Junior ML Engineer

🏢 Summary: The role involves developing and maintaining backend components in Python while supporting the implementation of AI-driven features within products. The position focuses on integrating AI/ML components, working with data, and contributing to simple model development and backend services. It is suited for candidates with commercial Python experience and initial hands-on exposure to AI/ML technologies. 🗂️ Requirements: Minimum 2 years of commercial experience with Python, Hands-on experience with AI/ML features, Experience working with APIs, Experience developing backend services, Understanding of software development best practices 📃 Skills: Python, AI, ML, APIs, TensorFlow, PyTorch, scikit-learn, OpenAI, LLM, NLP, AWS, GCP, Azure 🏢 Description: We are looking for a Junior/Regular AI Engineer to join our team and support the development of AI-powered features within our products. This role is ideal for someone with solid Python skills and initial hands-on experience working with AI/ML components. Responsibilities Develop and maintain backend components using Python Support the implementation of AI-driven features and capabilities within products Collaborate with product and engineering teams to integrate AI solutions Work with data and assist in building simple ML/AI models or integrations Contribute to code quality, testing, and documentation Requirements Minimum 2 years of commercial experience with Python Initial hands-on experience with AI/ML features (e.g. working with models, APIs like OpenAI, basic ML pipelines, etc.) Understanding of software development best practices Experience working with APIs and backend services Good problem-solving skills and willingness to learn in the AI space Nice to have Experience with libraries/frameworks such as: TensorFlow, PyTorch, scikit-learn Familiarity with LLMs, NLP, or Generative AI Experience with cloud platforms (AWS, GCP, Azure) Basic knowledge of data engineering concepts We offer Opportunity to work on real AI-driven products Exposure to modern AI technologies and tools Supportive team and learning environment

🏢 Summary: The role involves developing and maintaining Python-based backend components while supporting the implementation of AI-driven features in products. The position focuses on integrating AI/ML solutions, working with data, and contributing to simple model development and backend services. It is suited for candidates with commercial Python experience and initial hands-on exposure to AI technologies. 🗂️ Requirements: Minimum 2 years commercial experience with Python, Hands-on experience with AI/ML features, Experience working with APIs, Experience developing backend services, Understanding of software development best practices 📃 Skills: Python, AI, ML, APIs, TensorFlow, PyTorch, scikit-learn, OpenAI, LLM, NLP, AWS, GCP, Azure 🏢 Description: We are looking for a Junior/Regular AI Engineer to join our team and support the development of AI-powered features within our products. This role is ideal for someone with solid Python skills and initial hands-on experience working with AI/ML components. Responsibilities Develop and maintain backend components using Python Support the implementation of AI-driven features and capabilities within products Collaborate with product and engineering teams to integrate AI solutions Work with data and assist in building simple ML/AI models or integrations Contribute to code quality, testing, and documentation Requirements Minimum 2 years of commercial experience with Python Initial hands-on experience with AI/ML features (e.g. working with models, APIs like OpenAI, basic ML pipelines, etc.) Understanding of software development best practices Experience working with APIs and backend services Good problem-solving skills and willingness to learn in the AI space Nice to have Experience with libraries/frameworks such as: TensorFlow, PyTorch, scikit-learn Familiarity with LLMs, NLP, or Generative AI Experience with cloud platforms (AWS, GCP, Azure) Basic knowledge of data engineering concepts We offer Opportunity to work on real AI-driven products Exposure to modern AI technologies and tools Supportive team and learning environment

🏢 Summary: Junior Software Engineer role focused on developing and maintaining mission-critical backend components in the financial and payments domain. The position involves feature delivery, participation in release processes, and engagement in DevOps and SRE practices within a modern engineering environment. It offers structured growth while working with technologies such as Microservices, Kafka, and GenAI tools. 🗂️ Requirements: 0–2 years professional software development experience, Familiarity with Java, Understanding of Microservices architecture, Knowledge of messaging patterns, Basic knowledge of SDLC and production-ready code practices, Willingness to work in evolving greenfield environment, Ability to work in Agile team, Openness to learning new backend technologies 📃 Skills: Java, Microservices, Kafka, GenAI, DevOps, SRE, Agile, SDLC, AI, DataEngineering, Messaging 🏢 Description: Junior Software Engineer (Java) Salary: 70–85 PLN/h Work Model: Hybrid - 3 days per week from the Warsaw office Join our growing engineering team supporting a global leader in the financial and payments sector. As a trusted technology partner, we help organizations build and maintain mission-critical systems while embracing modern engineering practices. We’re looking for a proactive Junior Software Engineer (Java) who is eager to learn, grow, and contribute to impactful solutions within a high-standard engineering environment. What You’ll Do • Develop and deliver features within assigned components under guidance from senior engineers • Contribute to