Principal Full-Stack Software Engineer

Saleo, Inc.•Alpharetta, GA

About The Position

Saleo exists to help software companies create incredible software demos that win and retain more customers. Our platform powers interactive, production-like demo experiences used by sales and customer teams every day. As a Principal Full-Stack Software Engineer, you will be a senior technical leader on our Product Development team, reporting to the VP of Engineering. You will help define Saleo’s technical direction, lead system architecture, and deliver scalable, reliable, high-quality software while mentoring engineers across the organization.

Requirements

10+ years of professional software engineering experience, including substantial hands-on experience across frontend, backend, and production systems.
Proven ability to design, build, deploy, and operate large-scale, distributed systems in production.
Significant experience with modern frontend technologies, including: React JavaScript TypeScript
Significant experience with backend and cloud technologies, including: Node.js AWS (including Lambda and serverless architectures) DynamoDB or other NoSQL databases
Extensive experience running and owning production systems on a major cloud provider (AWS preferred).
Strong experience with RESTful and/or RPC API design.
Experience designing and evolving document-oriented and NoSQL data models.
Deep understanding of scalability, performance tuning, and fault tolerance.
Strong familiarity with observability tools (metrics, logging, tracing).
Experience building highly available systems with frequent, safe deployments.

Nice To Haves

Experience developing browser extensions.
Experience influencing or leading technical strategy across teams.

Responsibilities

Own and evolve system architecture across frontend, backend, and cloud infrastructure.
Lead the design and implementation of large-scale, high-performance, distributed systems.
Set and uphold engineering standards, best practices, and architectural patterns.
Lead and participate in architecture and design reviews.
Evaluate and introduce new technologies and frameworks where appropriate.
Design, write, and review production-quality code in React, JavaScript, TypeScript, Node.js, and other languages/frameworks as needed.
Build and maintain services spanning browser extensions, web portals, and partner integrations.
Design and operate backend services using AWS, Lambda, DynamoDB, and related cloud services.
Deploy high-volume, customer-facing services to production multiple times per day.
Instrument systems to provide visibility into performance, reliability, and business impact.
Own production health by monitoring availability, latency, and overall system performance.
Lead incident response, root-cause analysis, and long-term reliability improvements.
Partner with Support and Product teams to triage and resolve complex customer and platform issues.
Champion engineering quality through automated testing, code reviews, and CI/CD improvements.
Mentor senior and mid-level engineers, raising the overall technical bar.
Influence engineering culture through documentation, knowledge sharing, and technical leadership.
Collaborate cross-functionally with Product, Design, Support, and Leadership to align technical execution with business goals.