
About koolio.ai
Website: www.koolio.ai
koolio Inc. is a cutting-edge Silicon Valley startup dedicated to transforming how stories are told through audio. Our mission is to democratize audio content creation by empowering individuals and businesses to effortlessly produce high-quality, professional-grade content. Leveraging AI and intuitive web-based tools, koolio.ai enables creators to craft, edit, and distribute audio content—from storytelling to educational materials, brand marketing, and beyond—easily. We are passionate about helping people and organizations share their voices, fostering creativity, collaboration, and engaging storytelling for a wide range of use cases.
About the Full-Time Position
We are seeking a Junior Backend Engineer (Fresher) to join our team on a full-time, hybrid basis. This role is ideal for motivated recent graduates eager to gain hands-on experience in backend development. Working closely with senior engineers, you’ll play a vital role in enhancing koolio.ai’s backend infrastructure, focusing on building, maintaining, and optimizing server-side applications and APIs. This is a unique opportunity to grow within an innovative environment that values creativity and technical excellence.
Key Responsibilities:
- Assist in developing and maintaining backend services and APIs, ensuring stability, scalability, and performance
- Collaborate with the frontend and QA teams to ensure seamless integration of backend systems with user-facing features
- Help troubleshoot and resolve backend issues, working alongside senior developers to enhance system reliability
- Participate in code reviews, learning best practices and contributing to maintaining high code quality standards
- Support in monitoring and improving backend performance metrics
- Document processes, code, and system architecture under guidance to ensure comprehensive, up-to-date technical resources
Requirements and Skills:
- Education: Degree in Computer Science or a related field
- Work Experience: No prior work experience required; internships or academic projects related to backend development are a plus
- Technical Skills:
- Basic understanding of backend systems and APIs
- Working experience in Python
- Familiarity with basic version control systems like Git
- Knowledge of databases (e.g., MySQL, MongoDB) and basic proficiency in SQL
- Understanding of cloud platforms or services like Google Cloud is an advantage
- Soft Skills:
- Eagerness to learn and apply new technologies in a fast-paced environment
- Strong analytical and problem-solving skills
- Excellent attention to detail and a proactive mindset
- Ability to communicate effectively and work in a collaborative, remote team
- Other Skills:
- Familiarity with basic DevOps practices or interest in learning is beneficial
Compensation and Benefits:
- Total Yearly Compensation: ₹4.5-6 LPA based on skills and experience
- Health Insurance: Comprehensive health coverage provided by the company
Why Join Us?
- Be a part of a passionate and visionary team at the forefront of audio content creation
- Work on an exciting, evolving product that is reshaping the way audio content is created and consumed
- Thrive in a fast-moving, self-learning startup environment that values innovation, adaptability, and continuous improvement
- Enjoy the flexibility of a full-time hybrid position with opportunities to grow professionally and expand your skills
- Collaborate with talented professionals from around the world, contributing to a product that has a real-world impact

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1. Proficiency in Python 3.x based web and backend development
2. Solid understanding of Python concepts
3. Experience with some form of Machine Learning (ML)
4. Experience in using libraries such as Numpy and Pandas
5. Some form of experience with NLP and Deep Learning using any of Pytorch, Tensorflow, Keras, Scikit-learn or similar
6. Hands on experience with RDBMS such as Postgres or MySQL
7. Experience building REST APIs using DRF or Flask
8. Comfort with Git repositories, branching and deployment using Git
9. Working experience with Docker
10. Basic working knowledge of ReactJs
11. Experience in deploying Django applications to AWS,Digital Ocean or Heroku
About Us
We began in 2015 with an entrepreneurial vision to bring a digital change in the manufacturing landscape of India. With a team of 1500(1k cluster guys) we are working towards the digital transformation of business in the manufacturing industry across domains like Footwear, Apparel, Textile, Accessories etc. We are backed by investors such as Info Edge (Naukri.com ), Matrix Partners, Sequoia, Water Bridge Ventures and select Industry leaders.
Today, we have enabled 4000+ Manufacturers to digitize their distribution channel.
Roles & Responsibilities
Writing and testing code, debugging programs and integrating applications with third-party web services. To be successful in this role, you should have experience using server-side logic and work well in a team.
Ultimately, you'll build highly responsive web applications that align with our business needs. Write effective, scalable code Develop back-end components to improve responsiveness and overall performance Integrate user-facing elements into applications.
