Java Backend Developer – Spring WebFlux

Position-Tech Lead

Experience: 8-10

Job Location: Pune 

We are seeking a highly skilled Tech Lead with strong expertise in Java, microservices architecture, and cloud-native application development. The ideal candidate will bring hands-on leadership experience in designing scalable solutions, guiding development teams, and collaborating with DevOps engineers on OpenShift (OCP) platforms. This role requires a blend of technical leadership, solution design, and delivery ownership.

Key Responsibilities

Lead the design and development of Java / Spring Boot based microservices in a cloud-native environment.

Provide technical leadership to a team of developers, ensuring adherence to coding, security, and architectural best practices.

Collaborate with architects and DevOps engineers to deploy and manage microservices on Red Hat OpenShift (OCP).

Oversee end-to-end delivery including requirement analysis, design, development, code review, testing, and deployment.

Define and implement API specifications, integration patterns, and microservices orchestration.

Work closely with DevOps teams to integrate CI/CD pipelines, containerized deployments, Helm, and GitOps workflows.

Ensure application performance, scalability, and reliability with proactive observability practices (Grafana, Prometheus, etc.).

Required Skills & Qualifications

8-10 years of proven experience in Java application development with at least 4+ years in microservices architecture.

Strong expertise in Spring Boot, REST APIs, JPA/Hibernate, and messaging frameworks (Kafka, RabbitMQ, etc.).

Hands-on experience with containerization (Docker) and orchestration (OpenShift/Kubernetes).

Familiarity with OCP DevOps practices including CI/CD (ArgoCD, Tekton, Jenkins), Helm, and YAML deployments.

Good understanding of observability stacks (Grafana, Prometheus, Loki, Alertmanager) and logging practices.

Solid knowledge of cloud-native design principles, scalability, and fault tolerance.

Exposure to security best practices (OAuth, RBAC, secrets management via Vault or similar). 

Job Summary

We are seeking an experienced Java + Kafka Developer to design, develop, and maintain high-performance, event-driven applications. The ideal candidate will have strong backend development skills in Java and hands-on experience with Apache Kafka for building scalable, real-time data processing systems.

Key Responsibilities

• Design and develop event-driven microservices using Java and Apache Kafka
• Build and maintain Kafka producers, consumers, topics, and streams
• Implement message processing, retries, error handling, and idempotency
• Develop and integrate RESTful APIs
• Ensure high availability, scalability, and performance of Kafka-based systems
• Monitor, troubleshoot, and optimize Kafka and application performance
• Collaborate with architects, DevOps, and QA teams
• Participate in code reviews and follow best practices
• Contribute to system design and technical discussions

Required Skills

• 6+ years of experience in Java backend development
• Strong hands-on experience with Apache Kafka
• Experience with event-driven and streaming architectures
• Solid understanding of microservices architecture
• Experience with REST APIs
• Good knowledge of multithreading, concurrency, and JVM concepts
• Familiarity with SQL / NoSQL databases
• Strong problem-solving and debugging skills

JD

·       Minimum 4-18 Years of Core Java Programming with spring boot Framework,Design patterns Concurrent Programming, Multi-threading (Good knowledge in Executor service, Forkjoin pool and other threading concepts)

·       Good knowledge of the JVM with an understanding of performance and memory optimization.

·       Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).

·       Excellent knowledge on collections like, Array List, Vector, LinkedList, Hashmap, HashTable, HashSet is mandate.

·       Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.

·       Expert level understanding of Object Oriented Concepts and Data Structures

Location - Only Bangalore

Notice period - Immediate or Serving

Shift: 11 am to 8 pm

Hands on skills on the following technologies:

• Kafka Streams
• CassandraDB
• MS SQL SERVER
• Liquibase
• Maven, GIT, JUNITS

Mandatory skills:

• Java 17
• Spring Boot
• Spring Cloud
• Spring JPA
• Apache Kafka
• Microservices

Job Description

We are looking for Advance Java developers who want to help us design cutting edge scalable products to meet our rapidly growing business. We are building out a team and looking for multiple levels but you should have at least 4-6 years of programming experience.

Key Responsibilities

         Build high availability and extreme reliable high volume transactional systems.

         Deliver reliable solutions that handle massive data and high traffic.

         Complete ownership of problem-free execution of owned modules and solutions.

         Focus on code optimization, code quality, maintainability etc.

         Team Handling.

Skills required

         MS or BS/B.Tech / MCA in computer science.

         Hands-on experience in Core J2EE or Core Java (collection, multithreading).

         Proficiency in Struts 2.0 & Springs, Hibernate, JDBC, JSP, Servlets , JMS / Radius, Redis , Microservices , 

         Strong working knowledge of Databases – MySQL, OS - Linux.

