Senior Python Backend Engineer For Fintech Apis

Puntorojo; Buenos Aires; A distancia; ARS 182.310.000 - 273.465.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Company laptop

100% remote (LATAM)

Generous PTO and regional holidays

Descripción de la vacante

Prometeo Talent is partnering with a fast-growing US-based cybersecurity startup seeking a Senior Backend Engineer. You will design, build, and maintain scalable backend services using Java and Python, with a focus on AI-driven features and distributed architectures.

The role requires ownership mindset and hands-on experience in AI/LLM development, data pipelines, and modern tech stacks. Join a startup that values autonomy, fast iteration, and high-impact technical decisions.

Formación

• 8+ years of software/backend experience.
• 5+ years Python production backend experience.
• Strong Java experience.
• Hands-on AI/LLM-based development.
• Experience with distributed systems and async processing.

Responsabilidades

• Design, build, and maintain scalable backend services using Java and Python.
• Develop distributed systems with databases, APIs, queues, and data pipelines.
• Own features end-to-end from design to monitoring and optimization.
• Ensure reliability, performance, and maintainability of production systems.
• Collaborate with product/engineering to translate requirements into technical solutions.
• Improve system performance and scalability across the platform.
• Leverage AI-assisted development tools to speed delivery while ensuring quality.
• Participate in architectural discussions and decisions.

Conocimientos

Python

Java

AI/LLM

Docker

Kubernetes

Distributed systems

English

Herramientas

Databases

Message queues

Data pipelines

Descripción del empleo

At Prometeo Talent, we connect top-tier tech and engineering professionals with companies that are shaping the future. With a strong presence across America and Europe, we’re proud to be one of the highest-rated recruitment agencies in the market.

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.

About us

At Prometeo Talent, we connect top-tier tech and engineering professionals with companies that are shaping the future. With a strong presence across America and Europe, we’re proud to be one of the highest-rated recruitment agencies in the market.

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.

The 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 ideal 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, and engineering standards.

Requirements

• 8+ years of experience in software engineering or backend development.
• 5+ 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

Nice to have

• Experience working in product‑focused companies, owning products beyond the initial development phase.
• Experience in cybersecurity products or security‑focused platforms.
• Experience with Kafka, RabbitMQ, or similar messaging systems.
• Experience building large‑scale distributed data processing systems.
• Background in high‑growth startups or scale‑ups.
• Previous experience in large technology companies

What’s in it for You

100% remote work with flexibility to work from LATAM.

Join an early‑stage cybersecurity startup where your work will directly impact the product and company growth.

Be part of an engineering culture that embraces modern AI‑assisted development workflows.

Company‑provided laptop and equipment.

Generous PTO and regional holidays.

High ownership, autonomy, and direct influence on technical decisions.