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mern stack developer

Quality Vertex Integrated System Engineering Pvt, Ltd.

We are seeking a MERN Stack Developer to build and maintain scalable web applications using MongoDB, MySQL, Express.js, React.js, and Node.js.Key Responsibilities<ul><li>Develop full-stack web applications using the MERN stack.</li><li>Design and integrate RESTful APIs.</li><li>Develop responsive user interfaces using React.js.</li><li>Work with MongoDB and MySQL databases.</li><li>Maintain, troubleshoot, and optimize existing systems.</li></ul>Required Skills &amp; Experience<ul><li>Strong knowledge of JavaScript (ES6+).</li><li>Experience with React.js, Node.js, and Express.js.</li><li>Experience with MongoDB, MySQL, and Firebase (Push Notifications).</li><li>Experience in payment integrations (Stripe, PayPal).</li><li>Understanding of REST APIs and Git.</li><li>Basic knowledge of authentication (JWT).</li><li>Good problem-solving and communication skills.</li></ul>To apply, please submit your resume to career@qvise.com, please mention job title in subject.Location: KarachiJob Type: Full-timePay: Rs50,000.00 - Rs250,000.00 per monthWork Location: In person

MERN Stack Developer

Bazzle Balloons

Job Title: MERN Stack Developer (4&ndash;5 Years&rsquo; Experience)Location: Karachi Experience: 4&ndash;5 YearsKey Responsibilities:<ul><li>Develop and maintain scalable web applications using MongoDB, Express.js, React.js, and Node.js (MERN stack).</li><li>Design RESTful APIs and ensure efficient communication between front-end and back-end services.</li><li>Participate in the full software development lifecycle: requirement analysis, design, coding, testing, deployment, and maintenance.</li><li>Collaborate with cross-functional teams including product, QA, and UI/UX teams to deliver high-quality solutions.</li><li>Implement architect-level solutions such as modular coding, code reusability, and microservices design patterns.</li><li>Guide and mentor junior developers, ensuring best practices in coding and application architecture.</li><li>Ensure application performance, security, and scalability.</li><li>Troubleshoot and resolve complex technical issues across the application stack.</li><li>Contribute to technical decision-making regarding frameworks, libraries, and tools.</li></ul>Requirements:<ul><li>4&ndash;5 years of experience in MERN stack development.</li><li>Strong knowledge of JavaScript, ES6+, Node.js, React.js, Express.js, and MongoDB.</li><li>Experience in designing RESTful APIs and integrating third-party services.</li><li>Understanding of application architecture, design patterns, and best practices.</li><li>Knowledge of unit testing, version control (Git), and CI/CD pipelines.</li><li>Strong problem-solving skills and ability to work independently.</li><li>Excellent communication and teamwork skills.</li><li>Experience with microservices architecture and modular code design.</li><li>Ability to define system-level architecture and suggest optimizations.</li><li>Knowledge of scalability, high availability, and security best practices.</li><li>Exposure to cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes) is a plus.</li><li>Experience in code reviews, mentoring, and enforcing coding standards.</li></ul>Job Type: Full-timeApplication Question(s):<ul><li>Please mention your completed degree.</li><li>Do you have a hands on experience in Dev OPS Knowledge, Database Administrator, Software Security?</li><li>Do you have a hands on experience in Queues, REDIS, KAFA, Web Socket/SignalR, DLinux, NGNIX, GitHub, Monitoring Tools (PagerDuty), Logs, KIBANA/Grafana/Greylogs/Sentry, S3 Object, API Gateway</li><li>Current Salary</li><li>Expected Salary?</li><li>Notice Period</li></ul>Experience:<ul><li>MERN: 5 years (Required)</li><li>CI/CD pipelines: 3 years (Required)</li><li>microservices architecture : 3 years (Required)</li><li>cloud platforms (AWS, Azure, GCP: 3 years (Required)</li><li>Docker, Kubernetes: 3 years (Required)</li></ul>Work Location: In person

Easy Recruitment PK

We&rsquo;re Hiring: Senior MERN Stack Developer (Karachi)We are looking for an experienced Senior MERN Stack Developer to join our growing team in Karachi.Requirements:&bull;*	Experience: 3&ndash;7 years working with the MERN stack*&bull;*	Strong hands-on expertise in:*o*	MongoDB, Express.js, React.js, Node.js*o*	RESTful APIs and microservices*o*	Frontend performance optimization*o*	Database design and management*&bull;*	Ability to work independently and in a team environment*&bull;*	Good problem-solving and communication skills*Location: KarachiType: Full-timeIf you&rsquo;re passionate about building scalable web applications and want to work in a dynamic environment, we&rsquo;d love to hear from you!Share your CV at cecilia.dsouza@avanzasolutions.com#Hiring #MERNStack #KarachiJobs #SoftwareDevelopment #TechCareersJob Type: Full-timePay: Up to Rs300,000.00 per monthWork Location: In person

