1 to 25 of 39 Data Structures Jobs in the City of London

Role – Technology Lead Technology – Snowflake, SQL Server, PostgreSQL, Data Warehousing, Data Lake, Medallion, Data Vault, Data Fabric, Semantic modelling Location – London, UK Job Description We are seeking an experienced Data Modeler who can analyse and understand the existing customer data and analytics models … Server, and design efficient data models for Snowflake. This individual will work closely with multiple Business Analysts to gather requirements and translate them into optimized data structures, ensuring scalability and compliance with industry standards. A strong understanding of Insurance domain concepts—including Specialized Insurance, London Market ...

Data Engineer - £350PD - Remote Required Technical Skills Data Pipeline & ETL Design, build, and maintain robust ETL/ELT pipelines for structured and unstructured data Hands-on experience with AWS Glue and AWS Step Functions Implementation of data validation, data quality frameworks, and reconciliation checks Strong … error handling, monitoring, and retry strategies in production pipelines Experience with incremental data processing patterns (CDC, watermarking, upserts) AWS Data Services Amazon S3: data lake architectures, partitioning strategies, lifecycle policies DynamoDB: data modeling, secondary indexes, streams, and performance optimization Amazon Redshift: foundational querying, integrations, and performance ...

Data Production & Analysis Manager (Remote – UK Based) 💼 Full-time | Competitive salary: up to £80,000 DOE 🏡 100% Remote (UK-based only) 🌱 Growing data & technology organisation Contract type : Permanent We are recruiting a Data Production & Analysis Manager for a rapidly expanding data solutions provider working with some … recently undergone significant growth through multiple acquisitions and offers a stable, long-term environment where individuals can take real ownership of complex, high-impact data operations. About 60% of the job is hands-on data processing, 25% analysis, and a smaller share of client-facing work This ...

architect the next wave of data solutions in the AdTech and MarTech sectors, we're on the lookout for a Senior Data Engineer—a maestro in data architecture and pipeline design. If you're a seasoned expert, eager to lead, innovate, and craft state … data solutions, we're keen to embark on this journey with you. Job Responsibilities Develop, test, and maintain data architectures in Snowflake using Python, SQL, and modern data orchestration frameworks to deliver on business requirements. Uphold data quality standards, implementing tools and frameworks to detect ...

Hong Kong or Paris and will require close collaboration across Risk and Finance teams. We are looking for a Business Analyst with strong data analysis experience to support the implementation, including sourcing and querying data, establishing end-to-end data lineage, identifying and fixing data issues … analysis to define clear and robust business and regulatory requirements. Experience/Skill set: Knowledge of Wholesale Banking business and Wholesale Credit Risk Strong data analysis skills Understanding of the regulatory framework globally A thorough understanding of the purpose, values, culture and fundamentals of Global Transformation Very strong knowledge ...

Title: Data Scientist Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role Purpose At Travelex, data is at the heart of every decision we make. We rely on advanced analytics and deep insights to power our products, optimise our processes, and uncover … opportunities. We are seeking an experienced Data Scientist with strong statistical expertise, analytical curiosity, and creative problem-solving skills to join our growing team. In this role, you will work closely with cross-functional teams to extract meaning from complex data, design predictive models, and translate insights into ...

Data Engineer - 14-Week Contract (Outside IR35) Likely to Extend Start Date: 12th January Rate: £350 per day Location: Remote (UK-based) Interview: Immediate - Offer before Christmas We are seeking an experienced Data Engineer to join a 14-week project focused on building robust data pipelines … integrating complex data sources. This is an outside IR35 engagement, offering flexibility and autonomy. Key Responsibilities Design and implement ETL/ELT pipelines with strong error handling and retry logic. Develop incremental data processing patterns for large-scale datasets. Work with AWS services including Glue, Step Functions ...

days per week) Location: Central London About the Role and Client A leading law and professional services organisation is looking for a technically proficient Data Analyst to join the IT Department within the Strategy & Architecture Team. This role will have a strong focus on API design and integrations between … systems. This role is critical in enabling data-driven decision-making and ensuring seamless data exchange across internal systems and external platforms. Key Responsibilities Analyse and interpret complex datasets to support IT operations and strategic initiatives. Design, document, and maintain APIs that facilitate secure and efficient integration ...

