Senior Backend Engineer / Staff Engineer

Q-tech; España; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

An innovative tech startup in Spain is seeking a Senior Backend Engineer to design and implement scalable systems. You will tackle complex challenges in distributed systems, optimize performance, and contribute significantly to the product's architecture. Ideal candidates will have expertise in Python, Kafka, and real-time processing. Competitive compensation and a collaborative environment await you.

Servicios

Attractive salaries aligned with international standards

Equity options

Cutting-edge tech stack

Formación

• Proven experience as a Senior Backend Engineer or Staff Engineer.
• Expertise in distributed systems and real-time processing.
• Strong knowledge of backend technologies such as Python and Kafka.

Responsabilidades

• Design and implement scalable architectures for large data volumes.
• Optimize system performance for real-time responsiveness.
• Solve complex problems related to distributed systems.

Conocimientos

Distributed systems

Scalability

Real-time processing

Python

Kafka

WebSockets

Concurrency

Asynchronous programming

Descripción del empleo

We are collaborating with an early-stage tech startup backed by top-tier investors from Silicon Valley, including one of the most prestigious venture capital funds in the world.

Their mission is to revolutionize the way businesses approach sales automation using artificial intelligence and conversational technologies.

Their team is currently small but highly talented, with a shared passion for solving complex technical challenges and driving innovation.

About the Role

We are looking for a Senior Backend Engineer or Staff Engineer to join the team and help them build scalable, real-time systems that power the platform. This is a great opportunity to work on advanced distributed systems, tackle low-latency problems, and contribute directly to the architecture of a product that will redefine an entire industry.

Key Challenges

• Design and implement scalable architectures capable of handling large volumes of data and high user concurrency.
• Optimize system performance to ensure real-time responsiveness for critical features.
• Solve complex problems related to distributed systems, such as managing Kafka partitions, WebSocket connections, and asynchronous event processing.
• Build robust infrastructure to support innovative AI-driven functionalities while maintaining reliability and efficiency.

What We’re Looking For

• Proven experience as a Senior Backend Engineer or Staff Engineer, with expertise in distributed systems, scalability, and real-time processing.
• Deep understanding of backend technologies such as Python, Kafka, WebSockets, and similar tools.
• Strong knowledge of concurrency, asynchronous programming, and low-latency system design.
• Experience working on large-scale systems, preferably in industries like video streaming, real-time communications, or SaaS platforms.
• A problem-solving mindset with a passion for tackling innovative and complex technical challenges.
• While not mandatory, familiarity with AI / ML technologies is a plus.

Why Join Us?

• Be part of something groundbreaking:

Work on a product that combines AI, real-time systems, and sales automation to address a significant market need.

• High impact:

As an early team member, your contributions will shape the future of the company and its technological stack.

• Collaborative environment:

Join a team of highly skilled professionals who value creativity, innovation, and technical excellence.

• Competitive compensation:

We offer attractive salaries aligned with international standards, equity options, and other benefits.

• Cutting-edge tech stack:

Gain hands-on experience with state-of-the-art technologies and methodologies.