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Java Tech Lead Miejsce pracy: Kraków Technologies we use Expected Java AWS Spring Boot Maven PostgreSQL Jenkins Kubernetes Terraform Docker Operating system Windows About the project Lead with Impact as a Java Tech Lead! We are seeking a Java Tech Lead with a strong focus on backend development and intermediate experience in SRE/DevOps. In this role, you will be hands-on with development, mentor a team of engineers, and support their professional growth. You will collaborate closely with Principal Engineers, other Tech Leads, and the Head of Engineering to develop and maintain backend systems, ensuring high engineering standards. Sounds like your kind of challenge? Your responsibilities Design, develop, and maintain backend systems using Java. Actively contribute to software development and code reviews. Mentor engineers and support their technical growth. Collaborate with Principal Engineers, Tech Leads, and the Head of Engineering on technical decisions. Ensure the quality, architecture, and reliability of systems, including SRE/DevOps considerations. Note: Detailed project information will be shared during the recruitment process. Our requirements Experience & Leadership 5 years of experience in backend software engineering. Proven track record of delivering complex, large-scale systems. Strong technical leadership skills: decision-making, fostering team trust, removing roadblocks, and promoting autonomy with accountability. Core Concepts Test-Driven Development (TDD), Clean Code, SOLID principles, GoF Design Patterns. System and code architectures: Layered, Hexagonal, Modular Monolith, Microservices. API development, system design, and database fundamentals (RDBMS, NoSQL, ACID vs. BASE). Technology Stack Java 17/21, Spring Boot 3.x, Maven, PostgreSQL, JPA/Hibernate. AWS (EKS, EC2, ECS, Lambda, S3, Aurora, DynamoDB, VPC, Load Balancers, Route 53, SQS, SNS, Secrets Manager, CloudWatch, CloudTrail). Intermediate SRE/DevOps: Jenkins Groovy, Terraform, Kubernetes, Docker. Additional Skills CI/CD, observability, resilience, scalability, security, networking. Familiarity with decision-making frameworks (e.g., RAPID). Excellent communication and stakeholder management skills. Mindset Results-oriented, focused on improving KPIs and DORA metrics. Empowers teams, avoids micromanagement, and fosters continuous learning. This is how we organize our work This is how we work at the clients site agile scrum This is how we work on a project Continuous Deployment Continuous Integration What we offer Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.) Hybrid work setup – remote days available depending on the client’s arrangements Collaborative team culture – work alongside experienced professionals eager to share knowledge Continuous development – access to training platforms and growth opportunities Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more High quality equipment – laptop and essential software provided Benefits sharing the costs of sports activities private medical care sharing the costs of professional training & courses life insurance Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference. Mindbox Sp. z o.o. At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe. Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.