
Java Developer – Job Description
Wissen Technology is now hiring a Java Developer - Bangalore 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 consultancy.
Required Skills:
• Exp. - 2 to 7 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 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.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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Role:Java Developer
Job Description: We are looking for a talented and motivated Software Engineer with expertise in both Windows and Linux operating systems and solid experience in Java technologies. The ideal candidate should be proficient in data structures and algorithms, as well as frameworks like Spring MVC, Spring Boot, and Hibernate. Hands-on experience working with MySQL databases is also essential for this role.
Responsibilities:
● Design, develop, test, and maintain software applications using Java technologies.
● Implement robust solutions using Spring MVC, Spring Boot, and Hibernate frameworks.
● Develop and optimize database operations with MySQL.
● Analyze and solve complex problems by applying knowledge of data structures and algorithms.
● Work with both Windows and Linux environments to develop and deploy solutions.
● Collaborate with cross-functional teams to deliver high-quality products on time.
● Ensure application security, performance, and scalability.
● Maintain thorough documentation of technical solutions and processes.
● Debug, troubleshoot, and upgrade legacy systems when required.
Requirements:
● Operating Systems: Expertise in Windows and Linux environments.
● Programming Languages & Technologies: Strong knowledge of Java (Core Java, Java 8+).
● Frameworks: Proficiency in Spring MVC, Spring Boot, and Hibernate. ● Algorithms and Data Structures: Good understanding and practical application of DSA concepts.
● Databases: Experience with MySQL – writing queries, stored procedures, and performance tuning.
● Version Control Systems: Experience with tools like Git.
● Deployment: Knowledge of CI/CD pipelines and tools such as Jenkins, Docker (optional
Strong written/verbal communication skills
· Minimum 5+ Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
· Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
· Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
· Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
· Expert level understanding of Object-Oriented Concepts and Data Structures
· Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.
Responsibilities
- Software Engineering
- Design and develop highly scalable, available, reliable, secure and fault tolerant systems with minimal guidance for a market leader in the logistics industry
- Partner with team members on functional and nonfunctional requirements and spread design philosophy, goals and improve the code quality across the team
- Research new technologies and tools that enable building the next generation of our services
- Provide technology leadership to the team and foster engineering excellence
- Product Delivery
- Partner with product managers to define and execute on the feature roadmap
- Translate business requirements into scalable and extensible design
- Coordinate with various cross functional teams on planning and execution
- Maintaining automated build / test / deployment environments
Qualifications
- Software Engineering
- Deep knowledge of one of the programming language they have experience in
- Proficient in OOP and Design Patterns, experience with functional programming would be a plus
- Data modelling experience in Relational Databases
- Ability to design and implement low latency RESTful services
- Product Delivery
- Ability to scope, review and refine user stories for technical completeness and to alleviate dependency risks.
- Well versed in working with agile methodologies which includes phases such as design, development, code review, testing and release management
- Ability to have worked in a CI/CD environment, with hands on experience with Git or any similar source code management tools
- Product Maintenance
- Experience troubleshooting server performance issues such as memory tuning, GC tuning, resource leaks etc
- Continuously refactor applications to ensure high quality design
Job Description:
As a L3 analyst, you will play a key role within the Application Management team, leading services for its customer(s). This service has responsibility for the smooth daily operational running of the Client platform both in the cloud and on-premises. The Client application is business critical and centrally manages data for trading, settlement, risk, client and regulatory reporting systems. As a L3 analyst, you will be responsible for supporting complex infrastructure and application issues raised by L1/L2 support teams, and business analysts. You would also be working on client requests for enhancements, fixes, maintaining custom code, and following the best practices such as Agile, DevOps, etc.
The role is a technical role requiring a good technical knowledge of SQL/PLSQ, Core Java along with good debugging skill while supporting client implementations. You should have basic understanding on Unix system and commands. The ability to troubleshoot issues, assist users and help write specifications is essential. This position also works with product management to improve the software engineering processes and practices associated with continuously building, deploying, and updating software and environments.
- Accountability and primary responsibility/duties:
- A typical day would look like as follows: -
- 40% support issues.
- 40% configuration/development work.
- 20% continuous improvement, automation, CICD, so on.
