



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
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Who we are:
Software is the connective tissue for much of the information economy. At Sudoviz, we are making it super easy for companies to build and operate secure software. Sudoviz is an Application Security Posture Management platform for the enterprise AppSecurity and software development teams. We're a covid-era, fully remote startup transforming the way enterprise software teams do security.
About you:
• We're looking for someone scrappy, hungry, and eager to take on the challenge as a Backend Engineer on our Platform Engineering Team.
• An ideal candidate has strong programming experience and has experience in architecting and building highly scalable systems.
• You are energetic and enthusiastic about learning and teaching.
• You understand and uphold the values and company culture as well as possess a positive mindset and a can-do attitude.
• You should be willing to contribute across all elements of the technical stack while working on our Platform
Minimum qualifications:
• 2+ years of professional backend software development experience
• Experience designing and implementing highly scalable and performant RESTful micro-services using GraphQL
• Proficiency in Python web and data science libraries (flask, Django, pandas, numpy)
• Fluency in database technologies (e.g. RDBMS, NoSQL, and Graph Databases - Neo4j)
• Experience with Version control like Git
• Experience using AWS, Kubernetes, and Docker containers
• Agile/Scrum/Lean development methodology experience
Must have
• Bachelor's degree in Computer Science
• Good project management skills and documentation skills
• Proficiency in Written and Verbal communication
• Positive solution-oriented mindset
• Ability to achieve consensus with peers and clearly share status updates
• Self-motivated and Self-managing individual
• Clearly and concisely communicate about complex technical, architectural problems
Nice to have
1. Passion for Open source contribution
2. Experience in peak performance organizations/product companies
3. Experience working with a remote team with a global culturally diverse team


We are seeking an experienced Senior Backend Engineer to join our passionate team. If you have a strong background in backend development, a track record of delivering scalable and reliable solutions, and are eager to contribute to complex projects, we would love to hear from you.
Responsibilities:
- Design and develop robust, high-performance backend solutions using Python and related technologies.
- Lead the architecture and design discussions for major backend components and services.
- Collaborate closely with cross-functional teams to gather and analyze software requirements.
- Mentor and guide junior and mid-level engineers, fostering their technical growth.
- Review code and provide constructive feedback to ensure code quality and adherence to best practices.
- Identify and address performance bottlenecks, scalability challenges, and technical issues.
- Participate in sprint planning, task estimation, and agile development processes.
- Keep up-to-date with industry trends, tools, and best practices to continuously improve our backend systems.
- Drive the adoption of coding standards, design patterns, and engineering best practices.
- Collaborate with frontend engineers to ensure seamless integration between frontend and backend components.
Requirements:
- Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).
- Minimum of 4 years of professional experience in backend development.
- Strong proficiency in Python and backend frameworks like Django and Flask.
- In-depth knowledge of database systems, both relational (MySQL) and NoSQL (MongoDB, etc. ).
- Proven track record of designing and developing scalable and maintainable backend services.
- Experience with RESTful API design and best practices.
- Solid understanding of software architecture, design principles, and software development lifecycle.
- Previous experience leading or mentoring engineers is a strong plus.
- Strong problem-solving skills and a proactive attitude towards challenges.
- Excellent communication skills, both verbal and written.
- Familiarity with cloud platforms (e. g., AWS, Azure, GCP) and containerization (Docker) is a plus.
● Design and deliver scalable web services, APIs, and backend data modules.
Understand requirements and develop reusable code using design patterns &
component architecture and write unit test cases.
● Collaborate with product management and engineering teams to elicit &
understand their requirements & challenges and develop potential solutions
● Stay current with the latest tools, technology ideas, and methodologies; share
knowledge by clearly articulating results and ideas to key decision-makers.
Requirements
● 3-6 years of strong experience in developing highly scalable backend and
middle tier. BS/MS in Computer Science or equivalent from premier institutes
Strong in problem-solving, data structures, and algorithm design. Strong
experience in system architecture, Web services development, highly scalable
distributed applications.
● Good in large data systems such as Hadoop, Map Reduce, NoSQL Cassandra, etc.. Fluency in Java, Spring, Hibernate, J2EE, REST Services Ability to deliver code
quickly from given scenarios in a fast-paced start-up environment.
● Attention to detail. Strong communication and collaboration skills.

Roles and responsibilities:
- 3+ years of experience in GoLang development
- Strong knowledge of the Go programming language with an object-oriented programming model.
- Experience and proficiency in building multithreaded applications in Golang is mandatory.
- Implementing REST API interfaces and database operations, with unit & integration testing
- Understanding of Go Routine and Channel patterns.
- Knowledge of Go frameworks and tools.
- Experience with dependency management tools such as Go Modules.
- Experience with Stringer, Gos code generation tools
- Understanding of Gos templating language
- Understanding of Popular Go web frameworks, such as Revel
- Ability to write clean and effective Go doc comments.
- Familiarity with AWS services integrations (i.e. Lambda, API Gateway etc)
- Understanding the fundamental design principles behind a scalable application
- Excellent analytical, problem-solving skills and programming skills
- Demonstrated ability to define and drive adoption of software development best practices, standards, processes, and methodologies.
- Strong communication skills, both verbal and written, and the ability to listen effectively.
- Working with the team to manage, optimize and customize multiple applications.
- Creating and maintaining technical documentation.


