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

.net developer intern

senior stack engineer

Kuza Ventures

Position: Senior Full Stack EngineerIndustry: ITShift Timings: 5:00 pm -2:00 am (Pakistan Time)Location: KarachiEducation: Bachelor&rsquo;s degree in Computer Science, Software Engineering, or equivalent experience.Experience: 5+ years of professional experience as a Full Stack Engineer or Software Developer.Responsibilities:-Design, develop, and maintain scalable, secure, and performant web applications using .NET Core and modern SPA frameworks.-Build and optimize RESTful APIs, microservices, and integration layers for internal and external systems.-Collaborate closely with Product Managers, UI/UX designers, and QA engineers to deliver high-quality software.-Implement responsive, accessible, and intuitive user interfaces using React, Angular, or Vue.js.-Write efficient and maintainable SQL queries, stored procedures, and database schemas.-Participate in code reviews, architecture discussions, and design sessions.-Apply modern development practices such as CI/CD, automated testing (TDD/BDD), and observability.-Contribute to modernization efforts from legacy .NET applications to .NET Core microservices and React-based front ends.-Troubleshoot production issues and participate in on-call rotations when required.-Mentor junior engineers and contribute to a culture of continuous improvement and technical excellence.-Solid understanding of relational databases (SQL Server or PostgreSQL) and writing optimized SQL.-Experience with Git, CI/CD pipelines, Docker, and cloud environments (AWS/Azure).-Familiarity with agile methodologies such as Scrum or Kanban.Application Question(s):<ul><li>Are you comfortable working the 5:00 pm &ndash; 2:00 am shift (Pakistan Time)?</li><li>Have you worked with .NET Core in building scalable web applications?</li><li>Do you have hands-on experience with modern SPA frameworks such as React, Angular, or Vue.js?</li><li>Have you designed and optimized RESTful APIs or microservices?</li><li>Are you proficient in writing SQL queries, stored procedures, and designing database schemas?</li><li>Do you have experience with relational databases such as SQL Server or PostgreSQL?</li><li>Have you worked with Git for version control?</li><li>Do you have experience setting up or working with CI/CD pipelines?</li><li>Have you used Docker for containerization?</li><li>Do you have experience working in cloud environments such as AWS or Azure?</li><li>Have you worked in agile environments using Scrum or Kanban?</li><li>Do you have experience collaborating with Product Managers, UI/UX designers, and QA engineers?</li><li>Have you mentored junior engineers in previous roles?</li></ul>Education:<ul><li>Bachelor's (Required)</li></ul>Experience:<ul><li>Full Stack Engineering: 5 years (Required)</li></ul>Work Location: Remote

Senior Full Stack Engineer

The Ghani IT Solutions

Role Overview:We are seeking an exceptionally skilled Senior Full-Stack Developer to lead the development of a mission-critical, high-performance intelligence platform. You will be responsible for building complex, real-time data visualization systems and integrating advanced geospatial layers with a custom AI-driven communication engine. This role requires a &quot;T-shaped&quot; engineer with deep expertise across the entire stack&mdash;from low-latency backends and high-concurrency data processing to sophisticated, interactive frontends.Key Responsibilities:- Full-Stack Architecture: Design and implement scalable, secure, and high-availability web applications from scratch using modern frameworks.- Geospatial Engineering: Develop multi-dimensional GIS (Geographic Information System) layers to visualize dynamic footprints and localized data zones using advanced mapping tools.- Real-Time Data Integration: Architect custom communication gateways and manage full-duplex data streaming via high-speed WebSockets.- Intelligence Dashboards: Build sophisticated, real-time dashboards that aggregate disparate data feeds into intuitive, actionable visual intelligence for monitoring and decision-making.- AI &amp; NLP Integration: Collaborate with AI engineers to integrate LLM-driven insights, automated data parsing, and intelligent alerting systems into the core platform.- Database Management: Design and optimize complex schemas for both relational and geospatial databases to ensure sub-second query performance on large datasets.Technical Requirements:- Frontend: Mastery of React.js or Next.js with expertise in advanced state management and real-time data visualization.- Backend: Advanced proficiency in Node.js (TypeScript) or Python (FastAPI/Django) for building high-concurrency microservices.- Geospatial Tools: Professional-level experience with ArcGIS API for JavaScript, Mapbox GL JS, or OpenLayers.- Databases: Deep knowledge of PostgreSQL with PostGIS for executing complex spatial queries. Familiarity with NoSQL and Redis for real-time caching is a plus.- AI Awareness: Solid understanding of integrating AI/ML models, RAG (Retrieval-Augmented Generation) workflows, and working with Vector Databases.- Infrastructure: Proven experience with Docker, Kubernetes, and managing real-time data streaming or communication protocols on AWS, GCP, or Azure.- Language Proficiency: Expert-level command over multiple programming languages (JavaScript/TypeScript, Python, and SQL).Location: DHA Phase 6, Karachi Shift: MorningWork Location: In person

