
Java Developer – Backend (Spring Boot + WebFlux)
Company Overview
Dive into the galaxy of innovative possibilities and unfold the future with Pattem Digital. We are a leading software product development company specializing in delivering 100+ services across frontend, backend, CMS, and cutting-edge technologies. With a global presence and proven track record, we help businesses scale through agile and efficient software solutions.
Position Overview
We are looking for a skilled Java Backend Developer with strong expertise in Core Java, Spring Boot, and Spring WebFlux. The ideal candidate will be responsible for building scalable backend systems, developing reactive and RESTful APIs, and contributing to high-performance applications.
📍 Location: Whitefield, Bangalore (Onsite – 5 Days/Week)
📅 Experience: 5–6 Years
Key Responsibilities
● Develop and maintain backend services using Java, Spring Boot, and Spring WebFlux
● Design and implement RESTful and reactive APIs for scalable applications
● Work with databases (SQL/NoSQL – MongoDB preferred)
● Implement multithreading, concurrency, and reactive programming for performance optimization
● Collaborate with frontend teams, QA, and product managers
● Debug, troubleshoot, and resolve production issues
● Write clean, maintainable, and efficient code
● Participate in code reviews and maintain coding standards
● Ensure application performance, scalability, and security
Required Qualifications
Technical Skills
● Strong hands-on experience in Core Java (OOPs, Collections, Multithreading)
● Experience with Spring Boot, Spring MVC, and Spring WebFlux
● Good understanding of Microservices architecture
● Experience with MongoDB / SQL databases
● Knowledge of Java Streams, Exception Handling, Concurrency, and Reactive Programming
● Familiarity with Linux environment
● Experience with Git, Maven, CI/CD pipelines
● Understanding of API design, reactive systems, and system architecture
Experience & Education
● 5–6 years of experience in backend development
● Bachelor’s degree in Computer Science or related field
Soft Skills
● Strong problem-solving and analytical skills
● Good communication and teamwork abilities
● Ability to work in a fast-paced environment
● Ownership mindset and attention to detail
Preferred Qualifications
● Experience with Kafka or event-driven architecture
● Exposure to AWS or cloud platforms
● Experience working in Reactive systems / high-throughput applications
● Experience working in Agile environments

Similar jobs
Locations: Bangalore & Mumbai
⏳ Experience: 3–15 Years
⚡ Notice Period: Immediate Joiners or Max 10 Days
Mandatory Skills:
✅ Strong Core Java
✅ Excellent Problem-Solving Skills
✅ Data Structures & Algorithms
✅ AI / LLM Knowledge
✅ Strong Coding Skills
Important:
Candidates must be available for a Face-to-Face Interview in Bangalore or Mumbai.
Only Immediate Joiners or candidates serving up to 10 days' notice period will be considered.
Who we are looking for
A candidate who can design, build and configure applications to meet business process and application requirements.
Key Role Requirements:
- Experience in Java-J2EE Development
- Hands-on experience in Struts (Core Java, JSP, Servlets, EJB) framework.
- Hands-on experience in Oracle SQL, Procedures
- Hands-on experience in Spring boot, Spring batch
- Should have worked on application servers like IBM WAS / Jboss / Web logic.
- Knowledge of basic Linux commands and BIRT reporting tool is an added advantage.
- Knowledge in SVN or any other version control is an added advantage.
- Knowledge in Build tool like ANT, Maven is an added advantage
- Strong problem solving and analytical capabilities.
Responsibilities and Duties:
● Java/Java EE application development while providing expertise in the full software development
life cycle, from concept and design to testing.
