Explore opportunities as a React Developer, a role experiencing high demand within the tech sector. React Developers build user interfaces using the React 305 React Developer jobs in the United Kingdom
React UI Developer
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React UI Developer
Posted today
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Job Description
React UI Developer
Posted 2 days ago
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Job Description
HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13+ billion.
UI ReactJS Developer role
• Extensive knowledge of React JS, JavaScript, Web 2.0 and solid understanding of Object-Oriented Principles.
• Demonstrated hands on experience using Java or JavaScript and experience designing, developing and maintaining complex applications and database experience (SQL Server and/or Oracle).
• A background in creating high quality web-based user interfaces
• An understanding of how to ensure these interfaces are easy to navigate, linkable, responsive and accessible.
• Practical experience of test-driven development and constant refactoring in continuous integration environment.
• Experience with HTML, CSS, Web Service (REST), Junit (or Selenium).
• Working knowledge of OpenShift/ Kubernetes, Docker & sHelm preferable.
• Practical experience with build tools, source code control (preferably Git), and continuous integration.
React UI Developer
Posted 2 days ago
Job Viewed
Job Description
HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13+ billion.
UI ReactJS Developer role
• Extensive knowledge of React JS, JavaScript, Web 2.0 and solid understanding of Object-Oriented Principles.
• Demonstrated hands on experience using Java or JavaScript and experience designing, developing and maintaining complex applications and database experience (SQL Server and/or Oracle).
• A background in creating high quality web-based user interfaces
• An understanding of how to ensure these interfaces are easy to navigate, linkable, responsive and accessible.
• Practical experience of test-driven development and constant refactoring in continuous integration environment.
• Experience with HTML, CSS, Web Service (REST), Junit (or Selenium).
• Working knowledge of OpenShift/ Kubernetes, Docker & sHelm preferable.
• Practical experience with build tools, source code control (preferably Git), and continuous integration.
React Developer (UI Components)
Posted 4 days ago
Job Viewed
Job Description
Job Title: React Developer (UI Components)
Location: Bromley (3 days a week onsite)
Contract Type: Temporary
Rate: Circa 750/Day
Status: Inside IR35
Working Pattern: Full Time
Join Our Team!
Are you a skilled React Developer looking for an exciting opportunity in the dynamic world of finance? Do you have a passion for building and enhancing user interfaces? If so, we want to hear from you! Our client, a leading organisation in the FX Derivatives and Risk sector, is on the lookout for a talented React Developer to help create and expand their FX Options and Risk frontend application suite.
Essential Skills & Qualifications:
- Proficient in an OOP language such as Java or Python.
- Strong experience with web technologies, tools, and frameworks, including HTML, CSS, JavaScript, and React.
- Familiarity with Agile development methodologies (XP, SCRUM, Kanban) and continuous integration practises.
- Previous experience in UI design, optimisation, and development processes.
- A solid degree in Computer Science, Physics, Engineering, Mathematics, or a relevant analytical field.
- Deep understanding of algorithms, data structures, and design patterns.
- Excellent communication skills and a strong team player mentality.
- Knowledge of derivatives and options products, ideally within FX.
- Experience in developing UI applications for finance, particularly in FX or other Fixed Income/Derivatives Trading environments.
What You'll Do:
- Collaborate with a dedicated team to design and develop user-friendly UI components using React.
- Enhance the functionality and performance of existing applications, ensuring they are scalable and reliable.
- utilise your problem-solving skills to tackle complex challenges in a high-pressure environment.
- Work within an Agile framework to deliver high-quality software solutions.
Why Join Us?
- Competitive Daily Rate: Earn up to 750 per day for your expertise.
- Impactful Work: Play a key role in shaping financial applications that drive decision-making and risk management.
- Collaborative Environment: Work alongside a talented team in a fast-paced, supportive atmosphere.
- Career Growth: Opportunity to enhance your skills and advance your career in a prestigious financial organisation.
If you are excited about the opportunity to make a difference and have the skills we're looking for, don't wait-apply today! Your next big career move is just around the corner.
Apply Now!
Send your CV and a brief cover letter highlighting your relevant experience to (insert contact method). We can't wait to meet you!
Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.
