AI/ML engineer
Remofirst
Software Engineering, Data Science
Bulgaria
Posted on Jan 7, 2026
We are one of the fastest-growing private companies in the USA, recently at 85th position on the Inc. 5000 list of fastest-growing companies in 2025. Backed by $40+M in venture funding, we are scaling rapidly and investing heavily in AI-driven solutions to supercharge our operations.We’re hiring an AI Engineer to join our team at the intersection of engineering, AI innovation, and go-to-market execution. This role is perfect for a passionate AI practitioner who wants to see their work directly impacts new innovative products, company’s growth and leads to expanding own competencies in the field.
What You’ll Do
- Implement new AI features in products
- Build tools & frameworks augmenting the capabilities of LLM/VLMs
- Build AI automations & AI agents
- Fine-tune AI models
- Fine-tune and maintain models with the HuggingFace toolkit
- Monitor model's performance
- Work with and guide internal teams on building custom datasets
- Research & Development
- Rapidly build and test AI-driven concepts — moving from proof of concept → MVP → production.
- Evaluate existing solutions (both internal & external) and conduct experiments on potential improvements
What We’re Looking For
- Technical skills
- Strong software engineering background: Python, Rust is a nice-to-have
- Experience in parameter-efficient fine-tuning
- Knowledge and familiarity with the tools in AI ecosystem (ML frameworks, HuggingFace, MLOps, Guardrails, AI Agents)
- Understanding the theory behind neural networks and Transformer architecture
- Experience
- 2–5 years in AI/ML space, at least 2 years with language models
- experience with other modalities (vision, audio) is a nice-to-have
- Track record of going from idea → prototype → production in fast-paced environments
- Previous experience in R&D department is highly valued
- Traits
- Curiosity and willingness to learn
- Ability to take ownership, but also cooperate in small teams
- Ambition to reach new levels of quality
Why Join Us
- Growth opportunity: This is a chance to define how AI transforms a category-leading startup — and grow your career as we scale.
- As a part of our AI team you will be able to learn from other engineers and ongoing R&D projects.
- Direct impact: Your work will be at the center of the most important projects in our companyCompetitive compensation and benefits