Senior Backend Engineer

About Us
Zact is a Fintech innovator dedicated to a singular idea : Organizations need simpler expense and payment management systems that align the spending employee with finance and accounting while providing inherent guardrails and continuous reconciliation with financial systems.
Zact enables all parts of the company to Pay by the Rules.
Position Summary
We are seeking an experienced Senior Backend Developer to join our engineering team. The ideal candidate will bring deep expertise in Java development and enterprise application architecture, with a proven track record of delivering scalable, secure, and maintainable solutions.
Location
Zact is a global company with multiple locations across US, Europe and India.
We provide 100% Remote Working Option.
Candidates applying for this role should be located in one of the European or Indian Time zones.
Key Responsibilities
Design, develop, and maintain enterprise-grade Java applications using Spring Framework and related technologies
Architect and implement RESTful APIs following industry best practices and security standards
Collaborate with cross-functional teams to gather requirements and translate them into technical specifications
Mentor junior developers and contribute to technical decision-making
Participate in code reviews and ensure code quality standards are maintained
Troubleshoot and resolve complex technical issues in production environments
Required Qualifications
Minimum 10 years of Java and microservices development experience
Strong expertise in Spring Framework ecosystem
Deep understanding of RESTful API design principles and best practices
Experience implementing various authentication and authorization models (OAuth 2.0, JWT, RBAC)
Strong knowledge of relational databases and SQL
Preferred Qualifications
Experience with ESB implementations, particularly Apache Camel
Experience with ETL frameworks and data integration patterns
Knowledge of microservices architecture and distributed systems
Familiarity with container technologies (Docker, Kubernetes)
Experience with message brokers (Kafka, RabbitMQ)
Technical Skills
Languages: Java 8+, SQL
Frameworks: Spring Boot, Spring Security, Spring Data JPA
Integration: Apache Camel, REST APIs
Databases: PostgreSQL, MySQL, or similar RDBMS
Testing: JUnit, Mockito

Skills
Java, Spring Boot, Spring, REST API, Microservices, Kafka, RabbitMQ

Experience
10+ yrs

Work arrangement
Yes