Senior Software Engineer, Optimize/Analyze (AI)

Location: Remote-first in Argentina

Company

hirify.global is an agentic web marketing platform that helps modern marketing teams build, manage, and optimize high-performing web experiences.

What you will do

• Architect, design, and build scalable multi-tenant backend services and APIs for hirify.global Optimize, including its MCP server.
• Develop with MongoDB, Druid, Airflow, AWS EC2 and S3, Python, and TypeScript/Node.js.
• Define service and API boundaries and optimize MongoDB data models and queries powering recommendations.
• Improve scalability and reliability through distributed architecture, caching, event-driven systems, and low-latency processing.
• Lead projects from design through launch, author and evaluate design documents, and partner with product engineers, PMs, and designers.
• Write and review tested, maintainable code and help build reliable systems on top of AI and LLM-backed components.

Requirements

• BA/BS degree or equivalent experience.
• Business-level English fluency for reading, writing, and speaking.
• 5+ years of experience building and shipping production backend services, with a record of performant, high-quality code.
• Depth in distributed systems, including concurrency, asynchronous and eventually consistent processing, queues or streaming, and designing for failure.
• Strong Python and/or TypeScript/Node.js skills plus data modeling experience with MongoDB or a comparable database.
• Experience with real-time analytics, event-driven architectures, and REST APIs.
• Hands-on AWS, containers, CI/CD, observability, infrastructure ownership, and production debugging across services and stack layers.
• Strong focus on testing, documentation, reliability, and clearly communicating trade-offs.
• Curiosity and proactive use of AI tools to improve development speed and team impact.

Nice to have

• Experience with Apache Spark, Airflow, or TensorFlow.
• Familiarity with Kafka or other event streaming platforms.
• Experience with large-scale personalization, experimentation, or recommendation systems.

Culture & Benefits

• Permanent, full-time employee role; this is not a contractor position.
• Core behaviors include building lasting customer trust, winning together, reinventing what is possible, and owning outcomes end to end.
• Equity through RSUs, comprehensive medical, dental, and vision coverage, and localized work and wellness stipends.
• Paid parental leave, flexible vacation, paid holidays, sabbatical leave, mental health resources, therapy, and coaching.
• Retirement savings support, including a 401(k) with employer matching in the U.S., and an annual WIN bonus program for eligible permanent full-time employees.
• Employment requires valid right-to-work authorization depending on the country of employment; offers may include a background check.

Hiring process

• Applications are accepted on an ongoing basis until the position is closed and filled.
• hirify.global uses AI tools to assist with application screening and evaluation, but AI does not make final hiring decisions.