
Java Developer – Job Description Wissen Technology is now hiring for 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 consulting. Required Skills: • Exp. - 4 to 10 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.

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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Job Description: Java AWS Developer
Location: Bengaluru, Karnataka
Experience: 4-7 Years
Type: Full-Time
Key Responsibilities
- Design, develop, and maintain robust, scalable Java-based applications.
- Architect, implement, and manage cloud infrastructure and services on AWS.
- Build and optimize RESTful APIs, microservices, and event-driven architectures.
- Ensure seamless integration of applications with AWS services like EC2, S3, Lambda, RDS, DynamoDB, and others.
- Write clean, efficient, and testable code following best practices and coding standards.
- Collaborate with cross-functional teams (product managers, QA, DevOps) to deliver high-quality solutions.
- Troubleshoot and resolve performance, scalability, and security issues in applications and cloud infrastructure.
- Implement CI/CD pipelines using tools like Jenkins, AWS CodePipeline, or similar.
- Stay updated with emerging trends in Java and AWS technologies to drive continuous improvement.
Required Skills and Qualifications
- Experience: 4-7 years in software development with a strong focus on Java and AWS.
- Java Expertise:
- Proficient in Core Java, J2EE, Spring Framework (Spring Boot, Spring MVC, Spring Data).
- Experience with Hibernate/JPA for ORM and database interactions.
- Strong understanding of RESTful API design and microservices architecture.
- Familiarity with build tools (Maven/Gradle) and unit testing frameworks (JUnit, Mockito).
- AWS Expertise:
- Hands-on experience with AWS services such as EC2, S3, Lambda, RDS, DynamoDB, SNS, SQS, and API Gateway.
- Proficiency in designing and deploying serverless applications and event-driven architectures.
- Knowledge of AWS security best practices (IAM, KMS, VPC, Security Groups).
- Experience with infrastructure-as-code tools like AWS CloudFormation or Terraform.
- Database Skills: Experience with SQL (MySQL, PostgreSQL) and NoSQL databases (DynamoDB, MongoDB).
- DevOps Knowledge: Familiarity with CI/CD pipelines, Docker, Kubernetes, and monitoring tools (CloudWatch, Prometheus).
We are in search of a proficient Java Principal Engineer with a minimum of 10 years' experience in designing and developing Java applications. The ideal candidate will demonstrate a deep understanding of Java technologies, including Java EE, Spring Framework, and Hibernate. Proficiency in database technologies such as MySQL, Oracle, or PostgreSQL is essential, along with a proven track record of delivering high-quality, scalable, and efficient Java solutions.
We are looking for you!
You are a team player, get-it-done person, intellectually curious, customer focused, self-motivated, responsible individual who can work under pressure with a positive attitude. You have the zeal to think differently, understand that career is a journey and make the choices right. You must have experience in creating visually compelling designs that effectively communicate our message and engage our target audience. Ideal candidates would be someone who is creative, proactive, go getter and motivated to look for ways to add value to job accomplishments.
As an ideal candidate for the Java Lead position, you bring a wealth of experience and expertise in Java development, combined with strong leadership qualities. Your proven track record showcases your ability to lead and mentor teams to deliver high-quality, enterprise-grade applications.
Your technical proficiency and commitment to excellence make you a valuable asset in driving innovation and success within our development projects. You possess a team-oriented mindset and a "get-it-done" attitude, inspiring your team members to excel and collaborate effectively.
You have a proven ability to lead mid to large size teams, emphasizing a quality-first approach and ensuring that projects are delivered on time and within scope. As a Java Lead, you are responsible for overseeing project planning, implementing best practices, and driving technical solutions that align with business objectives.
You collaborate closely with development managers, architects, and cross-functional teams to design scalable and robust Java applications.
Your proactive nature and methodical approach enable you to identify areas for improvement, mentor team members, and foster a culture of continuous learning and growth.
Your leadership style, technical acumen, and dedication to delivering excellence make you an ideal candidate to lead our Java development initiatives and contribute significantly to the success and innovation of our organization.
What You Will Do:
- Design and development of RESTful Web Services.
- Hands on database experience (Oracle / PostgreSQL / MySQL /SQL Server).
