Senior Fullstack Developer (Java / Angular)
Primary stack
Nice to have's
Job description
About the Position
Senior Fullstack Developer (Java / Angular)
Onwelo is a technology partner providing comprehensive services from strategy and architecture to 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 offices in Germany, Switzerland, and the USA, combining local presence with global reach.
Responsibilities
- Development and maintenance of frontend (Angular) and backend (Java 21, Spring Boot) applications
- Creation and development of microservices and integration between systems
- Design and development of APIs and participation in building distributed architecture solutions
- Building, developing, and maintaining CI/CD processes using Git, Jenkins, Docker, and Kubernetes
- Conducting code reviews and ensuring quality
- Creating and updating technical documentation
- Collaborating with product, analytics, and technical teams to deliver solutions that meet business needs
- Participation in the full software lifecycle, from requirements analysis to implementation and production support
- Working in an Agile/Scrum environment and actively participating in project ceremonies
Requirements
- Over 10 years of experience as a Fullstack Developer on projects of similar scale
- Experience working in an Agile/SCRUM environment
- Practical experience with Java 21, Kotlin, and Angular
- Knowledge of Spring Boot and ability to build microservices and design REST APIs
- Experience with OKD, Camel, and Camunda
- Proficiency in using Git, Jenkins, and Docker
- Experience in test automation
- Experience with banking, insurance, or financial systems
- Ability to work in a CI/CD environment and container technologies
- English language proficiency at least at the B2 level
Nice to Have
- Experience with Kotlin
- Knowledge of OKD, Camel, and Camunda
- Familiarity with CI/CD processes
- English language proficiency
We Offer
- Remote work (except 1 day/month from the client's office in Warsaw)
- Participation in interesting projects for global clients
- 80% of promotions in our company occur internally
- 90% of the management staff have technical education
- Access to internal training and development paths
- Participation in team events, company meetings, and Town Halls
- Support in building a professional image (personal branding)
- Access to life insurance and private healthcare for you and your family
- MultiSport card supporting health and fitness
About the Company
Onwelo is a technology partner providing comprehensive services from strategy and architecture to 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 offices in Germany, Switzerland, and the USA, combining local presence with global reach.
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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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