2+ years of experience developing web applications using J2EE.
2+ years of experience in Spring Boot.
Good knowledge of MicroServices.
Expertise developing enterprise-level web applications and RESTful APIs using MicroServices, with demonstrable production-scale experience.
Working experience in Industry Standard protocols related API Security including OAuth is a must.
Demonstrate strong design and programming skills using JSON, Web Services, XML, XSLT, PL/SQL in Unix and Windows environments.
Strong Shell scripting experience
Passion to stay on top of the latest happenings in the tech world and an attitude to discuss and bring those into play.
Strong collaboration and communication skills within distributed project teams
Excellent written and verbal communication skills

About GrayOpus Technology
About
Connect with the team
Company social profiles
Similar jobs
Job Title: IAC SRE Engineer
Location: Pune, Mumbai, Bangalore
Experience Required: 4 Years
Role Overview:
We are looking for experienced IAC Engineers with a strong background in Akamai, Data Structures & Algorithms (DSA), Java, and DevSecOps. The ideal candidate should have hands-on development experience, be proficient in writing Infrastructure as Code using Terraform, and demonstrate strong problem-solving skills.
Core Skills:
- Akamai – Strong experience in CDN, caching, and performance optimization.
- Data Structures & Algorithms (DSA) – Strong problem-solving and coding abilities.
- Java – Solid programming background and experience in development.
- DevSecOps – Understanding of integrating security in CI/CD pipelines and infrastructure.
Good to Have:
- WAF (Web Application Firewall) – Knowledge of WAF is a plus, though not mandatory.
Additional Skills:
- Experience with SRE (Site Reliability Engineering) practices is beneficial.
- Strong hands-on with Terraform for managing cloud infrastructure.
Location: Hyderabad
Work Mode: Hybrid (2 days WFO)
Experience Required: 4.5+ years
Notice Period: Immediate Joiners Preferred
Employment Type: Full-Time
Mandatory Requirements:
- 4.5+ years of experience in Java Development
- Hands-on experience with AWS in a production environment
- Must be available to join immediately
- Must be willing to work in Hybrid mode from Hyderabad
Technical Skill Requirements:
- Strong hands-on experience in Core Java, Spring Boot, and Microservices
- Solid understanding of OOP concepts, Multithreading, and REST APIs
- Practical knowledge and experience working with AWS services like EC2, Lambda, S3, RDS, SNS, etc.
- Familiarity with CI/CD tools and version control systems (Git)
- Good knowledge of SQL and NoSQL databases
- Ability to write clean, efficient, and well-documented code
Key Responsibilities:
- Design, develop, and maintain scalable Java-based backend applications
- Implement and integrate AWS services to ensure scalability and reliability
- Collaborate with cross-functional teams including QA, DevOps, and Front-end developers
- Optimize application performance and troubleshoot issues in a timely manner
- Participate in code reviews, sprint planning, and team discussions
- Ensure best practices in code quality, security, and documentation
- Handle deployments and production support if needed
Title: Senior Java Developer
Top Skills: Java , Spring boot, Microservices, MYSQL, PL/SQL, NoSQL
Work Mode:- Full time
Location:- Teynampet, Chennai, Tamil Nadu
Employer: Innovating digital experiences with cutting-edge technology, design, and user-focused solutions for global brands
We are seeking a highly skilled and experienced Sr. Java Developer with a proven track record in
delivering high-quality applications. If you're passionate about building modern, scalable, and
robust software solutions, we want to hear from you!
Required Qualifications
7+ years of software development experience with a focus on delivering robust and
efficient solutions.
Strong proficiency in Java and its latest versions and expertise in developing
Java-based applications.
Hands-on experience with relational databases and proficiency in writing complex SQL
queries.
Familiarity with Enterprise Java (J2EE / Java EE / Spring) application architectures.
Demonstrated history of delivering modern, high-cadence applications using:
Agile methodologies and test-driven development (TDD).
CI/CD pipelines for streamlined deployment and updates.
Git version control for collaborative development.
Job Description
Java Developer Transformational Product Experiences .
Preferred Skills
Knowledge of microservices architectures and Domain-Driven Design (DDD).
Working knowledge of Python and JavaScript/Node.js.
Experience with Object-Relational Mappers (ORMs) such as Hibernate or JPA.
Strong Problem Solving skills
Bonus Skills
Exposure to emerging Generative AI technologies and tools like OpenAI APIs and GPT
large language models (LLMs).
Practical experience with MongoDB or other NoSQL, MySQL databases.
