Associate Full Stack Engineer

(Applications from outside of Colombia will not be considered) Lumen Dynamics is an applied AI engineering firm building the next frontier of business architecture. We design and ship AI co-workers that integrate into enterprise operations and deliver measurable results for our clients. We're all in on AWS, combining deep UX capability with senior engineering talent to get AI into production fast and keep it there. We’ve earned the trust of leaders across Consumer Products and Retail, Education, Energy, Financial Services, Healthcare, and Manufacturing and more, and earned a reputation as the nimble alternative to traditional global systems integrators. Founded in 2009, with delivery centers in Canada, the United States, Eastern Europe, and Latin America, we are smaller, faster, and more senior by design. Our teams average 15+ years of experience. We move fast, sweat the details, and build things that actually ship. Position Overview We’re looking for an Associate Full Stack Engineer to contribute to the development of web applications across both front-end and back-end. This role is ideal for an early-career engineer who is comfortable writing code, eager to take on real responsibility, and ready to grow their craft on production-grade work. In this role, you will work as a contributing member of a cross-functional team, building UI components, supporting backend services, and integrating APIs across the stack. You’ll take ownership of well-scoped tasks, learn from more senior engineers, and develop the technical instincts that come from shipping things that matter. Why This Role Matters At Lumen Dynamics, we design AI systems for a human world. Our name says it all. Robots and pencils means engineering paired with creativity, because every agent we ship has to work for real people in real workflows. That balance is baked into how we operate. Every role here contributes directly to that mission. Here, you shape how AI systems integrate into enterprise operations, how teams move at real velocity, and how products create measurable impact for clients and the people they serve. We ship production-ready AI in 30 to 45 days. That pace demands people who take ownership, lead with craft, and care deeply about what they put their name on. What You’ll Do Craft & Delivery Assist in building UI components and implementing responsive designs (e.g., React, Radix) Assist in developing and maintaining backend services under the guidance of senior engineers (e.g., C# / .NET ) Integrate APIs with front-end components and write clean, maintainable code Fix bugs, improve UI performance, and write basic unit tests for components Support database queries and data modeling (e.g., MySQL, PostgreSQL) Get hands-on exposure to frontend and backend services in React and C# / .NET as part of the client team's core stack, supported by senior engineers AI-Augmented Development Treat AI-assisted development (e.g., Claude Code, Kiro, Cursor, GitHub Copilot) as a baseline capability, integrating these tools seamlessly into your daily workflow to improve speed and efficiency . All of these are guided by senior teammates. Apply thoughtful prompt engineering and structured interaction patterns to produce reliable, maintainable code Use AI tools to support the full development lifecycle, including design exploration, implementation, testing, and documentation Stay current with the rapidly evolving AI tooling landscape, critically evaluating and adopting new tools or practices that meaningfully improve developer productivity and outcomes Collaboration & Communication Collaborate with designers, QA, and backend engineers to move work forward effectively Maintain UI documentation so the team can build on, replicate, and trust your work Participate in code reviews and team discussions, contributing your perspective and incorporating feedback Leadership & Influence Take ownership of assigned tasks and deliver end-to-end with consistency and follow-through Bring intellectual curiosity to every problem — ask good questions, explore new approaches, and stay hungry to grow your craft Approach every challenge with a solution-oriented mindset, you don't just flag problems, you come with ideas. You stay curious, keep learning, and treat every obstacle as a chance to grow. What You’ll Bring 1+ year of development experience or a closely related technical role Solid understanding of HTML5, CSS3, and responsive design principles Familiarity with at least one modern front-end framework (e.g., React, Angular) Familiarity with at least one back-end language (e.g., C#, Python, Node.js) Understanding of REST APIs, HTTP, and web services Familiarity with relational databases and basic SQL (e.g., MySQL, PostgreSQL) Familiarity with version control using Git Demonstrable usage of AI-forward tools such as Claude and Cursor You’ll Do Well Here if You Are A doer. You see something broken and fix it. You'd rather move on clarity than wait for certainty. A fast lear