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.net software developer – web & api Jobs in Karachi

.net software developer – web & api

ai applications engineer

senior software engineer

Careem

<div>
 
 About the Company
 
 
 
 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.
 
 
 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.
 
 
 
 
 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.
 
 
 
 
 
 What You'll Do
 
 
 
 <ul>
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 Work closely with other engineers on the team to build highly scalable and robust backend applications and services.
 </li>
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 Write high quality, performant and reliable code while working on defined tasks/bugs independently.
 </li>
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 Work independently to understand functional specifications and deliver complete features.
 </li>
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 Participate in the on-call rotation and be willing to jump in and help resolve any incidents within the defined SLA.
 </li>
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 Participate in team agile and engineering practices and contribute to their continuous evolution.
 
 
 </li>
 </ul>
 
 What You'll Need
 
 
 
 <ul>
 <li>
 4+ years of professional software development experience.
 </li>
 <li>
 Bachelor's Degree in Computer Science or other related technical field.
 </li>
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 Working experience with at least one modern object-oriented programming language: Java OR Golang
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 Working knowledge of Computer Science fundamentals including: object-oriented design, data structures and algorithms.
 </li>
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 Experience operating online systems reliably including deploying changes to production in live systems.
 
 
 </li>
 </ul>
 
 Preferred Skills &amp; Qualifications
 
 
 
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 <li>
 Master's Degree in Computer Science or other related technical field.
 </li>
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 Experience with Java Spring, Golang and Cloud platforms such as Azure, Google Cloud Platform and AWS.
 </li>
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 Experience working with container technology including Docker and Kubernetes.
 </li>
 <li>
 Experience working with relational and non-relational database systems.
 </li>
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 Experience applying professional software engineering best practices, including coding standards, code reviews, source control management, build processes, testing, and operations.
 
 
 </li>
 </ul>
 
 What We&rsquo;ll Provide You
 
 
 
 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:
 
 
 <ul>
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 Work and learn from great minds by joining a community of inspiring colleagues.
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 Put your passion to work in a purposeful organisation 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.
 </li>
 <li>
 Work 4 days a week in the 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

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>

Senior Software Engineer - II (Backend) | Contractual

Smart Working

<div>
 
 
 
 About Smart Working
 
 
 
 
 At Smart Working, we believe your job should not only look right on paper but also feel right every day. This isn&rsquo;t just another remote opportunity - it&rsquo;s about finding where you truly belong, no matter where you are. From day one, you&rsquo;re welcomed into a genuine community that values your growth and well-being.
 
 
 
 Our mission is simple: to break down geographic barriers and connect skilled professionals with outstanding global teams and products for full-time, long-term roles. We help you discover meaningful work with teams that invest in your success, where you&rsquo;re empowered to grow personally and professionally.
 
 Join one of the highest-rated workplaces on Glassdoor and experience what it means to thrive in a truly remote-first world.
 
 
 
 
 About the Role
 
 
 
 
 As a
 
 Senior Security Engineer
 
 , you will play a critical role in designing and implementing security controls across mobile applications, backend services, and web platforms. You will help ensure that systems are secure by design, protecting both customer data and platform integrity while meeting strict internal security standards and regulatory requirements.
 
 Working closely with engineering teams, you will contribute to embedding security practices across the development lifecycle, from secure coding and threat modelling to DevSecOps and infrastructure security. You will help identify vulnerabilities, assess risk, and implement proactive security measures that strengthen the organisation&rsquo;s overall security posture.
 
 
 
 This role is ideal for a security engineer who enjoys working at the intersection of application security, secure architecture, and engineering enablement, helping development teams build resilient and compliant systems.
 
 
 
 
 
 
 
 
 Responsibilities
 
 <ul>
 
 <li>
 Design and implement security controls for mobile applications, backend services, and web platforms
 </li>
 
 <li>
 Conduct threat modelling and risk assessments for new and existing systems
 </li>
 
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 Embed secure coding practices across engineering teams, aligned with OWASP standards
 </li>
 
 <li>
 Partner with engineers to ensure security is integrated throughout the software development lifecycle (SDLC)
 </li>
 
 <li>
 Identify and remediate application vulnerabilities and security risks
 </li>
 
 <li>
 Contribute to the implementation and improvement of DevSecOps practices
 </li>
 
 <li>
 Provide guidance on secure architecture and secure software design
 </li>
 
 <li>
 Support the development and enforcement of security policies, controls, and engineering standards
 </li>
 
