• Desenvolver interfaces de usuário complexas e interativas utilizando NextJS, HTML e CSS • Garantir a responsividade e acessibilidade das aplicações para diferentes dispositivos e navegadores • Conectar o front-end com APIs RESTful para buscar e enviar dados, utilizando JavaScript/TypeScript • Garantir a correta manipulação e exibição dos dados na interface • Escrever testes unitários para garantir a qualidade e robustez do código front-end • Analisar e otimizar o desempenho das aplicações front-end para garantir uma experiência de usuário fluida • Desenvolver e manter portais web complexos, com grande fluxo de dados, que tenha responsividade e mantenha uma boa experiência de navegação do usuário

Role: Lead Frontend Engineer About interos.ai: Interos is the supply chain risk intelligence company – building the most trusted and transparent supply chains in the world. Our pioneering discovery and monitoring intelligence spans the lifecycle of supply chain risk, enabling faster and more informed threat mitigation. As the world’s first, and only, automated supplier intelligence platform, we continuously map and monitor extended supply chains at speed and scale to protect organizations from regulatory fines, unethical labor, cyber-attacks, and other systemic vulnerabilities. Interos serves a variety of commercial, government, and public sector customers around the world including a host of Global Fortune 500 companies and members of the Five Eyes nations. www.interos.ai  About the role:  As a lead frontend engineer, you will be responsible to architect our Application and ensure craftsmanship in everything we build. Candidates should have experience in highly scaled software engineering, modern and current frontend best practices, and be constantly interested in learning, sharing, and supporting others. You are also passionate about using Gen AI tools in everything we build. Successful candidates for this role will have a deep understanding of front-end web technologies including TypeScript, React, Node, Next.js, and modern micro-front end architectures. You will be passionate about up-leveling UX development capabilities within the company and you will have the passion and patience to guide teams and individual engineers through that work. You will also have an interest in leveraging AI to assist in both improving developer efficiency and in building out customer experiences based on AI. This position is an individual contributor role reporting to the Vice President of Engineering. What you will do:  - Write high-quality code that is easy to maintain and test - Build TypeScript and JavaScript client code using modern web frameworks and technologies (React + Redux) - Work with UX and Design to standardize and simplify UI development practices - Build modular/reusable UI components - Build and maintain front-end web application infrastructure - Participate in the entire development life cycle, from concept to release - Support strategic code sharing and architecture for one or more functional area - Ensure design and architecture is extensible across multiple projects, and participate in technical design and code reviews - Work cooperatively with product management and design to create features that are scalable and secure - Identify, propose, and implement process improvement to continuously increase the team's productivity and efficiency - Stay current with the latest software engineering best practices and share your findings with the team - Raise issues proactively that might impact delivery commitments - Research new features and technologies What you bring: - 8+ years of software development experience - 8+ years of web application development - Experience with modern web application technologies (TypeScript, ES6, React/Angular/VueJS, Sass/Less, Node, Next.js etc.) - BS or MS in Computer Science, a related field, or equivalent industry experience - Use of Gen AI tools to build Software Bonus points for:  - Experience building design systems and component libraries - 8+ years’ experience implementing responsive design. - 8+ years’ experience building SaaS web applications - 3+ years’ experience with web accessibility standards and practices - Experience aligning platform architecture with security and data - Experience with unit testing frameworks - Experience developing, promoting and building consensus across engineering teams - Understanding of web application design principles such as usability, performance, and security - Problem solving and troubleshooting skills - Excellent written and verbal communication skills What We Offer:  - Comprehensive health, dental & vision insurance  - 401(k) with employer match  - Flexible Time Off (FTO) + 10 paid holidays  - Wellness perks including onsite gym + Peloton room (HQ)  - Career growth opportunities in a fast-scaling company  - Employee referral bonuses and recognition programs  Compensation  - Base Salary Range: $180,000 - $200,000 USD (depending on experience and location)  - Variable Compensation: Performance-based annual bonus  - Equity: Stock options included as part of total compensation package  We believe in rewarding great work with competitive, transparent compensation. Final offer will be based on skills, experience, and geographic location.  Work Environment, Location and Travel:  This is a remote-first role open to candidates legally authorized to work in the United States. Employees may optionally work from our Arlington, VA HQ. This position may require up to minimal travel.     Equal Opportunity Employer  Interos.ai is proud to be an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees — regardless of race, religion, gender identity, sexual orientation, age, disability, or veteran status.  Accessibility & Accommodations  We are committed to providing reasonable accommodations for candidates throughout the hiring process. If you need assistance, please contact us at hr@interos.ai.

• Lead the migration from Chakra UI v2.8 to Radix UI / Base UI with shadcn and Tailwind CSS • Architect and maintain a scalable, extensible design system • Design and optimize complex React component architectures for dynamic website builder environments • Implement SSR and React Server Components using Next.js App Router • Ensure high performance across deeply nested dynamic component trees • Prevent unnecessary re-renders and optimize rendering lifecycle behavior • Design and manage scalable state architectures using Redux and/or Zustand • Model normalized state, slice-based architecture, and undo/redo systems • Define local vs global state boundaries for optimal performance • Implement drag-and-drop state handling, optimistic updates, and layout persistence • Establish strict TypeScript patterns across large UI surfaces • Design token-driven theming strategies including dark mode and brand themes • Enforce accessibility standards including ARIA compliance, keyboard navigation, and focus management • Optimize bundle size, apply code splitting, and implement lazy loading strategies • Implement virtualization and event debouncing for high-frequency UI interactions • Define frontend architectural boundaries across primitives, design system, editor logic, and runtime rendering layers • Plan and execute incremental UI migration strategies with feature flags and compatibility adapters • Define and implement testing strategies including unit, integration, visual regression, accessibility, and E2E testing • Improve developer experience through CI/CD improvements, monorepo optimization, and build performance enhancements • Maintain design system documentation using Storybook • Mentor engineers on state isolation, accessibility best practices, and scalable component APIs • Conduct architectural RFCs and review code to ensure long-term platform stability • Balance product flexibility and constraint in a complex website builder environment • Ensure backward compatibility and extensibility across evolving UI layers

• Desarrollar interfaces web modernas, escalables y centradas en el usuario • Asegurar altos estándares de calidad, performance y mantenibilidad del código • Colaborar con equipos de UX/UI, Backend y QA