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senior software engineer - ii (backend) | contractual Jobs in Karachi

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full stack developer

RedBox Technologies Pvt. Ltd.

Role Description:This is a full-time, on-site role for a Full Stack Developer based in Karachi. The Full Stack Developer will be responsible for developing, maintaining, and optimizing web applications, ensuring high performance, responsiveness, and scalability. The role involves working on both front-end and back-end development, collaborating with cross-functional teams, and delivering high-quality, user-focused digital solutions.Key responsibilities include designing and developing web applications, integrating APIs, troubleshooting issues, and continuously improving system performance. The candidate will also be expected to work on custom development projects and contribute to the overall technical architecture of applications.Qualifications:<ul><li>Strong proficiency in PHP and frameworks such as Laravel</li><li>Experience in custom web development and backend logic implementation</li><li>Solid knowledge of HTML, CSS, and JavaScript</li><li>Hands-on experience with WordPress development and customization</li><li>Familiarity with modern front-end frameworks such as React.js</li><li>Experience with backend technologies like Node.js</li><li>Working knowledge of Python is a plus</li><li>Experience with database management (MySQL or similar)</li><li>Understanding of RESTful APIs and third-party integrations</li><li>Strong problem-solving and debugging skills</li><li>Ability to work in a fast-paced environment and manage multiple tasks</li><li>Good communication and teamwork skills</li></ul>Skills:<ul><li>Experience with version control systems (e.g., Git)</li><li>Knowledge of deployment and hosting environments</li><li>Understanding of UI/UX principles</li></ul>Location: DHA Phase VII Ext. Karachi (On-site)Shift: Evening Job Type: Full-timePay: Up to Rs120,000.00 per monthWork Location: In person

Full stack Developer

Contour Software

<div>
 
 About Contour
 
 
 
 Contour Software has grown from a dozen people to over 2,000 staff across 3 cities, in less than 14 years.
 
 
 As a subsidiary of Constellation Software Inc., we are proud to be part of a global enterprise software conglomerate that has grown to become one of the top 10 software companies in the world, with employees and customers in 100+ countries. With a broad-based and ever-growing portfolio of market-leading, vertical-market enterprise solutions covering more than 100 industry domains in predominantly mature markets, CSI's recipe creates the perfect environment for professionals to build fulfilling, long-term careers.
 
 
 What started as an R&amp;D &amp; Accounting back-office, has progressed into a full-service Global Centre serving all functions and departments, at the divisional as well as operating group/corporate level. Today Contour employees, located in Karachi, Lahore &amp; Islamabad, are serving CSI divisions located in time zones spanning the globe, from Sydney to Vancouver. With the global growth of Constellation as the wind in our sails, we are only just getting started!
 
 
 
 The Division
 
 
 
 Campana Systems is an international leader in information solutions for the auto club industry. Since 1988, we have been enabling our clients to achieve their ongoing business objectives using our in-depth industry knowledge and trusted technology solutions.
 
 
 In 2014, Campana was acquired by Constellation Software Inc.'s Perseus Operating Group. As part of the Constellation family, we continue to provide the specialization and individual attention customers expect while benefiting from the support and best practices of an international provider of enterprise software.
 
 
 Campana Systems applies its in-depth knowledge and experience to maintain leadership in providing an evolving suite of integrated software and service solutions for AAA/CAA auto clubs. Campana offers ERP tools that interface seamlessly including Membership, Travel, Point-of-Sale, and Emergency Road Service.
 
 
 Our mission is to enable our auto club clients to achieve their strategic goals by providing leadership through effective innovative solutions and services.
 
 
 
 The Position
 
 
 
 We are looking for a Senior Software Developer Full Stack, who will work out of one of Contour Software's Karachi resource center offices, as a part of the R&amp;D department. The position will initially focus on investigating, designing, and coding solutions within the AXIS Enterprise environment. This will evolve into other toolsets such as python, LLM integrations, React and cloud-based stacks (Salesforce, AWS, Azure). Use of AI-supported IDE is expected.
 
