JavaScript Jobs in the City of London

101 to 125 of 375 JavaScript Jobs in the City of London

Software Engineer

london (city of london), south east england, united kingdom
rmg digital
support processes, documentation, and system reliability Continuously develop your technical knowledge across a range of technologies Required Skills & Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine enthusiasm for learning and tackling complex technical challenges More ❯
Posted:

Senior .NET Developer – Manchester (Hybrid Remote) - £60k

City of London, London, United Kingdom
Hybrid / WFH Options
Ada Meher
work. To Be Considered: Excellent experience with .NET 8/.NET Core/ASP.NET MVC Experience leading a small team in a Scrum environment Strong experience with Typescript or JavaScript Experience with CI/CD or Azure DevOps Any experience using Azure Portal would be a benefit an application but not neccessary Other technologies used in the stack include Typescript More ❯
Posted:

Senior .NET Developer – Manchester (Hybrid Remote) - £60k

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Ada Meher
work. To Be Considered: Excellent experience with .NET 8/.NET Core/ASP.NET MVC Experience leading a small team in a Scrum environment Strong experience with Typescript or JavaScript Experience with CI/CD or Azure DevOps Any experience using Azure Portal would be a benefit an application but not neccessary Other technologies used in the stack include Typescript More ❯
Posted:

Lead R Data Scientist - Sustainability

City of London, Greater London, UK
Hybrid / WFH Options
Morris Sinclair Recruitment
communication skills Structured approach to quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling More ❯
Employment Type: Part-time
Posted:

Unity Developer

City of London, Greater London, UK
Hybrid / WFH Options
MNRecruit
drive urban innovation. Responsibilities include: Designing and developing backend, desktop, and web applications. Building and maintaining RESTful APIs and microservices. Writing clean, efficient, and scalable code in Unity, C#, JavaScript, and TypeScript. Developing spatial databases and optimised queries using PostgreSQL/PostGIS. Supporting full testing cycles, product upgrades, and change management processes. Collaborating with cross-functional teams to deliver robust More ❯
Employment Type: Part-time
Posted:

Unity Developer

london (city of london), south east england, united kingdom
Hybrid / WFH Options
MNRecruit
drive urban innovation. Responsibilities include: Designing and developing backend, desktop, and web applications. Building and maintaining RESTful APIs and microservices. Writing clean, efficient, and scalable code in Unity, C#, JavaScript, and TypeScript. Developing spatial databases and optimised queries using PostgreSQL/PostGIS. Supporting full testing cycles, product upgrades, and change management processes. Collaborating with cross-functional teams to deliver robust More ❯
Posted:

Javascript Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Uneek Global
Senior Software Engineer - Full Stack - TypeScript, Node React, AWS, Serverless, DynamoDB - Energy & Utilities Cleantech SaaS Location: Hybrid/Remote - London (flexibility available) Salary: Up to £80,000 About the Company This role is with, in our opinion, one of the More ❯
Posted:

Javascript Developer

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Uneek Global
Senior Software Engineer - Full Stack - TypeScript, Node React, AWS, Serverless, DynamoDB - Energy & Utilities Cleantech SaaS Location: Hybrid/Remote - London (flexibility available) Salary: Up to £80,000 About the Company This role is with, in our opinion, one of the More ❯
Posted:

Senior Software Developer

City of London, London, United Kingdom
Spectrum IT Recruitment
level aptitude for technology Education to at least a BSc level or higher in Computer Science or Mathematics from a Russell Group University or equivalent. Desirable skills: HTML5, CSS, JavaScript Multi-threaded application development Understanding of Windows technologies WPF If you feel you have the skills and experience required for this opportunity, please apply or contact RyanOatley@SpectrumIT.co.uk More ❯
Posted:

Senior Test Engineer

City of London, Greater London, UK
Intec Select
and testing excellence across the team. Essential Skills and Experience: Proven experience in test automation using Cypress or Playwright. Strong knowledge of API testing (REST, WebSocket). Proficiency in JavaScript/TypeScript. Experience integrating tests within CI/CD pipelines (Azure DevOps, GitHub Actions, or Jenkins). Manual and exploratory testing experience. Background in Agile/Scrum delivery environments. Previous More ❯
Employment Type: Part-time
Posted:

Senior Software Developer

City of London, London, United Kingdom
Spectrum IT Recruitment
level aptitude for technology Education to at least a BSc level or higher in Computer Science or Mathematics from a Russell Group University or equivalent. Desirable skills: HTML5, CSS, JavaScript Multi-threaded application development Understanding of Windows technologies If you feel you have the skills and experience required for this opportunity, please contact Oliver Wilson on (phone number removed) or More ❯
Employment Type: Permanent
Salary: £100000 - £120000/annum
Posted:

Quantitative Developer (C#/Python)

City of London, Greater London, UK
QuanTech Partners
and problem-solving abilities. Ability to operate in a rapidly evolving environment Desirable Skills Financial markets knowledge, in particular fixed income. Exposure to interacting with C++ libraries Familiarity with JavaScript Messaging technologies such as Kafka or RabbitMQ. More ❯
Employment Type: Part-time
Posted:

Senior Test Engineer

london (city of london), south east england, united kingdom
Intec Select
and testing excellence across the team. Essential Skills and Experience: Proven experience in test automation using Cypress or Playwright. Strong knowledge of API testing (REST, WebSocket). Proficiency in JavaScript/TypeScript. Experience integrating tests within CI/CD pipelines (Azure DevOps, GitHub Actions, or Jenkins). Manual and exploratory testing experience. Background in Agile/Scrum delivery environments. Previous More ❯
Posted:

Senior Software Developer

london (city of london), south east england, united kingdom
Spectrum IT Recruitment
level aptitude for technology Education to at least a BSc level or higher in Computer Science or Mathematics from a Russell Group University or equivalent. Desirable skills: HTML5, CSS, JavaScript Multi-threaded application development Understanding of Windows technologies If you feel you have the skills and experience required for this opportunity, please contact Oliver Wilson on 02380 765 287 or More ❯
Posted:

Quantitative Developer (C#/Python)

london (city of london), south east england, united kingdom
QuanTech Partners
and problem-solving abilities. Ability to operate in a rapidly evolving environment Desirable Skills Financial markets knowledge, in particular fixed income. Exposure to interacting with C++ libraries Familiarity with JavaScript Messaging technologies such as Kafka or RabbitMQ. More ❯
Posted:

Tech Support Developer

City of London, London, United Kingdom
rmg digital
support processes, documentation, and system reliability Continuously develop your technical knowledge across a range of technologies Required Skills & Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine enthusiasm for learning and tackling complex technical challenges More ❯
Posted:

Tech Support Developer

london (city of london), south east england, united kingdom
rmg digital
support processes, documentation, and system reliability Continuously develop your technical knowledge across a range of technologies Required Skills & Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine enthusiasm for learning and tackling complex technical challenges More ❯
Posted:

Head of Engineering

City of London, London, United Kingdom
Hybrid / WFH Options
DRC Search
at both strategic and technical levels Experienced in Agile and modern DevOps practices Excellent communicator, able to inspire and influence across technical and non-technical teams Tech Environment (indicative) JavaScript/TypeScript, Node.js, React, AWS, Kubernetes, Terraform, CI/CD, Microservices Why Join High-impact leadership role within a product-led, scaling business Collaborative, engineering-first culture with modern tooling More ❯
Posted:

Head of Engineering

london (city of london), south east england, united kingdom
Hybrid / WFH Options
DRC Search
at both strategic and technical levels Experienced in Agile and modern DevOps practices Excellent communicator, able to inspire and influence across technical and non-technical teams Tech Environment (indicative) JavaScript/TypeScript, Node.js, React, AWS, Kubernetes, Terraform, CI/CD, Microservices Why Join High-impact leadership role within a product-led, scaling business Collaborative, engineering-first culture with modern tooling More ❯
Posted:

D365 Solution Architect - Azure, Power Platform – Outside IR35

City of London, London, United Kingdom
Experis UK
solution design documents, technical specifications, and user guides. Strong knowledge of CRM and ERP business processes - in sectors such as healthcare, retail, or regulated industries. Proficiency in C#, .NET, JavaScript, and SQL Server. Experience with data migration, integration strategies, and legacy system transformation. Strong stakeholder engagement and communication skills. Familiarity with Agile and DevOps methodologies. Data savvy (XML, Data Mapping More ❯
Posted:

Lead Software Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Harnham
datasets. Collaborate with external suppliers, partners, and stakeholders to align delivery. What we’re looking for: At least 5 years of experience delivering full-stack software development (Python backend, JavaScript frontend). Strong background in backend infrastructure – SQL/NoSQL, event stores, cloud storage. Proven experience in architecting secure, scalable systems in AWS, Azure, or GCP. Experience with CI/ More ❯
Posted:

Lead Software Developer

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Harnham
datasets. Collaborate with external suppliers, partners, and stakeholders to align delivery. What we’re looking for: At least 5 years of experience delivering full-stack software development (Python backend, JavaScript frontend). Strong background in backend infrastructure – SQL/NoSQL, event stores, cloud storage. Proven experience in architecting secure, scalable systems in AWS, Azure, or GCP. Experience with CI/ More ❯
Posted:

Front End Software Engineer (Typescript)

City of London, Greater London, UK
Hybrid / WFH Options
Safe Intelligence
integrate new features related to 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 performance and security knowledge: profiling More ❯
Posted:

Front End Software Engineer (Typescript)

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Safe Intelligence
integrate new features related to 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 performance and security knowledge: profiling More ❯
Posted:

Senior Software Development Engineer (Python/Javascript/React)

City of London, London, United Kingdom
Clearwater Analytics (CWAN)
Job Summary: The Trading and Risk Management System (TRMS) team is responsible for developing, supporting and maintaining our front and back office trading web applications using Python, the proprietary Beacon Dependency Graph and Glint, the Beacon UI framework. The successful More ❯
Posted:
JavaScript
the City of London
10th Percentile
£48,750
25th Percentile
£57,500
Median
£72,500
75th Percentile
£87,500
90th Percentile
£102,000