Java Software Engineer

Backend Java Developer

About the Project

Join our team and work on a mature, feature-rich Project & Service Automation (PSA) platform, an enterprise-grade solution that powers project management, resource planning, time tracking, expense management, and business reporting for global customers. Our platform supports multi-tenant environments with complex business workflows, and we are actively expanding its capabilities with advanced AI/ML features.

Key Responsibilities

• Design and implement RESTful APIs following established architectural pattern
• Develop and maintain backend features for project management, resource allocation, time tracking, and expense management modules.
• Participate in AI/ML feature development using LangChain4j and Spring AI frameworks
• Work with ORM to build complex database queries and optimize data access layers
• Implement business logic for approval workflows and process automation
• Integrate third-party services (accounting systems, CRM platforms, authentication providers)
• Develop scheduled background, data synchronization, and forecasting
• Ensure proper security implementation through ACL and role based access control

Required Technical Skills

Technologies & Frameworks

• Backend : Spring Boot 3.x, Spring MVC, Spring AOP, Spring WebSocket
• ORM : Apache Torque with Criteria-based query building
• Database : PostgreSQL with pgvector for AI embeddings
• Security : OneLogin SAML, Google Authenticator, jBCrypt
• Integrations : QuickBooks SDK, Zapier, Google services, MPXJ

Architecture & Design Patterns

• Service Layer Pattern and Repository Pattern
• Singleton, Factory, and Decorator patterns
• Event-driven architecture (pub/sub, event listeners)
• Multi-layered architecture design
• Understanding of domain-driven design principles

Database & Data Management

• PostgreSQL or similar relational databases
• Transaction management and data integrity
• Query optimization and performance tuning
• Database migration and schema management
• Experience with Criteria based query builder

Experience Level

6+ 10 years of professional Java backend development experience with:

• At least 2 years working with Spring Framework
• Experience with enterprise-level applications
• Understanding of multi-tenant architectures (preferred)
• Exposure to project management or ERP systems (nice to have)

Soft Skills & Work Approach

• Problem Solving: Ability to navigate and understand large, complex codebases
• Code Quality: Writing maintainable, well structured code following established patterns
• Collaboration: Working with cross-functional teams (frontend, QA, product)
• Documentation: Creating clear technical documentation and code comments
• Learning Agility: Quickly understanding new domains and technologies
• Attention to Detail: Ensuring data integrity and business rule compliance in complex workflows

Desired Technical Skills

• Frontend Basics: Understanding of React and REST API consumption patterns
• Integration Experience: Webhooks, third-party API integration (QuickBooks, Zapier, etc.)
• Background Processing: Quartz scheduler or similar job scheduling frameworks
• Reporting Engines: Experience with data visualization and reporting libraries
• AI/ML Integration: LangChain4j, Spring AI, or similar AI frameworks

Why This Role is Interesting

• Complex Domain: Work on sophisticated business logic
• Architecture : Learn advanced patterns in multi-tenancy, event-driven design, and extensible systems
• Modern Tech: Actively integrating AI/ML capabilities into production
• Scale: Navigate and contribute to a large, mature codebase with established patterns
• Impact: Your work directly affects project management workflows for enterprise clients\
• Growth: Exposure to diverse technical challenges from scheduling algorithms to AI integration