Senior MERN Stack Developer

Sidat

Job Title: AI Product &amp; Tools Developer Location: Shahrah-e-Faisal Experience: 1.5-2 Years (Full-Stack background preferred)About the RoleWe are looking for a &quot;System Builder&quot; to bridge the gap between AI models and real-world software. As an AI Product &amp; Tools Developer, you will build Autonomous Agents that don't just talk, but act&mdash;executing tasks, connecting to call centers, and automating complex workflows. You will be the primary link between our AI intelligence and our existing MERN-stack infrastructure.Key Responsibilities<ul><li>AI Agent Frameworks: Build Multi-Agent systems that can use tools to perform business tasks autonomously.</li><li>Voice &amp; Call Center Integration: Connect AI brains to voice APIs (Vapi, Retell, or Twilio) for real-time AI phone agents.</li><li>Workflow Automation: Develop &quot;autonomous workers&quot; to handle data entry, CRM updates, and automated communication.</li><li>System Integration: Create the bridge between AI models and our existing MERN stack and internal dashboards.</li></ul>Technical Requirements<ul><li>Stack: Strong proficiency in Node.js (MERN stack) and Python.</li><li>Integration: Expert-level knowledge of LangChain, n8n, or Make.com.</li><li>APIs: Deep experience in REST APIs, Webhooks, and WebSockets for real-time data flow.</li><li>Deployment: Familiarity with Docker and cloud services (AWS or Azure).</li></ul>Job Type: Full-timeWork Location: In person

AI Product & Tools Developer

Expertizo

Job post summaryDate posted: February 18th, 2026Pay: Up to 1,400,000.00 (PKR) per yearJob description:About ExpertizoExpertizo is a creative technology agency focused on building scalable, high-impact digital products. We value ownership, continuous learning, and open collaboration, and we actively encourage our developers to work with modern technologies, including AI-powered systems and automation.Role OverviewWe are looking for Junior and Mid-Level MERN Stack Developers who are passionate about building modern web applications and have experience in AI integrations and workflow automation.In this role, you&rsquo;ll work on full-stack web applications while also getting hands-on exposure to AI-powered features, such as chatbots, automation workflows, and API-driven intelligent systems.Key Responsibilities<ul><li>Develop, maintain, and enhance web applications using the MERN stack (MongoDB, Express, React, Node.js)</li><li>Build and consume REST APIs for frontend and third-party integrations</li><li>Collaborate with team members on feature development, architecture, and code reviews</li><li>Write clean, maintainable, and well-documented code</li><li>Containerize applications using Docker for local and production environments</li><li>Assist in deploying and maintaining applications on AWS or Google Cloud</li><li>Work closely with designers to build responsive and user-friendly interfaces</li><li>Assist in integrating AI-powered features into applications (chatbots, assistants, automation workflows)</li><li>Stay updated with emerging technologies, especially in AI, automation, and modern web development</li></ul>Required Skills &amp; Qualifications<ul><li>Bachelor&rsquo;s degree in Computer Science or equivalent practical experience</li><li>Minimum 6 months of professional experience in web development</li><li>Strong understanding of JavaScript, HTML, and CSS</li><li>Hands-on experience with the MERN stack</li><li>Experience working with RESTful APIs</li><li>Familiarity with Git / version control</li><li>Good problem-solving and debugging skills</li><li>Strong communication and teamwork abilities</li></ul>Preferred / Plus Skills (Strong Advantage)<ul><li>Experience or exposure to AI integrations, such as:</li><li>OpenAI / LLM APIs</li><li>Chatbots or AI-powered features</li><li>Familiarity with AI orchestration &amp; automation tools, including:</li><li>n8n</li><li>LangChain</li><li>LangGraph</li><li>Flowise</li><li>Understanding of API-based automation workflows</li><li>Exposure to React Native or Flutter</li></ul>What We Offer<ul><li>Competitive salary based on skill level and experience</li><li>Training and mentorship in modern MERN + AI-powered development</li><li>Opportunity to work on real-world AI-integrated products</li><li>Career growth in a collaborative and flexible work environment</li><li>Exposure to emerging technologies and automation platforms</li></ul>How to ApplyApply online at: https://expertizo.pk/apply_software_devJob Type: Full-time(Onsite)Application Question(s):<ul><li>What is your current &amp; expected salary? Failing to address this question will result in rejection.</li></ul>Experience:<ul><li>MERN Stack Development: 1 year (Required)</li><li>AI Integrations: 1 year (Required)</li></ul>Work Location: In personJob Type: Full-timePay: Up to Rs1,400,000.00 per yearWork Location: In person

