Machine Learning Engineer

The Position

We are looking for a driven and passionate Machine Learning Engineerwhowill own the data foundation the team runs on: dataset pipelines, labeling workflows, and data quality. Model quality is bottlenecked by data quality; this role removes that bottleneck. We've had a strong presence in Veszprém for over a decade, and we're now expanding into Budapest, this role is based in our newly opening Budapest office, right at the start of that growth.

You Will Have the Opportunity to

• Train and fine-tune models against curated datasets; run systematic hyperparameter and architecture experiments
• Build and maintain evaluation suites: regression tests for model behavior, benchmark tracking across model versions
• Analyze model failures (false positives/negatives) and translate findings into dataset or training improvements
• Package models with documentation, benchmarks, and reproducible evaluation results for Engine team handoff
• Contribute to internal tooling for experiment tracking and model comparison

What We Are Looking For

• 2+ years ML engineering or applied data science experience
• Strong Python; hands-on experience with modern training and fine-tuning workflows
• Experience with structured model evaluation (not just accuracy, precision/recall tradeoffs, drift, edge-case analysis)
• Comfortable working against defined acceptance criteria and production constraints

Why You'll Love Working Here

• Innovative Environment: Join a team at the forefront of cybersecurity innovation. At OPSWAT, you'll have the opportunity to work with cutting-edge technologies and contribute to solutions that shape the future of cybersecurity.
• Collaborative Culture: We foster a culture of collaboration, where every team member's input is valued. You'll have the chance to work alongside talented individuals who are passionate about cybersecurity and dedicated to making a difference.
• Professional Growth: At OPSWAT, we prioritize the growth and development of our team members. You'll have access to ongoing training and development opportunities to enhance your skills and advance your career in cybersecurity.
• Impactful Work: Join a mission-driven company that is committed to securing the digital world. Your work at OPSWAT will have a meaningful impact on organizations worldwide, protecting critical data and assets from evolving cyber threats.
• Fun and Dynamic Atmosphere: We believe in fostering a fun and dynamic work environment. From team-building activities to social events, you'll have plenty of opportunities to connect with your colleagues and enjoy the journey together.