
About Wissen Technology
Wissen Technology, established in 2015 and part of the Wissen Group (founded in 2000), is a specialized technology consulting company. We pride ourselves on delivering high-quality solutions for global organizations across Banking & Finance, Telecom, and Healthcare domains.
For more details:
Website: www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: Wissen Technology
Role: Java Backend Developer with AWS
Key Responsibilities
● Design & Development: Build robust, scalable, and maintainable backend services using Java 17+ and the Spring Boot ecosystem.
● API Design: Develop and document RESTful for consumption by web and mobile frontends.
● Database Management: Optimize complex queries and design schemas for relational (PostgreSQL, MySQL) and/or NoSQL (MongoDB, DynamoDB) databases.
● Microservices Architecture: Contribute to the migration or maintenance of microservices, ensuring high availability and low latency.
● Code Quality: Perform thorough code reviews and write comprehensive unit, integration, and functional tests (JUnit, Mockito).
● Cloud & DevOps: Deploy and manage applications in AWS using Docker and Kubernetes.
● Collaboration: Work closely with Frontend Developers, Product Managers to translate business requirements into technical specifications.
Required Technical Skills
● Java Mastery: Deep understanding of Core Java, Multithreading, and Stream API.
● Frameworks: Extensive experience with Spring Boot, Spring Security, and Spring Data JPA/Hibernate.
● Cloud Experience: Proficiency with cloud-native services (e.g., AWS Lambda, S3, RDS, or SQS).
● Messaging: Experience with message brokers like Apache Kafka for asynchronous processing.
● CI/CD: Hands-on experience with Jenkins, GitLab CI, or GitHub Actions.
● Version Control: Expert-level knowledge of Git and branching strategies.
Qualifications & Soft Skills
● Experience: 5+ years of professional experience in backend development.
● Problem Solving: Ability to debug complex production issues and performance bottlenecks.
● Communication: Excellent verbal and written communication skills—vital for a remote/hybrid contractor setup.
● Adaptability: Proven ability to quickly learn new codebases and business domains.

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.
Connect with the team
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Job Title : Senior Software Engineer – Backend
Experience Required : 6 to 12 Years
Location : Bengaluru (Hybrid – 3 Days Work From Office)
Number of Openings : 2
Work Hours : 11:00 AM – 8:00 PM IST
Notice Period : 30 Days Preferred
Work Location : SmartWorks The Cube, Karle Town SEZ, Building No. 5, Nagavara, Bangalore – 560045
Note : Face-to-face interview in Bangalore is mandatory during the second round.
Role Overview :
We are looking for an experienced Senior Backend Developer to join our growing team. This is a hands-on role focused on building cloud-based, scalable applications in the mortgage finance domain.
Key Responsibilities :
- Design, develop, and maintain backend components for cloud-based web applications.
- Contribute to architectural decisions involving microservices and distributed systems.
- Work extensively with Node.js and RESTful APIs.
- Implement scalable solutions using AWS services (e.g., Lambda, SQS, SNS, RDS).
- Utilize both relational and NoSQL databases effectively.
- Collaborate with cross-functional teams to deliver robust and maintainable code.
- Participate in agile development practices and deliver rapid iterations based on feedback.
- Take ownership of system performance, scalability, and reliability.
Core Requirements :
- 5+ Years of total experience in backend development.
- Minimum 3 Years of experience in building scalable microservices or delivering large-scale products.
- Strong expertise in Node.js and REST APIs.
- Solid experience with RDBMS, SQL, and data modeling.
- Good understanding of distributed systems, scalability, and availability.
- Familiarity with AWS infrastructure and services.
- Development experience in Python and/or Java is a plus.
Preferred Skills :
- Experience with frontend frameworks like React.js or AngularJS.
- Working knowledge of Docker and containerized applications.