React Developer (UI Components)
Posted 4 days ago
Job Viewed
Job Description
Job Title: React Developer (UI Components)
Location: Bromley (3 days a week onsite)
Contract Type: Temporary
Rate: Circa 750/Day
Status: Inside IR35
Working Pattern: Full Time
Join Our Team!
Are you a skilled React Developer looking for an exciting opportunity in the dynamic world of finance? Do you have a passion for building and enhancing user interfaces? If so, we want to hear from you! Our client, a leading organisation in the FX Derivatives and Risk sector, is on the lookout for a talented React Developer to help create and expand their FX Options and Risk frontend application suite.
Essential Skills & Qualifications:
- Proficient in an OOP language such as Java or Python.
- Strong experience with web technologies, tools, and frameworks, including HTML, CSS, JavaScript, and React.
- Familiarity with Agile development methodologies (XP, SCRUM, Kanban) and continuous integration practises.
- Previous experience in UI design, optimisation, and development processes.
- A solid degree in Computer Science, Physics, Engineering, Mathematics, or a relevant analytical field.
- Deep understanding of algorithms, data structures, and design patterns.
- Excellent communication skills and a strong team player mentality.
- Knowledge of derivatives and options products, ideally within FX.
- Experience in developing UI applications for finance, particularly in FX or other Fixed Income/Derivatives Trading environments.
What You'll Do:
- Collaborate with a dedicated team to design and develop user-friendly UI components using React.
- Enhance the functionality and performance of existing applications, ensuring they are scalable and reliable.
- utilise your problem-solving skills to tackle complex challenges in a high-pressure environment.
- Work within an Agile framework to deliver high-quality software solutions.
Why Join Us?
- Competitive Daily Rate: Earn up to 750 per day for your expertise.
- Impactful Work: Play a key role in shaping financial applications that drive decision-making and risk management.
- Collaborative Environment: Work alongside a talented team in a fast-paced, supportive atmosphere.
- Career Growth: Opportunity to enhance your skills and advance your career in a prestigious financial organisation.
If you are excited about the opportunity to make a difference and have the skills we're looking for, don't wait-apply today! Your next big career move is just around the corner.
Apply Now!
Send your CV and a brief cover letter highlighting your relevant experience to (insert contact method). We can't wait to meet you!
Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.
React Developer
Posted today
Job Viewed
Job Description
Purpose of Role: To be a member of the Front End Engineering team to develop, support and maintain technology solutions for clients, partners and internal Remarkable solutions. The role will also work with other members of the wider Engineering team in taking technical responsibility and ownership of elements of solution delivery.nKey Accountabilities
Implementing Front End related technologies for Sitecore (and associated technologies) software solutionsnCollaborating effectively with Sitecore Engineers, QA Engineers, Business Analysts, DevOps Engineers and other members of the wider Engineering and agency teamnAccountable for the timely and technical quality delivery on Front End related elements/phases for software development projects assignednEnsuring technical implementation and delivery processes (i.e. Unit testing, Source control, Coding Standards) and technical documentation are followed, improved and continuously evolvednBuilding reusable components and front-end libraries for future usenTranslating designs and wireframes into high quality codenFollowing industry standards and best practices for Front End development, specifically for React developmentnTo accurately record all hours worked against the appropriate client and report any work requests to the Technical Lead and/or CTOnIn all dealings with clients and suppliers and colleagues to be professional, helpful respectful, innovative, creative and at all times to act in the best interests of RemarkablenWe would expect all of our team members to adhere to and promote our company core values. To take responsibility for the quality and presentation of your own work and environment. To be always looking for new avenues and opportunities for Remarkable.nWe also expect all team members to promote equality of opportunity, be committed and professional at all times, and to comply with the company’s health and safety policy.nTo be open and interested in new technology and methods of delivering the company’s products and services, and to continually develop personal technical skills and to challenge and stretch boundaries.nSkills and Competencies
To have an excellent knowledge of ReactJSnStrong background in software development.nKnowledge of state management frameworks (e.g. Redux, Flux, VueX, Realm)nAppreciation of React design patterns and understanding of their usenFamiliarity with Front end unit testing tools e.g. Jasmine, Jest, MochaJSnKnowledge of task runners (Grunt, Gulp, Webpack: Gulp is preferred, MSBuild)nSitecore 9/10 development experience would be of huge benefitnSource control - Git and GitflownIDEs - Visual Studio Code would be advantageousnAgile, Scrum, DevOpsnPrevious Experience and Skills
Developing enterprise grade scale website/web applications within a large delivery project/team using React and associated technologiesnYou will need to have a sound knowledge of design and design processes & the full software development lifecyclenYou will have good defect fixing experience – working independently to identify and resolve issues before delivery and testing functionality after the initial fixnYou will be able to build reusable code and libraries for future use, ensure technical feasibility of UI/UX designs, optimize application for maximum speed and scalability to back endnSeniority level
AssociatenEmployment type
Part-timenJob function
Production and Information TechnologynIndustries
Marketing Services and Internet Marketplace PlatformsnReferrals increase your chances of interviewing at Remarkable by 2xnLondon, England, United Kingdom
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Frontend React Developer
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Role Description:
We are seeking an experienced and passionate Senior Frontend React UI Developer to build out our front-end web application, which will allow the users to create a graphical model interactively and collaboratively, view models, upload data and run models on that scenario data, as well as visualizing sampling results.
