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.
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.
- 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 I
Job Type: Full Time
Job Location: Ireland
The Opportunity
We are looking for a Senior Software Engineer I to join Kargo’s Workflow team. In this role, you will contribute across the stack to design, build, and maintain applications that support Kargo’s internal workflows.
As a full-stack engineer, you will play a key role in delivering features end-to-end — from backend services and APIs to user-facing applications. This role is ideal for someone who has proven engineering experience, enjoys tackling complex challenges, and is looking to take the next step in technical depth and ownership.
The Daily To-Do
- Full-Stack Development: Contribute to backend services, APIs, and frontend interfaces that power Kargo’s Workflow applications.
- Feature Implementation: Work closely with Product, Design, and Ad Operations to turn requirements into reliable, scalable solutions.
- Quality & Reliability: Write clean, maintainable, and testable code that meets performance and security standards.
- Collaboration: Partner with peers across engineering and product/design to ensure smooth delivery of internal tools.
- Continuous Learning: Stay current with industry trends and bring new ideas to improve team efficiency and product quality.
Code Reviews & Best Practices: Participate in code reviews and contribute to shared standards of engineering excellence.
Qualifications
- 4+ years of professional software engineering experience.
- Full-stack experience, with proficiency in both backend development (PHP, Go, Node.js, or similar) and frontend frameworks (React, Angular, or Vue).
- Solid understanding of databases (SQL/NoSQL), distributed systems, and API design.
- Strong problem-solving skills with attention to detail and maintainability.
- Effective communication skills and the ability to work in a collaborative environment.
Follow Our Lead
- Big Picture: kargo.com
- The Latest: Instagram (@kargomobile) and LinkedIn (Kargo)

