5 of 5 Permanent Performance Tuning Jobs in Northern Ireland

This role demands a proactive individual who can work collaboratively in a fast-paced environment to deliver innovative solutions. Key Responsibilities: Implement robust, high-performance, and scalable solutions for Citi's Equity Derivatives Risk management platform using C# (C++ is a bonus) Collaborate with traders, quants, and analysts to … and ensure the software meets business needs Integrate new features and functionalities into existing risk infrastructure Optimize applications for maximum speed and scalability Conduct performance tuning and debugging to improve application performance and reliability Write clean, maintainable, and efficient code. Conduct code reviews and provide constructive feedback … which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) A discretional annual performance related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Access to More ❯

create flowcharts for those SPs. Tune them to be most efficient they can be. Rewrite parts of it as required. Deep knowledge of indexing, performance tuning. Deep knowledge of ETL processes. Hands-on experience with database performance tuning, indexing, and partitioning. Excellent understanding of data modelling concepts More ❯

Duration: ASAP – long term (12 months to start with extensions) We’re seeking Senior/Lead Java Engineers to join a team building high-performance systems that support trading across Equity Swaps, Delta One, and Prime Brokerage. While low-latency expertise is not essential, a deep command of Core … Java and algorithmic/data structure proficiency is critical to succeed in this complex and performance-sensitive environment. Key Responsibilities: Design and enhance trading engines for derivatives and structured financial products. Build scalable systems to support high-volume operations (100s of TBs of data). Refactor and decouple legacy … system designs. Lead database migrations from legacy systems (e.g., Sybase , DB2 ) to modern platforms. Required Skills: Strong Core Java expertise, with a focus on performance tuning and optimisation . Solid understanding of algorithms , data structures , and concurrent distributed environments . Proven experience with MongoDB and relational databases (e.g. More ❯

code optimisation for constrained environments. Key Responsibilities: Develop and optimise embedded firmware for BLE audio devices Work on LC3 codec integration and system-level performance tuning Collaborate with hardware, DSP, and software teams to deliver end-to-end solutions Debug and profile firmware on target systems using cross … compilation tools Key Technologies: Embedded C/C++ (performance-optimised code for low-resource systems) BLE/LC3 DSP (Digital Signal Processing fundamentals) Embedded Linux Cross-compilation (GCC toolchain) Python (desirable, not essential) Working Model: Ideally 5 days/week on-site in Belfast Flexible structure: WFH mornings or More ❯

code optimisation for constrained environments. Key Responsibilities: Develop and optimise embedded firmware for BLE audio devices Work on LC3 codec integration and system-level performance tuning Collaborate with hardware, DSP, and software teams to deliver end-to-end solutions Debug and profile firmware on target systems using cross … compilation tools Key Technologies: Embedded C/C++ (performance-optimised code for low-resource systems) BLE/LC3 DSP (Digital Signal Processing fundamentals) Embedded Linux Cross-compilation (GCC toolchain) Python (desirable, not essential) Working Model: Ideally 5 days/week on-site in Belfast Flexible structure: WFH mornings or More ❯