Senior Full-Stack Developer (Real-Time Systems & Intelligence Platforms)

Nao Medical

<div><h2 class="jobSectionHeader">About the Company</h2>

Nao Medical is a healthcare organization focused on delivering accessible, high-quality care through a combination of clinical excellence and operational innovation.

As part of our broader ecosystem, we work closely with our sister company, Ajaia, a rapidly growing AI consultancy and product studio dedicated to helping organizations move from experimentation to real results. Ajaia operates across four core pillars: AI Strategy and Advisory, AI Engineering and Automation, Workforce Training and Enablement, and Custom Product Development.

While this role is posted under Nao Medical, the position is for Ajaia. The selected candidate will work directly within Ajaia&rsquo;s team and contribute to enterprise AI initiatives, product development, and client engagements.

Ajaia also builds proprietary AI products, copilots, and vertical solutions that solve high-value industry problems. This dual model allows the team to translate hands-on implementation experience into scalable products while continuously refining its approach through real-world deployment.

Together, Nao Medical and Ajaia combine deep operational experience in healthcare with advanced AI execution, enabling organizations to deploy secure, compliant, and high-impact solutions that drive measurable value.

Mission: Help organizations win the AI moment. 


Position Overview

Ajaia is hiring a Senior Full-Stack Designer to own execution across UX/UI, websites, and client-facing design collateral from concept to handoff. This role is for a high-output designer who can move between product interface work, growth surfaces, and brand communication.

Every role at Ajaia is AI-forward. We expect candidates to use AI in daily workflows across research, ideation, drafting, design iteration, quality checks, and delivery acceleration. AI usage is a core execution requirement, not optional tooling.
<h2 class="jobSectionHeader">
Primary Responsibilities</h2>
<ul><li>
Design and ship UX/UI flows, responsive web pages, and conversion-focused visuals.
</li><li>
<div>Build polished client-ready materials including presentations, one-pagers, and proposal visuals.</div>
</li><li>
<div>Use AI-assisted workflows to speed ideation, variant testing, and iteration.</div>
</li><li>
<div>Ensure consistency between product surfaces and brand communication.</div>
</li><li>
<div>Collaborate with engineering and growth teams for clean handoff and implementation clarity.</div>
</li><li>
Mentor or review junior designers as needed.
</li></ul>
<h2 class="jobSectionHeader">Job Requirements</h2>
<ul><li>
1-5 years of professional experience across product design, web design, and visual communication.
</li><li>
<div>Portfolio required with examples spanning UI, websites, and client/business assets.</div>
</li><li>
<div>Strong Figma proficiency and high attention to visual detail.</div>
</li><li>
<div>AI-native work habits across concepting, drafting, and QA.</div>
</li><li>
<div>Familiarity with Canva and collaborative design workflows.</div>
</li><li>
<div>Preferred: front-end familiarity (HTML/CSS, design-to-dev handoff, or implementation support).</div>
</li><li>
Ability to prioritize and execute in fast-moving, cross-functional teams.
</li></ul>
<h2 class="jobSectionHeader">Schedule and Location</h2>

Remote role with broader location eligibility based on hiring and compliance requirements.