 <li>
 Improve the organisation&rsquo;s application security posture through proactive security reviews and testing
 </li>
 
 <li>
 Work with teams to ensure systems meet internal security standards and external regulatory requirements
 </li>
 
 <li>
 Provide security expertise for infrastructure components including containers and cloud-native environments
 </li>
 
 <li>
 Contribute to incident response and vulnerability management processes
 </li>
 
 </ul>
 
 
 
 
 Requirements
 
 <ul>
 
 <li>
 6+ years of experience in security engineering or application security
 </li>
 
 <li>
 3+ years of experience in Application Security (AppSec)
 </li>
 
 <li>
 3+ years of experience conducting threat modelling and risk assessments
 </li>
 
 <li>
 3+ years of experience applying secure coding principles aligned with OWASP standards
 </li>
 
 <li>
 Strong understanding of application security vulnerabilities and mitigation strategies
 </li>
 
 <li>
 Proven experience collaborating with engineering teams to build secure-by-design applications
 </li>
 
 <li>
 2-3 years of experience implementing DevSecOps practices
 </li>
 
 <li>
 2-3 years of experience securing containerised environments such as Docker or Kubernetes
 </li>
 
 <li>
 2+ years of experience applying cryptography and encryption techniques in application security
 </li>
 
 </ul>
 
 
 
 
 Nice to Have
 
 <ul>
 
 <li>
 Experience working within a bank, fintech company, or other regulated environment
 </li>
 
 <li>
 Familiarity with financial services security standards and regulatory frameworks
 </li>
 
 <li>
 Experience securing mobile applications and modern web platforms
 </li>
 
 </ul>
 
 
 
 
 
 
 We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
 
</div>

Senior Security Engineer (Remote, Full-Time) [AS219] PK

Bit Development Pvt Ltd

Job Title: Senior Full Stack Software DeveloperCompany: e-Tools Software Pty Ltd Location: Karachi, Pakistan (On-site) Job Type: Full-TimeRole Overviewe-Tools Software Pty Ltd is seeking an experienced Senior Full Stack Software Developer to join our Karachi team. In this role, you will be responsible for designing, developing, and maintaining high-quality software solutions while contributing to new product development and ensuring timely delivery.Key Responsibilities<ul><li>Design and develop scalable, high-performance applications</li><li>Contribute to system architecture and technical design decisions</li><li>Maintain and enhance existing software products</li><li>Develop and integrate APIs and backend services</li><li>Collaborate with cross-functional teams to deliver business requirements</li><li>Ensure code quality, performance, and best development practices</li><li>Troubleshoot and resolve technical issues</li></ul>Requirements<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field</li><li>8+ years of experience in software development in a commercial environment</li><li>Strong expertise in:</li><li>.NET Framework (3.5+) and .NET Core (5+)</li><li>C#, ASP.NET Core, Web API, Entity Framework</li><li>Frontend experience with React JS, Bootstrap, jQuery, HTML, and CSS</li><li>Experience with AWS Cognito and Azure Active Directory (AD)</li><li>Strong knowledge of SQL Server, database design, and performance optimization</li><li>Solid understanding of SOLID principles and clean coding practices</li><li>Experience with Git/TFS and Agile development methodologies</li><li>Strong problem-solving and analytical skills</li><li>Ability to work independently and meet deadlines</li><li>Good communication and teamwork skills</li></ul>Pay: Up to Rs350,000.00 per monthWork Location: In person

Senior Full Stack Software Developer (DotNet & React)

