Java Developer

• Experience in Core Java, CXF, Spring. 
• Experience in spring boot, microservices. 
• Extensive experience in developing enterprise-scale n-tier applications for the financial domain. Should 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, preferably Sybase database 
• Good knowledge of multi-threading and high volume server side development 
• Experience in sales and trading platforms in investment banking/capital markets 
• 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. 

Build Products. Solve Real Problems. Grow with Us.

Are you passionate about building scalable applications, solving complex engineering challenges, and working with modern technologies?

At NonStop io Technologies, we're looking for a talented Java Developer who enjoys creating high-quality software, collaborating with smart teams, and continuously learning new technologies.

This isn't just another development role. You'll work on real-world products, modern architectures, cloud technologies, AI-powered development tools, and systems that impact businesses and users every day.

If you're someone who loves writing clean code, takes ownership of your work, and wants to grow into a strong technical contributor or future tech lead, we'd love to connect with you.

About NonStop io Technologies

NonStop io Technologies is a product engineering company with 10+ years of experience building web and mobile applications for startups and enterprises.

We're a team of passionate engineers who believe in:

• Building products, not just projects
• Continuous learning and innovation
• Engineering excellence and quality delivery
• Long-term ownership and customer success
• Collaboration, transparency, and growth

Our engineers don't just execute tasks, contribute ideas, influence architecture decisions, and help shape products from concept to scale.

What You'll Be Working On

• Designing and developing scalable backend applications using Java and Spring Boot
• Building REST APIs and Microservices
• Working on cloud-ready applications and distributed systems
• Collaborating with product managers, designers, and engineers
• Improving application performance, scalability, and reliability
• Contributing to architecture and technical design discussions
• Leveraging AI-powered development tools to enhance productivity
• Working with CI/CD pipelines and modern software engineering practices.

Skills We're Looking For

Must Have

• 3–6 years of experience in Java development(Min 3 Years)
• Strong expertise in Java, Spring Boot, Spring MVC, and Hibernate/JPA
• Experience building Microservices and REST APIs
• Strong understanding of OOP, Design Patterns, and Clean Coding Practices
• Experience with MySQL or PostgreSQL
• Working knowledge of Git
• Hands-on experience with Frontend Technologies (HTML, CSS, JavaScript, React/Angular)
• Experience with Maven or Gradle

Good to Have

• Experience with AWS or cloud environments
• Exposure to CI/CD pipelines and DevOps practices
• Experience with distributed systems and scalable architectures
• Knowledge of automated testing frameworks
• Familiarity with AI-assisted development tools such as GitHub Copilot

Why Developers Love Working With Us

• Work on real products with real impact
• Opportunity to work on modern architectures and cloud technologies
• Exposure to AI-powered software development practices
• Learn directly from experienced engineers and architects
• Friendly, collaborative, and growth-oriented culture
• Freedom to experiment, innovate, and share ideas
• Continuous learning and career growth opportunities
• Work with a team that values ownership, trust, and engineering excellence

Interested in Joining Our Team?

We're always excited to connect with developers who are curious, driven, and passionate about technology.

If you enjoy building quality software, learning new technologies, and taking ownership of your work, this could be the right opportunity for you.

We look forward to connecting with you!

We are looking for someone who:

• Has strong expertise in Java Backend Development
• Has excellent problem-solving and analytical skills
• Can work independently as well as collaborate effectively with teams
• Has experience working on enterprise-scale applications
• Is comfortable working in a fast-paced environment
• Has AI experience or a good understanding of AI concepts, tools, or AI-powered applications

JOB DESCRIPTION:

Location: mumbai, bangalore, pune

Mode of Work : 3 days from Office

DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API

• Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
• Implement and integrate APIs using Spring Framework and Apache CXF.
• Build microservices-based architecture for scalable and distributed systems.
• Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
• Optimize performance through efficient multithreading, memory management, and algorithm design.
• Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
• Work with RDBMS (preferably Sybase) for backend data integration.
• Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
• Work in Unix/Linux environments for deployment and troubleshooting.

Required Skills & Experience:

• 3– 8 years of strong hands-on experience in Core Java, Spring boot, microservices, data structures.
• Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
• Proven experience with Spring, CXF, and REST/SOAP web services.
• Solid understanding of microservices architecture and distributed systems.
• Experience working with Sybase or other relational databases.
• Expertise in multithreading, concurrency, and high-throughput server-side development.
• Exposure to capital markets, sales & trading platforms, or similar financial services applications.
• Good working knowledge of Unix/Linux environments.
• Experience in solution architecture and design documentation is a strong plus.
• Strong problem-solving skills, analytical thinking, and a proactive attitude.
• Excellent communication and interpersonal skills to work effectively with global teams.

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Previous experience in investment banking, capital markets, or financial technology domains.

For more details:

Website: www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: Wissen Technology

Job Description: https://drive.google.com/file/d/1P2sPZKidnBCGHEIunjdRaFLUHX3R5_Ov/view?usp=drive_link

Job description:

We are looking for enthusiastic and motivated Java Developers (0 years experience) to join our development team. The ideal candidate should have strong Java fundamentals and a passion for learning and building scalable applications.

