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senior software engineer i - backend Jobs in Karachi

senior software engineer i - backend

application engineer

microservices engineer

Careem

<div>
 <strong>
  About the Company
  <br/>
  <br/>
 </strong>
 Careem is building the Everything App for the greater Middle East &mdash; making it easy to move around, order food and groceries, manage payments, and more. Our purpose is simple: to simplify and improve people&rsquo;s lives and build an awesome organisation that inspires.
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 Since 2012, Careem has enabled earnings for over 2.5 million Captains, simplified the lives of more than 70 million customers, and built a platform where the region&rsquo;s best talent and entrepreneurs thrive. We operate in 70+ cities across 10 countries, from Morocco to Pakistan.
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 <strong>
  <em>
   We&rsquo;re now entering our next chapter &mdash; one powered by AI. We&rsquo;re looking for AI talent: curious problem-solvers who know how to apply AI to build tools, automate workflows, and create real impact. Whether it&rsquo;s streamlining operations, enhancing customer experience, or reimagining internal systems &mdash; we want people who can make Careem work smarter and move faster.
   <br/>
   <br/>
  </em>
 </strong>
 <strong>
  About The Role
  <br/>
  <br/>
 </strong>
 We are looking for a Senior Software Engineer I to join our Engagement team, focused on the Benefits Platform squad. This squad builds the systems behind promotions and discounts that drive a big part of Careem&rsquo;s business. You&rsquo;ll work on high-impact projects, designing and scaling backend services, and help shape the experience for millions of customers across our region.
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 <strong>
  What You'll Do
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Work closely with other engineers on the team to build highly scalable and robust backend applications and services.
  </li>
  <li>
   Write high quality, performant and reliable code while working on defined tasks/bugs independently.
  </li>
  <li>
   Work independently to understand functional specifications and deliver complete features.
  </li>
  <li>
   Participate in the on-call rotation and be willing to jump in and help resolve any incidents within the defined SLA.
  </li>
  <li>
   Participate in team agile and engineering practices and contribute to their continuous evolution.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  What You'll Need
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   4+ years of professional software development experience.
  </li>
  <li>
   Bachelor's Degree in Computer Science or other related technical field.
  </li>
  <li>
   Working experience with at least one modern object-oriented programming language such as Java, Golang, Kotlin.
  </li>
  <li>
   Working knowledge of Computer Science fundamentals including: object-oriented design, data structures and algorithms.
  </li>
  <li>
   Experience operating online systems reliably including deploying changes to production in live systems.
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Preferred Skills &amp; Qualifications
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Master's Degree in Computer Science or other related technical field.
  </li>
  <li>
   Experience with Golang, microservices and high performing systems based on AWS or other Cloud providers.
  </li>
  <li>
   Experience working with container technology including Docker and Kubernetes.
  </li>
  <li>
   Experience working with relational and non-relational database systems.
  </li>
  <li>
   Experience applying professional software engineering best practices, including coding standards, code reviews, source control management, build processes, testing, and operations.
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   <br/>
  </li>
 </ul>
 <strong>
  What We&rsquo;ll Provide You
  <br/>
  <br/>
 </strong>
 We offer colleagues the opportunity to drive impact in the region while they learn and grow. As a full time Careem colleague, you will be able to:
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 <ul>
  <li>
   Work and learn from great minds by joining a community of inspiring colleagues.
  </li>
  <li>
   Put your passion to work in a purposeful organization dedicated to creating impact in a region with a lot of untapped potential.
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  <li>
   Explore new opportunities to learn and grow every day.
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  <li>
   Work 4 days a week in office &amp; 1 day from home, and remotely from any country in the world for 30 days a year with unlimited vacation days per year. (If you are in an individual contributor role in tech, you will have 2 office days a week and 3 to work from home.)
  </li>
  <li>
   Access to healthcare benefits and fitness reimbursements for health activities including gym, health club, and training classes.
  </li>
 </ul>
</div>


