senior react developer jobs in Islington

You will be a confident, proactive developer who enjoys solving problems, collaborating effectively, and taking ownership of your work.

Front-End Developer - React, Typescript Location: Ipswich (Onsite, 5 days per week) Contract Duration: 7 months IR35 Status: Inside IR35 About the Role My client, a leading global tech company, is looking for an experienced Front-End Developer. This role involves rewriting existing in-house applications using TypeScript and React, ensuring they meet modern standards and deliver exceptional...

Senior Full Stack Developer – Java & React Build Products That Shape High‑Stakes Decision‑Making I have partnered with a fast-growing tech firm who are building AI powered tools used by Fortune 500 business leaders. They are enabling them to make critical decisions across the business and have reportedly been ranked as #1 in their field! They’re scaling quickly, backed by major investment, and...

Senior C# .NET Developer React, AZURE, Elastic, CouchDB / NoSQL Hybrid ( 1 day a week in office, 4 days WFH) Established, profitable company. Join a team of x5 Devs (all long term employees) - hiring x3 more. * Scalable B2B online booking & pricing system. Currently receives up to 120M transactions daily * Build New functionality * Work with others to design new architecture * Re-factor *...

Senior Dynamics 365 CE Developer Remote or Hybrid (London) Nigel Frank International are partnered with an established Dynamics 365 CRM End User who are looking for a Senior Dynamics 365 CE Developer to provide significant contributions to the design and build of enterprise solutions! Responsibilities Deliver high‑quality customisations across model‑driven apps, including forms, views, command...

Senior Full Stack Developer Contract Length: Initial 1 month with strong potential for extension Location: Remote Day rate: £600 - £700 per day outside IR35 Data Idols are working with a private equity-backed data analytics and insights business, is seeking a Full Stack Developer to lead a discovery and assessment phase across its existing product platforms. The organisation operates multiple...

We’re looking for a Senior-level Software Engineer with strong JavaScript/TypeScript skills and experience across modern web stacks. You’ll be instrumental in our transition away from Drupal as we modernise and scale our platform. Tech Stack: At least 6-8 years commercial experience with JavaScript or TypeScript and Node Exposure of Laravel and/or Python (Django or Flask a...

Development Management Implementation (DMI) Senior EngineerExperience, qualification, and soft skills, have you got everything required to succeed in this opportunity Find out below.Are you a dynamic, creative and delivery focused Highways Engineering / Transport Planning professional. Can you use your first-rate technical skills to assist Tetra Tech in a new and exciting relationship with...

You will take a lead role in building high-quality, accessible, and maintainable front-end solutions across a single-page admin platform and a progressive web application. Working closely with UX, design, and backend developers, you will help shape front-end architecture, improve performance, and mentor other engineers.

The opportunity As a Senior C++ Developer, you won’t be maintaining legacy code or adding features at the edges. You have the option to work fully remote or partically remote with access to the clients offices. You’ll be designing and building core systems that will ultimately run on millions of industrial edge devices, shaping how they authenticate, communicate, and trust one another — from the...

Ref: SAL 23206 The Skills You'll Need: EUC development with SQL, VBA, AWS RDS, Corporate banking Your New Salary: £50-£55k Permanent, Full time Start: ASAP EUC development Senior consultant - What You'll be Doing: * The Business SME will ensure operational continuity and data integrity by bridging business requirements and technical design across Loan IQ's operation and data. * The role...

You will be working on new projects on the core web platform with other great developers in the UK.

You will have the opportunity to attend regular Development team events, professional development opportunities and potentially travel overseas to their international offices if this is of interest.

Senior Developer - Active SC, Java, Oracle Up to £550 per day (Inside IR35) London / Hybrid 6 months My client is an instantly recognisable consultancy who urgently require a Senior Developer with Active Security Clearance (SC), to join a business-critical programme. Key Requirements: Proven experience working as a Senior Developer within the public sector. Active Security Clearance...

Job Title: Senior Infrastructure Developer Location: London (3-days per week on-site) Rate: Flexible dependent on experience (inside IR35) Duration: 6 months Tec Partners are working with a world-leading technology client who are currently looking for an experienced Senior Infrastructure Developer, with a strong background in infrastructure automation, Python and VMware Cloud Foundation (VCF)...

Senior Java Developer | Backend | Microservices | FinTech | London | Hybrid | £120k I'm proud to partner with a global financial organisation, creating an app that allows people in countries like Mexico, Argentina, Colombia, and Brazil manage money in digital dollars and digital euros and it’s designed to protect users from local currency devaluation and make international spending easier. The...

Senior C#. NET Developer Location: London (Hybrid) Contract: 6 months IR35: Inside IR35 Our client, a leading global investment bank, is looking for an experienced C#. NET Developer to join their team on a 6-month contract. This role is pivotal in modernising and supporting business-critical applications while contributing to greenfield development initiatives. Key Responsibilities Design,...

Senior Full Stack Developer Is this the role you are looking for If so read on for more details, and make sure to apply today. Contract Length: Initial 1 month with strong potential for extension Location: Remote Day rate: £600 - £700 per day outside IR35 Data Idols are working with a private equity-backed data analytics and insights business, is seeking a Full Stack Developer to lead a...

You will play a key role in designing, developing, and maintaining applications built using Laravel, PHP, Vue, TypeScript, MySQL, and AWS services. The position combines hands-on development with technical leadership, contributing to architectural decisions, modernisation of legacy systems, and mentoring of other developers.

I am currently working with a London-based financial services client who are actively seeking a senior Python developer to work on the development of a business critical application within the risk space. What you'll need to succeed: Extensive Python application development experience within financial services - must have. Strong API development experience. Strong experience with Django or...

I am working with a consultancy feeding into the public sector who need 2x Senior NodeJS developers to join a 6 month project. Inside IR35 Remote (1x every 6 weeks to London/ Manchester/ Newcastle office) SC eligible Around £500 per day - Node.js - Typescript - Nunjucks - AWS - Kubernetes - Containerisation - Monitoring – Prometheus, Grafana, Alert Manager - Mentor / leadership experience