code quality, testing, and participate in the release process • Collaborate with cross-functional teams in an Agile environment • Support DevOps and Site Reliability Engineering (SRE) activities • Leverage modern tools, including GenAI, to enhance development efficiency • Continuously learn and adapt to new backend technologies and evolving project needs What You Bring • 1–2 years of experience in software development • Basic knowledge of Java and Microservices architecture • Familiarity with messaging systems (e.g., Kafka) is a plus • Understanding of the software development lifecycle and best practices for stable, production-ready code • Strong communication skills and willingness to learn from experienced engineers • Open mindset and adaptability to work in a dynamic, evolving environment • Fluent in English • Must be located in Poland Agile Experience • Basic understanding of Agile/Scrum methodologies • Ability to work in a collaborative, fast-paced team environment Nice to Have • Interest in areas such as AI, Data Engineering, or distributed systems • Experience with AI coding assistants (e.g., Claude AI / Claude Code) • Exposure to cloud platforms or DevOps practices What We Offer • Work in international teams (Poland, UK, US) • Structured development path with mentorship from senior engineers • Exposure to cutting-edge technologies, including GenAI and AI Agentic systems • Opportunity to grow within a high-impact financial domain

🏢 Summary: Machine Learning Engineer role focused on designing, deploying, and operating enterprise-grade classical ML and Generative AI solutions. The position involves building end-to-end ML pipelines, integrating LLM-based applications, and ensuring production stability in cloud-based environments. The role includes hybrid work, ongoing training opportunities, and a flexible benefits platform. 🗂️ Requirements: Degree in Computer Science, Data Science, Mathematics or related field, Experience delivering Generative AI solutions, Knowledge of LLM architectures and limitations, Strong Python engineering skills, Experience with Git-based version control, Experience working with CI/CD pipelines, Experience with ML and GenAI platforms, Experience with cloud environments, Fluent English, Fluent Polish, Availability for hybrid work with 1–2 office visits per week 📃 Skills: Python, Git, CI/CD, Databricks, AWS, Azure, GCP, LLM, GenAI, MachineLearning 🏢 Description: Responsibilities As a Machine Learning Engineer with a focus on classical ML as well as Generative AI, you are responsible for the technical design, implementation, and operation of enterprise-grade ML & GenAI solutions. You work in a tandem setup with an internal colleague who manages stakeholder communication and overall delivery, allowing you to concentrate on the technical realization, integration, and operational stability of ML & GenAI use cases. Design, train and optimize classical machine learning and Generative AI models for enterprise-grade use cases Build and maintain end-to-end ML and GenAI pipelines including data preparation, feature engineering, training, validation, deployment and monitoring Ensure robustness, performance and reproducibility of ML and GenAI solutions running in production Integrate LLM-based solutions using APIs and GenAI frameworks into existing system landscapes Collaborate closely with internal ML engineers and data teams on technical design, implementation and operational topics Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Successfully completed university degree in Computer Science, Data Science, Mathematics or a related field Practical experience delivering Generative AI solutions and a solid understanding of LLM architectures and limitations Strong Python engineering skills, including clean code practices and software engineering best standards Hands-on experience with Git-based code versioning and working with CI/CD pipelines as a user Experience with productive ML and GenAI platforms and cloud-based environments (e.g. Databricks, AWS, Azure or GCP) Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: The offer is for a Machine Learning Engineer responsible for designing, implementing, and operating enterprise-grade Machine Learning and Generative AI solutions. The role focuses on building end-to-end ML and GenAI pipelines, integrating LLM-based solutions, and ensuring production robustness and performance. You will concentrate on technical delivery and system integration within cloud-based environments. 🗂️ Requirements: University degree in Computer Science, Data Science, Mathematics or related field, Practical experience delivering Generative AI solutions, Strong understanding of LLM architectures and limitations, Strong Python engineering skills, Experience with Git-based version control, Experience working with CI/CD pipelines, Hands-on experience with ML and GenAI platforms, Experience with cloud environments (AWS, Azure, GCP or Databricks), Experience building and operating production-grade ML systems 📃 Skills: Python, MachineLearning, GenerativeAI, LLM, Git, CICD, Databricks, AWS, Azure, GCP, APIs, MLOps 🏢 Description: Responsibilities As a Machine Learning Engineer with a focus on classical ML as well as Generative AI, you are responsible for the technical design, implementation, and operation of enterprise-grade ML & GenAI solutions. You work in a tandem setup with an internal colleague who manages stakeholder communication and overall delivery, allowing you to concentrate on the technical realization, integration, and operational stability of ML & GenAI use cases. Design, train and optimize classical machine learning and Generative AI models for enterprise-grade use cases Build and maintain end-to-end ML and GenAI pipelines including data