Lead Full Stack Engineer (Java +Ang)

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

About The Role

In this role, you will develop and modernize digital solutions supporting the Erasmus+ and European Solidarity Corps programmes. You will contribute to large-scale, multilingual systems used to manage programme and grant lifecycles, working in an international environment supporting European Commission initiatives.

About The Role

In this role, you will develop and modernize digital solutions supporting the Erasmus+ and European Solidarity Corps programmes. You will contribute to large-scale, multilingual systems used to manage programme and grant lifecycles, working in an international environment supporting European Commission initiatives.

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

Requirements

• EQF Level 7 university degree (typically a Master’s degree or five years of higher education) and 15+ years of professional IT/full-stack software engineering experience
• 15+ years of hands‑on experience with Java and SQL, including Spring Boot, Hibernate, database design, query optimization, and PostgreSQL, Oracle, or MongoDB
• 10+ years of experience with Git, including GitFlow or trunk‑based development, and knowledge of SVN
• 5+ years of experience with Domain‑Driven Design (DDD) and Angular, including strong JavaScript, HTML, and CSS skills
• 4+ years of experience with Kafka and distributed application integration
• 2+ years of experience with high‑volume public‑sector grant or funding management systems and PM2‑Agile methodology
• 2+ years of experience developing multilingual web applications localized into 10+ languages and reusable Angular component libraries such as eUI
• Strong experience with RESTful API design and security, OpenAPI/Swagger, OAuth 2.0, OpenID Connect, JWT, Docker, Kubernetes, CI/CD, and AWS or Azure
• C1+ English proficiency; experience with EU institutional or public administration environments, French, and AWS/Azure developer certifications would be an advantage

SoftServe is an equal opportunity employer. Qualified applicants will receive consideration regardless of race, color, ancestry, ethnicity, national origin, religion, sex, sexual orientation, gender identity or expression, age, citizenship, disability, health condition, marital or family status, veteran status, or any other characteristic protected by applicable law.