Cygnus Professionals Inc.
Website:
cygnuspro.com
Job details:
Location: Hyderabad work from office
We are seeking a highly skilled Senior Full Stack Java Developer with strong experience in Java 8/17, Spring Boot, Akka, React/Angular, and distributed systems. The ideal candidate will design, build, and maintain scalable microservices and modern web applications, working across both frontend and backend layers. This individual will collaborate closely with architects, product owners, UX designers, and cross-functional teams to deliver high-quality, on-premise and cloud-native solutions.
Key Responsibilities
- Design, develop, and maintain microservices-based applications using Java 8/17, Spring Boot, and Scala
- Build highly concurrent, fault-tolerant, and distributed systems using Akka (Actors, Streams, Cluster)
- Develop responsive and user-friendly web applications using React, Angular, TypeScript, JavaScript, HTML5, and CSS3
- Build and integrate RESTful and event-driven APIs with frontend applications
- Implement asynchronous and reactive programming models
- Develop reusable UI components and frontend frameworks following modern design patterns
- Collaborate with architects, UX/UI designers, and product teams on requirements analysis and system design
- Write clean, testable, and maintainable code following industry best practices
- Implement unit, integration, end-to-end, and performance testing
- Work with containerized environments (Docker, Kubernetes)
- Participate in code reviews, design discussions, and agile ceremonies
- Troubleshoot, optimize, and improve application performance, usability, and reliability
- Follow DevOps and CI/CD practices for automated builds and deployments
- Ensure application security, accessibility, and compliance with enterprise standards
- Support on-premises and cloud-native application development and deployment in Azure environments
Required Skills
Backend Development
- Strong hands-on experience with Java 8 and/or Java 17
- Extensive experience with Spring Boot
- Extensive experience in Akka:
- Akka Actors
- Akka Streams
- Akka Cluster
- Experience designing and implementing microservices applications
- Strong understanding of concurrency, multithreading, and asynchronous programming
- Knowledge of CQRS and Event Sourcing
- Hands-on experience with REST APIs, WebSockets, JSON, and Protobuf
- Experience with relational and NoSQL databases (SQL Server, Cassandra, CosmosDB)
- Familiarity with message brokers (Kafka)
Frontend Development
- Strong experience with React.js and/or Angular
- Proficiency in TypeScript, JavaScript (ES6+), HTML5, CSS3, and responsive web design
- Experience with state management frameworks such as Redux, NgRx, or Context API
- Experience integrating frontend applications with RESTful and WebSocket services
- Familiarity with component-based architecture and reusable UI frameworks
- Experience implementing responsive and cross-browser compatible web applications
- Understanding of UI/UX principles and accessibility standards (WCAG)
DevOps & Cloud
- Experience with Docker and Kubernetes
- Knowledge of CI/CD pipelines (GitHub Actions, Azure DevOps or similar CICD tools)
- Experience with Git-based source control and branching strategies
- Experience working with Azure, or GCP cloud services
- Familiarity with Infrastructure as Code (Terraform, Ansible)
Testing
- Experience with JUnit, Mockito, and integration testing frameworks
- Experience with frontend testing frameworks such as Jest, Cypress, Playwright, or Selenium
- Understanding of automated testing and quality engineering practices
Nice-to-Have Skills
- Experience with Reactive frameworks (Project Reactor, WebFlux)
- Experience in Scala development
- Familiarity with observability tools (Prometheus, Grafana, ELK, OpenTelemetry)
- Experience with performance tuning and load testing
- Exposure to Domain-Driven Design (DDD)
- Experience with Material UI, PrimeNG, Bootstrap, or similar UI frameworks
- Experience with MicroK8s, Azure Kubernetes Service (AKS)
- Knowledge of OAuth2, OpenID Connect, JWT, and enterprise security best practices
- Experience developing Progressive Web Applications (PWA)
- Familiarity with AI-assisted development tools such as GitHub Copilot.
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