1 to 25 of 378 Performance Tuning Jobs

Senior Database Engineer - Postgres

Hiring Organisation
DRW
Location
London, UK
Employment Type
Full-time
will be responsible for implementation, support and maintenance of mission critical database environments. The administration of these environments includes clustering, storage, securing, monitoring, performance tuning, troubleshooting, and disaster recovery. This person will help manage and support current and future database and storage environments and initiatives, and proactively evaluate … keep up with the dynamic and growing business needs of DRW. Responsibilities: Proactively manage and optimize various database platforms and related OS environmentsPerform database performance and query tuningImplement and maintain production and non-production databasesPerform database backups, restores, log shipping, mirroring and replication, etc. Work with system engineering team ...

Mainframe CICS Systems Programmer Senior

Hiring Organisation
USAA
Location
Tampa, Florida, United States
Employment Type
Permanent
Salary
USD 218,030 Annual
needs. The Opportunity USAA Mainframe Infrastructure team is looking for Senior level Mainframe CICS Systems Programmer professional responsible for the installation, configuration, maintenance, and tuning of IBM's Customer Information Control System (CICS) on mainframe z/OS operating systems. At USAA, CICS is a middleware platform crucial … maintaining CICS Transaction Server and related software. This involves applying vendor patches, fixes, and new product releases, often using tools like SMP/E. Performance and Capacity Management: Monitoring CICS system performance, identifying bottlenecks, and tuning CICS regions to meet service level agreements (SLAs). This ...

Database DevOps Engineer

Hiring Organisation
Citigroup
Location
Belfast, Down, United Kingdom
Salary
£ 50 K
MongoDB, IBM Object Store, and Snowflake (hosted on Private Cloud – AWS).What you’ll doManage Hybrid Database Infrastructure: Oversee the day-to-day reliability, performance, capacity, and upkeep of database systems hosted across on-prem physical/VM servers, OpenShift clusters, and Cloud VMs (Oracle, OraaS, MongoDB, IBM Object … zero or near-zero downtime.Implement AI & Agentic AI Solutions: Develop intelligent agents and automated solutions for real-time telemetry monitoring, automated index/query tuning, proactive anomaly detection, and automated self-healing workflows.Containerize & Modernize Workloads: Work with Red Hat OpenShift and containerized database/data services to streamline microservice ...

Oracle DBA

Hiring Organisation
Vaco LLC
Location
Fairfield, Ohio, United States
Employment Type
Permanent
Salary
USD Annual
seeking an experienced Senior Oracle EBS Database Administrator (DBA) to join our Oracle ERP support team. This role is responsible for the administration, maintenance, performance, security, and availability of the Oracle E-Business Suite (EBS) platform and its underlying Oracle database environment. The ideal candidate will possess strong expertise … supporting Oracle EBS R12.2.x environments, including database administration, EBS application tier management, cloning, patching, upgrades, performance tuning, and disaster recovery. This individual will work closely with Oracle functional, technical, infrastructure, and development teams to ensure a stable, secure, and highly available Oracle ERP ecosystem. Key Responsibilities Oracle ...

Senior Cloud Operations Engineer

Hiring Organisation
NICE Systems
Location
United Kingdom
Salary
£ 70 K
secure, and highly available AWS cloud infrastructure leveraging services such as EC2, EKS, ECS, RDS, S3, VPC, Lambda, and IAM. Drive the reliability and performance of containerized applications by managing Amazon EKS and ECS environments, including cluster operations, networking, scaling, and troubleshooting. Ensure the stability, security, and efficiency … production Linux environments through system administration, performance tuning, storage management, networking, and incident resolution. Maintain and optimize relational databases (PostgreSQL, MySQL, Aurora) and NoSQL platforms (DynamoDB, Redis), ensuring high availability, performance, and disaster recovery readiness. Strengthen the organization's cloud security posture through effective management ...

Senior Software Engineer – Ultra Low Latency Risk Engine Developer (VP)

Hiring Organisation
Citigroup
Location
Belfast, Down, United Kingdom
Salary
£ 70 K
components that sit directly in the cash equities trading hot path, ensuring pre-trade and real-time risk controls are enforced with microsecond-level performance while maintaining correctness and resiliency at scale. This is a hands-on, deeply technical role that also carries leadership responsibilities — mentoring engineers, driving architecture … Risk Engine responsible for real-time pre-trade risk checks, position limits, and exposure controls across cash equities electronic execution flows.Architect and optimize high-performance, lock-minimal, multi-threaded components capable of processing risk decisions in the sub-microsecond to low-microsecond range.Integrate risk and position components with Client ...