Over the past year, we have built out the functionality to present the probabilistic graphical network model, allow the user to configure the model for sampling, and view a rich set of results, with the ability to compare different runs, and view sampling results per node and mult-node.
However, the graphical network model is still built off-platform. We are currently building out a sub-application which allows the modelling team to collaboratively build the model using web-sockets, and load that into the existing system – think a multi-user Google Docs or Office 365 interactive session.
We also want to build out screens which allow the user to connect time-series data to a node, and load the time-series into the system, calibrate the model, as well as embellish the functionality we currently offer in the system.
You will collaborate with other members of the team and define interface components required and be responsible for building out custom React components, and making changes as required. You will have influence on both the design and implementation, to participate in code reviews and ticket prioritisation.
Responsibilities:
Work with the wider team to determine UI features required for development and their functional requirements in sprint and planning based on business requirement.
Experiment and develop custom high quality UI components to implement the model builder, result visualization and data catalogue components.
Integrate UI components against backend API functionality, and propose backend changes
Deploy Front End components using Infrastructure as Code
Engage in cross-team project meetings/code reviews/demos in an agile environment
What we’re looking for:
Expert in
ReactJS
and vanilla
Typescript , NPM, Vite or alternatives
Strong knowledge of web-sockets (socket.io / wss)
Strong proficiency in building data visualizations and data flow (we need to allow users to create and edit base model graphs (DAGs)) –
Dagre
or
ReactFlow
(or similar alternatives) and creation of custom UI componentry.
Experience in creating custom charts (e.g.
Chart.js, d3.js ) to show sensitivity, compare timeseries data and sampling results
Interact with the RESTful API that we develop to trigger jobs asynchronously and retrieve sampling results from the storage layer
Knowledge of how to test the developed front-end componentry
Interested in shaping the backend Python API or becoming involved in full stack development.
Desired/Obtained Qualifications and experience:
Some general knowledge of Bayesian networks or probability would be helpful
Experience working closely with data scientists and other stakeholders, not just developers, and be comfortable demoing their work
The product will be very iterative in terms of feature set and technologies, so needs to be comfortable with unknowns and evolving, sometimes vague requirements and tickets
Knowledge of Python (we run system components in dockerized containers to not need to deploy all of the time)
Familiarity with Docker
Strong knowledge of Git and Gitlab CI/CD
Excellent communication in a geographically distributed team – innovative and inventive, able to pair program and collaborate
BS/MS Computer Science/Engineering
About S&P Global Market IntelligencenAt S&P Global Market Intelligence, a division of S&P Global we understand the importance of accurate, deep and insightful information. Our team of experts delivers unrivaled insights and leading data and technology solutions, partnering with customers to expand their perspective, operate with confidence, and make decisions with conviction.
For more information, visit the following website: In It For You?nOur Purpose:
Progress is not a self-starter. It requires a catalyst to be set in motion. Information, imagination, people, technology – the right combination can unlock possibility and change the world. Our world is in transition and getting more complex by the day. We push past expected observations and seek out new levels of understanding so that we can help companies, governments and individuals make an impact on tomorrow. At S&P Global we transform data into Essential Intelligence, pinpointing risks and opening possibilities. We Accelerate Progress.
