
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

About Pattem Digital
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Minimum requirements
5+ years of industry software engineering experience (does not include internships nor includes co-ops)
Strong coding skills in any programming language (we understand new languages can be learned on the job so our interview process is language agnostic)
Strong collaboration skills, can work across workstreams within your team and contribute to your peers’ success
Have the ability to thrive on a high level of autonomy, responsibility, and think of yourself as entrepreneurial
Interest in working as a generalist across varying technologies and stacks to solve problems and delight both internal and external users
Preferred Qualifications
Experience with large-scale financial tracking systems
Good understanding and practical knowledge in cloud based services (e.g. gRPC, GraphQL, Docker/Kubernetes, cloud services such as AWS, etc.)
Job Title: Backend Developer (Kotlin/Java)
Experience: 5-7 Years
Location: Remote (Candidates from Pune/Mumbai preferred for training-related travel)
Salary: ₹15-25 LPA CTC (1L up to 1.5L In hand Per Month)
Job Description:
We are seeking a highly skilled Backend Developer with expertise in Kotlin/Java (not Android) to join our dynamic team. The ideal candidate will have experience building scalable backend solutions, working with relational databases, and utilizing modern frameworks like Spring and Webflux.
This is a remote role, but candidates based in Pune/Mumbai who can travel for training purposes will be preferred.
- Must-Have Skills:Kotlin/Java backend development (5+ years)
- Spring Boot/Webflux (Reactor) (1+ year)
- Relational Databases (PostgreSQL preferred) (2+ years)
- Strong problem-solving skills and attention to detail
- Excellent communication skills and professionalism
- Key Responsibilities:Develop and maintain backend services using Kotlin/Java.
- Design and implement scalable microservices with Spring Boot/Webflux (Reactor).
- Work with relational databases (PostgreSQL preferred) and ensure optimal data handling.
- Optimize backend performance and ensure system reliability.
- Collaborate with frontend, DevOps, and product teams to deliver high-quality software solutions.
- Ensure best practices in coding, security, and system design.
- Nice to Have:Experience with NoSQL databases (Cassandra/MongoDB)
- Knowledge of Kafka for event-driven architecture
- Familiarity with AWS, Docker for cloud-based deployments
- Exposure to full-stack development with React
- Understanding of ClickHouse for analytics
Company:
The client is a technology company specializing in custom software development, mobile app creation, cloud services, data analytics, applied AI, cybersecurity, web design, and UX/UI design. They emphasize building robust, scalable, and world-class software products and applications. Their expertise spans various technology stacks, including MERN, MEAN, applied AI, Oracle, AWS, GCP, Microsoft Azure, and PAAS. They have developed products such as Digirestro, Task Manager, and Attendance Management. The company operates from multiple locations, including Pune and Nagpur in India, and Kendall Park, New Jersey, USA.
- Why Join Us?Competitive salary (₹15-25 LPA)
- Remote work flexibility (with occasional travel to Pune/Mumbai for training)
- Opportunity to work on modern tech stacks
- Collaborative and professional work environment
AvatarSoft is a team of seasoned "Temenos T24 Certified" IT Professionals with over 20 years' combined experience in Financial Transformation. We are a growing company across 3 continents and 4 countries deployed in an offshore and onsite model. Our professionals have worked in major Software firms, Consultancy firms, Financial Institutions, and Credit Unions across the globe.
Avatarsoft is a rapidly evolving banking software consulting firm that renders leading edge to its clients . Avatarsoft brings profound expertise, resolute culture and provides strategical T24 / Transact transformation solutions through cutting edge services. We embrace our journey, by striving to remain the trusted and ethical business partner that delivers IT consulting to implement Temenos T24 Transact / Infinity, banking transformation projects and provides business value to our clients and etc,.
Our Locations: Canada, U.S.A, Netherlands, Mexico, India(Chennai), UAE.
This is for our Chennai Office , however work from home can be considered during pandemic or lockdowns .
- Java / JavaScript Developer Job Description (Minimum 2 years Experience in Java)
- Good in Core Java, Multithreading, J2EE, web services (REST, SOAP).
- In-depth knowledge on Java Script and object-oriented technique .
- Should be able to work independently
- Familiar on Front-end technologies like AngularJS or Node JS or Spring boot is a real Plus
Please find below updated JD for Java requirement.
-Work with a performance-oriented team driven by ownership and open to experiment.
- -6+ years of Java advanced software development experience, with concurrent (multi-threaded) programming highly desirable.
- -Strong experience on Core Java 8, Java EE, Spring Boot, Maven and Docker including Multi-threading.
. -Strong problem solving skills, computer science fundamentals, data structures and algorithms.
- -Hands on experience with any SQL Database.
- -Ability to learn new technologies like ELK, stack, redis etc.
- -Must have expert level knowledge in Java, Springboot.
- -Must have knowledge or hands on experience in microservices, apache kafka and distributed caching.
. -Experience in distributed/scalable systems
- -Strong knowledge of design patterns and software engineering best practices.
- -Familiarity with standard development tools and processes: Git, Eclipse, JUnit test, debugging, profiling, etc.
. -Familiarity with CI/CD and DevOps
. -Strong knowledge and previous experience in end-to-end design, development and subsequent
support of large-scale data processing systems
. - Familiarity and confidence working in an agile development environment.
. - Good Problem solving skills
- - Good oral and written communication skills.
- - Strong debugging skills.