Senior AWS Cloud Data Engineer I

Hiring Organisation
American Honda Motor Co., Inc
Location
Marysville, Ohio, United States
Employment Type
Permanent
Salary
USD Annual
automated deployments. Data Modeling & Transformation: Develop conceptual, logical, and physical data models for operational and analytical systems. Optimize queries, normalize datasets, and apply performance tuning techniques. Use Python, PySpark, and SQL for data transformation and automation. Security & Governance: Implement IAM roles and encryption policies for data protection. Ensure … compliance with governance standards using tools like Informatica CDGC/CDQ. Monitoring & Optimization: Monitor pipeline performance using CloudWatch and Glue job logs. Troubleshoot and resolve data quality and performance issues proactively. Qualifications, Experience, and Skills Minimum educational qualifications: A Bachelor's degree in Computer Science/Data Science ...

Senior Software Engineer - NWX Networx

Hiring Organisation
Iris Software
Location
United Kingdom
Salary
£ 70 K
deliverables· Drive continuous improvement and champion responsible AI adoption with team governance practicesRequired Experience & SkillsTechnical Skills· Frontend Development: Strong proficiency with ASP.NET MVC, including performance optimisation and component architecture OR working knowledge with focus on backend specialisation· Backend Development: Strong proficiency with .NET Core, C#/VB.NET , ASP.NET Core … debugging. Using them critically and responsibly to improve quality, productivity and decision-making.· Observability: Advanced DataDog, Application Insights or Amazon CloudWatch implementation with performance tuning and cost optimisation· Infrastructure as Code: Infrastructure as Code with either Terraform, Bicep, ARM Templates or AWS CloudFormation/CDK· CI/ ...

Data Operations Engineer (Hybrid) - 30039

Hiring Organisation
HII's Mission Technologies division
Location
Columbia, Maryland, United States
Employment Type
Permanent
Salary
USD Annual
database availability. Systems Engineering Oversight: Oversee the deployment and maintenance of data flows using standardized templates and core libraries provided by the Engineering team. Performance Tuning: Responsible for immediate cluster performance tuning and pipeline monitoring to ensure data health and discovery latency are minimized. Strategic Alignment ...

Data Operations Engineer (Hybrid) - 30180

Hiring Organisation
HII's Mission Technologies division
Location
San Antonio, Texas, United States
Employment Type
Permanent
Salary
USD Annual
database availability. Systems Engineering Oversight: Oversee the deployment and maintenance of data flows using standardized templates and core libraries provided by the Engineering team. Performance Tuning: Responsible for immediate cluster performance tuning and pipeline monitoring to ensure data health and discovery latency are minimized. Strategic Alignment ...

Senior ETF Engineer, Investment Technology

Hiring Organisation
Invesco
Location
Greater London, United Kingdom
Employment Type
Full Time
processes across Equities, Fixed Income, and Alternatives. This role will partner closely with portfolio managers, quantitative researchers, and business teams to deliver scalable, high-performance solutions that support both technology-owned platforms and business-driven workflows (e.g., co-developed tools such as dashboards and portfolio management utilities). … APIs, and microservices supporting portfolio analytics, optimization workflows, and data pipelines Design and optimize SQL-based data processing (PostgreSQL, SQL Server), including complex queries, performance tuning, and large-scale ETL workflows. Implement and support distributed, event-driven architectures (e.g., Kafka, asynchronous workflows) for scalable platform execution. Develop ...

Principal Engineer (AWS & Java)

Hiring Organisation
London Stock Exchange Group
Location
Nottingham, Nottinghamshire, United Kingdom
Salary
£ 70 K
guide effective development approaches by the engineering teams.Lead the implementation of the most complex and business‐critical changes, setting the standard for quality, performance, and maintainability.Provide hands‐on expertise in Java‐based systems, including concurrency, performance tuning, memory management, and API design.Non‐Functional Ownership & System PerformanceTake … capacity management, ensuring the platform performs predictably under variable and peak loads.Provide deep expertise in working with large databases and data stores, including performance optimisation, data access patterns, and operational scaling.Problem Solving & Technical Decision SupportSolve the most complex and ambiguous technical problems, particularly those spanning multiple components or teams.Act ...

