1 to 25 of 71 Permanent JavaScript Jobs in the City of London

Software Developer Backend (SFIA5)

Location
City Of London, England, United Kingdom
testing [cucumber, nightwatch]) Nice to have skills AWS Knowledge of Open Source BPMN workflow engines (Camunda, Activiti or Flowable) Experience on a front-end javascript framework such as react, angular or vue.js RedHat OpenShift for container orchestration Knowledge of NCSC’s 14 cloud security principles. You don’t meet ...

Senior Fullstack Software Engineer - (Java, Spring Boot, Microservices

Hiring Organisation
TPXImpact Holdings Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
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 ...

Senior Engineer (Java, Typescript & Azure)

Location
City Of London, England, United Kingdom
Contributing to architectural decisions, reducing technical debt and improving platform sustainability Who we're looking for: Strong commercial experience developing software using Java and JavaScript/TypeScript Experience building and supporting RESTful microservices in Spring Boot, Node.js or similar frameworks Solid understanding of cloud technologies, ideally Azure, alongside infrastructure ...

Applications Developer (Web / Mobile / Server) City of London / Hybr

Hiring Organisation
Eutopia Solutions Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80,000
ASP.NET Core, and SQL Server Minimum of 2 years of experience building and consuming REST APIs Minimum of 2 years of experience in HTML, JavaScript, and CSS Experience building modern, robust web applications using React; familiarity with other front-end libraries (e.g., jQuery, Bootstrap) would also be highly beneficial ...

Senior Software Engineer

Hiring Organisation
The Portfolio Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90000/annum
guidance, code reviews and mentoring to other engineers. You should have: Strong commercial experience with Python for backend and integration development. Strong TypeScript/JavaScript and React experience building production applications. Strong API design experience, including REST and/or GraphQL, authentication, authorisation, versioning and streaming. Hands-on experience with ...

Senior AI Consultant - Agentic AI & Generative AI

Hiring Organisation
Deerfoot Recruitment Solutions
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
traditional Machine Learning, Generative AI models and Agentic AI frameworks in client-facing environments, including data engineering in cloud environments. Strong Python (3.10+), TypeScript, JavaScript (ES6+), SQL and Bash. Front-end: React.js, Next.js (App Router & Server Components), Tailwind CSS, ShadCN UI, Redux, Zustand, Jest, Cypress plus AI product UX patterns ...

Technical Lead (AI & MACH)

Location
City Of London, England, United Kingdom
Langflow, Tensorflow Knowledge of Infrastructure as Code, CI/CD Use of Middleware and RESTful or GraphQL APIs Microservices and MACH Architectures. HTML, CSS, Javascript frameworks such as React, or Mobile technologies such as SwiftUI, Kotlin, Flutter or React‐native CMS, DXPs and common MarTech SaaS products integration Atlassian, Azure ...

Senior Software Engineer (Full-Stack - TypeScript/Node)

Location
City Of London, England, United Kingdom
most of the below,we'dlike to hear from you: Technical Skills Strong knowledge of Typescript and Node.js. Knowledge of modern frontend development, including JavaScript/TypeScript with frameworks like React or Next.js, and experience building intuitive, user-focused interfaces Experience designing and implementing backend systems Prior experience with Azure ...

Net developer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £60000/annum Negotiable
/TeamCity. Concepts: Multithreading, async programming, SQL/NoSQL, automated testing. Nice-to-Haves Fixed Income or electronic trading domain knowledge. Exposure to JavaScript frameworks (React/Angular) or broader AWS services. Apply Now: Submit your CV for immediate consideration. Randstad Technologies Ltd is a leading specialist recruitment business ...

Agentic AI / GenAI Consultant | From PoC to Production

Location
City Of London, England, United Kingdom
Required Building robust AI services and APIs using Python, FastAPI, Django or Flask, supported by strong SQL Create engaging, responsive AI products using TypeScript, JavaScript, React and Next.js Ground LLM applications in trusted business data through RAG, MCP and model integration Design multi-agent solutions using frameworks such as LangChain ...

Senior Full Stack Engineer (Javascript)

Location
City Of London, England, United Kingdom
Who is Atominvest Our software powers the world’s leading investment firms (across private equity, VC, infrastructure, credit etc.) enabling them to efficiently manage and drive value across their core business functions of investing, fundraising ...

Salesforce Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
Around 2+ years' experience in software engineering, application development or Salesforce development. - Experience with at least one modern programming language such as Java, C#, JavaScript, TypeScript, Python or Apex. - Understanding of software engineering fundamentals including APIs, data modelling, testing, version control and CI/CD. - Knowledge of Salesforce development ...

Net developer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £60000/annum Negotiable
. Cloud & Tools: AWS (EC2) , Docker, Git/TeamCity, SQL/NoSQL. Nice-to-Haves Fixed Income or electronic trading domain knowledge. Exposure to JavaScript frameworks (React/Angular) or wider AWS services. Apply Now: Submit your CV for immediate consideration. Fast 2-stage interview process! Randstad Technologies ...

