ECMAScript Jobs in London

1 to 25 of 989 ECMAScript Jobs in London

Software Engineer (SC Cleared)

London Area, United Kingdom
Hybrid/Remote Options
Areti Group | B Corp™
reviews, and best practices Collaborate with cross-functional teams to deliver project goals Stay current with emerging technologies and development methodologies Tech Stack & Tools Programming Languages: C++, C#, Python, JavaScript, TypeScript, Java Frameworks & Libraries: .NET, Node.js, React, Angular, Spring Boot, Django (depending on role) Cloud Platforms: AWS, Azure, GCP DevOps & CI/CD: Docker, Kubernetes, Git, Jenkins Agile methodologies and More ❯
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Software Engineer (SC Cleared)

City of London, London, United Kingdom
Hybrid/Remote Options
Areti Group | B Corp™
reviews, and best practices Collaborate with cross-functional teams to deliver project goals Stay current with emerging technologies and development methodologies Tech Stack & Tools Programming Languages: C++, C#, Python, JavaScript, TypeScript, Java Frameworks & Libraries: .NET, Node.js, React, Angular, Spring Boot, Django (depending on role) Cloud Platforms: AWS, Azure, GCP DevOps & CI/CD: Docker, Kubernetes, Git, Jenkins Agile methodologies and More ❯
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Cloud Data & Full Stack Engineer -SC, CLOUD - UK wide

London, South East, England, United Kingdom
Hybrid/Remote Options
Adecco
user experiences.What We're Looking For* Degree in Computer Science, Engineering, or equivalent experience.* Proven experience in full stack development and data engineering.* Strong front-end skills (HTML, CSS, JavaScript, React required).* Solid back-end expertise (Java and Node.js required).* Familiarity with cloud-native architectures and DevOps practices.* First-class leadership or management skills to guide teams and More ❯
Employment Type: Full-Time
Salary: £72,000 - £100,000 per annum
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Java Full Stack Engineer SC Cleared/Eligible

London, South East, England, United Kingdom
Hybrid/Remote Options
Sanderson
ll work closely with multidisciplinary teams to deliver scalable, secure, and user-focused solutions. Key Responsibilities Develop microservices using Java (Spring Boot). Build responsive front-end applications using JavaScript/TypeScript, React, HTML, and CSS. Use Git-based version control and CI/CD pipelines (GitHub, GitLab, Jenkins). Containerize applications using Docker and manage deployments in cloud environments More ❯
Employment Type: Full-Time
Salary: Competitive salary
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Head of Software Engineering | Full Stack | Global Asset Manager, London

City Of London, England, United Kingdom
Hybrid/Remote Options
SGI
an expert in every tool, but you must be very strong across C# and .NET and comfortable guiding teams using: Backend: C#, .NET (Core), RESTful APIs, microservices Frontend: Modern JavaScript/TypeScript frameworks (e.g. React, Angular or similar) Cloud: Azure or AWS (Azure preferred), containerisation (Docker, Kubernetes) Data & Integration: SQL, messaging/event streaming, distributed systems concepts DevOps: CI/ More ❯
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Node Developer

london, south east england, united kingdom
Solirius Reply
code quality. Agile Methodology: Participate in Agile development cycles, contributing to sprint planning, code reviews, and continuous delivery. Key Skills/Experience: Proven experience in development Strong knowledge of JavaScript (ES6+), asynchronous programming, and event-driven architecture. Experience with building and maintaining RESTful APIs. Solid understanding of SQL and NoSQL databases (e.g., MongoDB, PostgreSQL, MySQL). Familiarity with authentication and More ❯
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Senior Pricing Developer

London, United Kingdom
Hybrid/Remote Options
MS Amlin
to have. These include:Must haves Proven track record as a developer in an insurance or financial services environment; Strong working knowledge of programming languages (e.g. SQL, C#, VBA, Javascript, XML, JSON, Python); Experience building Excel-integrated applications and/or web-based pricing platforms. Strong database skills (SQL Server or similar) and data integration experience; Proactive, collaborative, flexible and More ❯
Employment Type: Permanent
Salary: GBP Annual
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Technical Lead