Job Location: Pune
Experience: 4- 5 years
Functional Area - IT Software - Application Programming , Maintenance
Role Category : Programming & Design
Requirement / Job Description:
Core Skills:
Strong experience of Core Java (1.7 or higher), OOPS concepts and Spring framework (Core, AOP, Batch, JMS)
Demonstrated design using Web Services (SOAP and REST)
Demonstrated Microservices APIs design experience using Spring, Springboot
Demonstrable experience in Databases like MySQL, PostgreSQL, Oracle PL/SQL development etc
Strong coding skills, good analytical and problem-solving skills
Excellent understanding of Authentication, Identity Management, REST APIs, security and best practices
Good understanding of web servers like Tomcat Apache, nginx or Vertex/ Grizzly, JBoss etc
Experience in OAuth principles
Strong understanding of various Design patterns
Other Skills:
Familiarity with Java Cryptography Architecture (JCA)
Understanding of API Gateways like Zuul, Eureka Server etc..
Familiarity with Apache Kafka, MQTT etc.
Responsibilities:
Design, develop, test and debug software modules for an enterprise security product
Find areas of optimization and produce high quality code
Collaborate with product managers and other members of the project team in requirements specification and detailed engineering analysis.
Collaborate with various stake holders and help bring proactive closure on the issues
Evaluate various technology trends and bring in the best practices
Innovate and come out of the box solutions
Adapt, thrive and deliver in a highly evolving and demanding product development team
Come up with ways to provide an improved customer experience
Exp - 4-6 years
Immediate joiners preferred
Location - Bangalore
Java + Spring boot
Microservice
MYSQL
Design principal
-Clear Communication: Practice clear and concise communication to effectively convey technical concepts.
- In-Depth Knowledge: Be prepared to provide detailed insights into experiences with specific technologies and tools, showcasing expertise.
- Specific Examples: Share real-world examples or projects where they have applied the mentioned technologies to demonstrate practical knowledge.
- Problem-Solving Skills: Be ready to discuss how they have solved real-world technical challenges in previous roles.
- Continuous Learning: Emphasize a commitment to continuous learning and staying updated with industry trends, especially in rapidly evolving fields like cloud technologies.
Software Development Engineer (III) @ REBEL FOODS
We are surrounded by the world's leading consumer companies led by technology - Amazon for retail, Airbnb for hospitality, Uber for mobility, Netflix and Spotify for entertainment, etc. Food & Beverage is the only consumer sector where large players are still traditional restaurant companies. At Rebel Foods, we are challenging this status quo as we are building the world's most valuable restaurant company on the internet, superfast. The opportunity for us is immense due to the exponential growth in the food delivery business worldwide which has helped us build 'The World's Largest Internet Restaurant Company' in the last few years. Rebel Foods current presence in 7 countries (India, Indonesia, UAE, UK, Malaysia, Singapore, Bangladesh) with 15 + brands and 3500+ internet restaurants has been built on a simple system - The Rebel Operating Model. While for us it is still Day 1, we know we are in the middle of a revolution towards creating never seen before customer-first experiences. We bring you a once-in-a-lifetime opportunity to disrupt the 500-year-old industry with technology at its core.
We urge you to refer to the below to understand how we are changing the restaurant industry before applying at Rebel Foods.
https://jaydeep-barman.medium.com/why-is-rebel-foods-hiring-super-talented-engineers-b88586223ebe">Link
https://jaydeep-barman.medium.com/how-to-build-1000-restaurants-in-24-months-the-rebel-method-cb5b0cea4dc8">Link 1
https://medium.com/faasos-story/winning-the-last-frontier-for-consumer-internet-5f2a659c43db">Link 2
https://medium.com/faasos-story/a-unique-take-on-food-tech-dcef8c51ba41">Link 3
An opportunity to revolutionize the restaurant industry
Here, at Rebel Foods, we are using technology and automation to disrupt the traditional food industry. We are focused on building an operating system for Cloud Kitchens - using the most innovative technologies - to provide the best food experiences for our customers.
You will enjoy working with us, if:
- You are passionate about using technology to solve customer problems
- You are a software craftsman or craftswoman who is obsessed with high quality software
- You have a flair for good design and architecture
- You are unafraid of rearchitecting or refactoring code to improve it
- You are willing to dive deep to solve complex software issues
- You are a teacher and mentor
Our technology ecosystem:
- Languages: Java, Typescript, Javascript, Ruby
- Frameworks: Spring Boot, NodeJS, ExpressJS
- Databases: AWS Aurora, MySQL, MongoDB
- Cloud: AWS
- Microservices, Service Oriented Architecture: REST APIs, Caching, Messaging, Logging, Monitoring and Alerting
- CI/CD and DevOps
- Bitbucket, Jira
You will mostly spend time on the following:
- Leading the design and implementation of software systems
- Driving engineering initiatives across teams with a focus on quality, maintainability, availability, scalability, security, performance and stability
- Writing efficient, maintainable, scalable, high quality code
- Reviewing code and tests
- Refactoring and improving code
- Teaching and mentoring team members
We’re excited about you if you have:
- At least 4+ years of experience in software development, including experience building microservices and distributed systems
- Excellent programming skills in one or more languages: Java, C#, C++, Typescript, Javascript, Python or Ruby
- Experience working in Cloud environments: AWS, Azure, GCP
- Experience building secure, configurable, observable services
- Excellent troubleshooting and problem-solving skills
- The ability to work in an Agile environment
- The ability to collaborate effectively within and across engineering, product and business teams
We value engineers who are:
- Crazy about customer experience
- Willing to challenge the status quo and innovate
- Obsessed with quality, performance and frugality
- Willing to take complete responsibility and ownership of results
- Team players, teachers, mentors
The Rebel Culture
We believe in empowering and growing people to perform the best at their job functions. We follow outcome-oriented, fail-fast iterative & collaborative culture to move fast in building tech solutions. Rebel is not a usual workplace. The following slides will give you a sense of our culture, how Rebel conducts itself and who will be the best fit for our company. We suggest you go through it before making up your mind.
