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backend developer

Quanrio LLP

This position is for a client and not part of Quanrio&rsquo;s internal hiring.Location: Karachi, Pakistan Experience Required: Minimum 3 yearsJob Description: We are looking for a highly motivated Backend Developer to join our team in Karachi. The ideal candidate will have at least 3 years of professional experience in backend development, with working exposure to AI Large Language Models (LLMs). You will be responsible for designing and implementing scalable server‑side applications, integrating AI/ML features into production systems, and collaborating with cross‑functional teams to deliver innovative solutions.Key Responsibilities<ul><li>Develop, optimize, and maintain backend services and APIs.</li><li>Integrate AI/LLM models into applications for intelligent features such as chatbots, content generation, and recommendation systems.</li><li>Collaborate with data scientists and ML engineers to deploy and scale AI models.</li><li>Ensure system performance, security, and reliability.</li><li>Manage databases, caching, and distributed systems for high‑availability applications.</li><li>Conduct code reviews, write unit tests, and maintain documentation.</li><li>Stay updated with emerging backend and AI technologies.</li></ul>Requirements<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or related field.</li><li>Minimum 3 years of professional experience in backend development.</li><li>Strong proficiency in Node.js, Python, or Java for backend services.</li><li>Experience with frameworks such as Express.js, Django, or Spring Boot.</li><li>Solid understanding of databases: MongoDB, PostgreSQL, MySQL, or SQL Server.</li><li>Exposure to AI/LLM frameworks such as Hugging Face Transformers, LangChain, OpenAI APIs, or similar.</li><li>Familiarity with cloud platforms (AWS, Azure, GCP) and containerization tools like Docker/Kubernetes.</li><li>Knowledge of RESTful APIs, GraphQL, and microservices architecture.</li><li>Experience with CI/CD pipelines, Git/GitHub, and Agile methodologies.</li><li>Strong problem‑solving skills and ability to work in collaborative teams.</li></ul>Job type: Full timeJob Type: Full-timePay: Rs250,000.00 - Rs280,000.00 per monthWork Location: In person

Backend Developer

Ideas Private Limited

<div>
 TitleBackend DeveloperApply beforeDec 19, 2025CityKarachiResponsibilitiesDevelop and maintain backend services using PHP, Laravel, and Node.js.Build and customize Shopify apps/extensions (private &amp; public).Integrate Shopify Plus APIs, Webhooks, and Storefront/Admin APIs.Develop secure and scalable REST/GraphQL APIs.Optimize MySQL queries and backend performance.Troubleshoot and resolve backend, API, and Shopify integration issues.Maintain clean documentation and follow secure coding standards.RequirementsHands-on Shopify app development (Liquid, Admin API, Storefront API, Webhooks).Experience with GraphQL, REST APIs, OAuth, App Bridge.Proficient in MySQL, caching (Redis), and queue systems.Familiar with Git, CI/CD, cloud hosting (AWS/Vercel/Forge).Good understanding of eCommerce workflows.
 
 
 Bachelor's Of Software Engineering or equivalent
 
 
 
 Minimum 6-8 Years Of Experience
 
 
 
 Benefits
 
 
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 Excellent Salary
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 Fuel Allowance
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 Medical Insurance
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 Annual Leaves
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 Provident Fund
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 EOBI
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 Annual Bonus
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 Sick Leaves
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 Casual Leaves
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Systems Limited

<div>Position: Senior Backend Developer (Python/FastAPI + Azure) 
Location: Pakistan

Summary

Python Developer at Systems Limited will be responsible to develop scalable, secure, and well-architected backend systems, and is comfortable working in a fast-paced, cloud-native environment. Strong understanding of architecture, system design and optimizations.
<div>
Responsibilities:</div>
<ul>
<li>Design, build, and maintain RESTful APIs and backend services using Python (FastAPI)</li>
<li>Architect and Implement authentication, session management, and authorization workflows using Azure Entra ID (formerly Azure AD)</li>
<li>Write clean, testable, and well-documented code following best practices</li>
<li>Ensure high availability, security, and performance of backend systems</li>
<li>Collaborate closely with frontend, DevOps, and QA teams</li>
<li>Use Git for source control and follow collaborative branching/review practices</li>
<li>Oversee code review, architecture design and performance tuning.</li>
<li>Derive adoption of best practices in code quality, CI/CD, monitoring and observability</li>
</ul>
<div>Requirements:</div>
<ul>
<li>6+ years of hands-on backend development experience</li>
<li>Proficiency with Python and FastAPI (or similar frameworks like Flask/Django REST)</li>
<li>Strong knowledge of Azure cloud services, especially:</li>
<li><ul><li>Azure Entra ID (OAuth2, SSO, JWT)</li>
<li>Azure SQL, Cosmos DB, Redis</li>
<li>Azure Web PubSub, App Services, and APIM</li>
</ul></li><li>Experience with Git, pull requests, and version control workflows</li>
<li>Strong understanding of secure coding principles and session handling</li>
<li>Experience building scalable and modular backend architectures</li>
<li>Excellent communication, leadership skills.</li></ul></div>

