Machine Learning Engineer

About the Position

We are looking for a Machine Learning Engineer to join one of our teams working on a confidential international project developed in collaboration with one of the world’s largest toy manufacturers, a global brand recognized for innovation, education, and creativity.

You will work within a small, focused R&D team on non-trivial ML problems involving multimodal and agentic systems, at the intersection of vision, language, and reasoning. The role combines applied research with hands-on implementation, where your contributions are visible and impactful, and offers the opportunity to grow your expertise by working closely with both research and real-world system development.

Responsibilities

• Conduct applied research and develop ML/AI models
• Design, train, and optimize: Vision-Language Models (VLMs), Large Language Models (LLMs), Agentic MCP frameworks
• Build and improve scalable multimodal architectures
• Read, understand, and implement ML research papers
• Collaborate with international teams across research, design, and engineering

Requirements

• 4+ years of experience in Machine Learning / Deep Learning
• Solid foundations in: linear algebra (including matrix operations), probability theory and statistics, algorithms and theoretical computer science basics, working knowledge of calculus (practical level)
• Hands-on experience with: LLMs (fine-tuning, LoRA, or others), Vision-Language Models, Agentic AI systems, Diffusion models
• Strong Python skills; C++ is a plus
• Experience with a modern ML framework (preferably PyTorch)
• Ability to read and implement research papers
• Interest in learning, experimenting, and contributing in a collaborative team

Why Join Us?

• Opportunity to contribute to a global-impact project with a unique creative component
• Exposure to advanced AI systems and methodologies
• A focused, collaborative, and professional environment

About the Company

At Arnia, we are a diverse and passionate team of software development engineers, quality assurance engineers, business analysts, system administrators, and managers, united by our shared dedication to creating high-quality software solutions and delivering exceptional services to our valued customers and partners.

We believe in customer satisfaction as being the single most important goal we want to achieve in everything we do. But we also believe that we can reach this goal while having fun at work, making friends, and enjoying working together. We have game evenings, nights out, and team building events to help us know each other better and spend quality time together. Also, we have a flat organization, with no unnecessary hierarchies and where you reach the management easily.

In Arnia you will meet very skilled software engineers with rich academic backgrounds, with passion for innovation and continuous education, self-driven and oriented toward results. At the same time, they are people with a high sense of humor, fun and informal, that value friendship, trust, and a nice working environment.

Excellence is achieved step by step, it is a journey we always take together as a team and as a modern organization.

We recognize the value of each individual, we value diversity and we support your development career – your success is our success! We take pride in helping our people to develop their career, continuously improving their skills and their technical knowledge and to fully reach their own development goals.

People are different, they are coming from various cultures and are motivated by different things:

• The financial interests
• The career development plan
• The technologies and the projects
• The work-life balance
• The opportunities to travel abroad

Why Arnia?

We recognize people’s diversity and we try to meet everyone’s goals.

• Game Evenings
• Nights Out
• Team Buildings
• Trainings

Arnia encourages you to pursue your own interests, projects, and ideas – passion can turn small things into big things – we want to be part of your own individual success. Let us know your ideas and your personal interests and we will find a way to support you.

We Offer

• Relocation Package
• Competitive Compensation Packages
• Flexible Working Hours
• Job Rotation
• Performance Bonuses
• Medical Benefits
• Attractive Projects
• International Work Experience
• Referral Program
• Learning Through Arnia Academy

And if you like all these, why don’t you join us?

Recruitment Process

Arnia Software has consolidated its position as a preferred IT outsourcing company in Romania and Eastern Europe, due to its excellent timely delivery and amazing development team.

Our Services Include

• Nearshore with Arnia Software
• Software Development Outsourcing
• Offshore Software Development
• Engagement Models
• Bespoke Software Development
• Staff Augmentation
• Digital Transformation
• Mobile App Development
• Banking Software Solutions
• Quality Assurance
• Project Management
• Open Source
• Nearshore Development Centre
• Offshore Development Centre

I joined the Arnia team in 2011 on the XpressEngine project (PHP based CMS, most popular in South-East Asia) and now I’m leading the team that develops our own CMS, Karybu. Also, our PHP team is involved in a lot more projects on different technologies ranging from Magento to WordPress and from Zend Framework to Symfony2.

Dan D., PHP Tech Lead @ Arnia

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