
Job Responsibilities: -
- Work on building enterprise grade applications with a strong knowledge of the .net core framework. Experience with Node JS.
- Create Libraries that would be shared across the different modules in the system that can be leveraged by multiple teams within the organization.
- Good understanding of data structures to identify the correct data structure for a specific use case.
- Build RESTful API for customer consumption. Prior knowledge building APIs is a requirement. Understanding of HTTP error codes is a must.
- Work on code in a distributed code development environment. Prior use of Git/Github is desirable.
- Work with a Unit Test platform.
- Strong knowledge on Encryption standards – Asymmetric and Symmetric.
- Create and Manage System Documentations.
Job Qualifications
- At least 4+ years of experience using C# programming language in the build of enterprise software (.net core, asp.net core, web api) – For .Net Developer
- At least 7+ years of experience using C# programming language in the build of enterprise software (.net core, asp.net core, web api). – For Lead.
- Experience handling ISO8583 message standard; Payments Industry knowledge.
- Good understanding of version control (using Git/Github).
- Experience with Unit Test framework; TDD Approach.
- Knowledge and understanding of PCI Requirements for Card processing software .
- Understanding of SQL Database and Database Design.
- Strong understating of hybrid cloud application basics based on Docker, Kubernetes, Microservices and Postgres.
- Minimal 2+ years of experience in building enterprise scale applications: coding, designing, developing, and analyzing data.
- Agile environment. AWS, Docker, Kubernetes, DevOps environment Lead levels only.
- Manage CI/CD Pipeline.
- E/B.Tech/B.Sc/MCA/Msc in Computer Science.
Company Overview
http://www.corecard.com">www.corecard.com & http://www.corecardindia.com">www.corecardindia.com
Core Card Software is a product company, to provide financial service organizations with the best card management applications to help them compete both locally and globally. Core Card Software, a leading provider of card management systems. The Core Card software solution provides the market's most feature-rich platform for processing and managing accounts receivables and a full range of card products including prepaid/stored-value, fleet, credit, debit, commercial, government, healthcare and private-label cards. Core Card have offices based in Atlanta, Bhopal & Navi Mumbai.

About Corecard Software
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5–10 years of experience in backend or full-stack development (Java, C#, Python, or Node.js preferred).
•Design, develop, and deploy full-stack web applications (front-end, back-end, APIs, and databases).
•Build responsive, user-friendly UIs using modern JavaScript frameworks (React, Vue, or Angular).
•Develop robust backend services and RESTful or GraphQL APIs using Node.js, Python, Java, or similar technologies.
•Manage and optimize databases (SQL and NoSQL).
•Collaborate with UX/UI designers, product managers, and QA engineers to refine requirements and deliver solutions.
•Implement CI/CD pipelines and support cloud deployments (AWS, Azure, or GCP).
•Write clean, testable, and maintainable code with appropriate documentation.
•Monitor performance, identify bottlenecks, and troubleshoot production issues.
•Stay up to date with emerging technologies and recommend improvements to tools, processes, and architecture.
•Proficiency in front-end technologies: HTML5, CSS3, JavaScript/TypeScript, and frameworks like React, Vue.js, or Angular.
•Strong experience with server-side programming (Node.js, Python/Django, Java/Spring Boot, or .NET).
•Experience with databases: PostgreSQL, MySQL, MongoDB, or similar.
•Familiarity with API design, microservices architecture, and REST/GraphQL best practices.
•Working knowledge of version control (Git/GitHub) and DevOps pipelines.
Understanding of cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes).
Job Description:
We are looking for a Senior Java Developer with strong expertise in Apache Kafka and backend systems. The ideal candidate will have hands-on experience in Java (8/11+), Spring Boot, and building scalable, real-time data pipelines using Kafka.
Key Responsibilities:
- Develop and maintain backend services using Java and Spring Boot
- Design and implement Kafka-based messaging and streaming solutions
- Optimize Kafka performance (topics, partitions, consumers)
- Collaborate with cross-functional teams to deliver scalable microservices
- Ensure code quality and maintain best practices in a distributed environment
Required Skills:
- 6+ years in Java development
- 3+ years of hands-on Kafka experience (producers, consumers, streams)
- Strong knowledge of Spring Boot, REST APIs, and microservices
- Familiarity with Kafka Connect, Schema Registry, and stream processing
- Experience with containerization (Docker), CI/CD, and cloud platforms (AWS/GCP/Azure)
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. - 5 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 Company
Our client is in the business of delivering cutting-edge software solutions, hardware systems, and IT services. It lends the right technological edge to governments and businesses. This enables them to achieve their organizational objectives efficiently and effectively to scale their businesses to newer heights.
