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’re Hiring: Senior Full Stack Developer (Python FastAPI & React.js)

📍 Location: Chennai, Tamil Nadu (On-site)

🧠 Experience: 5+ Years

🕒 Employment Type: Full-time

About Lumera Software Solutions

Lumera Software Solutions is a product development–focused organization building technology solutions for world-class supply chain leaders. Our products help global enterprises optimize, automate, and gain real-time visibility across complex supply chain operations.

We design and build scalable, high-performance software used by industry-leading supply chain organizations worldwide, collaborating closely with global stakeholders to solve real, high-impact problems.

Our teams work closely across engineering, design, and product to deliver reliable, well-architected solutions, while collaborating with a globally distributed team across regions and time zones.

🔥 Why This Role Is Different

This role is designed for senior engineers and architect-leaning developers who want to take technical ownership and influence how complex, enterprise-grade systems are built.

You will be building mission-critical product features used by world-class supply chain leaders, working on problems that demand strong system design, scalability, and long-term architectural thinking.

This is a core product development role, not a maintenance or support-driven position.

💼 What You’ll Do

• Act as a senior individual contributor, owning complex, backend-heavy features end-to-end
• Design and develop scalable, production-grade backend services and APIs using Python & FastAPI
• Build and maintain front-end components using React.js, with primary focus on backend-driven functionality
• Participate in system design, architecture reviews, and technical decision-making
• Apply AI-assisted development tools to improve development speed, testing, and code quality
• Collaborate with a globally distributed engineering and product team while working from our Chennai office
• Work closely with databases to design efficient schemas and optimize queries
• Apply strong understanding of DevOps concepts including CI/CD, containerization, deployment, monitoring, and observability
• Mentor engineers through code reviews and design discussions
• Drive improvements in performance, reliability, security, and scalability

🛠️ What We’re Looking For

• 5+ years of hands-on experience in full stack roles with a backend-heavy focus
• Strong proficiency in Python with FastAPI, including API design and performance considerations
• Solid experience building and consuming RESTful APIs at scale
• Good working experience with React.js, JavaScript (ES6+), HTML, and CSS
• Strong understanding of backend architecture, system design, and data modeling
• Good understanding of DevOps concepts such as CI/CD pipelines, Docker, cloud deployments, and monitoring
• Ability to make sound technical trade-offs with long-term maintainability in mind
• Experience mentoring developers or leading by technical example
• Comfortable working in a focused, work-from-office (WFO) product development environment
• Educational Qualification: B.E / B.Tech (Computer Science or related fields)**

➕ Nice to Have (Not Mandatory)

• Experience with cloud platforms (AWS / Azure / GCP)
• Familiarity with Docker and containerization
• Experience setting up or working with CI/CD pipelines
• Exposure to product development teams or building in-house products
• Exposure to AI/ML concepts, data pipelines, or integrating AI services into products
• Experience using AI developer tools to enhance productivity

🎯 What We Offer

• Competitive salary based on skills and impact
• High ownership and visibility of your work
• Fast learning curve with real technical challenges
• A collaborative, no-nonsense engineering culture
• Long-term growth as the company scales

✨ Lumera Software Solutions is an equal opportunity employer. We value talent, ownership, and diversity.

• Full-stack developer good at react.js and node.js. 
• Should be good at algorithms 
• Working experience in AWS is a plus

SKILL AND EXPERIENCE REQUIRED:

• 2+ years of experience in Java skills.
• 2+ years of hands-on HTML5/CSS3 experience.
• Experience with popular JavaScript frameworks such as ReactJs or Angular 2.0; experience preferred.
• Experience of working with HTTP 1.1, and HTTP/2.
• Experience with RESTful APIs and JSON RPC.
• Ability to write clean, bug-free code that is easy to understand and easily maintainable.
• Experience following Git workflows.
• Working knowledge of DevOps tools (e.g., Terraform, Ansible, Jenkins, Kubernetes, Helm and CI/CD pipeline etc.).

We are a registered broker-dealer and ATS (Alternative Trading System) currently building a revolutionary ecosystem to support the issuance and trading of digital asset securities (tokenized securities and other assets). We envision a future where everything is tradeable and have already constructed the technological foundation on which this thesis can develop.

As an SEC and FINRA- regulated company licensed to conduct business in digital asset securities, we are positioned to bridge traditional finance and the digital future, leveraging technology to improve the capital markets for issuers and investors alike.

The Role

We are looking for a Senior Full Stack Developer (React, NodeJS) to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.

