.Experience designing software for performance, scalability, and predictable cost on cloud infrastructure.Bonus PointsHands-on experience with Snowflake, especially Native Apps, Snowpark Container Services, or building stored procedures and UDFs … Trivy, etc.).Understanding of graph theory and graph algorithms (centrality, community detection, pathfinding, embeddings), or strong curiosity to learn them.Background in distributed systems, JVM performance tuning, or columnar/analytical query engines.Experience working in a distributed, remote-first team and shipping to enterprise customers.#Li-HybridWhy Join Neo4j Neo4j ...

PostgreSQL Developer / Database Migration Specialist (f/m/d) - Security

Hiring Organisation
Data-Warehouse GmbH
Location
Ottobrunn, Bayern, Germany
Employment Type
Permanent
Salary
EUR 65,000 - 90,000 Annual
Strong SQL and PostgreSQL experience • PL/pgSQL, stored procedures, functions, triggers, or comparable database-side programming • Database design, data modelling, schema development, and performance tuning • Data migration, ETL, transformation logic, and data validation • Linux-based environments and Git or comparable version control systems • Experience with reporting solutions … looking for: We are looking for experienced database professionals who understand that migration is not only about moving data, but also about preserving logic, performance, reliability, and business-critical functionality. You are a good fit if you: • Have a strong database engineering mindset • Can analyze complex source systems ...

Senior Full Stack Developer (Java / Angular)

Hiring Organisation
Pontoon
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £750 per day
Support Assist in the investigation and resolution of production issues. Participate in incident management, root cause analysis, and system improvement initiatives. Ensure platform stability, performance, and operational reliability. Technical Leadership & Mentoring Provide guidance and mentorship to other engineers. Share knowledge and best practices across the team. Foster a collaborative … Strong knowledge of relational database systems such as: Oracle Microsoft SQL Server Other enterprise-grade RDBMS platforms Experience with: Data modelling Query optimization Database performance tuning Large-scale data management Messaging & Integration Apache Kafka IBM MQ FIX Protocol Understanding of event-driven architectures and asynchronous processing patterns. Delivery ...

Cloud Operations Database Engineer

Hiring Organisation
Hackajob Ltd
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
with product delivery teams to support query optimisation and deployment activities. 90 Days Operate independently across the full scope of the role: database administration, performance optimisation, incident response, security protocols, backup and recovery, and cost monitoring. Contribute meaningfully to the team's continuous improvement agenda and begin sharing your … impact customers Quality and coverage of automation scripts and operational documentation Qualifications Essential Familiarity with relational databases including MS SQL, MySQL, and PostgreSQL - administration, performance tuning, and troubleshooting Scripting experience for task automation using PowerShell, Bash, Python, or Ruby Experience with applications deployed on AWS or Azure, including ...

DataStage Engineer

Hiring Organisation
eTeam Workforce Limited
Location
Manchester, Lancashire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 313 Daily
maintain ETL design documents, mapping specifications, and technical documentation Perform data profiling, validation, and reconciliation to ensure data quality Optimize DataStage jobs for performance, scalability, and reliability Troubleshoot and resolve ETL failures, data issues, and production incidents Work closely with DBAs, Unix teams, schedulers (TWS/IWS), and application … Senior DataStage Developer: Lead ETL design and review Mentor junior developers Own complex data domains and critical batch flows Support architectural decisions and performance tuning If you are interested in this position and would like to learn more, please send through your CV and we will ...

Software Developer - High Performance Trading Systems

Hiring Organisation
Appcast
Location
London, UK
Software Developer – High Performance Trading SystemsLocation: London (On-site)400k+ total compWe are looking for a talented software engineer to join a high-performing team responsible for architecting and delivering the systems that underpin a leading and disruptive global trading operation.You’ll work on the full lifecycle of high … throughput, low-latency platforms – including algorithmic trading engines, venue connectivity, and real-time pricing infrastructure. Expect deep technical ownership, constant performance tuning, and direct impact on production trading.What you’ll work on:Design and optimise mission-critical systems where microseconds and gigabits matterBuild core infrastructure for trading strategies ...

SQL Developer

Hiring Organisation
Tria
Location
London, United Kingdom
Employment Type
Contract
solutions within a complex enterprise environment. Essential Skills Strong Oracle PL/SQL development experience. IBM DataStage ETL development expertise. Advanced SQL development and performance tuning skills. Data warehousing and data integration experience. Experience working with large datasets in enterprise environments. Strong analytical and problem-solving skills. Desirable ...