➢ Must have great ability to create RESTful webservices in SpringBoot
➢ Great to have knowledge and experience in PL/SQL
➢ Great to have exposure into React 17+/MaterialUI
➢ Exposure into Load Balancing using Nginx
➢ Exposure into Docker
➢ Exposure into Fusion
Knowledge, Skills and Attributes:
➢ Good verbal, written communication skills and interpersonal skills
➢ Ability to work in late evening shifts to overlap with the counterparts in US
➢ Demonstrate a positive attitude
➢ Display a level of integrity
➢ Immediate joining
➢ Experience of minimum 5 years
➢ Handle things individually, ready to start off



Job Brief
Primary Responsibilities:
- Obtaining in-depth understanding of design and implementation of existing software product
- Performing all phases of software engineering including requirements analysis, design, estimation, and development & testing
- Applying innovation and creativity in design and implementation of features
- Designing reusable components, frameworks and libraries
- Troubleshooting production support issues post-deployment and come up with solutions as required
- Follow the processes defined by the project manager and the organization
General Requirements
- 2+ years of experience in full-stack development in python based technologies.
- Experienced in relational database technologies
- Good in data structures and algorithms
- Good written and verbal communication skills
- Self motivated and willing to learn new technologies
- Experience in AWS cloud technologies is plus
Technologies
- Python, Django
- Angular
- JavaScript, HTML, CSS technologies
- Must understand AJAX and REST

We are looking for 2-3 years experienced Django Developer to join immediately in Delhi.
Responsibilities
As a Backend Developer, you will be responsible for -
- Building the Complete Backend of our web application and Mobile App from scratch.
- Work closely with the Frontend Engineer to integrate the algorithmic input from the Frontend Framework.
- Work closely with the product owners to create dynamic infographics with intuitive user controls.
- Participate in UAT, troubleshoot, bugs and application integration issues
- Optimize applications for best user experience
- Create and maintain documentation related to the developed processes and applications
Qualification & Experience
- 2-3 years of demonstrable experience designing, building, and working as a Django Developer for enterprise web application
- Ideally, this would include the following:
- Expert-level proficiency with Python, Django, and Django Rest Framework.
- Understanding of REST concepts and interacting with REST APIs
- Understanding of Postgresql
- Basic Understanding of Frontend Framework like React.js
- Deep understanding of a few Backend concepts:
- Familiarity with Elastic Search and AWS Technology
- Familiarity with Apache and Ngnix etc.
- Understanding of Python coding Standards
- In addition, the ideal candidate would have great problem-solving skills and familiarity with code versioning tools such as Github
Location:- Delhi

Job Description:-
- Php Developer Skills Required.
- Good working knowledge on Core PHP.
- Strong knowledge of MVC Framework and knowledge of Laravel.
- Good working knowledge of JavaScript & JS frameworks, preferably jQuery.
- Strong knowledge of MySQL databases & OOPS concepts.
- Strong knowledge of ORM and query builder.
- Knowledge of queue scheduling and task scheduling.
- Strong knowledge of Artisan commands.
- Hands on experience of service providers and create new service providers in the application when needed.
- Integration of user-facing elements developed by front-end developers.
- Build efficient, testable, and reusable modules.
- Solve complex performance problems and architectural challenges.
- Write well designed, testable, efficient code by using best software development practices.
- Integrate data from various back-end services and databases.
- Create and maintain software documentation.
- Knowledge of Rest APIs.
- Knowledge of the payment gateway integration (PayPal, PayUMoney, CC Avenue etc.)
- Good knowledge of wallet integration (Paytm, Phone-Pe, Amazon) etc.
- Proficient understanding of code versioning tools, such as Git is mandatory.
- Ability to debug the code and resolve the issues.
Key Responsibilities:-
- Build reusable code and libraries for future use.
- Participate in the full lifecycle of the projects.
- Optimize application for maximum speed and scalability.
- Ability to work independently and within a team environment.
- Assist in troubleshooting any production issues.
- Working within an existing code base and also writing code from scratch.
- Good team player -collaborate with other team members and stakeholders.
- Commitment to meet corporate goals and tight deadlines.
Key Skills:- HTML, CSS, Bootstrap, jQuery, JavaScript, PHP, Core PHP, knowledge of MVC framework, database, MySQL, Laravel Framework, Rest APIs, 3rd party tool integration, OOPs programing concept.
Experience:- 3+ Years’ experience.
Education Qualification:- B.E./B.Tech. /MCA or equivalent in computer science or a related field.

Hands -on experience with the following technologies is needed:
- Good Knowledge of Python & Django Framework.
- Experience in Git or any Version control systems.
- Experience in SQL Databases like MySQL and PostgreSQL.
- Knowledge of NoSQL Databases like Mongodb.
- Worked on Django based live projects.
- To implement microservices using Django rest framework.
- Handling various technical aspects like coding of modules using the given design specifications
- Debugging and fixing the defects as well as analyzing its root cause.
- Deployment(AWS) and monitoring of the live project.
- Mentoring junior developers.
Knowledge/Experience of AWS will be a big plus
Preferred Qualifications:
B-Tech-IT/B-Tech -CSE/BCA or any degree in the relevant field
Required Experience:
3 – 6 Years




