MERN Stack Developer

Senior Software Developer (AI integration)

Role Overview

We are looking for a Senior Full-Stack Engineer to drive the development, integration, and scaling of our eCommerce applications. This is a hands-on coding role requiring deep expertise in full-stack ecosystems (Laravel + React), proven track record of integrating and deploying AI models/workflows. Strong eCommerce domain knowledge (Shopify and/or Magento 2) would be a plus.

As our product suite heavily prioritizes AI-driven features, you will be the core technical driver responsible for building smart workflows, setting up local LLMs, and bridging the gap between modern AI capabilities and robust web applications.

Work Location: Remote (Open to talent across India; office is based in Indore).

Required Technical Skills:

AI & LLM Integration (Mandatory)

• LLM Implementation: Hands-on experience setting up, fine-tuning, or self-hosting local LLMs (e.g., via Llama, Mistral, Ollama) and utilizing cloud AI APIs (OpenAI, Anthropic, etc.).
• AI Frameworks & Workflows: Experience building custom agentic workflows, prompt engineering pipelines, or using orchestration frameworks (LangChain, LlamaIndex, or JS/PHP equivalents)..
• Vector Databases: Familiarity with embeddings and vector search (e.g., Pinecone, Milvus, Chroma, or pgvector).

Core Full-Stack

• PHP (expert level)
• Laravel (architecture-level understanding: queues, jobs, service layer)
• React.js (SPA, state management, performance optimization)
• HTML, CSS, JavaScript (ES6+)
• GraphQL & REST API design
• Node.js (real-time systems like Socket.io)

Database & Systems

• MySQL/PostgreSQL (schema design, optimization)
• Caching: Redis
• Queue systems: RabbitMQ / similar

Architecture Knowledge

• Microservices & event-driven architecture
• API-first and headless systems
• Scalability & distributed systems

E-commerce Domain 

• Shopify: Deep understanding of Shopify APIs, App ecosystem, and headless commerce.
• Magento 2: Practical understanding of Magento's architecture, module system, and GraphQL (hands-on customization experience is highly valued).

Note: Preference will be given to candidates with experience in any of the two platforms, but we are open to consider candidates who do not have direct exposure to these platforms if they have exceptional track record with AI implementations.

Good to Have

• Experience with Python (often useful for AI/data manipulation scripts).
• Cloud Infrastructure (AWS / DigitalOcean, Cloudflare).
• Familiarity with CI/CD tools and containerization (Docker).

Roles & Responsibilities:

• Hands-on Development: Write clean, maintainable, and highly efficient code across the backend (Laravel) and frontend (React).
• AI Feature Engineering: Own the end-to-end implementation of AI capabilities—from setting up local LLM instances to writing the integration logic that connects AI flows to our eCommerce systems, with a strong focus on optimizing token streaming processing and reducing execution latency
• Feature Ownership: Take high-level product requirements and transform them into concrete technical solutions, ensuring scalable code architecture.
• System Performance: Optimize application speed and reliability, utilizing caching (Redis) and async processing to ensure seamless user experiences.
• Security & Infrastructure: Implement secure coding practices, manage API rate-limiting, and collaborate on Docker/CI/CD pipelines.
• Technical Mentorship: Review code, champion best practices, and help upskill mid-level developers on the team.
• Team Collaboration: Work closely with product, design, and engineering teams. Act as technical decision owner.

Position : Tech Lead – Fullstack Developer

Experience : 7 to 15 Years

Location : MG Road, Bengaluru (Hybrid – 3 Days in Office)

Notice Period : Immediate / Serving / 15 Days or Less

About the Opportunity :

We are hiring a Tech Lead – Fullstack Developer for a well-funded product startup building an enterprise-grade SaaS platform in the Cybersecurity domain.

The role involves designing and delivering scalable microservices and cloud-native applications in a high-performing, Agile engineering environment.

You'll work alongside industry veterans from billion-dollar digital firms, contributing to technical design, product architecture, and engineering best practices.

