About

I’m a hands-on CTO, technical advisor, and cloud architect who thrives on solving complex challenges and delivering tangible results. With over two decades of experience spanning startups, scale-ups, and leading financial institutions like Goldman Sachs, Credit Suisse, HSBC, and Deutsche Bank, I’ve served as a fractional CTO, architect, VP of Engineering, and lead developer, seeing it all, building it all, and learning a ton along the way. My passion lies in connecting your business goals with the right technology and making sure you see real, tangible results. I also offer technical consulting and advisory services for specific projects.

I’m a builder at heart. I love diving into complex technical challenges and turning your business needs into robust, high-performing solutions. For example, I reduced signal generation time from 90 minutes to 6 minutes at a FinTech startup, representing a 15x performance improvement. Think of me as your hands-on architect and engineer, ready to lead your engineering team or consult on your most challenging projects.

I speak fluent code (in many dialects!). From Python and Java to C++, JavaScript, Go, R, and more, I’m proficient in a wide range of programming languages. This means I can choose the perfect tool for the job, every time, whether it’s building a next-generation risk calculation engine in the cloud (as I did at HSBC) or developing a greenfield risk management system for stock borrow loan (Credit Suisse).

While the cloud is my playground (AWS, GCP, and Azure), I’m equally adept at building and optimizing high-performance on-premise systems. I’ve plugged critical security holes in GCP infrastructure and configured secure PaaS infrastructure using IAM, firewalls, and subnets. I’ll help you find the right balance for your business needs, whether it’s cloud, on-premise, or a hybrid approach. My experience includes building and maintaining high-performance trading systems at UBS and Deutsche Bank, handling millions of transactions daily.

Beyond the tech, I’m a firm believer in collaboration and transparency. I love building strong teams, sharing knowledge, and helping others grow. As a director of technology, engineering manager, and lead developer, I’ve seen firsthand the importance of a strong team and a positive work environment.

I’d love to hear about your company and how I can help you achieve your goals. Whether you need a chief technology officer, a startup advisor, or a seasoned technical consultant, I’m here to help.

Contact me at hello@sanj.dev