Software Engineer - Bulgaria, Early Career

Posted 15 Days Ago
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Hiring Remotely in Sofia, Sofia-grad, BGR
Remote
Junior
Artificial Intelligence • Machine Learning • Software
The Role
Join a team building and scaling production AI model-serving infrastructure. Collaborate on designing, implementing, optimizing, and monitoring inference solutions; write and review code; test and maintain model-serving systems; and explore new AI/ML techniques to improve performance. Early-career role focused on learning, shipping features, and operational responsibility.
Summary Generated by Built In
DeepInfra is looking for early-career Software Engineers (0-2 years of experience, including internships) to join our team. You’ll work closely with our experienced engineers to design, build, and scale infrastructure for serving top open-source AI models. This role is ideal for recent graduates or junior engineers who want to grow quickly while working on high-impact, real production AI systems.

If you’re excited about AI/ML, have taken related courses or built projects, and want to learn how to ship things at scale - we’d love to meet you.

What You’ll Do

  • Collaborate with engineers to design, develop, and test inference solutions for state-of-the-art AI models.
  • Implement, optimize, and evaluate AI models using Python, C++, CUDA, and NCCL (previous exposure helpful - deep expertise not required).
  • Monitor and maintain production model-serving systems.
  • Work on new features, fix bugs, and contribute to code reviews.
  • Participate in daily standups, design reviews, and team discussions.
  • Explore new AI/ML techniques and tools, and experiment with improving model performance.
  • Try new things. Ship stuff.

What You Bring

  • Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related field (completed or in final year).
  • Strong fundamentals in data structures, algorithms, and software design.
  • Proficiency in Python, including experience with AI/ML libraries and frameworks (e.g., NumPy, pandas, SciPy, TensorFlow, PyTorch).
  • Experience with AI/ML through coursework, research, personal projects, full-time employment, or internships.
  • Familiarity with AI models, Transformers and Diffusers.
  • Experience with version control systems (e.g., Git) and agile development methodologies.
  • Excellent problem-solving skills, with the ability to debug and optimize code.
  • Strong communication and collaboration skills.
  • Curiosity, willingness to learn, and desire to build real systems.

Bonus

  • Exposure to C++, CUDA, or AI inference.
  • Contributions to open-source ML projects.

Why DeepInfra

  • Work on cutting-edge AI model serving - the systems that power the next generation of LLMs and multimodal models.
  • Small team, huge impact: your work ships directly to customers.
  • Opportunity to learn from engineers building high-performance inference at scale.
  • Fast-paced environment with ownership, autonomy, and end-to-end responsibility.

Skills Required

  • Bachelor's or Master's degree in Computer Science, Computer Engineering, or related field (completed or in final year).
  • Strong fundamentals in data structures, algorithms, and software design.
  • Proficiency in Python, including experience with AI/ML libraries and frameworks (NumPy, pandas, SciPy, TensorFlow, PyTorch).
  • Experience with AI/ML through coursework, research, personal projects, full-time employment, or internships.
  • Familiarity with AI models, including Transformers and Diffusers.
  • Experience with version control systems (e.g., Git) and agile development methodologies.
  • Excellent problem-solving skills, with the ability to debug and optimize code.
  • Strong communication and collaboration skills.
  • Curiosity, willingness to learn, and desire to build real systems.
  • Exposure to C++, CUDA, or NCCL (helpful but deep expertise not required).
  • Contributions to open-source ML projects.
  • Exposure to AI inference engineering.
Am I A Good Fit?
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The Company
HQ: Palo Alto, California
20 Employees
Year Founded: 2022

What We Do

Let Deep Infra run your ML infrastructure. Just use our top AI models using a simple API or deploy your own model with us.

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