Mandatory Skills : Java, Spring Boot, ReactJS (or any modern JavaScript framework), RESTful APIs, PostgreSQL, Docker, Kubernetes, CI/CD, Hibernate/JPA, Multithreading, and Microservices architecture.

Role Highlights :

• Lead fullstack product development using Java (Spring Boot) and ReactJS (or similar frameworks).
• Design, develop, test, and deploy scalable microservices and RESTful APIs.
• Collaborate with Product, DevOps, and QA teams in a fast-paced Agile environment.
• Write modular, secure, and efficient code optimized for performance and maintainability.
• Mentor junior developers and influence architecture decisions across the team.
• Participate in all stages of the product lifecycle, from design to deployment.
• Create technical documentation, UML diagrams, and contribute to knowledge-sharing through blogs or whitepapers.

Key Skills Required :

1. Strong expertise in Java (mandatory) and Spring Boot.
2. Proficient in frontend development using ReactJS or similar frameworks.
3. Hands-on experience building and consuming RESTful APIs.
4. Solid knowledge of PostgreSQL, Hibernate/JPA, and transaction management.
5. Familiarity with Docker, Kubernetes, and cloud platforms (Azure/GCP).
6. Understanding of API Gateway, ACID properties, multithreading, and performance tuning.
7. Experience with CI/CD tools (Jenkins, GitHub Actions, GitLab CI) and Agile methodologies.
8. Strong debugging and profiling skills for performance bottlenecks.

Nice to Have :

• Experience with data integration tools (e.g., Pentaho, Apache NiFi).
• Exposure to the Healthcare or Cybersecurity domain.
• Familiarity with OpenAI APIs or real-time analytics tools.
• Willingness to contribute to internal documentation, blog posts, or whitepapers.

Perks & Benefits :

• Opportunity to build a product from scratch.
• Flat hierarchy and direct access to leadership.
• Strong focus on learning, mentorship, and technical innovation.
• Collaborative startup culture with long-term growth opportunities.

Interview Process :

1. Technical Round – Technical Assessment
2. Technical Interview – Core Development
3. Advanced Technical Interview – Design & Problem Solving
4. Final Round – CTO Discussion

Job Title : Senior Salesforce Developer

Experience : 7 to 12 Years

Location : Bengaluru (Remote initially → Hybrid)

Open Positions : 6

Salary Budget : ₹40 LPA Fixed (Up to ₹45 LPA Fixed for exceptional candidates)

Notice Period : 1 Month or Less Preferred

Mandatory Skills : Salesforce development experience with strong hands-on expertise in Apex, Lightning Web Components (LWC), Visualforce, SOQL, Integrations, JavaScript, Salesforce architectural best practices, CI/CD, Agile/Scrum, and Salesforce Certification (mandatory).

⚠ Important : This is not a fully remote role.

The position will be remote for approximately 2 months until the Bangalore office becomes operational, after which it will transition to a hybrid model (3 days/week in office).

Role Overview ;

We are looking for highly skilled Senior Salesforce Developers with strong full-stack Salesforce expertise and hands-on experience in JavaScript.

The ideal candidate will bring deep technical knowledge, leadership capabilities, and a passion for building scalable Salesforce solutions.

Key Responsibilities :

1. Salesforce Solution Design & Development :

• Design and develop high-quality Apex classes, Triggers, Lightning Web Components (LWC), Visualforce pages, Flows, and Integrations
• Work within Salesforce governor limits (SOQL, CPU time, DML operations)
• Build scalable, high-performance solutions aligned with architectural standards

2. Clean Code & Best Practices :

• Follow architectural design patterns and Salesforce best practices
• Champion Test-Driven Development (TDD)
• Write maintainable, extensible, and well-tested code

3. System Design & Scalability :

• Contribute to moderately complex feature design
• Ensure solutions meet non-functional requirements (performance, reliability, scalability)

4. CI/CD & Deployment :

• Work within Agile/Scrum teams
• Implement and manage CI/CD pipelines
• Ensure high-quality, seamless deployments within the Salesforce ecosystem

