1 to 25 of 26 Design Patterns Jobs in the City of London

Software Engineering Manager (UCX) (Web Frontend)

Hiring Organisation
Hargreaves Lansdown
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
exciting opportunity to design, architect and build a modern frontend from scratch using React, AWS technologies and latest design patterns including micro front ends, module federation and industry best practices to modernize and transform our savings and investment platform. The UCX team consolidates the efforts … engineering teams . High proficiency in React and AWS cloud technology stack is essential , with a strong grasp of front-end design patterns and best practices. Proven hands-on software engineering background across modern web technologies, including JavaScript, HTML, CSS, and React-based frameworks . Strong understanding ...

Software Engineering Manager (UCX) (Mobile)

Hiring Organisation
Hargreaves Lansdown
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
opportunity to design, architect and build a modern cross platform mobile application from scratch using React Native and latest design patterns and industry best practices to modernize and transform our savings and investment platform. The UCX team consolidates the efforts of the whole organisation, transforming … engineering teams . High proficiency in cross platform development in React Native is essential , with a strong grasp of front-end design patterns and best practices in mobile SDLC. Proven experience of REST/GraphQL API integration with mobile applications Solid understanding of mobile application fundamentals ...

Senior Eclipse Desktop Engineer

Hiring Organisation
L&T Technology Services
Location
City of London, London, United Kingdom
build rich desktop UIs with Eclipse RCP (perspectives, views, editors, commands/handlers, extension points) using SWT/JFace and established UI/UX patterns (MVP/MVC, event‐driven design). Responsibilities Implement OSGi modular architectures (bundles, services, dependency management), ensuring clean isolation between components … Ensure UI responsiveness & performance for large datasets: job scheduling, progress reporting, cancellation, virtualized tables/viewers, and efficient rendering. Apply software design patterns and domain‐driven design to keep code modular, testable, and maintainable. Collaborate with product and UX to translate scientific/geology workflows ...

10573497 - Security Architect - London

Hiring Organisation
Stott & May Professional Search Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700 per day
with potential for extension) Start Date: 5th March 2026 Type: Contract Rate: Market Rates Role Description As a Security Architecture Reviewer, you will design and implement security solutions that align with organizational goals and regulatory requirements. You will be a key player in ensuring security is 'baked … recommending remedial actions, and leading the adoption of emerging security technologies to keep the organization ahead of modern threats. Key Responsibilities Design Patterns: Develop Security Architecture Design Patterns and Standards in line with group requirements and industry best practices. Control Framework: Assist ...

Senior Software Engineer: Back-end or Full Stack

Hiring Organisation
Onda
Location
City of London, London, United Kingdom
scalable systems with robust and maintainable code. Competence in other languages is also important – with Rust and JavaScript being particularly advantageous. Design Patterns: Familiarity with common design patterns (e.g., MVC, Observer, Factory) to create maintainable and modular software. Must have a right to work ...

Salesforce Cloud architect

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
maintain technical documentation that covers functional use cases and the technical implementation to support the use cases Experience in object-oriented design patterns and data modelling Proficiency in the following technical artifacts for current and future states Data Model ERD System Landscape Integration Orchestration Design Process Flows Sequence Diagrams etc Strong understanding of on premise and cloud architectural design patterns Foundational understanding of mobile application development and design principles Skills Mandatory Skills : Aura, Salesforce Apex, Salesforce Lightning Web Components (LWC), Salesforce Visual Force Randstad Technologies ...

Salesforce Business Analyst

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £80000/annum
maintain technical documentation that covers functional use cases and the technical implementation to support the use cases Experience in object-oriented design patterns and data modelling Proficiency in the following technical artifacts for current and future states Data Model ERD System Landscape Integration Orchestration Design Process Flows Sequence Diagrams etc Strong understanding of on premise and cloud architectural design patterns Foundational understanding of mobile application development and design principles Skills Mandatory Skills : Aura, Salesforce Apex, Salesforce Lightning Web Components (LWC), Salesforce Visual Force Randstad Technologies ...

Lead React Native Engineer / Engineering manager

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700 per day + Outside IR35
best practices to transform our savings and investment platform. Responsibilities Set technical direction: Define & maintain Mobile and Front end/Web software architecture and patterns, engineering standards and the 'right way' to build greenfield, state of the art web and mobile applications. Own a technical 'opinionated' architecture for front … Extensive Mobile software engineering and significant experience of architecture Deep understanding of Front End/Web and Mobile architecture approaches and design patterns including micro front ends, module federation, stateless, SPA and others Strong API/integration experience: REST/GraphQL, auth flows, contract design ...