SQL DBA - Kingston, Surrey - Hybrid - £85,000

Hiring Organisation
Ashdown Group
Location
Kingston Upon Thames, Surrey, South East, United Kingdom
Employment Type
Permanent
Salary
£85,000
looking for an experienced Senior SQL Server Database Administrator to take full technical ownership of their SQL Server estate, driving the modernisation, scalability, performance and resilience of our database services across a hybrid cloud environment. This is a hands-on, senior technical role where you will be responsible … database architecture and design, working closely with agile development teams to influence technical decisions, challenge inefficient database code and promote best practices. From advanced performance tuning and disaster recovery to security governance and data lifecycle management, you will ensure our database services meet the highest standards of operational ...

Principal Engineer (AWS & Java)

Hiring Organisation
London Stock Exchange Group
Location
Nottingham, UK
Employment Type
Full-time
guide effective development approaches by the engineering teams. Lead the implementation of the most complex and business‐critical changes, setting the standard for quality, performance, and maintainability. Provide hands‐on expertise in Java‐based systems, including concurrency, performance tuning, memory management, and API design. Non‐Functional Ownership … capacity management, ensuring the platform performs predictably under variable and peak loads. Provide deep expertise in working with large databases and data stores, including performance optimisation, data access patterns, and operational scaling. Problem Solving & Technical Decision SupportSolve the most complex and ambiguous technical problems, particularly those spanning multiple components ...

Senior Snowflake Developer

Hiring Organisation
Proactive Appointments
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£700.00 - £770.00 per day
migration. Develop and optimise data warehouse structures, star schemas and dimensional models to support business and regulatory reporting. Apply best practices for Snowflake performance tuning, query optimisation and cost efficiency. Implement automated testing, source control and CI/CD processes to support controlled and reliable deployments. Ensure data … data modelling, transformation, testing and deployment. Advanced Python development skills for data engineering and automation. Strong SQL Server experience, including database design, query optimisation, performance tuning and troubleshooting. Significant experience designing and delivering enterprise-scale ETL/ELT solutions. Strong understanding of data warehousing principles, star schema design ...

Lead Data Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Design scalable, reusable data processing and data quality frameworks using Python, PySpark, and dbt Build and optimize batch and streaming data pipelines with strong performance, fault tolerance, and observability Develop and operate workflow orchestration (e.g., Apache Airflow) to schedule, monitor, and manage data movement and transformations Model and transform … data for analytics using SQL and dbt to support business intelligence and reporting workloads Write production-grade Python/PySpark code with disciplined testing, performance tuning, and maintainable object-oriented design Implement infrastructure-as-code (e.g., Terraform) to provision and manage cloud-based data platform components Containerize ...

Lead Data Engineer

Location
London, United Kingdom
Design scalable, reusable data processing and data quality frameworks using Python, PySpark, and dbt Build and optimize batch and streaming data pipelines with strong performance, fault tolerance, and observability Develop and operate workflow orchestration (e.g., Apache Airflow) to schedule, monitor, and manage data movement and transformations Model and transform … data for analytics using SQL and dbt to support business intelligence and reporting workloads Write production-grade Python/PySpark code with disciplined testing, performance tuning, and maintainable object-oriented design Implement infrastructure-as-code (e.g., Terraform) to provision and manage cloud-based data platform components Containerize ...

Lead Data Engineer

Location
Westminster, West End, United Kingdom
Design scalable, reusable data processing and data quality frameworks using Python, PySpark, and dbt Build and optimize batch and streaming data pipelines with strong performance, fault tolerance, and observability Develop and operate workflow orchestration (e.g., Apache Airflow) to schedule, monitor, and manage data movement and transformations Model and transform … data for analytics using SQL and dbt to support business intelligence and reporting workloads Write production-grade Python/PySpark code with disciplined testing, performance tuning, and maintainable object-oriented design Implement infrastructure-as-code (e.g., Terraform) to provision and manage cloud-based data platform components Containerize ...

PostgreSQL Specialist (SC Cleared)

Hiring Organisation
scrumconnect ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
standard for how the programme logs, audits and recovers its data. Key Responsibilities Investigate data incidents, such as unexpected changes, deletions, corruption, performance failures and suspected misuse, and establish the root cause. Reconstruct events using transaction logs, WAL archives, point-in-time recovery (PITR), audit logs and replication streams. … Advise on audit and logging design (for example pgaudit and database activity monitoring) so future incidents can be traced. Support live incident response, including performance tuning and fault finding on production databases. Review backup, disaster recovery, replication and archiving arrangements. Support database migrations and upgrades, including near-zero ...

