26 to 39 of 39 Performance Tuning Jobs in Central London

C++ Software Engineer

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
London or has the right to work in London. You will be part of a highly collaborative, low-ego engineering culture that prioritises performance, innovation, and impact. Working alongside some of the brightest minds in quantitative trading and systems engineering, you will build and optimise ultra-low latency, high … throughput systems that operate at scale. Key Responsibilities: Design and implement high-performance C++ systems for low-latency trading Optimise existing code for speed and reliability under production workloads Collaborate closely with traders, researchers, and fellow engineers to develop scalable infrastructure Work across the full software lifecycle ...

Software Engineer

Hiring Organisation
Albert Bow
Location
City of London, London, United Kingdom
business APIs used globally. This role is ideal for someone who thrives in fast-paced fintech environments and is passionate about clean architecture, system performance, and secure engineering practices. Key Responsibilities Design and develop backend services and APIs with a focus on performance, maintainability, and security. Deliver … experience (TypeScript/Javascript). Professional Golang development experience. Strong GraphQL experience, including schemas, resolvers, and high-volume queries. Deep knowledge of PostgreSQL, including performance tuning and relational design. Hands-on experience with Redis for caching, pub/sub, or distributed systems. Fintech experience is a MUST — ideally ...

C Developer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
Software Engineer – Low‐Latency Trading Contract - OUTSIDE IR35 Rate - Dependent on skills London - Hybrid working 50% in office. You'll be joining a high‐performance trading technology firm. Helping to building ultra‐low‐latency systems powering global electronic markets. Working alongside world‐class engineers solving complex challenges across C++ … Linux, networking, and hardware‐accelerated trading pipelines. What You'll Do Build and optimise high‐performance, low‐latency C++ applications Develop real‐time systems interacting directly with global exchanges Work closely with FPGA, network, and infrastructure teams Improve latency, throughput, and reliability across mission‐critical systems Contribute to performance ...

Oracle Systems Admin Manager

Hiring Organisation
Lorien
Location
Kensington And Chelsea, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 Daily
Case Management for statutory absences Local Authority experience (essential) Role Overview: RBKC is seeking an experienced Oracle Systems Admin Manager to lead the governance, performance, stability, and operational management of the Oracle Fusion platform. The role will ensure high system availability, service continuity, security, and adherence to ITIL best … Responsibilities: Lead strategic governance, configuration, and optimisation of Oracle Fusion Oversee incident, problem, change, and release management ensuring SLA compliance Drive proactive monitoring, performance tuning, and system resilience Manage external managed service providers and supplier performance Provide senior stakeholder engagement, reporting, and escalation management Ensure high-quality ...

Backend Support Engineer

Hiring Organisation
Valiant Finance
Location
City of London, London, United Kingdom
Proven experience in a technical support, site reliability, or escalations engineering role. Proven experience integrating with multiple external APIs. Experience with database design and performance tuning, particularly with PostgreSQL. Experience designing and maintaining infrastructure with AWS, GCP, or Heroku. Experience with testing frameworks like Rspec. Experience with high ...

Oracle Technical Consultant

Hiring Organisation
NU Concept Solutions Ltd
Location
Central London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £500 to £550 per day
HRTechnical experience Must have worked on Core HR, UK Payroll etc. Hands-on expertise on Integrations, Reports, Fast Formulae, SQL/PLSQL. Experience in performance tuning Custom Form development Fixing issues in existing solution including workflows Job Type: Contract Location: FULLY REMOTE Daily Rate : 500-550GBP (inside ...

Back End Developer

Hiring Organisation
NearTech Search
Location
City of London, London, United Kingdom
rollout • Strengthen testing strategy across unit and integration layers • Improve data and integration workflows with observability and resilience • Optimise Postgres (RDS) and MongoDB performance, modelling and migrations The role requires... • Strong commercial experience with Node.js and TypeScript • Deep API design expertise, including versioning and backwards compatibility • Solid Postgres knowledge … querying, modelling and performance tuning • Clear communication of trade-offs and pragmatic architectural decisions • Independent delivery of reliable, production-grade systems This Senior Backend Engineer (Full Stack, backend-leaning) role offers genuine ownership and influence in a business where engineering quality directly impacts customer trust. To apply please ...