- Hands on experience with developing web applications leveraging Spring Framework.
- Hands on experience with developing microservices leveraging Spring Boot.
- Experience with cloud platforms (e.g., AWS, Azure) and containerization technologies.
- Continuous Integration tools (Jenkins & Git Lab), CICD Tools.
- Strong believer and follower of agile methodologies with an emphasis on Quality & Standards based development.
- Architect, design, and implement complex software systems using [Specify relevant technologies, e.g., Java, Python, Node.js.
What we need?
- BTech computer science or equivalent
- Minimum 10+ years of relevant experience in Java/J2EE technologies
- Experience in building back in API using Spring Boot Framework, Spring DI, Spring AOP
- Real time messaging integration using Kafka or similar framework
- Experience in at least one database: Oracle, SQL server or PostgreSQL
- Previous experience managing and leading high-performing software engineering teams.
Why join us?
- Work with a passionate and innovative team in a fast-paced, growth-oriented environment.
- Gain hands-on experience in content marketing with exposure to real-world projects.
- Opportunity to learn from experienced professionals and enhance your marketing skills.
- Contribute to exciting initiatives and make an impact from day one.
- Competitive stipend and potential for growth within the company.
- Recognized for excellence in data and AI solutions with industry awards and accolades.
We are seeking extremely smart programmers who are gung ho about building large scale systems that are going to have a big impact on millions of customers.
Responsibilities:
- Design and develop products by working closely with business team.
- Gain experience with hands on coding and independent ownership of software components.
- Build performant, scalable, enterprise ready back end architectures that can support millions of users in parallel.
- Follow strong engineering best practices and champion their adoption.
Requirements:
- 2+ years’ experience in software product development and delivery.
- Bachelors or Masters degree in engineering from a reputed institute(preferably IITs, NITs, or other top engineering institutes).
- Strong grasp of CS fundamentals, algorithms and excellent problem solving abilities.
- All experience should be from good product development or e-commerce background.
- Must have shown good stability in all your previous associations.
- Have strong backend knowledge and cloud development exposure.
- Expert at Java, Spring boot, Hibernate, REST API development.
- Worked with at least 1 RDBMS (Mysql preferred). NoSql is a plus.
- Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
- Writing high quality code which is made better by unit tests and integration tests is how you work.
- Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
- Knowledge of test driven development and AWS tech stack will be a good plus.

- Deep understanding of Django and DRF
- Write effective, scalable code
- Develop back-end components to improve responsiveness and overall performance
- Integrate user-facing elements into applications
- Test and debug programs
- Improve functionality of existing systems
- Implement security and data protection solutions
- Assess and prioritize feature requests
- Coordinate with internal teams to understand user requirements and provide technical solutions


Roles and Responsibilities
• Code, develop, design and architect features related to the existing application. We
expect you to own modules end to end and take pride in the work products you
ship.
• Lead from the front, when it comes to delivering high quality work products. Serve
as a mentor to the team members
• Create and define performance metrics. Ideate, innovate and hack through the
existing systems to improve performance.
• Perform code reviews, set coding practices and guidelines within the team.
• Make sense of the product specs, be nimble in getting the issues resolved. Be a
thought leader.
Critical Functional Skills:
• Solid understanding and knowledge of Java/C/C++. You should understand the
concepts of multithreading, I/O, messaging, instrumentation etc and their
implementation in Java/Any other Object-Oriented Language.
• Proficiency in the implementation of algorithms and the use of advanced data
structures to solve problems in computing. A solid foundation in the principles of
computer science is desired.
• Ability to write clean, modular, and loosely coupled code by the use of design
patterns.
• He/She should be able to break down and architect complex software systems. For
example- Build
• Cars Availability Engine for Ola.
• Strong decision-making ability
• Deep expertise in at least one programming language & tech stack.
• Substantial experience in building complex and scalable solutions.
• Strong object-oriented design skills, ability to apply design patterns, and an uncanny
ability to design intuitive module and class-level interfaces
• The ability to do deep problem solving and build elegant, maintainable solutions to
complex problems.