https://www.slideshare.net/">Link 4
Working in highly collaborative teams and building quality code
Working in lots of different domains and client environments also understanding the business domain deeply
Architect highly scalable, highly available, reliable, secure and fault-tolerant systems with minimal guidance
Suggest new architectural elements to improve the existing architecture
Design and implement low latency RESTful services; Define API contracts between services; Version APIs and make them backward compatible
Translate business requirements into scalable and extensible design
Create platforms, reusable libraries and utilities wherever applicable
Continuously refactor applications to ensure high-quality design
Choose the right technology stack for the product systems/subsystems
Write high-quality code that are modular, functional and testable; Establish the best coding practices
Formally mentor junior engineers on design, coding and troubleshooting
Plan projects using agile methodologies and ensure timely delivery
Troubleshoot issues effectively in a distributed architecture
Communicate, collaborate and work effectively in a global environment
Operationalize releases by partnering with Tech operations on capacity planning and operability of the product.
Skills Required:
Proficient in JVM based language(like Java, Groovy), J2EE technology stack
Expertise in API design and development, experience in dealing with a large dataset
Strong in collections, algorithms, multithreading, also have worked on Springboot, Hibernate frameworks.
Practicing the coding standards (clean code, design patterns, etc)
Very strong object-oriented design skills, awareness of design patterns and architectural patterns
Performance tuning and Troubleshooting memory issues, GC tuning, resource leaks, etc.
Strong problem-solving skills, algorithmic skills and data structures
Experience in agile methodologies like Scrum
Good understanding of branching, build, deployment, continuous integration methodologies
Experience in leading a team (min 5)and mentoring engineers
Attitude to getting Stuff Done!
Ability to make decisions independently.
Good to have:
Hadoop knowledge
Cloud Platform Architecture
Groovy
Built on a foundation of AI we are automating enterprise application integration, data integration, data preparation for Analytics and bot automation. We are looking to build our engineering development center in Pune with passionate and entrepreneurial developers at all levels (Interns, Fresh Graduates, Senior Software Engineers and Architects).
Expectations -
- Have at least 3 years work experience in Java 8 or higher / J2EE Java development.
- Have experience of agile systems development methodologies such as SCRUM
- Experience in designing the solution and implementation.
- Is a communicative, positive, outgoing and driven team player.
- Solution-oriented, see opportunities and proactively proposing new solutions, speak and write fluently in English.
- Good to have certifications in Java, Spring etc.
- Experience in Java 8.
- Experience in Spring Boot and other spring framework like Spring data, AOP etc.
- Experience in MongoDB/ Kafka / RabbitMQ etc.
- Experience in REST API
- Have worked on microservices
- Should have worked on minimum 2- 3 projects
- Experience in writing effective Unit test case for better coverage.
- Experience in writing good quality code by following code quality tools likes SonarQube etc.
Must have skills :
JAVA 8, Apache Camel, Design Patterns, Web Services (REST), RabbitMQ, Build Tool (Maven or Gradle), Version Control (SVN or Git), SQL/PLSQL, Javascript, HTML, CSS, JQuery, Application Server (Websphere/JBoss/Weblogic etc.), JUnit.
Preferred skills :
- Spring, Spring MVC, Spring Boot, Hibernate/Spring Data JPA, .
- Experience working on Node JS/Angular JS/React JS
- Working experience on Docker
- Experience working on Agile methodologies
B.E/B.Tech/M.C.A/M.Sc(Computer science ) with first division.
- AWS Cloud exposure.
- Basic skills in using the Unix operating system logging on, sudo to another ID, navigating directory structures, debugging simple problems.
- Hands-on experience with building enterprise applications.
- Excellent trouble-shooting skills.
- Thoroughly understanding business problems and the business domain, and how potential solutions may address problems and enhance business capabilities.
- Experience in designing/development (design patterns) and testing of enterprise class systems.
- Good written and verbal communication skills.
- Ability to adapt to changing requirements.
- Ability to take direction and work with minimal supervision.
- Ability to work in deadline driven environment, and respond creatively to pressure.
- Ability to work on multiple projects simultaneously.