 
 
 Desired Skills And Responsibilities
 
 
 
 Bachelor's Degree in Information Systems, Computer Engineering or equivalent Technical Degree; or equivalent combination of education and experience.
 
 
 Excellent verbal and written communication skills
 
 
 Strong troubleshooting skills
 
 
 Willing to work Full-time on legacy technology Pick Basic + internal tools.
 
 
 
 Nice To Have Skills
 
 
 
 Excellent time-management skills, with the ability to handle stress, prioritize tasks and work under shifting deadlines
 
 
 Experience in Dispatch, Travel Agency, Accounting or Financial systems
 
 
 4+ years of experience in Python or similar programming environments
 
 
 Excellent analytical, decision-making, and problem-solving skills
 
 
 Strong attention to detail
 
 
 Ability to remain organized but flexible in a fast-paced environment
 
 
 Secure software development practices
 
 
 Experience developing scalable enterprise applications
 
 
 
 Exciting Benefits We Offer
 
 
 
 <ul>
 <li>
 Market-leading Salary
 </li>
 <li>
 Medical Coverage &ndash; Self &amp; Dependents
 </li>
 <li>
 Parents Medical Coverage
 </li>
 <li>
 Provident Fund
 </li>
 <li>
 Employee Performance-based bonuses
 </li>
 <li>
 Home Internet Subsidy
 </li>
 <li>
 Conveyance Allowance
 </li>
 <li>
 Profit Sharing Plan [Tenured Employees Only]
 </li>
 <li>
 Life Benefit
 </li>
 <li>
 Child Care Facility
 </li>
 <li>
 Company Provided Lunch/Dinner
 </li>
 <li>
 Professional Development Budget
 </li>
 <li>
 Recreational area for in-house games
 </li>
 <li>
 Sporadic On-shore training opportunities
 </li>
 <li>
 Friendly work environment
 </li>
 <li>
 Leave Encashment
 
 
 </li>
 </ul>
 
 
 Disclaimer:
 
 
 
 At Contour, we attribute our success to the unique contributions of our diverse staff. We&rsquo;re committed to fostering a culture of respect that thrives on the varied perspectives and experiences of all individuals we recruit, employ, promote, and compensate. Since day one, we&rsquo;ve adhered to a policy that champions a work environment honoring the worth and dignity of each person while being free from all forms of employment discrimination.
 
 
 
 
 In our continuous effort to promote inclusivity, we extend our commitment to individuals with special needs by providing reasonable accommodations. We actively encourage qualified individuals with special needs to apply for the various openings within our company. Should you require assistance in completing the application process or have any inquiries regarding special facilities, please do not hesitate to contact our HR team. Your unique talents and abilities are welcomed and valued here.
 
</div>

Full Stack Developer

Has Impex

About the RoleWe're looking for a Shopify Full Stack Developer to handle both technical development and daily store operations enhancing user experience, optimizing performance, and supporting business growth.Key Responsibilities<ul><li>Build and customize Shopify themes and apps (front-end &amp; back-end)</li><li>Manage product content, pricing, and visual layout</li><li>Ensure smooth order processing, inventory syncing, and shipping flow</li><li>Resolve bugs, performance issues, and technical errors</li><li>Collaborate with marketing and design teams on campaign launches</li><li>Apply SEO best practices and assist with ad platform integrations</li><li>Monitor store performance and recommend conversion optimizations</li><li>Keep homepage visuals, banners, and content fresh and engaging</li><li>Integrate analytics, ad pixels, and third-party tools</li><li>Collaborate with marketing and design teams on campaigns</li></ul>Requirements<ul><li>1+ year of hands-on Shopify development experience</li><li>Strong proficiency in Shopify Liquid, HTML5, CSS3, JavaScript (ES6+), and Tailwind CSS</li><li>Solid understanding of SEO, Core Web Vitals, web accessibility, and user behavior tracking</li><li>Hands-on experience with GA4, Meta Pixel, TikTok Pixel, and ad integrations</li><li>Familiar with Shopify APIs, webhooks, and the app ecosystem</li><li>Experience with Git, GitHub/GitLab, and CI/CD pipelines</li><li>Familiarity with e-commerce workflows, store management, and operations</li><li>Strong problem-solving skills, ability to meet deadlines, and a collaborative mindset</li></ul>Plus Points<ul><li>React.js, Next.js, or TypeScript</li><li>Shopify Plus or headless commerce experience</li></ul>Job Type: Full timePay: Rs30,000.00 - Rs40,000.00 per monthWork Location: In person

