Principal Solution Architect (Java)
Primary stack
Nice to have's
Job description
About the Position
Principal Solution Architect (Java)
About Onwelo
Onwelo is a technology partner that provides comprehensive services, from strategy and architecture to implementation and maintenance, in the areas of digital transformation, data, and automation. Our team consists of over 400 specialists with strong senior competencies, and we have completed over 300 projects for large organizations in Poland, Europe, and the USA. We operate from several Polish cities and from offices in Germany, Switzerland, and the USA, combining local presence with global reach.
About the Project
A project in the Healthcare sector, focusing on the development of modern solutions supporting diagnostic processes and medical data processing. The project environment emphasizes good engineering practices, teamwork, and delivering solutions that meet industry standards.
Responsibilities
- Development and maintenance of backend applications in Java
- Design and implementation of microservices-based solutions
- Creation and development of APIs and integrations between systems
- Collaboration in defining the architecture and direction of solution development
- Ensuring code quality through testing, code reviews, and best practices
- Optimizing performance, scalability, and reliability of developed systems
- Working with the project team to deliver business value
- Participation in requirements analysis and estimation of development work
- Sharing knowledge and supporting the technical development of the team
Requirements
- Minimum 10 years of commercial experience in Java programming
- Very good knowledge of Spring Boot and microservices architecture
- Experience in designing and implementing REST APIs
- Experience with SQL databases
- Familiarity with CI/CD tools and practices
- Experience in Healthcare projects - must have
- Knowledge of regulations and standards in the medical industry
- Experience in Finance projects - must have
- English at B2 level
Nice to Have
- Experience with systems processing large amounts of data
- Experience in defining solution architecture
- TOGAF certification
- Experience with cloud solutions (Azure, AWS, GCP)
We Offer
- Flexible hours and the possibility of hybrid or remote work
- Participation in interesting projects for global clients
- Up to 80% of promotions in our company are internal
- 90% of the management staff has a technical education
- Access to internal training and development paths
- Participation in team events, company meetings, and Town Halls
- Access to life insurance and private healthcare for you and your family
- MultiSport card, supporting health and fitness
Department
Software Development
Locations
Warszawa
Work Mode
Remote
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Financial Services,Healthcare,Manufacturing,ICT Platforms
About the Company Onwelo is a Polish technology company that supports organizations in building growth and efficiency through digital transformation, data analytics, and automation. The company provides end-to-end services from strategy and implementation to ongoing support. Onwelo believes technology can either slow organizations down or make them stronger and more adaptable. They design, build, and secure systems that support growth, taking full ownership of outcomes from strategy to production. The company has over 10 years of experience and more than 400 experts. Products, Services & Tech Stack Core Solutions Strategic Technology Consulting: Helping clients decide where to invest in technology and where to cut costs. Focuses on cloud strategy and system architecture that move the business forward. Intelligent Automation (RPA): Automating repetitive tasks that waste team time and create errors, allowing people to focus on decisions that matter. AI & Data Analytics: Turning data into actionable decisions, built for regulated industries where accuracy and compliance are critical. Cybersecurity: Designing systems that pass audits and protect assets, with compliance built in from the start. Technologies & Frameworks AI & ML: Predicting outcomes. Data Analytics: Driving insights. Automation: Reducing manual work. Cloud: Scaling infrastructure. Cybersecurity: Protecting assets. IoT: Connecting devices. QA: Ensuring quality. FinOps: Optimizing costs. Project Scope & Target Clients Client Base Financial Services: Supporting enterprise teams with data workflows, automation, and analytics that reduce manual load and improve operational oversight. Healthcare: Consolidating reporting and enabling near real-time visibility for production and planning teams. Manufacturing: Combining computer vision and analytics to support stable improvement over time. ICT Platforms: Delivering cloud migrations, data platforms, and managed services with governance and reliability designed for long-term operations. Engineering Scale Onwelo takes responsibility for results, timelines, and operational readiness, not only the delivery scope. They embed security, compliance, and audit requirements into architecture, delivery, and operations from day one. The company offers end-to-end ownership from strategy and architecture to deployment and managed services, providing one accountable partner across the lifecycle.
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