Minimum Requirements/Qualifications:
• Bachelor’s/Master’s degree in computer science, Computer Engineering or a related field is preferred.
• Must have at least 5 to 7 years of experience in application development (Java,Spring Framework), Deployment(Apache Tomcat & Nginx)
• Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts.
• Knowledge & hands-on experience of Java, Spring Framework, Spring Security, JSP, Apache Tomcat, Nginx is a must.
• Must have experience with Bootstrap CSS, jQuery etc.
• Basic Understanding of PostgreSQL, MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services.
• Relevant Knowledge of Java GUI frameworks according to project requirements.
• Experience in handling external and embedded databases.
Roles & Responsibilities
• Develop new modules, patches & Updates/upgrades for an existing application (developed in-house by the client)
• Bug fixing, and updating of software.
• Analyze user requirements to define business objectives.
• Maintain Java-based applications that can be high-volume and low-latency.
• Identify and resolve any technical issues arising.
• Write well-designed, testable code.
• Conducting software analysis, programming, testing, and debugging.
• Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review.
RESPONSIBILITIES:
- Help your engineers grow their skills and experience
- Conduct code reviews, and make technical contributions to product architecture as well as get involved in solving bugs and delivering small features
- Hold regular 1:1's with all members of the team, give regular and clear feedback around the individual's performance
- Foster technical decision-making on the team, but make final decisions when necessary
- Provide oversight and leadership to a team of developers to ensure timely execution of team and project deliverables
- Maintain up-to-date skills in software development technologies and a broad understanding of the business, business needs, and how applications/assets drive and support the business
REQUIREMENTS:
- 6+ years of experience in software development and 1+ in team management.
- In-depth technical experience in at least one of the core languages, frameworks, or technologies used in backend development.
- Ability to mentor junior software developers, as well as to collaborate with all stakeholders.
- Extensive experience in developing, deploying, and integrating software solutions.
- Proficiency in documenting processes and monitoring performance metrics.
- Knowledge of best practices related to design principles, API development and software architecture.
- Ability to keep up with software industry trends and innovation.
- Exceptional interpersonal and communication skills.
Job Category: Software Development
Job Type: Full Time
Job Location: Bangalore
Gnani.ai aims to empower enterprises with AI based speech technology.
Gnani.ai is an AI-based Speech Recognition and NLP Startup that is working on voice-based solutions for large businesses. AI is the biggest innovation that is disrupting the market and we are at the heart of this disruption. Funded by one of the largest global conglomerates in the world, and backed a number of market leaders in the tech industry,
We are working with some of the largest companies in the banking, insurance, e-commerce and financial services sectors and we are not slowing down. With aggressive expansion plans, Gnani.ai aims to be the leader in the global market for voice-based solutions.
Gnani.ai is building the future for voice-based business solutions. If you are fascinated by AI and would like to work on the latest AI technologies in a high-intense, fast-growing and flexible work environment with immense growth opportunities, come and join us. We are looking for hard workers, who are ready to take on big challenges.
NLP Software Developer
Gnani.ai is looking to hire software developers with 0 to 2+ Years of experience, with a keen interest in designing and developing chat and voice bots. We are looking for an Engineer who can work with us in developing an NLP framework if you have the below skill set
Requirements :
- Proficient knowledge of Python
- Proficient understanding of code versioning tools, such as Git / SVN.
- Good knowledge of algorithms to find and implement tools for NLP tasks
- Knowledge of NLP libraries and frameworks
- Understanding of text representation techniques, algorithms, statistics
- Syntactic & Semantic Parsing
- Knowledge/work experience on No-SQL database Mongo.
- Good knowledge of Docker container technologies.
- Strong communication skills
Responsibilities :
- Develop NLP systems according to requirements
- Maintain NLP libraries and frameworks
- Design and develop natural language processing systems
- Define appropriate datasets for language learning
- Use effective text representations to transform natural language into useful features
- Train the developed model and run evaluation experiments
- Find and implement the right algorithms and tools for NLP tasks
- Perform statistical analysis of results and refine models
- Constantly keep up to date with the field of machine learning
- Implement changes as needed and analyze bugs
Good To Have :
Start up experience is a plus
Have you streamed a program on Disney+, watched your favorite binge-worthy series on Peacock or cheered your favorite team on during the World Cup from one of the 20 top streaming platforms around the globe? If the answer is yes, you’ve already benefitted from Conviva technology, helping the world’s leading streaming publishers deliver exceptional streaming experiences and grow their businesses.
