19 of 19 Design Patterns Jobs in the City of London

deliver microservices based architectures, enabling modular, resilient, and highly scalable platforms Define and govern API first strategies, including RESTful service design, integration patterns, and API lifecycle management Apply TOGAF principles and frameworks to drive structured architecture development and governance Translate business and technical requirements into robust, future … solution architecture, from strategic vision and CXO engagement through to hands on implementation Conduct architecture and solution assessments, including product selection, architectural patterns, and sourcing strategies Develop and maintain architecture roadmaps, providing strategic direction and technical leadership Mentor engineering and architecture teams, promoting best practices in modern software ...

Defence & National Security Role Summary Our client is seeking DV cleared Backend Developers to support high impact Defence and Security programmes. You will design, build and operate secure, cloud-native backend services that underpin mission-critical national systems. This is a hands on engineering role, focused on building … delivering production systems. Strong coding ability in Java, Python and/or JavaScript/TypeScript. Solid understanding of backend engineering fundamentals, design patterns and API design. Experience working in Agile teams (e.g. Scrum, Kanban). Strong communication skills and a collaborative mindset. Cloud & Engineering Experience building backend ...

Frameworks & Architecture: Spring Boot, gRPC/Protocol Buffers, integration/orchestration frameworks (e.g., Apache Camel, Spring Integration), and pipeline/adapter design patterns (retry, dead‐letter queues, error isolation). Cloud & Infrastructure: Cloud platforms (GCP, AWS), container orchestration (Kubernetes, Docker), and JVM tuning for containerized workloads. Observability … high‐availability environments. Data & Performance: Data modeling, SQL/NoSQL databases, caching strategies, and performance optimization in latency‐sensitive systems. Security: Enterprise security patterns; authentication protocols, mutual TLS, secrets management, and certificate rotation. Domain Knowledge: Equities, post‐trade, or financial services experience; trade lifecycle concepts, asset servicing, position management ...

best practices such as peer code review and pair programming Clear understanding of fundamental computer science and software engineering concepts (e.g. design patterns, test-first design, SOLID principles) Desirable Familiarity with both Monolithic and Microservices-based systems A background in a product-led environment where ...

Strong knowledge of PostgreSQL (Postgres) - including schema design and query optimization Solid understanding of object-oriented programming principles and design Patterns Familiarity with front-end development and integration using HTML and JavaScript Experience with Jenkins and modern CI/CD practices Proficiency in AWS services ...

blockers early in the delivery lifecycle Drive best practices across software engineering, DevOps, and agile ways of working Contribute to architecture and design decisions, ensuring long-term maintainability Provide clear updates to stakeholders, supporting informed decision-making Key Skills & Experience Strong background in software engineering, either … technical delivery Experience working directly with clients or stakeholders in a consultative environment Strong understanding of agile methodologies, design patterns, and best practices Experience with test-driven development and modern testing approaches Proficiency with version control tools (e.g. Git) Solid understanding of cloud platforms (AWS, Azure ...

health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Your role: As a Software Engineer you will design, develop and deliver a range of transformational projects for clients, mainly within the financial services sector and with a focus on Kafka messaging, migrating … have a thorough understanding of software development and Computer Science fundamentals such as Object Oriented Programming, Data Structures and Design Patterns You are familiar with DevOps, CI/CD pipelines You're collaborative, enjoy problem solving and interacting with clients Apply now to find out more about ...

deliver scalable, upgradeable, and low-technical-debt applications. Integration – Design and implement secure, high-performing integrations with APIs, middleware, and event-driven patterns to ensure seamless data flow and system interoperability. DevOps & Automation – Apply branching strategies, CI/CD pipelines, test automation, and 2GP packaging to enable …/CD pipelines, 2GP packaging). Skilled in SOQL/SOSL optimisation and scalable data modelling. Strong grasp of Salesforce design patterns, component-based development, and secure coding practices. UI/UX development aligned with accessibility standards (WCAG) and responsive design. Advanced version control (Git) and deployment ...

beneficial but not essential) Strong collaboration and communication skills 4+ years of experience in data-focused software development, including data modelling, design patterns, and building scalable, secure systems Working knowledge of software engineering principles and best practices, including testing, packaging, API design, DevOps, DataOps ...

