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Mar 1, 2026

Frontend Engineer – Real‑Time Traffic Monitoring & CRM‑Style Customer List Development for arenaflex’s Customer Data Platform (React & TypeScript)

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--- About arenaflex and the Opportunity arenaflex is a fast‑growing leader in the data‑centric technology space, delivering a cutting‑edge Customer Data Platform (CDP) that empowers businesses to harness, unify, and act on every piece of customer information across channels. Our platform ingests data from tracking pixels, live‑chat transcripts, support tickets, and custom integrations, then transforms it into a single, actionable customer profile. As part of the Foundation Team—the core group responsible for building the most critical, high‑impact modules of the CDP—you will play a pivotal role in shaping how our clients see and engage with their users in real time. Why This Role Is Unique At arenaxflex, we don’t just create features; we design experiences that drive business outcomes. As a Mid‑level or Senior Frontend Engineer, you will architect and deliver two cornerstone components: - The Traffic Section – a real‑time monitoring dashboard that visualizes visitor behavior across a website, complete with dynamic filters, live updates, and performance‑driven visualizations. - The Customer List Module – a CRM‑style interface that displays unified customer profiles, key metrics, and actionable insights, built from the ground up to be both powerful and delightfully intuitive. This is an opportunity to work with a product‑first mindset, collaborate directly with customers, and influence the roadmap of a platform that is redefining data‑driven decision‑making. Key Responsibilities In this role you will be accountable for delivering high‑quality, scalable frontend solutions that meet both technical standards and customer expectations. Your day‑to‑day duties will include: - Designing, developing, and iterating the Traffic Section using React, TypeScript, and modern state‑management patterns. - Building the Customer List module from concept to production, ensuring a seamless, CRM‑like experience for end‑users. - Crafting clean, reusable UI components with a focus on accessibility, responsiveness, and visual consistency. - Integrating frontend services with arenaxflex’s backend APIs through React Query, Redux Saga, or comparable data‑fetching solutions. - Implementing advanced filtering logic, allowing users to slice and dice data by geography, behavior, source, and custom attributes. - Writing automated UI tests using Playwright (or Cypress) to guarantee reliability across browsers and devices. - Collaborating closely with backend engineers, product designers, and fellow frontend developers in agile ceremonies, code reviews, and sprint planning. - Participating in customer discovery calls, gathering feedback, and translating real‑world use cases into actionable technical requirements. - Optimizing bundle size, load times, and runtime performance to handle high‑volume data streams without compromising user experience. - Maintaining CI/CD pipelines, monitoring build health, and ensuring smooth deployments via GitHub Actions, Webpack, and npm scripts. Essential Qualifications To thrive in this role, candidates should demonstrate the following core competencies: - Professional Experience: Minimum 3 years of hands‑on frontend development for Mid‑level; 5+ years for Senior‑level, with a proven track record of shipping React applications to production. - Technical Stack Mastery: Deep expertise in TypeScript, React (Hooks, Context API), React Query, Redux Saga (or equivalent), HTML5, and CSS3 (including modern layout techniques such as Flexbox and Grid). - Testing Acumen: Practical experience writing end‑to‑end tests with Playwright; familiarity with Cypress is a plus. - Build & CI/CD Proficiency: Comfortable configuring Webpack, Babel, npm/Yarn scripts, and automating pipelines with GitHub Actions or similar tools. - Customer Interaction Skills: Ability to join client meetings, listen actively, and convert business needs into technical user stories. - Performance‑Focused Mindset: Track record of optimizing rendering performance, reducing Time‑to‑Interactive, and implementing lazy‑loading strategies for data‑heavy UIs. - UX Sensibility: Strong commitment to accessibility (WCAG 2.1), usability testing, and delivering pixel‑perfect designs that delight users. Preferred (Nice‑to‑Have) Skills - Direct experience building CRM or CDP‑type systems, including data‑aggregation pipelines and profile management interfaces. - Advanced knowledge of frontend performance optimization techniques for large‑scale, high‑frequency data updates (e.g., virtualization, memoization, service workers). - Familiarity with data visualization libraries such as D3.js, Recharts, or VisX for creating real‑time dashboards. - Exposure to GraphQL and Apollo Client as alternative data‑fetching mechanisms. - Contributions to open‑source projects or a public portfolio demonstrating complex UI work. Core Skills & Competencies for Success - Problem‑Solving: Ability to decompose ambiguous requirements into concrete, testable features. - Collaboration: Proactive communication with cross‑functional teams, fostering a culture of shared ownership. - Adaptability: Comfort working in a fast‑moving product environment where priorities shift based on market feedback. - Attention to Detail: Commitment to delivering high‑quality code, thorough documentation, and consistent UI polish. - Continuous Learning: Eagerness to stay current with emerging frontend trends, tools, and best practices. Career Growth & Learning Opportunities at arenaxflex arenaxflex invests heavily in the professional development of its engineering talent. As you progress, you can expect: - Access to a budget for conferences, workshops, and online courses (e.g., React Advanced Patterns, Frontend Performance Mastery). - Mentorship programs pairing you with senior architects and product leaders to accelerate skill acquisition. - Opportunities to lead feature teams, influence product strategy, and transition into staff‑engineer or engineering‑management tracks. - Cross‑functional projects that expose you to backend architecture, data engineering, and product design. - A culture that celebrates internal hackathons, innovation sprints, and community‑driven knowledge sharing. Work Environment & Culture Our workplace is built around trust, autonomy, and impact: - Remote‑First Flexibility: While we have a modern headquarters, we empower you to work from anywhere, with occasional on‑site collaboration days. - Inclusive Team Dynamics: A diverse, global team where every voice is heard, and inclusive decision‑making is a core value. - Outcome‑Driven Metrics: Success is measured by delivering customer value, not by hours logged. - Health & Well‑Being: Comprehensive mental‑health resources, wellness stipend, and flexible PTO policies. - Modern Tooling: State‑of‑the‑art development environments, ergonomic hardware, and a collaborative Slack/Discord community. Compensation, Perks & Benefits arenaxflex offers a competitive total‑reward package designed to attract top talent: - Base salary aligned with market benchmarks for Mid‑level and Senior engineers. - Performance‑based annual bonuses and equity grants to share in the company’s success. - Health, dental, and vision insurance with generous employer contributions. - Retirement savings plan (401k) with matching contributions. - Professional development allowance, conference sponsorship, and access to premium learning platforms. - Paid parental leave, family‑care support, and generous vacation policy. - Company‑wide retreats, virtual team‑building events, and a culture of celebration. How to Apply If you are passionate about building high‑impact frontend experiences, love translating complex data into intuitive user interfaces, and thrive in a collaborative, customer‑centric environment, we want to hear from you. Join arenaxflex’s Foundation Team and help shape the future of unified customer data. Take the next step in your career—apply today and become a key architect of the arenaxflex Customer Data Platform!