General Ledger, Asset Management & Subledger Accounting Strong experience in implementing Oracle Cloud Record to Report and Asset Management solutions. Experience with design of enterprise structures and chart of accounts and local reporting Understanding of finance data structures, data migration and integration. Understanding of finance processes … influence of user experience-based design e.g. Personas, user journeys and how this can be used to augment a solution Experience with functional data conversion, transformation and reconciliation An understanding of the functional, application and technical implementation approach elements of an Oracle Cloud ERP programme What ...

memory management, SIMD, and hardware/software optimization ("close to the metal"). Concurrency: Proficiency in multi-threading, lock-free architectures, and distributed systems. Data structures and algorithms: Open-addressing, ring buffers, heaps, price-time priority, spinlocks. The Challenge You will engineer high-throughput, low-latency data … roles, high GPA) or competitive programming background (IOI, ICPC). Assessment Criteria : Candidates will be tested on algorithmic speed, coding velocity, systems engineering, concurrency, data structures and algorithms and debugging. Exclusions: High-level application developers (Java/Python) or vibecoders. ...

About PRODA At PRODA (www.proda.ai) we are building software to unlock the full potential of Real Estate Data no matter the asset class, language, or country of origin. Our solution leverages the latest technologies to automatically capture, standardise and quality check Real Estate data into a single, clean … source of truth. The goal is to empower real estate professionals to quickly gain actionable insights from their data and to enable the effective use of software. Despite being the biggest asset class in the world, the commercial real estate industry relies on excel & PDF “Rent Roll” documents ...

operation of our SAP SuccessFactors platform. The role supports the effective delivery of HR systems and processes by ensuring accurate data, reliable system performance, and a consistent user experience across the employee lifecycle. This position plays a key role in supporting key modules including Employee Central, Performance & Goals, Recruitment … Learning, and People Stories. It also contributes to onboarding new users—particularly during acquisitions—by configuring fit-for-purpose structures and enabling smooth transitions into our people systems. The role provides technical support for the Unily platform in collaboration with IT and Internal Communications, and manages the HRIS helpdesk ...

make AI useful in production. In the immediate future, your time will be split between crafting complex AI processing architectures (40%) and hands-on data/backend engineering (40%), with the rest spent doing whatever is needed to ship. As we mature, your focus will shift toward closing … loop: using real-user data to optimize the platform via online evaluation and targeted, data-driven models. What You’ll Do Architect & Engineer AI Systems: You won’t just call an API; you will build robust processing architectures that leverage off-the-shelf LLMs, RAG pipelines, and context ...

Team: OTC Derivatives Data provides consistent and reliable curve and volatility data for over-the-counter derivatives in support of trading, research, valuation and independent price verification. Asset class coverage includes foreign exchange, interest rate and equity derivatives. As Full-stack Java/Clojure developer working within … Derivatives Data you’ll be working closely with our product and data specialists across all asset classes, extending our platform. As well as delivering software of high quality, you’ll work towards the team’s goals of high test-coverage, automated, frequent deployment and regular cycles of code ...

CAMPAIGN DATA ANALYST UP TO £50,000 LONDON - HYBRID - 2X A WEEK Please note: you must have full UK right to work and be familiar with the UK education system. ABOUT THE BUSINESS This purpose-led brand and social impact agency has over 20 years’ experience delivering insight-driven … Ireland education systems, partnering with schools and delivering education-focused initiatives at scale. The agency operates with a strong emphasis on data quality, accuracy, and insight-led storytelling. Data plays a central role in shaping campaigns, forecasts, and strategic decisions, making this a business-critical hire. THE TEAM ...

