Java Backend Developer

Job Title: Senior Java Developer – Multi-SaaS / Microservices / Pub-Sub

About the Role

We are seeking a highly skilled Senior Java Developer with strong leadership abilities to join our team. The ideal candidate will have deep expertise in Java, micro services architecture, multi-tenant SaaS systems, pub/sub messaging, and cloud-based deployments on AWS EKS. This role requires not only technical mastery but also the ability to mentor teams, influence architecture decisions, and ensure best practices through Test-Driven Development (TDD).

Key Responsibilities

• Lead design and development of Java-based multi-tenant SaaS applications using microservices architecture.
• Implement pub/sub messaging systems for event-driven communication.
• Deploy, monitor, and optimize services on AWS EKS.
• Ensure system reliability, scalability, and security using AWS CloudWatch and other observability tools.
• Apply TDD principles to drive high-quality, maintainable code.
• Collaborate with product managers, architects, and other developers to translate requirements into technical solutions.
• Lead code reviews, mentor junior engineers, and promote engineering best practices.
• Take ownership of end-to-end delivery, from architecture design to production rollout.

Required Skills & Qualifications

• Proficiency in Java with 6+ years of professional development experience.
• Strong background in microservices architecture and multi-tenant SaaS systems.
• Expertise in pub/sub messaging patterns (e.g., Kafka, RabbitMQ, or AWS SNS/SQS).
• Hands-on experience with AWS EKS and container orchestration (Kubernetes).
• Strong understanding of monitoring and logging using AWS CloudWatch or similar tools.
• Proven experience applying Test-Driven Development (TDD) in real-world projects.
• Demonstrated leadership skills – mentoring, decision-making, and driving engineering excellence.
• Solid understanding of software engineering best practices, CI/CD, and version control (Git).

Responsibilities of a Senior Software Engineer (Backend):

• You will be a guide in the entire application lifecycle including research, design, development, testing (dev owns quality), along with continuous deployment and delivery
• Lead design with a major focus on best user experience, performance, scalability and future expansion
• You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills to bring in continuous improvements and implement best practices.
• You will apply the latest technology thinking from our tech radar, adopt best design practices to solve complex problems and ensure our product is the best in usability.
• You will work directly with the CEO and the cross functional product teams, align on the needs of the products and operations.
• You will analyze business, technology challenges and suggest solutions
• Build an “Awesome” team

This opportunity is for you if,

• You have 4-6 Years of work experience in building highly-interactive applications using Java, Spring MVC, Spring JMS, Spring JDBC, Spring IOC, Spring Boot, MySQL, MiBatis, ReactJS, Java Script, jQuery, AWS, JMS and have knowledge on wide range of web technologies, tools and Frameworks.
• You have experience in working with Restful webservices
• You have strong knowledge and understanding of design patterns and domain driven design
• You understand fundamental design principles behind building scalable, resilient, and maintainable applications 
• You have functional knowledge of inclusive design: accessibility, and related tooling
• You have consumer web development experience for high-traffic, public facing web applications
• You have knack for writing clean, readable, re-usable code
• You have good knowledge on TDD and CI/CD practices.
• You have experience in managing and publishing releases using Git branching and tools like NPM and YARN.
• You have penchant for learning
• You are a great analytical & logical thinker and someone who loves solving problems
• You are passionate, energetic, enthusiastic and a go-getter
• You are “ FUN @ Work “

Job Description

We are looking for a hands-on Tech Lead – Java with strong software engineering fundamentals, a deep understanding of Java-based backend systems, and proven experience leading agile teams. This role involves a balance of individual contribution and technical leadership — mentoring developers, designing scalable architectures, and driving the success of product delivery in fast-paced environments.

Key Responsibilities

• Lead the end-to-end design, development, and deployment of Java-based applications and RESTful APIs.
• Collaborate with product managers and architects to define technical solutions and translate business requirements into scalable software.
• Guide and mentor team members in best coding practices, design patterns, and architectural decisions.
• Drive code reviews, technical discussions, and ensure high code quality and performance standards.
• Troubleshoot critical production issues and implement long-term fixes and improvements.
• Advocate for continuous improvement in tools, processes, and systems across the engineering team.
• Stay up to date with modern technologies and recommend their adoption where appropriate.