Datamatics Global Services Ltd

<div><h2 class="jobSectionHeader">Job Title: Senior Data Engineer (AWS)</h2>
Experience: 6&ndash;8 Years 
Location: Remote 
Industry: Retail / Data &amp; Analytics<h3 class="jobSectionHeader"> 
Job Summary</h3>
We are seeking highly skilled and innovative Senior Data Engineers (AWS) to join a dynamic team supporting advanced data initiatives. The ideal candidates will have strong hands-on experience in building scalable data pipelines, working with AWS data services, and delivering high-quality data solutions in fast-paced environments.
This role requires individuals who are problem-solvers, adaptable, and capable of working collaboratively within high-performing teams.<h3 class="jobSectionHeader">
Key Responsibilities</h3><ul><li>
Design, develop, and maintain scalable data pipelines using AWS services.</li><li>
Build and optimize ETL/ELT processes using AWS Glue and DBT (Data Build Tool).</li><li>
Manage and configure data workflows and orchestration within the Orion framework.</li><li>
Develop and maintain configuration files and ensure seamless integration across systems.</li><li>
Collaborate with data architects, analysts, and business stakeholders to deliver data solutions.</li><li>
Optimize data processing performance and ensure data quality and reliability.</li><li>
Work on data modeling, transformation, and warehousing solutions.</li><li>
Implement best practices for data governance, security, and compliance.</li><li>
Troubleshoot and resolve data-related issues across pipelines and infrastructure.</li><li>
Contribute to continuous improvement and innovation in data engineering practices.</li></ul><h3 class="jobSectionHeader">
Required Skills &amp; Expertise</h3><ul><li>
Strong experience with AWS ecosystem, including:<ul><li>
AWS Glue</li><li>
Amazon S3</li><li>
AWS Lambda</li><li>
Amazon Redshift / RDS</li></ul></li><li>
Hands-on expertise in DBT (Data Build Tool) for data transformation.</li><li>
Solid understanding of data pipeline architecture and ETL/ELT processes.</li><li>
Experience working with Orion framework and handling configuration-driven workflows.</li><li>
Good understanding of networking concepts within AWS environments (VPC, subnets, security groups).</li><li>
Proficiency in SQL and Python for data processing.</li><li>
Experience with version control systems (Git).</li><li>
Familiarity with CI/CD pipelines for data workflows.</li></ul><h3 class="jobSectionHeader">
Preferred Qualifications</h3><ul><li>
Experience in retail or supply chain data environments.</li><li>
Exposure to real-time data processing and streaming frameworks.</li><li>
Knowledge of data lake and lakehouse architectures.</li><li>
AWS certifications (e.g., AWS Certified Data Analytics or Solutions Architect).</li></ul><h3 class="jobSectionHeader">
Key Competencies</h3><ul><li>
Strong analytical and problem-solving skills</li><li>
Innovative mindset with a focus on continuous improvement</li><li>
Ability to work in high-performance, collaborative teams</li><li>
Excellent communication and stakeholder management skills</li><li>
Ownership and accountability for deliverables</li></ul>
7A69crohYg</div>

Senior Data Engineer (AWS)

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

Pivotize Consulting

Job Overview We aare in search of an experienced AI Engineer who will work as part of a diverse team of software engineers, data scientists, and machine learning (ML) experts to develop new models and algorithms to apply artificial intelligence to solve real-world problems and change the future.In this role, your curiosity and deep interest in AI, machine learning, and keeping pace with a rapidly evolving field will guide your path. You will delve into extensive data sets, identify patterns, and craft predictive algorithmic models, contributing to innovative projects.Responsibilities: . Design and develop cutting-edge AI solutions and systems that integrate with our products and services. . Implementing AI solutions using programming languages such as Python, R, Java, or C++, along with relevant frameworks and libraries like TensorFlow, PyTorch, or scikit-learn. . Collecting, preprocessing, and analyzing large volumes of data to train AI models. This may involve data cleaning, feature engineering, and exploratory data analysis. . Deploying AI models into production environments and integrating them with existing systems and applications. This may involve containerization, microservices architecture, and cloud computing platforms. . Conduct thorough testing and evaluation of AI systems to ensure they meet performance, reliability, and security standards. . Conduct research and experiments to improve the performance of AI systems. . Monitor the performance of AI systems and make recommendations for improvements. . Stay up-to-date with advancements in AI technologies and make recommendations for future development.Requirements: . Degree in Computer science, Information technology, or a related field. 4+ years of experience with strong programming skills in Python, R, MATLAB, or other relevant programming languages. . Deep understanding of data science, linear algebra, algorithms, and statistics. . Experience working with large data sets and writing efficient code capable of processing large data streams at speed . Familiarity with deep learning and machine learning algorithms and the use of popular AI/ML framework. . Excellent communication skills.Job Type: Full-timePay: From Rs250,000.00 per monthApplication Question(s):<ul><li>What is your current salary?</li><li>What is your expected salary?</li><li>What is your notice period?</li><li>Are you able to commute to Bahria Complex 1, Lalazar, M.T. Khan Road for onsite interview &amp; job? </li></ul>It's mandatory to be available on-site. No Freelance or Remote option / No online interviews &amp; assessment.Work Location: In person

Sr. Artificial Intelligence (AI) Engineer

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