We're currently partnering with a fast-growing US-based cybersecurity startup. The company is building innovative security solutions that help organizations strengthen their cybersecurity posture through intelligent, scalable, and modern technology. As an early-stage startup, you'll have the opportunity to work on complex technical challenges, contribute to product evolution, and make a direct impact on the growth and success of the platform.
Opportunity
We are looking for a Senior Backend Engineer who thrives in startup environments and enjoys building scalable systems from the ground up.
This role is idóneo for engineers who combine deep backend expertise with a strong ownership mindset. You will play a key role in designing, building, and maintaining distributed systems while collaborating with a highly technical and fast-moving team.
The ideal candidate has extensive experience with Java and Python, enjoys solving complex engineering problems, and embraces AI‑assisted development workflows to increase productivity without compromising quality.
Responsibilities
- Design, build,



and maintain scalable 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,

📌 Senior Ai Backend Engineer (Quilmes)
🏢 Pyyne Digital
📍 Quilmes