Required Skills

• 5+ years of experience in Java backend development with expertise in Spring/Spring Boot and RESTful services.
• Solid grasp of Object-Oriented Programming (OOP), system design, and design patterns.
• Proven experience leading a team of engineers or taking ownership of modules/projects.
• Experience with AWS Cloud services (EC2, Lambda, S3, etc.) is a strong advantage.
• Familiarity with Agile/Scrum methodologies and working in cross-functional teams.
• Excellent problem-solving, debugging, and analytical skills.
• Strong communication and leadership skills.

About HummingWave

HummingWave is a leading IT product development company specializing in building full-scale application systems with robust cloud backends, sleek mobile/web frontends, and seamless enterprise integrations. With 50+ digital products delivered across domains for clients in the US, Europe, and Asia-Pacific, we are a team of highly skilled engineers committed to technical excellence and innovation.

Thanks

Responsibilities:

• Participation in the requirements analysis, design, development and testing of applications.
• The candidate is expected to write code himself/herself.
• The candidate is expected to write high level code, code review, unit testing and deployment.
• Practical application of design principles with a focus on the user experience, usability, template designs, cross browser issues and client server concepts.
• Contributes to the development of project estimates, scheduling, and deliverables.
• Works closely with QA team to determine testing requirements to ensure full coverage and best quality of product.
• There is also the opportunity to mentor and guide junior team members in excelling their jobs.

Requirements:

• BE/B. Tech. Computer Science or MCA from a reputed University.
• 3.5 - 6.5 Years of experience in software development, with emphasis on JAVA/J2EE Server side programming.
• Hands on experience in Core Java, Multithreading, RMI, Socket programing, JDBC, NIO, webservices and Design patterns.
• Should have Knowledge of distributed system, distributed caching, messaging frameworks ESB etc.
• Knowledge of Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database is essential.
• Additionally, knowledge of HBase, Hadoop and Hive are desirable.
• Familiarity with message queue systems and AMQP and Kafka is desirable.
• Should have experience as a participant in Agile methodologies.
• Should have excellent written and verbal communication skills and presentation skills.

Job description for Backend Developer:

Responsibilities
• Hands-on experience in Springboot and good knowledge of MySQL, MongoDB
• Hands-on experience in building RESTful based APIs
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Integration of user-facing elements developed by front-end developers with server-side logic
• Building reusable code and libraries for future use
• Optimization of the application for maximum speed and scalability•
• Implementation of security and data protection

Skills And Qualifications
• Basic understanding of front-end technologies and platforms, such as JavaScript, HTML5, and CSS3
• Understanding accessibility and security compliance (Depending on a specific project)
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Management of hosting environment, including database administration and scaling an application to support load changes
• Data migration, transformation, and scripting
• Outputting data in different formats
• Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient knowledge of a back-end programming language (Java 8 and above and Spring Boot)
• Proficient understanding of code versioning tools, such as Git
• Proficient understanding of OWASP security principles
• Understanding of “session management” in a distributed server environment

Required qualification:

*)  Any degree from a reputed university

*) Proven software development experience and Java/J2EE skills development. 

Cloudera Data Warehouse Hive team looking for a passionate senior developer to join our growing engineering team. This group is targeting the biggest enterprises wanting to utilize Cloudera’s services in a private and public cloud environment. Our product is built on open source technologies like Hive, Impala, Hadoop, Kudu, Spark and so many more providing unlimited learning opportunities. 

A Day in the Life

Over the past 10+ years, Cloudera has experienced tremendous growth making us the leading contributor to Big Data platforms and ecosystems and a leading provider for enterprise solutions based on Apache Hadoop. You will work with some of the best engineers in the industry who are tackling challenges that will continue to shape the Big Data revolution.  We foster an engaging, supportive, and productive work environment where you can do your best work. The team culture values engineering excellence, technical depth, grassroots innovation, teamwork, and collaboration.

You will manage product development for our CDP components, develop engineering tools and scalable services to enable efficient development, testing, and release operations.  You will be immersed in many exciting, cutting-edge technologies and projects, including collaboration with developers, testers, product, field engineers, and our external partners, both software and hardware vendors.

