Principal Engineer, Tech Lead – Integrations & APIs

Horizon3.ai

Principal Backend Engineer serving as Technical Lead for the Platform Integration team at Horizon3.ai. Responsible for shaping systems, architecture, and technical direction to enhance security operations.

Posted 7/17/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $213,000 - $273,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in backend service development, technical architecture, and cross-functional collaboration, with a strong focus on mentoring and elevating engineering standards. Proficient in translating business goals into actionable technical strategies while ensuring high-quality code and operational excellence.

Highest-signal resume keywords

Backend Service DevelopmentTechnical ArchitectureCloud Platform ExperienceMentorship and CoachingCross-Functional Collaboration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software EngineeringBackend DevelopmentPythonGoJavaTypeScriptSQLRelational DatabaseCloud ServicesContainerization

Soft Skills

CommunicationLeadershipProblem-SolvingFeedback ProvisionTechnical Judgment

Tools & Technologies

AWSGCPAzureDocker

Industry Keywords

Technical VisionArchitecture ReviewCode QualityOperational RigorScalable Systems

Tech Stack

Tools & technologies

AWSAzureCloudDockerGoGoogle Cloud PlatformJavaPythonSQLTypeScript

About the role

Key responsibilities & impact

Own the end-to-end technical vision for the Integration team and its supporting services, from initial concept through implementation, iteration, and long-term evolution.
Partner with cross functional stakeholders to translate ambiguous product and business goals into concrete technical strategy, architecture, and execution plans for the Integration team.
Contribute production code, setting the standard for design quality, code quality, and operational rigor.
Lead architectural decisions for scalable backend systems that balance velocity, reliability, maintainability, extensibility, and operability.
Drive execution across multiple concurrent projects and initiatives, identifying risks, dependencies, and tradeoffs early and helping the team sequence work effectively.
Partner closely with Product, Engineering leadership, Design, and adjacent engineering teams to deliver cross-functional initiatives and ensure technical decisions reflect both business context and customer needs.
Communicate complex technical concepts clearly to both technical and non-technical audiences, including leadership stakeholders.
Set and continually raise the technical bar through architecture reviews, code reviews, technical writing, and strong engineering judgment under ambiguity.
Mentor and develop engineers on the team by providing thoughtful feedback, technical coaching, and frameworks that help others do the best work of their careers.

Requirements

What you’ll need

Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience.
10+ years of professional software engineering experience.
Experience building backend services using at least one modern language, such as Python, Go, Java, TypeScript, or similar.
Experience working with SQL and at least one relational database in production.
Experience building backend services on a cloud platform (AWS, GCP, or Azure), and familiarity with Docker and containerized applications.

Benefits

Comp & perks

Health, vision & dental insurance for you and your family
Flexible vacation policy
Generous parental leave
Equity package in the form of stock options
Growth opportunities within a dynamic and growing team
Work in a collaborative environment that encourages creativity and out-of-the-box thinking