Appodeal
is a dynamic US-based product company with a truly integral presence.
We have offices in
Warsaw, Barcelona and Parkland (FL),
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:
Help people discover and grow their talents through products that enable successful mobile app businesses
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.
About Appodeal
Appodeal is a dynamic US-based product company with a truly global presence.
We have offices in Warsaw, Barcelona, and Parkland (FL), 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:
Help people discover and grow their talents through products that enable successful mobile app businesses.




We take pride in our cutting-edge product and our internationally distributed team of talented professionals.
Here's what we value:
Continuous Learning and Growth
– We invest in development and long-term careers
Making an Impact
– We are building a history-defining company in the mobile industry
Solving Exciting Challenges
– Complex, large-scale problems are part of our daily work
Enjoying the Journey
– We believe great results come with a positive environment
About the Role
We are looking for a
Senior Rust Engineer
to join our Barcelona team and contribute to building high-performance, real-time systems powering our ML-driven AdTech platform (
Mobile Growth Platform).
In this role, you will work on
core backend infrastructure and ML platform components
, focusing on
low-latency, high-load services
that process large-scale traffic in real time.
You will play a key role in developing and optimizing systems such as
real-time applications, feature stores, user identity services, and custom inference layers
, ensuring scalability, reliability, and performance.
Responsibilities
Contribute to the development of
real-time applications and ML platform components
Build and maintain
high-load, low-latency backend services
Work on in-house solutions including:
Feature stores
User identity services
Custom inference layer




ML platform infrastructure
Optimize system performance across
on-premise Docker & Kubernetes environments
Design and implement solutions for
traffic scaling and system reliability
Collaborate with ML, data, and engineering teams to support production ML systems
Continuously improve system architecture, observability, and efficiency
Tech Stack
Languages:
Rust, Python
Data & Streaming:
Kafka, SQL, Redis, ScyllaDB, Delta Lake, Databricks
Infrastructure:
Docker, Kubernetes (on-premise)
Tools:
GitHub
Requirements
5+ years of experience in
software engineering
Strong proficiency in
Rust
or
proficiency in
C/C++/Zig with willingness to transition to Rust
Experience designing and building
high-load, performance-critical systems
Solid understanding of
system design, concurrency, and performance optimization
Basic knowledge of
machine learning workflows and tools
Nice to Have
System programming experience (
C, C++, Zig
)
Experience in
ML engineering / MLOps
Strong
Python
skills
Familiarity with
AdTech standards (OpenRTB, MRAID, VAST)
Experience with
WASM / WASI
Background in
distributed systems and real-time processing
Location:
Barcelona, Spain (office attendance 4 days per week)
What We're Looking For
Autonomous and self-driven engineer with strong ownership mindset
Passion for
engineering excellence, performance, and scalability
Interest in
ML/AI systems and infrastructure
Ability to work independently and make informed decisions
Strong collaboration and communication skills
Why Join Us:
Opportunity to work on cutting-edge p

📌 Senior Rust Engineer (Laza)
🏢 Appodeal
📍 Laza