Test and debug programs
Improve functionality of existing systems Implement security and data protection solutions Assess and prioritize feature requests
Coordinate with internal teams to understand user requirements and provide technical solutions Expertise in at least one popular Python framework (like Django, Flask, etc)
Team spirit
Good problem-solving skills
Requirements
1 to 5 years of experience as a Python Developer
Hands on experience of Flask, Django or Gin or Revel or Sanic
Knowledge of design/architectural patterns will be considered as a plus
Experience working in an agile development environment with a strong focus on rapid software development
Experience in AWS or similar cloud technologies
Excellent troubleshooting and debugging skills
Proven ability to complete assigned task according to the outlined scope and timeline
Experience with messaging frameworks such as SQS/Kafka/RabbitMq
Experience with Elastic Search
Willingness to learn new and different technologies
Requirements:
• Should be a go-getter, ready to shoulder more responsibilities, and shows enthusiasm and interest in work.
• Excellent core Python skills including threading, dictionary, OOPS Concept, Data structure, and Web service.
• Should have work experience on the following stacks/libraries: Flask
• Familiarity with some ORM (Object Relational Mapper) libraries
• Able to integrate multiple data sources and databases into one system
• Understanding of the threading limitations of Python, and multi-process architecture Familiarity with event-driven programming in Python
• Basic understanding of front-end technologies, such as Angular, JavaScript, HTML5 and CSS3
• Writing reusable, testable, and efficient code
• Design and implementation of low-latency, high-availability, and performant applications
• Understanding of accessibility and security compliance
• Experience in both RDBMS(MySQL), NoSQL databases (MongoDB, HDFS, HIVE etc) or in-memory caching technologies such as ehcache etc is preferable.
CTC Budget: 35-55LPA
Location: Hyderabad (Remote after 3 months WFO)
Company Overview:
An 8-year-old IT Services and consulting company based in Hyderabad providing services in maximizing product value while delivering rapid incremental innovation, possessing extensive SaaS company M&A experience including 20+ closed transactions on both the buy and sell sides. They have over 100 employees and looking to grow the team.
- 6 plus years of experience as a Python developer.
- Experience in web development using Python and Django Framework.
- Experience in Data Analysis and Data Science using Pandas, Numpy and Scifi-Kit - (GTH)
- Experience in developing User Interface using HTML, JavaScript, CSS.
- Experience in server-side templating languages including Jinja 2 and Mako
- Knowledge into Kafka and RabitMQ (GTH)
- Experience into Docker, Git and AWS
- Ability to integrate multiple data sources into a single system.
- Ability to collaborate on projects and work independently when required.
- DB (MySQL, Postgress, SQL)
Selection Process: 2-3 Interview rounds (Tech, VP, Client)
About OJ Commerce:
OJ Commerce is a fast-growing, profitable online retailer based in Florida, USA with a full-fledged India office based in Chennai driven by a sophisticated, data-driven system to run the operations with virtually no human intervention. We strive to be the best-in-class ecommerce company delivering exceptional value to customers by leveraging technology, innovation and brand-partnerships to provide a seamless & enjoyable shopping of high-quality products at the best prices to our customers.
Responsibilities:
Work with business-stakeholders to understand requirements, prototype, build and deploy it.
CRUD the backend code you own keeping maintenance, performance and security in mind.
Keep up breast of latest technologies and its ecosystem and adopt ones that aid safe product delivery at speed.
Automate the boring and mundane stuff for you prefer to be productive than being busy.
We are flat. Be responsible for professional growth of self and the team.
- Tune application for performance.
- Take initiatives and manage change to work towards business goals at speed without compromising safety.
- Coach full-stack developers on backend skills.
- Provides problem resolution support, specific to application issues, identifies and resolves problems in application software, determines symptoms and ensures accurate problem definition
Develop functional, architectural and other documentation as required for productive functioning of teams.
- Be the brand ambassador for OJ Commerce by speaking at meetups, conferences, etc.
- We are fluid. Be ready for changing dynamics in responsibilities from time to time. Exciting isn't?
- Take the lead in digital transformation of legacy applications.
What you need to shine?
- You have the prior experience in modernising legacy applications.
- You are a passionate hands-on developer with deep experience in building enterprise grade software in Microsoft ASP.NET Core, ASP.NET MVC, Web API, SOA, Micro-Services and RESTful Services with knowledge of SQL Server database.
- You have the ability to see and work on the big picture (Application Architecture) and devilish details (Complex Code).
- Strong experience in developing web applications using C#, VB.Net, .NET, LINQ, Net Framework 4.0, MVC 3/4/5, ASP.NET Web API, .Net Core etc.
- You are Cloud savvy, preferably Google Cloud.