Senior Software Engineer I - Backend

Confiz

<div><p>The ideal candidate will be a Python expert with a primary focus AI/ML. They will also be responsible for maintaining existing applications and collaborating with cross-functional teams.</p>
<p><b>Responsibilities</b></p>
<ul><li>Design, develop, and optimize backend services and microservices using Python (FastAPI/Flask) following best practices for scalability, security, and maintainability.</li>
<li>Build and maintain robust RESTful APIs, including authentication/authorization, rate limiting, logging, and monitoring.</li>
<li>Architect and deploy cloud-native applications using AWS (Lambda, ECS/EKS, API Gateway, S3, CloudWatch, RDS/DynamoDB) or equivalent cloud platforms.</li>
<li>Work with Docker/Kubernetes to containerize, orchestrate, and scale backend applications in production environments.</li>
<li>Design efficient data models and integrate with relational and NoSQL databases (PostgreSQL, MySQL, DynamoDB).</li>
<li>Implement CI/CD pipelines and automated deployments using GitHub Actions, GitLab, Azure DevOps, or similar tooling.</li>
<li>Collaborate with product managers and engineering teams to integrate backend systems into enterprise workflows.</li>
<li>Monitor and evaluate deployed services, improving performance, reliability, and cost efficiency based on metrics and user feedback.</li>
<li>Document backend architecture, APIs, deployment processes, and operational guidelines for maintainability and reuse..</li>
</ul>
<p><b>Required Skills &amp; Qualifications</b></p>
<ul><li>Bachelor&rsquo;s or Master&rsquo;s degree in Computer Science, Software Engineering, Data Science, or a related field.</li>
<li>5+ years of professional experience in backend engineering, with strong proficiency in Python.</li>
<li>Hands-on experience with FastAPI or Flask, including API design, validation, middleware, and performance optimization.</li>
<li>Strong understanding of AWS or similar cloud platforms, with experience deploying and running production-grade services.</li>
<li>Proficiency in Python libraries commonly used in backend and data workflows (SQLAlchemy, Pydantic, boto3, openai, pandas, numpy).</li>
<li>Familiarity with Docker, Kubernetes, and containerized deployments in cloud environments.</li>
<li>Strong understanding of distributed systems, microservices, and asynchronous programming.</li>
<li>Good problem-solving and analytical skills with a hands-on, ownership-driven mindset.</li>
<li>Strong communication skills and ability to work in cross-functional teams.</li>
</ul>
<p><b>Nice to Have - AI/ML Requirements:</b></p>
<ul><li>Exposure to transformers, embeddings, RAG, or LLM frameworks such as LangGraph, LangChain, or Autogen.</li>
<li>Experience integrating AI/ML inference endpoints or 3rd-party AI services into backend systems.</li>
<li>Experience with model fine-tuning or vector databases is a plus.</li>
<li>Integrate AI/LLM-based components into backend services when required.</li>
<li>Build and maintain basic RAG or vector-search pipelines that interface with text or image knowledge bases.</li>
<li>Apply prompt engineering, model fine-tuning, or data preprocessing techniques when enhancing AI-powered features.</li>
<li>Work with transformers, LLM APIs, or pretrained models as part of feature add-ons or experimental capabilities</li>
</ul>
<p>We have an amazing team of 700+ individuals working on highly innovative enterprise projects &amp; products. Our customer base includes Fortune 100 retail and CPG companies, leading store chains, fast-growth fintech, and multiple Silicon Valley startups.</p>
<p>What makes Confiz stand out is our focus on processes and culture. Confiz is <b>ISO 9001:2015</b> (QMS), <b>ISO 27001:2022</b> (ISMS), <b>ISO 20000-1:2018</b> (ITSM), <b>ISO 14001:2015</b> (EMS), <b>ISO 45001:2018 </b>(OHSMS) Certified. We have a vibrant culture of learning via collaboration and making workplace fun.</p>
<p>People who work with us work with cutting-edge technologies while contributing success to the company as well as to themselves.</p>
<p>To know more about Confiz Limited, visit: https://www.linkedin.com/company/confiz-pakistan/</p></div>

Backend Python Engineer

Disrupt.com (formerly Gaditek)

