Java Developer

Job Description below:

Required Skill Set

Senior Software Engineer- Java

• Experience in Core Java 5.0 and above, Data Structures, OOPS, Multithreading, Algorithms, Collections, Unix/Linux
• Possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS
• Good knowledge of multi-threading and high-volume server-side development
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

Job Brief-

·       Understand product requirements and come up with solution approaches

·       Build and enhance large scale domain centric applications

·       Deploy high quality deliverables into production adhering to the security, compliance and SDLC guidelines

Job Title: Java Developer (Full-time)

Location: Pune (Onsite)

Experience Required: 3+ Years

Working Days: 5 Days (Mon to Fri)

Key Responsibilities:

• Design, develop, and deploy scalable microservices using Java and Spring Boot.
•  Implement RESTful APIs and integrate with external systems and databases.
• Build and manage services on AWS Cloud using components like ECS, Lambda, S3, RDS,
• and API Gateway.
• Collaborate with DevOps to integrate CI/CD pipelines for automated builds, tests, and
• deployments.
• Ensure application performance, reliability, and security in a cloud-native environment.
• Participate in code reviews, troubleshooting, and performance optimization.
• Work closely with architecture, QA, and product teams to deliver high-quality solutions.

Required Skills & Experience:

• Strong proficiency in Java, Spring Boot, and microservice architecture. 
• Hands-on experience with AWS Cloud services (ECS, EKS, Lambda, RDS, CloudWatch,etc.).
•  Knowledge of Docker, Kubernetes, and CI/CD tools (Jenkins, GitLab, or AWS
• CodePipeline).
• Experience with REST APIs, JSON, and message brokers (Kafka, RabbitMQ, or SNS/SQS).
• Proficiency in SQL and experience with relational databases (Oracle, MySQL, or
• PostgreSQL).
•  Familiarity with security best practices, monitoring, and logging in the cloud.

We are looking for a Java Backend Developer to join our team. You will be responsible for developing and maintaining the server-side logic and databases of our applications, ensuring they run smoothly and efficiently.

Responsibilities:

• Write and maintain server-side code using Java.
• Develop and integrate APIs to support frontend functionality.
• Work with databases to store, retrieve, and manipulate data.
• Troubleshoot, debug, and optimize backend performance.
• Collaborate with frontend developers to integrate backend and frontend systems.
• Write unit tests to ensure code quality.

Required Skills:

• Strong experience with Java.
• Familiarity with Spring Boot or other Java frameworks.
• Knowledge of relational databases (e.g., MySQL, PostgreSQL).
• Understanding of REST APIs.
• Experience with version control systems (e.g., Git).
• Basic knowledge of unit testing (e.g., JUnit).

Preferred Skills:

• Familiarity with Microservices and cloud platforms.
• Experience with Docker and containerization.

Java Tech Lead (5–6 Years Experience)

About the Role

We are seeking a highly skilled Java Tech Lead with 5–6 years of hands-on experience in backend engineering, architecture design, and leading development teams. 

The ideal candidate will combine strong technical expertise in Java frameworks with a deep understanding of system design, scalability, and performance optimization.

This role involves technical leadership, code reviews, and architectural decision-making for complex enterprise systems — with occasional exposure to analytics-driven and Python-based components.

Key Responsibilities

• Architect, design, and develop scalable backend systems using Java (Quarkus, Spring Boot, Spring, Java EE).
• Own the architecture — ensure modular, extensible, and high-performance service design.
• Lead and mentor a team of developers; conduct code reviews, enforce best practices, and ensure high code quality.
• Collaborate with cross-functional teams (frontend, DevOps, product, data) to deliver integrated, end-to-end solutions.
• Design and optimize database schemas (MySQL, PostgreSQL) and ensure efficient query performance.
• Implement and maintain microservices and distributed systems with strong fault tolerance and observability.
• Drive the adoption of modern development workflows — Git branching strategy, CI/CD, and code quality automation.
• Analyze system performance bottlenecks, implement monitoring, and ensure smooth production deployments.
• Contribute to architecture reviews, technical documentation, and design discussions.
• Occasionally contribute to Python-based analytics modules or automation scripts.
• Work with AWS cloud services (EC2, S3, RDS, Lambda) for deployment, scaling, and infrastructure automation.

Required Skills & Qualifications

• 5–6 years of professional experience in backend application development using Java.
• Strong proficiency in Java frameworks: Quarkus, Spring Boot, Spring, Java EE.
• Proven experience in architecture design, system decomposition, and microservices design principles.
• Solid understanding of object-oriented design (OOD), design patterns, and SOLID principles.
• Strong experience with relational databases (MySQL, PostgreSQL) and query optimization.
• Good understanding of event-driven systems, RESTful APIs, and asynchronous processing.
• Proficiency in Git for version control and team collaboration.
• Strong analytical and debugging skills; ability to diagnose complex production issues.