- Activities would range across the lifecycle from discovery to post-implementation support.
- Understanding client’s requirement, replicate the problem and providing the solution
- Understanding and developing new requirements coming in from BAs (Business Analysts) and customers.
- Update the existing functionality based on client needs.
- Develop changes that cater to enhancing the product and/or fixing production issues
- Prepare product releases of software components. (Java/SQL-PLSQL)
- Contribute in all phases of the development cycle. (development/Deployment/Testing, peer review)
- Create technical document for all changes made.
Required Qualifications/Knowledge/Skills
- Bachelor’s degree in Computer Science or related field
- Strong basics and working experience in following technologies: -
- Core Java.
- SQL / PLSQL coding.
- Object Oriented Programming concepts and data structures.
- Working knowledge on Unix platform
- Working knowledge on XSLT and XML handling
- Basic understanding App & web server working knowledge (JBOSS, WebLogic and WebSphere) and debugging skills.
- Advantageous to have:
- Working understanding on CICD, Dev-ops technologies.
- Queuing technologies including Kafka, MQ, Solace.
- Scripting including Python, Unix, java.
- Hands on knowledge of Dev ops processes and tools Good interpersonal and communication skills.
Brief Overview:
Through your work at Vauld, you will have the opportunity to change money for the 21st century. We’re a leading cryptocurrency platform and are passionate about increasing economic freedom around the world.
We are looking for a Lead Backend Engineer who has hands-on experience working with and leading Product teams and has solved for and built complex backend solutions. You'll be involved with bringing features and products from idea to completion and mentoring an incredibly talented group of peers.
If you are looking for a challenging work environment where you can grow and deepen your technical skills as a backend engineer and architect, we’d love to chat with you!
Key Responsibilities:
- Working with CXO’s, product managers, devops, and frontend engineers to collaboratively own the backend-end layer for Vauld’s application.
- Architect and build highly scalable, secure features keeping the long term vision of the product.
Requirements:
- You have 7 years or more of backend development experience with expertise in designing and implementing high-performance applications.
- Worked with and built high performance products using Node Js/GoLang/ Python and have seen the product evolution cycle from PoC to Production
- You have a deep understanding of design principles and can rightly judge/implement solutions to complex problems
- You are capable of writing high-quality code that conforms to the standards and best practices in a particular language/framework.
- You have experience building a product using a mainstream library or framework.
- You love to own end to end responsibility, starting from defining the problem statement (either yourself or alongside your peers), development (PoC if needed), testing, releasing in staging & then production environment, and finally monitoring.
Preferred:
- Previous work experience in product-based startups
- Experience building for products that have scaled and have seen the product evolution
- Understands the cryptocurrency landscape
Working at Vauld:
You will join a fun and intellectually stimulating work environment. If you’re excited by the idea of making a real impact and joining a team where we pride ourselves on being disruptive and ambitious, a career with Vauld is perfect for you.
We are searching for an organized, ambitious Tech Lead with hands-on experience in .NET and data management methods with MongoDB, SQL.
In this role, you should be able to write functional code with a sharp eye for spotting defects. You should be a team player and an excellent communicator. If you are also passionate about the .NET framework and software design/architecture, we- d like to meet you.
Your goal will be to help internal teams to design, develop and maintain software.
Responsibilities and Duties :
- Writing clean, scalable code using .NET programming languages.
- Working on Architecture and Standards team to validate designs and standards.
- Perform coding, bug verification, unit testing, and integration testing.
- Build high-quality scalable and predictable web applications on the .NET Technology stack and maintain internal and external facing web applications.
- Creating and integrating services and APIs using Web API 2 for various products and applications.
- Working on system architecture and databasing in MySQL and NoSQL.
- Make regular modifications to existing software for error correction, adaptation to new hardware, and improving overall function and performance
- Evaluate new code for reliable architecture, stability, reusability, performance, automation, security, and metrics
- Using JSON to store and transport data.
- Working with other team members and the team lead using Project Management Tools and Version Source Control to create industry-leading technological products.
Skills required:
- 4 - 7 years of experience in MongoDB.
- Candidate should have 2 years of experience as a tech lead.
