senior software engineer - ii (backend) | contractual

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

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senior software engineer ii backend contractual

Pakistan Single Window (PSW)

<div>
 Design &amp; Develop Software Architecture and applications as per business requirements following best practices.
 
 
 Troubleshoot code-level problems quickly and efficiently
 
 
 Provide architectural blueprints and technical leadership to our development teams
 
 
 Evaluate and recommend tools, technologies, and processes to ensure the highest quality product platform
 
 
 Collaborate with cross-functional teams in technology and product roadmap discussions
 
 
 Participate in code review, refactoring, and improvement.
 
 
 
 Requirements
 
 
 
 <ul>
 <li>
 1+ years' experience designing and executing enterprise-class products
 </li>
 <li>
 3+ years' experience in software development
 </li>
 <li>
 Excellent proficiency &amp; hands-on technical leadership in the following technologies:
 </li>
 <li>
 Microsoft Technologies: .NET / .NET Core, Web Services
 </li>
 <li>
 Web technologies: ReactJS, Typescript, Webforms, KenduUI, CSS, HTML
 </li>
 <li>
 Enterprise Applications: Microservices, Containers, Service orchestration
 </li>
 <li>
 Database: SQL Server o Others: Git, GitFlow, Linux
 </li>
 <li>
 Ability to perform comfortably in a fast-paced, deadline-oriented, agile environment
 </li>
 <li>
 Strong Problem-solving, debugging, and analytical skills
 </li>
 </ul>
</div>

Senior Software Engineer - II (Backend) | Contractual

Pakistan Single Window

<div>Design &amp; Develop Software Architecture and applications as per business requirements following best practices.
Troubleshoot code-level problems quickly and efficiently
Provide architectural blueprints and technical leadership to our development teams
Evaluate and recommend tools, technologies, and processes to ensure the highest quality product platform
Collaborate with cross-functional teams in technology and product roadmap discussions
Participate in code review, refactoring, and improvement. 
Requirements 
<ul><li>
1+ years&rsquo; experience designing and executing enterprise-class products</li><li>
3+ years&rsquo; experience in software development</li><li>
Excellent proficiency &amp; hands-on technical leadership in the following technologies:
</li><li>Microsoft Technologies: .NET / .NET Core, Web Services
</li><li>Web technologies: ReactJS, Typescript, Webforms, KenduUI, CSS, HTML
</li><li>Enterprise Applications: Microservices, Containers, Service orchestration
</li><li>Database: SQL Server o Others: Git, GitFlow, Linux</li><li>
Ability to perform comfortably in a fast-paced, deadline-oriented, agile environment &bull; Strong Problem-solving, debugging, and analytical skills.</li></ul></div>

Beam AI

<div>
 Beam AI builds self-learning AI agents and an organisational operating system where intelligence grows through autonomous discovery. We help enterprises evolve from AI-curious to AI-native with automation that delivers results today and learns to improve itself over time. Join us in shaping a future where AI continuously discovers, adapts, and makes work more meaningful. To learn more, visit https://beam.ai/.
 
 
 
 About The Team
 
 
 
 Beam's engineering team is building the core infrastructure for self-learning agents, turning AI into reliable, production-grade systems. We work across the full stack, from frontend to infra, solving for real-time orchestration, tool integration, and complex workflow execution. This is a high-trust, high-impact environment where engineers move fast, ship often, and help shape both the product and the platform as we scale. If you care about building with clarity, speed, and depth, you'll do your best work here.
 
 
 
 About The Role
 
 
 
 We're looking for a Senior Backend Engineer to join our team in Karachi. In this role, you'll build and scale the systems that power Beam's agentic platform, designing APIs, managing data flows, and ensuring our infrastructure can handle real-world complexity at scale.
 
 
 You'll work closely with frontend, product, and infrastructure teams to translate requirements into robust backend systems. This role is hands-on and execution-focused, you'll be writing production code, solving performance challenges, and contributing to architectural decisions that directly impact how our platform evolves.
 
 
 
 Responsibilities
 
 
 
 <ul>
 <li>
 Design and build scalable backend systems that support real-time workflows and agent orchestration
 </li>
 <li>
 Develop APIs and services that are secure, reliable, and easy to integrate across the platform
 </li>
 <li>
 Write clean, maintainable code with strong documentation and thoughtful design patterns
 </li>
 <li>
 Optimize system performance to handle high data volumes and concurrent usage
 </li>
 <li>
 Build and manage data storage layers, including relational and NoSQL databases, caching, and search systems
 </li>
 <li>
 Collaborate with frontend teams using OpenAPI specs to enable seamless integrations
 </li>
 <li>
 Review code, identify issues early, and maintain a high bar for engineering quality
 </li>
 <li>
 Troubleshoot production issues and ensure system reliability under real-world conditions
 </li>
 <li>
 Contribute to improving development workflows, tooling, and team efficiency
 </li>
 <li>
 Stay current with backend technologies and apply new ideas where they create leverage
 
 
 </li>
 </ul>
 
 Requirements
 
 
 
