Kforce's client, a fast-growing and innovative company in the Dallas, TX metro area (Northern area) is seeking a Senior to Principal Backend Engineer focused on Node.js. Our backend systems are the foundation of the traveler and vacation experience, supporting millions of users and high-volume transactions. This is a hybrid role that requires 2-3 days onsite per week. We are working directly with the hiring manager on this exclusive search assignment. Summary: As a Backend Engineer, you'll collaborate with product, engineering, and leadership teams to build scalable services and APIs that power our platform. You will play a key role in shaping system architecture, driving performance, and fostering engineering excellence. Responsibilities: * Architect and develop robust APIs and backend services using Node.js, PostgreSQL, and Redis * Optimize complex SQL queries and database schemas for high-speed performance across large datasets * Solve high-scale engineering challenges to ensure reliability under heavy traffic * Work cross-functionally to deliver backend features aligned with product goals * Identify and resolve technical debt; lead refactoring efforts to future-proof the stack * Participate in standups, code reviews, and deployment processes * Mentor team members and promote technical excellence * Own projects end-to-end-from concept through production