
Simpl (Fintech of the year - 2020) is a platform that empowers retailers to grow by building long term trusted relationships with their customers, one transaction at a time. For consumers, Simpl provides frictionless access to e-commerce, trust, safety and effortless budgeting, in 1-click.
Under the hood, we are building the payments infrastructure (identity, trust score and security) ground up for a world that is mobile first, where consumers frequently buy on the go & love convenience.
Everyone at Simpl is an internal entrepreneur who is given a lot of bandwidth and resources to create the next breakthrough towards a new world of Networked Commerce where commerce is easy, safe, affordable without fine prints & just Simpl!
Simpl was founded in 2015 by Nityanand Sharma and Chaitra Chidanand, and went live in 2016.
Role Summary:
We’re looking for polyglot developers who love to code. You should have >4 years of experience building high-quality products. You should have the ability to write clean code and must’ve worked on Ruby on Rails

About Simpl
About
Simpl has revolutionized online checkout in India by creating a Pay-Later platform, empowering e-commerce merchants to offer their consumers a 1-click checkout, a line of credit at POS, and full buyer protection. It aims to empower merchants to own their customer's checkout experience. With Simpl merchants are able to provide consumers with an easy, safe, and intuitive user experience that builds a trusted relationship between the two.
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At BigThinkCode, our technology solves complex problems. We are looking for a talented engineer to join our technology team at Chennai.
This is an opportunity to join a growing team and make a substantial impact at BigThinkCode. We have a challenging workplace where we welcome innovative ideas / talents and offers growth opportunities and positive environment.
Below job description for your reference, if interested please share your profile to connect and discuss.
Company: BigThinkCode Technologies
URL: https://www.bigthinkcode.com/
Job Role: Software Engineer / Senior Software Engineer
Experience: 2 - 5 years
Work location: Chennai
Work Mode: Hybrid
Joining time: Immediate – 4 weeks
Responsibilities
- Build and enhance backend features as part of the tech team.
- Take ownership of features end-to-end in a fast-paced product/startup environment.
- Collaborate with managers, designers, and engineers to deliver user-facing functionality.
- Design and implement scalable REST APIs and supporting backend systems.
- Write clean, reusable, well-tested code and contribute to internal libraries.
- Participate in requirement discussions and translate business needs into technical tasks.
- Support the technical roadmap through architectural input and continuous improvement.
Required Skills:
- Strong understanding of Algorithms, Data Structures, and OOP principles.
- Integrate with third-party systems (payment/SMS APIs, mapping services, etc.).
- Proficiency in Python and experience with at least one framework (Flask / Django / FastAPI).
- Hands-on experience with design patterns, debugging, and unit testing (pytest/unittest).
- Working knowledge of relational or NoSQL databases and ORMs (SQLAlchemy / Django ORM).
- Familiarity with asynchronous programming (async/await, FastAPI async).
- Experience with caching mechanisms (Redis).
- Ability to perform code reviews and maintain code quality.
- Exposure to cloud platforms (AWS/Azure/GCP) and containerization (Docker).
- Experience with CI/CD pipelines.
- Basic understanding of message brokers (RabbitMQ / Kafka / Redis streams).
Benefits:
· Medical cover for employee and eligible dependents.
· Tax beneficial salary structure.
· Comprehensive leave policy
· Competency development training programs.
Job Description:
• Experience in Python (Only Backend), Data structures, Oops, Algorithms, Django, NumPy etc.
• Notice/Joining of not more than 30 days.
• Only Premium Institute- Tier 1 and Tier 2.
• Hybrid Mode of working.
• Good understanding of writing Unit Tests using PYTest.
• Good understanding of parsing XML’s and handling files using Python.
• Good understanding with Databases/SQL, procedures and query tuning.
• Service Design Concepts, OO and Functional Development concepts.
• Agile Development Methodologies.
• Strong oral and written communication skills.
• Excellent interpersonal skills and professional approach Skills desired.
What We’re Looking For:
- Strong experience in Python (5+ years).
- Hands-on experience with any database (SQL or NoSQL).
- Experience with frameworks like Flask, FastAPI, or Django.
- Knowledge of ORMs, API development, and unit testing
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
- Experience of using Python/ Django frameworks in building back end for Full Stack Applications
- Hands on experience on Web frameworks, Restful APIs and SOAP
- Strong command on SQL (or relevant query language or ORM queries)
- Knowledge of front-end technologies such as React Native, React.js, Angular.js or Javascript

● work directly with the product team to understand requirements, help formulate aggressive growth plans, and then translate that into an effective technical solution
● design and create services and system architecture for your projects
● participate in brainstorming sessions and contribute ideas to our technology, algorithms
and products
● dive into difficult problems and successfully deliver results on schedule
What will your day look like?
1. Own all services and tools
2. Develop and deploy required services responsible for the evolution of the overall product
3. Do server-side development in golang/python preferably (or any other language)
4. Deploying stuff in production in docker containers
5. Write tests
6. Invent awesome stuff to make your job easier
What are we looking for?
1. Motivation to design and build reliable, elegant backend services
2. Energy to build smart internal tools quickly
3. At least 1-2 years of backend development experience
4. Proficiency in golang is desired. We are open to you learning on the job.
5. Familiarity with SQL. Experience with Postgres, Redis is preferred.
6. Familiarity with message-oriented middleware like rabbitmq, google pubsub is preferred.
Responsibilities:
- Crawl the internet/intranet for issues people are facing and convert them in to stuctured data that would be consumed downstream.
- Familiar with the software development life cycle (SDLC) from analysis to deployment.
- Comply with coding standards and technical design.
- Adapts structured coding styles for easy review, testing, and maintainability of the code.
- Integrate the developed functionality and/or component into a fully functional system.
- Ensure unit and integration level verification plans are in place and adheres to the great quality of code at all times.
- Actively participate in troubleshooting, debugging and updating current live system.
- Verify user feedback in making the system more stable and easy.
- Work closely with analysts, designers, and other peer developers.
Requirements:
- Bachelor's degree in computer science or equivalent practical experience.
- Understanding of OOPS concepts, Persistence, Threading.
- Good understanding of version control system (GIT).
- Knowledgeable in data structures and algorithms.
- A background in Engineering with sound oral and written communication skills.
- 6+ years of experience working on the server-side.
- Exposure to API designing, scalable architecture, and thorough understanding of systems.
- Great database modeling skills.
- Working knowledge of Databases, both relational (such as PostgreSQL) and in-memory database (such as Redis).
- Good understanding of web stack and how all the pieces fit together.
- Experience with open-source projects.
- Experience in designing interactive applications.
Job requirements
- A strong engineer with excellent Ruby experience working with Ruby on Rails
- Experience with Node.js
- Experience with SQL/nosql databases(Postgresql, cassandra, MongoDB)
- Experience with REST services and API design
- Experience with building the system for scale
- Experience with version control systems (bitbucket, git etc.)
- Experience working with AWS
- Experience with docker/microservices will be an added advantage
- Knowledge of unit & integration testing
- Knowledge of agile development process, jira
- Strong knowledge of algorithms and Data structures
- Basic understanding of the HTTP protocol
- Demonstrated experience working on application development projects and test-driven development. Experience in writing high quality code
- Knowledge of blockchain technology, smart contracts and cryptocurrency will be an added advantage
- Experience in fintech domain will be another added advantage
- Bachelor’s degree in computer programming, computer science, or a related field.
- Fluency or understanding of specific languages, such as Java, PHP, or Python, and operating systems may be required.
- 3+ years of experience with Ruby On Rails.
- Strong Project & Time Management Skills, along with the ability to apply these skills while working independently, or as part of a team.








