
Minimum 2 years of experience in the software development, including Project Management and
interactions with customers
• Solid understanding of the full software development life cycle
• Working Experience of
a) Ubuntu 18.04.4 LTS
b) Java 1.8
c) Tomcat 9
d) Spring boot framework 2.2.2. RELEASE
e) Spring OAuth2 2.4.0. RELEASE
f) Spring Security JWT 1.1.0.RELEASE
g) Spring Log4j2
h) Hibernate 3.13.3
i) Nginx 1.14.0
j) Hikari Connection Pool
k) Mariaj Connector
l) Google Recaptcha
m) Redis client 3.3.0
Qualification

About APPVENTUREZ MOBITECH PVTLTD
About
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JOB DESCRIPTION
Experience: 5-8 years
Location: Mumbai
Wissen Technology is now hiring for a Senior 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. - 5-8 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 Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.
Website : www.wissen.com
Role
We are looking for an Associate Software Engineer - Java with experience in building high-performing, scalable, enterprise-grade applications.
Responsibilities
- Contribute in all phases of the development lifecycle
- Write well designed, testable, efficient code
- Ensure development is in compliance with specifications
- Prepare and produce releases of software components
Qualifications
- BSc/BE/BTech in Computer Science, Engineering, or a related field
- 2+ years Experience with Java
- Experience in Spring boot Framework
- Experience with REST- JSON, SOAP/XML is mandatory
- Proven working experience in Java development
- Experienced in Server Side Java, J2EE, Servlets, Spring/Spring boot, JAXB, JAX-WS, MySQL/PostgreSQL, Junit
- Knowledge of Relational Databases, SQL, and ORM technologies (JPA2, Hibernate).
- Hands-on experience in designing and developing applications using Java EE
- Platforms with Open Source Frameworks - Spring/Spring boot, XML, Integration with SOAP and RESTful Web Services, WS security.
Card91 is simplifying business payments by providing a plug and play issuance infrastructure
to businesses for domestic and cross-border payments. Our full stack platform enables
businesses to gain control and visibility into their payment flows, controlling the entire payment
lifecycle from onboarding, to issuance, to transaction and data reconciliation. The platform
aims to provide holistic solutions around payment issuance and distribution management. Our
deep focus in payments will help us in bringing new issuance formats as well as technologies
to businesses.
The company has been founded by seasoned technology entrepreneurs who have founded
successful companies like Myntra, Mastiff Technologies earlier. Headquartered in Bangalore,
with presence in Mumbai and NCR, Card91 aims to disrupt the payment infrastructure space
in the issuer-processor segment.
Position: Java Developers
We are building our core team which will be responsible for a highly scalable, always available
microservices based backend for payment processing. The developer will be involved with the
design, implementation, and execution from day one and build a robust, secure, and scalable
payment processing engine.
Roles & Responsibilities
● Individual Contributors talking full ownership of the micro services
● Design and Implement the micro services from scratch
● Be creative and always try to evaluate new strategies to execute faster
● Team player and always eager to teach new team members about the code, structure
and design
● Not afraid of bringing new designs (even languages) which will make the system
execute faster
Experience and Qualifications
● Having 2 - 5 years of experience
● Degree from a premier institute like IIT/NIT/BITS is desirable
● A strong expertise in Java/Spring/Spring Boot/Hibernate/Java
● Experience in developing highly scalable and reliable web applications, including
integration with internal and external systems.
● Experience building web services in REST with technologies like Spring Boot, Spring-
WS, spring MVC or JAX-RS
● Should be able to write test cases (unit and functional) to cover most of the code
● Experience in databases like MySQL and NoSQL db like Cassandra, etc.
● Experience with Cloud computing AWS & Microservices architecture
● Exposure to front end technologies like VueJS, ReactJS etc is an advantage
● Knowledge on Redis, ELK stack or Temporal BPM is a big plus
● Docker & Kubernetes experience is a big plus
● Previous experience of Fintech company is an added advantage
What’s on offer
● Vibrant, fun and rewarding culture that nurtures and promotes excellence
● Opportunities to learn and interact with payment industry leaders
● Competitive remuneration, group health insurance & PF
● Other office perks of being part of an early-stage Start-up
● Location: HSR Layout, Bangalore
•Design and develop distributed, scalable, high availability web services.
•Work independently completing small to Mid-sized projects while
managing competing priorities in a demanding production environment.
•you will be writing reusable and maintainable quality code.
What You'll Bring
•BS in CS (or equivalent) and 4+ years of hands-on software design and
development experience in building high-availability, scalable backend
systems.
•hands-on coding experience is a must.
•Expertise in working on Java technology stacks in Linux environment -
Java, Spring/ Hibernate, MVC frameworks, TestNG, JUnit.
