Senior Java Developer + LLM
Newfire Global Partners.com
Hybrid
Croatia
Full Time
Senior Java Developer + Llm
- Department: Engineering
- Employment Type: Flexible
- Location: Croatia
- Reporting To: Andriy Lendyel
Description
Newfire Global Partners is a leading technology firm that specializes in building transformative software solutions for some of the world’s most innovative companies. With a presence across four continents, Newfire Global brings deep expertise in digital healthcare, AI-driven analytics, and enterprise technology. The firm’s track record of delivering scalable, high-impact solutions has made it a trusted partner for organizations seeking to drive meaningful change through technology.We are passionate about the purpose-driven mission to help improve the quality of care for patients and are building a collaborative, innovative, and inclusive culture. We are a fully funded company founded by serial entrepreneurs with a stable client base.
Opportunity for impact
Newfire Global Partners, a leader in developing disruptive healthcare technology, collaborates with Fortune 500 companies and start-ups to drive transformation.
Newfire is looking to hire a senior Java developer, starting November 1st, to expand its engineering team. This strategic hire in Latin America will help align with existing time zones. The ideal candidate should have experience with Java, LLMs, and cloud technologies.
What's the Project?
Our client is a large healthcare company that is working on several projects, such as a patient application for Android and iOS, an automation engine for internal clinic processes, a machine learning/large language model (LLM) application used by doctors for obesity care, and a separate web portal for new patients.
Your Day-To-Day Activities:
- Microservices Architecture: Experience in designing, developing, and deploying microservices-based applications. Must be able to apply a modular approach to buildingservices for maintainability and scalability.
- RESTful API Development: Expertise in designing and developing RESTful APIs for seamless communication between frontend and backend components and the otherintegrations with the third parties.
- Build & Dependency Management: Proficiency with Gradle for building and managing project dependencies.
- HIPAA Compliance: General awareness of HIPAA regulations and best practices for ensuring the security and privacy of patient health information (PHI).
- Communication & Teamwork: Excellent communication skills, both verbal and written, and a proven ability to collaborate effectively in a team environment.
- Problem-Solving & Analytical Skills: Strong problem-solving and analytical abilities, with a focus on delivering efficient and maintainable code.
You’Re A Perfect Match If You Have:
- Strong Java Expertise: 8+ years of hands-on experience in Java development, withproficiency in Java 21 and recent versions.
- Spring Boot: Extensive experience in Spring Boot 3 and related frameworks for buildingrobust and scalable backend systems.
- Proven experience in developing and implementing new automation workflows.
- Proficiency in API integration for both data retrieval and data entry between different systems (e.g., EHRs, internal platforms).
- Demonstrated experience leveraging Large Language Model (LLM) APIs (e.g., OpenAI) to build intelligent automation solutions.
- Ability to perform enhancements on existing systems, including creating new data tables and implementing minor code changes.
- Experience in the healthcare technology space, particularly with Electronic Health Records (EHRs), is a strong plus.
- Database Skills: Proven experience with PostgreSQL, including data modeling, query optimization, and performance tuning. Expertise in JPA for efficient data access and persistence.
- AWS Cloud Proficiency: Hands-on experience with AWS services such as Cognito, DynamoDB, S3, SES, SNS, Lambda, and others relevant to the project.
- Athenahealth Integration: Prior experience integrating with Athenahealth APIs or similar healthcare platforms.
- Performance Optimization: Expertise in identifying and addressing performance bottlenecks in Java applications and database interactions.
- Security Best Practices: Understanding of security principles and best practices for building secure backend systems, including encryption, access control, and vulnerability mitigation.
- Agile Development: Familiarity with Agile methodologies and tools for efficient project management and collaboration.
Senior Java Developer + LLM
Hybrid
Croatia
Full Time
September 18, 2025