preparation, feature engineering, training, validation, deployment and monitoring Ensure robustness, performance and reproducibility of ML and GenAI solutions running in production Integrate LLM-based solutions using APIs and GenAI frameworks into existing system landscapes Collaborate closely with internal ML engineers and data teams on technical design, implementation and operational topics Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Successfully completed university degree in Computer Science, Data Science, Mathematics or a related field Practical experience delivering Generative AI solutions and a solid understanding of LLM architectures and limitations Strong Python engineering skills, including clean code practices and software engineering best standards Hands-on experience with Git-based code versioning and working with CI/CD pipelines as a user Experience with productive ML and GenAI platforms and cloud-based environments (e.g. Databricks, AWS, Azure or GCP) Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Junior Manual Tester role in an international lottery project, focused on executing and designing manual tests in an Agile environment. The position involves functional, regression, integration, and UAT testing, data validation with SQL, and defect management using JIRA. It offers hands-on experience with modern QA standards and close collaboration with development teams. 🗂️ Requirements: Minimum 2 years of experience in Software QA/Manual Testing, Knowledge of Functional, Regression, Integration, and UAT testing, Experience in manual test case creation and execution, Knowledge of SQL and PostgreSQL for data validation, Experience with JIRA or similar ALM tools, Experience working in Agile/Scrum methodology 📃 Skills: QA, ManualTesting, FunctionalTesting, RegressionTesting, IntegrationTesting, UAT, SQL, PostgreSQL, JIRA, Agile, Scrum 🏢 Description: We are looking for a motivated Junior Manual Tester to join a project delivered for an international client in the lottery industry. This is a fantastic opportunity for someone early in their QA journey who wants to grow, learn from experienced professionals, and gain hands-on exposure to the modern technologies and international project standards. Our expectations At least 2+ years of experience in Software QA/Manual Testing. Good understanding of software testing fundamentals (Functional, Regression, Integration, and UAT testing). Experience with manual testing, test case creation, and execution. Good knowledge of SQL/PostgreSQL for data validation. Experience with JIRA or similar ALM tools for defect management and reporting. Good English skills (minimum B2) – used daily in an international environment. Ability to work in a collaborative Agile/Scrum team. Openness for hybrid work from office in Warsaw (2-3 days a week in the office). Welcome Skills API testing (Postman, Swagger) An ISTQB Foundation Level certification. Familiarity with cloud platforms (AWS, Azure, or GCP). Knowledge of Kafka or event-driven/microservices architecture. Prior experience or interest in the Gaming/iGaming industry. Key tasks Design and execute manual test cases based on project requirements. Perform functional, regression, integration, and UAT testing. Test REST APIs using tools like Postman or Swagger. Validate data and backend behavior using SQL queries. Identify, report, and track bugs in JIRA (defect management). Collaborate closely with developers. Participate in Agile ceremonies. Contribute to improving QA processes and documentation for the lottery project.

🏢 Summary: Junior Backend Java Developer role focused on building and maintaining scalable backend systems using modern Java and Spring technologies in an international, Agile environment. The position involves developing secure, high-quality applications and collaborating within a hybrid work model. 🗂️ Requirements: Java 17+, Spring / Spring Boot / Spring Security, Maven, SQL, Git (GitHub, CI/CD basics), Experience with unit testing, English B2/C1, Around 2 years of commercial experience, Degree in Computer Science or related field 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, Maven, SQL, Git, GitHub, CICD, UnitTesting 🏢 Description: Junior Backend Java Developer Location: Warsaw, Poland (hybrid – 2 days/week in the office) About the Role We’re looking for a Junior Backend Java Developer to join a team building scalable, modern backend systems for international products. You’ll work in a collaborative environment with a strong focus on learning, ownership, and quality. Responsibilities Develop and maintain backend applications using Java 17+ and Spring Boot Ensure performance, scalability, and security of solutions Work with SQL databases (e.g. PostgreSQL) Support deployments using Docker, Kubernetes, and Helm Use Bash/Shell for automation tasks Collaborate in Agile (Scrum) teams and communicate in English Requirements Java 17+, Spring / Spring Boot / Spring Security Maven, SQL, Git (GitHub, CI/CD basics) Experience with unit testing English B2/C1 Around 2 years of commercial experience Nice to Have PostgreSQL, Hibernate/JPA Kubernetes, Helm Kafka, microservices Bash/Shell or Python CI/CD tools, JIRA Monitoring tools (Grafana, Prometheus) Security basics (OWASP) Qualifications Degree in Computer Science or related field