London Area, United Kingdom
Hybrid/Remote Options
Anson McCade
and agile delivery Expertise in CI/CD pipelines, infrastructure-as-code, and cloud-native development Solid knowledge of modern development frameworks and tools Our Tech Stack includes: Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue, Angular, React, Node, Next, Spring/Spring Boot, .NET/ASP.NET Cloud Platforms: AWS, GCP, Azure CI/CD: Jenkins, GitHub Actions, Azure DevOps More ❯
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Technical Lead

City of London, London, United Kingdom
Hybrid/Remote Options
Anson McCade
and agile delivery Expertise in CI/CD pipelines, infrastructure-as-code, and cloud-native development Solid knowledge of modern development frameworks and tools Our Tech Stack includes: Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue, Angular, React, Node, Next, Spring/Spring Boot, .NET/ASP.NET Cloud Platforms: AWS, GCP, Azure CI/CD: Jenkins, GitHub Actions, Azure DevOps More ❯
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Technical Lead

London Area, United Kingdom
Hybrid/Remote Options
Anson McCade
practical, technical solutions. Provide technical expertise during bids and proposals, influencing solution design and delivery approach. Tech Stack You’ll work with modern, scalable technologies and frameworks including: Languages: JavaScript/TypeScript, Java, Frameworks: React, Angular, Node.js, Spring Boot, .NET Cloud Platforms: AWS, Azure, GCP CI/CD: Jenkins, GitHub Actions, Azure DevOps IaC: Terraform, CloudFormation, Azure Bicep Safe and More ❯
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Technical Lead

City of London, London, United Kingdom
Hybrid/Remote Options
Anson McCade
practical, technical solutions. Provide technical expertise during bids and proposals, influencing solution design and delivery approach. Tech Stack You’ll work with modern, scalable technologies and frameworks including: Languages: JavaScript/TypeScript, Java, Frameworks: React, Angular, Node.js, Spring Boot, .NET Cloud Platforms: AWS, Azure, GCP CI/CD: Jenkins, GitHub Actions, Azure DevOps IaC: Terraform, CloudFormation, Azure Bicep Safe and More ❯
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Software Engineer

London Area, United Kingdom
BAE Systems
this role. • Programming Proficiency: •Strong experience with C# and .NET frameworks. •Solid understanding of data structures, algorithms, and programming principles. •Experience working with other relevant languages such as Python, JavaScript, or TypeScript. • Data Systems Knowledge: •Exposure to working in data-centric environments, supporting ETL/ELT pipelines or data processing services. •Familiarity with SQL and NoSQL databases. •Understanding of data More ❯
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Software Engineer

City of London, London, United Kingdom
BAE Systems
this role. • Programming Proficiency: •Strong experience with C# and .NET frameworks. •Solid understanding of data structures, algorithms, and programming principles. •Experience working with other relevant languages such as Python, JavaScript, or TypeScript. • Data Systems Knowledge: •Exposure to working in data-centric environments, supporting ETL/ELT pipelines or data processing services. •Familiarity with SQL and NoSQL databases. •Understanding of data More ❯
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Microsoft 365/Power Platform Support & Development Consultant

Greater London, England, United Kingdom
Hybrid/Remote Options
Version 1
the SharePoint Platform and core feature set, and working knowledge of SharePoint Services; BCS, Search, Excel, etc. Knowledge of C# & SQL programming (e.g. TSQL) advantageous Knowledge of HTML, CSS3, JavaScript, jQuery, and Source control methodologies and principles advantageous Knowledge of React, Angular, or other JS frameworks advantageous. Familiarity with MVC framework, working knowledge of common architectural patterns, and Agile advantageous. More ❯
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Senior Software Engineer - Java, Spring Boot, Microservices

East London, London, United Kingdom
TPXImpact Holdings Plc
Boot and Microservices. Strong understanding of Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency in one or more programming languages (e.g., Python, Java, JavaScript) and experience with software architecture patterns. Experience with cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code. Familiarity with CI/CD pipelines, automated testing, and modern software development More ❯
Employment Type: Permanent
Salary: £60,000
Posted:

Senior Full Stack Java Developer

london, south east england, united kingdom
Hybrid/Remote Options
Version 1
experience Experience in software engineering practices like Code Reviews, CI/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role using the following technologies: Frontend (JavaScript/TypeScript or Angular or React or Node) Backend (Java, SpringBoot, Hibernate, Kotlin) Experience in estimation and sizing Integration experience API Design experience Cloud experience Appetite to work with emerging More ❯
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Lead Software Engineer - Java, Spring Boot, Microservices

East London, London, United Kingdom
TPXImpact Holdings Plc
on experience with Java, Spring Boot and Microservices. Strong understanding of software development methodologies such as Agile, TDD and DevOps. Some proficiency in multiple programming languages such as Python, JavaScript, or similar. Extensive experience writing well-tested code. Good knowledge of cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code Experience with CI/CD pipelines and automated testing More ❯
Employment Type: Permanent
Salary: £70,000
Posted:

.NET Developer

City of London, London, England, United Kingdom
Hybrid/Remote Options
Noir
software solutions. .NET Developer applicants should have commercial experience with: .NET, .NET Core/ASP.NET MVC, C#, Azure SQL and Agile. Full training will be provided into: .NET 9, JavaScript, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. If you are dedicated to the youthful optimism More ❯
Employment Type: Full-Time
Salary: £40,000 - £50,000 per annum
Posted:

.NET Developer - London

Greater London, England, United Kingdom
Hybrid/Remote Options
Noir
software solutions. .NET Developer applicants should have commercial experience with: .NET, .NET Core/ASP.NET MVC, C#, Azure SQL and Agile. Full training will be provided into: .NET 9, JavaScript, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. If you are dedicated to the youthful optimism More ❯
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Software Engineering Lead

London Area, United Kingdom
Alexander Associates Technical Recruitment
clients. The position suits someone who enjoys solving complex challenges, mentoring engineers, and shaping modern, scalable systems using a variety of technologies and cloud platforms. Our Tech Stack Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue, Angular, React, Node, Next.js, Spring Boot, .NET Cloud Platforms: AWS, GCP, Azure CI/CD: Jenkins, GitHub Actions, Azure DevOps Infrastructure as Code: Terraform More ❯
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Software Engineering Lead

City of London, London, United Kingdom
Alexander Associates Technical Recruitment
clients. The position suits someone who enjoys solving complex challenges, mentoring engineers, and shaping modern, scalable systems using a variety of technologies and cloud platforms. Our Tech Stack Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue, Angular, React, Node, Next.js, Spring Boot, .NET Cloud Platforms: AWS, GCP, Azure CI/CD: Jenkins, GitHub Actions, Azure DevOps Infrastructure as Code: Terraform More ❯
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.NET Developer

City of London, London, England, United Kingdom
Hybrid/Remote Options
Noir
C# applications. .NET Developer applicants should have a skill set that encompasses: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client offers training in: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is a truly amazing opportunity to More ❯
Employment Type: Full-Time
Salary: £60,000 - £80,000 per annum
Posted:

.NET Developer

City of London, London, England, United Kingdom
Hybrid/Remote Options
Noir
.NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Knowledge of software development methodologies is of interest (Agile, Scrum). My client will provide training in: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is a truly exciting project, one More ❯
Employment Type: Full-Time
Salary: £50,000 - £80,000 per annum
Posted:

.NET Developer

City of London, London, England, United Kingdom
Hybrid/Remote Options
Noir
candidates with experience in either web application development (.NET Core/ASP.NET MVC, C#) or windows/desktop development (C#.NET). My client can provide training in: .NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, WPF, MVVM, Prism, continuous integration, dependency injection, RESTful, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and More ❯
Employment Type: Full-Time
Salary: £60,000 - £80,000 per annum
Posted:

.NET Developer

City of London, London, England, United Kingdom
Hybrid/Remote Options
Noir
Our client is looking for passionate .NET Developer with experience in .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. Our client will provide training in: .NET 9, JavaScript, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This is your opportunity to be part of More ❯
Employment Type: Full-Time
Salary: £50,000 - £70,000 per annum
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