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

Job Summary:

We are looking for a highly experienced Senior Full Stack Developer / Technical Lead with strong expertise in .NET technologies and React. The ideal candidate should be comfortable handling multiple projects simultaneously, possess excellent communication skills, and be capable of leading and mentoring a team while delivering scalable, high-quality solutions.

Key Responsibilities:

·       Design, develop, and maintain scalable web applications using .NET (C#, ASP.NET Core, Web API) and React

·       Lead end-to-end project execution across multiple parallel projects

·       Handle project switching efficiently with minimal ramp-up time

·       Participate in architecture, design, and technical decision-making

·       Manage, mentor, and guide a team of developers

·       Conduct code reviews, ensure best practices, and maintain coding standards

·       Collaborate with Product Owners, QA, UI/UX, and Stakeholders

·       Ensure performance optimization, security, and application stability

·       Take ownership of delivery timelines and technical quality

·       Support production issues and provide root cause analysis

Required Technical Skills:

·       Strong hands-on experience in:

o  C#, ASP.NET, ASP.NET Core, Web API

o  React.js, Redux / Context API

o  HTML, CSS, JavaScript, TypeScript

·       Experience with RESTful APIs, Microservices (preferred)

·       Database expertise: SQL Server (mandatory), NoSQL (added advantage)

·       Experience with Entity Framework / Dapper

·       Familiarity with Azure / AWS (preferred)

·       Knowledge of CI/CD pipelines, Git, DevOps practices

·       Understanding of Agile / Scrum methodologies

Leadership & Soft Skills:

·       Excellent verbal and written communication skills

·       Proven experience in team handling and mentoring

·       Strong problem-solving and decision-making abilities

·       Ability to manage multiple stakeholders and priorities

·       Ownership mindset and accountability-driven approach

Nice to Have:

·       Experience working in product-based or fast-paced service environments

·       Exposure to high-availability and scalable systems

·       Client-facing experience

Job Title: Senior Java Full Stack Developer

Locations: Delhi NCR, Hyderabad, Chennai, Pune, Bangalore Experience: 6–13 Years

Employment Type: Full-Time

"Need Immediate joiners or serving notice period candidates only can join in a maximum of 30 days"

About the Role

We are looking for an experienced and highly skilled Java Full Stack Developer with strong backend expertise in Java and hands-on experience in ReactJS for front-end development. The ideal candidate will drive the design, development, and implementation of high-performance, scalable applications that meet business goals.

Key Responsibilities

Backend Development (Approx. 80%)

• Design, develop, and maintain robust and scalable backend services using Java, Spring Boot, and related frameworks.
• Build and optimize RESTful APIs and microservices.
• Collaborate with cross-functional teams to define backend architecture and ensure high availability and performance.
• Troubleshoot complex issues, debug code, and improve overall system reliability.
• Participate in code reviews, design discussions, and technical decision-making.

Frontend Development (Approx. 20%)

• Develop responsive user interfaces and reusable ReactJS components.
• Integrate frontend components with backend services and APIs.
• Ensure high performance, cross-browser compatibility, and seamless user experience.

General

• Work in an Agile/Scrum environment and deliver high-quality software on schedule.
• Maintain robust documentation and follow SDLC best practices.
• Mentor junior developers and contribute to team growth.

Required Skills & Qualifications

• 6–13 years of professional experience in software development, with a strong focus on backend systems.
• Advanced proficiency in Java, Spring Boot, and related server-side technologies.
• Hands-on experience with ReactJS and modern JavaScript.
• Solid understanding of REST APIs, microservices architecture, and web services.
• Strong database skills (SQL and/or NoSQL) and familiarity with schema design.
• Experience with version control (e.g., Git) and CI/CD practices.
• Excellent problem-solving, debugging, and communication skills.

Preferred Skills (Bonus)

• Experience with containerization and orchestration (Docker, Kubernetes).
• Exposure to cloud platforms (AWS, Azure, GCP).
• Knowledge of message queuing (Kafka, RabbitMQ).
• Familiarity with automated testing frameworks and best practices.

