
Switch Developer/ Integration/ Java Developer
· 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

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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
PayPal is Hiring !!
Designation: Java back-end developer
Experience:3-7yrs
Location: Chennai, Tamilnadu (Work from OFFICE)
Job description :
Must have skills
3 to 5 years
Java, Spring Boot, Hibernate, REST API
Design Patterns
SQL, Oracle, Table design
About us:
Shiprocket is a logistics platform which connects Indian eCommerce SMBs with logistics players to enable end-to-end solutions.
Our innovative data-backed platform drives logistics efficiency, helps reduce cost, increases sales throughput by reducing RTO and improves post order customer engagement and experience.
Our vision is to power all logistics for the direct commerce market in India including first mile, linehaul, last mile, warehousing, cross border and O2O.
Requirement:
We are looking for a Software Engineer who will develop, record and maintain cutting edge applications for Shiprocket Platform.
Key Responsibilities
- Build innovative, state-of-the-art applications which have to perform at scale
- Prepare and maintain all applications utilizing standard development tools
- Develop backend data services and contribute to increase existing APIs
- Ability to act individually in a complex and fast paced environment
- Closely work with the Product and QA teams to ensure smooth delivery
- Participate in solution designing with Tech leads and Systems Architects
- Document the development process, architecture, and standard components
- Coordinate with co-developers and keep project manager well informed of the status of development efforts
- Keep abreast of new trends and best practices in web development
Skills:
- Great people skills to closely work with other teams.
- Strong in establishing systems & processes
- Expertise in Laravel or GoLang, MySQL and Git
- Thorough in Object oriented concepts
- Knowledge of restful Web services
- Understanding of web applications
- Working knowledge of one or more caching, queuing systems in desirable
- Excellent problem solving
- Can do attitude
PE Backend Developer
An opportunity to revolutionize the restaurant industry
Here, at Rebel Foods, we are using technology and automation to disrupt the traditional food industry. We are focused on building an operating system for Cloud Kitchens - using the most innovative technologies - to provide the best food experiences for our customers.
You will enjoy working with us, if:
- You are passionate about using technology to solve customer problems
- You are a software craftsman or craftswoman who is obsessed with high quality software
- You have a flair for good design and architecture
- You are unafraid of rearchitecting or refactoring code to improve it
- You are willing to dive deep to solve complex software issues
- You are a teacher and mentor
Our technology ecosystem:
- Languages: Java, Typescript, Javascript, Ruby
- Frameworks, environments: Spring Boot, NodeJS, ExpressJS
- Databases: AWS Aurora MySQL, MongoDB
- Cloud: AWS
- Microservices, Service Oriented Architecture, REST APIs, Caching, Messaging, Logging, Monitoring and Alerting
- CI/CD and DevOps
- Bitbucket, Jira
You will mostly spend time on the following:
- Leading the design and implementation of software systems
- Driving engineering initiatives across teams with a focus on quality, maintainability, availability, scalability, security, performance and stability
- Writing efficient, maintainable, scalable, high quality code
- Reviewing code and tests
- Refactoring and improving code
- Teaching and mentoring team members
We’re excited about you if you have:
- At least 8 years of experience in software development, including experience building microservices and distributed systems
- Excellent programming skills in one or more languages: Java, C#, C++, Typescript, Javascript, Python or Ruby
- Experience working in Cloud environments: AWS, Azure, GCP
- Experience building secure, configurable, observable services
- Excellent troubleshooting and problem-solving skills
- The ability to work in an Agile environment
- The ability to collaborate effectively within and across engineering, product and business teams
We value engineers who are:
- Crazy about customer experience
- Willing to challenge the status quo and innovate
- Obsessed with quality, performance and frugality
- Willing to take complete responsibility and ownership of results
- Team players, teachers, mentors
- 5+ years of software development experience in Java 8+ and Microservices.
- Experience in developing micro services. Experience in developing High Cohesion & Loosely Coupled Micro Services.
- Experienced in skills of requirement, analysis, design, develop, Java, springboot, microservices, rest api, AWS, lambda, EC2, Jenkins, design pattern, spring security, splunk, auth, docker, SOLID
- Hands on experience on Microservices Architecture.
- Should have excellent acumen in Data Structures, algorithms, problem-solving and Logical/Analytical skills. Thorough understanding of OOPS concepts, Design principles and implementation of different type of Design patterns.
- Experience with Multithreading, Concurrent Package and Concurrent APIs
- Basic understanding of Java Memory Management (JMM) including garbage collections concepts.
- Experience in RDBMS or NO SQL databases and writing SQL queries (Joins, group by, aggregate functions, etc.)
- Hands-on experience with Message Broker like Kafka/Rabbitmq or other. Hands-on experience in creating RESTful webservices and consuming web services. Hands-on experience with spring Cloud/Spring Boot.
- Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
- Experience of writing Junit test cases using Mockito / Powermock frameworks. Should have practical experience with Maven/Gradle and knowledge of version control systems like Git/SVN etc.