Lead Java Developer (Server-side, Microservices) Bank - London

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
€500 - €800 per day
SpringBoot skills Experience of developing and deploying on Unix or Linux Hands-on experience of using the Kafka ecosystem Experience of profiling and performance tuning Experience of Behaviour-Driven and Test-Driven development principles and skills Experience of Public Cloud development Soft Skills: Have the ability to motivate ...

Senior Java Engineer (AI-Augmented Delivery) - Bank - London

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
€600 - €700 per day
SpringBoot skills Experience of developing and deploying on Unix or Linux Hands-on experience of using the Kafka ecosystem Experience of profiling and performance tuning Experience of Behaviour-Driven and Test-Driven development principles and skills Experience of Public Cloud development Soft Skills: Have the ability to motivate ...

Lead Software Developer, Costar Group - London

Hiring Organisation
Matterport
Location
London, UK
Employment Type
Full-time
leverage terabytes of data.Ability to analyse technical requirements and design new architectures, data models, and ETL strategies.Expertise in database design, complex T-SQL programming, performance tuning, and index analysis.Hands-on experience with cloud-based relational and non-relational databases.Facilitate discussions among developers to exchange ideas and introduce innovative ...

Data Principal

Hiring Organisation
Hackajob Ltd
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Your strategic mindset: Quality Advocate: You take personal pride in the integrity of your work. Beyond just fixing bugs, you champion quality assurance and performance tuning as a mindset, ensuring the data programs we build for our clients are robust, reliable, and respected. Industry Stewardship ...

Platform Lead - Audit Engineering

Hiring Organisation
KPMG
Location
London, UK
Employment Type
Full-time
maintenance of resilient and secure cloud-based solutions.Define and implement standardised patterns, practices, and tools to support the development lifecycle.Ensure platforms are optimized for performance, reliability, and scalability.Cloud OptimizationContinuously review and optimize cloud resources for cost efficiency and performance improvements.Ensure solutions adhere to best practices for security, compliance … Infrastructure as Code (IaC), CI/CD, and containerization.Experience managing and optimizing non-production environments to ensure stability and security.Expertise in cost optimization and performance tuning for cloud environments.Exceptional troubleshooting skills, with experience in 4th-line support for critical applications.Strong leadership and team-building skills, with experience ...

SQL Database Administrator

Hiring Organisation
Experis
Location
United Kingdom
Employment Type
Contract
months Security clearance: SC If you enjoy keeping mission-critical data environments running smoothly-and you're the person others turn to when performance or reliability issues hit-this is a strong opportunity. Our Client is hiring for a reputed client to join their Database Services team, supporting Microsoft … Server production databases with a focus on performance, security, and high availability. What you'll be doing: * Administer, maintain and support Microsoft SQL Server environments, including installations, configuration, upgrades, patching and migrations * Manage databases, instances, security settings, users, roles and permissions * Monitor and optimise performance-investigating bottlenecks, locking ...

Data Engineer

Hiring Organisation
TechYard
Location
Manchester Area, United Kingdom
platform architecture Work closely with technical and business stakeholders to understand requirements and deliver effective solutions Support testing, deployment and production implementation activities Troubleshoot performance, reliability and data quality issues Follow and contribute to engineering best practices across Databricks and cloud data platforms Support clients through different stages … technical stakeholders Desirable Experience Experience with any of the following would be highly beneficial Delta Lake Unity Catalog MLfow Databricks optimisation and performance tuning AI, Machine Learning or Generative AI initiatives AI-assisted development tools such as Claude, GitHub Copilot or Cursor Consultancy, professional services or client-facing ...

Head of Data & Analytics - Leading Edge - Financial Services (FinTech Start-up)

Hiring Organisation
Remote Recruit Services Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£110,000 - £130,000 per annum
data platform. Responsibilities include: Designing ETL and ELT pipelines Change Data Capture (CDC) AWS Database Migration Service (DMS) Amazon Redshift optimisation SQL performance tuning Data pipeline monitoring Automation Data lifecycle management AWS Data Platform Own the organisation's cloud data platform, including: Amazon Redshift AWS Database Migration Service ...

Cassandra Database Engineer - NoSQL

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 700 - 745 Daily
replication strategies and partitioning models. Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions). Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning. Manager cluster operations: node additions/decommissions, repairs (node ...