<div>
 <p>
  <strong>
   What You&rsquo;ll Do:
  </strong>
 </p>
 <ul>
  <li>
   Build Real Products: Work directly with tech leads to build MVPs, scale systems, and solve meaningful problems across fintech, healthcare, AI, and more.
  </li>
  <li>
   Contribute to Excellence: Ship high-quality code, participate in key technical decisions, and mentor teammates within your ventures.
  </li>
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   Deliver Business Impact: Own tech KPIs that matter. Build things that users need and businesses rely on.
  </li>
  <li>
   Work AI-First: Use our AI-powered tools and workflows to accelerate development and deliver smarter solutions.
  </li>
  <li>
   Design for Scale: Build cloud-native, microservices-based systems that can adapt as ventures grow.
  </li>
  <li>
   Learn Our System: Apply our proven venture-building playbooks to move fast without breaking everything.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   What we're looking for:
  </strong>
 </p>
 <p>
  <strong>
   Core technical requirements
  </strong>
 </p>
 <ul>
  <li>
   Strong experience with
   <strong>
    Python
   </strong>
   and modern
   <strong>
    web frameworks (Django, FastAPI)
   </strong>
   Experience with cloud platforms
   <strong>
    (AWS/GCP/Azure),
   </strong>
   Docker, and microservices Working knowledge of SQL databases (PostgreSQL, MySQL) and basic NoSQL experience Understanding of CI/CD pipelines, cloud services, and deployment practices
  </li>
  <li>
   Experience building and consuming RESTful APIs and understanding of web services Experience with test-driven development and automated testing strategies
  </li>
  <li>
   Familiarity with serverless architecture and tools (e.g., AWS Lambda, Cloud Functions)
  </li>
 </ul>
 <p>
  <strong>
   Nice to have:
  </strong>
 </p>
 <ul>
  <li>
   Frontend experience: Knowledge of NextJS, React, JavaScript, or TypeScript
  </li>
  <li>
   AI/LLM familiarity: Exposure to LangChain, LlamaIndex, OpenAI SDK, or similar frameworks
  </li>
  <li>
   Advanced infrastructure: Kubernetes, infrastructure as code, monitoring and observability tools
  </li>
 </ul>
 <p>
  <strong>
   Relevant experience:
  </strong>
 </p>
 <ul>
  <li>
   3-5 years of software engineering experience with 1-2 years in startup or fast-paced environments
  </li>
  <li>
   Hands-on experience building web applications from development through deployment
  </li>
  <li>
   Experience with agile methodologies and iterative development
  </li>
  <li>
   Demonstrated ability to learn new technologies quickly and adapt to changing requirements
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Traits that matter to us:
  </strong>
 </p>
 <ul>
  <li>
   Move fast and work hard: You can work quickly and make rapid progress while putting in the effort required to deliver excellent results
  </li>
  <li>
   Drive intense execution: You push through obstacles to get things done and don't give up when facing challenges
  </li>
  <li>
   Scrappy with bias for action: You're resourceful and prefer doing over discussing, finding creative solutions with limited resources
  </li>
  <li>
   Love to learn: Enthusiastic about acquiring new skills and staying current with emerging technologies
  </li>
  <li>
   Humble and collaborative: Work well with others without ego getting in the way. No place for egos
  </li>
  <li>
   Extreme ownership: Take full responsibility for outcomes and results; don't blame others when things go wrong
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   What success looks like:
  </strong>
 </p>
 <ul>
  <li>
   Write clean, maintainable code while contributing to architecture that supports both MVP speed and long-term scalability.
  </li>
  <li>
   Maintain high code quality through testing, metrics, and effective use of AI tools and automation to boost productivity.
  </li>
  <li>
   Own technical KPIs tied to venture success by collaborating with venture leaders and product teams, turning technical insights into real business value, and driving product-market fit through strong execution.
  </li>
  <li>
   Mentor junior engineers, actively contribute to reviews and knowledge sharing, and help improve development processes while fostering a culture of best practices.
  </li>
  <li>
   Stay adaptable and continuously learn new tools and technologies, embrace and enhance our AI-first development approach, and demonstrate clear progress toward technical leadership.
  </li>
 </ul>
 <p>
 </p>
</div>