Education

• Bachelor’s or Master’s degree in Computer Science, Engineering, IT, or a related field (or equivalent practical experience)

About TechMango:

My name is Riyas banu M, and I'm reaching out to you regarding an exciting opportunity with TechMango.

Founded in 2014, TechMango Technology Services is a leading software development company with a strong focus on emerging technologies. Our primary goal is to deliver strategic solutions that align with our business partners' technological needs.

We specialize in providing custom software solutions using the best available technologies, ensuring quality delivery within defined timelines. Our services include analysis, design, architecture, programming, testing, and long-term technical support, all aimed at achieving ultimate customer satisfaction.

Recognized as the Best Offshore Software Development Company in India, TechMango is driven by the mantra, "Clients' Vision is our Mission." We strive to be a technologically advanced and highly regarded organization, offering high-quality and cost-efficient services while fostering long-term client relationships.

We operate in the USA (Chicago, Atlanta), UAE (Dubai), and India (Bangalore, Chennai, Madurai, Trichy, Coimbatore).

For more information, please visit our

website.https://www.techmango.net/

Techmango | Digital Transformation Solutions | IT Consulting

We provide cutting-edge technology solutions based on digital, Business Analytics, Cloud, Big Data, IoT, Blockchain, Managed IT Services & Technology

Senior Full Stack Engineer (.NET + UI)

We are hiring a Senior Full Stack Engineer with 5 -7 years; experience with strong expertise in C#, .NET, SQL, Git, and front-end technologies like Angular or React. The ideal candidate should have good English communication skills and a solid understanding of secure coding.

principles to prevent common vulnerabilities such as SQL Injection, XSS, and CSRF.

What is expected of you:

As part of the job, you will be required to

• Participate in requirements analysis
• Write clean, scalable code using .NET programming languages.
• Design and manage databases with SQL and interact with data through Entity Framework
• Build intuitive and responsive user interfaces using front-end frameworks like Angular or React.
• Test and deploy applications and system,Revise, update, refactor, and debug code
• Improve existing software use Git for version control and collaboration in a team environment.
• Develop documentation throughout the software development life cycle (SDLC)
• If your beliefs resonate with these, you are looking at the right place!
• Accountability Finish what you started
• Communication Context aware, pro-active, and clean communication
• Outcome High throughput
• Quality High-quality work and consistency

Requirements:

• C# and .NET Framework Strong hands-on experience with object-oriented programming and enterprise-grade .NET applications.
• SQL Entity Framework Proficient in writing complex queries and working with ORM frameworks.
• UI Technologies Working experience with modern front-end frameworks such as Angular or React.
• Asynchronous Programming Understanding and Implementation of async/await patterns for performance optimization.
• Version Control Experience using Git, Bitbucket etc for source code management.
• Design Patterns Solid understanding and practical application of standard software design patterns.
• Unit Testing Experience with testing frameworks such as NUnit or xUnit to ensure code quality and reliability.
• Secure Coding Principles Awareness and application of secure coding practices to prevent vulnerabilities such as SQL Injection, Cross-Site Scripting (XSS), and Cross-Site Request Forgery (CSRF), etc.

Good to have skills:

• Exposure to Cloud Platforms, Azure, AWS, etc.
• Good Communication Skills
• Excellent knowledge of SDLC.
• Knowledge of Jira.

Thanks & Regards,

M.Riyas banu

Techmango Technology Services Pvt Ltd

 Job Description 

We are looking for a full stack developer 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. As a full-stack developer, you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility. If you’re also familiar with Agile methodologies, we’d like to meet you. 