Conviva is the only global streaming analytics platform for big data that collects, standardizes, and puts trillions of cross-screen, streaming data points in context, in real time. The Conviva platform provides comprehensive, continuous, census-level measurement through real-time, server side sessionization at unprecedented scale. If this sounds important, it is! We measure a global footprint of more than 500 million unique viewers in 180 countries watching 220 billion streams per year across 3 billion applications streaming on devices. With Conviva, customers get a unique level of actionability and scale from continuous streaming measurement insights and benchmarking across every stream, every screen, every second.
As Conviva is expanding, we are building products providing deep insights into end user experience for our customers.
Platform and TLB Team
The vision for the TLB team is to build data processing software that works on terabytes of streaming data in real time. Engineer the next-gen Spark-like system for in-memory computation of large time-series dataset’s – both Spark-like backend infra and library based programming model. Build horizontally and vertically scalable system that analyses trillions of events per day within sub second latencies. Utilize the latest and greatest of big data technologies to build solutions for use-cases across multiple verticals. Lead technology innovation and advancement that will have big business impact for years to come. Be part of a worldwide team building software using the latest technologies and the best of software development tools and processes.
What You’ll Do
This is an individual contributor position. Expectations will be on the below lines:
- Design, build and maintain the stream processing, and time-series analysis system which is at the heart of Conviva's products
- Responsible for the architecture of the Conviva platform
- Build features, enhancements, new services, and bug fixing in Scala and Java on a Jenkins-based pipeline to be deployed as Docker containers on Kubernetes
- Own the entire lifecycle of your microservice including early specs, design, technology choice, development, unit-testing, integration-testing, documentation, deployment, troubleshooting, enhancements etc.
- Lead a team to develop a feature or parts of the product
- Adhere to the Agile model of software development to plan, estimate, and ship per business priority
What you need to succeed
- 9+ years of work experience in software development of data processing products.
- Engineering degree in software or equivalent from a premier institute.
- Excellent knowledge of fundamentals of Computer Science like algorithms and data structures. Hands-on with functional programming and know-how of its concepts
- Excellent programming and debugging skills on the JVM. Proficient in writing code in Scala/Java/Rust/Haskell/Erlang that is reliable, maintainable, secure, and performant
- Experience with big data technologies like Spark, Flink, Kafka, Druid, HDFS, etc.
- Deep understanding of distributed systems concepts and scalability challenges including multi-threading, concurrency, sharding, partitioning, etc.
- Experience/knowledge of Akka/Lagom framework and/or stream processing technologies like RxJava or Project Reactor will be a big plus. Knowledge of design patterns like event-streaming, CQRS and DDD to build large microservice architectures will be a big plus
- Excellent communication skills. Willingness to work under pressure. Hunger to learn and succeed. Comfortable with ambiguity. Comfortable with complexity
Underpinning the Conviva platform is a rich history of innovation. More than 60 patents represent award-winning technologies and standards, including first-of-its kind-innovations like time-state analytics and AI-automated data modeling, that surfaces actionable insights. By understanding real-world human experiences and having the ability to act within seconds of observation, our customers can solve business-critical issues and focus on growing their businesses ahead of the competition. Examples of the brands Conviva has helped fuel streaming growth for include DAZN, Disney+, HBO, Hulu, NBCUniversal, Paramount+, Peacock, Sky, Sling TV, Univision, and Warner Bros Discovery.
Privately held, Conviva is headquartered in Silicon Valley, California with offices and people around the globe. For more information, visit us at www.conviva.com. Join us to help extend our leadership position in big data streaming analytics to new audiences and markets!

Technical Skills to work with http://asp.net/">ASP.NET Web Forms(2) & MVC(1), Win Forms, WCF/Web API, C#, JavaScript & JQuery, Stored Procedures (SQL Server/MySQL), HTML, CSS, IIS
- Ability tounderstand requirements by reading Business Requirement Documents(BRD), Functional Requirement Documents(FSD)
- Capability to visualize and document functional requirements into technical implementations using technical documentation and unit test cases
- Ability to code technical implementations based approved technical designs
- White box testing (unit test)
- Ability to communicate regarding work related verbal and written
- Other required soft skills to work in a team.
- Ability to guide junior developers technically.










