Bolt Technology

Technology

StaffMachineLearningEngineer,AIApplications

$480–720k ~AI est. Warsaw, Masovian Voivodeship, Poland Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Staff Machine Learning Engineer, AI Applications at Bolt Technology. Skills: Machine Learning, AI Applications, Knowledge systems, LLM evaluation. Lead alignment of AI system behaviour. Improve answer quality”

What You'll Achieve.

Improve answer quality; Improve consistency; Improve grounding; Improve escalation behaviour; Enable continuous improvement of automation quality

Industry & Context.

Technology
Problems you'll solve

Failure analysis

What They're Looking For.

Must Have

Hands-on experience with retrieval-augmented systems, Experience building feedback loops, Able to operate at strategic and hands-on levels, Communication and stakeholder management skills

Nice to Have

LLM-based pipelines experience, Agentic AI systems experience, Tool use experience, Routing experience, Memory experience, Multi-step reasoning experience, Human-AI orchestration experience

What You'll Do.

Lead alignment of AI system behaviour

Improve answer quality

Improve escalation behaviour

Build knowledge mining capabilities

Turn data into knowledge assets

Turn data into improvement signals

Own evaluation strategy for LLM systems

Develop feedback loops

Connect production failures to system improvements

Enable continuous improvement of automation quality

Partner with AI infrastructure engineers

Contribute ML expertise

Influence roadmap and technical direction

Bring clarity to trade-offs

How You'll Work.

Team & Collaboration

Partner closely with engineering; Partner with product; Partner with operations; Partner with domain experts; Work with cross-functional partners

Full Job Description

We are looking for a Staff Machine Learning Engineer, AI Applications to join Bolt’s Customer Support Product team and lead the quality, learning, and knowledge foundations behind our AI automation stack. You will have the opportunity to shape how we evaluate and align LLM-based systems, improve knowledge quality and retrieval, and build the feedback loops that continuously improve customer support automation. If you are passionate about applied ML, retrieval and knowledge systems, and making AI products measurably better in production, this role will perfectly suit you. About us With over 200 million customers in 50+ countries, Bolt is one of the fastest-growing tech companies in Europe and Africa. And it's all thanks to our people. We believe in creating an inclusive environment where everyone is welcome, regardless of race, colour, religion, gender identity, sexual orientation, national origin, age, or disability. Our ultimate goal is to make cities for people, not cars, and we need your help to achieve this mission! About the role As a Staff Machine Learning Engineer, you will operate at the intersection of advanced AI, knowledge systems, and Bolt’s production support ecosystem, setting the technical direction for how we measure, improve, and scale AI quality across conversational experiences. You will help ensure our systems are accurate, helpful, grounded, and aligned with business and customer needs. This is a high-impact, high-scope role where you will define the quality and learning strategy behind our AI systems, partner closely with engineering, product, operations, and domain experts, and turn real-world support interactions into durable improvements across models, retrieval, and workflows. You will work closely with engineers and cross-functional partners building Bolt’s AI automation stack, helping ensure our systems are not only scalable and reliable, but also grounded, aligned, and continuously improving in production. Main tasks and responsibilities

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