
About Card91
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 Tech earlier. Headquartered in Bangalore, with presence in Mumbai and NCR, Card91 aims to disrupt the payment infrastructure space in the issuer-processor segment.
About the role
Our core issuance and processing system runs on Java. This system is responsible for powering the card issuance and management user experience as well. We are using Spring Boot stack for building our services.
The issuance backend team will be a small team of 2-4 developers, with a meaty responsibility to bring the user experience to life. It will be a hands-on role where every member of the team enjoys writing high quality code, and thrives on each other's experience.
If the following broad attributes sound like you, we would love to talk to you
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4-6 years experience in backend services in Java.
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Strong understanding of relational databases.
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Ability to develop clean data models for complex problem domains.
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Pragmatic approach to architecture and design - knowing when it is ok to deviate from
said best practices in the interest of practicality.
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Above average writing and communication skills in English. Enjoy writing crisp and understandable documentation.
Why you should join
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You enjoy working in smaller teams. We are a startup, and we believe that smaller teams are a super-power. There is lesser management overhead, and more talk about the work that matters.
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You care about end-user and developer experience - and how the backend impacts that. Working backwards from what the user experience demands, rather than giving up to the path of least resistance.
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We pay well (above market average). We are sufficiently capitalised by some prestigious investors in the Fintech space and we are looking at the long game. It is a fun and exhilarating journey ahead and we look forward to having some great team mates!

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Wissen Technology is hiring for Java Tech lead
Required:
- 8-10 years of industrial experience
- Java and related frameworks.
- Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
- Exposure on Fintech domain is mandatory
- Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS
- Good knowledge of multi-threading and high volume server side development
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
Company Profile:
Company Name : Wissen Technology
Group of companies in India : Wissen Technology & Wissen Infotech
Work Location - Bangalore
Website : www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: https://www.linkedin.com/company/wissen-technology

Responsibilities of a Senior Software Engineer (Backend):
- You will be a guide in the entire application lifecycle including research, design, development, testing (dev owns quality), along with continuous deployment and delivery
- Lead design with a major focus on best user experience, performance, scalability and future expansion
- You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills to bring in continuous improvements and implement best practices.
- You will apply the latest technology thinking from our tech radar, adopt best design practices to solve complex problems and ensure our product is the best in usability.
- You will work directly with the CEO and the cross functional product teams, align on the needs of the products and operations.
- You will analyze business, technology challenges and suggest solutions
- Build an “Awesome” team
This opportunity is for you if,
- You have 4-6 Years of work experience in building highly-interactive applications using Java, Spring MVC, Spring JMS, Spring JDBC, Spring IOC, Spring Boot, MySQL, MiBatis, ReactJS, Java Script, jQuery, AWS, JMS and have knowledge on wide range of web technologies, tools and Frameworks.
- You have experience in working with Restful webservices
- You have strong knowledge and understanding of design patterns and domain driven design
- You understand fundamental design principles behind building scalable, resilient, and maintainable applications
- You have functional knowledge of inclusive design: accessibility, and related tooling
- You have consumer web development experience for high-traffic, public facing web applications
- You have knack for writing clean, readable, re-usable code
- You have good knowledge on TDD and CI/CD practices.
- You have experience in managing and publishing releases using Git branching and tools like NPM and YARN.
- You have penchant for learning
- You are a great analytical & logical thinker and someone who loves solving problems
- You are passionate, energetic, enthusiastic and a go-getter
- You are “ FUN @ Work “
Location: Mumbai, Maharashtra, India
Desired Experience: 3+ years
Roles and Responsibilities :
We are seeking an experienced Java Engineer to join our team. The ideal candidate will be responsible for designing and developing scalable applications using Java and related frameworks.
Core Accountabilities:
- Design and develop high-quality Java applications using best practices and design patterns Write clean, maintainable, and testable code using Java and related frameworks
- Collaborate with cross-functional teams to develop and deploy applications
- Develop and maintain continuous integration and continuous deployment pipelines using Git and related tools
- Troubleshoot and debug applications in production and development environments
- Stay up-to-date with emerging trends and technologies in software engineering and Java development
Experience required :
- Bachelor's degree in Computer Science or a related field
- 3+ years of experience in developing applications using Java and related frameworks
- Strong experience in Core Java, Spring Framework, Hibernate, and related Java frameworks
- Experience in working with Git for version control and collaboration.
Additional optional requirements
- Knowledge of AWS services
- Experience in working with NoSQL databases such as MongoDB and Cassandra
- Experience in other programming languages such as Python and Node.js
Skills required :
- Excellent problem-solving skills and ability to work in a fast-paced environment Strong communication and collaboration skills
● Proven work experience as a Back-end developer.
● In-depth understanding of the entire web development process (design, development and deployment).
● Proficient in Java, with a good knowledge of its ecosystems
● Basic understanding of JVM, its limitations, weaknesses, and workarounds
● Ability to decide when to use relational vs NoSQL databases and must be experienced with at least one of
the relational databases (MySQL) as well as experience with ElasticSearch will be good to have
● Familiarity with concepts of MVC, JDBC, and RESTful
● Experience with Spring, Spring Boot, Spring MVC
● Experience in CI/CD and Cloud technologies
● Expertise in developing enterprise-level web applications and RESTful APIs using MicroServices, with
demonstrable production-scale experience
● Familiarity with front-end languages (e.g. HTML, JavaScript and CSS) - Not mandatory
● Participation in coding competitions such as hackathon, hackerrank will be added advantage.
We’re doing things no one has ever done. From developing game-changing technology and solutions to
helping the world’s top brands connect like never before, every day brings new challenges and opportunities
to innovate. We offer the chance to make your mark on something awesome.
Skillset for : Java Developer
Experience : 4to 7 years
----------------------
Java basics, OOPs concepts, Thread concepts, Collections, Java 1.8 features
Database: SQL Joins
Experience in frameworks like SpringMVC, Springboot etc..
Experience in implementing Rest API
Some Java Design patterns
Good to have some experience on any Message broker, NoSQL db like Mongodb, ORM like Hibernate
Location: Bangalore
Education: Bachelor's degree in Computer Science or a related field or equivalent experience.
• Proficiency in Java,
• MYSQL database (past experience on ETL, Kafka, Spring Boot, Java J2EE,
and implementation work will be great).