5. Troubleshooting & Optimization :

• Debug complex Salesforce platform issues
• Perform root cause analysis
• Enhance system stability and performance

6. Collaboration & Leadership :

• Provide technical mentorship to peers
• Participate in and lead code reviews
• Collaborate with distributed global teams (India & US)
• Translate technical concepts for both technical and non-technical stakeholders

7. Documentation & Knowledge Sharing :

• Create feature-level and product-level technical documentation
• Conduct knowledge-sharing sessions
• Support customer escalations with urgency and empathy

Required Skills & Qualifications :

Technical Expertise :

• 7+ years of full-stack Salesforce development experience

Strong hands-on experience in :

• Apex
• Lightning Web Components (LWC)
• Visualforce
• SOQL
• Salesforce Integrations
• Strong JavaScript knowledge (mandatory)
• Additional experience in Java is preferred
• Deep troubleshooting and debugging expertise
• Strong understanding of architectural design patterns

Development Practices :

• Experience with Agile/Scrum methodologies
• Hands-on experience with CI/CD practices
• Commitment to clean code principles
• Experience writing technical documentation

Leadership & Communication :

• Ability to work independently on complex modules
• Experience mentoring developers
• Strong stakeholder communication skills
• Experience influencing cross-functional priorities

Nice to Have :

• Salesforce Certifications (Mandatory – e.g., Platform Developer I/II)
• Experience leading cross-functional initiatives
• Exposure to Manufacturing or Supply Chain domains

Interview Process :

1. Internal Interview (1 hour)
2. Technical Round 1 (Indian Team)
3. Technical Round 2 (US Team)
4. Final Round (Technical + Culture Fit)

Additional Notes :

• Salesforce Certification is mandatory.
• Strong full-stack experience is preferred.
• JavaScript expertise will be highly valued.
• The Bangalore office setup is expected within ~2 months.
• Role transitions from remote to hybrid (3 days/week in office) once operational.

Sr. Software Engineer

Role expects you to

• Design, code, test, debug, deploy Web App and Mobile Apps

• Collaborate with SMEs to resolve Technical Issues and Achieve Goals

• Lead Projects, teams

• Strong problem solving skills

• Open to learn new technologies

Qualification

▪ 4+ years of IT Development Experience

▪ Comprehensive Programming Experience in Web and Mobile app development using

MEAN or MERN stack

▪ Knowledge of Python, Ruby

▪ Knowledge of RDBMS like MS SQL, PostgreSQL, MySQL

▪ Understanding of Dev-Ops Tools like git, Jenkins, Azure Dev-Ops

▪ Exposure Cloud technologies, Agile development process, Estimation techniques

▪ Understanding of End to End Development process

About the job

Key Responsibilities

1. Design, develop, and maintain dynamic, responsive web applications using React.js and Node.js.

2. Build efficient, reusable front-end and back-end components for seamless performance.

3. Integrate RESTful APIs and third-party services.

4. Collaborate with UI/UX designers, mobile teams, and backend developers to deliver high-quality products.

5. Write clean, maintainable, and efficient code following modern coding standards.

6. Debug, test, and optimize applications for maximum speed and scalability.

7. Manage databases using MongoDB and handle cloud deployment (AWS, Firebase, or similar).

8. Participate in code reviews, architectural discussions, and agile development cycles.

Required Skills & Experience

1. 1-5 years of proven experience in Full Stack Web Development using the MERN stack.

2. Proficiency in React.js, Node.js, Express.js, MongoDB, and JavaScript (ES6+).

3. Strong understanding of HTML5, CSS3, Bootstrap, and Tailwind CSS.

4. Hands-on experience with API design, state management (Redux, Context API), and authentication (JWT/OAuth).

5. Familiarity with version control tools (Git, Bitbucket).

6. Good understanding of database design, schema modeling, and RESTful architecture.

7. Strong problem-solving skills and ability to work in a collaborative team environment.

Perks & Benefits

• Onsite opportunity in our modern Greater Noida office.
• Competitive salary based on skills and experience.
• Exposure to real-world projects and latest tech stacks.
• Work with a creative and talented team.
• Career growth opportunities in full-stack and cross-platform development.

