Design Patterns Jobs in London

126 to 150 of 178 Design Patterns Jobs in London

React Native Developer

London, England, United Kingdom
Arrows
monitoring applications on Azure. TDD (Test-Driven Development) experience. Comfortable working with relational and NoSQL databases, including complex queries and performance optimization. Solid understanding of web design patterns, including SOLID principles. Experience working in an agile, collaborative environment. Familiarity with automated testing and CI/CD pipelines. The interview process has begun, so if you believe you More ❯
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Fullstack Developer .NET/JS

London, South East, England, United Kingdom
Lorien
Agile environment and experience working with Jira. · Good communication, both orally and in writing. Comfortable interacting with front office users. · Excellent knowledge of programming best practices, design patterns · Good analytical skills; able to understand, formalize and explain complex problems. · Confident numeracy and solid academic background in engineering, sciences or economics. Competencies: · Proactive - constantly seeking to improve and More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Solution Architect

West London, London, England, United Kingdom
McGregor Boyall
ensures that technology solutions directly support desired business outcomes - such as improved efficiency, customer experience, scalability, and innovation-while maintaining strong architectural integrity. The Solution Architect oversees the design of systems and applications across the enterprise and regularly reviews the application portfolio to maximise value, reduce complexity, and ensure agility. A complex business environment, you will work closely … and increase agility. With a pragmatic approach to architecture governance and best practice you'll contribute to the defining and enforcing architectural principles, technology standards, and design patterns that balance innovation with operational integrity. You'll lead architectural governance forums to review and approve solution designs and ensure architectural consistency across the enterprise. Collaboration with the business … ensuring architectural solutions are practical, understandable, and outcome-driven. To be considered for this contract you'll need to demonstrate the following: Multiple years experience in solution architecture, design , or technical leadership roles, with a track record of delivering business-focused technology solutions. Experience of working within logistics, heavy industry or businesses with significant physical assets (e.g. freight More ❯
Employment Type: Contractor
Rate: £700 per day
Posted:

Senior Software Engineer – IOS

london, south east england, united kingdom
Hybrid / WFH Options
News UK
solutions to internal teams, contributing to strategic discussions. What we are looking for from you: Solid commercial experience using Swift (required) and Objective-C (desirable) iOS design patterns, including MVVM+Coordinators Building UIKit views programmatically without using XIBs/Storyboards Using Autolayout to build adaptable layouts Experience profiling iOS applications for performance and memory issues SOLID design More ❯
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Senior Software Engineer

London Area, United Kingdom
Eunice
fast paced environment; loves the challenge to solve some of the hardest AI challenges; and eager to grow into a top engineering leader. What you'll be doing Design and implement Eunice user-facing applications for all product lines. Manage interactions between user-facing applications & the AI/data platform behind it. Participate in company/product strategy … Engineering Expertise - You have at least 5 years of experience in the industry and a solid foundation in computer science concepts: You enjoy solving complex coding and system design problems. You have deep knowledge in at least one popular … coding language for building web-based applications on both FE and BE, ideally Typescript, Javascript/NodeJS, etc. You have experience with common software and system design patterns and infrastructure including APIs, cloud infrastructure tools, storage solutions, data structures etc. Ideally you have experience working on AI/Crypto projects, or you are very eager to learn More ❯
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Senior Software Engineer

City of London, London, United Kingdom
Eunice
fast paced environment; loves the challenge to solve some of the hardest AI challenges; and eager to grow into a top engineering leader. What you'll be doing Design and implement Eunice user-facing applications for all product lines. Manage interactions between user-facing applications & the AI/data platform behind it. Participate in company/product strategy … Engineering Expertise - You have at least 5 years of experience in the industry and a solid foundation in computer science concepts: You enjoy solving complex coding and system design problems. You have deep knowledge in at least one popular … coding language for building web-based applications on both FE and BE, ideally Typescript, Javascript/NodeJS, etc. You have experience with common software and system design patterns and infrastructure including APIs, cloud infrastructure tools, storage solutions, data structures etc. Ideally you have experience working on AI/Crypto projects, or you are very eager to learn More ❯
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Senior Software Engineer

london, south east england, united kingdom
Eunice
fast paced environment; loves the challenge to solve some of the hardest AI challenges; and eager to grow into a top engineering leader. What you'll be doing Design and implement Eunice user-facing applications for all product lines. Manage interactions between user-facing applications & the AI/data platform behind it. Participate in company/product strategy … Engineering Expertise - You have at least 5 years of experience in the industry and a solid foundation in computer science concepts: You enjoy solving complex coding and system design problems. You have deep knowledge in at least one popular … coding language for building web-based applications on both FE and BE, ideally Typescript, Javascript/NodeJS, etc. You have experience with common software and system design patterns and infrastructure including APIs, cloud infrastructure tools, storage solutions, data structures etc. Ideally you have experience working on AI/Crypto projects, or you are very eager to learn More ❯
Posted:

Senior Software Engineer

london (city of london), south east england, united kingdom
Eunice
fast paced environment; loves the challenge to solve some of the hardest AI challenges; and eager to grow into a top engineering leader. What you'll be doing Design and implement Eunice user-facing applications for all product lines. Manage interactions between user-facing applications & the AI/data platform behind it. Participate in company/product strategy … Engineering Expertise - You have at least 5 years of experience in the industry and a solid foundation in computer science concepts: You enjoy solving complex coding and system design problems. You have deep knowledge in at least one popular … coding language for building web-based applications on both FE and BE, ideally Typescript, Javascript/NodeJS, etc. You have experience with common software and system design patterns and infrastructure including APIs, cloud infrastructure tools, storage solutions, data structures etc. Ideally you have experience working on AI/Crypto projects, or you are very eager to learn More ❯
Posted:

React Developer TypeScript - Hedge Fund

London, South East, England, United Kingdom
Hybrid / WFH Options
Client Server Ltd
engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. Location/WFH: You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. About you … and TypeScript You are experienced with other web technologies such as HTML, CSS, Web APIs You have a strong knowledge of Computer Science fundamentals including OOP, Design Patterns, Data Structures You have experience of working in large, fast paced organisations You are collaborative with great communication skills You are degree educated, having achieved a 2.1 or above More ❯
Employment Type: Full-Time
Salary: £80,000 - £95,000 per annum
Posted:

Senior Full Stack Engineer (Python)

London, United Kingdom
Hybrid / WFH Options
Lendable Ltd
Experience with Javascript/Typescript and a modern JS framework such as React , Angular or Vue.js . We generally use React & NextJS Strong engineering principles & practices : design patterns, testing, clean code and a good reviewerPrevious experience working in a product-focused team A keen desire to want to learn and input into a highly collaborative team A … t meet all of these, please apply anyway! You use AI tools like Copilot , Cursor , Claude or others in your day-to-day coding Exposure to Domain Driven Design, Message-Driven Systems and Event Sourcing Experience with cloud infrastructure , particularly AWSSQL , and finding your way around data schemas Shipping containerised software with Argo , Kubernetes , Docker and Terraform Skill More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Principal Engineer

London Area, United Kingdom
Hybrid / WFH Options
Ozone Talent
to align engineering to ambitious commercial objectives Experience in line management responsibilities while remaining deeply technical Desire for building API-first products Deep understanding of software design patterns, SOLID principles, and test-driven development Experience with Agile methodologies, including peer reviews & pair programming. Ability to translate business needs into scalable technical solutions Benefits: Competitive salary and bonus More ❯
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Principal Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Ozone Talent
to align engineering to ambitious commercial objectives Experience in line management responsibilities while remaining deeply technical Desire for building API-first products Deep understanding of software design patterns, SOLID principles, and test-driven development Experience with Agile methodologies, including peer reviews & pair programming. Ability to translate business needs into scalable technical solutions Benefits: Competitive salary and bonus More ❯
Posted:

Principal Engineer

london, south east england, united kingdom
Hybrid / WFH Options
Ozone Talent
to align engineering to ambitious commercial objectives Experience in line management responsibilities while remaining deeply technical Desire for building API-first products Deep understanding of software design patterns, SOLID principles, and test-driven development Experience with Agile methodologies, including peer reviews & pair programming. Ability to translate business needs into scalable technical solutions Benefits: Competitive salary and bonus More ❯
Posted:

Principal Engineer

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Ozone Talent
to align engineering to ambitious commercial objectives Experience in line management responsibilities while remaining deeply technical Desire for building API-first products Deep understanding of software design patterns, SOLID principles, and test-driven development Experience with Agile methodologies, including peer reviews & pair programming. Ability to translate business needs into scalable technical solutions Benefits: Competitive salary and bonus More ❯
Posted:

Senior Frontend Developer

London, South East, England, United Kingdom
Oscar Technology
with backend engineers to integrate APIs (FastAPI, SQLModel, PostgreSQL). Optimise performance and scalability of frontend components for complex data workloads. Implement clean, reusable UI components and modern design patterns. Work closely with product and data teams to deliver user-friendly data visualisations. If you're interested, apply now for immediate consideration. Oscar Associates (UK) Limited is acting More ❯
Employment Type: Contractor
Rate: £350 - £450 per day
Posted:

Senior Software Engineer

Greater London, England, United Kingdom
Hybrid / WFH Options
Tuza
workflows that form the backbone of our core banking platform, keeping it scalable, secure, and auditable by design. Spike proof-of-concepts to explore new technologies, design patterns, and product opportunities. Balance speed with longevity by knowing when to move fast and when to invest in scalable, maintainable and extensible foundations. We collaborate and deliver Work closely … with product, design, and data teams to turn complex, regulated banking processes into elegant, automated workflows. Own features end-to-end, from concept to production, with a done-is-deployed attitude. We keep the bar high Drive technical excellence by setting the standard for speed, quality, and craft through code, PR reviews, and knowledge sharing. Continuously improve our … balanced by a bias for shipping . You bring advanced expertise in TypeScript and feel comfortable working across the full-stack. You have a solid grasp of system design and can build scalable, maintainable architectures. You hold a high bar for craftsmanship , and care deeply about what you build and how users experience it. You’re excited to More ❯
Posted:

Senior Software Engineer

london, south east england, united kingdom
Hybrid / WFH Options
Tuza
workflows that form the backbone of our core banking platform, keeping it scalable, secure, and auditable by design. Spike proof-of-concepts to explore new technologies, design patterns, and product opportunities. Balance speed with longevity by knowing when to move fast and when to invest in scalable, maintainable and extensible foundations. We collaborate and deliver Work closely … with product, design, and data teams to turn complex, regulated banking processes into elegant, automated workflows. Own features end-to-end, from concept to production, with a done-is-deployed attitude. We keep the bar high Drive technical excellence by setting the standard for speed, quality, and craft through code, PR reviews, and knowledge sharing. Continuously improve our … balanced by a bias for shipping . You bring advanced expertise in TypeScript and feel comfortable working across the full-stack. You have a solid grasp of system design and can build scalable, maintainable architectures. You hold a high bar for craftsmanship , and care deeply about what you build and how users experience it. You’re excited to More ❯
Posted:

Senior Data Engineer

London, South East, England, United Kingdom
Harnham - Data & Analytics Recruitment
scraping and parsing of unstructured text (e.g., scanned forms and documents). Collaborating on forecasting and predictive analytics initiatives. Bringing modern engineering practices, testing frameworks, and design patterns to the wider data function. Tech Stack & Skills Core skills: Strong experience with DBT, Airflow, Snowflake, and Python Proven background in automated testing, CI/CD, and test-driven … development Experience building and maintaining data pipelines and APIs in production environments Nice to have: Knowledge of Snowflake infrastructure and data architecture design Experience using LLMs or MLOps frameworks for data extraction or model training Familiarity with cloud-agnostic deployments and version control best practices What You'll Bring A proactive, hands-on approach to engineering challenges A More ❯
Employment Type: Contractor
Rate: £500 - £560 per day
Posted:

Front End Engineer React - Hedge Fund

South West London, London, United Kingdom
Hybrid / WFH Options
Client Server
engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. Location/WFH: You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. About you … and TypeScript You are experienced with other web technologies such as HTML, CSS, Web APIs You have a strong knowledge of Computer Science fundamentals including OOP, Design Patterns, Data Structures You have experience of working in large, fast paced organisations You are collaborative with great communication skills You are degree educated, having achieved a 2.1 or above More ❯
Employment Type: Permanent, Work From Home
Salary: £95,000
Posted:

UI automation tester

London, South East, England, United Kingdom
Hybrid / WFH Options
Lorien
a Web UI specifically within the retail banking industry 6 months initial contract, London based, hybrid working. INSIDE IR35 Playwright Typescript Hands on experience with Page Object Model design pattern Building CI/CD pipelines (GitLab, Jenkins). Experience implementing custom test automation frameworks Experience with visual regression testing, system integration testing Experience with API mocking libraries/ More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Java Developer

London Area, United Kingdom
Hybrid / WFH Options
Stott and May
join our London-based technology team. You will work on designing, developing, and maintaining enterprise-level applications that support our digital platforms and customer-facing services. Key Responsibilities: Design, develop, and maintain high-quality Java applications and microservices. Collaborate with cross-functional teams including product, UX, and QA to deliver innovative solutions. Participate in full software development lifecycle … analysis, design, development, testing, deployment, and support. Ensure code quality through unit testing, code reviews, and adherence to best practices. Troubleshoot, debug, and optimize applications for performance and scalability. Stay up-to-date with the latest Java technologies and industry trends. Required Skills & Experience: Strong experience in Java (Java 8+) development. Solid understanding of object-oriented programming and … design patterns. Experience with Spring Framework (Spring Boot, Spring MVC, Spring Data) . Experience with relational databases (e.g., MySQL, PostgreSQL) and writing SQL queries. Knowledge of RESTful API development and integration. Familiarity with version control systems, preferably Git . Understanding of Agile/Scrum methodologies. Desirable Skills: Experience with cloud platforms (AWS, Azure, or GCP). Knowledge of More ❯
Posted:

Java Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Stott and May
join our London-based technology team. You will work on designing, developing, and maintaining enterprise-level applications that support our digital platforms and customer-facing services. Key Responsibilities: Design, develop, and maintain high-quality Java applications and microservices. Collaborate with cross-functional teams including product, UX, and QA to deliver innovative solutions. Participate in full software development lifecycle … analysis, design, development, testing, deployment, and support. Ensure code quality through unit testing, code reviews, and adherence to best practices. Troubleshoot, debug, and optimize applications for performance and scalability. Stay up-to-date with the latest Java technologies and industry trends. Required Skills & Experience: Strong experience in Java (Java 8+) development. Solid understanding of object-oriented programming and … design patterns. Experience with Spring Framework (Spring Boot, Spring MVC, Spring Data) . Experience with relational databases (e.g., MySQL, PostgreSQL) and writing SQL queries. Knowledge of RESTful API development and integration. Familiarity with version control systems, preferably Git . Understanding of Agile/Scrum methodologies. Desirable Skills: Experience with cloud platforms (AWS, Azure, or GCP). Knowledge of More ❯
Posted:

Senior Python Developer

London, England, United Kingdom
Hybrid / WFH Options
Focus on SAP
data-driven solutions, analytical models, and digital tools that empower analysts and commercial teams across multiple trading regions. Working in a highly collaborative, fast-paced environment, you will design, build, and support scalable analytics applications that directly influence trading strategies and business decisions. Key Responsibilities: Partner with analysts and stakeholders to translate business requirements into robust technical solutions … including testing, version control, and CI/CD pipelines. Key Skills: Proven experience in Python programming for data analysis (pandas, numpy, Jupyter). Strong object-oriented programming and design pattern knowledge. Experience with SQL and relational databases. Familiarity with data visualisation tools (e.g., Plotly Dash, Power BI). Understanding of software development best practices (Git, CI/CD More ❯
Posted:

Senior Python Developer

london, south east england, united kingdom
Hybrid / WFH Options
Focus on SAP
data-driven solutions, analytical models, and digital tools that empower analysts and commercial teams across multiple trading regions. Working in a highly collaborative, fast-paced environment, you will design, build, and support scalable analytics applications that directly influence trading strategies and business decisions. Key Responsibilities: Partner with analysts and stakeholders to translate business requirements into robust technical solutions … including testing, version control, and CI/CD pipelines. Key Skills: Proven experience in Python programming for data analysis (pandas, numpy, Jupyter). Strong object-oriented programming and design pattern knowledge. Experience with SQL and relational databases. Familiarity with data visualisation tools (e.g., Plotly Dash, Power BI). Understanding of software development best practices (Git, CI/CD More ❯
Posted:

Software Engineer

South Croydon, London, United Kingdom
Hybrid / WFH Options
Inspire People
Data and Technology (DDaT) directorate. The practice includes Developers who work in multidisciplinary agile teams with product managers, delivery managers, testers, business analysts and user researchers. Together they design, build and maintain digital cloud services and legacy systems that power HMLR's core services. The community promotes modern engineering standards, continuous improvement and peer learning, offering opportunities to … Key Responsibilities Develop, test and maintain secure, reliable and efficient software applications. Participate in agile ceremonies, including sprint planning, retrospectives and daily stand-ups. Collaborate with colleagues to design and implement APIs, services and integrations. Contribute to code reviews and continuous integration processes. Troubleshoot and resolve production issues as part of a 'you build it, you run it … culture. Stay up to date with modern engineering practices and contribute ideas for improvement. Essential Skills Experience of the full software development lifecycle, from design through to delivery. Proficiency in at least one programming language i.e Java or Python Experience working with APIs, relational databases, and version control systems (e.g., Git). Understanding of agile delivery and collaborative More ❯
Employment Type: Permanent, Work From Home
Salary: £40,000
Posted:
Design Patterns
London
10th Percentile
£57,500
25th Percentile
£72,500
Median
£85,000
75th Percentile
£106,875
90th Percentile
£125,000