JavaScript Jobs in London

301 to 325 of 851 JavaScript Jobs in London

React Native Full Stack Engineer

London, United Kingdom
Theodo
part of a small, dynamic team of developers. You'll collaborate closely with agile and technical coaches to build scalable solutions using cutting edge technologies. Skills React Native Node.Js (javascript/Typescript) Ability to work directly with stakeholders Strong communication skills and comfortable working in cross-functional teams Stem or Computer Science Degree or comparative experience Advantageous Skills Nest.js AWS More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

QA Analyst

London, South East, England, United Kingdom
Hybrid / WFH Options
Pontoon
smart order routing). Understanding of interest rate derivatives (swaps, futures). Familiarity with automation testing (advantageous). Strong knowledge of SDLC in Agile environments. Technical skills: SQL, Python, JavaScript, APIs, data reconciliation. Experience with Microsoft Office tools (Word, Excel, PowerPoint, Outlook). Strong documentation, bug reporting, and prioritisation skills. Excellent problem-solving, communication, and stakeholder management skills. Personal Attributes More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Junior Java Software Developer

London, United Kingdom
Hybrid / WFH Options
BAE Systems (New)
the software you produce. Apache Maven Desirable Skills and Experience Industry experience of any of the following technologies/skills would bebeneficial: Elasticsearch Docker Apache Hadoop, Kafka or Camel. Javascript Knowledge of both Windows and Linux operating systems. Kubernetes Nifi Nsq Apache Ignite Arango Why BAE Systems? This is a place where you'll be able to make a real More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Security Engineer - CIAM XDP

London, UK
Barclays Bank PLC
DevSecOps best practices, vulnerability scanning, tools, approaches, vulnerability patching and vendor management for securityStrong experience in penetration testing and hands-on coding in at least one of the following: JavaScript, Java, Python.Some other highly desirable skills include:Experience in hands-on configuration, deployment and operation of ForgeRock COTS based IAM solutions (PingGateway, PingAM, PingIDM, PingDS) with embedded security gates, header More ❯
Posted:

Senior Security Engineer - CIAM XDP

london, south east england, united kingdom
Barclays Bank PLC
best practices, vulnerability scanning, tools, approaches, vulnerability patching and vendor management for security Strong experience in penetration testing and hands-on coding in at least one of the following: JavaScript, Java, Python. Some other highly desirable skills include: Experience in hands-on configuration, deployment and operation of ForgeRock COTS based IAM solutions (PingGateway, PingAM, PingIDM, PingDS) with embedded security gates More ❯
Posted:

Principal Engineer - CIAM XDP

Aldgate, Greater London, UK
Barclays Bank Plc
large corporate organisations. Experience with IAM engineering experience across authentication, authorisation, single sign-on, multi-factor authentication, identity lifecycle management, OAuth2.0, OpenID Connect, SAML and policy management Expertise with JavaScript, Java, Python, and must be comfortable with API and microservices development. Strong working knowledge of Site Reliability Engineering principles Experience with Cloud computing (AWS is essential, Azure is a plus More ❯
Posted:

Mid-Level Full-Stack Engineer (React + Go) Remote - EMEA / Engineering

London, United Kingdom
Hybrid / WFH Options
Tyk Technologies
Done Drive a culture of writing automated tests for every new feature and bug fix Advocate for and demonstrate TDD practices in daily development work Frontend Focus (React) Strong JavaScript foundations (ES6+, async/await, closures, event loop, modules) Proficient with React hooks, composition, controlled components, and context; avoid common anti-patterns Sensible state management (i.e Redux, context) and data More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Quantitative Engineer

Bromley, Kent, United Kingdom
Bank of America
business solutions Experience with large scale data sets with structured or unstructured data Experience in building user facing applications over large amounts of data using technologies like React, Angular, JavaScript etc. Experience implementing process improvements and automation Skills that will help High level of intellectual curiosity Experience implementing strategic process improvements and/or automation Experienced in building relationships and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software engineer (IT) in London - Computer Futures