Eastern Time, 9:00 AM - 5:00 PM, Monday-Friday, including holidays.
<h2 class="jobSectionHeader">
Technical Requirements</h2>
<ul><li>
Reliable wired internet connection (100 Mbps minimum).
</li><li>
<div>Computer/laptop: Intel Core i5 or Ryzen 5, 8GB RAM minimum, 128GB free storage.</div>
</li><li>
<div>Dual-screen setup preferred.</div>
</li><li>
<div>Windows 10 or macOS (latest).</div>
</li><li>
<div>1080p webcam and microphone.</div>
</li><li>
Backup systems for power and internet outages.
</li></ul>
<h2 class="jobSectionHeader">Compensation and Benefits</h2>
<h3 class="jobSectionHeader">Compensation</h3>
<ul><li>
Base salary (yearly): USD 7,000-10,000 (PHP 409,500-585,000 / PKR 1,960,000-2,800,000)
</li><li>
<div>Performance bonus (yearly): USD 0-4,000 (PHP 0-234,000 / PKR 0-1,120,000)</div>
</li><li>
<div>Total cash compensation (yearly): USD 7,000-14,000 (PHP 409,500-819,000 / PKR 1,960,000-3,920,000)</div>
</li><li>
Salary and total compensation depend on experience, portfolio strength, and demonstrated performance.
</li></ul>
<h3 class="jobSectionHeader">Benefits</h3>
<ul><li>
Competitive base salary + performance incentives
</li><li>
<div>Remote work with earned flexibility</div>
</li><li>
<div>Professional development opportunities</div>
</li><li>
Paid time off (PTO)
</li></ul>
<h2 class="jobSectionHeader">Why Join Ajaia</h2>

You will work on a wide range of high-visibility design problems, from product workflows to external narratives used in client delivery and growth. The role offers practical ownership, rapid shipping, and direct influence on business outcomes.

If you like varied design work, close partnership with technical teams, and measurable impact in an AI-first company, this role is built for that profile.

At Ajaia, you have a unique opportunity to work at the forefront of the artificial intelligence frontier and contribute to real innovation that reaches production. We expect all team members to be AI-native practitioners who actively use AI in their daily workflows to improve speed, quality, and outcomes.

Experience the Ajaia difference. Let's build what's next.</div>

Senior Full-Stack Designer

UTF Labs

Are you a passionate and motivated developer eager to grow your career in full-stack development? We&rsquo;re looking for a Fresh Graduate Full Stack Engineer with hands-on experience through freelance work or personal projects. If you&rsquo;re excited about building modern, high-performance web applications and want to work with the latest technologies, we&rsquo;d love to meet you!What You&rsquo;ll Do:<ul><li>Full Stack Development: Assist in designing, developing, and maintaining full-stack web applications using NextJS, React, and TypeScript.</li><li>NextJS Projects: Learn and contribute to features like Server-Side Rendering (SSR), Static Site Generation (SSG), and API routes for optimized performance.</li><li>Frontend Development: Create clean, responsive, and user-friendly interfaces using React and TailwindCSS.</li><li>Backend Support: Work on RESTful APIs, integrate with PostgreSQL, and contribute to backend logic under the guidance of senior engineers.</li><li>Database Management: Understand and assist in designing efficient database schemas and writing optimized queries.</li><li>TypeScript Coding: Write maintainable, type-safe code and follow best practices for scalability and performance.</li><li>Testing &amp; Debugging: Participate in testing and debugging to improve product quality.</li><li>Version Control: Use Git and collaborative workflows on GitHub/GitLab.</li><li>Collaboration: Work closely with designers and senior developers to turn ideas into working features.</li><li>Learning &amp; Growth: Continuously explore new tools and frameworks to enhance your development skills.</li></ul>What We&rsquo;re Looking For:<ul><li>Education: Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field.</li><li>Experience: Fresh graduate with freelance, internship, or personal project experience in web development.</li><li>Technical Knowledge:</li><li>Basic to intermediate knowledge of NextJS, React, and TypeScript.</li><li>Understanding of PostgreSQL or any relational database.</li><li>Familiarity with TailwindCSS or modern CSS frameworks.</li><li>Comfortable using Git for version control.</li><li>Mindset:</li><li>Quick learner with a problem-solving attitude.</li><li>Passionate about writing clean, efficient, and reusable code.</li><li>Strong communication and teamwork skills.</li><li>Eagerness to grow under mentorship and take on new challenges.</li></ul>Why Join Us?<ul><li>Career Growth: Learn directly from experienced engineers and work on real-world projects.</li><li>Innovative Environment: Get hands-on experience with the latest web technologies.</li><li>Supportive Team: Collaborate with a team that values learning, feedback, and improvement.</li><li>Flexible Culture: Enjoy a friendly, flexible, and growth-oriented workplace.</li></ul>Job Type: Full-timePay: Rs50,000.00 - Rs65,000.00 per monthWork Location: In person