🏢 Summary: Junior Java Developer role focused on building new features, resolving customer issues, and improving internal tooling in a collaborative Agile environment. The position offers mentorship from Senior engineers and a hybrid work model with 3 days per week in the Gdansk office. 🗂️ Requirements: 1+ years of Java development experience, Basic Agile development knowledge, Familiarity with dependency injection concepts, HTML and web development experience, Strong communication skills, Collaborative mindset, Upper-Intermediate English level (B2) 📃 Skills: Java, Agile, Guice, Spring, HTML, SQL, Spanner 🏢 Description: We are seeking a motivated Junior Java Developer to join our engineering team. In this role, you will contribute to building new features and addressing customer issues while learning from experienced Senior engineers. This is an excellent opportunity to grow your technical skills in a collaborative environment. This role offers a hybrid model, with 3 days per week working from the client's office in Gdansk. Responsibilities Develop new features under the guidance of Senior engineers Resolve customer issues in a timely and effective manner Improve key internal tooling to increase reliability and usability Write clean, maintainable Java code aligned with team practices Collaborate across the engineering stack to deliver end-to-end changes Clarify and prioritize client requests through clear communication Participate in Agile development activities and contribute to team delivery Requirements 1+ years of Java development experience Basic Agile development knowledge Familiarity with dependency injection concepts (Guice or Spring) HTML and web development experience Strong communication skills to clarify and prioritize client requests Collaborative mindset to work effectively with Senior project engineers and the team Upper-Intermediate English level (B2) Nice to have Basic SQL knowledge Data pipelines experience Spanner experience EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Junior Java Engineer role focused on developing and maintaining mission-critical systems in the data center domain, contributing to scalable and high-performance solutions. The position involves feature development, code improvement, and collaboration with clients and cross-functional teams. It offers growth opportunities while working with modern Java-based technologies. 🗂️ Requirements: 1+ years of experience in software development, 1+ years of hands-on experience in Java development, Experience across full system implementation lifecycle, Familiarity with JUnit and Mockito, Knowledge of SQL, English proficiency at B2 level or higher, Ability to develop and maintain scalable systems 📃 Skills: Java, JUnit, Mockito, SQL, GCP, Guice, ProtocolBuffers, gRPC, TypeScript 🏢 Description: We are seeking a Junior Java Engineer to join our innovative team at EPAM, working on mission-critical systems for the data center domain. This is an exciting opportunity to grow your skills by contributing to impactful projects with a client who is a global leader in the technology sector. Responsibilities Develop new features and improve existing code for better readability and performance Learn project-specific domains and technologies, supporting both development and maintenance activities Communicate directly with clients and stakeholders regularly to ensure alignment and progress Collaborate with a skilled team to design and implement scalable, high-performance systems Deliver quality software solutions within agreed deadlines as part of an autonomous engineering team Requirements 1+ years of experience in software development and integration across the full system implementation lifecycle Background in Java development with 1+ years of hands-on experience Familiarity with Java, JUnit, Mockito, and SQL Strong proficiency in English (B2+) for client-facing communication and collaboration Excellent self-management and task prioritization capabilities Nice to have Expertise in Google Cloud Platform (GCP) Familiarity with Google Guice, Protocol Buffers, or gRPC Knowledge of TypeScript We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Junior Java Engineer role focused on developing and maintaining mission-critical systems in the data center domain. The position involves building new features, improving existing code, and contributing to scalable, high-performance solutions within an autonomous engineering team. It offers hands-on experience across the full development lifecycle in a client-facing environment. 🗂️ Requirements: 1+ years of software development experience, 1+ years of hands-on Java development, Experience across full system implementation lifecycle, Familiarity with JUnit, Familiarity with Mockito, Knowledge of SQL 📃 Skills: Java, JUnit, Mockito, SQL, GCP, Guice, ProtocolBuffers, gRPC, TypeScript 🏢 Description: We are seeking a Junior Java Engineer to join our innovative team at EPAM, working on mission-critical systems for the data center domain. This is an exciting opportunity to grow your skills by contributing to impactful projects with a client who is a global leader in the technology sector. Responsibilities Develop new features and improve existing code for better readability and performance Learn project-specific domains and technologies, supporting both development and maintenance activities Communicate directly with clients and stakeholders regularly to ensure alignment and progress Collaborate with a skilled team to design and implement scalable, high-performance systems Deliver quality software solutions within agreed deadlines as part of an autonomous engineering team Requirements 1+ years of experience in software development and integration across the full system implementation lifecycle Background in Java development with 1+ years of hands-on experience Familiarity with Java, JUnit, Mockito, and SQL Strong proficiency in English (B2+) for client-facing communication and collaboration Excellent self-management and task prioritization capabilities Nice to have Expertise in Google Cloud Platform (GCP) Familiarity with Google Guice, Protocol Buffers, or gRPC Knowledge of TypeScript We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.