Salesforce Technical Lead (SC Cleared)

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£675 - £775/day Inside IR35 (Negotiable rate)
technical aspects, including communication strategies contributing to sprint demos. Own solution integrity, ensuring scalability, performance, security, and best practice design patterns Conduct code reviews and enforce development standards across your team(s) Provide guidance on integration patterns and approaches, often in collaboration with integration technical leads. … Proven experience leading technical delivery on enterprise Salesforce programmes Deep expertise in Apex, LWC, integration architecture, and data modelling Strong understanding of Salesforce development patterns and governor limits Experience with CI/CD pipelines and DevOps tooling (e.g., Copado, Gearset, Git-based workflows) Experience integrating Salesforce with ERP, data ...

CRM/CPQ Junior Administrator - Revenue Cloud

Hiring Organisation
Divalentinecalver Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Responsibilities: Solution Architecture: Define and own the end-to-end technical architecture for Revenue Cloud implementation Design scalable data models, integration patterns, and system interfaces Establish architectural standards, design patterns, and best practices Review and approve all major technical decisions and design … integration architecture between Revenue Cloud and enterprise systems (Netsuite, MDM, Workflow ingestion) Define API contracts, data flows, and error handling strategies Ensure integration patterns support scalability and reliability requirements Collaborate with IT and Integration teams on cross-system design decisions. Governance & Standards: Establish technical governance framework ...

Artificial Intelligence Engineer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
engineers and external partners to fill capability gaps and accelerate delivery. Acting as an SME in the Foundry space , advising on design patterns, feasibility and technical constraints. Technical Ownership Producing clear solution design , documentation and reusable patterns. Helping shape IP, frameworks and technical assets that … orchestration Ability to design and implement end‐to‐end AI workflows and agents. AI Expertise Solid understanding of modern AI concepts and patterns developed over the last few years. Experience in LLM orchestration, agent frameworks, prompt engineering and real‐world delivery. An “eye for making it work ...

Junior Software Engineer

Hiring Organisation
Metfolio
Location
City of London, London, United Kingdom
MERN stack and associating technologies Experience using Cursor and AI IDEs Understanding the fully synchronous behaviour of MERN Understanding of MVC design patterns Experience in front-end technologies, such as Java, Dart and potentially Swift Knowledge of object-oriented programming Strong ability to write custom APIs linking … focus on mobile applications Understanding accessibility and security compliance Strong knowledge of the common or web server exploits and their solutions Understanding fundamental design principles behind a scalable application User authentication and authorization between multiple systems, servers, and environments Integration of multiple data sources and databases into ...

Senior Front Office Developer - Trading

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
programming techniques so experience in this area is essential . As a Senior Developer, youll not only code but also take on key design responsibilities, shaping impactful projects. You'll mentor junior members of the team, driving innovation in a fast-paced, high-stakes environment. If youre ready … ideally in pricing or risk-related applications. Not just a coder, but someone wh o also focuses on applying best practices, design patterns and principles to develop scalable, maintain able and high-quality code. Someone who enjoys maths/logic problems and challenges Familiarity with electronic trading ...

Solutions Architect

Hiring Organisation
Xcede
Location
City of London, London, United Kingdom
scale. Key responsibilities: • Contribute to enterprise technology resilience strategy across application, infrastructure, security, data and operations • Define and embed reusable resilience design patterns and reference architectures • Turn production incident data and failure analysis into architectural improvements • Drive adoption of SRE practices including SLOs, SLIs and error budgets ...

Senior / Lead Data Engineer (AI-Focused)

Hiring Organisation
PaymentGenes
Location
City of London, London, United Kingdom
scalability, governance, and AI enablement across the business. 🌐 What You’ll Do 🏗 Data Platform Architecture & Strategy Define and evolve the data architecture roadmap Design scalable ELT/ETL frameworks using DBT and cloud data warehouses Establish orchestration standards (Dagster or equivalent) Drive decisions across batch, streaming, and real … Dagster preferred) Cloud data warehouses (Snowflake, BigQuery, Redshift, etc.) Data modelling for analytics and AI use cases API integrations and ingestion design patterns AI/ML Infrastructure Feature engineering architecture ML pipeline and deployment workflows Experience supporting production ML systems Familiarity with embeddings, vector databases, LLM orchestration ...

Smart Contract Engineer

Hiring Organisation
Plexus Resource Solutions Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
great opportunity to join a fast growing startup building core infrastructure for decentralised finance. They are looking for a solidity engineer to design and ship secure, production grade smart contracts that will power high value financial products like … stablecoins, liquidity infrastructure, and DeFi protocols. Role: Design, develop, and maintain advanced Solidity smart contracts Contribute to protocol architecture, design patterns, and technical direction Write unit, integration, and fuzz tests using Foundry or similar frameworks Optimise and debug smart contracts for gas efficiency,performance ...

Lead Data Architect

Hiring Organisation
Brickendon Consulting
Location
City of London, London, United Kingdom
Rolls Royce. We are currently seeking a Lead Data Architect for one of our clients. ✅ Work location: London ✅ Work setting: hybrid Key Responsibilities Design the UDM across the four domains (Customers, Applications, Assessments, Cases), aligning with the DSFS data model and existing Netezza structures. Produce the EDW logical … Kimball methodology) and enterprise data modelling. Experience with Databricks (Unity Catalog, Delta Lake) or Snowflake on AWS. Knowledge of Semantic Layer design patterns: pre-computed aggregations, business-facing views, Tableau integration. Experience migrating from legacy EDW platforms (Netezza, Teradata, Oracle) to cloud-native architectures. ...

