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

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 .NET Developer

Location: Coimbatore

Experience: 7+ Years

Employment Type: Full-time

About the Role

We are looking for a highly skilled Senior .NET Developer with strong expertise in backend development using C# .NET Core and cloud platforms like Azure. The ideal candidate should have a solid understanding of modern front-end frameworks and experience building scalable, high-performance web applications.

Key Responsibilities

• Design, develop, and maintain applications using C# .NET Core.
• Build and deploy services on Azure Cloud (Web Jobs, Blob Storage, Functions, App Services).
• Work on database design, stored procedures, and SQL performance tuning.
• Develop responsive front-end components using React or Angular.
• Implement and maintain REST APIs and microservices architecture.
• Collaborate with teams using Git (GitHub/GitLab) for version control.
• Contribute to Agile development cycles and DevOps CI/CD pipelines.

Required Skills

• C# .NET Core (Strong hands-on experience)
• Azure Cloud Services – Web Jobs, Blob Storage, Functions, App Services
• SQL Server – Database design, stored procedures, performance tuning
• React or Angular – JavaScript/TypeScript
• REST API & Microservices Architecture
• Git/GitHub/GitLab
• Agile & DevOps Practices (CI/CD, Azure DevOps)

Why Join Us?

• Work with cutting-edge technologies
• Collaborative and innovative work culture
• Opportunities for continuous learning and growth

Senior AI Engineer — Ruby on Rails

Techjays · Coimbatore / Chennai · Hybrid · Immediate – 30 Days Notice

About Techjays

We're the AI Reimagination Company — and that's not a tagline we put on a deck. It's what we actually do.

Techjays helps global enterprises rebuild the way they operate using AI at the core: not as a pilot, not as a feature, but as a foundational layer across products, workflows, and infrastructure. We're an Anthropic partner, which means our engineers get early access to frontier models and tools before they hit the market.

Our team includes engineers and leaders from Google, Akamai, NetApp, ADP, Cognizant Consulting, and Capgemini. We run like a high-agency startup, but we build production systems that real enterprise clients depend on.

Every project is greenfield. Every line of code you write ships.

What This Role Actually Is

This isn't a "keep the monolith alive" job.

You'll be designing and building new AI-powered features, integrating LLM APIs into production Rails applications, and using Claude Code as a core part of your daily workflow — not as an experiment. You'll work directly with US-based enterprise clients alongside Product Managers, AI Business Consultants, and Delivery Excellence Managers.

Your architecture decisions will have visible business impact.

What You'll Own

• Design, build, and maintain production-grade Ruby on Rails applications for US enterprise clients — from architecture to deployment
• Integrate LLM APIs (Claude, GPT-4, Gemini) into the Rails stack, building AI-powered features that drive real business outcomes
• Use Claude Code daily as your AI development partner — for generation, debugging, documentation, and velocity
• Build responsive, performant React front-ends from wireframes and design specs
• Own RESTful and GraphQL API design for client applications and third-party integrations
• Drive database design and optimisation — schema, queries, indexing, and migrations on PostgreSQL/MySQL
• Lead code reviews and raise the technical bar through constructive feedback
• Document architecture decisions, API contracts, and implementation patterns

Must-Haves

• 6+ years of deep, production-grade Ruby on Rails experience — advanced framework patterns, background jobs (Sidekiq/Redis), design patterns, best practices
• Hands-on experience with Claude Code (Anthropic) for AI-assisted development — this is central to how we build
• Strong React skills — hooks, component architecture, state management, wireframe to production
• Expert-level PostgreSQL/MySQL — schema design, query optimisation, indexing, performance tuning
• Proven experience designing RESTful and GraphQL APIs at scale
• Experience integrating third-party LLM APIs (OpenAI, Anthropic, Google Gemini) into production Rails apps
• Strong software architecture fundamentals — MVC, service objects, design patterns, testability
• Deep comfort with Git, Gitflow, and PR-based collaboration workflows

Good to Have

• Python for scripting, automation, or backend service integration alongside Rails
• AWS familiarity — EC2, S3, RDS, Lambda — for deployment and infrastructure
• MongoDB or NoSQL in polyglot persistence architectures
• Vector databases (Pinecone, pgvector, Weaviate) for LLM application development
• LangChain, LangGraph, or similar orchestration frameworks for AI agents
• SaaS multi-tenancy patterns and high-traffic web application experience
• Open source contributions or a strong public GitHub profile

