Senior Frontend / Full-Stack Engineer (Web… at Truelogic · São Paulo

ABOUT TRUELOGIC At Truelogic we are a leading provider of nearshore staff augmentation services headquartered in New York. For over two decades, we’ve been delivering top-tier technology solutions to companies of all sizes, from innovative startups to industry leaders, helping them achieve their digital transformation goals. Our team of 600+ highly skilled tech professionals, based in Latin America, drives digital disruption by partnering with U.S. companies on their most impactful projects. Whether collaborating with Fortune 500 giants or scaling startups, we deliver results that make a difference. By applying for this position, you’re taking the first step in joining a dynamic team that values your expertise and aspirations. We aim to align your skills with opportunities that foster exceptional career growth and success while contributing to transformative projects that shape the future. OUR CLIENT Our client operates a leading-edge, data-driven real estate technology platform focused on the residential rental market. They are dedicated to transforming the rental experience through a smart, seamless, and transparent marketplace. By leveraging personally curated search features and high-performance web technology, they simplify the journey of finding a home, making the process more flexible and accessible for millions of users. JOB SUMMARY As a Senior Software Engineer, you will be a technical leader driving initiatives that directly impact user experience, platform performance, and conversion rates. You will own high-stakes projects end-to-end, with a specific focus on the unauthenticated and early-funnel user journey. This is a high-impact role where you will architect scalable systems using React and Next.js, implement robust experimentation strategies, and elevate the technical standards of the entire engineering organization. RESPONSIBILITIES - End-to-End Leadership: Lead the design and delivery of complex web initiatives from ideation and architectural design through rollout and iteration. - Conversion Optimization: Drive improvements in user acquisition by optimizing browsing experiences and login flows (e.g., One Tap, FedCM, social authentication). - System Architecture: Architect and implement scalable, high-performance frontend systems using React and Next.js. - Performance Engineering: Identify and execute opportunities to improve site performance, focusing on Core Web Vitals, Lighthouse scores, and advanced data-fetching strategies. - Data-Driven Growth: Define and implement A/B testing, feature flags, and progressive rollouts to inform product decisions with real-time data. - Observability & Analytics: Elevate tracking, telemetry, and error monitoring to provide deep visibility into user behavior and system reliability. - Cross-Functional Collaboration: Partner closely with Product, Design, and Data teams to shape the roadmap and prioritize high-impact work. - Platform Enhancement: Contribute to SEO strategies and content platform improvements, including CMS integrations and structured data. - Mentorship: Raise the bar for code quality and engineering practices by mentoring other engineers and improving developer experience. QUALIFICATIONS AND JOB REQUIREMENTS - Must-Have: - Experience: 5+ years of experience building modern, large-scale web applications. - Core Stack: Strong expertise in TypeScript, React, and Next.js. - Web Performance Mastery: Deep understanding of Core Web Vitals, SSR/CSR tradeoffs, caching, and Lighthouse optimization. - Growth Engineering: Proven experience designing and running A/B tests and managing gradual feature rollouts. - Data Systems: Strong experience with analytics, tracking, and telemetry systems. - Full-Stack Familiarity: Experience working across the stack (Node.js and/or Ruby on Rails) and integrating with complex APIs. - Architectural Vision: Ability to make high-level decisions that balance speed, scalability, and maintainability. Nice-to-Have: - Auth Systems: Experience with modern authentication (OAuth, Google One Tap, FedCM). - SEO: Knowledge of technical SEO best practices. - Observability: Experience with platforms like Datadog or similar error-monitoring tools. - Content Management: Familiarity with headless CMS platforms like Contentful. - DevEx: Experience improving developer tooling, documentation, and internal workflows. WHAT WE OFFER - 100% Remote Work: Enjoy the freedom to work from the location that helps you thrive. All it takes is a laptop and a reliable internet connection. - Highly Competitive USD Pay: Earn an excellent, market-leading compensation in USD, that goes beyond typical market offerings. - Paid Time Off: We value your well-being. Our paid time off policies ensure you have the chance to unwind and recharge when needed. - Work with Autonomy: Enjoy the freedom to manage your time as long as the work gets done. Focus on results, not the clock. - Work with Top American Companies: Grow your expertise working on innovative, high-impact projects with Industry-Leading U.S. Companies. WHY YOU’LL LIKE WORKING HERE - A Culture That Values You: We prioritize well-being and work-life balance, offering engagement activities and fostering dynamic teams to ensure you thrive both personally and professionally. - Diverse, Global Network: Connect with over 600 professionals in 25+ countries, expand your network, and collaborate with a multicultural team from Latin America. - Team Up with Skilled Professionals: Join forces with senior talent. All of our team members are seasoned experts, ensuring you're working with the best in your field. Apply now!