
Skills Required:
- 4+ years of technical experience in a developer role
- Strong proficiency with Core Java
- Database experience preferably with DB2, Sybase, or Oracle
- Complete SDLC process and Agile Methodology (Scrum)
- Strong oral and written communication skills
- Excellent interpersonal skills and professional approach
- Bachelor’s degree in Computer Science, MIS, or other technology/engineering discipline
Skill Desired:
-Strong proficiency with Scala on Spark
- Previous experience in front office and back office reports
- Strong understanding Order Life Cycle management from Equities or Listed derivatives perspective
- Previous experience in Trade Surveillance or working with data from the order lifecycle
- Good to have knowledge on Hadoop Technologies
- High quality software architecture and design methodologies and patterns
- Work experience as level-3 support for applications
- Layered Architecture, Component based Architecture
- XML-based technologies
- Unix OS, Scripting, Python or Perl
- Experience in development on other application types (Web applications, batch, or streaming)

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 : Java Backend Developer
Experience : 3 – 8 Years
Location : Pune (Onsite) (Pune candidates Only)
Notice Period : Immediate to 15 Days (or serving NP whose LWD is near)
About the Role :
We are seeking an experienced Java Backend Developer with strong hands-on skills in backend microservices development, API design, cloud platforms, observability, and CI/CD.
The ideal candidate will contribute to building scalable, secure, and reliable applications while working closely with cross-functional teams.
Mandatory Skills : Java 8 / Java 17, Spring Boot 3.x, REST APIs, Hibernate / JPA, MySQL, MongoDB, Prometheus / Grafana / Spring Actuators, AWS, Docker, Jenkins / GitHub Actions, GitHub, Windows 7 / Linux.
Key Responsibilities :
- Design, develop, and maintain backend microservices and REST APIs
- Implement data persistence using relational and NoSQL databases
- Ensure performance, scalability, and security of backend systems
- Integrate observability and monitoring tools for production environments
- Work within CI/CD pipelines and containerized deployments
- Collaborate with DevOps, QA, and product teams for feature delivery
- Troubleshoot, optimize, and improve existing modules and services
Mandatory Skills :
- Languages & Frameworks : Java 8, Java 17, Spring Boot 3.x, REST APIs, Hibernate, JPA
- Databases : MySQL, MongoDB
- Observability : Prometheus, Grafana, Spring Actuators
- Cloud Technologies : AWS
- Containerization Tools : Docker
- CI/CD Tools : Jenkins, GitHub Actions
- Version Control : GitHub
- Operating Systems : Windows 7, Linux
Nice to Have :
- Strong analytical and debugging abilities
- Experience working in Agile/Scrum environments
- Good communication and collaborative skills
JOB DESCRIPTION-
Exp - 5 to 8yrs
Job Summary
We are looking for a highly skilled and motivated Senior Software Engineer with strong expertise in Java (primary) and working knowledge of Python. The ideal candidate will be responsible for designing, developing, and maintaining scalable backend systems, while contributing to high-quality software delivery across the full development lifecycle.
Key Responsibilities
- Design, develop, and maintain robust, scalable, and high-performance applications using Java (Spring Boot / Microservices architecture)
- Develop reusable components and APIs with a focus on performance, security, and scalability
- Leverage Python for automation, scripting, data processing, or ML-related use cases (as applicable)
- Collaborate with cross-functional teams including Product, QA, DevOps, and Architecture
- Participate in system design discussions and contribute to technical decision-making
- Write clean, efficient, and well-documented code following coding standards and best practices
- Optimize applications for maximum speed and scalability
- Troubleshoot and debug complex production issues
- Contribute to CI/CD pipelines and DevOps practices
- Mentor junior engineers and perform code reviews
Required Skills & Qualifications
Technical Skills
- Strong hands-on experience in Core Java, Spring Boot, and Microservices architecture
- Solid understanding of RESTful APIs, multithreading, concurrency, and JVM performance tuning
- Practical experience with Python (automation, scripting, or backend development)
- Experience with databases: SQL (MySQL, PostgreSQL) and/or NoSQL (MongoDB, Cassandra)
- Familiarity with cloud platforms (AWS, Azure, or GCP)
- Strong knowledge of data structures, algorithms, and system design
- Experience with message brokers (Kafka, RabbitMQ)
- Exposure to containerization & orchestration (Docker, Kubernetes)
- Experience with version control systems (Git)
Preferred Skills
- Experience in distributed systems and event-driven architectures
- Knowledge of Python frameworks (Flask, FastAPI, Django)
- Exposure to big data technologies (Spark, Hadoop) or ML workflows
- Experience with CI/CD tools (Jenkins, GitHub Actions, etc.)
- Familiarity with observability tools (Prometheus, Grafana, ELK stack)
Soft Skills
- Strong problem-solving and analytical skills
- Excellent communication and collaboration abilities
- Ability to work in a fast-paced agile environment
- Proactive ownership and accountability
Hi All,
Job Description:
As a Java Developer, you will be responsible for developing and maintaining high performance, scalable, and secure applications. We are seeking a skilled and motivated Java Developer with experience in the Spring Framework to join our dynamic team. This is a remote/work-from-home position, offering you the flexibility to work from anywhere.
Location : Remote / WFH
Salary : Good Hike on Current
Key Responsibilities:
- Design, develop, and maintain Java-based applications using the Spring Framework.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Write clean, maintainable, and efficient code.
- Ensure the performance, quality, and responsiveness of applications.
- Troubleshoot and debug issues to optimize application performance.