MARKETING DATA ANALYST UP TO £50,000 LONDON – HYBRID (2X PER WEEK IN OFFICE) *Please note, you must be a UK resident and hold full right to work* ABOUT THE BUSINESS This is a brand and social impact agency with over 20 years’ experience helping organisations connect meaningfully with … business focuses on deep engagement with the UK and Ireland education systems, working in partnership with schools and delivering education-led campaigns at scale. Data sits at the heart of how the agency operates. There is a strong emphasis on data quality, accuracy, and insight-led storytelling, with ...

optimise business processes. Build out a robust GenAI application technology stack, from experimentation through to production. Develop, maintain and improve existing ML pipelines, data transformation workflows and MLOps practices. Create serverless data/ML pipelines in cloud environments (Azure preferred). Work closely with architects, senior developers, product … contribute to sprint planning, and provide accurate estimates for delivery. Translate business problems into well-structured ML and automation solutions using data-led insight. Collaborate with wider technology teams to share knowledge, improve processes, and produce training/documentation. The Person Were looking for someone who combines strong engineering ...

particular: Write clean, maintainable, and well-tested code using Kotlin, Java, TypeScript Work across the full stack — primarily on backend services, APIs, and data flows, with the option to contribute to frontend web applications as needed Join a collaborative Agile team involved in all phases of development — from ideation … systems integrate Exposure to cloud platforms like AWS, GCP, or Azure Familiarity with SQL or NoSQL databases Knowledge of computer science fundamentals (data structures, algorithms, system design) Writing clean, maintainable code and an interest in CI/CD , testing , or DevOps practices Strong communication and teamwork skills ...

intersection of AI and life sciences, with significant funding. They build multi-modal foundation models that span medical imaging, clinical, genetic, and omics data, for high-precision inference in late-stage clinical drug trials. They are scaling fast and on a mission to revolutionise therapeutic development, with cutting-edge … data analytics. The commercial potential of this work is phenomenal, as is its scope for its impact on society. They are looking to hire several experienced Research Software Engineers to partner closely with the Research team (currently ~12), playing a pivotal role in developing and optimising their next-generation ...

scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. What will I be doing? Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality … features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer-focused solutions. Work with modern technologies such as Python, Django, Cloud Firestore, BigQuery, and Elasticsearch to deliver scalable, reliable ...

research to enhance optimisation frameworks and algorithm performance. Required Experience Strong foundation in mathematics, optimisation, or operations research. Demonstrated Python engineering skills (OOP, algorithms, data structures). Ability to transform theoretical models into practical solutions. Strong communication and teamwork skills. Preferred Experience MSc/PhD in a quantitative ...

responsible for architecting the systems that underpin the entire customer lifecycle, ensuring the go-to-market tech stack scales effectively while maintaining strong data quality, governance, and usability throughout. For someone motivated by ownership, strategic influence, and long-term progression, this role offers genuine scope to shape … reliable tooling. Working closely with senior stakeholders across Revenue Operations, Marketing, Sales, and Customer Success, you’ll play a critical role in ensuring systems, data, and processes support both current performance and future growth. KEY RESPONSIBILITIES CRM Ownership & Architecture Own the CRM platform as the central revenue system ...

C# or Python, with advanced SQL and database design expertise. Hands-on experience with AWS, Snowflake, and modern software architecture. Solid grasp of data structures, concurrency, and memory management. Experience developing responsive, performant UIs using React, Angular, or Vue.js; familiarity with PowerBI or other BI tools ...

lead the design and delivery of next-generation digital solutions. This is an opportunity to shape greenfield projects from the ground up - architecting scalable, data-driven systems that empower venues to deliver seamless guest experiences and drive long-term innovation. What will I be doing? Lead the technical vision … Elasticsearch. Mentor and guide engineers at all levels, fostering a culture of technical excellence and continuous improvement. Collaborate with cross-functional teams - including product, data, and design - to deliver innovative solutions that directly impact customer success. Evaluate and implement emerging technologies that enhance system performance and developer productivity. Take ...

handling everything from trade intake and real time position tracking to PnL calculation, inventory control and internal routing logic. The platform processes heavy market data flows and fast changing state across both live and historical workloads, so efficient memory management, intelligent data structures and tight control … environment. We are looking for engineers who enjoy solving problems at scale and want to design robust components that can ingest, compute and distribute data across a distributed Linux estate. You will be involved in building services that must respond predictably under load, propagate risk metrics across internal systems ...