> Markdown version of [/jobs/ext/3844838-sr-to-staff-full-stack-software-engineer-fintech-startup](https://www.wearedevelopers.com/jobs/ext/3844838-sr-to-staff-full-stack-software-engineer-fintech-startup). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. to Staff Full Stack Software Engineer - Fintech Startup - **Company:** Skyrocket Ventures - **Location:** New York, NY, United States - **Experience:** Expert - **Salary:** $250,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Amazon Elastic Compute Cloud, Amazon S3, Automation of Tests, Continuous Integration, Data Integrity, Data Visualization, Relational Databases, Design of User Interfaces, Python (Programming Language), PostgreSQL, Performance Tuning, Scrum Methodology, Query Optimization, Rapid Prototyping Process, TypeScript, ReactJS, Database Optimization, Software Security, Backend, Git, Cloudformation, Amazon Relational Database Service, Containerization, Front End Software Development, Functional Programming, Docker - **Published:** October 20, 2026 - **Apply:** https://www.juju.com/job/2_166714888 ## About the Role At least 5 years (preferably more) of experience designing and implementing full-stack web applications using Python, React, and TypeScript. - Ability to thrive in small team environments and excel in rapid prototyping. - Proficiency in API integration and front-end data visualization. - Extensive experience with relational databases, particularly PostgreSQL, including schema design, query optimization, and performance tuning. - Solid understanding of AWS infrastructure, including services such as EC2, S3, RDS, Lambda, and CloudFormation. - Strong understanding of CI/CD pipelines, automated testing, and version control using Git. - Familiarity with containerization and orchestration tools like Docker and Kubernetes. - Ability to work effectively in a collaborative, agile development environment. Nice to have: - Experience working in financial systems and accounting. - Strong front-end skills with a keen product and design sense, ensuring detailed UI/UX polish. ## Description Using Python and React. Depending on your preference could be anywhere from 70% backend to 70% front end. - Reporting to the CTO and leading the development of core applications. - Collaborating withh the team to develop groundbreaking technology and address customers' financial challenges. - Design and implement robust, end-to-end production-level software to make complex data accessible through enterprise-class applications. - Collaborating with cross-functional teams and external partners to refine technical requirements and rapidly develop prototypes to assess feasibility. - Architecting and implement backend services and APIs to support front-end applications. - Optimizing database performance, ensuring data integrity, and managing relational database schemas. - Ensuring application security and data privacy by implementing best practices and adhering to regulatory requirements. - Participating in sprint planning and retrospectives to continuously improve team processes.