Senior Full-Stack Engineer (Java+React)

Meet your recruiter Khrystyna Derpak
Vacancy details
Software Engineering
Java Engineer
Senior
Bulgaria, 
Croatia, 
Poland, 
Portugal, 
Spain, 
Ukraine
Remote

As a Senior Full-Stack Engineer on the Digital Healthcare Team, you will play a critical role in the design and development of both backend services and user-facing features for our next-generation, data-driven healthcare applications. You will contribute to building a secure, scalable, and modular digital health platform that empowers patients and caregivers to manage chronic conditions more effectively. Your work will bridge frontend and backend layers, integrating rich interfaces with robust APIs and cloud infrastructure. This role requires strong expertise in Java and React development, deep understanding of healthcare data standards, and a commitment to privacy, accessibility, and user-centric design.

What project we have for you

Our mission is to chase the miracles of science to improve people’s lives. The client is a company expanding across borders, entering new domains, and evolving how they think and operate. We are assembling a world-class team to lead the success of a new digital healthcare initiative that aims to transform healthcare for all. People are the most critical ingredient to this success.

The Digital Healthcare Team is seeking a skilled and driven Senior Full-Stack Engineer to support the development and launch of cutting-edge digital care and life management program focused on diabetes and other chronic conditions. You will help build a comprehensive digital health ecosystem that integrates modular services – from remote monitoring to in-app messaging – into a seamless, accessible experience. You will collaborate across engineering, product, UX, and clinical teams to ensure the platform meets the needs of diverse users and healthcare providers.

What you will do

  • Design and implement robust frontend and backend components for the digital health platform, including modules for content display, patient monitoring, surveys, consent management, video consultations, messaging, and more.
  • Develop modular, reusable UI components in React, ensuring accessibility and responsiveness across devices.
  • Architect and build secure, scalable backend services and APIs in Java to support frontend features and external integrations.
  • Collaborate closely with UX, product, and clinical teams to deliver patient-centered user experiences.
  • Ensure seamless frontend-backend integration, managing data flow and error handling between systems.
  • Implement robust authentication and authorization flows using solutions like AWS Cognito.
  • Apply secure development practices, especially when handling PHI and sensitive personal data.
  • Set up and maintain monitoring, analytics, and error tracking tools (e.g., Sentry, Datadog, GA) to ensure application stability.
  • Participate in code reviews, testing strategy, and continuous improvement of engineering practices.
  • Work with DevOps and QA engineers to ensure CI/CD pipelines, test coverage, and deployment automation are in place.
  • Ensure compliance with regulatory requirements such as HIPAA, GDPR, and HITECH.
  • Contribute to scalable architecture decisions that support global growth and multi-condition support.
  • Support integration efforts with external platforms including EHR systems and third-party healthcare services.
  • Troubleshoot and resolve complex technical issues in production environments.

What you need for this

Requirements:

  • Bachelor’s degree in Computer Science, Software Engineering, HCI, or related field.
  • 5+ years of experience in frontend development using React and modern JavaScript/TypeScript.
  • 5+ years of experience in Java backend development with familiarity in modular services and cloud-native architecture.
  • 3+ years of experience working with cloud infrastructure (AWS).
  • Strong knowledge of RESTful API design, implementation, and integration with frontend applications.
  • Solid understanding of responsive design, WCAG accessibility standards, and cross-browser compatibility.
  • Experience with SQL and NoSQL databases and efficient schema design for large-scale data systems.
  • Familiarity with FHIR, HL7, and other healthcare interoperability standards.
  • Strong grasp of security and privacy best practices (HIPAA, HITECH, GDPR) for handling PHI.
  • Experience with CI/CD, testing frameworks (Jest, React Testing Library, JUnit, Cypress), and performance optimization.
  • Proficient with modern tooling such as Webpack, Babel, Redux, Storybook, and containerization technologies like Docker.
  • Experience with authentication/authorization solutions like AWS Cognito and Amazon API Gateway.

 

 Professional Skills / Competencies:

  • Proven ability to collaborate effectively across matrixed, global, and cross-functional teams.
  • Strong communication skills with the ability to explain technical solutions in clinical and non-technical contexts.
  • Comfortable working in fast-paced environments with shifting priorities and ambiguous requirements.
  • High cultural awareness and ability to build inclusive, respectful working relationships across time zones.
  • Passionate about improving healthcare access and user experience through scalable, secure technology.

 

What it’s like to work at Intellias

At Intellias, where technology takes center stage, people always come before processes. By creating a comfortable atmosphere in our team, we empower individuals to unlock their true potential and achieve extraordinary results. That’s why we offer a range of benefits that support your well-being and charge your professional growth.
We are committed to fostering equity, diversity, and inclusion as an equal opportunity employer. All applicants will be considered for employment without discrimination based on race, color, religion, age, gender, nationality, disability, sexual orientation, gender identity or expression, veteran status, or any other characteristic protected by applicable law.
We welcome and celebrate the uniqueness of every individual. Join Intellias for a career where your perspectives and contributions are vital to our shared success.

Skills

AWS
Java
React
SQL

Have not found the most
suitable position
yet?

Leave your resume and we will select a cool option for you.
Good news!
Link copied
Good news!
You did it.
Bad news!
Something went wrong. Please try again.