Senior Software Engineer II (Workflow)

Kargo unites the world's leading brands, retailers and premium publishers across screens using innovative technology and advanced creative ad formats. At Kargo, we're all about bringing together the best of the best with a spark of creativity to stand out from the crowd. The same is true for our employees. What makes Kargo and each Kargo team member exceptional makes our company special. Kargo believes differences should be celebrated and is committed to diversity in the workplace. As an Equal Opportunity employer, we do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, marital status, age, national origin, protected veteran status, disability or other legally protected status. Individuals with disabilities are provided reasonable accommodation to participate in the job application process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. Founded in 2003, Kargo is a global company headquartered in New York with offices around the world.

Title: Senior Software Engineer II

Job Type: Full-time; 4 Days In Office, Mandatory Mondays
Job Location: New York, NY
Salary Range: $160,000.00 - $190,000.00 (On Target Earning)

The Opportunity

We are looking for a Senior Software Engineer II to join Kargo’s Workflow team. This team owns the tools and platforms that power the internal workflows across Kargo, with a strong focus on Campaign Management.

This role goes beyond just coding—you’ll be driving technical strategy, mentoring engineers, and ensuring our internal applications are scalable, reliable, and intuitive. As a full-stack engineer, you’ll contribute across backend services, APIs, and user-facing applications, ensuring seamless end-to-end delivery of features that support Kargo’s internal teams.

The Daily To-Do

• Design & Development: Architect, build, and maintain scalable web applications and APIs that power Kargo’s Workflow applications, especially Campaign Management.
• Full-Stack Contribution: Work across the stack — from database and backend services to frontend user interfaces — to deliver complete solutions.
• Collaboration: Partner with Product, Design, and Ad Operations teams to understand requirements and translate them into technical solutions.
• System Reliability: Ensure high availability, performance, and security of internal platforms.
• Technical Leadership: Provide mentorship, conduct code reviews, and set best practices for engineering excellence.
• Continuous Improvement: Drive improvements in developer productivity, system observability, and automation.

AdTech Domain Impact: Leverage industry knowledge to design features that integrate seamlessly with Kargo’s ad-serving ecosystem.

Qualifications

• 6+ years of professional software engineering experience, with at least 2 years in a senior or lead capacity.
• Full-stack experience, with proficiency in both backend development (PHP, Go, Node.js, or similar) and frontend frameworks (React, Angular, or Vue).
• Deep understanding of databases (SQL/NoSQL), distributed systems, and API design.
• Strong problem-solving skills with a focus on clean, maintainable, and testable code.
• Excellent communication and collaboration skills.

Follow Our Lead

• Big Picture:  kargo.com
• The Latest:  Instagram (@kargomobile) and LinkedIn (Kargo)