Shopify Full-Stack Developer

<div>About Contour
Contour Software has grown from a dozen people to over 2,000 staff across 3 cities, in less than 14 years. 
As a subsidiary of Constellation Software Inc., we are proud to be part of a global enterprise software conglomerate that has grown to become one of the top 10 software companies in the world, with employees and customers in 100+ countries. With a broad-based and ever-growing portfolio of market-leading, vertical-market enterprise solutions covering more than 100 industry domains in predominantly mature markets, CSI's recipe creates the perfect environment for professionals to build fulfilling, long-term careers. 
What started as an R&amp;D &amp; Accounting back-office, has progressed into a full-service Global Centre serving all functions and departments, at the divisional as well as operating group/corporate level. Today Contour employees, located in Karachi, Lahore &amp; Islamabad, are serving CSI divisions located in time zones spanning the globe, from Sydney to Vancouver. With the global growth of Constellation as the wind in our sails, we are only just getting started!<div>
The Division:</div><div>
Campana Systems is an international leader in information solutions for the auto club industry. Since 1988, we have been enabling our clients to achieve their ongoing business objectives using our in-depth industry knowledge and trusted technology solutions.</div><div>
In 2014, Campana was acquired by Constellation Software Inc.'s Perseus Operating Group. As part of the Constellation family, we continue to provide the specialization and individual attention customers expect while benefiting from the support and best practices of an international provider of enterprise software.</div><div>
Campana Systems applies its in-depth knowledge and experience to maintain leadership in providing an evolving suite of integrated software and service solutions for AAA/CAA auto clubs. Campana offers ERP tools that interface seamlessly including Membership, Travel, Point-of-Sale, and Emergency Road Service.</div><div>
Our mission is to enable our auto club clients to achieve their strategic goals by providing leadership through effective innovative solutions and services.</div><div>
The Position:</div><div>
We are looking for a Senior Software Developer Full Stack, who will work out of one of Contour Software's Karachi resource center offices, as a part of the R&amp;D department. The position will initially focus on investigating, designing, and coding solutions within the AXIS Enterprise environment. This will evolve into other toolsets such as python, LLM integrations, React and cloud-based stacks (Salesforce, AWS, Azure). Use of AI-supported IDE is expected.</div><div> 
Desired Skills and Responsibilities:</div><div>
Bachelor's Degree in Information Systems, Computer Engineering or equivalent Technical Degree; or equivalent combination of education and experience.</div><div>
Excellent verbal and written communication skills</div><div>
Strong troubleshooting skills</div><div>
Willing to work Full-time on legacy technology Pick Basic + internal tools.</div><div>
Nice to have skills:</div><div>
Excellent time-management skills, with the ability to handle stress, prioritize tasks and work under shifting deadlines</div><div>
Experience in Dispatch, Travel Agency, Accounting or Financial systems</div><div>
4+ years of experience in Python or similar programming environments</div><div>
Excellent analytical, decision-making, and problem-solving skills</div><div>
Strong attention to detail</div><div>
Ability to remain organized but flexible in a fast-paced environment</div><div>
Secure software development practices</div><div>
Experience developing scalable enterprise applications</div>
Exciting Benefits we offer:<ul><li>
Market-leading Salary</li><li>
Medical Coverage &ndash; Self &amp; Dependents</li><li>
Parents Medical Coverage</li><li>
Provident Fund</li><li>
Employee Performance-based bonuses</li><li>
Home Internet Subsidy</li><li>
Conveyance Allowance</li><li>
Profit Sharing Plan [Tenured Employees Only]</li><li>
Life Benefit</li><li>
Child Care Facility</li><li>
Company Provided Lunch/Dinner</li><li>
Professional Development Budget</li><li>
Recreational area for in-house games</li><li>
Sporadic On-shore training opportunities</li><li>
Friendly work environment</li><li>
Leave Encashment</li></ul>
Disclaimer: At Contour, we attribute our success to the unique contributions of our diverse staff. We&rsquo;re committed to fostering a culture of respect that thrives on the varied perspectives and experiences of all individuals we recruit, employ, promote, and compensate. Since day one, we&rsquo;ve adhered to a policy that champions a work environment honoring the worth and dignity of each person while being free from all forms of employment discrimination.
In our continuous effort to promote inclusivity, we extend our commitment to individuals with special needs by providing reasonable accommodations. We actively encourage qualified individuals with special needs to apply for the various openings within our company. Should you require assistance in completing the application process or have any inquiries regarding special facilities, please do not hesitate to contact our HR team. Your unique talents and abilities are welcomed and valued here.</div>