Responsibilities

• Perform hands-on software development, including writing code and unit tests, doing proof of concepts, conducting code reviews, and testing in ongoing sprints

• Work closely with product team and other full stack developers to implement innovative solutions to challenging web development problems

• Participates in system design and specifications, program logic and flow-charting, development, testing, debugging, documentation, and support

• Supports new and ongoing digital defi projects, and integration with clients and vendor platforms

• Provides analysis of problems and recommends solutions

Requirements

• 5+ years of experience working in React and able to demonstrate strong JavaScript knowledge

• 5+ years of experience working with NodeJS

• 3+ years of experience working with PostgreSQL and DynamoDB

• Experience with CI and CD environment and AWS platforms

• Proficiency working with Docker

• Experience writing APIs and securing APIs

• Proficiency working with ECS and EKS

• Strong experience in systems architecture design and development

• Strong experience building single-page web applications

• Ability to efficiently manage and build large, complex web applications

• Strong analytical and problem-solving skills, with good attention to detail

• Self-motivated, ability to work independently

• Ability to use creative thinking to develop innovative solutions to business problems

• Strong project management skills, including the ability to manage multiple projects simultaneously

• Ability to mentor other developers

• Ability to work in a fast-paced team environment

About us

404 DM is a fast-growing data-driven creative solutions provider, with a portfolio of brands that include Myntra, Flipkart, and Wildcraft. Our team essentially stands for all things digital with an abundance of creativity. The focus lies in building - right from crafting compelling narratives that capture a brand's essence to the long-lasting relationships that are developed with each and every client, the agency believes that this is the driving force behind the work they do. 404 DM offers a wide variety of services in the digital sphere, including design, technology, media planning, and above all, creative strategizing that helps brands stand out amidst their contemporaries.

We are building this really cool product that will change the way brands do their marketing and acquire customers. We're looking for equally driven and highly skilled people to join us. We'd love to have a conversation with you and see if you and our team are the right fit for each other.

Roles and Responsibilities

• Defines site objectives by analyzing user requirements; envisioning system features and functionality.
• Designs and develops user interfaces to Internet/intranet applications by setting expectations and features priorities throughout the development life cycle; determining design methodologies and toolsets; completing programming using languages and software products; designing and conducting tests.
• Recommends system solutions by comparing advantages and disadvantages of custom development and purchase alternatives.
• Integrates applications by designing database architecture and server scripting; studying and establishing connectivity with network systems, search engines, and information servers.
• Completes applications development by coordinating requirements, schedules, and activities; contributing to team meetings; troubleshooting development and production problems across multiple environments and operating platforms.
• Enhances organization reputation by accepting ownership for accomplishing new and different requests; exploring opportunities to add value to job accomplishments.
• Supports and develops web application developers by providing advice, coaching.
• SADs (Senior application Developer ) maintain the job duties of a supervisor as well as a lower-level application developer These duties can include regular consultations with the Team concerning software, creating new programs, and testing newly installed programs to verify functionality.
• The managerial side of being a leader can include writing reports on team progress and presenting those reports to upper executive committees, per Coding standards. SADs also make executive-level standards decisions for their department, ensure company policies are being followed and counsel employees as needed

Desired Candidate Profile

• Bachelor's or Master's degree in information technology or computer sciences. Combining full - time academics degree with certification in computer languages and software programs could be an added advantage.
• At least 5 to 8 years of experience as a leader with hands-on experience in programming languages such as Javascript, HTML, C++, PHP, Angular, Ajax, Rest Api, Node.Js, JQuery, MySQL, API Oath Integration, Shopify, Open Source app development, Social media Developer tool.

1. Extensive experience in Javascript / NodeJS in the back end
2. Front end frameworks such as Bootstrap, Pug, Jquery
3. Experience in web frameworks like ExpressJS, Webpack
4. Experience in Nginx, Redis, Apache Kafka and MQTT
5. Experience with MongoDB
6. Experience with Version Control Systems like Git / Mercurial
7. Sound knowledge in Software engineering best practices
8. Sound knowledge in RestFul API Design
9. Working knowledge of Automated testing tools
10. Experience in maintaining production servers (Optional)
11. Experience with Azure DevOps (Optional)

1. Experience in digital payments or financial services industry is a plus.
2. Participation in the processes of strategic project-planning meetings.
3. Be involved and participate in the overall application lifecycle.
4. Collaborate with External Development Teams.
5. Define and communicate technical and design requirements, understanding workflows and write code as per requirements.
6. Develop functional and sustainable web applications with clean codes.
7. Focus on coding and debugging.