Python Developer

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 experienced Full Stack Developers to join our innovative team on a full-time, hybrid basis. As part of koolio.ai, you will work on a next-gen AI-powered platform, shaping the future of audio content creation. You’ll collaborate with cross-functional teams to deliver scalable, high-performance web applications, handling client- and server-side development. This role offers a unique opportunity to contribute to a rapidly growing platform with a global reach and thrive in a fast-moving, self-learning startup environment where adaptability and innovation are key.

Key Responsibilities:

• Collaborate with teams to implement new features, improve current systems, and troubleshoot issues as we scale
• Design and build efficient, secure, and modular client-side and server-side architecture
• Develop high-performance web applications with reusable and maintainable code
• Work with audio/video processing libraries for JavaScript to enhance multimedia content creation
• Integrate RESTful APIs with Google Cloud Services to build robust cloud-based applications
• Develop and optimize Cloud Functions to meet specific project requirements and enhance overall platform performance

Requirements and Skills:

• Education: Degree in Computer Science or a related field
• Work Experience: Minimum of 6+ years of proven experience as a Full Stack Developer or similar role, with demonstrable expertise in building web applications at scale
• Technical Skills:
• Proficiency in front-end languages such as HTML, CSS, JavaScript, jQuery, and ReactJS
• Strong experience with server-side technologies, particularly REST APIs, Python, Google Cloud Functions, and Google Cloud services
• Familiarity with NoSQL and PostgreSQL databases
• Experience working with audio/video processing libraries is a strong plus
• Soft Skills:
• Strong problem-solving skills and the ability to think critically about issues and solutions
• Excellent collaboration and communication skills, with the ability to work effectively in a remote, diverse, and distributed team environment
• Proactive, self-motivated, and able to work independently, balancing multiple tasks with minimal supervision
• Keen attention to detail and a passion for delivering high-quality, scalable solutions
• Other Skills: Familiarity with GitHub, CI/CD pipelines, and best practices in version control and continuous deployment

Compensation and Benefits:

• Total Yearly Compensation: ₹25 LPA based on skills and experience
• Health Insurance: Comprehensive health coverage provided by the company
• ESOPs: An opportunity for wealth creation and to grow alongside a fantastic team

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

Job Description: 

• Experience in Core Java, Spring Boot. 

• Experience in microservices. 

• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns. 

• Should be able to analyze, design, develop and test complex, low-latency client-facing applications. 

• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2 

• Good knowledge of multi-threading 

• Basic working knowledge of Unix/Linux 

• Excellent problem solving and coding skills in Java 

• Strong interpersonal, communication and analytical skills. 

• Should be able to express their design ideas and thoughts. 

Python Engineer

Job Description:

• Design, develop, and maintain scalable and efficient micro-services using

Python and related frameworks (e.g., Flask, FastAPI,pytest).

• Develop Python scripts and tools to automate deployment, configuration

management, monitoring, and maintenance of our systems.

• Design and implement API automation tests to ensure the reliability and

performance of our software products.

• Troubleshoot and resolve issues related to automation processes,

performance bottlenecks, and system failures.

• Integrate backend automation processes with CI/CD pipelines for seamless

deployment and continuous improvement.

• Optimize and refactor code to improve the scalability and maintainability of

frameworks/services.

• Collaborate with cross-functional teams to understand automation

requirements and design scalable, efficient backend automation solutions.

• Stay up-to-date with the latest industry trends, tools, and technologies

related to python backend frameworks.

Job Requirements:

• Bachelor's degree in Computer Science, Engineering, or related field (or

equivalent experience).

• 3+ Years of experience as a Python Developer with a strong focus on

automation.

• Proficiency in Python programming, including experience with libraries such

as Flask, Django, or FastAPI.

• Understanding of software design principles, data structures, and algorithms.

• Experience with database systems, including SQL and NoSQL databases.

• Familiarity with version control systems, preferably Git.

• Knowledge of containerisation technologies such as Docker.

