
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: Python Developer
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 Python framework (like Django, Flask or Pyramid)
● Experience in creating APIs with design standards, patterns and best-practices
● Knowledge of object-relational mapping (ORM)
● GoLang experience is a big plus
● Experience building web services in REST
● knowledge and hands-on experience in API security standards and implementation
(Oauth, OpenId)
● Experience in developing highly scalable and reliable web applications, including
integration with internal and external systems.
● 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
● 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 startup
Location: HSR Layout, Bangalore

About Card91
About
Connect with the team
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Key Responsibilities
- Develop and maintain Python-based applications.
- Design and optimize SQL queries and databases.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Write clean, maintainable, and efficient code.
- Troubleshoot and debug applications.
- Participate in code reviews and contribute to team knowledge sharing.
Qualifications and Required Skills
- Strong proficiency in Python programming.
- Experience with SQL and database management.
- Experience with web frameworks such as Django or Flask.
- Knowledge of front-end technologies like HTML, CSS, and JavaScript.
- Familiarity with version control systems like Git.
- Strong problem-solving skills and attention to detail.
- Excellent communication and teamwork skills.
Good to Have Skills
- Experience with cloud platforms like AWS or Azure.
- Knowledge of containerization technologies like Docker.
- Familiarity with continuous integration and continuous deployment (CI/CD) pipelines
Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large scale social or location-based app.
· The Objective:
You will play a crucial role in designing, implementing, and maintaining our data infrastructure, run tests and update the systems
· Job function and requirements
o Expert in Python, Pandas and Numpy with knowledge of Python web Framework such as Django and Flask.
o Able to integrate multiple data sources and databases into one system.
o Basic understanding of frontend technologies like HTML, CSS, JavaScript.
o Able to build data pipelines.
o Strong unit test and debugging skills.
o Understanding of fundamental design principles behind a scalable application
o Good understanding of RDBMS databases among Mysql or Postgresql.
o Able to analyze and transform raw data.
· About us
Mitibase helps companies find warm prospects every month that are most relevant, and then helps their team to act on those with automation. We do so by automatically tracking key accounts and contacts for job changes and relationships triggers and surfaces them as warm leads in your sales pipeline.
- 5 years experience with the Django framework
- Experience with building APIs (REST or GraphQL)
- Strong Troubleshooting and debugging skills
- React.js knowledge would be an added bonus
- Understanding on how to use a database like Postgres (prefered choice), SQLite, MongoDB, MySQL.
- Sound knowledge of object-oriented design and analysis.
- A strong passion for writing simple, clean and efficient code.
- Proficient understanding of code versioning tools Git.
Experience:
- Min 5 year experience
- Startup experience is a must.
Location:
- Remote developer
Timings:
- 40 hours a week but with 4 hours a day overlapping with client timezone. Typically clients are in California PST Timezone.
Position:
- Full time/Direct
- We have great benefits such as PF, medical insurance, 12 annual company holidays, 12 PTO leaves per year, annual increments, Diwali bonus, spot bonuses and other incentives etc.
- We dont believe in locking in people with large notice periods. You will stay here because you love the company. We have only a 15 days notice period.
- 5-7+ years of commercial Java development experience
- Experience with well known Open Source frameworks/libraries, like Spring Boot
- Work experience with Docker
- Microservice experience
- Experience with AWS like ECS, Lambda, SQS, RDS, Kinesis streams
- Familiar with iterative development
- Upper-intermediate level of English
- Solid understanding of communication and network protocols (TCP/IP, HTTP).
- At ease with Unix/Linux
- Excellent analytical and debugging skills
- Familiar with both SQL and noSQL databases (MySQL, DynamoDB, Memcached, Redis)
- Practical experience with scaling applications to big user numbers is a plus
- Experience with other programming languages is a plus.
Position: Senior Software Engineer
Location : Gurgaon ( WFH untill Pandamic )
You'll be responsible for developing web applications for managing various working aspects of e-commerce, warehousing & supply chain systems. Your primary focus will be the development of server-side logic and client-side interfaces, ensuring high performance and responsiveness to requests from the front-end.