Why Join Techjays

• Claude Code is standard practice here, not a side experiment — you'll use it every day to ship faster and smarter
• Anthropic partner access — early visibility into frontier AI tools and capabilities before the market sees them
• Greenfield only — you'll design architecture, not inherit technical debt
• Global client exposure — your engineering decisions translate directly to measurable business outcomes for US enterprise clients
• Team pedigree — you'll learn alongside engineers who've shipped at real scale at Google, Akamai, and NetApp
• AI is the product here, not a feature. You'll spend your career at the intersection of software engineering and AI systems

What We're Looking For Beyond the Resume

• Builder mindset — you think in systems, not tickets
• Ownership — you take features from idea to production
• Structured thinking in ambiguous, fast-moving environments
• Clear communicator, collaborative team player

What We Offer

• Competitive compensation
• Hybrid work — Coimbatore office or remote flexibility
• Paid holidays and flexible time off
• Medical insurance for self and family (up to ₹4 Lakhs per person)
• Opportunity to work on production-grade AI systems for global clients
• A culture built on clarity, integrity, and continuous growth

Location: Coimbatore / Chennai — Hybrid Notice Period: Immediate to 30 days preferred

Job Title: Full Stack Developer

Job Description:

We are looking for a skilled Full Stack Developer with hands-on experience in building scalable web applications using .NET Core and ReactJS. The ideal candidate will have a strong understanding of backend development, cloud services, and modern frontend technologies.

Key Skills:

• .NET Core, C#
• SQL Server
• React JS
• Azure (Functions, Services)
• Entity Framework
• Microservices Architecture

Responsibilities:

• Design, develop, and maintain full-stack applications
• Build scalable microservices using .NET Core
• Implement and consume Azure Functions and Services
• Develop efficient database queries with SQL Server
• Integrate front-end components using ReactJS
• Collaborate with cross-functional teams to deliver high-quality solutions

We are seeking talented and motivated Full Stack Web Developer to join our team. The ideal candidate should have hands-on experience in front-end, back-end, databases, and cloud deployment. You will be responsible for designing, developing, and maintaining scalable web applications, working closely with cross-functional teams in a fast-paced environment.

Responsibilities

• Design and develop responsive front-end applications using modern frameworks (React.js / Angular / Vue.js).
• Build and maintain RESTful APIs / GraphQL services using Node.js, Express, Django, or similar.
• Develop robust back-end systems with focus on performance, scalability, and security.
• Work with databases (MySQL, PostgreSQL, MongoDB, etc.).
• Deploy and manage applications on cloud platforms (AWS / Azure / GCP).
• Collaborate with designers, product managers, and DevOps engineers in an Agile environment.
• Write clean, reusable, and testable code following best practices.
• Debug, troubleshoot, and optimize application performance.

Required Skills

• Front-end: React.js / Angular / Vue.js, HTML5, CSS3, JavaScript (ES6+).
• Back-end: Node.js / Express.js / Django / Spring Boot.
• Databases: MySQL, PostgreSQL, MongoDB.
• Version Control: Git, GitHub, GitLab.
• Cloud Deployment: AWS / Azure / GCP.
• CI/CD basics and DevOps awareness.

Preferred Skills (Good to Have)

• TypeScript for scalable front-end development.
• Experience with Docker / Kubernetes.
• Familiarity with microservices architecture.
• Test automation (Jest, Mocha, Cypress).
• Exposure to Agile/Scrum methodologies.

Eligibility

• B.E / B.Tech / M.E / M.Tech / MCA / M.Sc (IT/CS).
• 2–5 years of experience as a Full Stack Developer.
• Strong problem-solving and analytical skills.

.

Key Responsibilities:

Full-Stack Development:

• Engage in end-to-end development activities, from requirements gathering to deployment, ensuring high-quality deliverables.
• Perform hands-on development using a mix of technologies including Angular 13+, Java / Springboot, Fast API, and SQL.
• Collaborate with cross-functional teams to integrate front-end interfaces with back-end services and databases.

