14 Web Applications jobs in the United Kingdom

Application Support Engineer – Web Applications | London | Hybrid | £41K

Principle HR is partnering with a fast-growing global SaaS company to expand their Engineering Support team. In this role, you’ll be working directly with engineers from Fortune 500 companies , solving complex application issues—especially those centered around email. If you love troubleshooting, working with web technologies, and engaging with enterprise clients, this could be your next move.

What’s in It for You?

• Annual Salary up to £41,000 doe
• 12-month contract - PAYE - Inside IR35 - strong chance of full-time conversion.
• Hybrid working – 2-3 days onsite in Staines, Surrey from state-of-the-art offices.
• Exposure to cutting-edge technologies and global enterprise clients .

What You Need to Bring:

• 4+ years of customer-facing technical support experience.
• Strong troubleshooting skills—you thrive on solving complex technical issues .
• Ability to read basic Java/JavaScript code .
• Solid experience with SQL and working in Windows/Unix environments .
• Hands-on experience with web applications, REST APIs, Postman, and SOAP .
• Prior experience handling support tickets .

Next Steps?

This is a great opportunity to join a dynamic, growing team in a global tech company.

Apply now , or reach out to me, Som , at for a confidential chat.

• Develop and implement user-facing features using modern front-end frameworks.
• Build and maintain scalable backend services and APIs.
• Design and manage databases for optimal performance.
• Collaborate with UX designers to ensure seamless user experiences.
• Write clean, well-documented, and efficient code.
• Conduct code reviews and provide constructive feedback.
• Optimize applications for speed, scalability, and security.
• Participate in architectural discussions and decision-making.
• Mentor junior development team members.
• Troubleshoot and resolve bugs and performance issues.

• Bachelor's or Master's degree in Computer Science or a related field, or equivalent experience.
• 5+ years of professional full-stack development experience.
• Proficiency in front-end technologies (HTML, CSS, JavaScript, React/Angular/Vue).
• Strong experience with backend languages (Node.js, Python, Java, C#) and frameworks.
• Experience with SQL and NoSQL databases.
• Familiarity with cloud platforms (AWS, Azure, GCP).
• Understanding of RESTful API design principles.
• Excellent problem-solving and analytical skills.
• Strong communication and collaboration abilities.

• Lead the end-to-end user experience design process for web applications, from concept to launch.
• Conduct user research, including interviews, surveys, and usability testing, to gather insights into user needs and behaviors.
• Create user personas, user journey maps, wireframes, prototypes, and high-fidelity mockups.
• Develop intuitive and visually appealing user interfaces that adhere to design principles and best practices.
• Collaborate closely with product managers, developers, and stakeholders to translate requirements into effective design solutions.
• Iterate on designs based on user feedback, A/B testing, and performance data.
• Maintain and evolve design systems and style guides to ensure consistency across all products.
• Stay up-to-date with the latest UI/UX trends, tools, and technologies.
• Mentor junior designers and contribute to a culture of design excellence.
• Present design concepts and solutions to cross-functional teams and stakeholders.
• Ensure accessibility standards are met in all designs.
• Work within an agile development environment, contributing to sprints and product roadmaps.

• Bachelor's degree in Design, Human-Computer Interaction (HCI), Computer Science, or a related field, or equivalent practical experience.
• Minimum of 5 years of experience in UI/UX design, with a strong portfolio showcasing successful web application designs.
• Proficiency in design and prototyping tools such as Figma, Sketch, Adobe XD, or InVision.
• Solid understanding of user-centered design principles, usability best practices, and information architecture.
• Experience conducting user research and usability testing.
• Familiarity with front-end development technologies (HTML, CSS, JavaScript) is beneficial.
• Excellent communication, presentation, and interpersonal skills.
• Ability to work effectively in a collaborative, fast-paced environment.
• Strong problem-solving skills and a keen eye for detail.
• Experience working in a hybrid environment.

• Develop and maintain web application features using various programming languages and frameworks.
• Write high-quality, testable, and efficient code.
• Participate in code reviews and contribute to team knowledge sharing.
• Debug and resolve software defects and issues.
• Collaborate with senior developers and designers on project requirements.
• Assist in the testing and deployment of software releases.
• Learn and adapt to new technologies and development practices.

• Bachelor's degree in Computer Science, Software Engineering, or a related field; or equivalent practical experience.
• Foundational knowledge of programming languages (e.g., JavaScript, Python, Java).
• Understanding of web development concepts (HTML, CSS, JavaScript).
• Familiarity with version control systems like Git.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.
• Ability to work independently and as part of a remote team.
• Eagerness to learn and grow in a fast-paced environment.

Standort: Berlin (hybrides Arbeiten möglich)

Gestalte mit uns anspruchsvolle und moderne Webanwendungen!

Suchst du eine Rolle, in der du Verantwortung übernimmst, kreative Ideen einbringen kannst und mit einem engagierten Team zusammenarbeitest? Bei uns erwarten dich spannende Projekte und die Möglichkeit, dein Know-how gezielt einzusetzen und auszubauen.

Du übernimmst eine zentrale Rolle in der Weiterentwicklung und Neugestaltung eines komplexen und vielfältigen Websystems.

Du konzipierst und entwickelst Anwendungen mit Fokus auf Stabilität, Sicherheit und Performance.

Du unterstützt dein Team mit deinem Know-how auch bei Wartungsaufgaben und Tests – Qualität liegt dir am Herzen.