Platform Engineering Specialist - Database Infrastructure

Hiring Organisation
TurleyWay Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
passionate about building and operating highly scalable database platforms? Have you administered and optimised mission-critical PostgreSQL environments in cloud-first organisations, ensuring performance, availability and resilience at scale? Can you demonstrate broad technical knowledge across Platform Engineering, DevOps and Infrastructure, alongside experience with automation and scripting using Python … technology landscape. This is an opportunity to become a technical authority for database infrastructure, helping shape the future of the database platform whilst improving performance, resilience, scalability and operational efficiency. A selection of your key responsibilities will include administering and optimising large-scale PostgreSQL environments, managing connection pooling ...

Senior Java Developer (Low-Latency & JVM Performance)

Hiring Organisation
Luxoft
Location
London, UK
Employment Type
Full-time
Project description Join a global technology team developing high-performance, low-latency platforms supporting critical trading and real-time processing workflows. The project focuses on building event-driven and reactive Java systems designed to operate at high frequency with demanding latency and throughput requirements. The environment combines advanced … performance engineering, concurrency, networking, and Linux optimization. The team works close to the hardware and operating-system level, optimizing memory utilization, network communication, and application performance to deliver highly efficient and reliable systems. Responsibilities Design and develop high-performance, low-latency applications using Core Java. Perform advanced ...

Oracle Database Engineer - up to 90,000 + Bonus - Hybrid

Hiring Organisation
Involved Solutions
Location
London, United Kingdom
Salary
£ 70 K
hire an experienced Oracle Database Engineer for their database and platform engineering team. This is a hands-on position covering Oracle administration, automation and performance engineering across large-scale Exadata and cloud environments, including Autonomous Exadata Cloud@Customer.The Oracle Database Engineer role suits an Oracle professional who wants … move beyond routine administration into platform engineering: building automation that removes manual overhead, tuning at scale, and owning multi-tenant database architecture across mission-critical systems.About the role - Oracle Database Engineer (Oracle DBA):Build automation tooling and platform solutions using Ansible and scripting to reduce manual work across ...

Senior PostgreSQL DBA

Hiring Organisation
Jobot
Location
Washington, Washington DC, United States
Employment Type
Permanent
Salary
USD 220,000 Annual
220K TS/SCI Mission Work in DC Own Postgres HA/DR, Performance & Security in a Mission-Critical Environment This Jobot Job is hosted by: Hunter King Are you a fit? Easy Apply now by clicking the "Quick Apply" button and sending us your resume. Salary … team that is detail-oriented, quick to adapt, and committed to the mission. We are seeking a Senior PostgreSQL Database Administrator to own the performance, availability, scalability, and security of PostgreSQL environments supporting a mission-critical government program. Why join us? Compensation up to $220K Health insurance Dental insurance ...

PostgreSQL DBA - AWS, Aurora, RDS - REMOTE

Hiring Organisation
Henderson Scott
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£500 - £525 per day
high-profile public sector project. This role is fully remote and falls inside IR35 . The Role: You will be responsible for managing, tuning, and scaling mission-critical database infrastructure hosted in secure cloud environments. Working closely with engineering and DevOps teams, you will ensure optimal performance, high … availability, and strict adherence to government security standards. Core Responsibilities: Design, configure, and manage PostgreSQL, Amazon Aurora, and Amazon RDS instances. Drive database performance tuning, slow query troubleshooting, and proactive monitoring. Execute schema updates, migrations, and engine upgrades safely within cloud ecosystems. Support disaster recovery, backup protocols ...

GPU Systems Engineer

Hiring Organisation
Hudson River Trading
Location
London, UK
Employment Type
Full-time
clusters in globally distributed data centers. As such, this is a high-impact role with broad scope, from HPC/AI cluster design and performance tuning, to troubleshooting and automation for thousands of nodes. ResponsibilitiesDesign, build, and optimize large-scale distributed GPU compute clustersIdentify and resolve GPU workloads … performance bottlenecks across compute, storage, and networking layersCollaborate with research and development teams to profile, benchmark, and fine-tune GPU-based workloadsAutomate system deployment, monitoring, and troubleshooting across thousands of nodesCollaborate with research, and engineering teams to support evolving workloadsOwn critical infrastructure projects — from concept to implementation and supportTest ...