MERN Stack Developers

Zarai Mandi

Job Title: Web &amp; App DeveloperAbout the RoleSeeking a highly skilled Web &amp; App Developer with full-stack expertise to design, develop, and deliver end-to-end mobile and web applications. The ideal candidate will have experience taking projects from concept to deployment, including web dashboards and admin portals.Key Responsibilities<ul><li>Develop and maintain cross-platform mobile applications using React Native.</li><li>Build full-stack web applications and dashboards using the MERN stack (MongoDB, Express, React, Node.js).</li><li>Work on API integration, backend development, and database management with MongoDB.</li><li>Deploy and maintain applications on AWS or similar cloud platforms.</li><li>Collaborate with UI/UX designers to implement Figma workflows and convert designs into responsive, interactive applications.</li><li>Ensure code quality, performance optimization, and scalability.</li><li>Maintain technical documentation, version control, and testing pipelines.</li><li>Provide end-to-end ownership of projects from architecture, development, testing, and deployment.</li><li>Troubleshoot, debug, and resolve production issues.</li><li>Stay updated on emerging technologies and propose improvements to existing systems.</li></ul>Required Skills<ul><li>Front-End: React.js, React Native, responsive UI development</li><li>Back-End: Node.js, Express.js, RESTful APIs</li><li>Database: MongoDB, data modeling, optimization</li><li>Full Stack: MERN stack experience</li><li>Scoti.io: Typically used for real-time coding evaluations</li><li>Cloud &amp; DevOps: AWS deployment and maintenance</li><li>Design Collaboration: Figma workflow integration, UI/UX collaboration</li><li>Strong problem-solving and troubleshooting: skills are a key requirement, with the ability to independently analyze issues, identify root causes, and implement effective technical solutions.</li><li>Knowledge of and hands-on experience with AI tools for automation, problem-solving, and productivity enhancement.</li><li>Other: Version control (Git), testing frameworks, agile development</li></ul>Experience &amp; Qualifications<ul><li>3&ndash;5 years of experience in full-stack web &amp; app development.</li><li>Proven track record of developing complete apps from scratch to production.</li><li>Strong problem-solving, analytical, and communication skills.</li><li>Experience in dashboard development and data visualization is a MANDATORY</li></ul>What We Offer<ul><li>In-person role at Old Rally Building, I.I. Chundrigarh Karachi.</li><li>Competitive salary with growth opportunities.</li><li>Opportunity to own projects end-to-end.</li><li>Work in a dynamic, innovative environment in the agri-tech / mandi sector.</li><li>Competitive salary and other benefits.</li><li>Daily lunch and tea.</li><li>Post 3 months probation benefits: health insurance, EOBI, provident fund, transport allowance, 25 annual leaves, yearly bonus &amp; increment.</li><li>Timings: Monday&ndash;Friday, 9:00 AM to 6:00 PM</li><li>Flexible work culture.</li></ul>Job Type: Full-timePay: Rs90,000.00 - Rs180,000.00 per monthWork Location: In person

Web & App Developer

Naqdi

Job Title: Full Stack Developer (Backend-Focused &ndash; NestJS &amp; C++)Job Summary: We are seeking a Backend-Heavy Full Stack Developer with strong expertise in NestJS, Node.js, Kafka, and Modern C++ to build scalable, event-driven applications. The role focuses primarily on backend development while contributing to frontend work (React/Next.js) as needed.Key Responsibilities:<ul><li>Design and develop backend systems using NestJS, Node.js, and Kafka (event streaming, producers/consumers).</li><li>Build and maintain RESTful and GraphQL APIs and microservices.</li><li>Design and optimize databases (MongoDB and relational databases).</li><li>Implement real-time systems using Kafka and WebSockets.</li><li>Ensure security standards (JWT, OAuth2, authentication/authorization).</li><li>Deploy and manage applications using AWS, Docker, and CI/CD pipelines.</li><li>Support frontend integration with React.js / Next.js.</li><li>Debug, optimize performance, and ensure system reliability.</li><li>Write clean, testable, and maintainable code.</li></ul>Requirements:<ul><li>Bachelor&rsquo;s degree in Computer Science or equivalent experience.</li><li>2+ years of backend-heavy full stack development (MERN stack).</li><li>Strong experience with NestJS, Node.js, Express.js.</li><li>Hands-on experience with Kafka and event-driven architectures.</li><li>Strong knowledge of MongoDB; SQL databases are a plus.</li><li>Working knowledge of React.js, Next.js, TypeScript (secondary).</li><li>Experience with Docker, AWS, and CI/CD pipelines.</li><li>Strong skills in Modern C++ (C++17+), OOP, and SOLID principles.</li><li>Experience with memory management, multithreading, and performance optimization.</li><li>Exposure to trading systems, APIs, or C#/.NET is a plus.</li><li>Strong problem-solving and communication skills.</li></ul>This is onsite Karachi based positionJob Type: Full-timePay: From Rs150,000.00 per monthApplication Question(s):<ul><li>How much experience do you have with SQL databases? </li><li>How much experience do you have with Nest.Js?</li><li>How much experience do you have with C++?</li></ul>Work Location: In person

Job Title: Full Stack Developer (Backend-Focused – NestJS & C++)

Explore 165+ Mern stack developer in Karachi this February. Find roles across top companies and apply now to boost your career.

165 mern stack developer jobs In Karachi

MERN Stack Developer

MERN Stack Developer

Senior MERN Stack Developer

AI Product & Tools Developer

MERN Stack Developers

Web & App Developer

Job Title: Full Stack Developer (Backend-Focused – NestJS & C++)