Senior Software Engineer

About the role

As a Senior Software Engineer at Catena, you will be a core contributor to the team inventing new ways for humans and AI agents to interact with financial systems. You will play a critical role in developing and iterating on our core platform, including the Agent Commerce Kit (ACK), building the applications, APIs, and SDKs that facilitate secure, reliable global commerce for a new, agent‑driven economy.

Key responsibilities

• Build Agent Interaction Layers: develop robust applications, APIs, and SDKs enabling secure communication and transactions between AI agents and users.
• Develop Core Product Experiences: create elegant systems for cryptographic identity management, payment workflows, and transaction processing within the ACK framework.
• Engineer Agent‑Native Financial Systems: design end‑to‑end user experiences tailored for AI agents, ensuring secure and reliable financial interactions.
• Create Identity and Reputation Tools: empower agents to establish digital identities, discover peers, and manage reputations effectively.
• Contribute to Scalable Infrastructure: build performant backend services and scalable APIs for rapid, secure coordination among decentralized AI agents.

Required profile

• 6+ years of full‑stack engineering experience with a strong backend foundation.
• Track record of shipping complex production‑quality products from concept to production.
• Commitment to building performant, reliable, and secure systems with polished user experiences.
• Comfortable working in ambiguous environments and designing solutions from the ground up.
• Genuine curiosity for emerging technologies such as AI agents, stablecoins, and programmable identity.
• Effective use of AI tools to boost productivity and streamline development.

Required skills

• Hands‑on experience building AI‑driven solutions or integrating modern AI toolkits.
• Experience in fintech, payments, or blockchain development.
• Proficiency with the tech stack: Python, TypeScript, Go, React.
• Contributions to relevant open‑source projects.