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Software Engineer

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Senior Software Engineer

Reddit - 4d ago

Senior Software Engineer, Machine Learning Services

Requirements

  • A solid track record (5+ years) of engineering and architecting large-scale, distributed commercial services. Your experience speaks for itself.
  • Deep proficiency in a systems-level language (Rust, C++, Go). A willingness and curiosity to become an expert in Rust is essential, as it's the foundation of our core services. Strong Python skills are also critical.
  • Real-world experience with cloud ecosystems (Azure, AWS, or GCP) and containerization (Docker, Kubernetes). You should understand how production systems are deployed, monitored, and scaled.
  • A firm grasp of concurrency, multithreading, and asynchronous programming. You know the difference between a mutex and a channel, and you know when (and when not) to use them.
  • A pragmatic understanding of computer science fundamentals. We care more about your ability to solve real-world problems with data structures and algorithms than your ability to recite them from a textbook.
  • An opinion on what makes good code and good architecture, and the ability to articulate it. You should be comfortable challenging assumptions (including our own) and contributing to a culture of continuous improvement.
  • You're a builder and a problem-solver at heart.

Nice to Haves (but we can teach you):

  • You've already worked with Rust in a production environment.
  • Experience with MLOps, particularly the challenges of managing the lifecycle of models in a multi-tenant, high-availability system.
  • Familiarity with building ML inference services, model serialization (e.g., ONNX), and GPU programming (CUDA).
  • You've built or worked on custom storage or job-queueing systems before and have the scars to prove it.

What you'll be doing at UiPath

  • Design, build, and operate the core MLS platform. This includes our Rust-based API gateway, Python ML compute workers, and the distributed job queue that orchestrates it all.
  • Solve hard concurrency, performance, and distributed systems problems to ensure our platform is bulletproof for high-volume production workloads.
  • Work directly with product and ML science teams to understand their needs and build the scalable infrastructure required to bring their models to life—from massive GenAI models to fine-tuned, specialized classifiers.
  • Develop our custom-built, content-addressable storage abstraction layer over cloud object stores (GCS, S3, Azure Blob), complete with its own garbage collection and sharding logic.
  • Enhance our asynchronous job-queueing system, built from the ground up on the storage layer using compare-and-swap primitives for atomicity. No off-the-shelf message broker could handle our specific needs.
  • Dive deep into the entire stack, from Kubernetes and container orchestration, through gRPC-based service communication, to the performance tuning of ONNX-based inference on GPU-accelerated hardware.
  • Write clean, efficient, and rigorously tested code. We value simplicity, correctness, and peer review.

Perks and Benefits

  • Flexibility in when and where work gets done
  • Equal opportunities regardless of background, experience, or identity
  • Reasonable accommodations provided upon request
  • Respect for applicants' privacy rights
AI Summary ✨
UiPath logo

UiPath

London, UK

Experience: Senior
Posted: July 17, 2026
Last seen: 15 minutes ago
Aws
Azure
Docker
Gcp
Golang
Kubernetes
Python
Rust
backend

Why we track UiPath

UiPath is a Romanian-born automation platform that went public in 2021. Their Bucharest engineering office is one of the largest in Romania, and compensation is confirmed at €100–130K for senior engineers—exceptional for the market. If you want scale-up engineering challenges with a strong local team, UiPath Bucharest is worth looking at.

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