Software Engineer
Job description
About the role
At Agentio, we are reimagining the $800B digital advertising ecosystem by building infrastructure that shifts ad spend into the hands of creators. We are looking for a senior software engineer to join our founding engineering team and own the design and implementation of core platform features that power our creator marketplace and AI-driven content understanding systems. You will translate ambiguous product requirements into robust, scalable software solutions from initial architecture to production deployment. Each week, you will ship real functionality that directly shapes product direction and business outcomes in a fast-moving, high-performance environment. You will tackle complex challenges in marketplace orchestration, multimodal content understanding with large models, and real-time budget allocation, while owning end-to-end delivery and ensuring features are monitored and iterated upon in production. This is a rare opportunity to get in early at a generational company that is defining how advertising works for brands and creators, and to build something meaningful alongside an exceptional team.
What you'll do
- Architect and build scalable backend services and APIs that support creator onboarding, marketplace transactions, and campaign management at scale.
- Implement and optimize real-time content understanding pipelines using large language and multimodal models to analyze creative assets across platforms.
- Design and maintain data pipelines that aggregate performance signals to enable intelligent budget distribution and campaign optimization.
- Partner with product and design to translate high-level concepts into technical specifications and executable feature sets.
- Lead the development of marketplace orchestration logic that dynamically aligns creator capabilities with brand campaign requirements.
- Implement monitoring, alerting, and observability solutions to ensure reliability and performance of production services.
- Collaborate with data science teams to integrate model outputs and feedback loops into the advertising execution engine.
- Optimize database schemas, query patterns, and caching strategies to support low-latency, high-throughput operations.
- Write and maintain comprehensive tests and documentation to support long-term maintainability and onboarding of new engineers.
- Participate in code reviews and contribute to engineering best practices, tooling, and infrastructure improvements.
Requirements
- Experience building and scaling high-quality, maintainable products from the client to the server.
- Hands-on experience with modern backend technologies, including but not limited to languages such as Python, Go, or JavaScript, and frameworks relevant to scalable web services.
- Ability to work across the full stack, connecting frontend interactions with backend logic and data layers.
- Strong understanding of distributed systems concepts, including concurrency, fault tolerance, and scalability patterns.
- Experience with databases, both relational and NoSQL, and the ability to design schemas that balance performance and flexibility.
- Proficiency with cloud platforms and infrastructure as code, with exposure to deployment pipelines and container orchestration being a strong advantage.
- Understanding of machine learning model integration fundamentals, including prompt engineering, API orchestration, and evaluation metrics.
- Comfort working in a fast-paced, high-growth environment where priorities can shift rapidly and ambiguity is the norm.
- Clear, constructive communication style and a collaborative approach to problem-solving.
- Willingness to work onsite in New York, NY, 5 days a week.
About the role
We're looking for a senior software engineer with experience in early-stage or high-growth environments to join our team. As a foundational member of engineering, you'll work directly with our founders to design, build, and launch new product features - from first lines of code to production. Every week, you'll ship real functionality and have the autonomy to tackle meaningful, complex engineering problems.
You'll be tackling complex challenges in marketplace design, multimodal content understanding with large models, and campaign optimization in a high-performance environment where technical decisions directly shape product direction and business outcomes.
This is a rare opportunity to get in early at a generational company redefining how advertising works for brands and creators. If you're excited by ownership, fast execution, and real-world impact, this could be a great fit.
What you need
- Experience building and scaling high-quality, maintainable, products from the client to the server
- Experience and interest in working across the stack
About You
- You enjoy building features, as well as designing and scaling architecture
Nimble, hungry, humble, and adaptive to change
You appreciate good design, and you get excited to translate that into functional experiences that people use every day
- You are a human-centric product thinker who loves thinking about how technology can best be used to enhance people's lives
- You are excited to learn and grow in a fast-paced environment
- A true problem-solver and self-starter, with incredible ambition and drive
- Competitive and highly motivated to exceed expectations
- Ready to roll up your sleeves, get things done, and work harder than you've likely ever worked before, but with far greater reward
- A fun, honest, empathetic, and curious teammate
- You understand that Agentio is building in-person, 5 days a week
What you'll get
- The opportunity to build a first-of-its kind business as an early team-member and make a meaningful impact in the way brands share their stories and creators live off their work.
- Crash-course in what it takes to scale a start-up with first-hand exposure to the different foundational business drivers and needs.
- The chance to work with an exceptional team and help build our engineering culture
- A collaborative, transparent, and engaging work environment.
Benefits & Perks
- Flexible PTO - Take the time you need to recharge
- Comprehensive Health Coverage - Top medical, dental, and vision insurance
- Equity - Meaningful equity participation in one of the fastest-growing companies in MarTech
- Wellness - Gym stipend and mental health coverage
- Learning & Development - Paid professional development and training budgets
- Community - Volunteer days and team offsites
Practical notes
Work is onsite in New York, NY, 5 days a week.