
Java, Java8, Springboot, Microservices, core java, j2ee, JAVA, Springboot
backend, core java, java8, micro services

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Wissen Technology is now hiring for a Java Developer
Location : Bangalore (The candidate must be based in Bangalore, as an in-person interview is a mandatory part of the selection process)
Notice Period: Immediate to Serving Notice Period & Up to 30 Days max
Skills: Hands-on experience in Core Java, Spring Boot, Microservices, Algorithms, Data Structure and SQL
Note: Bachelor's or Master's degree from a top-tier college or university is must.
Key Responsibilities:
- Design, develop, and test low-latency, high-volume client-facing applications.
- Develop and maintain enterprise-scale, n-tier applications for the investment banking/capital markets domain.
- Implement microservices-based solutions using Spring Boot and other modern frameworks.
- Work extensively with Core Java 5.0 and above, Spring Framework, and CXF
- Optimize applications for multi-threading and high-performance server-side development
- Collaborate with cross-functional teams to design and implement scalable, secure, and efficient solutions
- Work with RDBMS (preferably Sybase) to handle large-scale data processing.
- Develop and maintain applications on Unix/Linux environments
- Utilize enterprise application design patterns to build robust and scalable solutions.
- Troubleshoot and resolve complex technical issues while ensuring application stability and performance.
Required Skills & Experience:
- 1 to 6 years of hands-on experience in Java development
- Strong knowledge of microservices architecture and cloud-based deployment.
- Expertise in Spring Framework, Spring Boot, and CXF
- Experience in developing and optimizing applications for high-volume, multi-threaded environments
- Solid understanding of financial domain applications, sales, and trading platforms
- Proficiency in working with relational databases (Sybase preferred)
- Familiarity with Unix/Linux environments and shell scripting.
- Strong analytical, problem-solving, and communication skills.
- Ability to articulate and present design ideas effectively.
- Education: Bachelor's or Master's degree from a top-tier college or university is must.


Job description
Key Responsibilities
- Design, develop, and maintain serverless applications using AWS services such as Lambda, API Gateway, DynamoDB, and S3.
- Collaborate with front-end developers to integrate user-facing elements with server-side logic.
- Build and maintain RESTful APIs to support web and mobile applications.
- Implement security best practices for AWS services and manage IAM roles and policies.
- Optimize application performance, scalability, and reliability through monitoring and testing.
- Write clean, maintainable, and efficient code following best practices and design patterns.
- Participate in code reviews, providing constructive feedback to peers.
- Troubleshoot and debug applications, identifying performance bottlenecks and areas for improvement.
- Stay updated with emerging technologies and industry trends related to serverless architectures and Python development.
Qualifications
- Bachelors degree in Computer Science, Engineering, or related field, or equivalent experience.
- Proven experience as a Python backend developer, with a strong portfolio of serverless applications.
- Proficiency in AWS services, particularly in serverless architectures (Lambda, API Gateway, DynamoDB, etc.).
- Solid understanding of RESTful API design principles and best practices.
- Familiarity with CI/CD practices and tools (e.g., AWS CodePipeline, Jenkins).
- Experience with containerization technologies (Docker, Kubernetes) is a plus.
- Strong problem-solving skills and the ability to work independently and collaboratively.
- Excellent communication skills, both verbal and written.
Preferred Skills
- Experience with frontend technologies (JavaScript, React, Angular) is a plus.
- Knowledge of data storage solutions (SQL and NoSQL databases).
- AWS certifications (e.g., AWS Certified Developer Associate) are a plus.
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3+ years of Experience in software Design and development and familiar with technologies - Java, Java-J2EE, Spring Boot, Hibernate, Ajax, REST API, Micro services etc.
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Working knowledge of JVM internals
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Working knowledge of any database (MySQL or HSQLDB)
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Working knowledge of No-SQL database (Mongo or Dynamo DB)
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Working experience with messaging (JMS/RabbitMQ)
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R & D on new advanced cloud-based technologies in a test-driven agile development.
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Knowledge in designing and architecting systems with high scalability and performance requirements.
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Ability to understand infrastructure for performance evaluation and reporting of cloud-based services, namely AWS
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knowledge of key AWS services like EC2, S3, Lambda, CloudWatch etc.
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Certification on AWS Fundamendals
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Excellent communication skills
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ability to effectively articulate technical challenges and solutions
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skilled in interfacing with internal and external technical resources
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Good in debugging problems and mentoring teams on technical front
Job Description
Qualifications
MCA or B.E/B.Tech
Experience
3+ years
Core Skill Sets:
1) Core Programming Language: JAVA 8
o Good command on basics/core.
o Sound knowledge of OOPS concept.
o Practical implementation using Collections.
o Problem solving skills using Collections/Java Beans/OOPS concept.
Web Scripting Language: JavaScript, JQuery, HTML 5
Web Programming Language: J2EE
o Knowledge of MVC architecture.
o Able to design a basic web-application using MVC architecture including database usage.