Solution Engineer - Data

Hiring Organisation
Appcast
Location
London, UK
Power BI, and Real-Time Intelligence — or comparable modern data platforms such as Databricks.Understanding of enterprise-grade non-functional requirements — high availability, disaster recovery, performance tuning, security, resilience, and cost optimisation — across both mission-critical databases and analytics platforms (including Fabric capacity sizing and workload/cost management ...

Cassandra Database Engineer - NoSQL

Hiring Organisation
Appcast
Location
London, UK
design, replication strategies and partitioning models.Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions).Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning.Manager cluster operations: node additions/decommissions, repairs (node tool), backups ...

Senior Software Engineer - Real-Time Data Platform

Hiring Organisation
Morningstar
Location
London, UK
Employment Type
Full-time
RoleYou'll be working on a distributed, event-driven platform responsible for processing billions of market data messages per day. This is a high-performance environment where reliability, scalability, and correctness are essential.Our platform acts as the backbone of the business, ensuring that accurate and timely market data flows … build cloud-native, highly available systems.Define and manage infrastructure using Terraform.Implement CI/CD pipelines and deployment workflows using tools like Harness.Optimise systems for performance, latency, throughput, and cost.What We're Looking ForExcellent collaboration and communication skills.Strong experience in distributed systems and event-driven architectures.Hands-on experience with: Apache ...

Senior Software Engineer – Real-Time Data Platform

Hiring Organisation
Morningstar
Location
Greater London, United Kingdom
Employment Type
Full Time
Salary
68200 to 95333.33 GBP Annually
working on a distributed, event-driven platform responsible for processing billions of market data messages per day. This is a high-performance environment where reliability, scalability, and correctness are essential. Our platform acts as the backbone of the business, ensuring that accurate and timely market data flows seamlessly … highly available systems. Define and manage infrastructure using Terraform. Implement CI/CD pipelines and deployment workflows using tools like Harness. Optimise systems for performance, latency, throughput, and cost. What We're Looking For Excellent collaboration and communication skills. Strong experience in distributed systems and event-driven architectures. Hands ...

Database Administrator (DBA)

Hiring Organisation
Technify Talent Limited
Location
Reading, Berkshire, United Kingdom
Employment Type
Permanent
Salary
£70000 - £80000/annum
complex, high-availability database environment that supports a sophisticated operational software platform. This is an opportunity to join an innovative engineering team where reliability, performance and automation are central to delivering cutting-edge technology. Working closely with software engineers, platform specialists and data teams, you'll ensure the database … production MariaDB/MySQL databases. Develop and manage robust database schema migrations with safe deployment, validation and rollback processes. Monitor, analyse and optimise database performance in high-volume, write-intensive environments. Design and maintain backup, recovery and data retention strategies, regularly validating restore processes. Implement and maintain database security ...

Database Administrator

Hiring Organisation
Stealth IT Consulting
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
months (Extension possible) Location: Mostly remote (Telford - occasional on-site attendance required) Job Description: As a Database Administrator, you will be responsible for the performance, integrity, and security of the databases in our organisation. You will ensure that data remains consistent, accessible, and secure across the database systems. Collaborating … database solutions that meet the organisation's needs. Responsibilities: Database Maintenance and Monitoring Install, configure, and maintain database management systems (DBMS) software Monitor database performance and ensure efficient operation Troubleshoot and resolve database-related issues in a timely manner Perform regular backups and ensure data recovery capabilities Database Security ...

Server Engineer

Hiring Organisation
Royal Berkshire NHS Foundation Trust
Location
Reading, RG1 5LA, United Kingdom
Salary
£49387.00 to £56515.00
support growth. 3. Analytical and Judgement Skills Technical Problem Solving : Act as escalation point for complex issues, using analytical skills to interpret logs and performance data. Risk Assessment : Identify and mitigate risks including security vulnerabilities and hardware failures. Decision-Making : Make informed decisions on upgrades and expansions, balancing technical …/software. Budget Management : Monitor budgets and identify cost-saving opportunities. 6. Service Development and Implementation Service Improvement : Continuously assess infrastructure for enhancements in performance and reliability. Business Requirements Translation : Convert clinical and administrative needs into technical deliverables. System Enhancements : Lead performance tuning and feature upgrades, ensuring ...