Senior Backend Engineer (Java/Python) — Scalable AI Systems

Coderio; Santa Fe Capital; Remote; ARS 212,038,000 - 318,057,000; Full time

Benefits offered by this job

Remote work

Equipment provided

Generous PTO and regional holidays

Job summary

Prometeo Talent is partnering with a fast-growing US-based cybersecurity startup to hire a Senior Backend Engineer. You will design, build, and maintain scalable backend services in Java and Python, focusing on distributed systems and AI-assisted development.

You will own features end-to-end, collaborate with a highly technical team, contribute to architectural decisions, and drive reliability and performance.

Qualifications

• 8+ years of software engineering or backend development.
• 5+ years professional experience with Python, building and maintaining production-grade backend systems.
• Strong experience with Java.
• Hands-on experience with AI/LLM-based application development (AI agents, agentic systems, or LLM-powered applications).
• Experience building AI-driven features, LLM integrations, or agentic workflows in production environments is highly preferred.
• Solid understanding of distributed systems, scalable architectures, and asynchronous processing.
• Experience working with databases, message queues, and data processing pipelines.
• Hands-on experience with Docker and Kubernetes in production environments.
• Proven experience building, maintaining, optimizing, and improving products after launch.
• Strong ownership mindset, autonomy, and ability to thrive in startup or fast-paced environments.
• Advanced English level

Responsibilities

• Design, build, and maintain backend services using Java and Python.
• Develop distributed systems involving databases, APIs, message queues, and data processing pipelines.
• Take full ownership of features and services throughout their lifecycle, from design and implementation to monitoring and optimization.
• Build production-ready systems with a strong focus on reliability, performance, and maintainability.
• Collaborate closely with product and engineering teams to translate business requirements into technical solutions.
• Improve system performance, scalability, and operational efficiency across the platform.
• Leverage AI-assisted development tools to accelerate delivery while ensuring code quality and engineering best practices.
• Participate in architectural discussions and contribute to key technical decisions as the company scales.
• Continuously improve development processes, tooling, and engineering standards.

Skills

Python

Java

Docker

Kubernetes

AI/LLM development

Distributed systems

Databases

Message queues

Data processing pipelines

Ownership mindset

English

Tools

Kafka

RabbitMQ

Job description

Prometeo Talent is partnering with a fast-growing US-based cybersecurity startup to hire a Senior Backend Engineer. You will design, build, and maintain scalable backend services in Java and Python, focusing on distributed systems and AI-assisted development.

You will own features end-to-end, collaborate with a highly technical team, contribute to architectural decisions, and drive reliability and performance.