Senior Full-Stack Engineer

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.

Why Appodeal?

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 a Senior 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.

• 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

• 5+ years of full-stack development experience with strong frontend capabilities


• Advanced frontend skills: 4+ years with React, modern JavaScript/TypeScript, and responsive design


• Backend versatility: Experience with Python plus interest/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!