826 to 850 of 886 Performance Tuning Jobs

Fullstack Software Developer - Remote

Location
Pontefract, West Yorkshire, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Contract Data Engineer - £375/day Inside IR35 - Immediate Start

Hiring Organisation
Tenth Revolution Group
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£350.00 - £375.00 per day
particular focus on Azure Cosmos DB and NoSQL data modelling. You'll design and optimise data models, schemas and data structures, while considering performance, scalability and cost. You'll also support data migration and integration projects, working with technologies such as Azure Data Factory and SQL to build pipelines … scalable data models across SQL and NoSQL, with a strong focus on Azure Cosmos DB Design and optimise Cosmos DB models, including partitioning, indexing, performance, scalability, and cost. Define and implement data contracts, including schemas, versioning, and validation rules. Design and orchestrate ETL/ELT pipelines using Azure Data ...

Web: Full Stack Tech Lead

Location
Greater London, England, United Kingdom
native builder : Cursor, v0 , Claude Code (and friends) are daily drivers for rapid prototyping and refactors. React + TypeScript mastery: component design, hooks, performance, testing (Vitest/Jest, Playwright). FastAPI expertise: async patterns, Pydantic schemas, pagination, auth (OAuth2/OIDC), rate‐limits, background jobs. Elasticsearch fluency: mappings/… analyzers (ngrams, synonyms), aggregations, filters, sorting, performance tuning. Cloud & DevOps : solid experience on AWS and/or GCP , Docker, Terraform, GitHub Actions, monitoring/alerts. Datastores : Postgres (SQL, migrations), Redis (caching/queues). Quality & security : code reviews, type safety, lint/format, secrets mgmt, least‐privilege IAM, basic ...

Oracle DBA Lead

Location
Lancashire, England, United Kingdom
Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements. With more than … migration, validation and cutover of Oracle data. Translate designs into operations; assure integration with the wider platform. Resolve Oracle platform problems and support performance/scalability testing. Support governance approvals and transition to BAU. Skills We Can’t Do Without 5+ years of Oracle DBA experience with strong expertise ...

Lead Software Engineer - LLM Ops Platform Reliability

Hiring Organisation
Hackajob Ltd
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
site reliability practices to cutting-edge AI platforms. You'll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you'll find meaningful impact and growth here. As a Lead … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the LLM inference platform end to end. You will operate large language model serving stacks (such as vLLM ...

Lead Software Engineer - LLM Ops Platform Reliability

Location
Paisley, Scotland, United Kingdom
site reliability practices to cutting-edge AI platforms. You'll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you'll find meaningful impact and growth here. As a Lead … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the LLM inference platform end to end. You will operate large language model serving stacks (such as vLLM ...

Senior Backend Engineer (Java)

Hiring Organisation
Randstad Technologies Recruitment
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day Inside IR35 via Umbrella
/week on-site) Role Type: Contract About the Role We are seeking a Senior Backend Engineer to design, build, and scale resilient, high-performance distributed systems. This role is ideal for a pragmatic developer who thrives in fast-paced Agile environments, excels at navigating large existing codebases … track record of driving technical solutions independently. Nice-to-Haves Cloud platform experience with AWS or GCP . Experience with GraphQL and JVM performance tuning. Knowledge of SLOs/SLIs , error budgets, and high-scale consumer platforms. Experience with A/B testing frameworks or cross-team technical leadership. ...

Senior Backend Engineer (Java)

Hiring Organisation
Randstad Technologies
Location
Manchester, Lancashire, United Kingdom
Employment Type
Full-Time
Salary
£450.00 - £500.00 per day
/week on-site) Role Type: Contract About the Role We are seeking a Senior Backend Engineer to design, build, and scale resilient, high-performance distributed systems. This role is ideal for a pragmatic developer who thrives in fast-paced Agile environments, excels at navigating large existing codebases … track record of driving technical solutions independently. Nice-to-Haves Cloud platform experience with AWS or GCP . Experience with GraphQL and JVM performance tuning. Knowledge of SLOs/SLIs , error budgets, and high-scale consumer platforms. Experience with A/B testing frameworks or cross-team technical leadership. ...

Full-Stack Software Engineer (Frontend, Remote)

Location
Cumbria, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Full-Stack Software Engineer (Frontend, Remote)

Location
New Milton, Hampshire, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Full-Stack Software Engineer (Frontend, Remote)

Location
Bridgend, Glamorgan, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Full-Stack Software Engineer (Frontend, Remote)

Location
Leicester, Leicestershire, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Full-Stack Software Engineer (Frontend, Remote)

Location
Norwich, Norfolk, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Full-Stack Software Engineer (Frontend, Remote)

Location
West Yorkshire, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Full-Stack Software Engineer (Frontend, Remote)

Location
Portland, Dorset, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Full-Stack Software Engineer (Frontend, Remote)

Location
Worcester Park, Surrey, United Kingdom
across the full stack, from API and data layer to UI. Collaborate on the upcoming migration from Ember to React. Diagnose and fix scaling, performance, and reliability issues on our platforms. Set the bar on code quality through reviews, testing standards, and clear documentation. Mentor engineers on React best … with Front End frameworks. Background in short-term rental , property management, travel, or hospitality tech . Experience operating multi-tenant SaaS at scale, including performance tuning. Familiarity with AWS , Heroku , containers , and infrastructure-as-code . Ruby (Hanami) Ember JS PostgresQL AWS Typescript React Native Any hire made outside ...