REQUIRED SKILLS

• Strong Web API & Application development experience - React/Angular/Vue. (Php/Python background is good to have) 
• Hands-on with REST API standards & ORM modelling 
• Experience in API gateway & Serverless functions implementations. 
• Experience in PWA, offline & real-time data modelling 
• Solid work experience with UI application development using standard patterns (MVC/MVP/MVVM) 
• Experience developing desktop and mobile applications (Responsive designs) 
• Experience in AWS App Sync & Amplify frameworks 
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery) 
• Knowledge of multiple back-end languages (e.g. Node.js, .Net Core, Python) and JavaScript frameworks (e.g. React, Vue.js & Angular) 
• Familiarity with databases (e.g. MongoDB, MySQL, Cassandra, AWS Dynamo DB, Azure Cosmos Db), web servers (e.g. Nginx/Apache/AWS/Azure containers) and UI/UX design 
• Excellent communication and teamwork skills 
• Great attention to detail 
• Organizational skills 
• An analytical mind 
• Degree in Computer Science, Statistics or relevant field 

Desired Skills 

• GraphQL / Apollo server integration 
• Ability to understand Hybrid or cross-platform applications using IONIC, React Native, Flutter 
• Ability to develop any test tools in Mac/Desktop 
• Experience with communication and messaging applications 
• Experience with security software and solutions 
• Experience in Python / JavaScript is good to have Responsibilities 
• Develop modular, reusable components for projects with industry-grade coding skills. 
• Ensure Project/Solution is implemented with full OOAD & design patterns methodologies 
• Design and build applications primarily for Web platform. 
• Ensure the performance, quality, and responsiveness of applications 
• Collaborate with a team to define, design, and ship new features 
• Identify and correct bottlenecks and fix bugs, Help maintain code quality, organization, and automatization

Responsibilities:

• Collaborate with cross-functional teams to design, develop, and deliver robust and scalable web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js).

• Translate user requirements and wireframes into ecient and responsive front-end components while ensuring high performance and usability.

• Develop and maintain server-side logic using Node.js and Express.js, ensuring smooth integration with the front-end components.

• Design and implement data models, schemas, and queries for MongoDB, and manage database interactions effectively.

• Write reusable, testable, and efficient code following best practices and coding standards.

• Perform unit and integration testing of both front-end and back-end components to ensure reliability and quality of the application.

• Troubleshoot, debug, and resolve issues that arise during development, testing, and deployment phases.

• Stay up-to-date with industry trends and technologies, and proactively suggest improvements to enhance application performance, security, and maintainability.

• Participate in code reviews, provide constructive feedback, and mentor junior developers when necessary.

• Contribute to the continuous improvement of development processes, tools, and methodologies.

We are now looking for,

Senior SW Developer – IoT Platform Development

to join the team of experts at the KONE Services & Solutions R&D. You will work together with other professionals to develop advanced KONE digital solutions that leverage the latest in cloud and connectivity technologies.

You are a cloud development expert who is passionate about designing and implementing solutions for our connectivity solutions. You are familiar with the software development patterns and can turn the architectural plans to concrete SW designs. You understand and appreciate the modern SW development practices. You work at your best when you are working with people, and you enjoy helping others.

You will work in a key role inside our Agile SW development team. Your closest colleagues will be other developers, test professionals and the PO of the team. You will be part of KONE Technology and Innovation unit’s IoT Tribe.

Main responsibilities include,

• Producing more efficient software designs for new features in our IoT platform tribe
• Developing clean and efficient code based on the specifications.
• Unit and Integration Testing for the developed code and integrate with code coverage tools.
• Verify and deploy programs and systems
• Recommend and execute improvement for the existing offerings from the IoT platform.
• Create technical documentation for reference and reporting.
• Participating in knowledge sharing and demos

To be successful in this role,

• Having a degree in Computer Science or equivalent with minimum 5+ years of relevant working experience.
• More than 3 years proven experience in developing high volume scalable cloud solutions utilizing platforms like Amazon AWS with IoT domain.
• Having hands on development experience with Java, Node JS and TypeScript.
• Experience working with MVC, WEB API, RESTful services with IoT domain

• Team player with capabilities to take the lead and develop own competencies around the core knowledge is a must.
• Understanding of React JS is an added advantage.

• Strong experience with Serverless Cloud Compute Services with AWS or Azure

• Experience in working with AWS platform and its core services like Lambda, CloudWatch, CloudFormation, CDK, SQS, S3 etc., or its equivalent Azure services
• Understanding of Serverless design, network security, cloud design patterns, high availability and secure systems.

• Hands on experience with both SQL and No-SQL databases.
• Experience on DevOps ways of working with good understanding on CI/CD