 <ul>
 <li>
 Bachelor's degree in Computer Science, Software Engineering, or a related field
 </li>
 <li>
 4-5 years of experience building scalable backend systems or platforms
 </li>
 <li>
 Strong proficiency in at least one backend language (TypeScript/Node.js, Python, or Golang)
 </li>
 <li>
 Solid experience with SQL (PostgreSQL/MySQL) and NoSQL (MongoDB/DynamoDB) databases
 </li>
 <li>
 Experience working with cloud platforms such as AWS, Azure, or Google Cloud
 </li>
 <li>
 Familiarity with containerization tools like Docker and Kubernetes
 </li>
 <li>
 Experience using caching systems such as Redis
 </li>
 <li>
 Strong understanding of microservices architecture and event-driven systems
 </li>
 <li>
 Ability to collaborate effectively across teams and communicate technical ideas clearly
 </li>
 <li>
 Self-driven, detail-oriented, and motivated to build high-quality systems
 
 
 </li>
 </ul>
 
 Nice to Have
 
 
 
 <ul>
 <li>
 Experience with NestJS for building backend services
 </li>
 <li>
 Familiarity with CI/CD pipelines (GitHub Actions, Jenkins, AWS CodePipeline, etc.)
 </li>
 <li>
 Experience with message brokers and queueing systems (Kafka, RabbitMQ, AWS SNS/SQS)
 </li>
 <li>
 Exposure to infrastructure-as-code tools like Terraform, AWS CDK, or Pulumi
 </li>
 <li>
 Understanding of domain-driven design (DDD) and test-driven development (TDD)
 </li>
 <li>
 Strong grasp of SOLID principles in software design
 </li>
 <li>
 Experience working in Agile or Scrum environments
 
 
 </li>
 </ul>
 
 Benefits
 
 
 
 At Beam, we're building an environment where ambitious people can do their best work, with clarity, purpose, and room to grow. We're thoughtful about what we build, how we work, and who we hire. The problems we're solving are real. The systems we're building are complex. And the people here care deeply, about craft, about speed, and about doing work that actually matters. You won't find rigid hierarchies or endless process here. You'll find high trust, high standards, and a team driven by curiosity, ownership, and long-term thinking.
 
 
 Our culture is shaped by our values in action:
 
 
 <ul>
 <li>
 AI-native thinking: Every teammate thinks in agentic workflows, uses AI tools daily, and looks for leverage through automation. AI isn't just what we build, it's how we operate
 </li>
 <li>
 Customer obsession: We build with urgency and empathy, speak to customers early and often, and measure success through their outcomes
 </li>
 <li>
 Speed as a habit: We ship fast, learn faster, and prioritize unblocking over perfection. We favour small experiments with tight feedback loops
 </li>
 <li>
 Leverage-focused execution: We hire high-impact players, invest in the 20% that drives 80% of results, and value candid feedback
 </li>
 <li>
 Highly aligned, loosely coupled: We align on outcomes, not tasks. You'll work independently, but never in isolation
 </li>
 <li>
 Data-driven, human-guided: We seek clarity over comfort, speak up early, and use feedback to grow together
 
 
 </li>
 </ul>
 If this sounds like the kind of work you want to do and the kind of team you want to grow with, we'd love to hear from you!
</div>

Senior Backend Engineer

Stormfiber

Job description:We&rsquo;re Hiring: Software Engineer (Backend /Laravel/PHP/JS) - KarachiJoin our dynamic team and contribute to building high-quality web applications! We are seeking a passionate and detail-oriented Software Engineer to play a key role in our development processes.Responsibilities<ul><li>Develop medium to large scale web applications using PHP (MVC frameworks, such as Laravel, Yii2, CodeIgniter), HTML5, CSS3, Bootstrap and MySQL.</li><li>Work in distributed system environment and implement transaction management, queuing system and state tracking.</li><li>Ensure compliance with policies, procedures and controls of Information security.</li><li>Assist the team lead in designing the application and database architecture.</li></ul>Requirements<ul><li>Masters / Bachelors in Computer Science with minimum 3.0 CGPA.</li><li>Strong Object Oriented Programming concepts.</li><li>1-5 years of relevant experience in web application development in PHP using MVC framework.</li><li>Experience of working with relational databases.</li><li>Experience / understanding of version control system (GIT/GitLab).</li></ul>Job Types: Full-time, FresherApplication Question(s):<ul><li>What is Your Current Salary</li><li>What is Your Expected Salary</li><li>What is Your CGPA</li><li>What is Your Graduation Year</li></ul>Work Location: In person

Software Engineer (Backend /Laravel/PHP/JS)

