Senior Java Software Engineer

EPAM Systems; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

EPAM Systems in the United States seeks a Senior Java Software Engineer to design, build, and maintain scalable backend services, with occasional Angular/TypeScript frontend support. You will champion engineering best practices, support delivery planning, and use AI-assisted tools like Copilot to improve efficiency and quality.

You will architect Java microservices with Spring Boot or Quarkus, develop RESTful APIs, and manage data via JPA/Hibernate on SQL Server.

Qualifications

• 5+ years of professional Java development with banking experience.
• Strong Java 8+ skills, solid OOP and design patterns.
• Advanced Spring Boot, Spring MVC, Spring Data or Quarkus expertise.
• REST APIs, JPA/Hibernate or Panache, and Maven proficiency.
• SQL Server knowledge with transactional data handling.
• Apache Camel hands-on experience.
• Git, Azure DevOps, and microservices familiarity.
• CI/CD pipelines and DevOps methodologies understanding.
• Angular/TypeScript basics with review and debugging skills.
• JUnit/Mockito unit testing proficiency.
• Analytical, problem-solving, and strong communication.
• Fluent Greek and English language skills.
• Nice to have Docker/Kubernetes exposure and ELK stack.
• Cloud experience (Azure/AWS/GCP).

Responsibilities

• Architect, build, and sustain backend Java services (8+) with Spring or Quarkus.
• Create RESTful APIs with versioning, docs, and performance focus.
• Persist data via JPA/Hibernate with SQL Server.
• Develop integration flows using Apache Camel with monitoring.
• Apply microservices best practices and resiliency patterns.
• Support CI/CD pipelines and releases with Git and Azure DevOps.
• Use Copilot daily for coding, refactoring, tests, and docs.
• Contribute to AI-enabled features and discuss LLM integration risks.
• Provide occasional Angular/TypeScript frontend support for fixes.
• Assist with AWS-based operations, IAM, logging, and monitoring.
• Diagnose issues, perform root-cause analysis, and deliver durable solutions.
• Collaborate in Agile ceremonies and guidance via code reviews.
• Mentor teammates and promote engineering best practices.

Skills

Java 8+

Spring Boot

RESTful APIs

JPA/Hibernate

Apache Camel

Microservices

Git

Azure DevOps

JUnit/Mockito

Angular/TypeScript basics

SQL Server

Docker/Kubernetes

Cloud (Azure/AWS/GCP)

ELK stack

Quarkus

Panache

Copilot / AI-assisted coding

Tools

Git

Azure DevOps

Docker/Kubernetes

Quarkus

Panache

SQL Server

ELK

Job description

We are seeking a Senior Java Software Engineer who will design, build, and maintain scalable backend services and integrations, while occasionally providing support to a modern Angular/TypeScript web frontend. This position requires championing engineering best practices, supporting delivery planning efforts, and utilizing AI-assisted engineering tools like Microsoft Copilot to improve efficiency and quality, along with a basic understanding of AI architecture to help shape AI-enabled features and system design choices.

Responsibilities

• Architect, build, and sustain backend services in Java (8+) leveraging Spring Boot/Spring ecosystem and/or Quarkus
• Create and refine RESTful APIs, covering contracts, versioning, documentation, performance, and backward compatibility
• Handle persistence and data access through JPA/Hibernate (or Panache) paired with Microsoft SQL Server
• Develop and maintain integration flows via Apache Camel, encompassing routing, transformation, retries, error handling, and monitoring
• Implement microservices best practices, including defining service boundaries, resiliency patterns, and operational readiness
• Support CI/CD pipelines and release workflows through Git and Azure DevOps
• Leverage Microsoft Copilot on a daily basis for coding assistance, refactoring, test creation, and documentation, confirming outcomes via reviews and automated testing
• Engage in solution design conversations around AI-enabled features, contributing practical understanding of LLM integration fundamentals, grounding principles, and associated risks
• Deliver occasional frontend support in Angular/TypeScript, covering minor fixes, small enhancements, and debugging of API/UI interactions
• Assist with application operations within AWS-based environments, maintaining basic familiarity with IAM, logging, and monitoring
• Diagnose production and non-production issues, conduct root-cause analysis, and deliver lasting solutions
• Work alongside the team on delivery planning, estimation, and progress monitoring, participating actively in Agile ceremonies
• Guide team members through code reviews, pair programming, and knowledge transfer to strengthen engineering practices and consistency

Requirements

• Over 5 years of professional Java development background, including prior experience in a comparable senior engineering position within Banking
• Strong command of Java 8+, with solid OOP capabilities, design pattern knowledge, and clean coding habits
• Advanced expertise in Spring Boot, Spring MVC, Spring Data and/or Quarkus
• Proficiency in RESTful APIs, JPA/Hibernate (or Panache), and Maven
• Solid understanding of SQL and Microsoft SQL Server
• Hands-on experience with Apache Camel
• Comfortable with Git, Azure DevOps, and microservices architecture
• Clear grasp of CI/CD pipelines and DevOps methodologies
• Capable of working with Angular and TypeScript basics, including code review, debugging, and small-scale implementation
• Skilled in unit testing with JUnit and Mockito
• Demonstrates strong analytical, problem-solving, and communication abilities, with a proactive mindset and capacity to work autonomously
• Fluent in both written and spoken Greek and English
• Nice to have Exposure to Docker/Kubernetes
• Understanding of cloud platforms such as Azure, AWS, or GCP
• Background working with Elastic Stack (ELK)