11+ Web performance optimization Jobs in Chennai | Web performance optimization Job openings in Chennai

The key skills and expertise needed are:

1. eCommerce/Retail experience can be optional but needs to have experience with any high volume customer facing web/mobile site

2. Web Development, Front End Development, AND In the browser performance profiling

3. Java, Spring Boot, React, Node, Redux, Webpack, Microservices, AND experience with AWS technologies to make the overall application stack more resilient

4. Performance Profiling of web/mobile experiences and experience with working in CICD environment

5. Experience working with Web based and mobile ecommerce sites or similar public facing websites with high customer volume

6. Needs to be able to work at the code level doing performance profile to evaluate how the website and associated digital platform is built to find performance improvement opportunities

We are seeking a highly skilled and experienced Full Stack Developer with a strong background in product engineering. The ideal candidate will have hands-on experience in Java Spring Boot, Kafka, PostgreSQL, and REST API development. You will be working in a collaborative, cross-cultural environment, contributing to the design, development, and deployment of scalable software products.

Key Responsibilities

Design, develop, test, and maintain high-quality software solutions across the full stack.

Build and implement RESTful APIs to support frontend and backend services.

Collaborate with cross-functional teams across different cultures and time zones.

Work closely with product and engineering teams to understand requirements and deliver features.

Ensure code quality, performance, and scalability.

Participate in code reviews and knowledge-sharing activities.

Required Skills & Qualifications

5–6 years of experience as a Full Stack Developer.

Proven experience in Java Spring Boot development.

Proficiency in Kafka for real-time data streaming and messaging.

Strong knowledge of PostgreSQL and database design.

Experience in designing and implementing REST APIs.

Background in product engineering and working on scalable software platforms.

Excellent verbal and written communication skills.

Experience working in multi-cultural and global team environments.

Nice to Have (Preferred)

Experience with frontend frameworks (e.g., React, Angular, Vue).

Familiarity with CI/CD pipelines and DevOps practices.

Cloud platform experience (AWS).

- Good understanding of NODE JS back-end development

- Strong understanding of Node.js and frameworks available for it

- Understanding of front-end technologies, such as React/Angular, HTML and CSS3
-Solid understanding of object-oriented development and design patterns.

- Good experience with AJAX, REST and JSON

- Experience with development practices such as Test-Driven Development and Continuous Integration
-Experience in Version Control Systems like GIT, Bitbucket
- Must have good problem solving and analytical skills.

- Must be a team player, having good communication skills, self-starter

- Ability to pick up new technology is needed.

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

Roles and Responsibilities:

• Developing new user-facing features using React.js
• Developing and implementing highly responsive user interface components using react concepts.
• Writing application interface codes using JavaScript following react.js workflows.
• Experience with RESTful APIs
• Troubleshooting interface software and debugging application codes.
• Create database schemas that represent and support business processes.
• Implement automated testing platforms and unit tests.
• Optimize application for performance and speed.
• Implementation of security and data protection.
• Provide technical support to users.

Skills:

• At least 5 years of experience as a Java Developer or similar role
• Strong expertise in Java programming language and working Knowledge on Back-end technologies such as Spring/Spring Boot.
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Familiarity with database technology such as MySQL, MongoDB.
• Good knowledge of Unit Testing.
• Experience with at least one of the Cloud Services such as AWS, GCP, Azure are plus.
• Familiarity with SCRUM methodologies
• Strong organizational and project management skills.
• Excellent verbal communication skills.
• Analytical and logical skills
• Good problem-solving skills.

Qualification:

• 3-4 years of experience working as a ReactJS Developer or in a similar role.

What we offer:

• Flexible working hours
• Up to 12 Lakh insurance
• Work life balance

Title/Role: Python Django Consultant

Experience: 8+ Years

Work Location: Indore / Pune /Chennai / Vadodara

Notice period: Immediate to 15 Days Max

Key Skills: Python, Django, Crispy Forms, Authentication, Bootstrap, jQuery, Server Side Rendered, SQL, Azure, React, Django DevOps

Job Description:

• Should have knowledge and created forms using Django. Crispy forms is a plus point.
• Must have leadership experience 
• Should have good understanding of function based and class based views.
• Should have good understanding about authentication (JWT and Token authentication)
• Django – at least one senior with deep Django experience. The other 1 or 2 can be mid to senior python or Django
• FrontEnd – Must have React/ Angular, CSS experience
• Database – Ideally SQL but most senior has solid DB experience
• Cloud – Azure preferred but agnostic
• Consulting / client project background ideal.