Al Rafay Consulting

Job Overview:We are looking for a Senior Python Developer to assist in building and maintaining backend services, APIs, and automation scripts for enterprise applications. The role involves collaborating with senior developers and AI/ML engineers to implement features, integrate tools, and support solutions such as chatbots and data automation.Key Responsibilities<ul><li>Develop Python-based backend services for AI-powered enterprise applications.</li><li>Build and maintain APIs, automation scripts, and data pipelines.</li><li>Collaborate with AI/ML engineers to integrate NLP, OCR, and LLMs into business tools.</li><li>Work on intelligent solutions like chatbot frameworks, document automation, and enterprise assistants.</li><li>Integrate with Microsoft technologies (SharePoint Online, Power Automate, Azure Cognitive Services).</li><li>Use Azure DevOps for CI/CD and project lifecycle tracking.</li><li>Participate in sprints, peer code reviews, and collaborative design sessions.</li></ul>Required Skills &amp; Qualifications<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or related field.</li><li>6&ndash;8 years of experience with Python (Flask/Django or similar frameworks).</li><li>Solid understanding of REST APIs, microservices, and backend architecture.</li><li>Experience with AI tools: NLP, OCR, or integration with language models (OpenAI, Azure OpenAI).</li><li>Familiarity with Microsoft ecosystem (Azure Functions, SharePoint, Power Platform).</li><li>Good understanding of databases (SQL/NoSQL), data extraction, and automation.</li><li>Version control systems (e.g., Git) and CI/CD tools (Azure DevOps) experience.</li><li>Strong debugging, analytical, and communication skills.</li></ul>Preferred Qualifications<ul><li>Experience with Microsoft Cognitive Services, Azure OpenAI, or Power Automate flows.</li><li>Familiarity with chatbot frameworks (e.g., Rasa, Bot Framework).</li><li>Understanding of information security and data privacy in enterprise environments.</li><li>Exposure to enterprise-scale automation or document processing projects.</li></ul>Experience:<ul><li>IT: 7 years (Required)</li></ul>Work Location: In person

Senior Python Developer

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)

Purpose Path

Senior Full-Stack Engineer / Architect About Purpose PathPurpose Path is a digital product and marketing agency building custom web, mobile, and desktop applications across fintech, automotive, and real estate. We focus on high ownership, fast execution, and leveraging modern AI tools to build scalable products.About the RoleWe are hiring a Senior Full-Stack Engineer to lead end-to-end development of production-grade applications. You will work directly with leadership, own architecture decisions, and build high-impact systems including a real-time fintech platform.Key Responsibilities<ul><li>Design and build full-stack applications (React + Node.js)</li><li>Architect scalable systems for real-time, data-heavy applications</li><li>Develop and manage PostgreSQL databases</li><li>Set up and manage CI/CD pipelines &amp; deployments</li><li>Work with Linux servers, cloud, and on-prem environments</li><li>Collaborate with design team (Figma &rarr; production UI)</li><li>Integrate third-party systems (APIs, trading systems, etc.)</li><li>Use AI tools (ChatGPT, Copilot, etc.) in development</li><li>Own code in production (debugging, performance, improvements)</li><li>Mentor junior engineers</li></ul>Requirements<ul><li>6+ years of full-stack development experience</li><li>Strong expertise in React &amp; Node.js</li><li>Solid experience with PostgreSQL (queries, indexing, schema design)</li><li>Experience building scalable, multi-user applications</li><li>Hands-on with CI/CD, deployments, and system design</li><li>Comfortable with Linux, APIs, and system integrations</li><li>Strong communication &amp; ownership mindset</li></ul>Nice to Have<ul><li>Experience in fintech / trading platforms</li><li>Experience with React Native or mobile apps</li><li>Exposure to AI/LLM integrations (OpenAI, etc.)</li><li>Experience with low-latency systems</li></ul>What We&rsquo;re Looking For<ul><li>Strong problem-solver with high ownership</li><li>Able to work independently without micromanagement</li><li>Comfortable in a fast-paced, multi-project environment</li><li>Clear communicator with both technical &amp; non-technical teams</li></ul>Job Type: Full-timeApplication Question(s):<ul><li>Do you have 6+ years of experience building full-stack applications in production environments?</li><li>Have you worked extensively with both React (frontend) and Node.js (backend)?</li><li>Have you independently designed and delivered a full application from concept to production?</li><li>Briefly describe one system you architected (your role, tech stack, and key challenges).</li><li>Have you built or worked on real-time or data-intensive applications (multi-user systems, dashboards, trading platforms, etc.)?</li><li>Do you have hands-on experience with CI/CD pipelines and deploying applications to production?</li><li>Please share your GitHub profile and links to 2&ndash;3 production-level projects, along with your role in each.</li><li>What is your current monthly salary (PKR)?</li><li>What is your expected monthly salary (PKR)?</li></ul>Work Location: In person

Senior Full-Stack Engineer / Architect

Explore 836+ Senior software engineer ii backend contractual in Karachi this April. Find roles across top companies and apply now to boost your career.

836 senior software engineer ii backend contractual jobs In Karachi

Senior Software Engineer - II (Backend) | Contractual

Senior Software Engineer - II (Backend) | Contractual

Senior Backend Engineer

Software Engineer (Backend /Laravel/PHP/JS)

Senior Python Developer

Senior Full Stack Developer (React / Node.js)

Senior Full-Stack Engineer / Architect