Interview Process :
- Round 1 : Online technical assessment (1 hour)
- Round 2 : Virtual technical interview
- Round 3 : In-person interview at the Bangalore office (2 hours – mandatory)
Strong Python Developer profile with robust AWS exposure
2
Mandatory (Experience 1): Must have 7+ years of hands-on software development experience with at least the recent 4+ years in Python and strong hands on knowledge of AWS
3
Mandatory (Tech skill 1): Must have strong working knowledge of Python.
4
Mandatory (Tech skill 2): Must have good understanding of AWS services including EC2, S3, Lambda, IAM, CloudWatch, and ECS or ECR
5
Mandatory (Tech skill 3): Must be able to write and understand REST APIs
6
Mandatory (Tech skill 4): Experience designing and architecting scalable backend applications/services on AWS, including making decisions around application architecture, APIs, databases, and AWS services
7
Mandatory (Tech skill 5): Must be comfortable with version control tools such as Git, GitHub, Bitbucket, or GitLab
8
Mandatory (Tech skill 6): Must have good understanding of databases such as PostgreSQL, MySQL, or DynamoDB
9
Mandatory (Tech skill 7): Must have familiarity with Linux commands and shell scripting
10
Mandatory (Skill 1): Must have good debugging and problem-solving skills, with the ability to read existing code and make changes independently with light guidance
11
Mandatory (Skill 2): Must have strong communication skills
12
Preferred (Tech skill 2): Experience with AWS CodeCommit, and exposure to AWS CodeBuild, CodeDeploy, CodePipeline, GitHub Actions, Jenkins, or similar CI/CD tools
13
Preferred (Tech skill 3): Basic understanding of CI/CD pipelines
14
Preferred (Tech skill 4): Experience with Docker or container-based applications
15
Preferred (Tech skill 5): Basic knowledge of infrastructure-as-code tools such as Terraform or AWS CloudFormation
Job responsibility The Lead Developer contributes, to create a customer’s solution, in the building phase of the software development lifecycle. The Software Engineer is responsible for performing the detailed design of application and technical architecture components and classes in accordance to the specification provided by the Solution Architect, for coding of SW components, and for the early testing phases (component testing), and system testing support
Should have handled and leaded a team of front end and back developer and deliver projects on time.Hands on experience in Java, Python, scripting
- Design, implement, deploy and support web-based applications and web services using server technologies stacks that include Java, MySQL
- Experience in Java/J2EE using web frameworks Play or Spring boot, REST API Development and ORM (JPA, Hibernate eBean etc.)
- In depth knowledge of Design patterns and Data structures
- Databases - MySQL, Oracle, SQL
- Solid understanding of concepts like Web Services, SOA, REST APIs, Message Queue, Caching, Distributed/Scalable Architecture
- Secure application development best practices, such as OWASP
- Document and maintain all design documents and involve in review process.
- Experienced problem solving and debugging skills.
- Good verbal and written communication and interpersonal skills
- Experience in Agile methodology is added advantage
- Knowledge of Cloud Knowledge /Azure
- Must know about Unix knowledge
- experience in Elastic search
Required Qualifications:
- 5+ years of professional software development experience.
- Post-secondary degree in computer science, software engineering or related discipline, or equivalent working experience.
- Development of distributed applications with Microsoft technologies: C# .NET/Core, SQL Server, Entity Framework.
- Deep expertise with microservices architectures and design patterns.
- Cloud Native AWS experience with services such as Lambda, SQS, RDS/Aurora, S3, Lex, and Polly.
- Mastery of both Windows and Linux environments and their use in the development and management of complex distributed systems architectures.
- Git source code repository and continuous integration tools.
Requirements
• Extensive and expert programming experience in at least one general programming language (e. g.
Java, C, C++) & tech stack to write maintainable, scalable, unit-tested code.
• Experience with multi-threading and concurrency programming.
• Extensive experience in object oriented design skills, knowledge of design patterns, and a huge passion
and ability to design intuitive modules and class-level interfaces.
• Excellent coding skills - should be able to convert design into code fluently.
