Java, J2EE, Spring Boot, REST services, PostgreSQL
Experience with Elastic Search or any NoSQL DB is preferable

About Mobile Programming LLC
About
Mobile programming LLC is a US based MNC company. Our services are focused on Mobility Solutions, Custom App Development, Cloud Solutions, IoT, AR/VR, Blockchain, Artificial Intelligence & Machine Learning, Predictive Analytics & Big Data Solutions, and several other trending as well as emerging technologies.
You can find more details on - https://www.mobileprogramming.com/
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We are looking for an experienced Java Support Engineer with 4+ years of hands-on experience in supporting and maintaining Java/Spring Boot-based applications. The ideal candidate will be responsible for production support, debugging issues, and ensuring smooth application performance.
Key Responsibilities:
- Provide L2/L3 support for Java/Spring Boot applications in production and non-production environments.
- Perform incident analysis, root cause identification, and apply quick fixes or permanent solutions.
- Handle application deployments, environment monitoring, and performance tuning.
- Collaborate with development, DevOps, and database teams to resolve technical issues.
- Write and debug SQL queries, manage data fixes, and ensure database integrity.
- Use monitoring tools like Splunk, Kibana, or ELK Stack for issue investigation.
- Prepare documentation for recurring issues and maintain knowledge base.
Technical Skills:
- Strong in Core Java, Spring Boot, RESTful APIs
- Good knowledge of SQL / PL-SQL (Oracle / MySQL / PostgreSQL)
- Familiar with Linux/Unix commands and Shell scripting
- Exposure to microservices architecture and CI/CD tools (Jenkins, Maven)
- Hands-on experience with application monitoring and log analysis tools
- Knowledge of cloud (AWS / Azure) environments is a plus
Soft Skills:
- Strong problem-solving and analytical mindset
- Good communication and teamwork skills
- Ability to work under pressure and handle on-call support if required
Job Summary:
We are seeking a seasoned Java Backend Developer Lead to drive the design, development, and deployment of robust backend systems. This role requires hands-on coding expertise, architectural vision, and the ability to mentor and lead a team of developers in delivering high-performance, scalable applications.
Key Responsibilities:
- Lead the backend development team in designing and implementing microservices-based architectures using Java (preferably Java 11+).
- Architect and develop RESTful APIs and backend services using Spring Boot, Hibernate, and related frameworks.
- Collaborate with DevOps teams to streamline CI/CD pipelines using Jenkins, Docker, and Kubernetes.
- Ensure code quality through code reviews, unit testing (JUnit/TestNG), and integration testing.
- Optimize application performance and scalability through profiling and tuning.
- Guide team members in adopting best practices in software engineering, including Agile methodologies.
- Work closely with product managers, frontend developers, and QA teams to deliver end-to-end solutions.
- Maintain documentation and ensure knowledge sharing across the team.
Required Skills:
- Strong proficiency in Java, Spring Boot, and REST API development.
- Experience with relational databases (MySQL, PostgreSQL) and NoSQL (MongoDB, Redis).
- Familiarity with messaging systems like Kafka or RabbitMQ.
- Solid understanding of cloud platforms (AWS, Azure, or GCP).
- Experience with containerization and orchestration tools (Docker, Kubernetes).
- Excellent problem-solving, debugging, and analytical skills.
- Strong leadership and communication abilities.
Preferred Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
- 7+ years of backend development experience, with at least 2 years in a lead role.
- Exposure to security best practices and performance testing tools like JMeter.
We are looking for a passionate and experienced Java Developer with over 4 years of hands-on experience in building robust and scalable backend systems using Java, Spring Boot, and Microservices architecture.
Key Responsibilities:
- Design, develop, test, and deploy high-performance, scalable, and secure backend services using Java 8+, Spring Boot, and Microservices.
- Participate in the entire software development lifecycle (SDLC), from requirements gathering to production deployment and support.
- Collaborate with frontend developers, DevOps engineers, and product owners to deliver end-to-end features.
- Optimize application performance and ensure high availability and responsiveness.
- Write clean, maintainable, and reusable code while following best practices (coding standards, unit testing, CI/CD, etc.).
- Develop RESTful APIs and ensure their quality and consistency.
- Handle integration with external systems and third-party services.
- Participate in code reviews, provide constructive feedback, and mentor junior developers.