Team Leadership & Collaboration:

• o Work closely with the Tech Lead / Solution Architect and Product Manager to help design and implement scalable and robust solutions leveraging Angular 13+, Java / Springboot, Microservices, Fast API, Java Reactive Programming, and SQL.
• Assist in driving the architectural vision, ensuring alignment with business goals and provide technical guidance, participate in code reviews, and ensure adherence to best practices and coding standards.
• Evaluate and recommend technologies and tools to optimize system performance, security, and reliability.

Databases & Data Management:

• Demonstrate expertise in working with databases such as MongoDB, PostgreSQL, Azure Blob Storage, Neo4j (GraphDB is a plus), and Azure CosmosDB.
• Design efficient database schemas, optimize query performance, and ensure data integrity and security.

Cloud Platform & Infrastructure:

• Proficiency in Microsoft Azure, including the deployment, management, and optimization of cloud-based solutions.
• Experience with containerization, orchestration, and Kubernetes Lens for managing containerized applications.

Tools & Collaboration:

• Utilize tools such as GitHub for version control, JIRA for project management, Confluence for documentation, Keycloak for identity and access management, and other relevant tools to streamline development and collaboration processes.

Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• 5+ years of hands-on experience in full-stack development.
• Strong expertise in Angular 13+, Java / Springboot, Microservices, Fast API, Java Reactive Programming, SQL.
• Proven experience with databases including MongoDB, PostgreSQL, Azure Blob Storage, and Azure CosmosDB.
• Strong communication and collaboration skills.
• Experience with Agile development methodologies.
• Understanding of the Microsoft Azure cloud platform and associated services.
• Relevant certifications (e.g., Azure / AWS Certifications etc.;) are a plus.

Job Title: Senior Full Stack Developer 

Location: Chennai / Coimbatore 

Position Type: Full-Time 

About Us: 

At Justo Global, we are dedicated to empowering Small and Medium Enterprises (SMEs) around the world through our primary driver’s technology, data, and media. Our primary objective is to establish a global platform that effectively connects SMEs from India, developing countries, and beyond to the international market. Our mission revolves around creating an inclusive environment where SMEs can leverage the power of technology, data, and media to drive their success. 

What We’re Looking For: 

Minimum 5 - 8 years of work experience in Software application development. 

• 3+ Years of experience as a full stack developer with experience in the design and implementation of UI using React.js. 
• 5+ Years of experience in developing APIs using Node.js, and having experience with Golang will be an added advantage. 
• Proven experience in React design guidelines, SDK, and excellent JavaScript skills. 
• Experience working with SQL and NoSQL-based databases such as Oracle, MySQL, PostgreSQL, MongoDB. 
• Familiarity with API security models including but not limited to OAuth, JSON Web Token, Digital Certificates, Basic Authentication, and OpenID. 
• Exposure to DevOps culture with hands-on experience in Jenkins for CI/CD would be an added advantage. 
• Knowledge of containerization utilizing Docker and Kubernetes will be an added advantage. 

Responsibilities: 

• Demonstrate a strong sense of ownership and responsibility with release goals. This includes understanding requirements, technical specifications, design, architecture, implementation, unit testing, builds/deployments, and code management. 
• Ensure compliance through the adoption of enterprise standards and promotion of best practice / guiding principles aligned with organization standards. 
• Build and maintain the environment for speed, accuracy, consistency, and ‘up’ time. 
• Hands-on position requiring strong analytical, architectural, development, and debugging skills that includes both development and operations. 
• Developing front-end website architecture and designing user interactions on web pages, ensuring the responsiveness of applications. 
• Developing back-end APIs and creating servers and databases for functionality. 
• Working alongside graphic designers for web design features. 
• Designing and developing APIs meeting both technical and consumer needs. 

The Team: 

You will be part of an exciting talent group, where we have a dynamic team of engineers to solve the many challenges and puzzles of our rapidly evolving technical stack. We’re seeking a Senior full stack developer who is ready to work with new technologies and architectures in a forward-thinking organization that’s always pushing boundaries. This person will have complete, end-to-end ownership of projects. The ideal candidate has experience building products across the stack and a firm understanding of web frameworks, APIs, databases, and multiple back-end languages. The full stack developer will join a small team that uses new technology to solve challenges for both the front-end and back-end architecture, ultimately delivering amazing experiences for global users.