1 to 25 of 102 JavaScript Jobs in Central London

Principal Software Engineer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
security Required Skills & Experience: Extensive experience as a Full Stack Engineer with a strong track record in senior or principal-level roles Expertise in JavaScript/TypeScript and modern frontend frameworks (e.g., React, Angular, or Vue) Strong backend development experience (e.g., Node.js, Java, Python, or Go) Proven experience designing ...

Principal Software Engineer (Payments)

Hiring Organisation
X4 Technology
Location
City of London, London, United Kingdom
architecture decisions and technical strategy Support CI/CD pipelines and cloud infrastructure Mentor developers and promote engineering best practices Tech Stack: Frontend: TypeScript, JavaScript, (React/Angular), HTML5, CSS3 Backend: Python REST APIs Data: MySQL, PostgreSQL, Redis Cloud & DevOps: AWS, Docker, CI/CD, Kubernetes (nice to have) Architecture ...

Senior FullStack Developer

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
collaborate within a cross-functional agile team. Required Skills & Experience: Technical Skills Extensive professional software development experience. Front-end: Strong proficiency in React.js , JavaScript/TypeScript, Redux/RTK, hooks, and modern UI patterns and architecture. Micro front-end experience is key having delivered micro front-end architectures, and creating ...

Software Engineer - Contract

Hiring Organisation
ONMO
Location
City of London, London, United Kingdom
Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend : React/Next.js, React Native Programming Languages : TypeScript; JavaScript, Python Infrastructure : Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. As a Senior Full-stack Software Engineer, you will ...

C#/.NET Full Stack Engineer

Hiring Organisation
83zero Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£46000 - £55000/annum pension, health care, perks
consulting environment, working closely with architects, designers, product teams and client stakeholders. Key Responsibilities Design and build applications using ASP.NET Core, C# and modern JavaScript frameworks Develop responsive, accessible front-end interfaces using React, Angular or Blazor/Razor Contribute to cloud-native architectures on AWS or Azure Implement modern ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
application development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and Azure SQL. ...

.NET Developer, CMS, Sitecore, EpiServer, Umbraco

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £75,000 per annum
such as Sitecore, Optimizely, Umbraco, Alterian, Immediacy, Ektron, Kentico, Sitefinity or dotnetnuke. Our client can provide you with industry recognised training in: .NET 10.0, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This ...

Application Engineer

Hiring Organisation
Aimtech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
manage multiple projects and priorities in a fast-paced environment Technical Skills Power Platform (Power Apps, Power Automate, Power Pages, Power BI) Python, JavaScript, TypeScript, Angular or React ASP.NET Core, Entity Framework, REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL databases, vector databases FastAPI and AI service integrations (OpenAI ...

Senior Data Engineer

Hiring Organisation
Mastek
Location
City of London, Greater London, UK
Databricks development and deployment. Optimise Databricks workloads for performance and cost. Need to program using the languages such as SQL, Python, R, YAML and JavaScript Data Integration: Integrate data from various sources, including relational databases, APIs, and streaming data sources. Implement data integration patterns and best practices. Work with ...

Back End Developer (DV Cleared)

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£75,000
security clearance is essential. Proven experience as a backend or software engineer 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 ...

Full Stack Software Engineer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
enabling data scientists and engineers with Python-based development workflows and tooling Technology Stack: Azure Cloud Services C# (.NET 10) Python React.js and modern JavaScript (ES6+) Snowflake (Data Warehouse) Apache Airflow Terraform dbt SQL Server ...

Senior Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - £451 per day
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 and infrastructure-as-code using Terraform Strong experience with GitHub for version ...

Full Stack Software Engineer (Golang/Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
schema design, domain-driven architecture, and concurrency. Proven experience developing production-grade RESTful APIs ideally with an API-first approach. 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 ...

eDV Software Engineer

Hiring Organisation
Fortice
Location
City of London, London, United Kingdom
trust, high-sensitivity environments Contribute to systems architecture, testing, integration, and deployment Ideal Background: Strong experience in modern programming languages ( Python, Java, Typescript, JavaScript) Familiarity with secure coding principles and systems engineering Experience with cloud platforms (AWS, Azure, GCP) and DevOps tooling is a bonus Comfortable working in agile, iterative ...