• Experience with cloud platforms (e.g., AWS, Azure, Google Cloud) and

infrastructure as code (IaC) tools.

• problem-solving skills and the ability to debug complex automation issues.

• Excellent teamwork and communication skills.

• Ability to work in an agile development environment and adapt to changing

requirements.

Description:

• Building highly scalable services end-to-end with frontend to handle terabytes of data.

• Finding innovative ideas to solve highly complex engineering problems or best UI/UX experience.

• Own, execute and deliver products/features end-to-end from planning to design to development to deployment

• Be the go-to person for the team for guidance and troubleshooting

• Proactively involved in code reviews, architecture, and design discussions

• Be the mentor to junior engineers or Interns for their deliverables to succeed

• Maintain engineering standards and best practices for coding, code reviews, releases

Required skills:

• 1 to 3 years of expertise in full stack software development with one or more of the general programming languages (e.g., Frontend- Angular, React, TypeScript, Backend- Python, java, C/C++, Go etc.). Experience in Angular with python is recommended.

• Deep understanding of how to build an application with easy integration of RESTful APIs along with good sense of UI designs.

• Knowledge of a how a frontend and backend framework like Angular or Django or similar with ORM or multi-tier, multi-DB-based data-heavy web application development will help your profile stand out.

• Proficiency in (S)CSS, HTML5, Javascript and writing cross-browser compatible code along with CSS framework like Bootstrap.

• Good understanding of RxJS observables and/or Promises, chart libraries like ChartJS or Highcharts.

• Good understanding of bundling modules (Webpack or gulp)

• knowledge of SQL queries & DB like PostgreSQL(must) or MySQL. Working knowledge of NoSQL DBs (Mongo, Redis, etc.) is a plus.

• Understands a programming language's limitation to exploit the language behavior to the fullest potential.

• Understanding of accessibility and security compliances

• Ability to communicate complex technical concepts to both technical and non- technical audiences with ease

• Diversity in skills like version control tools, CI/CD, cloud basics, good debugging skills, and test-driven development will help your profile stand out.

Senior Full Stack Developer (Ruby on Rails, ReactJS) - Mirafra Technologies

We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full stack developers are responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties.

Full stack developers will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail. They are expected to have experience in building web and API based application platforms

Educational Qualification :

            B.E. / B.Tech / from top tier IITs/NITs with at least 4-6 years of experience in full stack  development for Web Applications

Overview :

            Opportunity to work as a Software developer for a content based Progressive Web App in the ed-tech industry. This platform enables creation and consumption of stories in multiple languages with the use of technology to scale creation as well as providing users with content suggestions based on their reading preferences. The project entails development of new features and deployment using a CI/CD model based on requirements from the product team.

The responsibilities would include:

• Developing front end website architecture.
• Designing user interactions on web pages.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Development of new features
• Debugging issues with existing features
• Monitoring application health
• Proactive approach to upgrade technology/plugins, modify architecture etc. to ensure reduction in issues and improvement in platform performance
• Hotfixes and support for L3 tickets raised from end users with highest priority
• Mentoring other members of the team in new and evolving technology tools / paradigms

Must have:

• Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
• Familiarity with JavaScript frameworks such as Angular JS, React, and Amber.
• Strong proficiency in JavaScript, object model, DOM manipulation and event handlers, data structures, algorithms, JSX, and Babel
• Complete understanding of ReactJS and its main fundamentals like JSX, Virtual DOM, component lifecycle, etc.
• Preceding experience with ReactJS workflows like Redux, Create React App, data structure libraries
• Strong understanding of Javascript, ReactJS, HTML, CSS, Ruby and Ruby on Rails
• Strong understanding of scalable, modular, open and robust application / database architecture.
• Strong analytical, problem solving skills for ambiguous high level business / technical issues
• Familiarity with concepts of MVC, ORM, and RESTful
• Understanding of fundamental design principles behind a scalable application
• Able to create database schemas that represent and support business processes
• Hands on Experience with relational databases Postgresql and MySQL
• Solid understanding of object-oriented programming
• Proficient in writing unit and functional tests with RSpec, Capybara
• Familiarity with Couchbase and ElasticSearch (NoSQL DB)
• Able to implement automated testing platforms and unit tests with RSpec
• Proficient understanding of code versioning tools (e.g. Git)
• Familiarity with development aiding tools (such as Bower, Bundler, Rake, etc)
• Familiarity with continuous integration/continuous development (CI/CD) tools and methodologies
• Proficient in verbal and written communication.
• Experience in debugging system performance issues and creating long term solutions for the same would be an added benefit.

