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Java back end developer
Chennai
3+yrs
3 to 5 years Java,
Sprint Boot, Hibernate,
REST API Design Patterns SQL,
Oracle,
Table design

Job Summary:
We are seeking a highly skilled and experienced Backend Lead to design, develop, and maintain scalable, reliable, and high-performance backend solutions for our multi-tenant SaaS products. The ideal candidate will have a deep understanding of distributed systems, microservices, and cloud-based architectures, with a proven track record in handling production issues at scale. You will collaborate closely with the AI Lead and Frontend Lead to ensure seamless integration of backend services, AI/ML pipelines, and front-end functionalities, thereby
delivering a robust, secure, and feature-rich experience to our customers.
Key Responsibilities:
1. System Architecture & Design
- Define and implement the overall backend architecture for multi-tenant SaaS applications, ensuring scalability, high availability, security, and compliance.
- Design microservices and RESTful/GraphQL APIs and Websockets in alignment with front-end and AI requirements.
- Establish design patterns and best practices for code modularity, performance optimization, and scalability.
2. Scalability & Performance
- Identify performance bottlenecks and oversee optimization strategies (caching, load balancing, message queues, etc.).
- Implement and maintain monitoring/observability solutions (e.g., Prometheus, Grafana, Loki, ELK Stack) to ensure real-time system health insights and rapid incident response.
- Establish performance baselines, conduct stress tests, and implement disaster recovery strategies.
3. Production Stability & Issue Resolution
- Proactively monitor production environments, anticipating potential failures and bottlenecks.
- Triage, diagnose, and resolve production incidents with minimal downtime, using robust logging, tracing, and on-call rotation strategies.
- Drive root cause analysis and post-mortems for production incidents, implementing preventative measures.
4. Collaboration & Cross-Functional Coordination
- Work closely with the AI team to integrate MLOps pipelines, ensuring smooth data flow and secure model deployment.
- Collaborate with the Frontend team to provide well-defined API contracts, enabling efficient UI/UX development.
- Partner with DevOps to define CI/CD pipelines, container orchestration (Docker, Kubernetes), and infrastructure-as-code (Terraform, CloudFormation) practices.
5. Team Leadership & Mentorship
- Lead and mentor a team of backend developers, setting clear goals and providing guidance on best practices.
- Perform code reviews to ensure high code quality, maintainability, and adherence to design standards.
- Foster a culture of continuous learning, encouraging the adoption of new technologies, tools, and methodologies.
6. Security & Compliance
- Implement secure coding practices and follow industry standards (e.g., OWASP Top 10).
- Work with compliance teams to ensure data privacy and regulatory requirements (HIPAA) are met.
- Oversee authentication/authorization frameworks (OAuth, JWT, etc.) and data encryption at rest and in transit(Encryption, SSL/TLS).
7. Documentation
- Maintain comprehensive technical documentation, including architecture diagrams, APIs, database schemas, and operational runbooks.
- Facilitate knowledge sharing sessions and handovers to ensure smooth onboarding of new team members.
Qualifications
Education:
Bachelor’s or master's degree in computer science,engineering, or a related field.
Experience:
- 8+ years of experience in backend or full-stack development, with 3+ years in a technical lead or architect role.
- Demonstrated history of leading and delivering large-scale, distributed systems in production environments.
Technical Expertise:
- Languages & Frameworks: Proficiency in modern backend languages (e.g., Python) and associated frameworks (Django/FastAPI, etc.).
- Database Systems: Strong knowledge of both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB, Cassandra) databases, including data modeling and query optimization.
- Microservices & Architecture: Hands-on experience with microservices,containerization (Docker, Kubernetes), and service mesh architectures.
- Cloud Platforms: Experience with cloud providers like AWS and Azure for deployment, scaling, and monitoring.
- CI/CD & DevOps: Familiarity with CI/CD pipelines, Git workflows,infrastructure-as-code, and automated testing.
- Monitoring & Observability: Proficiency with tools like Prometheus, Grafana, ELK Stack, Loki for real-time monitoring and log analysis.
Soft Skills:
- Leadership: Ability to lead teams, manage conflict, and drive a vision for the backend architecture.
- Communication: Strong written and verbal communication skills to coordinate with cross-functional teams (AI, Frontend, QA, Product).
- Problem-Solving: Analytical mindset for troubleshooting complex issues in high- pressure environments.
- Collaboration: Demonstrated capability to work seamlessly across multiple teams and stakeholders.


