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Thermo Fisher Scientific Logo

Sr. Software Engineer - Java Development

Thermo Fisher Scientific

$107,900 - $181,000
Nov 9, 2025
Tewksbury, MA, United States of America
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Thermo Fisher Scientific Inc. is seeking a Senior Software Engineer to develop and implement flawless solutions that impact global health and safety.

Requirements

  • Strong proficiency in Java (Java 8+) with deep experience in Spring Boot for building scalable, cloud-native applications.
  • Expertise in REST API design and development, including best practices for security, performance, and maintainability.
  • Solid understanding of object-oriented principles, design patterns, and data structures.
  • Experience with unit and integration testing frameworks such as JUnit and Mockito.
  • Strong hands-on experience with SQL databases and persistence frameworks (e.g., Hibernate, JPA).
  • Practical experience developing and deploying applications on the AWS Cloud platform.

Responsibilities

  • Lead the design, development, testing, and deployment of high-quality applications.
  • Participate in architecture and code reviews to ensure flawless performance.
  • Prioritize features and bug fixes to successfully implement project goals.
  • Mentor and provide technical leadership to junior engineers.
  • Stay updated with industry trends and continuously learn new technologies.
  • Work collaboratively with cross-functional teams to deliver outstanding products.

Other

  • U.S. citizenship is a requirement of this clearance process under federal law.
  • BS in Computer Science, Engineering, Chemistry, Mathematics, or equivalent experience with 7+ years of related experience in Java development.
  • Demonstrated experience working with geographically distributed teams.
  • Strong communication, collaboration, and mentoring skills, with the ability to lead technical discussions and contribute to architecture decisions.
  • This position is subject to the successful completion of a United States federal government Tier 3 security clearance.