Roger Jacob

I'm Roger — a full stack engineer and founder who independently conceived, designed, and shipped Nexpenz, a production-grade AI-powered personal finance app for iOS, Android, and the web. Built solo with no team or external funding, Nexpenz took me from Figma to the App Store end to end, and that experience shaped how I think about engineering more than anything else. With a background in Physics and a Master's in Computer Application, I approach every layer of the stack with a systems-level mindset and a bias toward building things that actually work.

One early challenge during my college time, maintaining a local business website, proved to be a pivotal turning point. It threw me into the deep end, but instead of drowning, I emerged with a newfound passion for crafting user-friendly online experiences.

🌍 Remotely Your Way: While collaborating effectively across teams is something I excel at, I prefer the flexibility and focus that comes with working remotely. With years of experience working remotely, I'm well-versed in communication tools, time management techniques, and maintaining a productive remote work environment. Whether you have a fully remote team or just appreciate flexibility, I can seamlessly integrate and contribute as a valuable member.

👨‍💻 The Full Stack: React and React Native are where I'm most at home on the frontend — but over the years I've pushed well beyond that. Building Nexpenz solo forced me to own every layer: designing GraphQL APIs, setting up AWS infrastructure, building CI/CD pipelines, handling production deployments with real monitoring and alerting. More recently I've gone deep into AI — building agentic systems, RAG pipelines, and MCP servers that connect live user data to LLMs. TypeScript, Next.js, Redux, and Mantine UI are daily tools, but it's the end-to-end ownership — from schema design to App Store submission to AI integration — that defines how I engineer.

🙋🏻‍♂️ Collaboration is my fuel: Teamwork makes the dream work! Working alongside designers, backend developers, and stakeholders is where I truly thrive, leveraging open communication and a collaborative spirit to turn ideas into reality. My experience at Outliant further solidified this collaborative approach, and I relish the opportunity to learn from and contribute to diverse teams. But I'm more than just a team player – independent exploration and a never-ending quest for knowledge drive me forward.

📚 The learning curve is my friend: Technology never sleeps, and neither do I. I'm constantly exploring new tools, patterns, and frameworks to stay ahead and sharpen my craft. From experimenting with agentic AI systems and MCP servers to staying current on cloud infrastructure and performance optimization, I thrive on continuous improvement. I actively follow emerging trends in AI-powered development — using tools like Claude Code daily — and find ways to apply them in real-world products. These explorations fuel my passion to build impactful, intuitive solutions that solve real problems.

🎵 Beyond the Keyboard: When I'm not crafting digital solutions, you'll find me immersed in the world of music, letting captivating melodies whisk me away. Or, perhaps I'm unwinding with a thrilling movie, relishing the suspense and edge-of-your-seat moments. And let's not forget the sweet side of life – I have a deep appreciation for homemade cakes and cookies 🍪, indulging in their deliciousness. Also I'm a passionate traveler 🚗, fueled by a constant desire to explore new places and cultures.

💻 The next chapter: I'm looking for opportunities to build, ship, and scale — whether that's joining a team tackling ambitious problems or taking on contract work where I can make an immediate impact. If you're looking for a full stack engineer who can own a product end to end, let's connect! 🤝🏻