
Come be a part of one of the most exciting e-learning startup! A product based company building a B2C subscription product for kids around the world. Best understood as a combination of Netflix + Skillshare + Instagram for kids of ages 5 - 15, there is going to be something new every week to work on!
Already present in over 148 countries, kids of all backgrounds, languages and ages use DIY.org on website, iOS and Android. DIY is a place online where kids truly discover themselves.
We are looking for a Product Engineer - Senior Backend Engineer to join our early stage startup with experience in building B2C products.
If you have experience of working in product based companies (preferably startups), and are looking to build exciting things that children across the world will use - come talk to us!
What you get to do:
- Design and build advanced applications from scratch keeping scalability and performance in mind
- A good handle on both client and server architecture.
- Work on bug fixing and improving application performance.
- Comfortable in owning large scale products and continuously re-evaluating and innovating.
Who are we looking for:
- Experience of 7+ years across product based companies
- Should have worked on building B2C products. Having experience in building edtech products would be a major plus.
- Should be an avid programmer with great problem solving skills.
- Should have a great grasp over NodeJs/Typescript/ AWS microservices/DB design/System Design.
- Should have experience in building scalable server-side systems. Should have significant experience in cloud infrastructure and designing databases.
- Should have knowledge of software architecture, system thinking and design patterns.

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Your Impact
- Build scalable backend services.
- Design, implement, and maintain databases, ensuring data integrity, security, and efficient retrieval.
- Implement the core logic that makes applications work, handling data processing, user requests, and system operations
- Contribute to the architecture and design of new product features
- Optimize systems for performance, scalability, and security
- Stay up-to-date with new technologies and frameworks, contributing to the advancement of software development practices
- Working closely with product managers and designers to turn ideas into reality and shape the product roadmap.
What skills do you need?
- 4+ years of experience in backend development, especially building robust APIS using Node.js, Express.js, MYSQL
- Strong command of JavaScript and understanding of its quirks and best practices
- Ability to think strategically when designing systems—not just how to build, but why
- Exposure to system design and interest in building scalable, high-availability systems
- Prior work on B2C applications with a focus on performance and user experience
- Ensure that applications can handle increasing loads and maintain performance, even under heavy traffic
- Work with complex queries for performing sophisticated data manipulation, analysis, and reporting.
- Knowledge of Sequelize, MongoDB and AWS would be an advantage.
- Experience in optimizing backend systems for speed and scalability.
We are looking for an experienced Java Developer with strong proficiency in Kafka and MongoDB to join our dynamic team. The ideal candidate will have a solid background in designing and developing high-performance, scalable, and reliable applications in a microservices architecture. You will be responsible for building real-time data processing systems, integrating various services, and ensuring smooth data flow across systems.
Key Responsibilities:
- Design, develop, and maintain scalable Java applications with a focus on performance and reliability.
- Build and maintain Kafka-based real-time data pipelines for handling high-volume, low-latency data.
- Work with MongoDB to design and optimize database schemas and queries for high throughput and availability.
- Collaborate with cross-functional teams to define, design, and implement new features and improvements.
- Troubleshoot and resolve issues related to system performance, scalability, and reliability.
- Ensure software quality through best practices, including testing, code reviews, and continuous integration.
- Implement and maintain security best practices in both code and data handling.
- Participate in agile development cycles, including sprint planning, daily standups, and retrospectives.
Required Skills & Qualifications:
- 7+ years of experience in Java development, with a strong understanding of core Java concepts (J2EE, multithreading, etc.).
- Hands-on experience with Apache Kafka, including setting up brokers, producers, consumers, and understanding Kafka Streams.
- Proficient in working with MongoDB for designing efficient data models, indexing, and optimizing queries.
- Experience with microservices architecture and RESTful APIs.
- Familiarity with containerization technologies like Docker and orchestration tools like Kubernetes is a plus.
- Strong understanding of distributed systems, message-driven architectures, and event streaming.
- Familiarity with version control systems like Git.
- Excellent problem-solving skills, with the ability to debug and optimize code for high-performance systems.
- Experience with CI/CD pipelines and automated testing.
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 2 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.
· 3+ yrs of experience in product development (Preferring SaaS based)
· Must have experience in Java web-based application development
· Hands on development experience on Java/J2EE, Springboot, Spring, Struts, Hibernate, REST Services
· Experience on HTML, JavaScript, JQuery
· Hands on experience on database-writing queries/procedures
· Experience on SVN,GIT,
· Knowledge of Server configuration
· Knowledge of cloud preferably AWS
Overview
At Quizizz, we are building engaging learning experiences for teachers and students. Our mission is to motivate every learner and help them achieve their true potential. We are among one of the fastest-growing Edtech platforms globally and are currently used by 80% of the US schools every month, serving over 70M monthly actives around the world. Our goal is to reach every classroom around the world.
Quizizz has a passionate user base—We have organically reached this scale. Our NPS is 82 and our users love and deeply care about the platform. Check out our https://twitter.com/search?f=tweets&vertical=default&q=quizizz&src=typd" target="_blank">Twitter page to see all the love shared by our users.
We are a venture-backed and profitable company creating a meaningful impact in K-12 education. We are a small, passionate, global team working on challenging problems to improve education. Look forward to using the latest technologies, fast development, and interacting with users to build delightful product experiences.
What the future holds
- You will architect, build, scale, backend system that powers our applications which are loved and used by millions of learners every day.
- You will work closely with a cross-functional team consisting of strategy, design, development, and program managers to determine how to design scalable backend systems and APIs to meet their needs.
- You possess a passion for improving techniques, processes, tracking, and continuously improving our engineering practices.
Requirements
- You will be utilizing technologies like Redis and Websockets to create a high-reliability, low-latency API that will handle massive multiplayer sessions.
- You will be building a database layer using MongoDB to efficiently store/retrieve large amounts of data.
- You will be setting up suitable backup and redundancy measures for maintaining 100% uptime for all our mission-critical services.
- You will be logging all data, and setting up jobs to generate analytics reports that will drive all our decisions.
Benefits
At Quizizz, we have built a world-class team of talented individuals. While we all care deeply about our work, we also ensure that we maintain a healthy work-life balance. Our policies are designed to ensure the well-being and comfort of our employees. Some of the benefits we offer include:
- Healthy work-life balance. Put in your 8 hours, and enjoy the rest of your day.
- Flexible leave policy. Take time off when you need it.
- Comprehensive health coverage of Rs. 6 lakhs, covering the employee and their parents, spouse and children. Pre-existing conditions are covered from day 1, and also benefits like free doctor consultations and more.
- Relocation support including travel and accommodation, and we'll also pay for a broker to find your home in Bangalore!
- Rs. 20,000 annual health and wellness allowance.
- Professional development support. We will reimburse you for relevant courses and books that you need to become a better professional.
- Delicious Meals including breakfast and lunch served at office, and a fully-stocked pantry for all your snacking needs.



About the work from home job/internship
1. Work on backend development
2. Work on application and web development and api development
3. Work on programming languages like JavaScript, PHP, Ruby, Python, Java
4. Work on modern JS frameworks such as React.js, Node.js, and Angular.js
5. Work to implement server-side or application logic, develop databases, and design architectures