•Expertise in Database Schema Design, performance efficiency, and SQL
working on leading RDBMS such as MySQL, Oracle, MSSQL, etc.
•Expertise in OOAP, Restful Web Services, and building scalable systems
Preferred Qualifications:
•Experience using Platforms such as Drools, Solr, Memcached, AKKA, Scala,
Kafka etc. is a plus
•Participation in and Contributions to Open-Source Software Development and contributions
Role
As one of the senior members of the backend development team you will be
responsible for architecting and setting the standards for building our core
backend/microservices. Also, you will be responsible for shaping up the entire system for scale
and collaborating extensively with the frontend and design teams to create the best consumer
experiences.
Responsibilities
● Develop microservices that will be used by the frontend through API endpoints.
● Translate business requirements into high quality code.
● Ensure that the code is deployed in a secure and scalable fashion.
● Focus on code maintainability and performance of application.
● Provide technical advice and assists in solving programming problems.
● Enhance Analytics and overall backend architecture for better performance.
Requirements
● 4+ years of backend/full-stack development experience
● 1+ years of experience on NodeJS
● 1+ years experience in building APIs in a microservice architecture
● Has experience managing other developers, recruiting and training.
● Experience in PHP is a plus
● Experience with AWS services such as Lambda, CloudWatch, CloudFront
● Has experience in code reviewing/being the gatekeeper for an entire project
● Experience with RabbitMQ or similar queuing system
● Experience with Redis/ElasticSearch is a plus
● Familiarity with CI/CD pipeline tools like Jenkins
● Good knowledge of working with Git
● A knack for benchmarking and optimization
Responsibilities:
- Designing and implementing Java-based applications.
- Analyzing user requirements to inform application design.
- Defining application objectives and functionality.
- Aligning application design with business goals.
- Developing and testing software.
- Debugging and resolving technical problems that arise.
- Producing detailed design documentation.
- Recommending changes to existing Java infrastructure.
- Developing multimedia applications.
- Developing documentation to assist users.
- Ensuring continuous professional self-development.
Requirements:
- Good knowledge in Java integration, Spring and oauth/Rest Integration
You will get while working with us
- Opportunity to work on highly distributed systems with micro-services architecture and big-data volumes
- Solve challenging real-world problems by leveraging OOP & functional programming concepts
- Opportunity to incubate an open source project
- Get to work with cutting edge technologies to name a few Kafka, Elasticsearch, Postgres, Scala
- Developing scalable, sustainable and reliable enterprise systems
- Hands-on experience of working with TDD and BDD
- Develop environment using practices such as Continuous Integration, Continuous Delivery
- Learning opportunity on how to turn complex business requirements into a working product
Roles & Responsibilities
- Requirement understanding & analysis by interacting with client
- Carry out architectural and design discussions with fellow team members and come up with right approach
- Understand system domain, user’s perspective of system and use-cases
- Understand patterns in existing code and effectively leverage and improvise it
- Develop backend involving Java8 based functional programming and REST services
- Ensure best practices of code reviews, automated testing and CI
- Research new tools & technologies required for the projects
- Mentor fellow team members and bring their level up
Must have
- Strong hold on written/verbal communication
- Strong core Java fundamentals
- Strong Analytical & problem solving skills
- Proactive and inherent nature of working with ownership
- Passion of writing clean code
- Experience in designing relational data model from business requirements
Good to have
- Knowledge of functional programming (Scala or Java 8 lambda)
- Knowledge of NOSQL
- Working knowledge of linux & networking
- Performance optimisation - Optimise/refactor queries, code, stored procedures to take performance next level
• Build the front-end of the application in Liferay
• Develop and manage well-functioning databases and backend applications using Liferay
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and fix issues
• Write technical documentation
• Manage VM instances on the cloud
Skills:
• Self-driven, flexible, and innovative with Outstanding analytical, problem-solving, and
communication skills
• Understanding of fundamental design principles for building a scalable application
• Strong knowledge and experience of Java, Liferay and JBPM
• Technical Skills:
• Languages
o Java
o Javascript
o jQuery
o ANSI -SQL
• Frameworks/Libraries/Servers
o Liferay 6.2X
o JBPM 3.x
o Tomcat 7
o Databases
o MYSQL Server
JOB DESCRIPTION – JAVA & JBPM - Q21.D.JAVA005
Quadwave Consulting Private Limited | 2
• OS
o Linux (Ubntu/CentOS)
Qualifications:
• Minimum 4 years of experience in full-stack development of Liferay based portal application
• Minimum 3 years of experience to develop applications using JBPM
• 4-7 years of experience in Java, HTML, Javascript
• Hands-on experience in working with MySQL
• Bachelor’s Degree or equivalent experience