● Contribute to all phases of the development life cycle
● Write well designed, testable, efficient code
● Ensure designs are in compliance with specifications
● Prepare and produce releases of software components
● Support continuous improvement by investigating alternatives and technologies and presenting
these for architectural review
Required Skills:
● Should have strong knowledge of Core Java and OOPS concepts
● Sound knowledge of Web application development fundamentals and have worked on Servlets,
JSP and any MVC framework
● Strong analytical and reasoning skills and ability to learn and unlearn new technology on back
end as well as on front end
● Ability to understand functional and requirement specifications and transform them to solution
● Understand the client’s problem domain and suggest and implement solution which brings value
to the business
● Can estimate, develop and deliver project from start to end
● Should have professional service experience with any product
● Experience working with onshore team and ability to communicate with clients and stakeholders
● Ready to travel onshore
● Sound knowledge of RDBMS
● Can communicate well with clients and collaborate with cross functional team to deliver high
quality deliverable
● Should have knowledge of Agile/Scrum methodology
● Ability to work on microservices
Why Work at Staunchsys:
● Family Health Cover & Accidental Insurance
● Constant Learning
● Competitive Pay
● Flexible work timings
● 5 days working
● Complimentary Lunch & Snacks
● Personal accident insurance policy
● Encashment facility for both PL & SL
About Company:
Fusion Softtech is one of the best offshore development companies based in Ahmedabad, India. We are a bunch of tech-savvy individuals who together as a teamwork to have great expertise in the latest technologies and developments so as to be able to cater the best of the services in the domain of Technology.
We, ensure being the hard core Technoids that our clients around the globe are given the best of our facilities through advancements in technologies which would actually help to make their lives a better place. What we do? We are specialized in creating user-friendly web-designs and applications with a primary goal to be simple and effective for use. We work hand-in-hand with your visions and goals to optimize your business/product. We provide you an end-to-end solution.
Job Description:
- Lead a team, handle client, conduct technical interview, and provide training to new joiners.
- Design, implement, and maintain web application phases.
- Conduct software analysis, programming, testing, and debugging
- Identifying production and non-production application issues
- Transforming requirements into stipulations.
- Should have knowledge of Data structures
- Develop, test, implement and maintain application software
- Recommend changes to improve established software application processes
- Ability to develop logical and high-quality code which meets functional specifications along with technical requirements for reusability, maintainability and scalability when appropriate application code for java programs.
- Ability to perform technical analysis based on requirements to establish architecture approach and create detailed design in support of the requirements.
- Excellent written and verbal communication skills, worked for foreign client would be an added advantage.
Technical Skills:
OOPS, Java, J2EE, Spring MVC, Spring Boot , Spring security and Spring Batch SOAP, REST API, Logging Framework, Hibernate, XML, JEE (Servlets/JSP/JMS), web services experience, microservices, AWS, Kubernetes, ELK Stack, Multithreading, GIT
Key Skills and Experience:
- Min 5+ years of experience in the JAVA/J2EE.
- Experience with RESTFUL Web services.
- Experience in portal & web content management
- Hands-on experience on Javascript frameworks Alloy UI and JQuery.
- Hands-on experience in software development using J2EE Frameworks Spring, Spring Boot, Struts, Hibernate.
- Basic knowledge of Javascript, HTML5, and CSS3.
- Good to have experience or Knowledge in AngularJS, ReactJS, different AWS services like S3, EC2, DynamoDB, Lambda function.
- Exposure in any of the Databases -MySQL/Postgres/Oracle/DB2 etc.
Perks and Benefits:
- Flexible working hours.
- 5 days working
- Fun loving environment with ample scope for flexibility.
- Exposure to work for foreign clients
- Employee friendly leave & Company Policies.
- Best working culture
• Excellent interpersonal/communication skills, both verbal and written •
• 7+ years of experience in Java/Node.js, REST/Graph QL, Redis on AWS Fargate • Design and develop high quality back-end code (Node.js/Go/JAVA) • Excellent in one or more Go, Java, Node.js skills • In-depth knowledge of Restful / GraphQL API, JSON.
• Experience with CI/CD and tools like Git, Bitbucket and Jenkins.
• Solid understanding of relational databases (e.g., Postgres, MySQL) and experience in NoSQL (e.g., Graph DB, MongoDB, DynamoDB).
• Developing new software applications, features, and distributed services that support a high-scale web application
• Experience working in a fast-paced environment; continuous deployment, test-driven development, agile methodologies
• Stay current with the latest back-end technologies and best practices and share your findings with the team
• Help evolve our backend stack and mentor our other developers when it comes to patterns and best practices
• Work as part of an agile team across a variety of application domains
• Write structured, tested, readable and maintainable code • Participate in code reviews to ensure code quality and distributed knowledge
• Ability to contribute to each step of the product development process (ideation, implementation, and release)
• Experience with performance tuning, profiling, and debugging applications
Job Description:
3+ years of experience as a JAVA/J2EE technologies developer in delivering highly available and scalable applications in a cloud operating environment. - Expertise in Spring framework and equivalent.