Monitoring tools, particularly Grafana Experience working with large-scale backend systems (1M+ DAU) Strong knowledge of web protocols, application servers and design patterns Git, Gradle, Maven, CI/CD and Cloud Build proficiency Benefits: Competitive salary and remote working flexibility Private healthcare, life assurance, and income protection ...

protocols e.g. TCP/IP, multicast You have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP, Data Structures, Design Patterns You're collaborative with great communication skills What's in it for you: *Please note this is a 12 month Fixed Term Contract, with ...

platforms. • Introduce new platform capabilities and integrate strategic data sources in line with enterprise priorities. • Define and own data platform architecture, design patterns, and engineering standards. Platform Engineering & Architecture • Lead the implementation of data architecture and data engineering frameworks across ingestion, data layers, semantic layers, and consumption. ...

technical requirements for the role are: Must haves: Ability and experience in system programming using Golang. This includes knowledge of database (MongoDB) access patterns (e.g., Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. Proven experience developing production-grade RESTful APIs ideally with … Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with Kubernetes-specific platform components and principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets ...

interacting with and co-designing production-grade RESTful APIs ideally with an API-first approach. Strong knowledge of frontend polling and other async interactions patterns such as: polling/SSE/WebSockets for long-running tasks, optimistic updates, progress states, idempotent actions. Proficiency in integration, component and unit testing … preferably with GitHub Actions. Nice to have Some experience in backend system development (ideally using Golang). This includes knowledge of database (MongoDB) access patterns (e.g., Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. Familiarity with the OpenAPI specification and code generation toolsets ...

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. ...

Principal Network Architect , you will be a trusted advisor, technical authority, and strategic partner to our clients. You will lead the design of complex, secure, and scalable network architectures, translating business requirements into robust technical solutions. This role combines technical leadership, solution architecture, consultancy, and pre-sales engagement … levels. You will work closely with customers, sales, delivery teams, engineering functions, and senior stakeholders—guiding engagements from initial concept through to detailed design, delivery oversight and operational readiness. Key Responsibilities Client Engagement & Consultancy Operate as a trusted advisor for key clients and prospective customers (new logos). ...

that drive commercial growth. What You'll Do as a Principal Data Engineer Lead the architectural direction of our new data estate, defining the patterns and blueprints that will shape our platform for years to come. Make key decisions on how we utilise Databricks and Azure, including Lakehouse, Medallion … Eventing design patterns. Own the discovery and assessment of our legacy estate, determining what to migrate, modernise or decommission. Manage and develop a team of data engineers, driving hiring, performance and professional development. Implement modern engineering standards across CI/CD, automated testing, observability and cost control. Partner ...

Type: Contract - 6-month initial This programme delivers a production-grade enterprise agentic AI platform, with MCP as the extensibility layer. Responsibilities Design and build MCP servers and tools that expose enterprise systems and workflows to AI agents. Implement Skills that combine tools, data, and reasoning into structured … environments. Hands-on experience with LLMs, agent frameworks, and agentic reasoning patterns. Practical understanding of Model Context Protocol (MCP), including tool and server design patterns. Experience building REST APIs, ideally using FastAPI. Familiarity with prompt engineering and retrieval-augmented generation (RAG) architectures. Experience with containerisation and Kubernetes-based ...

routing logic to ensure alignment between Marketing, Sales, and RevOps, while maintaining accurate attribution and reporting integrity. Partner with Marketing leadership to design and operationalise scalable attribution and funnel measurement frameworks aligned to RevOps definitions (e.g., MQL → S2 → Closed Won), ensuring consistency between HubSpot, Salesforce, and executive reporting. … Support the Marketing and Web teams on HubSpot CMS architecture and optimisation (templates, modular content structures, SEO performance, analytics), ensuring scalable and reusable design patterns. Partner with Marketing and Web teams to ensure HubSpot content structures support AI‐driven discovery (e.g. semantic structure, structured content models, conversational query ...