Benefits:

• Health insurance
• Leave encashment
• Paid sick time
• Paid time off
• Work from home

Application Question(s):

1. How many years of _____ experience do you have?
2. What is your current CTC?
3. What is your expected CTC?

Job Description

We are building a AI first employee referral product for SMBs that is going to change the way employee referrals are handled. We combine modern web technologies and cloud services to deliver a seamless experience both for the organizations and users .

• What You’ll DoBuild and maintain responsive, accessible UIs using React/Next.js, Tailwind CSS, and ShadCN UI
• Develop and scale backend services in Node.js, exposing clean REST or GraphQL APIs
• Integrate with Firebase and AWS for core functionality
• Collaborate with product and design to translate requirements into production-ready code
• Write clear, maintainable tests (unit, integration, end-to-end) and participate in code reviews
• Leverage AI-assisted tools like ChatGPT (and other productivity tools) to work effectively and solve problems faster
• What We’re Looking For1–2 years of professional full-stack development experience
• Strong proficiency in JavaScript/TypeScript, with hands-on work in React and Next.js
• Comfortable styling with Tailwind CSS and building component systems (e.g. ShadCN UI)
• Solid experience in Node.js backend development and API design
• Familiarity with Firebase services and basic AWS SDK usage
• Good understanding of Git workflows and CI/CD practices
• Ability to pick up new tools and frameworks (“and much more”) as needed
• Excellent communication skills, a collaborative mindset, and a bias for action
• Nice to HaveBasic experience with Docker or containerized deployments
• Exposure to GraphQL or server-side rendering best practices
• Any prior work leveraging AI-powered tooling for development productivity
• What We OfferA chance to shape a core product from the ground up
• Flexible, remote-friendly work environment
• Competitive compensation and learning stipends
• A supportive, knowledge-sharing culture with regular hackathons

What You’ll Be Doing

• 🛠 Write code for web and mobile apps, fix bugs, and work on features that people will actually use.
• 💡 Join brainstorming sessions and help shape our products.
• 🚀 Things move fast here, and you’ll learn as you go.
• 🤝 Work closely with everyone—designers, developers, and even marketing folks.
• 🔧 Diving into Our Tech Stack: React, React Native Node, Express, Python, FastAPI, and PostgreSQL.

What We’re Looking For

We’re not looking for perfection, but if you’re curious, motivated, and excited to learn, you’ll fit right in!

For Backend Engineers

• 💻 Strong knowledge of Python, FastAPI, and PostgreSQL.
• 🔍 Solid understanding of Low-Level Design (LLD) and High-Level Design (HLD).
• ⚡ Ability to optimize APIs, manage databases efficiently, and handle real-world scaling challenges.

For Frontend Engineers

• 💻 Expertise in React Native.
• 🎯 Knowledge of native Kotlin (Android) and Swift (iOS) is a big bonus.
• 🚀 Comfortable with state management, performance optimization, and handling platform-specific quirks.

General Expectations for All Engineers

• 🛠 While you’ll be specialized in either frontend or backend, you should be good enough to fix bugs in both.
• 🔍 You enjoy figuring things out and experimenting until you get it right.
• 🤝 Great communication skills and a collaborative mindset.
• 🚀 You’re ready to dive in and make things happen.

Interview Process

If we like your application, Be ready to:

1. Solve a data structures and algorithms (DSA) problem in your preferred programming language.
2. Answer questions about your specialized area (frontend/backend) to showcase your depth of knowledge.
3. Discuss a real-world problem and how you’d debug & fix an issue in both frontend and backend

Why Join Us?

• 💡 Your work will matter here—no busy work, just real projects with real outcomes.
• 🚀 Help shape the future of our company.
• 🎉 We’re all about solving cool problems and having fun while we do it.

