Freelance Front-End Engineer

About the job

Company Description ThreatXIntel is a startup company specializing in affordable, customized cyber security solutions for businesses and organizations of all sizes. Our experienced team provides services such as cloud security, web and mobile security testing, and DevSecOps to combat potential cyber threats. We prioritize a proactive approach by monitoring and testing clients' digital environments to identify vulnerabilities before exploitation. At ThreatXIntel, our mission is to offer high-quality, accessible cyber security services, allowing businesses to focus on their growth with peace of mind. Role Description We are seeking an experienced Freelance Front-End Engineer with strong expertise in React, Next.js, TypeScript / JavaScript, and Optimizely Headless SaaS. The consultant will act as a Subject Matter Expert (SME) for Optimizely, leading front-end design, development, debugging, and integration efforts for modern, content-driven web applications. This role requires a delivery-oriented engineer who can take projects end-to-end—from conception and design through development, testing, deployment, and production support—while collaborating effectively with global teams. Key Responsibilities • Act as a Subject Matter Expert (SME) for the Optimizely SaaS / Headless CMS platform, supporting design, debugging, and content architecture planning • Design and develop UI components using Optimizely Headless SaaS CMS • Build and maintain front-end websites using React and Next.js, integrating Optimizely SaaS content components • Advise and implement integrations between website front ends (“heads”) and the Optimizely SaaS CMS • Assist in designing user interactions and user experience flows on web pages • Ensure cross-platform optimization, including mobile device compatibility • Ensure responsive and performant web applications • Collaborate with graphic designers to implement web design features accurately • Work across time zones using tools such as Slack, Jira, and GitHub • Own projects end-to-end, from initial concept to final delivery • Code, test, and debug new and existing web applications • Create and maintain technical and application documentation • Provide weekly status reports covering completed, ongoing, and upcoming work • Work with stakeholders to translate business requirements into technical solutions • Provide production support and issue resolution as required • Perform other related duties as needed Required Skills & Experience • Strong hands-on experience with React, Next.js, TypeScript, and JavaScript • Proven experience working with Optimizely SaaS / Headless CMS • Experience integrating headless CMS platforms with modern front-end frameworks • Strong understanding of responsive design, cross-browser compatibility, and performance optimization • Experience working in Agile environments • Strong communication and collaboration skills

Requirements

• React
• Next.js
• TypeScript
• JavaScript

Preferred Technologies

• React
• Next.js
• TypeScript
• JavaScript

About the company

ThreatXIntel is a startup company specializing in affordable, customized cyber security solutions for businesses and organizations of all sizes. Our experienced team provides services such as cloud security, web and mobile security testing, and DevSecOps to combat potential cyber threats. We prioritize a proactive approach by monitoring and testing clients' digital environments to identify vulnerabilities before exploitation. At ThreatXIntel, our mission is to offer high-quality, accessible cyber security services, allowing businesses to focus on their growth with peace of mind.