Sr Full-Stack Engineer (Python, React, PostgreSQL)

We are looking for a Senior Full Stack Software Engineer to help build and evolve internal business applications that improve operational efficiency across the organization in Mount Arlington, New Jersey. This position is suited to an experienced engineer who enjoys creating scalable tools, enabling self-service capabilities, and delivering secure solutions for technical and business stakeholders. You will play a key role in shaping modern internal platforms, connecting enterprise systems, and supporting practical use of AI-assisted development in a well-governed environment.Responsibilities:Create and enhance internal web applications and platform capabilities using modern front-end, back-end, and database technologies, including React, Python/FastAPI, and PostgreSQL.Develop reusable frameworks, starter templates, and guided tooling that allow business-focused technical users to build lightweight applications within defined governance standards.Deliver and maintain integrations, file exchange processes, and other essential software solutions that support day-to-day business operations.Introduce self-service features that streamline common requests, reduce manual support work, and improve efficiency for internal users.Connect applications with enterprise authentication and authorization services while enforcing role-based access and appropriate user permissions.Establish controls such as audit trails, lifecycle oversight, and security guardrails to support compliant and well-managed internal software.Work closely with engineering, IT, and security partners to ensure solutions align with technical standards, risk requirements, and production expectations.Contribute to architectural planning and advocate for development approaches that prioritize scalability, maintainability, and secure implementation.Support the responsible adoption of AI-enabled development capabilities to improve application delivery for both technical and non-technical users.Requirements:Bachelor’s degree in Computer Science or a related discipline.At least 7 years of experience in full-stack software engineering roles.Strong hands-on experience with React, Python/FastAPI, and PostgreSQL.Background building internal platforms, workflow automation tools, developer tooling, or low-code application solutions.Experience integrating applications with enterprise identity providers and role-based access control models.Solid understanding of secure software engineering practices, including auditing, governance, least-privilege access, and compliance considerations.Proven ability to build or support integrations with third-party systems and enterprise business applications.Strong communication, analytical, and cross-functional collaboration skills.