Ecom Verse

We&rsquo;re looking for a skilled Full Stack Developer with at least 2 years of hands-on experience building custom web applications, CRMs, and branded websites.You must be:<ul><li>Highly experienced with both front-end and back-end technologies.</li><li>Able to work fast, take ownership, and complete projects independently without waiting for instructions.</li><li>Ready to join full-time immediately and contribute to a fast-paced, results-driven team.</li></ul>Requirements:<ul><li>Minimum 2 years of professional full stack development experience.</li><li>Strong understanding of modern frameworks (React, Node.js, Laravel, etc.).</li><li>Experience in custom CRM development, API integrations, and responsive web design.</li><li>Ability to write clean, efficient, and scalable code.</li><li>Strong problem-solving and self-management skills.</li></ul>We will only consider profiles with portfolios &mdash; please include links to your previous projects or GitHub/Bitbucket reposLocation Gulshan e iqbal block 3Job Type: Full-timePay: Rs150,000.00 - Rs200,000.00 per monthWork Location: In person

Full Stack Developer (Night Shift)

<div>About Contour
Contour Software has grown from a dozen people to over 2,000 staff across 3 cities, in less than 14 years. 
As a subsidiary of Constellation Software Inc., we are proud to be part of a global enterprise software conglomerate that has grown to become one of the top 10 software companies in the world, with employees and customers in 100+ countries. With a broad-based and ever-growing portfolio of market-leading, vertical-market enterprise solutions covering more than 100 industry domains in predominantly mature markets, CSI's recipe creates the perfect environment for professionals to build fulfilling, long-term careers. 
What started as an R&amp;D &amp; Accounting back-office, has progressed into a full-service Global Centre serving all functions and departments, at the divisional as well as operating group/corporate level. Today Contour employees, located in Karachi, Lahore &amp; Islamabad, are serving CSI divisions located in time zones spanning the globe, from Sydney to Vancouver. With the global growth of Constellation as the wind in our sails, we are only just getting started!<div><div>
About Division:</div><div>
Constellation Payments is a leading global gateway and merchant services provider with special expertise in software integration and recurring transactions representing a wide variety of verticals &ndash; including government entities, municipalities, moving and storage, club management, attractions, fitness, martial arts, event registration and hospitality management.</div><div>
Key Responsibilities</div><div><ul><li>
Design, develop, and maintain backend microservices in Node.js/TypeScript using AWS Lambda, Cloud Run, Cloud Functions, Dataflow, S3, QuickSight, and Athena.</li></ul></div><div><ul><li>
Implement REST APIs to enable high-performance, secure integrations with internal and external systems.</li></ul></div><div><ul><li>
Build and maintain frontend features using modern component libraries such as React.</li></ul></div><div><ul><li>
Design and optimize data pipelines leveraging Kafka/MSK, Airflow, and cloud data lakes for real-time and batch processing.</li></ul></div><div><ul><li>
Collaborate with QA, Product, and cross-functional teams to troubleshoot, resolve, and prevent production issues.</li></ul></div><div><ul><li>
Write unit and integration tests, enforce coding standards, and refactor code to follow DRY and scalable architecture principles.</li></ul></div><div><ul><li>
Mentor junior developers on engineering best practices, cloud computing, and microservice design.</li></ul></div><div><ul><li>