Django Stack:

• Django
• Server Side Rendered HTML
• Bootstrap
• jQuery
• Azure SQL
• Azure Active Directory
• Server Side Rendered/jQuery is older tech but is what we are ok with for internal tools. This is a good combination of late adopter agile stack integrated within an enterprise. Potentially we can push them to React for some discreet projects or pages that need more dynamism.

Django Devops:

• Should have expertise with deploying and managing Django in Azure.
• Django deployment to Azure via Docker.
• Django connection to Azure SQL.
• Django auth integration with Active Directory.
• Terraform scripts to make this setup seamless.
• Easy, proven to deployment / setup to AWS, GCP.
• Load balancing, more advanced services, task queues, etc.

Job description

• Participate the development process;
• Cooperate with QA team;
• Recognize opportunities to improve code efficiency;
• Perform code peer-to-peer reviews;
• Contribute to software architecture planning;
• Maintain code and documentation integrity and organization;
• Help project owner in estimating new features;
• Keep up with emerging trends and technologies;
• Accurately match UI/UX design;
• Participate in various team-buildings and non-development activities (Risks identification, Threats Modeling, etc.)
• Build reusable components.

Requirements:

• 4+ years of commercial experience;
• Strong knowledge of JavaScript (ES5, ES6+), HTML5, CSS3;
• Good understanding of CSS Preprocessors, such as LESS and Sass;
• Experience with React/Redux is a must;
• Experience with TypeScript;
• Upper-Intermediate English;
• Strong knowledge in Node.js (Express);
• Experience working in an Agile environment (Scrum or Kanban);
• Experience with build tools, code coverage, and testing frameworks Webpack, jest etc.;
• Experience with SQL and NoSQL databases PostgreSQL, MongoDB;
• Strong Knowledge with Rest API;
• Proficient understanding of code versioning tools such as Git;
• Experience with Redis, ElasticSearch.

Nice to have:

• Experience with CI/CD;
• Experience with serverless, FaaS and PaaS (AWS Lambda);
• Understanding of SDLC and ISMS.

Position : Full-stack developer

Work Experience : 2 to 6 Years

Work Location : Chennai

Skills Required: Java, HTML , CSS ,Angular,Springboot

Job Requirements:

• Experience in Core Java and J2EE
• Good hands-on experience in working with Spring, Hibernate Frameworks.
• Should have working experience on Web Services, and Database design.
• Working knowledge of HTML 5 ReactJS is needed.
• Knowledge in NOSQL databases and analytics will be an advantage.
• Analyze, Design & develop features in product
• Code review of team members/peers

Role Description:

• Lister is actively engaged with client across digital transformation and engineering
• As a part of this engagement, you will be working with our clients on solution design and architecture, technology decisions, while co-ordinating technical efforts for the team
• As a Technical Lead:, You will need to collaborate with Solution Architects define technology
• roadmap, evaluate/recommend technologies, architect and design solutions, Work
• with other developers to oversee the development and implementation
• You will translate functional requirements from business stakeholders to the technical
• team for implementation
• You will need to troubleshoot design flaws and system bottlenecks
• You will have to be hands-on with code reviews and evaluate implementation for performance and scale
• Manage communication between our clients and internal teams in India and USA
• Coordinate with the offshore team to deliver projects across work streams, Identify risks, issues and blockers to progress and mitigate them for the team
• Rapidly gain an understanding of project requirements and drive execution
• Work with delivery team to ensure the highest quality of materials are being produced and all client needs are met.

Skills Required:

• Excellent understanding of backend and frontend components in the following stack: NodeJS, TypeScript, Javascript, ReactJS, multiple RDBMS and NoSQL databases like Postgres, MySQL, MongoDB Experience of working on AWS services (Lambda, Step functions, SQS, S3 SNS)
• Microservice design pattern is a must
• Experience in Docker, Kubernetes, containerization and CI/CD pipelines is preferable
• Experience in software development tools like Prettier, CodeCov, Snyk, etc..
• Excellent verbal and written communication skills; client facing and interpersonal skills; must be a listener, a presenter, and a people-person
• Experience in Designing scalable architecture systems for Node-based applications
• Ability to grasp complex implementations; Proven results of delivering client solutions
• Should have experience of working with offshore team
• Experience in working on large scale technology transformation projects for product companies is preferable
• Technology contributions to open source projects will be an added advantage
• Should have completed Certifications or training on AWS (AWS Solutions Architect), NodeJS, front-end frameworks.