
Senior Java Developer
at A satisfactorily cater to the demands of its customer base
As a senior developer you will be responsible to manage the software
development life cycle from planning to prioritizing to testing and release.
Responsibilities includes gathering system and team product requirements,
building java modules and testing features before release. Should have hands
on experience developing software with agile methodologies and are ready to
lead our junior developers.
Responsibilities:
• Contribute to all phases of development lifecycle.
• Planning of API workflow.
• Understanding the requirements all the teams involved and planning the
development process.
• Write well designed, testable, efficient code.
• Prepare and produce releases of software components.
• Support continuous improvements by investigating alternatives and
technologies and presenting these for architecture review.
• Designing, implementing, and maintaining java applications that are
often high-volume and low latency.
• Identify bottlenecks and bugs and advise solutions to these problems.
• Develop highly scalable REST APIs to use in our applications.
• Guide the team and help them in any complex situations.
Required Qualifications
We are looking for individuals who are curious, excited about learning, and navigating
through the uncertainties and complexities that are associated with a growing company.
Some qualifications that we think would help you thrive in this role are:
• Minimum 8+ Years in a Java programming.
• Expert hands-on knowledge of latest technology, good exposure to web
technologies and open to all technologies like Java, J2EE, Spring Boot,
Microservices, Cloud computing, any DB.
• Very good exposure to DevOps concepts and tools, Continuous Integration and
Continuous Delivery.
• Quick learner believes in continuous learning and acts as a catalyst for building
the culture within the organization.
• Analytical thinking skills, problem solving with strong exposure to root causing
tools and techniques and ability to come up with solutions in complex
situations.
• Familiar with various design and architectural patterns.
• Bachelor/Masters of CS/IT Engineering, BCA/MCA, B Sc/M Sc in CS/IT
Preferred Qualifications
• Deep insights of Java and J2EE internals such as memory management,
transaction management, etc.
• Skill for writing reusable Java libraries.
• Proficient understanding of code versioning tools, such as Git.
• Familiarity with build tools such as Ant, Maven, and Gradle.
• Ability to work without guidance and under tight deadlines.
• Result oriented and focused on meeting deliverable timelines.
• Teamwork and willingness to listen to others.
• Communicate effectively
• Good knowledge of microservices.
• Expertise in developing enterprise level web applications and RESTful APIs
using Microservices with demonstrable production-scale experience.
• Strong background working with Linux/Unix environments.
• Working experience in industry standard protocols related API security.
• Clear understanding of web services and SOA related standards like
REST/OAuth/JSON.

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JOB DESCRIPTION:
- 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:
- 4– 12 years of strong hands-on experience in Core Java.
- 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.
Why Join Wissen Technology?
- Be a part of a high-growth organization that has expanded 400% in the last five years.
- Work alongside leadership and engineers from IITs, IIMs, MIT, Wharton, and other top institutions.
- Engage with Fortune 500 clients and deliver high-impact projects.
- Certified as a Great Place to Work®.
- Recognized as a Top 20 AI/ML Vendor by CIO Insider (2020).
- Work on next-gen technologies: AI/ML, Big Data, Cloud, DevOps, RPA, and more.
- Global presence across US, India, UK, Australia, Mexico, and Canada.
Website : www.wissen.com
Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore/Mumbai with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. Required Skills: • Exp. - 3 to 8 years. • Experience in Core Java and Spring Boot. • Extensive experience in developing enterprise-scale applications and systems. 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. • Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux. • Excellent problem solving and coding skills. • Strong interpersonal, communication and analytical skills. • Should have the ability to express their design ideas and thoughts. About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
Participate in the entire application lifecycle, focusing on coding and debugging
Write clean code to develop functional web applications
Troubleshoot and debug applications
Perform UI tests to optimize performance
Manage cutting-edge technologies to improve legacy applications
Collaborate with Front-end developers to integrate user-facing elements with server-side logic
Gather and address technical and design requirements
Build reusable code and libraries for future use
Follow emerging technologies
Desireable skills
3+ years of experience as a Back-end developer
In-depth understanding of the entire web development process (design, development, and
deployment)
Hands-on experience with Java, Springboot and Hibernate
Working knowledge in SQL
Familiarity with Agile methodology of development process
Problem-solving attitude
Job Summary:
We are seeking a skilled and experienced Java Developer with hands-on expertise in AWS, Spring Boot, and Microservices architecture. As a core member of our backend development team, you will design and build scalable cloud-native applications that support high-performance systems and business logic.
Key Responsibilities:
- Design, develop, and maintain backend services using Java (Spring Boot).