Lead Python Engineer

Hiring Organisation
Velocity Tech
Location
City of London, London, United Kingdom
stakeholders, supporting informed decision-making Key Skills & Experience Strong background in software engineering, either as a Senior Engineer or Technical Lead Experience with JavaScript (Node.js/TypeScript) or Python-based environments Proven experience leading teams through end-to-end technical delivery Experience working directly with clients or stakeholders ...

Senior Sharepoint Consultant

Hiring Organisation
Career Legal Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
migrating SharePoint 2016 on-premise environments to SharePoint SE and/or SharePoint Online. Proven expertise in SharePoint Framework (SPFx) development. Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. Solid experience with C# ...

Back End Developer

Hiring Organisation
rmg digital
Location
City of London, Greater London, UK
platform features and technologies from the ground up. Experience needed as a Back End Developer: 3+ years of Node.js development Type Script/Strong JavaScript skills React REST API development ...

Senior Developer

Hiring Organisation
Propel
Location
City of London, London, United Kingdom
DynamoDB, CloudFront, SES, API Gateway, Step Functions, EventBridge, and SAM/CloudFormation • Strong SQL programming expertise • Experience with NestJS and modern front-end development (JavaScript, HTML, CSS) • Familiarity with GitLab (or similar) and CI/CD workflows • Proven track record optimizing data storage, retrieval, performance, and cost efficiency • Experience integrating ...

Front End Software Engineer (Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
model versioning, dataset management, verification workflows, and result/metric aggregations. Requirements: The technical requirements for the role are: Must have Strong 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. Solid ...

Sharepoint Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
migrating SharePoint 2016 on-premise environments to SharePoint SE and/or SharePoint Online. - Proven expertise in SharePoint Framework (SPFx) development. - Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. - Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. - Solid experience with C# ...

Lead Node Developer - Tech Scale-up

Hiring Organisation
Client Server
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
backend engineering background with leadership experience You have expertise with Node.js combined with strong PostgreSQL database skills You have a good knowledge of JavaScript and TypeScript You have experience of owning delivery end-to-end in Agile environments You have a passion for code quality, reliability and team development ...

Technical Power Platform Consultant

Hiring Organisation
Mphasis
Location
City of London, Greater London, UK
data modeling. Knowledge of SharePoint, Microsoft Teams, Azure Logic Apps, and Microsoft 365 ecosystem. Experience with JSON, REST APIs, and scripting (e.g., PowerShell or JavaScript). Familiarity with Agile methodologies and DevOps practices. Excellent problem-solving, communication, and interpersonal skills. Preferred Qualifications: Microsoft Certified: Power Platform App Maker Associate ...

Junior Cloud Engineer

Hiring Organisation
IRIS Audio Technologies
Location
City of London, London, United Kingdom
Linux systems and networking basics Familiarity with Docker Exposure to Infrastructure as Code concepts Basic scripting (e.g. Bash, Python) Familiarity with the TypeScript/JavaScript ecosystem Familiarity with version control (Git) Willingness to learn new technologies and languages Nice to have: Exposure to Terraform Exposure to Cloud Run/ ...

NextJS Frontend Developer

Hiring Organisation
Techaxis, Inc
Location
City of London, London, United Kingdom
office Key responsibilities: • Deliver a complete frontend application ensuring high performance on mobile and desktop while meeting security standards. • Write tested, wellstructured, and documented JavaScript, TypeScript, HTML, and CSS code. • Coordinate workflow between designers and developers to ensure seamless UI delivery. • Collaborate with backend developers during the creation and integration ...

Full-Stack C# Developer

Hiring Organisation
Deerfoot Recruitment Solutions Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £110000/annum
Server, Oracle, or equivalent systems. Desirable skills: We would love to hear from you if you also have experience in multi-threaded application development, JavaScript front-end frameworks like React, network programming (TCP/UDP), or distributed version control systems like Git or PlasticSCM. Salary ...