Good to have :

• Experience with Cloud services, web servers, load balancers, auto scaling of architecture would be preferred

Video Platform Architect - C/C++

Details

• Location – Pune
• Reporting to – CTO (Shankar Borate)
• Designation : Architect

Educational Background

• Engineering graduate (B.E./B.Tech)

Professional Experience

• 8+ Years of hands on experience in C/C++ Language, Core C language is preferred

Primary Role

• Full ownership of building our video platform using various open source technologies and if required implement our own video technologies

• You will build 1-1, many to many audio and video conferencing, broadcasting system and related features such as recording using open source technologies
• Architect, Develop, implement various features in video platform
• You will need to work in open source frameworks code base, understand nitty-gritty of how its designed and implemented

• Responsible to configure, enhance Coturn, Janus WebRTC gateway OR any other video related open source technologies as per our need
• Responsible for fixing various issues in video platform
• Responsible for integrating Video Platform with Chat Platform and other external platforms including Web and Mobile application
• Work with other engineering team for any video related work
• Responsible for supporting video platform in production environment
• Explore new video related technologies, do POCs
• Help DevOps team deploy the platform in various customer data centers (Aws/Azure cloud and on premises deployments)
• To build micro-services using C language libraries.
• Integrate video platform with other internal systems as well as external customer systems as per business need
• Coach and lead the team technically
• Experience of automating build and deployment process of C/C++ language based products
• Experience of working with video technologies such as WebRTC, Janus, Kurento, Jitsi etc.
• Strong experience of architect and design of core software product
• Experience of working on Android, iOS and UI technologies

Secondary Role

• Training engineering team on Video technologies
• Ensure DevOps practices are implemented in products that help manage the DevOps well
• Build good understanding of product features
• Participate in technical support call rotation

Other Skills:

• Excellent understanding of Software Architecture, design and development fundamentals
• Excellent understanding of how open source technologies can be tuned for solving our business problem and if requires enhance the same
• Automate the build and deployment process of C/C++ based software products
• Explore and Build in-depth understanding of video technologies  
• Enhance video platform for scalability, performance and video quality. You will need to think in-depth of how video and audio technologies work and figure out way to implements our business flows in such a way that end system solve core business need
• Write micro-services in C language. Integrate external services in existing platform
• Strong understanding of operating system and networking concepts
• Strong debugging and problem solving skills
• Strong understanding of data structure and algorithmic skills
• Ensure Systems are up 24x7
• Participate in technical support
• Travel to customer place to resolve deployment related issues
• Somebody who can think out of box and believe in building excellency in whatsoever he do

Personality and attitude traits

• Problem Solver – We like people who understands and solves problem in best possible way
• Team Player – We believe in team outcome that helps company and team grows along with individual
• Passionate about work – We like people who like to work, and want their work to mean something
• Self-starter and motivator – We do not believe in monitoring or tracking team members
• Eager and quick to learn – If you are not excited to learn new things, then tech companies are not for you
• Tech savvy – If you are not tech savvy yourself, then tech companies are not for you
• Individual contributor – We are a small team, and everyone has hands on contribution
• Startup savvy – We are a startup in every possible sense, and like people who like to work in startups
• Eager to grow – We are a small team, and want to have people to grow into larger roles as the company grows