Junior AI Automations Developer

Hiring Organisation
CyPro
Location
City of London, London, United Kingdom
changes). Security Engineering: support with the creation of new detection rules in the SOC. Learning and Development Become fluent in workflow automation, python, JavaScript, REST APIs and the Azure platform through hands-on work with mentoring. Work towards a recognised cloud or data certification, for example Microsoft ...

Web Application Support Engineer

Location
City Of London, England, United Kingdom
expertise is required Proven experience in web application support, ideally within the financial or corporate settings. Strong understanding of web technologies, including HTML, CSS, JavaScript, C# and relevant frameworks. Familiarity with server environments and database management systems. Excellent problem-solving skills and the ability to work under pressure. Strong communication ...

AI Workplace Senior Engineer

Hiring Organisation
INNOVATIVE TECH PEOPLE LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
Cloud App Security. Hands-on experience with Purview, governance policies, cross-tenant migrations, automation, and multi-tenant environments. Technical skills across PowerShell, PnP, Python, JavaScript, C#, JSON, Power Query/DAX, REST APIs, GraphQL, Dataverse, and SQL databases. Good understanding of AI governance, compliance, responsible AI, and Microsoft 365 Copilot. ...

Software Engineer

Location
City Of London, England, United Kingdom
experience in one or more of the following technologies but who is also open minded about learning new languages and technologies. Java, Python, JavaScript, TypeScript Angular, React, Vue Docker, Kubernetes AWS, Azure MERN, Elasticsearch, Neo4J Salary and Benefits A salary of £40-85k with an exciting array of projects ...

AI Solutions Architect

Hiring Organisation
INNOVATIVE TECH PEOPLE LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
security and compliance. Experience with Microsoft Copilot, Copilot Studio, AI governance, information architecture, and responsible AI practices. Strong technical background across PowerShell, PnP, Python, JavaScript, C#, JSON, REST APIs, GraphQL, SQL, and automation. Excellent client-facing communication, leadership, stakeholder management, and consulting skills. Desirable skills: Azure AI services, Azure landing ...

Senior Software Development Engineer

Location
City Of London, England, United Kingdom
address issues with empathy and a sense of urgency.Undertake any other reasonable activities required by management.Required SkillsExcellent proficiency in PythonExperience with TypeScript or Javascript, and Rust would be a strong plusFamiliarity with C++ is a plus.Experience in Financial domain is a plus.Strong command of a typed, object-oriented programming language.Deep ...

Full Stack Software Engineer

Location
City Of London, England, United Kingdom
consumer facing apps Full stack experience - strong with frontend technologies (React experience essential) and proficient across infrastructure and backend (ideally Python, or TypeScript/JavaScript) Strong collaboration skills across Product Discovery and Product Delivery phases Capable of taking ownership of a problem and delivering comprehensive solutions Considers the long-term ...

Senior Full-Stack Engineer: Java/TypeScript on Azure

Location
City Of London, England, United Kingdom
software lifecycle. Mentor peers, drive engineering excellence and partner with stakeholders to translate business needs into technical outcomes. You will work with Java/JavaScript, microservices, Azure, CI/CD, and modern DevOps practices in a collaborative environment that values security and quality. #J-18808-Ljbffr ...

Senior Salesforce Developer

Hiring Organisation
TetriQ Solutions
Location
City of London, London, United Kingdom
Lightning Components (LWC/Aura) • Salesforce APIs & Integrations • Salesforce DX, VS Code, Git • MuleSoft or Dell Boomi Integration Experience • REST & SOAP APIs • HTML, CSS, JavaScript • Agile & DevOps Practices • Salesforce Certifications (Architect/Developer) preferred Key Responsibilities • Design and implement scalable Salesforce solutions aligned with client business requirements. • Collaborate with business ...

Senior Customer Solutions Engineer

Location
City Of London, England, United Kingdom
integration, and creating customer‐facing developer resources such APIs, SDKs and documentation. Experience of Full Stack Web development and Cloud Architecture Demonstrable Experience with JavaScript, NodeJS, Python or equivalent frameworks/languages Excellent interpersonal and communication skills, both verbal and written. Articulate, charismatic, and confident in a customer‐facing role ...

PAM Senior Engineer / Architect (Privileged Access Management)

Location
City Of London, England, United Kingdom
Entra, Azure AD, LDAP, SAML, OAuth). Experience integrating PAM platforms with HR systems, ServiceNow, and other enterprise applications. Proficiency in scripting (PowerShell, JavaScript, BeanShell) and API integration (REST, SCIM, JDBC). Excellent communication and stakeholder management skills, with the ability to explain complex technical concepts to non‐technical audiences. ...

Power Platform Engineer

Location
City Of London, England, United Kingdom
Model Context Protocol, Agent‐to‐Agent and LLM selection (advantage). Software development experience, including proficiency in one or more of the following: Python, JavaScript, JSON, React and related scripting, .NET technologies (C#, ASP.NET), REST services, and PowerShell. Desirable: experience with Power Pages. EU Characteristics that can spell success ...