- Build and deploy microservices-based architectures hosted on AWS.
- Collaborate with DevOps and architecture teams to ensure scalable and secure cloud solutions.
- Write clean, efficient, and well-documented code.
- Optimize application performance and troubleshoot production issues.
- Participate in code reviews, technical discussions, and architecture planning.
Must-Have Skills:
- 4.5+ years of experience in Java development.
- Strong proficiency in Spring Boot and RESTful APIs.
- Proven hands-on experience with AWS services (EC2, S3, Lambda, RDS, etc.).
- Solid understanding of microservices architecture, CI/CD, and containerization tools.
- Experience with version control (Git), and deployment tools.
Node.js Developer Responsibilities:
- Developing and maintaining server-side network components.
- Collaborating with front-end developers on the integration of elements.
- Designing customer-facing UI and back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Recommending and implementing improvements to processes and technologies.
- Keeping informed of advancements in the field of Node.js development.
Node.js Developer Requirements:
- At least two years of experience as a Node.js developer.
- Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
- Knowledge of front-end technologies such as HTML5 and CSS3.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
- Great organizational and time management skills.
- Availability to resolve urgent web application issues outside of business hours.
● Proven work experience as a Back-end developer.
● In-depth understanding of the entire web development process (design, development and deployment).
● Proficient in Java, with a good knowledge of its ecosystems
● Basic understanding of JVM, its limitations, weaknesses, and workarounds
● Ability to decide when to use relational vs NoSQL databases and must be experienced with at least one of
the relational databases (MySQL) as well as experience with ElasticSearch will be good to have
● Familiarity with concepts of MVC, JDBC, and RESTful
● Experience with Spring, Spring Boot, Spring MVC
● Experience in CI/CD and Cloud technologies
● Expertise in developing enterprise-level web applications and RESTful APIs using MicroServices, with
demonstrable production-scale experience
● Familiarity with front-end languages (e.g. HTML, JavaScript and CSS) - Not mandatory
● Participation in coding competitions such as hackathon, hackerrank will be added advantage.
Job Overview:
As a Senior Software Engineer, you will work as part of a software development team and be
responsible for designing, implementing, and maintaining the back-end of fast-growing web/mobile
applications.
You could be an ideal candidate if you have a Bachelor's degree in Computer Science from a reputed
college. You need to have expert-level programming skills in Java along with experience in database
management and computer architecture. You should have experience working effectively in software
development teams ensuring tight deadlines are met. You should be passionate about writing elegant
code that solves meaningful real-life problems.
You should have already successfully built and shipped products/modules of significant complexity.
What will your role look like?
● Write well-designed, design pattern-based, testable, efficient, and high-quality code in Java.
● Design (LLD & HLD) and architect technical solutions for the business problems of a large-
scale system and support needs of growing scale.
● Prepare and produce releases of software components.
● Contribute to all phases of the development lifecycle.
Roles and Responsibilities
Who are we looking for?
● B.Tech/M.Tech/MCA degree in Computer Science, Engineering or a related subject
● 2-4 years of relevant work experience.
● Strong problem-solving skills, Computer science fundamentals, Data structures, and
Algorithms.
● Solid OOP and software design knowledge with a great understanding of Design Patterns –
you should know how to create software that’s extensible, reusable, and meets desired
architectural objectives.
● Hands-on experience in Java 8, Spring Boot, and Microservices.
● Excellent knowledge of Databases such as MySQL and MongoDB
● Hands-on experience with caching(Redis), REST APIs, SOAP APIs, JWT, Third-party API
integration, Logging(ELK), etc.
● Experience with all phases of the software development life cycle, best practices, and Agile
Software Development.
● Ability to work autonomously, be excited by new technologies, and never back down from the
challenges of scale.
- Looking for 2+ Years of Java Developers.
- Looking for Immediate joiners.
- Application development experience in Spring Framework, Spring MVC ,Spring Boot.
- Experience in designing and developing microservices.
- Experience in data structures.
Location- PAN India
must know Core Java,Eclipse
immediate joiner
NP - 15 dayss or less
- Build large scale enterprise applications.
- Responsible for providing deep technical expertise in designing and delivering end to end high performance, scalable & flexible solutions using Java and Open Stack technologies including Mobility/Responsive Web apps, APIs, application & data Integration, scalable databases, DevOps, Cloud Computing.
- He/ She would be also responsible to experiment, explore and demonstrate application of new technologies by means of conducting quick prototypes to solve business problems. Work with the direction from Solution Architect/ Enterprise Architect and co-create solutions with rest of the IT delivery teams

