Machine Learning Engineer

Machine Learning EngineerMiejsce pracy: WarszawaTechnologies we useExpectedPythonPlaywrightSeleniumAbout the projectYou will be cooperating with a leading provider of AI evaluation and optimization solutions, trusted by multinational companies to optimize AI agents and detect performance issues in large language models.In this role, you’ll help develop advanced reinforcement learning (RL) environments and scalable evaluation systems that guide and shape the behavior of cutting-edge AI models. The company’s mission is to enable safe, verifiable, and aligned AGI through rigorous, real-world agent evaluation.Due to the client’s time zone, we would appreciate a candidate who can work until 5:00 p.m., or occasionally until 6:00 p.m. If you prefer working slightly later hours, that’s perfectly okay with the client - but it’s not a requirement.This is a 100% remote position, but if you enjoy working from an office, you’re warmly welcome to join us there too Your responsibilitiesDesign and implement RL environments that support large-scale agent evaluation and reinforcement learning experiments.Build task generation pipelines, dynamic datasets, and scripted environments with controlled complexity and stochasticity.Develop verifiers and reward models to automatically score trajectories and evaluate model reasoning.Collaborate with infrastructure and systems engineers to ensure environments are scalable, reproducible, and instrumented for detailed telemetry.Design APIs and orchestration frameworks for running, resetting, and evaluating agents across environments.Optimize environment performance, logging, and reward reproducibility across distributed setups.Our requirements5+ years of experience in software engineering, simulation systems, data science, or ML infrastructure.Strong command of Python and systems-level programming.Experience designing scalable task pipelines, browser or API simulations (e.g. Playwright, Selenium), or distributed compute frameworks.Understanding of RL concepts - reward modeling, environment dynamics, verifiability, evaluation, and agent interaction loops.Familiarity with instrumentation, metrics, and data pipelines for RL evaluation.Curiosity and conviction around building environments that steer AGI.OptionalA focus on AI/ML solutions.A Bachelor’s or Master’s degree in Data Science, Computer Science, Economics, or a related discipline.This is how we organize our workThis is how we workat the client's siteyou focus on a single project at a timeyou can change the projectyou focus on product developmentagileDevelopment opportunities we offerindustry-specific e-learning platformsspace for experimentingsubstantive support from technological leaderstime for development of your ideasWhat we offerGreat atmosphere - we value a friendly, informal atmosphere, and direct contact with everyone in the company.Outstanding People - we understand that great teams are about personalities, not just skills. Therefore our team accommodates a fantastic blend of individuals and management that removes roadblocks.Modern technologies - we use proven technologies that are currently up-to-date. Even if you have not used all of them, you can make up for it with usUnlimited possibilities - you’ll get the opportunity to develop your qualifications thanks to sponsorship for industry meetups and conferences and working on challenging international projects with the latest technologies.Private medical care and Multisport - we care about your health and wellbeing so you’ll get access to private medical care for you and your family, and partial funding for a sports card.Benefitssharing the costs of sports activitiesprivate medical caresharing the costs of professional training & coursesremote work opportunitiesflexible working timeintegration eventscorporate sports teamno dress codevideo games at workcoffee / teadrinksparking space for employeesleisure zoneextra social benefitsbaby layetteschool layetteemployee referral programcharity initiativescompany sports teamGift vouchers for kids (birthdays, Christmas, Child's Day)Recruitment stagesHR callTech check with our teamMeeting with our clientACAISOFT POLAND Sp. z o.o.At Acaisoft we specialize in cloud-native application development and transformations from legacy to cloud-native environments.We provide end-to-end software solutions, from business analysis, through project evaluation, to UI/UX, Frontend, and Backend design and implementation. We integrate manual and automated QA finest practices, to make sure that the final product is top-notch.Our customers range from startups to large enterprises based in the US, mainly Silicon Valley, and Western Europe.Since technology is constantly being developed at such a fast pace, we always strive to be one step ahead of the market and keep up with the latest solutions.Wszystkie informacje o przetwarzaniu danych osobowych w tej rekrutacji znajdziesz w formularzu aplikacyjnym, po kliknięciu w przycisk "Aplikuj Teraz".