We are looking for a Java developer responsible for building Java applications. This includes anything between complex groups of back-end services and their client-end counterparts. Primary responsibility will be to design and develop these types of applications and to coordinate with the rest of the team working on different layers of the infrastructure.
Responsibilities:
Contribute to all stages of the software development lifecycle
Design, build and maintain efficient, reusable, and reliable Java code
Design, implement and maintain applications that can be high-volume and low-latency
Identify bottlenecks and bugs, and devise solutions to these problems
Help maintain code quality, organization, and automatization
Skills:
Minimum 3+ years of experience in Java
Proficient in Java and Springboot
Solid understanding of object-oriented programming
Familiar with various design and architectural patterns
Skill for writing reusable Java libraries
Familiarity with concepts of MVC, and RESTful
Proficient understanding of code versioning tools, such as Git
Familiarity with build tools such as Maven, and Gradle
Excellent knowledge of Relational Databases, SQL, and ORM technologies (Hibernate)
Excellent written and verbal communication.
skills needed:
java
springboot
microservices
kafka/rabbitmq
jpa

Detailed Job Description :
Total Exp-6-9 Yrs
Location-Noida(Singapore Travel - In next 3 Months (short term)
Mandatory:
- 6-8 years of total IT experience delivering enterprise-scale applications or product implementations
- 1-3 years of experience working as a technical lead.
- Working Experience in ISO20022, SWIFT, Remittance
- Language & Frameworks: Java, Spring Boot, Spring, Any ORM
Preferred:
- Working experience in TCS Bancs or Integration with TCS Bancs
- Database: SQL Server
- Working experience in managing projects in Java Stack.
- Good Knowledge of Microsoft stack, Static Code analyzers, Overall SDLC Lifecycle, Design & Architecture
Company Name & Profile :
It is a leader in the integration of IT and network technologies and brings more than 100 years of expertise in technological innovation to provide solutions for empowering people, businesses and society. Headquartered in Japan, it started operations in India in the 1950s, accelerating its growth through the expansion of business to global markets. The company in India expanded its business from telecommunications to public safety, logistics, transportation, retail, finance, unified communication and IT platforms, serving across governments, businesses as well as individuals. With its Centre of Excellence for analytics platform solutions, big data, biometrics, mobile and retail, the company in India offers innovative new services and solutions for India and global markets. It operates across India with offices in New Delhi (head office), Noida, Mumbai, Chennai, and Bengaluru.
Urgent requirement for Java developer for a product-based company.
Apply only if you have experience in data structure and algorithms
Please note the notice period. we are looking for an immediate to 15 days joiner only.
Experience: 3+ years
Location: Bangalore
Notice Period: Immediate to 15 days
Working: currently WFH
Skills: Core java developer, Hibernate, Spring, Data structure, Spring boot/Micro service
About the Role
The Dremio India team owns the DataLake Engine along with Cloud Infrastructure and services that power it. With focus on next generation data analytics supporting modern table formats like Iceberg, Deltalake, and open source initiatives such as Apache Arrow, Project Nessie and hybrid-cloud infrastructure, this team provides various opportunities to learn, deliver, and grow in career. We are looking for technical leaders with passion and experience in architecting and delivering high-quality distributed systems at massive scale.
Responsibilities & ownership
- Lead end-to-end delivery and customer success of next-generation features related to scalability, reliability, robustness, usability, security, and performance of the product
- Lead and mentor others about concurrency, parallelization to deliver scalability, performance and resource optimization in a multithreaded and distributed environment
- Propose and promote strategic company-wide tech investments taking care of business goals, customer requirements, and industry standards
- Lead the team to solve complex, unknown and ambiguous problems, and customer issues cutting across team and module boundaries with technical expertise, and influence others
- Review and influence designs of other team members
- Design and deliver architectures that run optimally on public clouds like GCP, AWS, and Azure
- Partner with other leaders to nurture innovation and engineering excellence in the team
- Drive priorities with others to facilitate timely accomplishments of business objectives
- Perform RCA of customer issues and drive investments to avoid similar issues in future
- Collaborate with Product Management, Support, and field teams to ensure that customers are successful with Dremio
- Proactively suggest learning opportunities about new technology and skills, and be a role model for constant learning and growth
Requirements
- B.S./M.S/Equivalent in Computer Science or a related technical field or equivalent experience
- Fluency in Java/C++ with 15+ years of experience developing production-level software
- Strong foundation in data structures, algorithms, multi-threaded and asynchronous programming models and their use in developing distributed and scalable systems
- 8+ years experience in developing complex and scalable distributed systems and delivering, deploying, and managing microservices successfully
- Subject Matter Expert in one or more of query processing or optimization, distributed systems, concurrency, micro service based architectures, data replication, networking, storage systems
- Experience in taking company-wide initiatives, convincing stakeholders, and delivering them
- Expert in solving complex, unknown and ambiguous problems spanning across teams and taking initiative in planning and delivering them with high quality
- Ability to anticipate and propose plan/design changes based on changing requirements
- Passion for quality, zero downtime upgrades, availability, resiliency, and uptime of the platform
- Passion for learning and delivering using latest technologies
- Hands-on experience of working projects on AWS, Azure, and GCP
- Experience with containers and Kubernetes for orchestration and container management in private and public clouds (AWS, Azure, and GCP)
- Understanding of distributed file systems such as S3, ADLS or HDFS
- Excellent communication skills and affinity for collaboration and teamwork