Technical Skills Required:
- Languages: Java 8 or above
- Frameworks: Spring Boot, Spring MVC, Spring Security
- Architecture: Microservices architecture and design patterns
- Databases: MySQL/PostgreSQL, MongoDB (optional)
- Messaging: Kafka, RabbitMQ (optional)
- API Development: RESTful APIs, Swagger/OpenAPI
- Version Control: Git, GitHub/GitLab
- Tools: Maven/Gradle, Jenkins, Docker
- Testing: JUnit, Mockito
- Cloud (optional): AWS/Azure/GCP exposure
- CI/CD & DevOps tools (optional): Jenkins, Docker, Kubernetes
Nice to Have:
- Experience in containerization and orchestration (Docker, Kubernetes).
- Knowledge of API Gateway, Service Registry (e.g., Eureka), and Circuit Breakers (e.g., Hystrix or Resilience4j).
- Experience with Agile methodologies (Scrum/Kanban).
- Familiarity with monitoring and logging tools (ELK, Prometheus, Grafana, etc.).
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Designing, implementing and maintaining Java-based applications
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Contributing in all phases of the development lifecycle
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Writing testable, scalable and efficient code
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Test and debug new applications and updates
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Maintain up to date code documentation
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Participating in code reviews
Should have worked on Springboot and Hibernate
Overview:
We are seeking an experienced Spring Boot developer with a passion for esports to join our team. The ideal candidate will have a strong track record of building and maintaining web applications using Spring Boot and a proven ability to work effectively in a team environment. Experience in the esports industry is a plus.
Responsibilities:
- Develop and maintain web applications using Spring Boot and related technologies
- Write clean, maintainable, and efficient code
- Collaborate with the design and product management teams to implement new features and functionality
- Work with the DevOps team to ensure proper deployment and monitoring of applications
- Troubleshoot and debug issues as they arise
- Write and maintain comprehensive documentation
Requirements:
- Strong professional experience with Java and Spring Boot
- Experience with building and deploying web applications
- Familiarity with web development frameworks such as Spring MVC or Spring WebFlux
- Experience with Git and version control
- Strong problem-solving and communication skills
Preferred:
- Experience in the esports industry
- Experience with cloud technologies such as AWS or Azure
- Familiarity with front-end development technologies such as HTML, CSS, and JavaScript
- Experience with data persistence technologies such as Hibernate or JPA
- Experience with testing frameworks such as JUnit or Mockito
· Strong knowledge of core java & spring boot
· Hands-on experience on payment switch integration
· Good knowledge of ISO8583 and EMV Data.
· Hands-on experience on any database like MySQL, oracle...etc.
· Should be strong in creating/ defining Swagger specs for REST APIs, understand REST principles, Guidelines.
· In depth knowledge of Card Scheme Specifications (VISA, MasterCard, Rupay and AMEX), Card
· Well versed with payment standards and ISO8583 and EMV data (mandatory),
· Hands on experience with Switch payment integration
· Resolve technical issues for designers and developers during project lifecycle
· Excellent problem solving/troubleshooting skills on Java/J2EE technologies
· Result oriented and a versatile engineer who is expert in providing solutions, creating architecture and designs.
· Excellent communication (written and verbal) and interpersonal skills
Payment card industry preferred
- Develop creative solutions and write technical design based on the requirements.
- Work closely with peer teams to ensure that applications are written to allow for overall system performance.
- Assist in tuning and optimization.
- Develop and execute unit tests for product components.
- Perform peer code reviews and provide feedback.
- Promote high quality, scalability, and timely completion of projects.
- Apply agile approach to coordinate development and determine project scope and limitations.
- Bachelor degree in Engineering, CS or equivalent experience
- Development in Core Java, J2EE, Struts, spring, Client-Side scripting, Hibernate, Database
- Development of scalable core-java applications, Web Applications and Web Services
- OOP concepts
- Data Structures, algorithms and their applications
- Strong problem-solving skills
- Experience in building microservices
- Strong experience with Spring Boot stack (spring cloud, spring-data)
- Extensive experience in developing and consuming REST APIs
- Experience in Kafka distributed messaging
- Hands-on experience in Redis, Apache Ignite, Hazelcast
- Strong experience in RDMS and NoSQL databases Mongo
- Experience in using Elastic Search
- Experience in profiling applications
- Strong analytical skills and general logical reasoning
- Excellent written and verbal communication skills.
- Good understanding of Software development life cycle (SDLC)
- Basic SQL queries












