Full-Stack Engineer

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

Descripción de la vacante

A global product company is seeking a Full-Stack Engineer to design AI agents and automation platforms. You will develop intelligent workflows powered by LLMs, collaborate on data quality, and implement server integrations. Ideal candidates have strong Python skills and experience with modern development practices. Join a diverse team dedicated to innovation and making an impact in the mobile app industry.

Formación

• Strong coding experience in Python or full-stack development.
• Experience with relational databases, preferably PostgreSQL.
• Knowledge of CI/CD processes and testing methodologies.

Responsabilidades

• Design and develop intelligent agents powered by LLMs.
• Build workflows integrating with APIs and databases.
• Implement servers connecting projects and data sources.
• Create and optimize prompts and manage memory modules.
• Collaborate with teams to improve data quality.
• Review code to ensure quality and best practices.

Conocimientos

Experience with Large Language Models

Hands-on experience with LLM agent frameworks

Understanding of prompt engineering

Ability to design multi-agent architectures

3+ years development experience

Knowledge of modern software practices

Proficiency with Docker & Docker Compose

Strong communication skills in English

Herramientas

PostgreSQL

DBT

FastAPI

Vue.js

AWS

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.

Appodeal is hiring a Full-Stack Engineer – AI & Business Automation to help us design and build AI agents and automation platforms that power the future of our business. You’ll work on projects integrating large language models, APIs, and data workflows, while also contributing to our internal engineering ecosystem.

What will you do:

AI Agent & Automation Development (Core Focus)

• Design and develop intelligent agents powered by LLMs.
• Build agent workflows that integrate with external APIs, tools, and databases.
• Implement MCP servers to connect our projects and data sources.
• Create and optimize prompts, manage context, and implement memory modules.
• Design and develop our ELT platform and data pipelines.
• Build and maintain internal services used across the company.
• Review and provide feedback on code to ensure quality and best practices.
• Collaborate with other teams to improve data quality and reliability.
• Contribute to internal documentation and the engineering wiki.
• Write unit and integration tests to ensure code quality and stability.

What we expect from you:

• Strong experience working with Large Language Models.
• Hands-on experience with LLM agent frameworks.
• Deep understanding of prompt engineering, context management, and memory modules.
• Experience implementing RAG pipelines.
• Ability to design and evaluate multi-agent architectures.
• 3+ years of experience in Python or full-stack development.
• Solid experience with PostgreSQL or other relational databases.
• Strong knowledge of modern software practices: clean code, testing, code reviews, CI/CD.
• Proficiency with Docker & Docker Compose.
• Strong communication skills in English.

Nice to have:

• Experience with data engineering tools like DBT, Dagster, Airflow, or Meltano.
• Experience with FastAPI, Vue.js, or AWS.

We believe in the following values, and hope you do too:

• Leverage Data to Build Product. We rely on data to make informed decisions and create products that solve real problems. While data guides us, we apply insight, context, and wisdom to interpret it thoughtfully.
• We Work Together to Serve Others. Collaboration is at the heart of everything we do. By serving others—customers, teammates, and stakeholders—we create value and build trust.
• Relentless Pursuit of Excellence, Insist on Higher Standards. We commit to grow and evolve in everything we do, constantly seeking opportunities to refine our processes, skills, and results. Excellence is a continuous journey, and we embrace a mindset of learning, adapting, and improving every day.
• Passionate Curiosity Fuels Perseverance. Passionate curiosity drives us to explore challenges, learn from setbacks, and adapt with resilience. It fuels our determination to find solutions and ensures we never give up.
• Direct and Straightforward, No Politics. Transparency and honesty are essential. We communicate clearly, focus on facts, and avoid unnecessary politics or hidden agendas.
• Lean Startup Mentality: Start Small, Iterate Quickly. We prioritize experimentation, fast learning, resourcefulness, agility, and innovation. We test, iterate, and adapt to achieve our goals efficiently.
• Ownership and Accountability. Everyone is empowered to take ownership of their work. We are accountable for our decisions, actions, and outcomes.

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

Help shape the future of mobile app success!