Opportunity:

Cloudera is a leader in the fast-growing big data platforms market. This is a rare chance to make a name for yourself in the industry and in the Open Source world. The candidate will responsible for Apache Hive and CDW projects. We are looking for a candidate who would like to work on these projects upstream and downstream. If you are curious about the project and code quality you can check the project and the code at the following link. You can start the development before you join. This is one of the beauties of the OSS world. 

https://hive.apache.org/" target="_blank">Apache Hive

Responsibilities:

• Build robust and scalable data infrastructure software

• Design and create services and system architecture for your projects 

• Improve code quality through writing unit tests, automation, and code reviews

• The candidate would write Java code and/or build several services in the Cloudera Data Warehouse. 

• Worked with a team of engineers who reviewed each other's code/designs and held each other to an extremely high bar for the quality of code/designs

• The candidate has to understand the basics of Kubernetes.

• Build out the production and test infrastructure. 

• Develop automation frameworks to reproduce issues and prevent regressions.

• Work closely with other developers providing services to our system.

• Help to analyze and to understand how customers use the product and improve it where necessary.  

Qualifications:

• Deep familiarity with Java programming language.

• Hands-on experience with distributed systems. 

• Knowledge of database concepts, RDBMS internals.

• Knowledge of the Hadoop stack, containers, or Kubernetes is a strong plus.  

• Has experience working in a distributed team. 

• Has 3+ years of experience in software development.

Position - Software Development Engineer

Responsibilities

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of API integrations
• Optimize application for maximum speed and scalability
• Collaborate with other team members and stakeholders

Requirements

• Proficient understanding of Java 8 or plus, Spring Frameworks, Spring Boot & Microservices
• Strong problem solving skills and good with product understanding
• Good understanding of server-side programming and integration with UI components.
• Good understanding of MySQL and any one NoSQL
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Proficient understanding of code repositories like git
• 2- 5 years of experience

Personal Characteristics

• Passion and commitment
• Coding enthusiastic
• High integrity
• Self-starter

Key Skills

• Java
• Spring
• Spring Boot
• J2EE

• 4+ years of professional development experience in an agile software engineering role
• Strong development skills in Java or Groovy
• Experience with Jenkins, bamboo and CI/CD environments
• Familiarity with Guice or similar dependency injection frameworks
• Familiarity with relational database technology
• Familiarity with document store database technology such as ElasticSearch or Cassandra
• Experience with design and testing of RESTful APIs
• Familiarity with cross platform development on Linux, OSX and Windows
• Strong understanding of Git version control system
• Knowledge of JavaScript (Node.js)
• Familiarity with Amazon Web Services (AWS)
• Familiarity with Docker / Kubernetes
• Experience with continuous integration and build systems such as Jenkins or Bamboo
• Experience with Jira or other project management, issue-tracking or bug-tracking tools
• Should have knowledge of RDBMS
• Familiarity with Node.js, Kotlin, Kafka, DynamoDB
• Previous experience with SaaS or cloud development, Micro-services

· 3+ years java development experience with JSE/JEE, Java based Micro-services framework and implementation, Spring framework, Hibernate framework, SQL etc

· Hands on experience on Spring boot & Microservices .

· Strong knowledge of micro-service logging, monitoring, debugging and testing

· Implementations experience of micro-service integration, packaging, build automation and deployment.

· Object Oriented analysis and design using common design patterns.

Key Skills:

1. One or more of Python/PHP/Ruby/NodeJS/Java

2. Sound object-oriented skills, including strong design patterns knowledge

2. REST APIs

3. MVC architecture

4. MySQL/PostgreSQL

5. Exp with at least 1 NoSQL databases MongoDB/Memcache/Redis/

6. Exp with search technologies Elasticsearch/Solr

7. Exp building messaging based asynchrounous systems RabbitMQ/Kafka/SQS/Celery will be added advantage

8. Exp with Django/Flask frameworks will be added advantage

9. Knowledge of software best practices like Test-Driven Development (TDD) and Continuous Integration (CI) will be added adnavtage

Requirements:

1. Developing software solutions in conjunction with Relational theory, Rest APIs and NoSQL database technologies

2. Knowledge of cloud based technologies in AWS or Azure will be added advantage

3. Understanding of RDBMS technologies like MySQL, PostgreSQL.

4. Hands-on with Version control systems (GIT, SVN) and Unix/Ubuntu.

5. Experience in requirement analysis, HLD, LLD, unit & integration testing.

6. Good hands on experience in debugging application issues

TL;DR

1) Top performer in the company

2) Has worked with product based startup company

3) Ambitious and hardworking