Responsibilities :
● Designing and developing robust and scalable server-side applications using Python, Flask, Django, or other relevant frameworks and technologies.
● Collaborating with other developers, data scientists, and data engineers to design and implement RESTful APIs, web services, and microservices architectures.
● Writing clean, maintainable, and efficient code, and reviewing the code of other team members to ensure consistency and adherence to best practices.
● Participating in code reviews, testing, debugging, and troubleshooting to ensure the quality and reliability of applications.
● Optimising applications for performance, scalability, and security, and monitoring the production environment to ensure uptime and availability.
● Staying up-to-date with emerging trends and technologies in web development, and evaluating and recommending new tools and frameworks as needed.
● Mentoring and coaching junior developers to ensure they grow and develop their skills and knowledge in line with the needs of the team and the organisation.
● Communicating and collaborating effectively with other stakeholders, including product owners, project managers, and other development teams, to ensure projects are delivered on time and to specification.
You are a perfect match, if you have these qualification :
● Strong experience in Python and server-side development frameworks such as Flask or Django.
● Experience in building RESTful APIs, web services, and microservices architectures.
● Experience in using database technologies such as MySQL, PostgreSQL, or MongoDB.
● Familiarity with cloud-based platforms such as AWS, Azure, or Google Cloud Platform.
● Knowledge of software development best practices such as Agile methodologies, Test-Driven Development (TDD), and Continuous Integration/Continuous Deployment (CI/CD).
● Excellent problem-solving and debugging skills, and the ability to work independently as well as part of a team.
Strong communication and collaboration skills, and the ability to work effectively with other stakeholders in a fast-paced environment



What we are looking for:
=> Bachelors/Masters degree in Computers/IT or equivalent.
=> 5-8 years of relevant experience in web development.
=> Strong PHP, MySQL & Codeigniter (MVC Framework) hands-on experience (at least 12-15 projects).
=> Database schema design and query optimization.
=> AWS hands-on experience with EC2, ELB, RDS, CloudFront, Lambda, code deploy, etc.
=> Experience with e-commerce platforms, payment gateways will be a big advantage, especially on content-heavy platforms.
=> Hands-on experience and a good understanding of GIT Commands.
=> Good to have experience with the RESTful API.
=> Ability to decipher and write complex database queries for analysis and optimization.
=> Troubleshoot, test, and maintain the core product software and databases to ensure strong optimization and functionality.
=> Understanding of scalability issues and their solutions.
=> Need to be articulate with a good degree of written & oral communication skills.
=> Exposure to UI/UX would be a added value.
=> We are looking for an immediate joiner (within 15 days or less).
=> This role may include night shifts.
Head Office: Koramangala, Bengaluru, Karnataka, India.
Work Location: Work From Home
Working Days: Monday to Friday
Shift & Timming: Regular (09:00 AM to 06:00 PM) / Night (08:00 PM to 05:00 AM)
Working Hours: 9 Hrs


Key Responsibilities:
- SDLC development of product features, enhancements, UAT/production issues.
- Work with development team members for development of product features.
- Client-side and server-side development.
- Develop and manage well-functioning databases and application.
- Write/ design product APIs and write unit test cases.
- Follow standard agile scrum practices for software development.
- Peer review, pull requests, code refactoring and managing source code per standards and ensure quality.
Required Experience & Skills:
- 5+ years of software development experience using Microsoft .Net technology stack.
- Strong experience in .Net, .Net Core, C#, Entity Framework, SQL server, JavaScript, jQuery, etc.
- Experience in using unit test framework e.g., xUnit, Moq.
- Experience in Web API development.
- Experience in Agile / SCRUM development process.
- Good to have experience in Domain driven design development and Microservice architecture.
- Excellent communication and teamwork skills
- Good to have knowledge and experience in ABP.IO framework, Angular 8+, PostgreSQL and AWS cloud service and CI/CD process.
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.


Role & Responsibilities -:
- Strong knowledge of PHP web frameworks such as Laravel
- Knowledge of object oriented PHP programming & Restful API
- Strong knowledge of Akamai CDN, Redis, AWS services
- Understanding of LAMP and MVC design patterns
- Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3, JS
framework
- Knowledge of Payment Gateway
- Familiarity with MySQL/ PgSQL/ Mongo databases
- Proficient understanding of code versioning tools, such as Git
- Understanding accessibility and security compliance
- Understanding fundamental design principles behind a scalable application.
- User authentication and authorization between multiple systems, servers, and
environments
Skills:
- Building and maintenance of applications.
- Extensive understanding of project management processes, principles and
methodologies.
- Writing maintainable and high performance code.
- Keeping up with the trends in technology and being up for challenges.
Qualification:
- B. Tech in Computer Science or Bachelor’s degree in Engineering
- Master’s degree in Computer Applications /M Tec. would be preferred.


Appristine Technologies. We are based in Pune and we are hiring for the following role.
1. PHP Developer – 2+ Years Exp.
Skill:-
- Strong skill level in PHP
- Intermediate skill level in HTML and CSS
- Intermediate skill level in JavaScript or JQuery
- Intermediate skill level in at least one server-side language (i.e. Java, Python, etc)
- Intermediate skill level with relational database systems (i.e. PostgreSQL, MySQL, etc)
- Intermediate skill level with a source control software (i.e. Git, SVN, etc)
- Good understanding of UI/UX design principles
- Strong technical and non-technical communication skills
- Good understanding of object-oriented programming