- Participate in code reviews to maintain high coding standards and best practices.
- Work with RESTful APIs and integrate third-party services.
- Contribute to all phases of the software development lifecycle, including requirements
- Gathering, design, implementation, testing, and deployment.
Key Requirements:
- 2 to 5+ years of experience in Java development.
- Strong experience with the Spring Framework (Spring Boot, Spring MVC, Spring Data, etc.).
- Proficiency in building RESTful APIs and web services.
- Solid understanding of object-oriented programming and design patterns.
- Experience with relational databases like MySQL, PostgreSQL, or Oracle.
- Familiarity with version control systems, particularly Git.
- Knowledge of front-end technologies such as HTML, CSS, and JavaScript is a plus.
- Ability to work independently and as part of a remote team.
- Strong problem-solving skills and attention to detail.
- Excellent communication and collaboration skills.
Preferred Qualifications:
- Experience with cloud platforms like AWS, Azure, or Google Cloud.
- Familiarity with microservices architecture.
- Knowledge of containerization tools such as Docker.
- Understanding of Agile/Scrum methodologies.
Benefits:
- Work-from-home/remote opportunities.
- Opportunities for professional growth and development.
- Collaborative and inclusive work environment.
● Proficiency in RESTful API, microservices architecture and containerization technologies
(Docker)
● Strong programming, problem solving skills, data structures and algorithms.
● Solid foundation in Computer Science, distributed systems and web technologies.
● Proficient in one or more Java based backend programming frameworks - Ex - Java spring,
Java spring boot, Java vert.x
● Knowledge of one or more SQL (mySQL, postgres) and noSQL data stores (mongDB or
Cassandra)
● Knowledge of observability systems
● Knowledge of managed cloud services like AWS / Azure / GCP
● Experience with distributed messaging technologies like RabbitMQ, Google PubSub etc.
· Strong knowledge of core java & spring boot
· Hands-on experience on payment switch integration
· Good knowledge of ISO8583 and EMV Data.
· Hands-on experience on any database like MySQL, oracle...etc.
· Should be strong in creating/ defining Swagger specs for REST APIs, understand REST principles, Guidelines.
· In depth knowledge of Card Scheme Specifications (VISA, MasterCard, Rupay and AMEX), Card
· Well versed with payment standards and ISO8583 and EMV data (mandatory),
· Hands on experience with Switch payment integration
· Resolve technical issues for designers and developers during project lifecycle
· Excellent problem solving/troubleshooting skills on Java/J2EE technologies
· Result oriented and a versatile engineer who is expert in providing solutions, creating architecture and designs.
· Excellent communication (written and verbal) and interpersonal skills
Payment card industry preferred
Essential Requirements:
- 5+ years of Software development experience
- Hands on development experience using Java technology stack with focus on architecture and design.
- Hands-on in Java Programming, J2EE, Spring or SpringBoot, Hibernate, RestAPI, Data Structures, Design Patterns, Oracle Database, PL/SQL
- Experience in application servers with prime focus on Tomcat.
- Experience in messaging systems such as RabbitMQ.
- Experience working in Linux/Unix environments. Must be hands on with Object Oriented concepts along with passion for design patterns and applicability.
- Relevant experience in Java frameworks like Spring Microservices, Spring-Boot, Hibernate, JPA etc.
- Understanding of developer testing practices and the differences between unit, functional, and system tests,
- Should have working experience in a CI/CD environment where build & test is automated.
- Should have working experience in tools like Maven, Jenkins, Bamboo etc.
- Should have used testing Frameworks such as JUnit, Selenium
- Ability to quickly learn and apply new concepts or principles
- Ability to work effectively as part of global team
- Experience working in an agile environment.
- Experience in Azure and AWS Development and Deployment, Active Directory, Containerization.
Frameworks - Springboot, Hibernate, Junit
REST / SOAP Web Services Implementation
Micro-services and Data Structures experience
SQL and exposure to Oracle or MySql or SQL Server or any standard RDBMS
Scrum or SAFe or other Agile delivery ways
Excellent communication skills (verbal and written), good interpersonal skills, ability to
understand/expand requirements & technical specs
We are looking for Product Developers-Java Technology with hands-on experience in Core java and socket programming with the flair for working on cutting-edge solutions.
Responsibilities and duties:
- Responsible for the development and unit testing of various modules in JAVA and other related technologies.
- Need to do requirement understanding, preparing initial concept and possible architecture design.
- Responsible for feasibility analysis and POC development.
- Ability to understand the product architecture and end-to-end system flow.
- Ability to relate and analyze tasks as per overall product architecture and philosophy.
- Work in Agile SCRUM development model and be able to plan, estimate, execute and deliver quality work as per committed timeline.
- Ability to continuously analyze and contribute to lean processes, quality improvements, product growth, and productivity improvements within the team.
Required Skills:
- JAVA - Core JAVA Concepts, Socket Communication, Multithreading, Exception Handling, Collections Framework, Reflections, I/O, XML, HTML, JSON, YML
- Database version management tools like Liquibase etc.
- Version control system like GIT. Hands-on experience with strong knowledge of branching, merging,
- Build systems like Maven, Gradle, Ant etc.
- Hands-on experience in running development environment on Unix/Linux (Ubuntu, CentOS).
- Cloud computing experience, Integration with third-party devices, experience in writing REST APIs, shell scripting knowledge will be an added advantage.
We are looking for Product Developers-Java Technology with hands-on experience in Core java and socket programming with the flair for working on cutting-edge solutions.










