Java Developer

JOB DESCRIPTION:

Location: mumbai

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– 7 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.

Greetings from Wissen Technology!

We are hiring Java Developers for Mumbai location.

Exp - 4 - 8 years

Location - Mumbai (Goregaon) - Hybrid

Notice Period - immediate or serving notice period only

Interview Process - Initial rounds virtual + Final round F2F

Software Engineer/Senior Software Engineer/Lead 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 analyse, 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

Key Responsibilities :

- Design, develop, and maintain Java-based applications using Java SE/EE.

- Implement, test, and deploy microservices and RESTful APIs using Spring Boot and related technologies.

- Develop efficient and scalable solutions by writing clean, maintainable, and optimized code.

- Collaborate with cross-functional teams to understand business requirements and provide technical solutions.

- Write and execute unit tests using JUnit to ensure code quality and functionality.

- Perform code reviews to ensure adherence to best practices and coding standards.

- Troubleshoot, debug, and optimize code for performance and scalability.

- Stay up to date with the latest Java technologies and development best practices.

Required Skills and Qualifications :

- Bachelor's degree in Computer Science, Engineering, or a related field.

- Years of experience in Java development (Java SE/EE, Spring, Hibernate).

- Strong experience with JUnit and test-driven development (TDD).

- Proficient in building microservices using Spring Boot and RESTful APIs.

- Experience with version control tools like Git.

- Familiarity with build tools such as Maven or Gradle.

- Strong understanding of object-oriented programming (OOP) principles.

- Familiarity with databases (SQL/NoSQL) and ORM frameworks (e.g., Hibernate).

- Experience with cloud platforms like AWS (preferably).

- Strong problem-solving skills and the ability to work in a collaborative environment.

Preferred Skills :

- Experience with continuous integration/continuous deployment (CI/CD) tools.

- Knowledge of containerization technologies like Docker.

- Familiarity with Agile methodologies and Scrum framework.

- Knowledge of front-end technologies (HTML, CSS, JavaScript) is a plus.

Responsibilities:

• Design, develop, and maintain web applications using Java and React JS.

• Collaborate with cross-functional teams to define, design, and ship new features.

• Ensure the performance, quality, and responsiveness of applications.

• Identify and correct bottlenecks and fix bugs.

• Maintain code integrity and organization.

• Build reusable components and front-end libraries for future use.

• Translate designs and wireframes into high-quality code.

• Optimize components for maximum performance across a vast array of web-capable devices and browsers.

• Participate in team meetings and discussions to understand user needs and functionalities.

• Perform code reviews and improve and maintain code quality.

• Work closely with product management and back-end developers to integrate user-facing elements with server-side logic.

• Keep up-to-date with the latest industry trends and technologies to ensure applications are current and competitive.

Requirements:

• Strong proficiency in Java.

• Familiarity with RESTful APIs and web services.

• Good project management skills.

• Strong communication and teamwork abilities.

🚀 We’re Hiring: Senior Software Engineer – Backend | Remote | Full-time

Are you a backend engineering expert who thrives in high-growth startup environments?

Do you enjoy solving complex challenges with the latest technologies like Java 18+, Spring Boot 3+, and scalable microservices?

We’re looking for a Senior Software Engineer – Backend to help us build a world-class data science platform that powers cutting-edge AI solutions.

What You’ll Do:

🔹 Build and optimize scalable, secure backend systems

🔹 Collaborate with product owners & architects to shape business solutions

🔹 Deliver high-quality, production-ready code with best practices (unit testing, CI/CD, automation)

🔹 Work with modern tools like Kubernetes, Docker, NodeJS, React

🔹 Contribute to a high-performance engineering culture and drive innovation

What We’re Looking For:

✔️ 6+ years of experience with Java/Python, Spring Boot, REST APIs, microservices

✔️ Strong CS fundamentals, algorithms, and system design skills

✔️ Experience in secure web applications & scalable backend architectures

✔️ Knowledge of cloud (AWS/GCP/Azure), GitHub Actions, and Unix scripting

✔️ Startup mindset – fast learner, problem solver, impact-driven

🌍 Remote | High-growth environment | Global impact

Job Summary:

As a Java Spring Boot Developer, you will play a key role in designing, developing, and maintaining robust backend services and APIs. With 2.5+ years of experience, including knowledge in Kotlin, you will work alongside a cross-functional team to build scalable and performant systems.

Key Responsibilities:

• Design, develop, and maintain efficient, reusable, and reliable Java and Kotlin code
• Build and consume RESTful APIs and microservices using Spring Boot
• Ensure the best possible performance, quality, and responsiveness of applications
• Collaborate with product managers, QA engineers, and DevOps for end-to-end delivery
• Troubleshoot and resolve performance bottlenecks, bugs, and technical issues
• Participate in code reviews, knowledge sharing, and continuous improvement

Required Skills & Qualifications:

• 2.5+ years of experience with Java and Spring Boot
• Strong understanding of RESTful APIs, MVC, and microservices architecture
• Experience with relational and NoSQL databases
• Proficiency with Git and Agile/Scrum methodologies

Preferred Skills:

• Familiarity with Docker, Kubernetes, and CI/CD tools
• Exposure to cloud platforms such as AWS or Azure
• Experience with unit testing and test automation frameworks

• Looking for sr.java full stack developer
• java, springboot, angular 2/4/6/8, html and css
• experience with unit testing
• good exposure to oops

• 4 year degree or equivalent experience
• 8 to 13 years of software development experience 
• Demonstrates broad and deep expertise in any programming languages(Java, GoLang) and open source frameworks (e.g., Spring Boot, Micronut).
• Designs, develops, and approves end-to-end functionality of a product line, platform, or infrastructure and microservices.
• Must have exposure to at least one cloud product/platform development.
• Working knowledge of any one client side framework like ReactJS or Angular, etc.
• Should have exposure to one or more databases like Cassandra, MongoDB, Graph, Redis, Elastic Search and Postgres.