Senior .Net Software Engineer (Full-Stack / Mobile)

Job description: Own end-to-end technical delivery of digital banking products across mobile and web, from architecture to deployment. Build, test, and ship features rapidly by leveraging AI development tools as core engineering infrastructure. Design APIs, data models, and scalable systems while implementing high-quality features from design specs in close collaboration with product and design teams. Write and review code using AI-assisted tools, and ensure strong automated test coverage (unit, integration, E2E). Manage deployments via CI/CD pipelines, feature flags, and staged rollouts, while maintaining production reliability, security, and on-call ownership. Contribute to sprint planning with realistic estimates and technical feasibility input. Requires strong proficiency in mobile (React Native or Swift/Kotlin) and backend (TypeScript/Node.js or Python), along with cloud platforms (AWS/Google Cloud Platform), databases (PostgreSQL/DynamoDB), and API design (REST/GraphQL). Experience with CI/CD, infrastructure-as-code, and security standards (OAuth2, encryption, PCI-DSS) is essential, along with integrations to banking/payment APIs (Plaid, Stripe, Galileo, Marqeta). Strong architectural judgment, ability to work independently in ambiguous environments, and clear communication with non-technical stakeholders are critical. Must own quality without reliance on dedicated QA and collaborate closely on implementation details. Ideal candidate has 6-10 years of experience, including fintech or banking, and a track record of shipping consumer-scale mobile products. Should be capable of delivering full features end-to-end within a sprint and deeply understand security and compliance requirements. Fluency with AI coding tools (e.g., Cursor, Copilot, Claude Code, ChatGPT) is expected to accelerate development, testing, and system-wide improvements.