London, United Kingdom
Java Script Works
CI/CD pipelines, automated testing, and infrastructure as code. Strong expertise in AWS services, particularly Amazon Lex and other AI/ML services. Proficiency in TypeScript and modern JavaScript frameworks. Solid understanding of DevOps methodologies and tools (e.g., CI/CD, Serverless, Monitoring). Experience with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Oracle CPQ Developer - REMOTE

City of London, London, United Kingdom
Hybrid / WFH Options
Access Computer Consulting
several years of hands-on Oracle CPQ experience. Implementation Experience in CPQ Commerce and Configuration flows is essential. You must also have deep expertise in SQL, Java/C#, JavaScript, jQuery, XML/XSL, and BML. Experience with Agile/SCRUM is also required for this role. You must have the ability to support multiple geographically dispersed teams and have More ❯
Employment Type: Contract
Rate: £450 - £510/day
Posted:

Mid Level React Native Developer

London Area, United Kingdom
SR2 | Socially Responsible Recruitment | Certified B Corporation™
up to date with the latest technology trends and implement improvements to enhance product performance and user experience. Qualifications : 🎓Computer science degree or a similar degree. 🎓Strong command of JavaScript with proven experience in React Native. 🎓Ability to code components, manage state, and confidently handle the fundamentals without reliance on tools like Copilot. 🎓Familiarity with Git, HTML/CSS, and More ❯
Posted:

Mid Level React Native Developer

City of London, London, United Kingdom
SR2 | Socially Responsible Recruitment | Certified B Corporation™
up to date with the latest technology trends and implement improvements to enhance product performance and user experience. Qualifications : 🎓Computer science degree or a similar degree. 🎓Strong command of JavaScript with proven experience in React Native. 🎓Ability to code components, manage state, and confidently handle the fundamentals without reliance on tools like Copilot. 🎓Familiarity with Git, HTML/CSS, and More ❯
Posted:

Mid Level React Native Developer

london, south east england, united kingdom
SR2 | Socially Responsible Recruitment | Certified B Corporation™
up to date with the latest technology trends and implement improvements to enhance product performance and user experience. Qualifications : 🎓Computer science degree or a similar degree. 🎓Strong command of JavaScript with proven experience in React Native. 🎓Ability to code components, manage state, and confidently handle the fundamentals without reliance on tools like Copilot. 🎓Familiarity with Git, HTML/CSS, and More ❯
Posted:

Mid Level React Native Developer

london (city of london), south east england, united kingdom
SR2 | Socially Responsible Recruitment | Certified B Corporation™
up to date with the latest technology trends and implement improvements to enhance product performance and user experience. Qualifications : 🎓Computer science degree or a similar degree. 🎓Strong command of JavaScript with proven experience in React Native. 🎓Ability to code components, manage state, and confidently handle the fundamentals without reliance on tools like Copilot. 🎓Familiarity with Git, HTML/CSS, and More ❯
Posted:

Full Stack Engineer - React Node.js Typescript AI

City of London, London, United Kingdom
Santa Monica Talent
spec to prod. Design, build user‐facing features end‐to‐end, Deliver AI capabilities that demonstrably improve user outcomes. Tech stack 70& - React, Next.js, Node/NestJS, PostgreSQL TypeScript, Javascript, GCP. 30% - AI (LLMs, RAG) About the Role: You will collaborate with engineering and product teams to design, develop, test, and deploy high-quality software solutions. Working with the latest More ❯
Posted:

Full Stack Engineer - React Node.js Typescript AI

London Area, United Kingdom
Santa Monica Talent
spec to prod. Design, build user‐facing features end‐to‐end, Deliver AI capabilities that demonstrably improve user outcomes. Tech stack 70& - React, Next.js, Node/NestJS, PostgreSQL TypeScript, Javascript, GCP. 30% - AI (LLMs, RAG) About the Role: You will collaborate with engineering and product teams to design, develop, test, and deploy high-quality software solutions. Working with the latest More ❯
Posted:

Cyber Security Architect

london, south east england, united kingdom
Lorien
or development security operations Hands-on exposure to AWS cloud services Strong understanding of Identity and Access Management (IAM) principles and tools Experience with scripting/programming languages (e.g., JavaScript) Foundational knowledge of networking and security principles Familiarity with Git-based development workflows (preferably GitHub) Strong problem-solving skills and a passion for security What We Offer: Benefits: 25 days More ❯
Posted:

Solution Architect

London, United Kingdom
Hybrid / WFH Options
N Consulting Limited
scalable and cost-effective solutions. Required Skills and Qualifications: Technical Proficiency: Strong knowledge of back-end languages and frameworks (e.g., Node.js, Python), RESTful APIs, and front-end basics (HTML, JavaScript). Cloud Expertise: Hands-on experience with serverless architectures and services on AWS, GCP, or Azure (e.g., AWS Lambda, Google Tag Manager Server-Side, Azure Functions). Tagging Experience: Proven More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Principal Software Engineer

London, United Kingdom
iO Associates
new tools internally to improve access to services, automate processes, and enhance systems in housing and property services. What we're looking for Strong software engineering expertise, ideally with JavaScript (React preferred) and knowledge of cloud platforms (AWS, Azure, Cloudflare). Experience in solution design and delivering end-to-end digital services. Background in consultancy Knowledge of containerisation tools (Docker More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Tech Lead Shopify

London, South East, England, United Kingdom
Hybrid / WFH Options
Salt Search
developers, run code reviews, and foster team growth Promote continuous improvement, knowledge sharing, and technical excellence What we're looking for Strong experience in Shopify development with expertise in JavaScript, HTML, CSS Experience leading teams or operating in a senior developer role Ability to design scalable solutions and communicate with both technical and non-technical stakeholders Knowledge of DevOps practices More ❯
Employment Type: Full-Time
Salary: £60,000 - £70,000 per annum
Posted:

Senior DevOps Engineer

City of London, London, United Kingdom
trg.recruitment
companies (not consultancies) ✔️ Happy to work 3-4 days/week from the London office 🌱 Bonus Points ➕ Experience with MongoDB, Elasticsearch, PostgreSQL ➕ Startup/scale-up exposure ➕ Familiarity with JavaScript/TypeScript stack ⭐ Benefits? ✨ Full ownership of a modern cloud-native stack ✨ Real impact in a small, product-led engineering team ✨ Work with globally recognised brands ✨ Share options in a More ❯
Posted:

Senior DevOps Engineer

London Area, United Kingdom
trg.recruitment
companies (not consultancies) ✔️ Happy to work 3-4 days/week from the London office 🌱 Bonus Points ➕ Experience with MongoDB, Elasticsearch, PostgreSQL ➕ Startup/scale-up exposure ➕ Familiarity with JavaScript/TypeScript stack ⭐ Benefits? ✨ Full ownership of a modern cloud-native stack ✨ Real impact in a small, product-led engineering team ✨ Work with globally recognised brands ✨ Share options in a More ❯
Posted:

Product Owner

City of London, London, United Kingdom
KennedyPearce Consulting
ability to bridge product and engineering Nice to have: Familiarity with trading, spread betting or investment products Knowledge of APIs, data flows, and modern languages like C#, Python or JavaScript/TypeScript Experience working in distributed, hybrid or outsourced engineering teams More ❯
Posted:

Product Owner

London Area, United Kingdom
KennedyPearce Consulting
ability to bridge product and engineering Nice to have: Familiarity with trading, spread betting or investment products Knowledge of APIs, data flows, and modern languages like C#, Python or JavaScript/TypeScript Experience working in distributed, hybrid or outsourced engineering teams More ❯
Posted:

Senior DevOps Engineer

london, south east england, united kingdom
trg.recruitment
companies (not consultancies) ✔️ Happy to work 3-4 days/week from the London office 🌱 Bonus Points ➕ Experience with MongoDB, Elasticsearch, PostgreSQL ➕ Startup/scale-up exposure ➕ Familiarity with JavaScript/TypeScript stack ⭐ Benefits? ✨ Full ownership of a modern cloud-native stack ✨ Real impact in a small, product-led engineering team ✨ Work with globally recognised brands ✨ Share options in a More ❯
Posted:
JavaScript
London
10th Percentile
£47,500
25th Percentile
£60,000
Median
£90,000
75th Percentile
£122,500
90th Percentile
£137,500