Du arbeitest eng mit anderen Entwicklern zusammen, um effiziente und nachhaltige Lösungen zu realisieren.

Sehr gute Kenntnisse in objektorientierter Programmierung mit PHP, idealerweise Erfahrung mit Symfony oder Zend Framework.

Erfahrung im Design und der Entwicklung von Backends für umfangreiche Webanwendungen, inklusive sicherem Umgang mit MySQL.

Gutes Verständnis von MVC-Architekturen und Routine im Umgang mit Git.

Erfahrung in Datenbankarchitektur und Performance-Optimierung von Abfragen.

Bonuspunkte gibt es für Kenntnisse in Frontend-Entwicklung, Systemadministration (Linux, Nginx), Docker, CI/CD-Pipelines, AWS oder Bildverarbeitungs-Toolkits – keine Pflicht, aber gern gesehen.

Du arbeitest strukturiert, eigenständig und weißt Prioritäten zu setzen.

Du sprichst fließend Deutsch oder Englisch.

Ein abwechslungsreicher Job mit spannenden technischen Herausforderungen und viel Raum für eigene Ideen.

Ein motiviertes und kollegiales Team, das Wert auf Eigenverantwortung und eine offene Zusammenarbeit legt.

Flexible Arbeitszeiten und die Möglichkeit für Remote-Arbeit / Homeoffice.

Ein moderner Arbeitsplatz im Herzen Berlins mit sehr guter Verkehrsanbindung.

Unterstützung für deine Weiterentwicklung – wir investieren gerne in Seminare und Fortbildungen.

Kostenlose Snacks, Obst, Kaffee und regelmäßige Team-Events.

Ein attraktives, wettbewerbsfähiges Gehalt.

• Review our existing PHP + Vue architecture and decide what stays, what goes, and what moves to Node/Next
• Gradually introduce modular or microservice structures only when they add real value
• Work with the CTO on strategy while confidently making your own calls

• Build and maintain in PHP/Vue for current services
• Develop new features in Node/Next
• Refactor, review, and maintain clean, consistent code

• Mentor mid-level and senior developers, run 1:1s, and map their growth paths
• Organise workflows, code reviews, and DevOps processes
• Balance urgent tasks with strategic priorities, keeping delivery smooth

• Turn user pain points into smart, technical solutions
• Partner with product managers to prioritise high-impact features
• Release MVPs quickly, gather feedback, and iterate

• Improve CI/CD pipelines and Docker usage
• Implement automated testing and service monitoring
• Make deployments fast, reliable, and drama-free

• 3–5+ years as a team lead, tech lead, or principal engineer
• Hands-on Node.js & major frontend framework experience (React/Vue)
• Proven ability to work with existing PHP codebases (Laravel/legacy)
• CI/CD, basic Docker, automated testing know-how
• Track record of building and developing teams (5–10 people)
• Strong English communication skills (Upper-Intermediate+)

• Kubernetes, Terraform, or advanced DevOps skills
• Experience leading monolith → microservices transitions
• Past CTO/startup founder perspective
• Wider tech stack knowledge for creative problem solving

• Player-Coach Role – Half coding, half leading
• Impact From Day One – Every decision you make shapes the platform’s future
• Startup Agility – Move fast, avoid unnecessary bureaucracy
• Career Growth – Scale your leadership scope as the product scales

• Review our existing PHP + Vue architecture and decide what stays, what goes, and what moves to Node/Next
• Gradually introduce modular or microservice structures only when they add real value
• Work with the CTO on strategy while confidently making your own calls

• Build and maintain in PHP/Vue for current services
• Develop new features in Node/Next
• Refactor, review, and maintain clean, consistent code

• Mentor mid-level and senior developers, run 1:1s, and map their growth paths
• Organise workflows, code reviews, and DevOps processes
• Balance urgent tasks with strategic priorities, keeping delivery smooth

• Turn user pain points into smart, technical solutions
• Partner with product managers to prioritise high-impact features
• Release MVPs quickly, gather feedback, and iterate

• Improve CI/CD pipelines and Docker usage
• Implement automated testing and service monitoring
• Make deployments fast, reliable, and drama-free

• 3–5+ years as a team lead, tech lead, or principal engineer
• Hands-on Node.js & major frontend framework experience (React/Vue)
• Proven ability to work with existing PHP codebases (Laravel/legacy)
• CI/CD, basic Docker, automated testing know-how
• Track record of building and developing teams (5–10 people)
• Strong English communication skills (Upper-Intermediate+)

• Kubernetes, Terraform, or advanced DevOps skills
• Experience leading monolith → microservices transitions
• Past CTO/startup founder perspective
• Wider tech stack knowledge for creative problem solving

• Player-Coach Role – Half coding, half leading
• Impact From Day One – Every decision you make shapes the platform’s future
• Startup Agility – Move fast, avoid unnecessary bureaucracy
• Career Growth – Scale your leadership scope as the product scales

• Assisting senior developers in coding, testing, and debugging web applications.
• Learning and applying various programming languages and frameworks such as HTML, CSS, JavaScript, Python, and React.
• Collaborating with team members through online communication tools (e.g., Slack, Microsoft Teams, Zoom).
• Participating in virtual code reviews and learning from experienced professionals.
• Contributing to the development of user interfaces and backend functionalities.
• Troubleshooting and resolving technical issues under guidance.
• Engaging in online learning modules and training sessions to enhance technical skills.
• Documenting code and project progress meticulously.