Peer review commits and pull requests, ensuring code quality and adherence to architecture standards.</li></ul></div><div><ul><li>
Document systems, workflows, and technical designs in Confluence for organizational knowledge sharing.</li></ul></div><div><ul><li>
Contribute to scaling initiatives by building ledger-driven financial workflows, transaction monitoring systems, and automated reporting pipelines.</li></ul></div><div><ul><li>
Experience working in Agile development environments, including Scrum or Kanban, collaborating closely with cross-functional teams to deliver iterative, high quality software.</li></ul></div><div>
Required Skills and Qualifications:</div><div><ul><li>
6+ years of software development experience.</li></ul></div><div><ul><li>
Python, JavaScript/TypeScript, React</li></ul></div><div><ul><li>
Cloud &amp; Infrastructure: AWS (Lambda, S3, EKS, QuickSight), GCP (Cloud Functions, Cloud Run)</li></ul></div><div><ul><li>
Databases: PostgreSQL, MongoDB, AWS Athena</li></ul></div><div><ul><li>
Data &amp; Messaging: Kafka/MSK, Airflow, SQS</li></ul></div></div><div><div><ul><li>
DevOps &amp; Tools: Docker, Git, Confluence, Jira, CloudWatch Other: API Design, Distributed Systems, Microservices, Event-Driven Architecture</li></ul></div><div>
Nice-to-Have Qualifications</div><div><ul><li>
Experience with financial systems, payment processing, or ledger-based architectures.</li></ul></div><div><ul><li>
Familiarity with infrastructure-as-code (Terraform, CloudFormation).</li></ul></div><div><ul><li>
Exposure to container orchestration (Kubernetes, ECS).</li></ul></div><div><ul><li>
Hands-on experience with CI/CD pipelines (GitHub Actions, CodePipeline).</li></ul></div><div><ul><li>
Knowledge of data visualization and reporting tools (QuickSight, Tableau, or Looker).</li></ul></div><div><ul><li>
Understanding of observability tools (Prometheus, Grafana, Datadog).</li></ul></div><div><ul><li>
Interest in mentorship, technical leadership, and architecture design reviews.</li></ul></div><div><ul><li>
Familiarity with machine learning and/or AI systems.</li></ul></div><div><ul><li>
Passion for continuous improvement, clean architecture, and developer experience.</li></ul></div></div>
Exciting Benefits we offer:<ul><li>
Market-leading Salary</li><li>
Medical Coverage &ndash; Self &amp; Dependents</li><li>
Parents Medical Coverage</li><li>
Provident Fund</li><li>
Employee Performance-based bonuses</li><li>
Home Internet Subsidy</li><li>
Conveyance Allowance</li><li>
Profit Sharing Plan [Tenured Employees Only]</li><li>
Life Benefit</li><li>
Child Care Facility</li><li>
Company Provided Lunch/Dinner</li><li>
Professional Development Budget</li><li>
Recreational area for in-house games</li><li>
Sporadic On-shore training opportunities</li><li>
Friendly work environment</li><li>
Leave Encashment</li></ul>
Disclaimer: At Contour, we attribute our success to the unique contributions of our diverse staff. We&rsquo;re committed to fostering a culture of respect that thrives on the varied perspectives and experiences of all individuals we recruit, employ, promote, and compensate. Since day one, we&rsquo;ve adhered to a policy that champions a work environment honoring the worth and dignity of each person while being free from all forms of employment discrimination.
In our continuous effort to promote inclusivity, we extend our commitment to individuals with special needs by providing reasonable accommodations. We actively encourage qualified individuals with special needs to apply for the various openings within our company. Should you require assistance in completing the application process or have any inquiries regarding special facilities, please do not hesitate to contact our HR team. Your unique talents and abilities are welcomed and valued here.</div>

