Senior Full-Stack Engineer

Appodeal, Inc.; Barcelona; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A dynamic product company in Barcelona is seeking a Senior Full-Stack Engineer to build and optimize their Demand Side Platform. The ideal candidate will have over 5 years of full-stack development experience, especially with Python and relational databases. This role offers a chance to work with a world-class team, focusing on performance-critical systems and innovative solutions.

Servicios

Fully remote culture

Accelerated career growth

Flexible work hours

Formación

• 5+ years of full-stack development experience with strong frontend capabilities.
• Experience with Python and interest in Rust or JVM languages.
• Strong SQL skills with PostgreSQL or similar databases.
• Experience with high-performance HTTP frameworks.

Responsabilidades

• Build and optimize DSP runtime systems for real-time bid processing.
• Develop frontend applications for campaign management.
• Architect APIs connecting frontend and backend.
• Integrate with external ad exchanges.

Conocimientos

Full-stack development experience

Frontend capabilities

Backend versatility with Python

Strong SQL skills

API development experience

Experience with Kafka or Redis

Familiarity with Docker

Optimization techniques

Strong English communication

Herramientas

FastAPI

Flask

Descripción del empleo

Appodeal is a dynamic US-based product company with a truly global presence.

We have offices in Warsaw, Barcelona and Virginia along with remote team members located around the world.

Our company thrives on diversity, collaboration, and innovation, making us a leader in the mobile app monetization space.

At Appodeal, we’re more than just a company—we’re a team united by a common mission:to help every person discover and grow their talents!

We take pride in our cutting-edge product and our internationally dispersed team of talented professionals.

Here’s what we value, and what we hope you do too:

• Continuous Learning and Growth: We are passionate about learning, growing personally, and building rewarding careers.
• Making an Impact: We are committed to building a history-defining company that leaves a lasting impact on the mobile app industry.
• Solving Exciting Challenges: We tackle complex problems every day, supported by a team of world-class professionals and mentors.
• Enjoying the Journey: We believe in having fun while working toward our goals.

As aSenior Full-Stack Engineer at Appgrowth, you'll be instrumental in building and scaling our Demand Side Platform (DSP) runtime infrastructure. You'll work on both the performance-critical backend systems and modern frontend interfaces that power our advertising technology platform.

What you'll be doing:

• Build and optimize high-performance DSP runtime systems handling real-time bid processing
• Develop responsive frontend applications for campaign management and analytics dashboards
• Architect and implement APIs connecting frontend interfaces with backend services
• Work on performance-critical components requiring low-latency, high-throughput processing
• Collaborate on system architecture decisions as we evolve our technology stack
• Integrate with external ad exchanges and demand sources
• Maintain and improve our existing Python-based UI

What we expect from you:

• 5+ years of full-stack development experiencewith strong frontend capabilities
• Backend versatility:Experience with Python plusinterest/experience in Rust or JVM languages(Java, Scala, Kotlin, Clojure)
• Database expertise:Strong SQL skills with PostgreSQL, ClickHouse, or similar analytical databases
• API development:Experience with high-performance HTTP frameworks (FastAPI, Flask, or equivalent in other languages)
• Real-time systems:Experience with Kafka, Redis, or similar messaging/caching technologies
• DevOps familiarity:Docker, Docker Compose, and CI/CD practices
• Performance mindset:Understanding of optimization techniques for both frontend and backend
• Communication:Strong English skills for cross-team collaboration
• Experience with ad tech, RTB, or programmatic advertising
• Knowledge of functional programming concepts
• Experience with time-series databases or analytics platforms
• Understanding of microservices architecture

Why Appgrowth?

• We’re a product-led company operating at the cutting edge of mobile growth and programmatic media. Here’s why people love working with us:
• Work with a world-class team of DSP and mobile marketing experts;
• Accelerated career growth and high ownership from day one;
• Fully remote culture with flexible work hours;
• Transparent environment with a strong focus on innovation and impact

Apply now and become part of our team in Barcelona!

With an outstanding product and a mission that excites and inspires, Appodeal offers a unique opportunity to make an impact while being part of an amazing team.

Join us and help shape the future of mobile app success!

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