Job Title: Full Stack Principal Engineer Location: Block 23 What you'll do: We are looking for a highly skilled Full Stack Principal Engineer with expertise in designing, developing, and optimizing high-volume and high-performance applications. This role requires deep knowledge of front-end and back-end technologies, microservices architecture, APIs, and cloud-based database management. The ideal candidate will have experience in managing SQL and NoSQL Azure-managed databases (Azure SQL and Azure Cosmos DB) and will play a key role in ensuring application security, scalability, and reliability.

You'll provide SME expertise in your respective domain as well as adjacent domains to ensure solutions are safe, secure, compliant and reliable. You'll identify development and support needs as well as take on large and complex design responsibilities supporting project tasks. You'll also engage with project and business sponsors refining requirements and objectives of targeted solutions. As a Principal Engineer I, you also facilitate dialogue and activities, and work to ensure team collaboration including teams outside of your domain. You'll develop effective presentations and narratives for IT audiences. In this role, you'll also develop the technical skills of one more junior engineers. Architect, design, and develop high-performance, high-volume payment channel applications with a focus on security, scalability, and reliability. Lead front-end development using AngularJS, HTML, CSS, ensuring responsive, efficient, and intuitive user interfaces. Implement advanced .NET backend development concepts, including asynchronous programming, multithreading, dependency injection, and API optimizations. Design and manage RESTful and GraphQL APIs, ensuring rate limiting, authentication, authorization, observability, and efficient data processing. Develop and manage microservices architecture, implementing event-driven patterns, API gateways, service discovery, and containerization. Ensure application performance optimization, including caching strategies, database indexing, and load balancing. Manage and optimize Azure SQL and Azure Cosmos DB, ensuring efficient data modeling, partitioning strategies, and query performance tuning. Implement DevSecOps best practices, including CI/CD pipelines, automated security testing, and infrastructure-as-code deployment. Integrate advanced SDLC (Software Development Life Cycle) practices to ensure high-quality code, test-driven development (TDD), and continuous integration. Strengthen application security through OWASP best practices, API security mechanisms, secure coding principles, and identity management. Work in a fast-paced, agile environment, collaborating with cross-functional teams to drive innovation and deliver payment solutions. Implement observability tools (such as AppDynamics, ELK, and Grafana) to monitor application performance and troubleshoot issues proactively. Mentor junior engineers and contribute to the overall technical excellence of the team. What you'll need: 8+ years of experience in full-stack development, with expertise in AngularJS and .NET. Bachelor's degree in related field required; Masters or MBA in related field preferred. Proven experience in developing high-volume, high-performance applications for payment channels or financial services. Strong hands-on experience with Azure SQL and Azure Cosmos DB, including query optimization and partitioning strategies. Expertise in designing and managing APIs and microservices architecture with advanced security and scalability considerations. Deep understanding of application security, DevSecOps, and secure coding practices. Experience with modern SDLC and Agile methodologies, CI/CD pipelines, and automated deployment strategies. Strong troubleshooting and debugging skills, with expertise in performance monitoring and tuning. Excellent communication and leadership skills, with the ability to mentor engineers and drive innovation. Previous leadership experience preferred. Advanced to expert knowledge of general Financial Services or Banking is preferred. Advanced to expert knowledge of applicable regulatory and legal compliance obligations, rules and regulations, industry standards and practices. Benefits you’ll love: We offer all the important things you'd want — like competitive salaries, an ownership stake in the company, medical and dental insurance, time off, a great 401k matching program, tuition assistance program, an employee volunteer program, and a wellness program. In addition, you’ll have the opportunity to bolster your business knowledge, learning the ins and outs of how successful companies operate and manage their finances, giving you invaluable hands-on experience to help grow your career!