         Experience and knowledge of open source tools & frameworks, broader cutting edge          technologies around server side development.

         Excellent data structure & algorithm and problem solving skills.

         Customer-focused, react well to changes, work with teams and able to multi-task.

         Must be a proven performer and team player that enjoy challenging assignments in a high-energy, fast growing and start-up workplace.

         Must be a self-starter who can work well with minimal guidance and in fluid environment.

Note: Must have worked on Payment Gateway Development.

Must be willing to work in a startup fast paced environment.

Joining : Immediate

Are you looking for a Senior Backend Engineer role in a high growth startup? Are you eager to learn and make a difference at work every day? If so, then read on.

At PlumQR, we work on revolutionizing the Food & Beverage industry with our cloud-based tech products. Millions of businesses across the world are switching for better, smarter & more hygienic products to reinvent their businesses. If you have what it takes to innovate & lead, we have just the right opportunity for you.

Requirements

• Minimum 3 years as a Senior Backend Engineer
• Strong software development experience in a SaaS product company
• Significant experience with NodeJS, React.js, React Native, MySQL, MongoDB, Java
• Cloud computing services (e.g. Google Cloud Platform)
• Strong problem-solving skills
• Ability to explain technical details to people inside the company

Must Haves

• Programming experience with at least one modern language such as Java, C++, or C# including object-oriented design
• 1+ years of experience contributing to the architecture and design (architecture, design patterns, reliability, and scaling) of new and current systems.
• 4+ years’  work experience in  software development
• BS degree or higher in Computer Science, Engineering or related field
• Understanding of operating system fundamentals (Linux)
• Understanding of scalable computing systems, software architecture, data structures, and algorithms
• Knowledge of professional software engineering best practices for the full software development life cycle
• Strong verbal and written communication skills
• Strong analytical skills, with excellent problem solving abilities
• Working experience with Kubernetes
• Experienced working with distributed databases at scale

Good to haves

• Experience in developing software using AWS native services & technologies.
• Experience taking a lead role in building and operating scalable distributed systems
• Experience in Agile/SCRUM enterprise-scale software development
• Familiar with building secure software using modern security principles
• Demonstrated ability to achieve goals in a highly innovative and fast-paced environment

Why us

We're hiring a set of highly skilled, enthusiastic, and passionate people who thrive in a high-growth environment. We believe the best way to grow is to give everyone the opportunity to pursue their interests. At Lucidity, you have complete freedom to work on projects that interest you. Plus, with benefits like flexible hours, company offsites, unlimited leaves, we ensure you enjoy the journey as much as we do. We are also offering healthy founding team ESOP's.

Please find the JD Below:

Job title- ATL/Technical Lead

Experience

1. Must have experience
   1. Extensive product development experience
   2. 5-10 years experience in back end Java Development
   3. Possess advanced knowledge of object-oriented design and development (OOA/OOD). 
   4. Team task assignment, mentoring and helping resolve issues 
   5. Self-starter, ability to work with minimal supervision.
   6. Skilled at working collaboratively in a team-oriented environment. 
   7. Excellent problem-solving skills. Curious and adept at researching project-related issues and challenges.
   8. Excellent debugging skills

1. Good to have
   1. Experience in SOA and microservice deployment model.
   2. GWT development experience
   3. Experience of working in an Agile development model
   4. Mixed experience in different type of organizations - product start up and large enterprises

Other Skills

1. Strong Analytical skills
2. Acumen for understanding customer's business goals
3. Process oriented- Following current processes and partner in process improvement.
4. Data oriented- Using data and knowledge base for solving current problem at hand and creating software knowledge base for future use.
5. Ability to juggle multiple development and design tasks simultaneously.

• Own and drive business features into tech requirements
• Design & develop large scale real time server side systems
• Quickly create quality prototypes
• Staying updated on emerging technologies
• Ensuring that all deliverables adhere to our world class standards
• Promote coding best practices
• Mentor and develop junior developers in the team

• 4+ years of relevant experience as described below
• Excellent grasp of Core Java, Multi Threading and OO design patterns 
• Experience with Scala, functional, reactive programming and Akka/Play is a plus
• Excellent understanding of data structures and algorithms
• Solid grasp of large scale distributed real time systems

• Prior experience on building a scalable and resilient micro service

• Solid understanding of relational databases, NoSQL databases and Caching systems
• Good understanding of Big Data technologies such as Spark, Hadoop is a plus
• Experience on one of AWS, Azure or GCP 

• You have excellent and effective communication and collaborative skills
• You love problem solving
• You stay up to date with the latest technologies and then apply them in real life
• You love paying attention to detail
• You thrive in meeting tight deadlines and prioritising workloads
• Ability to collaborate across multiple functions

Bachelor’s degree in Engineering or equivalent experience within the field