Core 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
- Deliver with quality, on-time in a fast-paced start-up environment
Required Skills:
- Bachelor/Master's in computer science or relevant fields
- 4+ 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
Company Introduction
Idea Clan is an Internet Marketing company that works with a lot of global ecommerce, Social Media and performance marketing clients. We own an Influencer network called Viral Sparks. We work with huge brands like twentytwowords.com, ranker, diply, littlethings.com, boredometherapy, providr etc. We are a Certified GOLD partner with Microsoft and an expert at CPA (Cost per action) marketing solutions. Everyone that works at IdeaClan is family. And we grow as one.
Job Description
We are looking for a Java developer responsible for building Java applications. This includes anything between complex groups of back-end services and their client-end (desktop and mobile) counterparts. Your primary responsibility will be to design and develop these applications, and to coordinate with the rest of the team working on different layers of the infrastructure. Thus, a commitment to collaborative problem solving, sophisticated design, and product quality is essential.
Responsibilities
- Translate application storyboards and use cases into functional applications
- Design, build, and maintain efficient, reusable, and reliable Java code
- Ensure the best possible performance, quality, and responsiveness of the applications
- Identify bottlenecks and bugs, and devise solutions to these problems
- Help maintain code quality, organization, and automatization
Skills
- Proficient in Java, with a good knowledge of its ecosystems
- Proficient in Springboot, Hibernate, RabbitMQ
- Solid understanding of object-oriented programming
- Familiar with various design and architectural patterns
- Skill for writing reusable Java libraries
- Knowledge of concurrency patterns in Java
- Familiarity with concepts of MVC, JDBC, and RESTful, GraphQL
- Experience with popular web application frameworks, such as Play and Spark
- Knack for writing clean, readable Java code
- Experience with both external and embedded databases
- Understanding fundamental design principles behind a scalable application
- Basic understanding of the class loading mechanism in Java
- Creating database schemas that represent and support business processes
- Basic understanding of JVM, its limitations, weaknesses, and workarounds
- Implementing automated testing platforms and unit tests
- Proficient understanding of code versioning tools, such as Git
- Familiarity with build tools such as Ant, Maven, and Gradle
- Familiarity with continuous integration
We are looking for a talented and motivated engineer to join our fleet and help us solve real-world problems in this exciting field. Join us and share the dream of building the next generation online platform for the Auto industry.
What you'll do :
- Design and architect our core components
- End to end systems development
- Ownership of complete systems from development till production and maintenance
- Infrastructure management on AWS
Technologies you'll use :
- Microservices, AWS, Java, Spring-boot
- Nginx
- PostgreSQL, Redis
- ElasticSearch
- Gradle
- Kafka, RabbiMQ
- Any cool piece of technology that you can bring onboard.
What you are :
- You love technology and always open to learning new tools
- You are a self-starter
- You are proficient in Java, SQL
- You have good knowledge of Databases: RDBMS/Document
- You have worked with server technologies: Spring / Dropwizard / Tomcat/Spring Boot
- You have a good understanding of REST API design
- You believe in clean and maintainable code
About the role:
As a product engineer I/II, you will be responsible for continuous improvement of Cashfree experience for all our customers and end- users. You will dream big but identify and take small steps towards achieving that goal. You will receive great feedbacks at every step of the development cycle from your peers to our customers and end- users.
You may be working on architecting the money disbursement flow or creating most- friendly interface for consumer payment. All our engineers identify as generalist and building products that are useful and delightful are core to our engineering culture.
You're more than a coder. You wil be part of entire product process, from conceptualizing till post- launch evaluation. You should have deep empathy for the users to minimize the gap between what we build and what they need. Have sound judgement to balance between code writing speed and it's maintainability. Knowledge of variety of server- side/ frontend frameworks is desirable but not compulsory