Data Engineering Lead (SVP)

Location
Belfast City District, Northern Ireland, United Kingdom
this role is to lead applications systems analysis and programming activities. Proven leadership in building and scaling enterprise data services, driving cloud transformation, optimising performance, capacity, and delivering AI enabled operational and analytics platform. Responsibilities Lead the design, engineering and delivery of next generation cloud data services supporting data … issues with transparency. Skills & Experience Essential Proven in-depth commercial experience in the following key areas: Databricks – Lakehouse architecture, Spark, Delta Lake, workflows and performance tuning. Apache Spark & Scala – High-performance distributed data processing and optimisation. Cloud Data Engineering (AWS) – Cloud-native data platforms and distributed computing. Data ...

Founding Engineer

Location
City Of London, England, United Kingdom
quantitative systems. The company is establishing its founding engineering team to design, build, and scale their core platform from the ground up, delivering high-performance solutions for complex data processing and mission-critical workflows. The Role We are seeking an exceptional Founding Engineer, a hands-on technical expert … throughput systems. You will own the total realisation of complex ideas into working solutions, architecting systems from scratch, refactoring paradigms where needed, creating high-performance code across the tech stack, and taking full responsibility for end-to-end execution. Key Responsibilities & Operating Principles Build & Refine Core Platform Foundations: Drive ...

Senior Engineer, Trading Product Engineering

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 ...

Maximo Database Administrator

Location
East Midlands, England, United Kingdom
database migration activities. Administer, maintain, and tune IBM DB2 database environments. Design and implement robust backup, recovery, and disaster recovery strategies. Optimise database performance across IBM Maximo Application Suite (MAS) environments. Ensure database security, governance, and compliance requirements are met. Refactor and convert Oracle PL/SQL stored procedures … compatibility. Monitor database health, troubleshoot performance issues, and implement improvements. Work closely with infrastructure, application, and development teams to deliver database solutions. Essential Skills & Experience Proven experience delivering Oracle-to-DB2 migrations. Strong hands-on experience with DB2 administration, configuration, and performance tuning. Experience developing and implementing backup ...

Mainframe Datacom Engineer - IBM Z

Location
United Kingdom
desirable. Key Responsibilities Administer and support Broadcom Datacom/CA Datacom databases on z/OS. Perform database provisioning, configuration, monitoring, capacity planning and performance tuning. Undertake backup, recovery, reorganisation and database maintenance using Datacom utilities. Monitor availability and proactively resolve database and application performance issues. Support incident …/ISPF, SDSF, CICS, VSAM and RACF. Support COBOL-based applications and troubleshoot database/application issues. Assist with application releases, technical design and performance optimisation. Participate in disaster recovery and business continuity exercises. Contribute to mainframe modernisation, automation, API enablement, CI/CD and DevOps initiatives. Identify opportunities ...

Mainframe Datacom Engineer - IBM Z

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Reading, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
desirable. Key Responsibilities Administer and support Broadcom Datacom/CA Datacom databases on z/OS. Perform database provisioning, configuration, monitoring, capacity planning and performance tuning. Undertake backup, recovery, reorganisation and database maintenance using Datacom utilities. Monitor availability and proactively resolve database and application performance issues. Support incident … ISPF, SDSF, CICS, VSAM and RACF . Support COBOL-based applications and troubleshoot database/application issues. Assist with application releases, technical design and performance optimisation. Participate in disaster recovery and business continuity exercises. Contribute to mainframe modernisation, automation, API enablement, CI/CD and DevOps initiatives. Identify opportunities ...

Lead Data Analytics Engineer

Location
Slough, England, United Kingdom
testing. Detailed Job Description Key Responsibilities Build and maintain scalable modular data models using dbt inside Snowflake. Transition complex, unoptimised Teradata views into high-performance Snowflake tables. Implement data quality testing, version control (Git), and CI/CD pipelines for analytics code. Manage Snowflake warehouse optimization, access controls (ABAC … query performance tuning. Technical Requirements Core Platforms: Expert Snowflake knowledge and advanced dbt (Core/Cloud) experience. Modeling Concepts: Semantic Modeling, Dimensional Modeling (Kimball), Business/Logical/Physical Modelling. Skills: Software engineering mindset applied to SQL; git workflows, and automated testing. #J-18808-Ljbffr ...

Senior Lead Software Engineer - LLM Ops Platform Reliability

Hiring Organisation
JP Morgan Chase
Location
Glasgow, UK
Employment Type
Full-time
site reliability practices to cutting-edge AI platforms. You'll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you'll find meaningful impact and growth here. As a Senior … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the large language model inference platform end to end. You will operate large language model serving stacks in production at scale ...

Senior Lead Software Engineer - LLM Ops Platform Reliability

Hiring Organisation
Hackajob Ltd
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
site reliability practices to cutting-edge AI platforms. You'll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you'll find meaningful impact and growth here. As a Senior … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the large language model inference platform end to end. You will operate large language model serving stacks in production at scale ...