Junior Full Stack Engineer (NextJS, React, TypeScript)

Confiz

<div>We are seeking an exceptional Senior AI Engineer to join our team and drive the development of cutting-edge AI solutions that includes conversational, Agentic AI's. This role focuses on building advanced conversational AI systems, implementation AI Agents across different use cases, implementing sophisticated RAG architectures, and deploying production-grade voice AI applications. The ideal candidate will have deep expertise in LLM technologies and a proven track record of delivering scalable AI solutions.
Key Responsibilities
<ul><li>Design and implement advanced Retrieval-Augmented Generation (RAG) systems with sophisticated chunking strategies, multi-vector retrieval, and hybrid search architectures</li>
<li>Develop and optimize conversational AI agents with complex multi-turn dialogue management and context awareness</li>
<li>Build production-ready voicebot solutions integrating real-time speech processing pipelines</li>
<li>Architect and deploy Text-to-Speech (TTS) and Speech-to-Text (STT) systems with low latency and high accuracy</li>
<li>Design and Deploy PROD grade AI Agents that can scale up for various use cases.</li>
<li>Fine-tune large language models using various techniques.</li>
<li>Optimize model performance through prompt engineering, few-shot learning, and retrieval strategies</li>
<li>Implement evaluation frameworks and metrics for LLM outputs and conversational quality</li>
<li>Develop custom training pipelines for domain adaptation and specialized use cases</li>
<li>Design scalable AI infrastructure supporting real-time inference and high-throughput batch processing</li>
<li>Implement efficient vector databases and semantic search systems (Pinecone, Azure Search)</li>
<li>Build monitoring and observability solutions for AI systems in production</li>
<li>Stay current with latest developments in LLM architectures, RAG techniques, and voice AI technologies</li>
<li>Experiment with emerging models and frameworks to evaluate applicability to business problems</li>
<li>Contribute to technical documentation, best practices, and knowledge sharing within the team</li>
<li>Prototype and validate new AI capabilities through POCs and pilots</li>
</ul>
Required Qualifications
<ul><li>5+ years of software engineering experience with 4+ years focused on AI/ML engineering</li>
<li>Strong proficiency in Python and ML frameworks (PyTorch, TensorFlow)</li>
<li>Master's or PhD in Computer Science, AI/ML, or related technical field</li>
<li>Experience with open-source LLMs (Llama, Mistral, etc.) and local deployment</li>
<li>Knowledge of reinforcement learning from human feedback (RLHF) and DPO</li>
<li>Familiarity with multi-modal AI systems (vision-language models, audio-visual understanding)</li>
<li>Experience with real-time streaming architectures and WebRTC</li>
<li>Published research or contributions to open-source AI projects</li>
<li>Experience with GPU optimization and distributed training</li>
<li>Knowledge of voice biometrics, speaker diarization, or emotion recognition</li>
<li>Background in linguistics, phonetics, or speech processing</li>
<li>Deep hands-on experience with advanced RAG systems:</li>
<li>Multi-stage retrieval architectures (hybrid search, re-ranking)</li>
<li>Embedding models and vector similarity search</li>
<li>Document processing, chunking strategies, and metadata filtering</li>
<li>Query understanding and retrieval optimization</li>
<li>Multi-turn dialogue management</li>
<li>Intent recognition and slot filling</li>
<li>Context tracking and memory management</li>
<li>Integration with LLM APIs (OpenAI, Anthropic, Cohere, etc.)</li>
<li>Production experience with voicebot development:</li>
<li>Real-time audio streaming and processing</li>
<li>Voice activity detection (VAD)</li>
<li>End-to-end latency optimization</li>
<li>Integration of STT, dialogue management, and TTS components</li>
<li>Expertise in TTS and STT technologies:</li>
<li>Modern TTS systems (ElevenLabs, Soniox, Azure Speech)</li>
<li>STT engines ( Deepgram, AssemblyAI)</li>
<li>Audio preprocessing and enhancement</li>
<li>Voice cloning and customization</li>
<li>Strong experience with LLM fine-tuning:</li>
<li>Proficiency with cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes)</li>
<li>Experience with MLOps tools and practices (MLflow, Weights &amp; Biases, experiment tracking)</li>
<li>Strong understanding of API design, microservices architecture, and system integration</li>
<li>Knowledge of version control, CI/CD pipelines, and deployment automation</li>
</ul>
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.
What makes Confiz stand out is our focus on processes and culture. Confiz is ISO 9001:2015 (QMS), ISO 27001:2022 (ISMS), ISO 20000-1:2018 (ITSM), ISO 14001:2015 (EMS), ISO 45001:2018 (OHSMS) Certified. We have a vibrant culture of learning via collaboration and making workplace fun.
People who work with us work with cutting-edge technologies while contributing success to the company as well as to themselves.
To know more about Confiz Limited, visit: https://www.linkedin.com/company/confiz-pakistan/</div>

