Senior Full Stack Developer (Java)

24 - 32 USDNet per hour - B2B
Java

Senior Full Stack Developer (Java)

Java
al. 3 Maja, Kraków +3 Locations

Grid Dynamics Poland

Full-time
B2B
Senior
Hybrid
24 - 32 USDNet per hour - B2B

Job description

We are seeking a Senior Full Stack Engineer to join our development team, focusing on building robust Java-based enterprise applications while heavily leveraging Agentic AI tools to drive efficiency and innovation.

In this role, you will be responsible for the end-to-end software development lifecycle, from backend services and database optimization to user-friendly frontend interfaces and secure CI/CD pipelines. A crucial aspect of this position is the daily, hands-on integration of AI-powered development tools to accelerate coding, code review, and problem-solving.

Tech Stack: Java, Spring Boot, Spring Security, Hibernate ORM, SQL (MySQL/PostgreSQL/Oracle), JavaScript (React/Angular/Vue.js), Jenkins, Docker, Kubernetes, RESTful APIs, Agentic AI (GitHub Copilot, ChatGPT, Claude, Cline)

Responsibilities:

  • Design, develop, and maintain full-stack applications using Java and modern web technologies.

  • Integrate Agentic AI tools (like GitHub Copilot, ChatGPT, Claude, and Cline) into daily development workflows to accelerate coding, code reviews, testing, and documentation.

  • Design, build, and maintain Jenkins CI/CD pipelines to optimize automated builds, tests, and deployments.

  • Implement robust cryptographic solutions and security protocols to protect sensitive data.

  • Write comprehensive unit and integration tests using JUnit, Mockito, and Cucumber to ensure high reliability.

  • Share best practices for AI tool usage across the team and continuously evaluate emerging Agentic AI technologies.

  • Debug complex technical issues, participate in code reviews, and collaborate closely with product, design, and QA partners within an Agile/Scrum framework.

Min requirements:

  • COMMERCIAL EXPERIENCE WITH AI TOOLS IS OBLIGATORY: You must have proven, commercial experience using AI-powered development tools (e.g., GitHub Copilot, ChatGPT, Claude, Cline) to accelerate software delivery.

  • 5+ years of hands-on software development experience with Java.

  • Strong proficiency in Spring Boot, Spring Security, and Hibernate/JPA.

  • Solid experience with frontend technologies (HTML5, CSS3, JavaScript, and frameworks like React, Angular, or Vue.js).

  • Strong, hands-on experience designing and maintaining Jenkins CI/CD pipelines.

  • Solid understanding of cryptography (encryption/decryption, digital signatures, and secure key management).

  • Experience with containerization (Docker, Kubernetes) and designing RESTful web services.

  • Strong background in automated testing (JUnit, Mockito).

Would be a plus:

  • 2+ years of experience in payment processing, fintech, or financial services.

  • Knowledge of payment protocols (ISO 8583, EMV), PCI DSS compliance, and financial regulations.

  • Experience with HSMs (Hardware Security Modules) and payment-industry cryptographic standards.

  • Experience with microservices, distributed systems, and cloud platforms (AWS, Azure, or GCP).

  • Knowledge of Android or iOS app development.

  • Contributions to open-source projects or active technical blogging.

We offer:

  • Opportunity to work on bleeding-edge projects

  • Work with a highly motivated and dedicated team

  • Competitive salary

  • Flexible schedule

  • Benefits package - medical insurance, sports

  • Corporate social events

  • Professional development opportunities

  • Well-equipped office

About us:

Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.

Tech stack

    English

    B2

    Java

    advanced

    Spring Boot

    advanced

    Angular

    regular

    Vue.js

    regular

    React

    regular

Office location

Senior Full Stack Developer (Java)

24 - 32 USDNet per hour - B2B
Summary of the offer

Senior Full Stack Developer (Java)

al. 3 Maja, Kraków
Grid Dynamics Poland
24 - 32 USDNet per hour - B2B
By applying, I consent to the processing of my personal data for the purpose of conducting the recruitment process. Informujemy, że administratorem danych jest Grid Dynamics Poland z siedzibą w Krakowie, al. 3 Maja 9, 30-062 (dalej jako "administrato... MoreThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Check similar offers
UNIQA

UNIQA

Warszawa

Hybrid

Hybrid

Undisclosed Salary
PostgreSQL
Angular
Microservices
Groovy
Kubernetes
Java
Oracle
Spock
Spring
Spring Boot
SeniorSeniorB2BB2B
New
ADVERTISEMENT: Recommended by Just Join IT
Salary
24 - 32 USD
Net per hour - B2B
Applied -
14 day left (until 04.07.2026)
Applied -
Check similar offers
UNIQA

UNIQA

Warszawa

Hybrid

Hybrid

Undisclosed Salary
PostgreSQL
Angular
Microservices
Groovy
Kubernetes
Java
Oracle
Spock
Spring
Spring Boot
SeniorSeniorB2BB2B
New
Billennium

Billennium

Hybrid

Hybrid

Undisclosed Salary
JUnit
Angular
Liquibase
Maven
Hibernate
Kubernetes
Jest
Java
Spring Boot
SeniorSeniorB2BB2B
New
Antal Sp. z o.o.

Antal Sp. z o.o.

Warszawa

Hybrid

Hybrid

Undisclosed Salary
Redis
TypeScript
CI/CD
Angular
Java
SQL
Oracle
Oracle SQL
Spring Boot
SeniorSeniorPermanentPermanent
New
Jit Team

Jit Team

Hybrid

Hybrid

5 395 - 7 013USD/month
Angular
Reactive Programming
Test Automation
Java
Spring Boot
SeniorSeniorB2BB2B
New
Citigroup

Citigroup

Warszawa

Hybrid

Hybrid

Undisclosed Salary
Java EE
Tomcat
Solace
RESTful
Java
SQL
Oracle
Tibco
JMS
J2EE
SeniorSeniorPermanentPermanent
New
ADVERTISEMENT: Recommended by Just Join IT