Senior Machine Learning Engineer (Bucharest)

About the Position

Lateral stands for technology excellence.

We’re a profitable, award-winning design and technology company with over 20 years of experience launching bold ventures and transforming businesses. A globally distributed team of 200+ experts united by a shared purpose: the continuous pursuit of quality.

We're looking for a Senior Machine Learning Engineer to join our team in Bucharest, Romania. This role is for someone genuinely exceptional: not broadly experienced, but specifically excellent in a way you can name and prove. This role is for the kind of ML engineer who has owned a system from first principles through production, who decides what to optimize before optimizing it, and who makes the people around them sharper just by being in the room.

We leverage machine learning to deliver solutions in medical imaging and applied AI for longevity medicine, problems where the quality of the model has real clinical consequences and where the science is still being written. As a Senior Machine Learning Engineer, you will design and conduct systematic experiments, implement and validate model architectures in code, optimize model performance through rigorous training strategies, and review the literature to plan the best way forward. You will collaborate directly with domain experts and researchers at the top of their field to define problem statements, interpret outputs, and translate findings into production systems that hold.

The scientific direction on these engagements comes from some of the leading researchers in medical imaging globally. The engineering has to match that standard.

Responsibilities

• Design and conduct systematic experiments
• Implement and validate model architectures in code
• Optimize model performance through rigorous training strategies
• Review literature to plan the best way forward
• Collaborate with domain experts and researchers
• Translate findings into production systems

Requirements

• 5+ years of hands-on experience in machine learning, including model design, training, and evaluation
• Extensive experience applying machine learning to real-world computer vision or medical imaging problems
• Proficiency with PyTorch or TensorFlow and comfort writing clean, modular experimentation code
• Practical experience running experiments, tuning models, and comparing approaches via systematic validation
• Excellent grasp of modern ML concepts: regularization, loss functions, optimization strategies, generalization, overfitting
• An understanding of statistical testing and experimental design to assess performance, robustness, and reproducibility
• Strong communication skills: able to collaborate with engineers, researchers, and domain experts to translate needs into solutions
• A track record of generating novel ideas, exploring them rigorously, and translating them into working systems

Nice to Have

• Experience with medical imaging or scientific ML
• Published research or open-source ML contributions
• Familiarity with explainability techniques and multimodal systems

We Offer

• Work that matters at the deepest level
• Real Impact: You'll work on meaningful products that make a measurable difference
• Remote-First, Office Friendly: Work from wherever you're most productive
• An Outstanding Team: Talented, kind, and hard-working people who care deeply about their craft
• Growth: You'll be supported in growing your craft, exploring new paths, and stepping into greater responsibility
• A Culture of Excellence: We care deeply about doing the right thing
• Variety & Stability: We're profitable, independent, and over two decades strong

About the Company

Lateral stands for technology excellence.

We’re a profitable, award-winning design and technology company with over 20 years of experience launching bold ventures and transforming businesses. A globally distributed team of 200+ experts united by a shared purpose: the continuous pursuit of quality.

Our clients come to us for results, quality, and craft - and stay because we keep raising the bar.

Our mission is simple: design and build great products.

What sets us apart isn’t just the talent of our team - it’s the way we work:

We Have A Bias For Action & Results.

We are doers - we spot the gaps, connect the dots, anticipate what’s around the corner and take action. We move fast, stay focused, and let the results - not the effort - speak for themselves.

We Work On Time, On Budget, On Quality

Discipline is our edge - a commitment we make to each other, to our clients, and to the standards we hold ourselves to.

We Care Deeply.

We care about our work and about each other. Care Is A Competitive Advantage.

Every detail matters. Every design, every line of code, every decision. Thoughtful by default.

We Do Things Right - Because It’s the Right Thing to Do

Right over easy. Integrity isn’t up for negotiation. We hold the bar high even when no one’s watching. We take pride in doing great work the right way - not the easy way.

We Keep Improving

The best teams keep improving and we’re never done learning.

We iterate. We reflect on what’s working and what’s not. Feedback fuels us, we receive it openly, and adapt quickly. Progress over perfection.

We’re Obsessed With Agility, Not The Agile Manifesto

We don’t chase dogma or rituals - we chase momentum. We adapt processes to fit problems, not the other way around.

We Take Ownership

Everyone leads something here. You will have room to run with ideas, and the trust to execute. That trust is built on how you show up: thinking things through, sweating the details, and following through.

Founded in 2008

Co-workers 300