Senior AI Engineer

<div>We are looking for a Senior Full Stack PHP Engineer with 3+ years of experience to build and modernize enterprise-grade web applications. The role involves working across the Laravel backend and a server-driven frontend using Blade, Livewire, and Alpine.js, delivering secure, scalable, and maintainable internal platforms.
You will work closely with architects, QA, and product stakeholders to implement configurable business workflows, integrations, and data-driven dashboards.
 Responsibilities:
<ul><li>Design, develop, and maintain full-stack features using Laravel (PHP 8.3+).</li>
<li>Build server-driven UI using Blade templates, Livewire components, and Alpine.js.</li>
<li>Implement role-based access control (RBAC), authorization guards, audit logging, and security hardening.</li>
<li>Design and consume data ingestion APIs (e.g., Databricks, SFTP-based integrations).</li>
<li>Develop and maintain config-driven modules (KPIs, territories, channels, commissions, logistics workflows).</li>
<li>Build dashboards, reporting views, and KPI visualizations.</li>
<li>Work with PostgreSQL (Amazon RDS) for schema design, query optimization, and migrations.</li>
<li>Integrate file storage and document workflows using AWS S3.</li>
<li>Implement background jobs, scheduled tasks, and batch processing (e.g., CSV generation, email workflows).</li>
<li>Write clean, testable code and contribute to CI/CD pipelines, automated testing, and E2E testing.</li>
<li>Participate in sprint planning, daily standups, demos, and code reviews.</li>
<li>Support UAT, production readiness, and post-release stabilization.</li>
</ul>
Requirements:
<ul><li>3+ years of hands-on experience in PHP web development.</li>
<li>Strong experience with Laravel (architecture, middleware, queues, jobs, policies).</li>
<li>Solid experience building full-stack applications using:</li>
<li>Blade</li>
<li>Livewire</li>
<li>Alpine.js</li>
<li>Tailwind CSS or Bootstrap</li>
<li>Strong understanding of RESTful APIs and backend integrations.</li>
<li>Experience with PostgreSQL/MySQL, schema design, indexing, and performance tuning.</li>
<li>Familiarity with authentication &amp; authorization, including RBAC and audit logging.</li>
<li>Experience using Git, pull requests, and collaborative development workflows.</li>
<li>Understanding of CI/CD pipelines, automated testing, and deployment practices.</li>
<li>Ability to work independently in a structured, sprint-based delivery model.</li>
</ul>
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.
What makes Confiz stand out is our focus on processes and culture. Confiz is ISO 9001:2015 (QMS), ISO 27001:2022 (ISMS), ISO 20000-1:2018 (ITSM), ISO 14001:2015 (EMS), ISO 45001:2018 (OHSMS) Certified. We have a vibrant culture of learning via collaboration and making workplace fun.
People who work with us work with cutting-edge technologies while contributing success to the company as well as to themselves.
To know more about Confiz Limited, visit: https://www.linkedin.com/company/confiz-pakistan/</div>

