Senior Java Developer

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

Skills:

- Very Strong in WCF, WPF, MVVM, Restful WS, and XML

- Very good in Design/Architecture understanding

- Knowledge in DevExpress, Entity Framework, RDBMS and MS SQL Server would be a BIG 

PLUS. 

- Very Strong knowledge in OOPS and Design Patterns

- Working Knowledge in Design, Code reviews/quality, unit testing with NUnit/ XUnit and 

Continuous integration

- Analytical, a problem solver, with good communication skills.

- Ability to understand the requirements, analyze and articulate into design.

- Ability to find out and work with alternatives, check feasibility and propose solutions.

- Experience in Agile methodology and following best practices

- R&D mindset and thirst for exploring/learning new skills 

Qualifications 

Qualifications - BE/BTech/MCA

Experience: 6+ years 

Technical Overview:

● You will be expected to design, develop and maintain large-scale complex backend web applications.

● You will be expected to rapidly learn and apply relevant new technologies.

● You will be having a high level of interaction with business and product stakeholders.

● You will be working on the entire web application stack, which includes:

      o Web server hosting

      o RESTful communication

      o Message brokering

      o Backend application layer, which includes the service and domain layers

     o Data layer for persistence or caching

● You will be participating in an agile software development cycle, which includes:

     o Design

     o Development

     o Code Review

     o Unit and Integration Testing

     o Release

● As a Staff Engineer, you will be expected to contribute to design, code review, refactoring, and project management.

● You will be exposed to the following technologies:

     o Web application frameworks: Ruby on Rails, Node.js, Java Play, Vert.x, AIOHTTP, AWS Lambda

     o Languages: Ruby, Java, Kotlin, Javascript, Python

     o Data stores: PostgreSQL, Aerospike, Redis, Amazon Redshift

     o Communication: HTTP, Amazon SQS, Sidekiq, Amazon SNS

     o Server Management: Amazon ECS, Docker

Product Overview:

You will be contributing to products concerning both customers and partner drivers.

Product sectors include:

1) Growth: You’ll build tools to help boost user growth on the platform including our industry-best driver onboarding, training and certification system, referral system, and lead management models.

2) Lifecycle Management: Build tools to help users engage with the platform better, which include rewards and recognition modules, subscription services account management tools, partner and customer wallets and payout modules, and churn detection systems among others.

3) Transaction Experience: You’ll help deliver the most delightful booking experience to our customers and drivers. As part of this team, you’ll be responsible for our core booking system, pricing and payment

systems, location tracking and filtering services, fraud prevention systems, and in-app ticketing and support among others.

4) Fulfilment: As part of the fulfillment team, you’ll work on systems that ensure a high degree of ride fulfillment on the platform. Tools include allocation methodologies and systems, dynamic pricing, dynamic partner routing, and partner re-activation tools among others.

5) Enterprise Solutions: You’ll help Porter’s enterprise customers achieve delivery excellence. You’ll build tools for contract management, fleet management, fleet and route optimization tools, alerting and monitoring tools, and analytics suite among others.

Responsibilities:

• Responsible for design and development of high end, robust, scalable products that disrupt the market
• Technically-intense role with primary focus on building cool products in a niche domain 
• Evolution into Principal Software Engineers and Team leads and beyond based on one’s ability to demonstrate very strong technical expertise and project & people management skills.
• Reviewing code work for accuracy and functionality
• Analyzing code segments regularly.

Requirements:      

      Experience Range: 3+

      Role: Software Engineer – final role will depend on candidate’s experience and credentials

      Education: BE/B. Tech/MCA/M.Sc./MTech

      Technology Stack: Java, Hibernate, spring, spring boot, Microservices, MySQL, reactJS, Elastic Search, AWS Infra

Job Responsibilities:

• Developing and installing software solutions.
• Designing, implementing and delivering high quality Software project in JAVA, SQL / Oracle, J2EE and other JAVA technologies.
• Participate in detailed level in design, coding, code walk through, peer code reviews and unit testing, System Testing, UAT, Demos, POCs, installation, maintenance of Software modules.
• Software prototype.
• System Architecture.
• Software Design Document.
• User interfaces to be developed as per UX guidelines Code files ensuring coding guidelines followed.
• Code review artefacts during peer code review.
• Test plan and Test Cases.
• Installation / Deployment document Release Document.
• Technical Documentation.