Good to Have

• Hands-on experience with Python for data processing or analytics integrations.
• Familiarity with AWS cloud architecture and cost optimization practices.
• Experience with CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI).
• Knowledge of Docker/Kubernetes for containerized deployments.
• Exposure to NoSQL databases (MongoDB, DynamoDB, Cassandra).
• Experience with message queues (Kafka, RabbitMQ, or AWS SQS).
• Understanding of system scalability, caching (Redis/Memcached), and observability stacks (Prometheus, Grafana, ELK).

Soft Skills

• Strong leadership, mentoring, and communication skills.
• Proven ability to drive technical decisions and balance short-term delivery with long-term architectural health.
• Collaborative mindset — works closely with product, design, and operations teams.
• Passion for clean architecture, high performance, and continuous improvement.
• Self-driven with a strong sense of ownership and accountability.

Java Developers

Exp: 3-5 years

Joining: 15-30 days

Skillset: Java, Microservices, Spring, Springboot, Hibernate

Greetings from HashStudioz Technologies!

We are happy to share the details of 'Java Developer'. Kindly read the job description carefully before your technical Interview Round.

Company Profile :
  - We are a global leader in product development, having a wide range of technology experts under the same roof. You would be surprised to meet our enthusiastic team of blockchain, cloud, Mobility & Automation.

- Our mission is to help companies adopt new technologies and simplify complicated issues that arise amid technology evolution.

- We are designers, engineers, developers, analysts, programmers, testers, cloud experts, blockchain specialists, automation freaks & smart workers who have developed applications that are now being used by millions of consumers worldwide.

- We know how to build successful software products and welcome startup minds to discuss their product feasibility & scalability.

Company Profile:- https://www.hashstudioz.com/">https://www.hashstudioz.com/

Job Profile:  "Java Developer"

Industry:        IT-Software / Software Services

Role:

1. Ensure effective Design, Development, and Support activities in line with client needs and architectural requirements.
2. Ensure continual knowledge management
3. Adherence to the organizational guidelines and processes
4. Define best practices, coding standards, and development methodology as part of the master solution design and ensure compliance with these guidelines
5. Highlight and resolve solution dependencies on enterprise systems
6. Good problem-solving capabilities and troubleshooting skills
7. Should have excellent communication (oral and written) and interpersonal skills

Requirements:

1. 0 -6 Years of experience in Java, J2EE Development
2. Must have Hands-on Experience in Angular/ React
3. Fluency in programming constructs and working with Spring/Spring Boot/Spring MVC and Hibernate framework
4. Good experience with 1-2 Frontend Technologies eg JavaScript/Angular/React/jQuery
5. Good experience with MySQL/MongoDB
6. Design and Development of project modules independently
7. Handle SDLC individually
8. Good understanding of Object-Oriented Programming and Design Concepts.

Technical Skills/Requirements

 Demonstrated expertise in building, shipping and supporting innovative, scalable

enterprise-class applications

 Strong familiarity with Object Orientation concepts

 Strong Experience in Java, J2EE, Core Java, Advance Java is must

 Strong Experience in working with database server is must

 Experience with web development frameworks like Spring is must.

 Experienced in using Websphere, WebLogic, JBOSS or TomCat application

servers

 Must be knowledgeable in at least one of the relational DBs (Oracle, DB2 or MS-

SQL)

 Experience is Javascript

 Experience in CSS, Angular, EXTJS, Bootstrap, JQuery is preferred

 Experience in JSP, Servlet, Tag Libray,, XSLT, Restful API’s is preferred

 Good understanding of Java, J2EE, SOA/Web services, EAI patterns, long

running business processes, UML and OOAD.

 4+ years of overall software development experience, preferably in a product

development company

• Experience with Hibernate and Spring.
•   Experience with Springboot, spring MVC
• Experience with all phases of the Software Development Lifecycle, including system analysis, design, coding, testing, debugging and documentation
• Teamwork & collaboration skills to work across organizations
• Problem solving skills to develop quick yet sound solutions to resolve complex issues
• Programming Language(s): Java, J2EE, JSON, HTML, DHTML, HTML 5, XML, EXTJS.
• Experience with XML/HTTP and Web Services
• Experience with HTML, JSP, CSS, JQuery / Ajax / JSON,
•     Experience /Knowledge of Angular, React.
• Experience building J2EE based Web Applications
• Experience with MySql.

Deep expertise and hands on experience in Core java
∙ Hands-on experience with at least 2 years in Spring, Hibernate & Restful web services.
∙ Hands-on experience with at least 3 years in GUI development using Angular/React

, HTML & JavaScript. Added advantage if worked on Angular 5 and above, NodeJS, Bootstrap, jQuery.
∙ Clear understanding of Software Development life cycle and process Oriented. Would be great if worked on Agile or Continuous Delivery (CD) based projects before.
∙ Good fundamentals in Core Programming, JDBC, Object Oriented design & Design patterns
∙ Should have exposure to Oracle SQL. Any other DB apart from Oracle is also fine, provided the fundamentals of RDBMS are clear. Good to have experience in writing Sqls, stored procedures and functions.
∙ Experience in creating & executing unit tests using test driven approach with JUnit or any other equivalent.