Senior Full Stack PHP Engineer

Deliverydevs (Private) Limited

Job SummaryThe DevOps Lead is responsible for designing, implementing, and managing scalable infrastructure, CI/CD pipelines, and automation strategies. This role bridges development and operations, ensuring high availability, performance, and security of systems while leading a team of DevOps engineers.Key Responsibilities1. Leadership &amp; Team Management<ul><li>Lead, mentor, and manage the DevOps team.</li><li>Define DevOps strategy, roadmap, and best practices.</li><li>Collaborate with Development, QA, and IT teams.</li><li>Conduct performance evaluations and training plans.</li></ul>2. CI/CD &amp; Automation<ul><li>Design and maintain CI/CD pipelines (e.g., Jenkins, GitHub Actions, GitLab CI).</li><li>Automate build, test, and deployment processes.</li><li>Improve deployment frequency and reduce failure rates.</li></ul>3. Cloud Infrastructure Management<ul><li>Architect and manage cloud environments (AWS, Azure, GCP).</li><li>Ensure scalability, reliability, and cost optimization.</li><li>Implement Infrastructure as Code (IaC) using Terraform, CloudFormation.</li></ul>4. System Monitoring &amp; Reliability<ul><li>Set up monitoring, logging, and alerting systems (Prometheus, Grafana, ELK stack).</li><li>Ensure system uptime and performance optimization.</li><li>Lead incident response and root cause analysis (RCA).</li></ul>5. Security &amp; Compliance<ul><li>Implement DevSecOps practices.</li><li>Ensure secure configurations, access control, and vulnerability management.</li><li>Maintain compliance with industry standards and policies.</li></ul>6. Containerization &amp; Orchestration<ul><li>Manage Docker containers and Kubernetes clusters.</li><li>Optimize container deployment and scaling.</li></ul>7. Collaboration &amp; Process Improvement<ul><li>Promote DevOps culture across the organization.</li><li>Continuously improve workflows and operational efficiency.</li><li>Introduce new tools and technologies where beneficial.</li></ul>Required Qualifications<ul><li>Bachelor&rsquo;s degree in Computer Science, IT, or related field.</li><li>5&ndash;10 years of experience in DevOps / System Engineering.</li><li>2+ years in a leadership or senior role.</li></ul>Technical Skills<ul><li>CI/CD Tools: Jenkins, GitLab CI/CD, GitHub Actions</li><li>Cloud Platforms: AWS, Azure, or GCP</li><li>Scripting: Bash, Python, or PowerShell</li><li>IaC Tools: Terraform, Ansible, CloudFormation</li><li>Containers: Docker, Kubernetes</li><li>Monitoring: Prometheus, Grafana, ELK Stack</li><li>Version Control: Git</li></ul>Soft Skills<ul><li>Strong leadership and decision-making abilities</li><li>Excellent communication and stakeholder management</li><li>Problem-solving and analytical thinking</li><li>Ability to work under pressure</li></ul>KPIs / Success Metrics<ul><li>Deployment frequency</li><li>Change failure rate</li><li>Mean Time to Recovery (MTTR)</li><li>System uptime and reliability</li><li>Infrastructure cost optimization</li></ul>Preferred Qualifications<ul><li>Certifications (AWS Certified DevOps Engineer, Kubernetes, Azure DevOps)</li><li>Experience with microservices architecture</li><li>Exposure to Agile/Scrum methodologies</li></ul>Job Type: Full-timePay: From Rs200,000.00 per monthEducation:<ul><li>Bachelor's (Preferred)</li></ul>Location:<ul><li>Karachi (Preferred)</li></ul>Work Location: In person

DevOps Lead

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