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Senior Fullstack Developer (Java + React) - R01563758

Brillio • IT Consulting & Digital Transformation • AI Consulting & Integration • JavaScript • Java • SQL • 6 months ago
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Salary
≈ $25k – $62k per year (Estimated)
Location
Remote (Romania, EST hours)
Seniority
Senior · 6+ years exp

Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Apr 1, 2026. Brillio scores B on the Alion truth index.

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Brillio

Brillio is an American digital technology services company founded in 2014 that works on data engineering, cloud modernisation, customer experience platforms and applied artificial intelligence for large enterprises. Its clients are concentrated in banking and financial services, healthcare, technology and retail, and it positions itself around building and running digital products rather than the traditional labour-arbitrage outsourcing model. Headquartered in Edison, New Jersey with its largest delivery base in India, it is backed by Bain Capital and employs several thousand engineers across the United States, India, Mexico and Europe.
brillio.com • HQ: Edison, United States • Cloud Consulting & Migration • AI Consulting & Integration • Data Engineering & Migration Services • IT Consulting & Digital Transformation • 501-1000 employees • Est. 2014
Tech stack of Brillio

About the Role

We are looking for a highly skilled Senior Full Stack Developer (Java + React) to join our team and contribute to the development of a mission-critical enterprise payments platform.

You will be responsible for building secure, scalable, and high-performance applications that support payment processing, transaction management, and financial integrations. This role requires strong expertise across both backend and frontend technologies, as well as a solid understanding of payments systems and financial-grade applications.

Key Responsibilities

  • Design, develop, and maintain end-to-end full stack solutions using Java (Spring Boot) and React.
  • Build and enhance payment processing systems, including transaction workflows and integrations with external providers.
  • Develop secure and scalable RESTful APIs and backend services.
  • Implement responsive and high-quality user interfaces with React.
  • Ensure high availability, performance, and scalability of payment systems.
  • Apply secure coding practices aligned with financial and regulatory standards.
  • Collaborate with product owners, architects, QA, and DevOps teams to deliver robust solutions.
  • Participate in system design, architecture decisions, and code reviews.
  • Troubleshoot and resolve complex production issues.
  • Contribute to CI/CD pipelines, automated testing, and deployment processes.

Qualifications & Skills

  • 6+ years of experience in full stack development.
  • Strong expertise in Java and Spring Boot and React (modern hooks, state management)
  • Experience building enterprise-grade applications, preferably in payments or financial services.
  • Solid understanding of microservices architecture and distributed systems.
  • Experience with REST APIs, asynchronous processing, and messaging systems (e.g., Kafka, RabbitMQ).
  • Strong knowledge of SQL/NoSQL databases.
  • Familiarity with authentication and security standards (e.g., OAuth2, JWT, PCI-DSS awareness).
  • Experience with cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes).
  • Proficiency with Git and CI/CD tools.
  • Available to work 4-5 hours overlap with EST timezone
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