Senior Backend Developer

TechForge Innovations

Location: Gulistan e Johar KarachiShift: Night 9 pm to 6 am.Internship Duration: 3 monthsStipend: Starts from 25,000Requirement: Must Have own LaptopAbout Us:At TechForge Innovations, we build powerful software solutions that help businesses grow and innovate. From web and mobile apps to enterprise systems, our goal is to deliver cutting-edge technology with real-world impact.About the RoleWe are seeking a passionate and driven Backend Developer Intern to join our development team. This role offers hands-on experience in building and maintaining backend systems while working on real-world projects.Responsibilities<ul><li>Develop, test, and maintain backend services and APIs</li><li>Work with databases to design and optimize data models</li><li>Collaborate with frontend developers and other team members</li><li>Write clean, efficient, and well-documented code</li><li>Debug and resolve backend-related issues</li><li>Follow best practices in backend development</li></ul>Requirements<ul><li>Basic to intermediate knowledge of backend technologies (Node.js / Python / Java / PHP)</li><li>Understanding of RESTful APIs</li><li>Familiarity with databases (MySQL, PostgreSQL, MongoDB, etc.)</li><li>Knowledge of Git and version control</li><li>Strong problem-solving skills and willingness to learn</li><li>Own laptop is mandatory</li></ul>Nice to Have<ul><li>Experience with backend frameworks (Express, Django, Spring Boot, etc.)</li><li>Familiarity with authentication, security, and API performance optimization</li><li>Personal or academic backend projects</li></ul>What We Offer<ul><li>Monthly stipend starting from 25,000</li><li>Hands-on experience with live projects</li></ul>Job Type: Full-timePay: From Rs25,000.00 per monthWork Location: In person

Backend Developer - INTERN

Launch Box

Senior Backend Developer &ndash; Join Our Growing Team!Location: Emarah Suites, Main Shahra-e-Faisal, Karachi Timings: 12:00 PM &ndash; 9:00 PM Employment Type: Full-time | On-siteAbout Us: We are a dynamic and fast-growing tech company dedicated to delivering high-quality, scalable, and innovative solutions for our global clients. We value creativity, problem-solving, and a passion for technology.Position Overview: We&rsquo;re looking for a Senior Backend Developer with strong expertise in Node.js and proficiency in multiple backend technologies. You will architect, develop, and maintain scalable APIs, databases, and backend systems, ensuring optimal performance and security.Key Responsibilities: Design, develop, and maintain robust backend systems and APIs, primarily using Node.js. Work with multiple backend languages and frameworks such as Python, PHP, Java, Go, or .NET when required. Collaborate with frontend developers, mobile engineers, and DevOps teams to deliver end-to-end solutions. Optimize applications for maximum speed, scalability, and security. Manage and maintain databases (SQL &amp; NoSQL) including PostgreSQL, MySQL, MongoDB. Implement best practices for code quality, testing, and deployment. Troubleshoot and debug applications, ensuring smooth performance. Mentor junior developers and lead code reviews.Requirements: 3+ years of backend development experience. Strong expertise in Node.js (Express.js, NestJS, or similar frameworks). Experience with RESTful APIs, GraphQL, and microservices architecture. Familiarity with cloud platforms (AWS, Azure, or GCP). Strong understanding of SQL &amp; NoSQL databases. Proficiency in other backend languages such as Python, PHP, Java, Go, or .NET. Knowledge of authentication, authorization, and security best practices (OAuth, JWT, etc.). Experience with Git and CI/CD pipelines. Strong problem-solving skills and attention to detail.Nice to Have: Experience with Docker, Kubernetes, and container orchestration. Knowledge of serverless architectures. Exposure to real-time systems (WebSockets, Socket.io).Job Type: Full-timeWork Location: In person

Senior Backend Developer (Node.js)

TeamX Pakistan

Job Title: Mid-Level PHP Backend DeveloperLocation: Gulshan-e-Jamal (On-site) Employment Type: Full-Time Timings: AfternoonKey Responsibilities<ul><li>Develop, maintain, and optimize backend services, APIs, and server-side logic using PHP.</li><li>Work with frameworks such as Laravel / CodeIgniter to build scalable and efficient backend systems.</li><li>Collaborate with cross-functional teams to understand requirements and deliver clean, efficient solutions.</li><li>Ensure high performance, scalability, and security in all backend components.</li><li>Troubleshoot, debug, and resolve technical issues in existing systems and APIs.</li><li>Write clean, maintainable, and well-documented code following industry best practices.</li><li>Participate in code reviews, technical discussions, and regular sprint planning.</li><li>Integrate third-party services, databases, and internal tools as necessary.</li></ul>Required Skills &amp; Experience<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field.</li><li>2&ndash;4 years of professional experience in backend development using PHP.</li><li>Strong expertise in PHP frameworks (Laravel / CodeIgniter preferred).</li><li>Hands-on experience with REST APIs, MySQL/NoSQL databases, and server-side architecture.</li><li>Good understanding of version control systems (Git) and deployment workflows.</li><li>Familiarity with cloud services (AWS, DigitalOcean, etc.) is a plus.</li><li>Ability to write clean, testable, and reusable code.</li></ul>Job Type: Full-timeApplication Question(s):<ul><li>Overall years of experience as Backend Developer?</li><li>Expertise in PHP?</li><li>Current and Expected Salary?</li></ul>Work Location: In person

Mid level Backend Developer (PHP - Expert)

Explore 295+ Backend developer in Karachi Jobs In Karachi Jobs In Karachi Jobs In Karachi Jobs In Karachi this December. Find roles across top companies and apply now to boost your career.

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Backend Developer

Backend Developer

Senior Backend Developer

Senior Backend Developer

Backend Developer - INTERN

Senior Backend Developer (Node.js)

Mid level Backend Developer (PHP - Expert)