Roles & Responsibilities:

Develop, test, and maintain Java-based applications

Write clean, efficient, and well-documented code

Work with senior developers to design application features

Participate in code reviews and debugging activities

Integrate backend logic with databases and APIs

Learn and adapt to new technologies and frameworks

Required Skills:

Strong knowledge of Core Java and OOP concepts

Basic understanding of Spring / Spring Boot

Knowledge of SQL & relational databases

Familiarity with REST APIs

Basic understanding of HTML, CSS, JavaScript (added advantage)

Eligibility Criteria:

Freshers

BE / BTech / MCA / BCA or relevant degree

Good problem-solving and communication skills

Willingness to learn and grow in a fast-paced environment

Job Types: internship

About the Role

We are looking for a highly skilled Senior Java Developer with 8+ years of experience in designing, developing, and implementing enterprise-grade applications. The ideal candidate should have strong expertise in Java-based technologies along with practical experience in AI-powered applications, Generative AI, Machine Learning integrations, or AI frameworks. This role will involve working closely with cross-functional teams to build scalable, high-performance solutions leveraging modern AI technologies.

Technical Skills

• 8+ years of hands-on experience in Java development.
• Strong expertise in:
• Java 8/11/17
• Spring Boot
• Microservices Architecture
• RESTful APIs
• Hibernate/JPA
• Multithreading & Concurrency
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Solid understanding of containerization technologies such as Docker and Kubernetes.
• Experience with CI/CD pipelines and DevOps practices.

Experience and Required Skill Sets: 

1      Solid experience in software design and development using Microsoft ASP.NET framework, C#, Visual Studio, and in writing clean, readable, and easily maintainable code

2      5+ years of experience in WCF, WPF, VB.NET, SQL Server, JQuery, Angular 10 and above.

3      5+ years of experience in developing highly scalable REST/Web APIs

4      5+ years of experience in developing highly efficient SQL/NoSQL Queries

5      5+ years of experience in Relational and Document databases

6      Strong understanding of object-oriented programming and possess strong fundamental design principles for building a scalable application.

7      Experience in using the MVC framework, working knowledge in APIs, and Service Oriented Architecture

8      Strong understanding of object-oriented programming and possess strong fundamental design principles for building a scalable application.

9      Experience in Angular version 10 and above is required 

10   Expert in SQL programming & Database Design (Stored procedure, Function, Trigger, Constraints, Replication) 

11   Strong ability in HTML and JavaScript (AJAX, DOM)

12   Development experience with data integration technologies including REST, SOAP, JSON, XML

13   Expertise in programming and usage of any unit testing framework. Expertise in integration testing and continuous integration.

14   Experience working in a DevOps environment will be an added advantage.

Responsibilities: 

•       Ability to create complex, enterprise-transforming applications that meet and exceed client expectations. 

•       Responsible for the bottom line. Strong project management abilities. Ability to encourage the team to stick to timelines.

•       Follow best-in-class coding practices and review the solutions vis-à-vis the requirements and technical specifications.

•       Should demonstrate strong client interfacing capabilities like emails and calls with clients in the US/UK

Java Developer

Experience: 4+ Years

Location: Pune

Responsibilities:

• Actively contribute to designing, developing, testing, deploying, and maintaining software.
• Collaborate with the team to develop web services, mobile applications, and web applications. Create, enhance, deploy, and maintain functional, secure, and high-quality applications.
• Write well-designed, efficient, secure, and high-performance code.
• Follow best practices in software design and testing.
• Review, test, and debug team members' code.
• Actively contribute to writing and updating technical documentation.

Candidate Requirements:

• Minimum 4+ years of experience in web-based development using the following technologies:

 - Core Java, Spring MVC, Node.js, and ORM.

 - Working knowledge of relational databases, NoSQL databases, and caching technologies.

 - RESTful APIs, SOAP, and JSON.

 - Angular, HTML5, and CSS (StencilJS).

 - Knowledge of application performance tuning is mandatory.

• Proficient understanding of code versioning tools, such as Git.
• Experience in designing and developing microservices-based applications.
• Expertise in real-time issue debugging, root cause analysis, and providing accurate technical solutions.
• Hands-on experience in integrating and troubleshooting third-party APIs such as Perfios, IDfy, Karza Technologies, NSDL, Legality, Hunter, RBIH, and JanSamarth, including API request/response handling, authentication, error handling, and production issue resolution.
• Knowledge of Agile Scrum development methodologies.
• Ability to integrate applications with network systems, servers, and databases.
• Ability to troubleshoot application development and usage issues.
• Excellent conceptual and critical-thinking capabilities.
• Self-directed and self-motivated, with the ability to take charge or work in a supporting role.

Good to Have:

• Experience in the BFSI (Banking, Financial Services, and Insurance) or Fintech domain.

Required Skills

• 5+ years of experience in Backend Java Development.
• Strong proficiency in Core Java.
• Hands-on experience with Spring Boot.
• Experience with Spring Framework, Spring Data JPA, and Hibernate.
• Experience with Spring Batch.
• Strong understanding of RESTful APIs.
• Good knowledge of Microservices architecture.
• Strong experience with SQL databases.
• Exposure to NoSQL databases.
• Experience with Git and CI/CD.
• Experience with JUnit, Mockito, or similar testing frameworks.
• Strong debugging and troubleshooting skills.
• Good understanding of software development best practices.

Good-to-Have Skills

• Docker / Kubernetes
• AWS / Azure / GCP
• Kafka / RabbitMQ
• Redis
• Swagger / OpenAPI
• Monitoring and logging tools