Senior Software Engineer

Contour Software

<div><div>About Contour</div><div></div><div><div>
Contour Software</div> has grown from a dozen people to over 2,000 staff across 3 cities, in less than 14 years.</div><div><br>
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.</div><div><br>
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></div><div><br>
The Division</div><div>
At <div>CSIPay</div>, a Jonas company, we are dedicated to empowering Constellation&rsquo;s six operating groups in the USA and Canada with seamless payment processing solutions. Our goal is to give you greater control over your revenue, enhance your market potential, and improve customer satisfaction, fostering success for all within the Constellation family.</div><div></div><div>
Constellation Payment Processing is a modern Payment Facilitator (PayFac) empowering SaaS businesses to grow revenue through seamless, embedded payments. As part of Constellation Software Inc. (TSE: CSU) &mdash; a global Canadian-based software leader at a $96B market cap and the 7th largest software company in the world &mdash; we combine the agility of a specialized payments company with the strength and stability of an established global powerhouse.</div><div><br>
About the Role</div><div>
We are seeking a Senior Software Engineer with strong experience in Java development and modern cloud-native architectures. This role will focus on designing, building, and maintaining scalable APIs and backend services, collaborating closely with Product, QA, and Project Management to deliver reliable, high-quality software solutions.</div><div><br>
Key Responsibilities</div><ul><li>
Design, develop, and maintain backend systems and RESTful APIs using Java (Maven-based projects).</li><li>
Architect and implement scalable, maintainable, and secure application designs.</li><li>
Write comprehensive unit and integration tests and participate in peer code reviews.</li><li>
Containerize and deploy applications using Docker and related CI/CD pipelines.</li><li>
Collaborate with product teams to refine requirements and ensure technical feasibility.</li><li>
Partner with QA engineers to establish effective testing strategies and automation.</li><li>
Work with project management to plan, estimate, and deliver features on time.</li><li>
Utilize and optimize AWS services namely S3, Lambda, and EC2 for distributed systems and data handling.</li><li>
Contribute to internal technical discussions, documentation, and design reviews.</li><li>
Mentor junior developers and advocate for engineering best practices and code quality.</li><li>
Familiar with Agile methodologies and processes.</li></ul><div><br>
Required Qualifications</div><ul><li>
8+ years of professional experience in software engineering.</li><li>
Strong proficiency in Java with hands-on experience in Maven build systems.</li><li>
Solid understanding of API design principles, microservice architecture, and software lifecycle management.</li><li>
Experience with Docker for local development and production deployments.</li><li>
Proficiency in Java testing frameworks.</li><li>
Demonstrated experience with AWS cloud infrastructure (S3, Lambda, EC2, IAM, etc.).</li><li>
Excellent problem-solving, communication, and cross-team collaboration skills.</li><li>
Familiar with Agile methodologies and processes.</li></ul><div><br>
Nice-to-Have Skills</div><ul><li>
Familiarity with TypeScript or Python for tooling, scripting, or microservices.</li><li>
Experience with serverless architectures and event-driven design patterns.</li><li>
Exposure to CI/CD pipelines (GitHub Actions, Jenkins, or similar).</li><li>
Understanding of distributed systems, observability, and monitoring tools</li></ul><div></div><div>
Exciting Benefits we offer:</div><ul><li><div>
Market-leading Salary</div></li><li><div>
Medical Coverage &ndash; Self &amp; Dependents</div></li><li><div>
Parents Medical Coverage</div></li><li><div>
Provident Fund</div></li><li><div>
Employee Performance-based bonuses</div></li><li><div>
Home Internet Subsidy</div></li><li><div>
Conveyance Allowance</div></li><li><div>
Profit Sharing Plan [Tenured Employees Only]</div></li><li><div>
Life Benefit</div></li><li><div>
Child Care Facility</div></li><li><div>
Company Provided Lunch/Dinner</div></li><li><div>
Professional Development Budget</div></li><li><div>
Recreational area for in-house games</div></li><li><div>
Sporadic On-shore training opportunities</div></li><li><div>
Friendly work environment</div></li><li><div>
Leave Encashment</div></li></ul><div></div><div><i>
Disclaimer:</i><i> 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.</i></div><div></div><div><i>
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.</i></div></div><div></div>

Senior Software Developer (Java)

VIRTUOSOFT

<p><b>Job Overview</b></p><p>We are seeking a skilled <b>Full Stack Engineer</b> with strong expertise in <b>TypeScript</b>, <b>Next.js</b>, <b>NestJS</b>, <b>React</b>, and <b>Node.js</b>. The ideal candidate will build high-quality, end-to-end web applications, including scalable backend services and responsive front-end experiences. This role requires strong architectural understanding, performance-focused development, and hands-on experience with relational and non-relational databases.</p><p><b>Key Responsibilities</b></p><ul><li>Develop and maintain full-stack applications using <b>Next.js, NestJS, React, and Node.js</b></li><li>Write clean, reusable, high-quality <b>TypeScript</b> code</li><li>Build secure and efficient <b>RESTful APIs</b> and microservices</li><li>Work with <b>PostgreSQL, SQL, and MongoDB</b> for optimized data handling</li><li>Collaborate with Product, UX/UI, and cross-functional teams</li><li>Implement responsive front-end designs with excellent user experience</li><li>Optimize application performance, scalability, and reliability</li><li>Participate in code reviews and ensure code quality standards</li><li>Support DevOps processes including <b>Git</b>, CI/CD pipelines, and cloud deployments</li><li>Stay updated with emerging tools, frameworks, and industry best practices</li></ul><p><b>Required Qualifications</b></p><ul><li>Bachelor&rsquo;s degree in <b>Computer Science</b>, Software Engineering, or related field</li><li><b>3&ndash;6 years</b> of professional full-stack development experience</li><li>Strong command of <b>TypeScript</b> and modern JavaScript (ES6+)</li><li>Expertise with <b>Next.js, React, and NestJS</b></li><li>Solid backend experience using <b>Node.js</b></li><li>Strong database skills in <b>PostgreSQL, SQL, MongoDB</b></li><li>Proficiency in <b>REST API</b> development and integration</li><li>Experience with authentication/authorization (JWT, OAuth)</li><li>Understanding of architecture patterns (MVC, microservices) and clean coding</li><li>Familiarity with <b>Docker</b>, CI/CD, Git, and cloud platforms (AWS/Azure/GCP)</li><li>Strong problem-solving skills and ability to work in a collaborative environment</li></ul><p><b>Preferred Skills</b></p><ul><li>Experience with <b>SSR</b> and <b>SSG</b> in Next.js</li><li>Knowledge of <b>GraphQL</b>, WebSockets, or microservices</li><li>Experience with front-end testing (Jest, Cypress, RTL)</li><li>Familiarity with <b>Agile/Scrum</b> methodologies</li><li>Experience in performance optimization and security practices</li></ul><p><b>What We Offer</b></p><ul><li>Competitive salary and benefits</li><li>Professional development and growth opportunities</li><li>Modern tech stack and collaborative team culture</li><li>Work on innovative projects with global exposure</li></ul><p>Job Type: Full-time</p><p>Work Location: In person</p>

