Lead Full-Stack Engineer (Java) - Cloud, APIs, Multilingual

SoftServe; Poland; On-site; PLN 350,000 - 520,000; Full time

Job summary

SoftServe is seeking a senior software engineer to design and modernize digital solutions for Erasmus+ and European Solidarity Corps programs. You will work on multilingual, large-scale systems supporting grant lifecycles in an international environment.

The role emphasizes Java, Angular, REST APIs, cloud, Docker, Kubernetes, and security best practices, with a focus on scalable backend and frontend and collaboration with cross-border teams.

Qualifications

• Master’s degree or five years of higher education.
• 15+ years IT/full-stack software engineering experience.
• 10+ years with Java and SQL including Spring Boot, Hibernate, and PostgreSQL/Oracle/MongoDB.
• 5+ years with Angular and JavaScript, HTML, CSS.
• 4+ years with Kafka and distributed application integration.
• 2+ years with high-volume public-sector grant/funding systems and PM2-Agile.
• 2+ years developing multilingual web applications localized into 10+ languages and reusable Angular component libraries such as eUI.
• Strong RESTful API design, OpenAPI/Swagger, OAuth 2.0/OpenID Connect/JWT, Docker, Kubernetes, CI/CD, and AWS or Azure.
• C1+ English; EU public administration experience; French and AWS/Azure certs are a plus.

Responsibilities

• Design and develop scalable full-stack solutions using Java, Angular, databases, and REST APIs
• Build and maintain backend services and responsive front-end applications for high-volume, multilingual platforms
• Design secure APIs and system integrations, ensuring reliable communication across distributed services
• Develop database-centric functionality and optimize data access, queries, and application performance
• Apply security, testing, performance, and software engineering best practices throughout the development lifecycle
• Deploy and operate applications using cloud platforms, CI/CD pipelines, Docker, and Kubernetes
• Develop multilingual applications and reusable Angular components supporting consistent user experiences
• Troubleshoot complex technical issues, maintain technical documentation, and collaborate with international technical and business teams

Skills

Java

SQL

Spring Boot

Hibernate

PostgreSQL

Oracle

MongoDB

Angular

JavaScript

HTML/CSS

REST APIs

Docker

Kubernetes

OpenAPI/Swagger

OAuth 2.0 / OpenID Connect / JWT

AWS or Azure

English (C1)

Education

Master’s degree or five years of higher education

Job description

SoftServe is seeking a senior software engineer to design and modernize digital solutions for Erasmus+ and European Solidarity Corps programs. You will work on multilingual, large-scale systems supporting grant lifecycles in an international environment.

The role emphasizes Java, Angular, REST APIs, cloud, Docker, Kubernetes, and security best practices, with a focus on scalable backend and frontend and collaboration with cross-border teams.