At a Glance
- Tasks: Design and develop high-performance front-end applications using React or Angular.
- Company: Join MARGO, a tech-native consultancy in the heart of London.
- Benefits: Competitive salary, tailored career paths, and a supportive work environment.
- Other info: Collaborative culture with opportunities for mentoring and growth.
- Why this job: Work on complex UI platforms that impact real-time trading and decision-making.
- Qualifications: Expertise in either React or Angular and strong front-end development skills.
The predicted salary is between 60000 - 80000 £ per year.
Join MARGO in the UK (London) – Permanent & Contracting Opportunity. MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We operate in complex Front Office and Risk environments where user interfaces are critical components of trading, risk and decision-making systems. Our consultants design and build high-performance, real-time and maintainable UI platforms used daily by Front Office, Risk and technology teams.
Business Context
- You will work within Front Office and Risk technology environments, contributing to the design and evolution of modern web-based user interfaces.
- Real-time trading and monitoring workflows
- Risk and P&L visualisation
- Analytics and control dashboards
- Operational and decision-support tools
The role requires strong ownership of UI architecture, performance and code quality, with close interaction with backend, production and business teams.
Role Overview
We are looking for a Front-End Developer with deep expertise in either React or Angular to work on complex Front Office and Risk UI platforms. Candidates are expected to be experts in one of the two frameworks. The role is hands-on, engineering-driven and focused on building scalable, real-time and maintainable front-end applications operating under production and performance constraints.
Key Responsibilities
- Front-End Architecture & Development
- Design and develop high-performance front-end applications using React or Angular
- Own UI architecture, component design and state management
- Build data-intensive and real-time user interfaces
- Ensure scalability, maintainability and long-term evolvability of UI platforms
- Apply best practices around clean code, refactoring and testing
- Real-Time & Performance Considerations
- Develop UIs consuming real-time or near real-time data streams
- Manage high-frequency UI updates and rendering efficiency
- Optimise performance under real-time constraints
- Control latency perception, responsiveness and user experience
- Work with event-driven and streaming data sources
- Collaboration & Integration
- Work closely with backend teams to define and consume APIs
- Collaborate with production, infrastructure and QA teams
- Translate business and user needs into robust UI solutions
- Act as a technical reference on front-end topics within the team
- Quality & Engineering Standards
- Enforce high standards for code quality, testing and documentation
- Participate in code reviews and architectural discussions
- Contribute to continuous improvement of front-end practices and tooling
- Support mentoring and knowledge sharing while remaining hands-on
Technical Environment
- Core Front-End Technologies
- React OR Angular (expert level – one is mandatory)
- TypeScript and modern JavaScript
- State management (Redux, NgRx or equivalent)
- HTML5, CSS3 and modern styling approaches
- Component-based architecture and modular design
- Real-Time & Performance Constraints
- User interfaces consuming real-time or near real-time data
- High-frequency UI updates and data refresh mechanisms
- Performance optimisation under real-time constraints
- Management of rendering efficiency, responsiveness and latency perception
- Interaction with event-driven and streaming data sources
- Valued Front-End Exposure
- Real-time UI patterns (WebSockets, streaming APIs or equivalent)
- Data grids and complex visual components
- Performance profiling and optimisation techniques
- Modern build tools and frameworks (Vite, Webpack or equivalent)
- Unit and integration testing frameworks
- Supporting Technologies (Context)
- API-driven architectures
- Authentication and authorisation mechanisms (SSO, JWT, OAuth or similar)
- CI/CD pipelines and version control systems
- Interaction with backend systems and databases
Required Experience & Skills
- Essential
- Strong experience as a Front-End Developer on complex web applications
- Expert-level proficiency in either React or Angular
- Solid understanding of front-end architecture and design patterns
- Experience building scalable and maintainable UI platforms
- Strong attention to performance and user experience
- Ability to work in demanding Front Office or Risk environments
- Excellent communication and collaboration skills
- Valued (but not restrictive)
- Exposure to Front Office, Risk or real-time systems
- Experience working on data-intensive or analytical UIs
- Familiarity with real-time communication patterns
- Mentoring or technical leadership experience
Why Join MARGO
- Access to complex Front Office and Risk UI platforms
- Strong emphasis on engineering quality and clean front-end architecture
- Real-time, performance-sensitive UI challenges
- Human-sized consultancy with close support and long-term focus
- Long-term career opportunities across engineering and architecture
Front-End Developer – React or Angular (Front Office & Risk Systems) employer: Dormont Manufacturing Co
MARGO is an exceptional employer for Front-End Developers, offering a unique opportunity to work on complex, high-performance UI platforms within the dynamic financial services sector in London. With a strong emphasis on engineering quality and tailored career paths, employees benefit from a supportive, human-sized consultancy culture that fosters collaboration and professional growth, while tackling real-time, performance-sensitive challenges that make a meaningful impact on trading and risk decision-making.
StudySmarter Expert Advice🤫
We think this is how you could land Front-End Developer – React or Angular (Front Office & Risk Systems)
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Dormont Manufacturing Co or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Dormont Manufacturing Co.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Dormont Manufacturing Co.
✨Explore Job Boards Specifically for Tech Roles
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We think you need these skills to ace Front-End Developer – React or Angular (Front Office & Risk Systems)
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Dormont Manufacturing Co.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Dormont Manufacturing Co and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Dormont Manufacturing Co
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Dormont Manufacturing Co uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