• Experience leading multi-engineer projects and mentoring junior engineers
• Experience with full life cycle development in any programming language on a Linux
platform
• Comprehensive operational experience including, optimizations, deployments and
tuning servers like apache/mysql/tomcat/solr
• Prior experience in working with Agile software methodologies (XP, Scrum), TDD,
and Continuous Integration(CI/CD) a plus.
• Experience in building data-driven web application design and development is a plus
• Expert level experience in building a scalable, large and complex business
application.
Experience Required:
• Typically with an experience of 5+ years of development experience in a product
firm.
• Must have lead, designed, architected and delivered at least 1 project in his previous
assignments independently.
Minimum Qualifications Required:
• Btech/MS from a reputed Institute
• Deep expertise with any or combination programming languages: Java, C++, C#,
Ruby, Scala,
• Go any object-oriented high-level proprietary or open-source language with strong
programming constructs. We are not skill-specific but go by strength in
competencies
• Machine coding
• Single machine in-memory program
• Need a working code with functionality
• Readable and well-designed code with right abstractions, separation of concerns,
• right design patterns
• Performant code with concurrency and efficient data structures
• Write test cases covering the happy path and edge cases
• Problem Solving
• Choose the right combination of data structures to solve the problem
• Identify most edge cases for the problem
• Identify opportunities of parallelism: utilizes multi-core solutions where applicable
• Design & Architecture
• Distributed systems design and system interaction
• Identify API signatures
• LLD with class design
• Solve for performance & availability
Responsibilities
- Work with the architect in identifying modules, interfaces, functionality to be developed
- Participate in the entire application lifecycle, focusing on coding and debugging
- Write clean code to develop functional web application, addressing technical and design requirements
- Understand and implement heuristic algorithms as necessary
- Troubleshoot and debug applications
- Create and maintain upto date documentation
- Collaborate with Front-end developers to integrate user-facing elements with server side logic
- Provide training and support to internal teams
- Build reusable code and libraries for future use
- Liaise with developers, architects, designers and system administrators to identify and incorporate new features
Requirements
- Proven work experience in Java as a Back-end developer
- In-depth understanding of the entire web development process (design, development and deployment)
- Hands on experience with programming languages like https://resources.workable.com/back-end-developer-job-description" target="_blank">Java and Python
- Hands on experience in relational and non relational databases
- Working knowledge of CMS framework
- Familiarity with front-end languages (e.g. HTML, JavaScript and CSS)
- Excellent analytical and time management skills
- Teamwork skills with a problem-solving attitude
- BE/ MS degree in Computer Science or relevant field


Immediate Interviewing for Developer for Rajahmundry Location.
Job Description:
1+ Years Experience on software development on any software language.
Experience with software design and development in a test-driven environment
Knowledge of coding languages (e.g. C++, Java, JavaScript) and frameworks/systems (e.g. AngularJS, Git)
Ability to learn new languages and technologies
Problem-solving aptitude
Excellent communication and presentation skills
Job Description:
We are looking for a Java developer responsible for developing Web applications using Core Java and JDBC. Your primary responsibility will be to quickly learn to design and develop applications, and to coordinate with the rest of the team working on different layers of the infrastructure. Thus, a commitment to collaborative problem solving, sophisticated design, and product quality is essential.
- Excellent knowledge of object-oriented programming.
- Well-versed in Core Java (1.7 and above preferable, with knowledge of new features like Executor framework, Generics, etc.).
- Excellent experience of collections, HashMap, concurrency packages, Exception Handling and Array List, sorting algorithm.
- Strong knowledge and understanding of real-time, low-latency multi-threaded server-side java code.
- Familiar with various design and architectural patterns.
- Skill for writing reusable Java libraries.
- Knack for writing clean, readable Java code.
- Experience with both external and embedded databases.
- Understanding fundamental design principles behind a scalable application.
- Basic understanding of the class loading mechanism in Java.
- Creating database schemas that represent and support business processes.
- Should possess good communication skills (both oral and written).
- Must be completely hands-on and an individual contributor and a self-starter.
- Must be able to complete assignments (suitable to his/her experience) with minimal assistance.
- Very good at Analytical and Logical skills.
- Solid understanding of the web development lifecycle.
- Ability to learn quickly and deliver software on time.
If you are looking forward for this opportunity, kindly apply with us with below asked details:
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