Full Stack Engineer

Htech Solution Pvt. Ltd.

<p>We are seeking a highly skilled and experienced Full Stack Software Engineer who thrives in a dynamic and fast-paced environment. The ideal candidate will have deep expertise in both front-end and backend technologies, as well as hands-on experience with modern DevOps practices and mobile app development frameworks. Design, develop, and maintain scalable and robust web and mobile applications. Architect full-stack solutions using modern frameworks and technologies. Write clean, maintainable, and testable code following best practices. Work closely with cross-functional teams, including UI/UX, QA, and DevOps. Develop RESTful APIs and Microservices for backend functionality. Set up and manage containerized environments using Docker. Collaborate on CI/CD pipelines and deployment automation. Contribute to architectural decisions and code reviews. Optimize applications for performance, scalability, and security.</p><p>5+ years of hands-on experience in full-stack software development.</p><p>Strong backend development skills in .NET (C#) and Node.js.</p><p>Proficient in front-end frameworks: Angular and/or React.</p><p>Experience with SQL Server, MySQL, and MongoDB.</p><p>Solid understanding of RESTful APIs and Microservices architecture.</p><p>Experience with Docker and container orchestration.</p><p>Familiarity with DevOps tools and practices (CI/CD, Git, pipelines, etc.).</p><p>Experience in mobile development using Flutter and/or React Native.</p><p>Good understanding of software design principles, scalability, and security.</p><p>Knowledge of Kubernetes or cloud platforms (AWS, Azure, GCP).</p><p>Experience in automated testing and performance tuning.</p><p>Familiarity with message queues (RabbitMQ, Kafka, etc.).</p><p>Strong analytical and problem-solving abilities.</p><p>Excellent communication and teamwork skills.</p><p>Ability to work independently and manage priorities in a remote or hybrid setup.</p><p>Passion for learning and staying up to date with industry trends</p><p>Job Type: Full-time</p><p>Application Question(s):</p><ul><li>Do you have an experience in  .NET (C#) and Node.js?</li><li>Do you have an experience in Angular and/or React?</li><li>Do you have an experience in SQL Server, MySQL, and</li></ul><p>MongoDB?</p><ul><li>Do you have an experience in RESTful AP?</li><li>Do you have an experience in Docker and container orchestration?</li><li>Do you have an experience in DevOps tools and practices (CI/CD, Git, pipelines,</li></ul><p>etc.)?</p><ul><li>Do you have an experience in mobile development using</li></ul><p>Flutter and/or React Native?</p><ul><li>Do you have an experience in cloud platforms (AWS, Azure, GCP)?</li><li>Do you have an experience in RabbitMQ, Kafka, etc?</li></ul><p>Experience:</p><ul><li>Full stack Engineer: 5 years (Required)</li></ul><p>Work Location: In person</p>

Senior Full Stack Software Engineer (Dot Net)

Explore 230+ Microservices engineer in Karachi this December. Find roles across top companies and apply now to boost your career.

230 microservices engineer jobs IN Karachi

Senior Software Engineer I - Backend

Senior Software Engineer I - Backend

Backend Python Engineer

Senior Software Engineer

Senior Software Developer (Java)

Full Stack Engineer

Senior Full Stack Software Engineer (Dot Net)