- You have rich experience in Object-Oriented Programming (OOP) with good knowledge of practical design-patterns and its applications.
Hands-on experience in building SOA or Micro-services preferably on .NET Core.
Proven Architectural skills with high standards in Code quality
Knowledge of ReactJS/Typescript would be added advantage.
Practical experience in Agile development methodologies of using CI/CD.
Extreme Programming (TDD) experience is sought after by us.
What we Offer
- Greenfield opportunity to transform legacy backend applications to latest technology stack.
- Fast-paced start-up environment: This is not for the faint hearted; you need grit and passion as much as you need the core skills.
- Work in an interdisciplinary team where learning from one another and developing solutions cross-functionally is a key part of our culture.
- Golden opportunity to make history by making big business impact.
- Competitive salary to take good care of self and family.
- Insurance Benefits: Medical and Accident cover.
- Flexible Working Hours
Job definition
Working at CAST R&D means being an important part of a highly-talented, fast-paced, multi-cultural and Agile team based in Paris (France) and Bangalore (India). The team builds a sophisticated source code analysis platform leveraging parsing, control flow, data flow and others mechanisms to fully understand the inner structure of the complex IT Systems developed and used by the Fortune 500 companies.
You, working as individual contributor as part of team, will contribute to the core part of our platform: source code analyzers. You will contribute to the evolution of our technology to support the latest evolution of languages and frameworks. You will have the opportunity to work on the different parts of the analysis chain from parsing to developing new quality rules notably the ones related to the emerging CISQ standard. Python or C++ will be your main languages.
About your Team
We develop source code analyzers which are plugins of our platform CAST AIP.
Close to customer needs, we deliver incrementally features and fixes according to priorities. Using Lean approach and eXtreme Programming:
• We write user documentation
• We thank our testers to find bugs which enable us to add more unit test coverage.
Profile
The candidate should have a passion for technology and a flexible, creative approach to problem solving.
• Must have at least 4 years of experience
• Must have expertise in Python or C++ development
• Must be pragmatic
• Must have excellent written, oral and telephone communication skills in English.
• Must have strong analytical and logical skills
• Must accept to follow a framework of rules on how to write/design static analyzers
• Hands on TDD addict: writing unit tests.
• Must accept to do a lot of maintenance
• Eager to learn new languages and frameworks at “high” level
Position: Python Developer
Experience: 3-6 years
Location- Pune and Chennai
Job Description:
- 3 years Willing to take efforts to advance in the technology or learn new technologies.
- Solid understanding of OOPs concepts.
- Willing to take efforts to advance in the technology or learn new technologies.
- Good communication skills and a continuous learner.
- Experience working on waterfall or Agile (Agile model preferred)
- Solid understanding of Python scripting and/or frameworks like Django, Flask Back up RRS.
Why join the navy when you can be the pirate?
Get onboard this ship & let's make KYC and onboarding easier than ever!
We want to ensure that our tech is successfully consumed by end users easily.
We are looking forward to work with you.
We would love to have you for the following reasons :
- Strong hold in python based backends such as Flask & Django
- Knowledge of backend principles, patterns, and best practices
- Aware of the open-source ecosystem and the libraries available.
- Proficient understanding of Git
- Must have written Unit, Integration and UI Test Cases
- Understanding of Cloud hosting (AWS,Azure) principles and interface guidelines
- Experience in working with distrubuted data using REST APIs, JSON and other technologies
- Potential interns with experience in containers will hold an advantage.
- Experience in Kafka & ELK will be an advantage.
- Experience of 1-2 years.
About the job
Job Description
We are looking for a Back-End Engineer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your coworkers into the application. A basic understanding of front-end technologies is therefore necessary as well.
Responsibilities
- Develop and Maintain REST API's
- Integration of user-facing elements developed by front-end developers with server-side logic
- Building reusable code and libraries for future use
- Optimization of the application for maximum speed and scalability
- Implementation of security and data protection
- Design and implementation of data storage solutions
- Follow and encourage Test-Driven Development (TDD) Approach
Skills And Qualifications
- Strong foundation and knowledge about Object-Oriented Design Principles
- Champion of the TDD approach
- Implementing automated testing platforms and unit tests
- Proficient in Python programming language
- User authentication and authorization between multiple systems, servers, and environments
- Integration of multiple data sources and databases into one system
- Management of hosting environment, including database administration and scaling an application to support load changes
- Data migration, transformation, and scripting
- Outputting data in different formats
- Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
- Creating database schemas that represent and support business processes
- Proficient understanding of code versioning tools, such as Git
- Understanding accessibility and security compliance