- Knowledge of .NET development and lifecycle methods in C# Language.
- Experience in making Web API 2 including routes, class components, async methods, parallel programming, authentication, and authorization, etc.
- Experience and hands-on knowledge of data management methods with MongoDB, MySQL, or NoSQL, etc.
- Should have experience and understanding of using JSON.
- Familiarity with working with .NET Framework, JavaScript, HTML. Knowledge of .NET Core is preferred.
- Knowledge and experience working with AWS Cloud and cloud computing techniques is an added advantage, but not a requirement.
- Having a BSc Degree in Computer Science is optional but should have some educational knowledge of computer science
Mandatory technical skill: Core Java, Microservices, Spring, J2ee,
Good analytical and coding skill.
- Build the backend for Android & iOS application and website with Company Dashboard (MIS).
- Integration of user-facing elements developed by front-end developers with server side logic
- Design and implementation of low-latency, high-availability, and performance applications
-Well versed with AWS and Server deployment
- Excellent knowledge of Spring frameworks
- Excellent knowledge of Java, JSP, JavaScript, AJAX, HTML, JSON
- Good knowledge of MySQL
- Knowledge of coding standards and good commenting practices
- Experiences in developing RESTful web services must.
- Ability to understand business requirements and translate them into technical requirements
- Ability to design applications around natural user interfaces
- Experience with REST API connections
- Writing reusable, testable, and efficient code
- Integration of data storage solutions
- Build the backend for application and website with Android App, IOS, Company Dashboard.
- Own software quality and optimize UI
- Understand closely the requirements of the customers and get the features implemented on time
- Creating of strong project timeline along with budgeting and regular reporting
Requirements:
- B. Tech/BE in Computer Science or related subject from a reputed university
- IIT/NIT/IIIT Only
- 2+ years of experience in Technology background and start-up environment.
- Strong proficiency with J2EE with Spring MVC, JPA, DSA, MySQL, Git.
- Basic understanding of front-end technologies, such as HTML5, JQuery and CSS3
- Understanding fundamental design principles behind a scalable application
- Creating database schema that represent and support business processes
- Advanced level (knowledge and experience) of programming languages and methodologies.
- Excellent judgment/decision making, conflict resolution, leadership and motivational skills.
- Should have strong work ethic and positive team attitude
Ideal candidate should be able to guide multiple projects at once in a dynamic and expeditious environment. You will be responsible for developing a world-class product with clean, well-documented code and at the same time ensuring high performance & scalability using proper design principles. You will be responsible for writing server-side web application logic as well as for the integration of the front-end part. Needless to mention you have demonstrated ability towards urgency, ownership, sharing success and competent enough to excel prevailing engineering velocity at Cogoport.
You should be a modern thinker and believer of manager and hierarchy free organisation like Cogoport. The ideal candidate would be assessed basis the defined role fitment. Critical is that you are curious and learner to be able to seek out and evaluate new ideas and bringing them back into the organisation. If you have outstanding programming skills and a great passion for developing beautiful, innovative applications, then let's get in touch!
1. Problem Solving: You should have the rigour and discipline to approach most of the problems and ensure the delivery of quality work ahead of timelines. You are able to look at a problem, define and brainstorm ways to achieve an optimal solution and pick the best engineering approach to bring the software productivity.
2. Architectural Design: You should have in-depth knowledge to design highly scalable architecture. You have strong experience in building products ensuring scalability in tech architecture & design implementation.
3. Database: Should have strong expertise in the database to manipulate data in the software system to minimize data redundancy and maximize the speed of retrieval. Knowledge of MongoDB, MySql, PostgreSQL database is preferred.
4. Algorithm Skills: You should be adept in all algorithm aspects to define an efficient way of solving the problem. You will solve complex problems with algorithms embedded in logical thinking and creating the most efficient and optimum code.
5. Code Quality: Enhancing the code quality by structuring the code & making sure that all the guidelines are followed to ensure enhancing code efficiency & reduction of code failure & bug rectification.
6. Product Inclination: A Software Engineer not only gets involved in coding but should equally understand the product/feature to think & cover all the possible business edge cases coming on the way.