Alliance ProjectWise Lead

Hiring Organisation
BAM UK & Ireland
Location
City of London, London, United Kingdom
Employment Type
Permanent
Implement and maintain ProjectWise Managed Workspaces (Configuration Settings Blocks, imports, dynamic frameworks), align MicroStation/verticals configurations per contract, and troubleshoot workspace resolution issues. Performance & file transfer optimization: Configure/maintain Caching Servers and storage areas; tune Delta File Transfer, compression, streaming, and client caching for distributed teams. Standards … resolve managed workspace resolution/pathing issues. Security design: Simplify permission models, standardize role templates, and prevent inheritance conflicts across multiple client projects. Performance tuning: Deploy caching/storage areas, enable/tune DFT, compression, and streaming, and set client caching policies. Governance & documentation: Map ISO 19650 states ...

Data Engineer

Hiring Organisation
Opus Recruitment Solutions
Location
City of London, London, United Kingdom
frameworks to support additional use cases and improved performance. Create, manage, and optimise Databricks Workflows , including orchestration logic and operational behaviours. Carry out testing, performance tuning, and provide day‐to‐day operational support for data pipelines. Work closely with Solution Designers/Architects and Configuration Analysts to ensure ...

Principal Embedded Software Engineer

Hiring Organisation
Oakmont Consulting
Location
City of London, London, United Kingdom
prototyping through certification, manufacturing and long-term maintenance. Sensor & Audio Integration - Experience integrating microphones, cameras and other sensors, including driver development and real-world performance tuning. Hardware Debugging Skills - Confident reading schematics, debugging hardware with oscilloscopes or logic analysers and diagnosing cross-layer issues. Systems Thinking - Ability to design ...

Managing Consultant - Endur Technical

Hiring Organisation
capSpire
Location
City of London, London, United Kingdom
interoperability. Oracle and MS SQL Server Database Management: Strong understanding of Oracle and MS SQL Server databases, including database design, administration, optimisation, and performance tuning. .NET C# and/or Java Development: Proficiency in .NET C# and Java development for building custom applications, modules, and integrations within the Endur … Deep understanding of various functional areas and relevant modules of Endur. Experience in conducting comprehensive testing and quality assurance activities to validate the functionality, performance, and reliability of Endur solutions. Worked as part of a cross-cultural/geographical team including flexibility to support multiple time zones when necessary. ...

Java Software Engineer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
City of London, London, United Kingdom
United Kingdom Rate: £550 per day Contract type: Contract We are seeking a Senior Java Developer to join a modern engineering team building high-performance, cloud-native services. You will take ownership of backend design and delivery, mentor engineers, and help elevate engineering standards. A key focus of this … effectively. Key Responsibilities Design, build, and optimise microservices and APIs using Java 21 . Drive best practice in code quality, testing, secure coding, and performance tuning. Build and integrate with NoSQL data stores and event-driven components where appropriate. Deliver cloud solutions on Azure and/or AWS , including ...

Enterprise Data Architect

Hiring Organisation
Options Group
Location
City of London, London, United Kingdom
write proof-of-concept code, troubleshoot issues, and unblock delivery teams. Advise delivery teams on data architecture implications of design decisions, including feasibility, cost, performance, and maintainability. Essential Qualifications Architecture Deep, demonstrable experience defining, developing, and evolving data architectures in complex, multi-domain organisations. Proven hands-on expertise … DDL. Practical experience with at least one major cloud data platform (Azure Synapse/Fabric, Snowflake, Databricks, BigQuery, AWS Redshift) including cost and performance tuning. Desirable Experience Experience in energy trading, commodities, or financial services data environments (or Big Tech Familiarity with data governance tooling (e.g., Collibra, Purview, Alation ...

RPG Lead +Synon

Hiring Organisation
Quinnox Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
deep hands-on RPG development with technical leadership, solution ownership, and governance of mission-critical core banking systems. The Tech Lead will ensure stability, performance, security, and regulatory compliance of core banking applications while mentoring developers and partnering closely with business, vendor, and operations teams. Key Responsibilities Technical Leadership … development practices, and system governance for RPG and IBM i applications. Review and approve technical designs, RPG code, and database changes. Ensure solutions meet performance, availability, security, and audit requirements. Lead root cause analysis for complex production issues and ensure long-term fixes. Development & Delivery Act as a hands ...