Senior Java Developer

🕒 September 10, 2025

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Netguru

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2008

☁️ SaaS

🏢 Enterprise

🤝 B2B

SaaS • Enterprise • B2B

Netguru is a consultancy, product design, and software development company based in Poznań, Poland. It provides a wide range of services from ideation, rapid prototyping, product strategy, and software development, to user experience and interface design. Netguru focuses on industries such as finance, retail, healthcare, and real estate, offering solutions like Modern Retail, Proptech, AI Development, and Mobile App design and development. The company also specializes in team augmentation and maintenance services, ensuring rapid and efficient delivery for its clients.

📋 Description

• Design, develop, and maintain backend systems using Java, Spring Boot, and AWS • Build RESTful APIs and define/maintain OpenAPI specifications • Package and deploy applications using Docker and manage deployments in AWS • Develop and optimize data models using JPA/Hibernate and PostgreSQL • Work with AWS services including IAM, Lambda, ECS, S3, AuroraDB, Cognito, API Gateway, ECR, CloudWatch • Implement secure authentication/authorization using OAuth2, OpenID Connect, JWT, SAML and integrate with Azure AD • Collaborate with Salesforce.com teams for API integration and auth flows • Apply Domain-Driven Design (DDD) principles to model complex business domains • Ensure best practices in code quality, security, and cloud architecture • Contribute to Agile ceremonies, planning, code reviews, and architecture discussions • Work in a cross-functional Agile environment collaborating with architects, DevOps engineers, and business stakeholders

🎯 Requirements

• 8+ years of hands-on experience with Java, JUnit, Spring Boot, JPA/Hibernate, SQL, PostgreSQL, REST, OpenAPI • 8+ years of experience working with Amazon Web Services, especially IAM, VPC, Cognito, API Gateway, Lambda, ECS, S3, ECR, AuroraDB, CloudWatch, AWS CLI • Strong experience with containerization and deploying applications using Docker in AWS environments • Good knowledge of Domain-Driven Design (DDD) • Experience with authentication and authorization standards (AD, Azure AD, SAML, JWT, OAuth2, OpenID Connect) • Experience with Salesforce.com (authentication, APIs, authorization) • Familiarity with LLMs, AI agents, and Model Context Protocol (MCP) • Solid understanding of data structures and application security principles • Experience with GitHub, GitHub Actions, JFrog Artifactory • Experience in Agile environments, ideally Scrum or SAFe • AWS Cloud Practitioner certification required • AWS Solutions Architect certification preferred • Strong communication skills and a proactive, team-oriented mindset • Fluent English (spoken and written); additional language skills are a plus

🏖️ Benefits

• 100% remote, flexible work; • work with an experienced team of developers and continuous development of your hard and soft skills; • dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes; • long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more); • disability-related recruitment process adaptations available upon request.