Senior Software Engineer II (Workflow)

Who We Are

Kargo creates powerful moments of connection between brands and consumers to build businesses. Every day, our 600+ employees work to radically raise the bar on what agentic AI, CTV, eCommerce, social, and mobile can do to deliver unique ad experiences across the world’s most premium platforms. Taking a creative science approach to all we do, we continuously innovate solutions that outperform industry benchmarks and client expectations. Now 20+ years strong, Kargo has offices in NYC, Chicago, LA,  Dallas, Sydney, Auckland, London and Waterford, Ireland. 

Who We Hire

Techies who want to build the future. Creatives who want to design it better. Communicators to win business. Collaborators to build it. Data pros who turn numbers into insights. Product builders who turn ideas into innovations. Anyone eager to be on a team that doesn’t stop to ask what’s next, because they’re already building it. 

Our Laurels

• AdAge Best Places to Work 
• ThinkLA Partner of the Year
• Built In Best Places to Work 
• Cynopsis 2025 Top Women in Media - Jeannine Shao Collins
• Martech Breakthrough Awards - Best Overall Adtech Company
• Digiday Media Awards Best Event
• Cynopsis Media Impact Awards-Best CTV Platform
• Martech Breakthrough Awards-CTV Innovation
• Adweek Media Plan of the Year Awards - Best Use of Insights

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)