Contrast Security Belfast (Or Remote Northern Ireland) Full-time

Contrast Security Named One of the Hottest Cybersecurity Companies in the 2024 Citizens JMP Securities LLC Cyber 66 Report 
Contrast recognized for its innovation in Runtime Security
Contrast Security is the world’s leading provider of security technology that enables software applications to protect themselves against cyberattacks, heralding the new era of self-protecting software. Contrast’s patented deep security instrumentation is the breakthrough technology that enables highly accurate assessment and always-on protection of an entire application portfolio without disruptive scanning or expensive security experts. Only Contrast has sensors that work actively inside applications to uncover vulnerabilities, prevent data breaches, and secure the entire enterprise from development to operations to production.
About the Position
Contrast is looking for a highly technical front-end engineer who is enthusiastic and proficient in CSS, Typescript, web development, and ReactJS. This person should take a holistic view of our application architecture with sincere attention to quality, performance, scalability, security, and maintainability.
Ideal candidates have a background in building highly scalable and responsive single-page applications (SPAs) using ReactJS, TypeScript and CSS.
Our engineering team has a strong spirit of entrepreneurship. Every team member has joined us because they want to be part of a high-performing team and go through the startup experience. We look for candidates who share similar goals and beliefs about the work and the team they want to be a part of.


  • Collaborate with UX, Product, and Engineering to architect elegant APIs, Data Models, and reusable JavaScript and TypeScript
  • Provide overarching design of testability and acceptance
  • Define and direct the team in the area of Performance, Scalability, and Security
  • Design and development of a rich user interface for mission-critical high-availability analytics applications using front-end technologies, including TypeScript, ReactJS, Javascript, ES6, HTML, CSS
  • Help manage and improve React components within a company-wide design system
  • Execute performance analysis and optimization of page render, data transfers, and page load optimizations
  • Participate in constant collaboration with teammates in the form of pair programming, group code reviews, and pull requests before commit
  • Work with design and product teams to build unique, jaw-dropping features
  • Give back to the Open Source Community whenever humanly possible
  • Deploys: our engineers deploy multiple times a day to our AWS infrastructure
  • Technical support: Our engineers don’t just release code in the wild. When our customers have issues, we have to jump in and give them help and participate in on-call rotations


  • You have at least 3 years of experience building modern, scalable, and high-performing front-end web applications in Enterprise or Commercial Software development
  • You have strong communication skills. You ask questions, let others know when you need help, and tell others what you need
  • You are a master of Typescript 
  • You enjoy building React functional components with reusable hooks
  • You are comfortable working with REST APIs, preferably with react-query
  • You have extensive HTML5 and CSS3 experience, preferably with CSS-in-JS libraries like emotion/CSS
  • You have an eye for quality and use tools/frameworks like Jest, React Testing Library, Cypress, Cucumber, Prettier, JUnit, etc.
  • Experience working in Enterprise or Commercial Software development
  • Your code is clean, your designs are elegant, and you are constantly refactoring
  • You own your work. Whether a nasty bug or an awesome feature, you put your name on every line of code
  • We are focused on building a diverse and inclusive workforce. If you’re excited about this role, but do not meet 100% of the qualifications listed above, we encourage you to apply.

What We Offer:

  • A fun and dynamic environment where you work with other like-minded people on products which make a real difference to the security of our customers
  • The onboarding, training, and tools to allow you to excel from day one
  • A team who are generous with their knowledge and time, who work collaboratively and provide each other a platform to succeed 
  • A competitive salary package that includes stock options