Title

Full Stack MERN/ MEAN Tech Lead

Location

Bangalore

About the company

With over a decade of experience, we specialize in crafting bespoke integration solutions and empowering businesses across the globe with a combined approach to emerging technology. We use cutting edge enterprise platforms - Microsoft, Salesforce, SAP and more Since our establishment in 2004, with our headquarters located in Tampa, USA, eCosmos has been extending global reach and domestic support to a diverse range of organizations, from start-ups to Fortune 500 companies

. Job Summary:

The Lead Developer provides technical expertise which requires a working knowledge of the technical infrastructure underpinning the applications. Plans, consults, and coordinates complex project assignments in the design, development and implementation of applications software. Works as part of a service or project team to implement complex technical solutions that meet business requirements. Responsible for contributing to the planning of the work programs and the review, development, and modification of best practices and technical solutions. Provides supervision to a team of Developers

. What success looks like in this role:

• You will lead a team of 5-10 developers building web apps with React, Node.js, Express and MongoDB, and mobile apps with React Native.

• Architect scalable and high-performance web and mobile apps using proven JavaScript stacks like MERN and MEAN

• Establish best practices for web and mobile development, code quality, testing, and CI/CD

• Proficiency in TypeScript is required to develop and maintain the front-end and back-end of our web applications.

• Plan sprints, assign tasks, and oversee code reviews, testing, and releases

• Troubleshoot and debug applications across the stack

• Manage technical debt and spearhead migrations to new libraries/frameworks when needed

• Hire and mentor developers and promote an engineering culture of learning and excellence.

Skills Required:

• Excellent communication skills, both written and oral.

• Quick problem-solving skills with exceptional aptitude and reasoning. • Good orator, presenter with influencing skills to manage and negotiate complex conflicting resolutions.

• Ability to frame ideas in words to provide a perspective and outcome from analyzing them.

• Experience in leading, managing, mentoring a team of junior developers.

You will be successful in this role if you have:

: • Bachelor's in engineering (B.E or BTech.), MCA.

• 5+ years' experience leading web and/or mobile engineering teams

• Deep expertise with JavaScript, Node.js, React, React Native, and MongoDB • Experience building web apps with MERN or similar stacks • Experience building mobile apps with React Native or similar frameworks

• Excellent verbal and written communication skills

• Comfortable with Agile methodologies like Scrum and Kanban

• Strong leadership skills and commitment to building a world-class engineering team

Compensation & Benefits:

For the right candidate, e-Cosmos is ready to provide an extremely competitive salary and added incentive bonus potential

. e-Cosmos provides an attractive and complete benefits package:

✓ Accidental Death & Dismemberment Insurance

✓ Training and certification assistance

✓ Employee referral bonus program

✓ Vertical and Lateral increments

ETHICS COMPLIANCE:

: e-Cosmos is firmly committed to conducting business in compliance with the letter and spirit of the law and other accepted standards of business conduct as reflected in the company's policies.

• Skills -
  • Core (Must understand and conversant to code on at least two of these technologies)
    • Java 8+/ Spring Boot/Microservices
    • Spark
    • Scala
    • Angular
    • Javascript
    • ElasticSearch
    • Graph Database (Tinkerpop/Janusgraph)
    • MySQL/Oracle
    • AWS/Azure/GCP
  • Secondary
    • Version Control - Jira/Bitbucket/Git
    • Build Tools - Maven/SBT/Gradle
    • Security
    • Agile/Scrum methodology
    • Should be able to create and review designs/documents
    • Must be able to clearly articulate situations, problems and communicate ideas and solutions

• Must understand System Analysis and Design with understanding of Algorithms (implementation in any language is okay)
• Design optimal and performant solutions for product backlog items spanning technologies
• Work with Product Owner/Project Manager and UX lead for providing LoE estimates for Jira backlog items
• Lead and own delivery or work items (for self and team)
• 80% hands-on work items (self), 20% team responsibility
• Must be willing to learn new technologies, processes, business functions, (we measure this by OKR’s)

Qualifications and Skills