• Knowledge of Test Driven Development.
• Good understanding of databases (e. g. MySQL) and NoSQL (e. g. HBase, Elasticsearch, Aerospike etc).
• Strong desire to solve complex and interesting real world problems.
• Experience with full life cycle development in any programming language on a Linux platform.
• Go-getter attitude that reflects in energy and intent behind assigned tasks.
• Worked in a startup-like environment with high levels of ownership and commitment.
• BTech, MTech or Ph. D. in Computer Science or related technical discipline (or equivalent).
• Experience in building highly scalable business applications, which involve implementing large complex
business flows and dealing with huge amounts of data.
• 3+ years of experience in the art of writing code and solving problems on a large scale.
• Open communicator who shares thoughts and opinions frequently, listens intently, and takes
constructive feedback.
- Developing and maintaining all server-side network components.
- Ensuring optimal performance of the central database and responsiveness to front-end requests.
- 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.
- Proficiency in Java, with a good understanding of its ecosystems
- Sound knowledge of https://www.simplilearn.com/tutorials/java-tutorial/oops-interview-questions" target="_blank">Object-Oriented Programming (OOP) Patterns and Concepts
- Familiarity with different design and architectural patterns
- Skill for writing reusable Java libraries
- Knowhow of Java concurrency patterns
- Basic Understanding of the concepts of MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services
- Experience in working with popular web application frameworks like Play and Spark
- Relevant Knowledge of Java GUI frameworks like Swing, SWT, AWT according to project requirements
- Ability to write clean, readable Java code
- Basic knowhow of class loading mechanism in Java
- Experience in handling external and embedded databases
- Understanding basic design principles behind a scalable application
- Skilled at creating database schemas that characterize and support business processes
- Basic knowledge of https://www.simplilearn.com/jvm-and-the-implications-of-sandbox-model-rar41-article" target="_blank">JVM (Java Virtual Machine), its drawbacks, weaknesses, and workarounds
- Implementing automated testing platforms and unit tests
- In-depth knowledge of code versioning tools, for instance, Git
- Understanding of building tools like Ant, Maven, Gradle, etc
- Expertise in continuous integration
Java Elastic Search
- Java Microservices ELK stack(Elasticsearch, Logstash, Kibana, Beats, X-Pack, APM),
- Build Custom Reports
Java + NodeJS
- Java with Node.js- Microservices Development,
- Using graphql with node.js,
- Backend development with Node.JS
Java Microservices
- Working experience in Java and spring boot (microservices)
- Strong understanding of OOPs concepts
- Proficient in API design and development using RESTful services
- Knowledge and understanding of design principles behind building a scalable application
- Source code management using git
Job Description:
We are looking to hire an experienced angularJS developer to join our dynamic team. As a lead developer, you will be responsible for creating a top-level coding base using Angular best practices. Your role will require you to implement an exciting and streamlined user experience in the form of a Java-based desktop and mobile web app.
Responsibilities:
- Designing and developing user interfaces using angularJS best practices.
- Adapting interface for modern internet applications using the latest front-end technologies.
- Writing JavaScript, CSS, and HTML.
- Developing product analysis tasks.
- Making complex technical and design decisions for AngularJS projects.
- Developing application codes and unit tests in AngularJS, Java Technologies, and Rest Web Services.
- Conducting performance tests.
- Consulting with the design team.
- Ensuring high performance of applications and providing support.
Requirements:
- Bachelor’s degree in computer science, computer engineering, or similar.
- Previous work experience as an AngularJS developer.
- Proficient in CSS, HTML, and writing cross-browser compatible code.
- Experience using JavaScript building tools like Gulp or Grunt.
- Knowledge of JavaScript MV-VM/MVC frameworks including AngluarJS.
- Excellent project management skills.
- Proven experience implementing back-end JavaScript applications.
- Excellent communication skills.
- Critical thinker and good problem-solver.