Senior Software Engineer C# .Net - Hedge Fund

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent
strategy teams and build low-latency backend components and APIs with C# .Net, plus occasional frontend work in React. What you'll do: Design and develop real-time trading and pricing systems Lead greenfield feature builds with significant business impact Build backend services, APIs and trading engine components … Oracle) You're comfortable with JavaScript/React You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms You are collaborative with excellent communication and stakeholder management skills You are degree educated in Computer Science or similar technical discipline What ...

Senior Network Engineer

Hiring Organisation
Block MB
Location
City of London, London, United Kingdom
dive analysis across LAN, WAN and data centre environments. Familiarity with infrastructure hardware (e.g., enterprise switches/routers) and resilient network design patterns prioritising high throughput and low-latency delivery. Solid foundation in network security concepts and configuration management to enforce secure practices. Excellent communication skills with ...

Data Engineer

Hiring Organisation
Lorien
Location
City of London, London, United Kingdom
within the UK financial sector is embarking on a major data transformation programme. They are looking for an experienced Data Engineer to help design and deliver a modern, cloud‐first data platform that will underpin some of the organisation’s most critical functions. Responsibilities: Design, build …/CD practices using industry-standard tools (e.g., GitHub Actions, Azure DevOps). Strong understanding of data architecture principles and cloud-native design patterns. Essential Criteria Demonstrated ability to lead technical delivery, mentor engineering teams and collaborate with stakeholders to ensure alignment between data solutions and business strategy. ...

Senior Software Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
stack includes: The Engine: Expert-level C# and .NET Core mastery. Architecture: Deep understanding of SOA (Service Oriented Architecture) and complex Object-Oriented design patterns. System Dynamics: Specialized knowledge of concurrency, asynchrony, and parallelism —essential for real-time transactional processing. Data & Web: High proficiency in SQL Server … Desired Innovations Our client is actively modernizing. Exposure to the following is highly valued: Cloud & Orchestration: Azure ecosystems, Docker, and Kubernetes (AKS) . Messaging Patterns: Enterprise systems like Azure Service Bus or NServiceBus. Next-Gen Tech: Experience with Blockchain development or Cryptographic concepts is a significant plus. Modern ...

Senior Java Developer (Low-Latency Payments Systems)

Hiring Organisation
RE Partners
Location
City of London, London, United Kingdom
strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput backend systems using Core Java and SpringBoot. Build and maintain RESTful APIs and microservices that power secure …/or Kubernetes. Strong cloud experience with AWS services such as ECS, EKS, Lambda, S3, etc. Solid understanding of MongoDB and NoSQL design patterns. Prior experience in Payments Processing, financial services, or banking systems. Strong communication skills and a bias toward action and opinionated design decisions. ...

GenAI Architect

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
with strategic business acumen, serving as both a technical authority and a trusted advisor to clients What you’ll do Multi-Agent Architecture Patterns : Define and govern reference architecture for multi-agent systems, covering hierarchical, peer-to-peer, and sequential (ReAct) orchestration models. Guide teams on pattern selection based … knowledge graphs, and episodic/audit memory. Ensure coherent retrieval strategies across layers. Retrieval-Augmented Generation (RAG) and CAG (Cache Augmented) Architecture : Define architectural patterns for end-to-end RAG pipelines, including chunking, embedding, vector search (e.g., Azure Cognitive Search, pgvector), and reranking. Ensure designs include standards for lineage ...

Python Software Engineer

Hiring Organisation
Aubay UK
Location
City of London, London, United Kingdom
PySpark and DataFrame-based data processing. Solid understanding of SQL. Hands-on experience with Azure infrastructure. Good understanding of Containers, Microservices, and Functional design patterns. Experience working with Agile delivery processes. Experience with Terraform for infrastructure-as-code. Experience with Unit Testing, preferably with PyTest. Desired Skills … requirements, blockers, and progress. Abstract and refactor existing code from product teams into a shared, reusable Python library leveraging PySpark/DataFrames. Design and build Python-based Azure Functions to support microservice development needs. Build and maintain microservices and internal libraries that address common requirements across the Geneva ...

Senior Front Office Developer - Trading

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence is critical. Youll design and build ultra-low latency pricing and risk systems that directly power our global trading operations. If you thrive in performance-critical environments and want your … trading. Build and enhance components within a low latency, high-throughput trading architecture. Apply advanced concurrency, memory management and performance tuning techniques. System Design & Ownership Take responsibility for designing scalable, resilient and maintainable systems. Contribute to architectural decisions across the trading and risk platform. Build tooling to improve ...