Senior Front-End Developer
Senior Front-End Developer

Senior Front-End Developer

London Full-Time 36000 - 60000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Develop and maintain features for our cutting-edge React-based vCISO platform.
  • Company: Cynomi is a fast-growing cybersecurity startup backed by Silicon Valley VCs, leading the vCISO market.
  • Benefits: Enjoy a full-time role with opportunities for mentorship and professional growth in a dynamic environment.
  • Why this job: Join a passionate team shaping the future of cybersecurity while working on innovative technologies.
  • Qualifications: 4+ years of front-end experience with React and TypeScript; strong web tech knowledge required.
  • Other info: Be part of a global team making an impact across three continents.

The predicted salary is between 36000 - 60000 £ per year.

We are seeking a Senior Front-End Developer to join our growing in-house engineering team and work on our user-facing React-based vCISO platform. As a senior team member, you will contribute to shaping the future technical direction of our front-end codebase, deliver new features and improvements, and mentor junior colleagues. The ideal candidate will be passionate, self-motivated, with significant web development experience, capable of working in a fast-paced environment to support business success.

About us: Cynomi is a fast-growing, Silicon Valley VC-backed cybersecurity startup. Our SaaS product is used globally by hundreds of service providers. Operating across three continents, we lead the vCISO market with our AI-powered platform, enabling high-quality cybersecurity services for MSPs and MSSPs.

Key Responsibilities:

  • Develop, test, debug, and maintain features, ensuring high-quality, efficient code.
  • Research and promote new front-end technologies and methodologies to improve processes and influence architecture decisions.
  • Transform requirements and mockups into robust, high-quality code, providing technical insights and addressing constraints.
  • Collaborate with back-end developers for seamless integration.
  • Design and develop performant, scalable, accessible React components following best practices.
  • Monitor and optimize application performance.
  • Mentor and guide junior colleagues, supporting their growth.
  • Maintain code health through refactoring, optimization, and regular updates.
  • Participate in code reviews to uphold standards and quality.
  • Stay current with industry trends, contributing to team discussions on standards and innovations.
  • Contribute to sprint planning, ticket management, retrospectives, and team meetings.

Requirements:

  • BSc/MSc in Computer Science or equivalent experience.
  • At least 4 years of professional front-end experience with React and TypeScript.
  • Strong understanding of web technologies including HTML, CSS, and JavaScript (ES6+).
  • Solid knowledge of TypeScript, React core concepts, and ecosystem libraries.
  • Experience with testing frameworks like Jest/React Testing Library.
  • Proven ability to integrate with RESTful APIs.
  • Proficiency in Git and collaborative workflows.

Advantages:

  • Experience with advanced React libraries and tools like Tanstack Query and Table.
  • Knowledge of SSR frameworks like Next.js, styling solutions like Styled Components or Tailwind CSS.
  • Experience with charting libraries, form management, component libraries, and build tools like Vite.
  • Real-time data handling with WebSockets, web accessibility standards, and back-end development exposure.

Additional Details:

  • Seniority level: Mid-Senior level
  • Employment type: Full-time
  • Industry: Computer and Network Security

Senior Front-End Developer employer: Cynomi Ltd

Cynomi is an exceptional employer, offering a dynamic work environment where innovation thrives and employees are empowered to shape the future of cybersecurity. With a strong focus on professional growth, team collaboration, and cutting-edge technology, Cynomi provides its employees with the opportunity to work on impactful projects while enjoying a supportive culture that values mentorship and continuous learning. Located in the heart of Silicon Valley, employees benefit from being part of a fast-paced startup atmosphere that encourages creativity and offers unique advantages in the tech industry.
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Contact Detail:

Cynomi Ltd Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Front-End Developer

✨Tip Number 1

Familiarise yourself with the latest trends in front-end development, especially around React and TypeScript. Being able to discuss recent advancements or tools like Tanstack Query or Next.js during your interview can really set you apart.

✨Tip Number 2

Showcase your ability to mentor others by preparing examples of how you've supported junior developers in the past. This will demonstrate your leadership skills and align with the role's responsibilities.

✨Tip Number 3

Prepare to discuss your experience with performance optimisation and debugging in React applications. Having specific examples ready will help illustrate your problem-solving skills and technical expertise.

✨Tip Number 4

Engage with the cybersecurity community online. Understanding the industry and being able to speak about relevant challenges and solutions can show your passion for the field and make a strong impression.

We think you need these skills to ace Senior Front-End Developer

Proficiency in React
Strong knowledge of TypeScript
Expertise in HTML, CSS, and JavaScript (ES6+)
Experience with testing frameworks like Jest and React Testing Library
Ability to integrate with RESTful APIs
Familiarity with Git and collaborative workflows
Understanding of web accessibility standards
Experience with advanced React libraries and tools such as Tanstack Query and Table
Knowledge of SSR frameworks like Next.js
Experience with styling solutions like Styled Components or Tailwind CSS
Familiarity with charting libraries and form management
Experience with build tools like Vite
Real-time data handling with WebSockets
Mentoring and guiding junior developers
Strong problem-solving skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with React, TypeScript, and other relevant technologies mentioned in the job description. Use specific examples of projects where you've developed user-facing applications.

Craft a Compelling Cover Letter: In your cover letter, express your passion for front-end development and cybersecurity. Mention how your skills align with Cynomi's mission and how you can contribute to their vCISO platform.

Showcase Your Projects: If possible, include links to your GitHub or portfolio showcasing your work with React and any advanced libraries. Highlight projects that demonstrate your ability to mentor others and collaborate effectively.

Prepare for Technical Questions: Be ready to discuss your experience with web technologies, testing frameworks, and performance optimisation. Prepare examples of how you've tackled challenges in previous roles, especially in fast-paced environments.

How to prepare for a job interview at Cynomi Ltd

✨Showcase Your React Expertise

Make sure to highlight your experience with React and TypeScript during the interview. Be prepared to discuss specific projects where you've implemented these technologies, focusing on the challenges you faced and how you overcame them.

✨Demonstrate Problem-Solving Skills

Cynomi values candidates who can think critically and solve problems efficiently. Prepare to discuss scenarios where you've had to debug complex issues or optimise performance in your previous roles, showcasing your analytical skills.

✨Emphasise Collaboration Experience

Since the role involves working closely with back-end developers and mentoring juniors, be ready to share examples of how you've successfully collaborated in a team environment. Highlight any experiences where you facilitated knowledge sharing or supported team members.

✨Stay Updated on Industry Trends

Cynomi is looking for someone who is passionate about technology and stays current with industry trends. Be prepared to discuss recent advancements in front-end development, particularly those related to React, and how you might apply them to improve their platform.

Senior Front-End Developer
Cynomi Ltd
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