- Hands on experience on Cloud deployment/development like AWS/Azure/GCP.
- Good communication skills and ability to work with global teams to define and deliver on projects. Sound understanding/experience in software development process, test-driven development.
Benefits of Working Here:
- Gender Neutral /Diversified Culture
- 51 Leaves annually
- Insurance covered for family
- Incentives, Bonus
- Permanent WFH Option
- Generous parental leave and new parent transition program
- Flexible work arrangements
At Tekion, we're building the only cloud-native platform that is transforming the automotive retail industry, leapfrogging it into the future and providing unparalleled customer experience. We're creating seamlessly integrated, elegant, and intuitive solutions built with cutting edge technology and powered by Big Data, Machine Learning (ML)/ AI and Internet of Things (Connected vehicle to connected devices). We’re harnessing passion, entrepreneurial spirit, deep industry expertise and the latest technologies to create something very special. We're inventing new technology along the way to overcome barriers and solve big problems, all while having a blast doing it!
Key Responsibilities
-
Design and build solutions for complex business workflows
-
Understanding the user persona and deliver a slick experience
-
Take end to end ownership of components and be responsible for the subsystems that you work on from design, code, testing, integration, deployment, enhancements, etc.
-
Write high-quality code and taking responsibility for their task
-
Solve performance bottlenecks
-
Mentor junior engineers
-
Communicate and collaborate with management, product, QA, UI/UX teams
-
Deliver with quality, on-time in a fast-paced start-up environment
Minimum Qualification
-
Bachelor/Master's in computer science or relevant fields
-
0.6 to 2 years of relevant experience
-
Strong sense of ownership
-
Excellent Java and object-oriented development skills
-
Experience in building and scaling microservices
-
Strong problem-solving skills, technical troubleshooting and diagnosing
-
Expected to be a role model for young engineers, have a strong sense of code quality and enforce code quality within the team
-
Strong knowledge in RDBMS and NoSql technologies
-
Experience in developing backends for enterprise systems like eCommerce / manufacturing / supply chain etc
-
Excellent understanding of Debugging performance and optimization techniques
-
Experience in Java, Mongo, MySQL, AWS technologies, ELK stack, Spring boot, Kafka
-
Experience in developing any large scale Experience in cloud technologies
-
Demonstrated ability to deliver in a fast-paced environment
Software Engineer - II (Backend)
As a Software Engineer – II, you'll bring a good understanding of design and coding practices and apply these independently in development. In this role - you could expect to:
- Own the lifecycle of a feature from requirement analysis to deployment and post production processes
- Perform code reviews and support your team implement best practices
- Explore trade off's on module designs
- Continuously improve performance metrics of modules owned. Performs RCAs and deploys long term fixes.
- Implement initiatives that improve engineering efficiency and excellence
- Participate in the hiring and interview process for junior developers on your team
DATAKYND seeks a Python Developer who can collaborate with our front end developers and designers to meet multiple project needs for our clients. We seek team player that can think beyond the code to provide recommendations and solutions focused on meeting client’s needs.
Responsibilities:
- Full-stack development
- Develop data migration, conversion, cleansing, retrieval tools and processes (ETL) using pandas
- Web Automation, Web crawlers and scrapers
- Data import/export formats for third-party applications (JSON/CSV)
- Integrations with third-party applications (REST API)
- Requirements analysis and providing solutions using Python and related tools.
- Supporting and maintaining existing Python scripts, applications and interfaces.
- Evaluating emerging open-source libraries and providing recommendations.
- Strong analytical and problem-solving skills is necessary
Primary Technical and Functional Skills:
- Python 3.x , Web frameworks (Django, Flask)
- JS, HTML, JavaScript, CSS, Bootstrap
- PostgreSQL, MongoDB, SQL
- Multithreading, Logging, Email, Schedulers
- Third-party integration, Rest APIs and microservice
- JSON/CSV
Secondary Technical and Functional Skills:
- Basics of Linux, Nginx, Gunicorn, Apache, Wsgi
- Github , Docker
- Cloud platforms such as GCP, Azure or AWS
- Design and workflow document preparation
Desired profile:
- Should have excellent verbal and written communication skill
We are looking for a Senior Back-end Node.js Developer who is passionate about design, architecture, and programming. Responsibilities include implementing business logic and developing APIs and services. Your primary focus will be development of all server-side logic, definition, and maintenance of databases, and ensuring high performance and responsiveness to requests from the front-end. If you are also passionate about Node.js and software design/architecture, we’d like to meet you.
Requirements:
- 2+ years working in back-end web development with Node.js
- 4+ years working with Javascript
- Experience with server-side templating languages
- Experience with Express.js
- Experience consuming and building robust RESTful APIs
- Experience with Relational Databases like MongoDB, MySQL
- Solid understanding and extensive experience with version control tools like Git
- Exceptional problem solving and ability to work independently
- Exceptional learning skills
- Fluency in both oral and written English
- Understanding of Agile methodologies











