Software Engineer

***********************************Immediate Joiners Only*************************************Job Title: Senior Java Developer (Reactive Microservices)Experience: 4 - 7 YearsDomain: Telecom / Communication ServicesRole SummaryWe are seeking a highly skilled and communicative Senior Java Developer to join our team. This role is crucial for developing high-performance, resilient, and scalable reactive microservices that power core customer-facing and internal systems within our Telecom platform. The ideal candidate will leverage their expertise in the Spring ecosystem, particularly Spring WebFlux, to build non-blocking APIs, and utilize Oracle for robust data persistence. A key expectation for this role is excellent communication and professionalism for regular client/stakeholder interaction.Key ResponsibilitiesTechnical Delivery & ArchitectureReactive Development: Design, develop, and maintain high-throughput, low-latency microservices using Java (8/11+) and the Spring Boot / Spring WebFlux reactive stack.Database Expertise: Design and optimize complex schemas, write highly efficient SQL/PL-SQL queries, stored procedures, and packages in Oracle Database to ensure optimal application performance.API Development: Implement and document robust, scalable, and secure RESTful APIs using principles of Reactive Streams (Mono/Flux) and non-blocking I/O.Integration: Work with messaging systems like Kafka, RabbitMQ, or JMS for asynchronous communication and data streaming.Quality & Testing: Own the code quality through unit (JUnit/Mockito), integration, and performance testing, ensuring compliance with coding standards and best practices.Troubleshooting: Analyze and resolve complex production issues, perform root cause analysis, and lead performance tuning efforts across the application and database layers.Client Interaction & CollaborationRequirements Gathering: Act as a technical liaison, directly interacting with business stakeholders and client product owners to clarify requirements, define technical feasibility, and translate complex business logic into technical user stories.Solution Presentation: Clearly articulate technical designs, trade-offs, and solutions to both technical and non-technical audiences, influencing decision-making with the client.Mentorship & Code Review: Conduct thorough code reviews, provide constructive feedback, and mentor junior developers on Reactive Programming principles and best practices.Agile Collaboration: Actively participate in all Agile ceremonies (Scrums, planning, retrospectives), ensuring timely delivery and clear communication of project status.Required Technical SkillsCore Java: Strong proficiency in Java 8+ features (Streams, Lambdas, Functional Interfaces).Spring Ecosystem: Expert-level knowledge of Spring Boot and Spring Framework (Core, Data, Security).Reactive Stack (Must-Have): Hands-on, practical experience (2+ years) with Spring WebFlux and Project Reactor (Mono & Flux) for building event-driven, non-blocking applications.Database: Proven expertise with Oracle (or equivalent RDBMS) including advanced SQL, query tuning, indexing, and data modeling.Microservices: Experience with Microservices architecture, REST principles, and inter-service communication patterns.DevOps/Tools: Familiarity with Git, Maven/Gradle, CI/CD tools (Jenkins/GitLab/Azure DevOps), and containerization (Docker/Kubernetes).Preferred Skills (Good to Have)Experience in development/configuration in Ericsson Order Care (EOC) and/or Ericsson Catalog Management (ECM) (ConceptWave).Experience with NoSQL databases (e.g., MongoDB, Cassandra).Familiarity with cloud platforms (AWS, Azure, or GCP).Knowledge of WebSockets for real-time communication.Company ProfileCreospan is a subsidiary of Creospan Inc., headquartered in Chicago, IL. Since our inception in 1999, we have grown into a leading technology consulting and solutions provider, serving clients across Telecom, Technology, Manufacturing, Ecommerce, Insurance, Banking, Transportation, and Healthcare industries. Our team specializes in emerging technologies, helping clients build next-generation products that drive innovation.For more details, visit: www.creospan.com