Responsibilities:
● Design, develop, test, deploy, and maintain highly scalable user-facing software applications.
● Participate in business discussions and present software solutions to their various problems.
● Coordinate full cycle product development activities with executive management, product management, quality assurance, support, and operations teams.
● Build software modules, libraries, and frameworks that support complex back-end applications as per the specifications and on time.
● Design schema for SQL and NoSQL database.
● Setup metrics tracking and inspect server code for speed optimization.
● Assign tasks to team members and gauge progress of various projects.
● Should open to work on PHP/Laravel.
Requirements:
● 4+ years hands-on experience on writing and deploying production quality code.
● Solid foundation in computer science with strong competency in data structures, algorithms and software design.
● Have created enterprise level applications in any programming language.
● Professional experience using PHP, Python and Golang among others.
● Development experience with Unix/Linux.
● Strong Experience with relational SQL and NoSQL databases.
● Hands on experience in using AWS technologies like EC2, lambda functions, SNS, SQS and worked on serverless architecture.
● Follow right back-end engineering practices and desire to continually keep up with its advancements.
● Constantly improve product quality, security, and performance.
● Experience in leading the team and working with cross-functional teams in a dynamic environment is a plus.
● Domain knowledge of warehousing operation related processes and ecommerce workflows is preferred.
● Should open to work on PHP/Laravel.
Icicle is looking for an experienced RoR developer who can effortlessly build with us the cleanest of all designs. We're looking for passionate Ruby on Rails developers to join our IT team in Mumbai.
Icicle builds Web & Mobile products for Startups, Brands, Digital Agencies and Enterprises, helping in bringing their ideas to life. More - www.icicletech.com
The team consists of bright young designers, hackers, senior developers, startup specialists. We are distributed with offices in Mumbai, Bangalore and New York. More - www.icicletech.com
What will you do?
As a Ruby on Rails developer, you will get to:
- Participates as an independent contributor on an agile development team working closely with team members to effectively deliver high quality code.
- Complete ownership of a product or feature from development to launch.
- Coordinate and participate in the code review process to ensure delivery of high-quality, testable code using best practices and current software patterns.
- Review and mentor other team members. Be a team player!
- Get complete control of the product with active involvement in deciding stack and architecture.
What we are looking for
- Minimum 3+ years in depth hard core experience in Ruby on Rails
- Deep understanding of object-orientated programming
- A knack for writing clean, readable maintainable Ruby code.
- Identify bottlenecks and bugs, and devise solutions to these problems.
- Skillset in Testing using Rspec
- Demonstrated skills and experience with writing testable code and using related best practices.
- Understanding of web services technologies such as REST is required.
- Good experience and understanding of continuous integration and deployment process.
- Knowledge in working with AWS or other cloud platform
- Experience in working with limited direction while exceeding delivery expectations.
- Great communication, particularly in explaining your coding processes, suggestions for best practices, and identifying ways to improve the teams coding quality.
Technical Expertise
Core
Ruby, Ruby on Rails, HTML, CSS3, JavaScript, Rest API
Databases
PostgreSQL, MongoDB, Redis, Memcached
Testing
Rspec (or any other Unit testing framework)
Cloud/Deployments
Capistrano, Docker, Heroku, AWS, Kubernetes
Desirable Skills
- Participation in open-source projects.
- Actively involved in solving problems on Github, Stackoverflow.com and groups.
- Experience working in JS and front end frameworks (React)
- Interest in learning new technologies.
Why Icicle
- 100% work-life balance
- Competitive salary
- Perks of getting free Gym Membership vouchers.
- Medical checkup Vouchers with topnotch hospitals and coupons for medical bills.
- Exposure to futuristic technology, mentally stimulating work environment.
- Opportunity to work with a big team of experienced, committed, talented people with a great sense of humour.
- Stability of a legacy company and agility of a startup - best of both the world.
- A healthy work environment with no politics, no bureaucracy.
- Encouraged to learn new skills, grow together, not just maintain the status quo
So, if you have 3+ years of experience developing applications with Ruby on Rails, apply today!