2) Database: Preferably Oracle/MySql
o Able to write sql queries.
o Knowledge of sql joins.
o Knowledge of some basic sql functions.
o Basic idea of stored procedures.
Additional Skill Sets:
XML/JSON/CSV
o Knowledge of reading/writing XML/JSON/CSV documents.
Web-service
o Knowledge of writing web-service (REST Full).
Web Framework
o Struts 2/Spring.
Database Framework
o Hibernate (using Spring JPA would be preferable).
Maven
3) Web/Application Server: Apache/Tomcat/JBoss/Weblogic/Websphere
o Basic experience of working/deployment on J2EE servers.
4) OS Platform: Windows/Linux.
5) Development Tool: Eclipse.
Purpose of the Position:
The employee would be responsible to build core and web-based applications having technical
implementation of XBRL/SDMX concept.
The employee would be responsible to write sql/procedures for the core/web-based application.
The employee would get a deep exposure on working with very good volume of data having such
database architecture capable of handling the same.
The employee would be responsible to build various web-services to be used by language
independent applications.
The employee would be very much responsible to work on standard technology in various parts
of the project.
About IRIS:
IRIS Business Services Limited is one of the first providers of full professional XBRL products and solutions to organizations globally. The company headquartered in Mumbai, India with international offices in United States, Singapore, United Kingdom, and the UAE.
IRIS is a direct member of XBRL International and XBRL US. The Company has over eighteen years of proven expertise in the financial information management space, providing customized technology solutions for data and content management, for the dissemination of information to investors and stock exchanges, and for effective content management to institutional clients.
Over the last seven years, IRIS has been very closely involved in the XBRL space, in taxonomy creation, software solutions and in the conversion of structured and unstructured data into XBRL for SEC filing in the US. IRIS has multidisciplinary skills in XBRL as well as in technology. Taxonomy experts, software engineers, business analysts and accountants come together to provide a complete range of products and services across the XBRL supply chain.
For more information, please visit http://www.irisbusiness.com
• Hands on experience in open source Technologies like java,j2ee, spring boot,spring mvc,mysql,jasper etc.
• Expertise in documentations like FRS,SRS,HLD,LLD, Traceability Matrix etc.
• Strong experience in application of UML, Design Patterns in design of solutions
• Strong Database skills including MySql etc.
• Must involved in at least one complete SDLC of a large size project
• Conversant with the latest technological developments including SOA and Agile
• Conversant with platforms, tools and frameworks used in application development
• Experience on the use of software development best practices, tools and technologies.
• Experience to Identify performance, reliability, security & integration bottlenecks and suggest recommendations.
• Expertise in REST API integration
Our client is looking out for an Associate Architect who has strong experience in to Technology
You will be involving in design, coding &scaling the product.
Collaborate with cross functional teams to solve complex problems.
You will be designing large scale distributed system.
Requirements:
8+ years of hands-on experience in developing, designing & scaling complex systems
Programming experience in Java, spring, Hibernate and MongoDb, micro services
- The Architect/ Lead Backend Engineer will handle the digital experience from inception to go-live model.
- The role holder is expected to create a vision and roadmap for the digital experience to provide best in class customer experience for each of the product solutions handled. The role holder will play a critical role in leading the innovation and growth of our front end web and mobile platforms.
- Must be from Good Companies and have been working on high Scale of Traffic
- Proficiency in engineering practices and writing high quality code, with expertise in either one of Java or Groovy or Go.
- 3+ years of experience building microservices.
- Strong experience in architecting and building distributed systems, scalability, and availability
- Strong knowledge of data structures, algorithms, and designing for performance
- Strong knowledge of cloud technologies like AWS/Google Cloud/Azure
- Good understanding of RxJava or Actors framework
- Proficient with RDBMS
- Strong knowledge on data stores, database design, data modelling and SQL queries
- Extensive experience building and owning large- scale distributed backend systems
- Experience working with three or more of : Unix/Linux environments, Distributed and parallel systems, Workflow automation, CI/CD Platform development, Cloud platforms development e.g. AWS/GCP, Kubernetes/Container platforms based development
Designing and implementing high quality software project in JAVA, SQL, J2EE and other java technologies
Software prototype
System architecture
Software design documentation
Test plan and test cases
Technical documentation.
Deep expertise and hands on experience in Core java
∙ Hands-on experience with at least 2 years in Spring, Hibernate & Restful web services.
∙ Hands-on experience with at least 3 years in GUI development using Angular/React
, HTML & JavaScript. Added advantage if worked on Angular 5 and above, NodeJS, Bootstrap, jQuery.
∙ Clear understanding of Software Development life cycle and process Oriented. Would be great if worked on Agile or Continuous Delivery (CD) based projects before.
∙ Good fundamentals in Core Programming, JDBC, Object Oriented design & Design patterns
∙ Should have exposure to Oracle SQL. Any other DB apart from Oracle is also fine, provided the fundamentals of RDBMS are clear. Good to have experience in writing Sqls, stored procedures and functions.
∙ Experience in creating & executing unit tests using test driven approach with JUnit or any other equivalent.