- Experience in developing Java Microservices using spring boot, docker, Kubernetes etc.
- Programming expertise in Java, JavaScript; and familiarity with other languages.
- Experience building, testing, and consuming REST APIs is a must have experience.
- Experience with high-throughput messaging technologies and patterns; Kafka and/or related technologies a plus.
- Exposure to databases of any types relational, analytical, columnar, etc; including MySql.
- Experience with Git source control and building/maintaining Continuous Integration and Delivery pipelines; Jenkins experience a plus.
- Expertise in Object-Oriented Development.
- Experience working in an Agile/Scrum-inspired delivery methodology. - Expertise with database programming, transaction management. Expertise with build tools – MAVEN, Gradle.
- Expertise in design patterns and data structures.
- Good understanding of Unit test tools.
- Good analytical skills to break down requirements and solve complex problems.
- Good understanding of Source control toolsets.
- Well-developed verbal and written communication skills.
- Proven track record to meet aggressive timelines.
Required Skills:
Good to have
- Understanding CI tools like Jenkins, Bamboo.
- Experience with Google Cloud Platform or equivalent.
- Experience with Microservices and/or Monolith to Microservice migration.
- Experience with frontend technologies like to react, angular is a plus
- Good Linux experience
- java 8+
- springcore
- springboot
- MongoDB
- Angular
- Agile
TamilNadu candidates can apply
Experince:4 to 8 years.
Swift is building a next generation checkout stack for India - a platform rolling up payments and logistics solution for all fulfillment needs. We give businesses the opportunity to provide a customer experience at par with the likes of Amazon and Flipkart, all the while saving money and time.
Its basically Amazon without the website listing - we let our sellers design their own sales channel :-)
We believe there are many things a seller or small business has to worry about when selling online, logistics/payments/etc shouldn't be one of them. With our solution, SMBs and D2C brands get access to technologies and services like next day delivery, same day delivery, live package tracking, Card/Cash on delivery, scheduled delivery etc, making parcel delivery just as simple as collecting payment.
We also provide robust APIs which makes it easy for developers to add shipping capabilities to their multichannel online store.
We want to be the #1 checkout platform that’s reliable, easy to use and affordable.
About you:
You have experience in Java/Scala/JVM based languages and have an understanding of server design and implementation. You are looking for challenges in growing a product from hundreds to millions of visitors per month making thousands of transactions a day.
You like working with streaming/reactive architectures and have experience/interest in setting up MongoDB based cloud infra from scratch. You generally prefer to use a minimal set of simple tools to a diverse range of complex ones.
We are looking to build a back-end cloud infrastructure (on Java/Scala with Google Cloud Platform preferably) which will be a fault-tolerant real-time stream processing system on the cloud - Our system will need to meet liveliness guarantees from a web/API application perspective (and not a big data/ETL perspective).
You like to work on a variety of projects - at this job, you’ll be developing a complex backend API infra, a reactive streaming architecture and a cloud-native, highly available API for our customers.
You have:
Experienced in any JVM based language.
Have some experience in NoSQL and architecting APIs
Strong verbal and written communication skills and the ability to work well cross-functionally.
We offer:
You to be a part of a small, but a super capable team.
The opportunity to work closely with founders to define, scope, estimate and plan various aspects of the product. Being one of the first hires at Swift, you will be involved in both high and low-level decision making. This means a lot of ownership, which we cultivate by having a flat structure.
Competitive salary and stock options from a high-growth company.
Required Knowledge and technical skills:
- Expert level experience designing and building web services using Java
- Hands on experience in frameworks like struts , springs, hibernate
- Experience with multiple database platforms
- Experience with high volume, mission critical applications
- Experience building distributed systems at Internet scale
- Knowledge of commonly used design patterns
- Prior experience building internet platforms from the ground up
- Understanding Microservices patterns and architectures, enterprise design and industry best practices.
Required Qualities/ personal skills:
- Strong written and verbal communication skills
- Strong interpersonal skills and time management skills
- Strong analytical and troubleshooting skills
- Experience working in an Agile environment
- Experience working in a fast-paced delivery environment