Our People:
We’re more than 35,000 strong worldwide—so we’re able to understand nuances while having a broad perspective. Our team is driven by curiosity and a shared belief that Essential Intelligence can help build a more prosperous future for us all. From finding new ways to measure sustainability to analyzing energy transition across the supply chain to building workflow solutions that make it easy to tap into insight and apply it. We are changing the way people see things and empowering them to make an impact on the world we live in. We’re committed to a more equitable future and to helping our customers find new, sustainable ways of doing business. We’re constantly seeking new solutions that have progress in mind. Join us and help create the critical insights that truly make a difference.
Our Values:
Integrity, Discovery, Partnership
At S&P Global, we focus on Powering Global Markets. Throughout our history, the world’s leading organizations have relied on us for the Essential Intelligence they need to make confident decisions about the road ahead. We start with a foundation of integrity in all we do, bring a spirit of discovery to our work, and collaborate in close partnership with each other and our customers to achieve shared goals.
Benefits:nWe take care of you, so you can take care of business. We care about our people. That’s why we provide everything you—and your career—need to thrive at S&P Global.
Our benefits include:
Health & Wellness: Health care coverage designed for the mind and body.
Flexible Downtime: Generous time off helps keep you energized for your time on.
Continuous Learning: Access a wealth of resources to grow your career and learn valuable new skills.
Invest in Your Future: Secure your financial future through competitive pay, retirement planning, a continuing education program with a company-matched student loan contribution, and financial wellness programs.
Family Friendly Perks: It’s not just about you. S&P Global has perks for your partners and little ones, too, with some best-in-class benefits for families.
Beyond the Basics: From retail discounts to referral incentive awards—small perks can make a big difference.
For more information on benefits by country see:
a general benefits site without links.
Diversity, Equity, and Inclusion at S&P Global:
At S&P Global, we believe diversity fuels creative insights, equity unlocks opportunity, and inclusion drives growth and innovation – Powering Global Markets. Our commitment centers on our global workforce, ensuring that our people are empowered to bring their whole selves to work. It doesn’t stop there, we strive to better reflect and serve the communities in which we live and work, and advocate for greater opportunity for all.
Equal Opportunity Employer
S&P Global is an equal opportunity employer and all qualified candidates will receive consideration for employment without regard to race/ethnicity, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, marital status, military veteran status, unemployment status, or any other status protected by law. Only electronic job submissions will be considered for employment.
If you need an accommodation during the application process due to a disability, please email and your request will be forwarded to the appropriate person.
US Candidates Only:
The EEO is the Law Poster describes discrimination protections under federal law. Pay Transparency Nondiscrimination Provision -
Senior React Developer
Posted 13 days ago
Job Viewed
Job Description
Senior React Developer required by a successful technology company whose office is in Staines.
Hybrid working - 3 days per week in the office
The successful Senior React Developer is likely to have a relevant degree and commercial experience in a similar role. The Senior Software Developer will join an experienced team developing modern interactive user interfaces using React with TypeScript.
Key experience
- React
- TypeScript
- JavaScript
Experience in any of the following areas would be advantageous but is not a prerequisite
- Good software engineering principles eg Version control/Git, issue tracking, documentation etc
- Node.js
- Front end development tools and libraries like jest, rollup etc
- Experience with connected devices
- Web / UX design appreciation
- Figma or similar
- Full stack software development
If you are seeking a role of this nature, please get in touch for more information.
Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
Senior React Developer
Posted 13 days ago
Job Viewed
Job Description
Senior React Developer required by a successful technology company whose office is in Staines.
Hybrid working - 3 days per week in the office
The successful Senior React Developer is likely to have a relevant degree and commercial experience in a similar role. The Senior Software Developer will join an experienced team developing modern interactive user interfaces using React with TypeScript.
Key experience
- React
- TypeScript
- JavaScript
Experience in any of the following areas would be advantageous but is not a prerequisite
- Good software engineering principles eg Version control/Git, issue tracking, documentation etc
- Node.js
- Front end development tools and libraries like jest, rollup etc
- Experience with connected devices
- Web / UX design appreciation
- Figma or similar
- Full stack software development
If you are seeking a role of this nature, please get in touch for more information.
Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.