Frontend Engineer

About Addi We are a leading financial platform, building the future of payments, shopping, and banking—a world where consumers and merchants can transact effortlessly and grow together. Today, we serve over 2 million customers and partner with more than 20,000 merchants, making Addi Colombia’s fastest-growing marketplace. With a state-of-the-art, technology-first approach, we provide banking solutions (deposits, payments, unsecured credit) and commerce services (e-commerce, marketing), bridging the financial gap for millions and redefining how people experience financial freedom. As the country’s leading Buy Now, Pay Later provider, we have secured regulatory approval to operate as a bank, unlocking even greater opportunities for our customers. In the past year, we have also achieved profitability, reinforcing the strength of our business model and our ability to scale sustainably. Our mission has earned the trust of world-class investors, including Andreessen Horowitz, Architect Capital, GIC, Goldman Sachs, Greycroft, Monashees, Notable Capital, Quona Capital, Union Square Ventures, Victory Park Capital, and more, who back our vision for the future. With their support, we are not just growing—we are transforming Latin America’s financial ecosystem and shaping the next generation to shop, pay, and bank in Colombia. But what truly sets us apart is how we build. We are a conscious company, driven by deep experience in scaling technology, services and products, and we live by our values every day. About The Role This is where you come in. Below, you’ll find what this role is all about—the impact you’ll drive, the challenges you’ll tackle, and what it takes to thrive at Addi. If you’re ready to be part of something big, keep reading. What We’re Looking For Technical ExpertiseExperience building user interfaces using well-structured HTML, CSS, and modern JavaScript frameworks, specifically React JS and React Native.Experience in developing components with Typescript.Proven ability to build, develop, and maintain unit, component, and end-to-end tests to ensure feature reliability.UX/UI Design Foundations: Good understanding of UX/UI design principles like user centered design, responsive design, consistency, simplicity, etc.Familiarity with integrating AI/ML APIs (e.g., OpenAI, LLMs, recommendation engines) into frontend applications. Understanding of how to consume and optimize AI-driven features within modern JS frameworks (React, Vue, etc.).Strong grasp of frontend architecture patterns (component-driven design, micro-frontends, state management at scale). Deep knowledge of performance optimization, code splitting, and building maintainable, scalable codebases.Curiosity and Continuous Learning MindsetStrong desire to learn and stay updated with new technologies, tools, and best practices.Active participation in self-learning and problem-solving on their own.Interest in exploring new approaches or techniques, especially in a dynamic environment.Demonstrates exceptional initiativeTakes responsibility for delivering impactful projects end-to-end, from conception to post-deployment support.Deliver high-quality, creative solutions at lightning speed.Anticipated technical challenges and proposed effective solutionsEffective CommunicationAbility to communicate technical ideas clearly to both technical and non-technical team members.Strong listening skills to understand the needs and requirements of other teams, such as product or UX.Adaptability and resilience in a dynamic startup-product environments:Outstanding ability to thrive in a fast-paced, constantly changing environment, balancing immediate results with long-term strategic planning.Ability to adapt to changes in project requirements or team needs.Willingness to learn and adopt new technologies or tools as the team or company requires.Outstanding cross-functional collaboration (nice to have)Ability to collaborate effectively with other engineers, product managers, and designers to align technical solutions with user needs and business strategy.Adaptability to work on projects with different approaches, technologies, and workflows.Strong product/business acumen (nice to have)Understanding the importance of creating solutions that provide real value to the end user.Deep understanding of business goals and how technical solutions align with and drive these objectives.Ability to prioritize work effectively to deliver the highest impact for users and stakeholders. Why join us? Work on a problem that truly matters – We are redefining how people shop, pay, and bank in Colombia, breaking down financial barriers and empowering millions. Your work will directly impact customers' lives by creating more accessible, seamless, and fair financial services.Be part of something big from the ground up – This is your chance to help shape a company, influencing everything from our technology and strategy to our culture and values. You won’t just be an employee—you’ll be an ownerUnparalleled growth opportunity – The market we’re tackling is massive, and we’re growing faster than almost any fintech lender at our stage. If you’re looking for a high-impact role in a company that’s scaling fast, this is it.Join a world-class team – Work alongside top-tier talent from around the world, in an environment where excellence, ownership, and collaboration are at the core of everything we do. We care deeply about what we build and how we build it—and we want you to be a part of it.Competitive compensation & meaningful ownership – We believe in rewarding our talent. You’ll receive a generous salary, equity in the company, and benefits that go beyond the basics to support your growth. How The Hiring Process Looks Like We believe in a fast, transparent, and engaging hiring experience that allows both you and us to determine if there's a great fit. Here’s what our process looks like: Step 1: People Interview (30 min) A conversation with a recruiter to get to know you, your experience, and what you're looking for. We’ll also share more about Addi, our culture, and the role.Step 2: Initial Interview (45-60 min) A more in-depth conversation with the engineering manager, where we explore your skills, experience, and problem-solving approach. The interview has a system design approach so prepare your self for it! We want to understand how you think and work.Step 3: Take Home Challenge (1 week) We'll send you a practical case, you'll have 1 week to develop the best code you can, using best practices to show all your skills and potential. We would love to see how you interact with the code and your ability to understand the business need and apply it into your solution.Step 4: Deep Dive Interviews (60 min each) You'll meet future colleagues and cross-functional team members to get a feel for how we work together. We’re looking for strong contributors and cultural fits, so bring your questions, too!Step 5: Co-Founder Interview If there’s a strong match, you’ll have a final conversation with our Founder to align on expectations, cultural fit and ensure mutual excitement. From there, we’ll move quickly to an offer and discuss next steps. We value efficiency and respect for your time, so we aim to complete the process as quickly as possible. Our goal is to make this experience insightful and exciting for you, just as much as it is for us. Regardless of the outcome, we are committed to always providing feedback, ensuring that you walk away with valuable insights from your experience with us.