Senior Full Stack Developer (TypeScript)

INQ STAR

Job TitleSenior Full Stack Developer (React / Node.js) &ndash; Mandatory Experience RequiredJob DescriptionWe are hiring a Senior Full Stack Developer to build a complete web-based system from scratch for internal business operations.This is a high-responsibility role requiring full ownership of the system, including architecture, development, and deployment. Only candidates meeting all mandatory requirements should apply.Key Responsibilities (Mandatory Experience)The candidate must have proven experience in all of the following:<ul><li>Built at least 1&ndash;2 complete web applications from scratch (end-to-end)</li><li>Designed system architecture independently</li><li>Developed full frontend and backend systems</li><li>Created and managed production-level APIs</li><li>Integrated third-party services (e.g., payment gateways, SMS APIs)</li><li>Built admin dashboards or internal tools</li><li>Deployed live projects on cloud platforms (AWS, GCP, or Azure)</li><li>Designed and managed databases, including optimization</li></ul>Technical Requirements (Mandatory)Frontend:<ul><li>Strong experience in React.js or Next.js</li></ul>Backend:<ul><li>Node.js or Python (Django or FastAPI)</li></ul>Database:<ul><li>PostgreSQL, MySQL, or MongoDB</li></ul>Other Requirements:<ul><li>API development and integrations</li><li>Git version control</li><li>Cloud deployment experience (AWS, GCP, or Azure)</li></ul>Education (Mandatory)<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, IT, or a related field</li></ul>OR<ul><li>Equivalent proven industry experience with a strong portfolio (must be demonstrated)</li></ul>Experience (Mandatory)<ul><li>Minimum 5+ years of full stack development experience</li><li>Proven track record of delivering live production systems</li></ul>Disqualification CriteriaApplications will not be considered if:<ul><li>Experience is limited to small tasks or partial modules</li><li>No complete systems have been built independently</li><li>Candidate is unable to explain system architecture clearly</li><li>Heavy dependency on team for core development</li></ul>Preferred Qualifications (Optional)<ul><li>Experience with logistics, inventory, or ERP systems</li><li>Familiarity with automation or AI tools</li><li>Basic understanding of UI/UX principles</li></ul>Job TypeFull-timeJob Type: Full-timePay: Rs150,000.00 - Rs200,000.00 per monthApplication Question(s):<ul><li>System Built from Scratch (Mandatory)</li></ul>Have you built a complete web application from scratch (frontend + backend + database + deployment)? If yes, share project details along with live link or GitHub.<ul><li>Experience Level (Mandatory)</li></ul>Do you have at least 5 years of full stack development experience?Yes / No<ul><li>Tech Stack (Mandatory)</li></ul>Do you have hands-on experience with:React.js or Next.js (Frontend) Node.js or Python (Backend) Yes / No<ul><li>System Design Ability (Mandatory)</li></ul>Can you independently design scalable system architecture? If yes, briefly explain how you would design a web application.<ul><li>Cloud Deployment (Mandatory)</li></ul>Have you deployed applications on cloud platforms (AWS, GCP, or Azure)? If yes, specify which platform and what you deployed.Work Location: In personJob Type: Full-timePay: Rs150,000.00 - Rs200,000.00 per monthWork Location: In person

Senior Full Stack Developer (React / Node.js)

Explore 1851+ Full stack developer in Karachi this April. Find roles across top companies and apply now to boost your career.

1851 full stack developer jobs In Karachi

Full stack Developer

Full Stack Developer

Shopify Full-Stack Developer

Full Stack Developer

Full Stack Developer (Night Shift)

Senior Full Stack Developer (TypeScript)

Senior Full Stack Developer (React / Node.js)