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lead software quality assurance engineer

lead software engineer

Cloudpacer

Principal Software EngineerHighly skilled software engineer with 4+ years of hands-on experience in designing, developing, and scaling web applications and backend systems. Specialized in Python, Django, and FastAPI, with proven ability to lead engineering teams, architect large-scale systems, and deliver high-quality software in agile environments. Adept at problem-solving, mentoring junior developers, and driving product success from concept to deployment.&#11835;Core Competencies<ul><li>Programming &amp; Frameworks: Python, Django, FastAPI, Flask</li></ul><ul><li>Databases: PostgreSQL, MySQL, MongoDB, Redis</li></ul><ul><li>Cloud &amp; DevOps: AWS, Docker, Kubernetes, CI/CD (GitHub Actions, Jenkins)</li></ul><ul><li>Architecture &amp; Design: Microservices, RESTful APIs, Event-Driven Systems, Scalable SaaS platforms</li></ul><ul><li>Other Skills: Agile/Scrum, TDD, System Design, Team Leadership, Performance Optimization</li></ul>Job Type: Full-timeWork Location: In person

Principal Software Engineer (Python)

UnitFactor

Job Title: Technical Lead &ndash; MERN Stack Engineer Company: Unitfactor Location: Lahore, Pakistan (On-site) Job Type: Full-timeAbout Unitfactor: Unitfactor is a purpose-driven digital solutions company specializing in website development, UI/UX design, branding, and scalable software products. We deliver meaningful digital experiences through strategy, research, and structured development processes.We are looking for a Technical Lead &ndash; MERN Stack Engineer to guide our technical team, build high-quality digital products, and help us achieve our vision of impact-driven solutions.Responsibilities:<ul><li>Lead, mentor, and coordinate the development team.</li><li>Oversee project planning, architecture, and execution for MERN stack projects.</li><li>Ensure high-quality, secure, and efficient code.</li><li>Collaborate with UI/UX designers, product managers, and stakeholders.</li><li>Review and optimize existing codebases.</li><li>Manage deployments, version control, and continuous integration.</li><li>Troubleshoot technical issues and provide guidance.</li><li>Ensure timely project delivery following Unitfactor&rsquo;s workflow.</li><li>Stay updated with emerging MERN stack technologies and best practices.</li></ul>Required Skills &amp; Experience:<ul><li>5+ years of experience in web or software development.</li><li>Strong knowledge of MongoDB, Express.js, React.js, Node.js (MERN stack).</li><li>Experience with HTML, CSS, JavaScript, TypeScript.</li><li>Proficiency in Git/GitHub and code review processes.</li><li>Understanding of UI/UX and responsive design.</li><li>Experience with APIs, integrations, and cloud services.</li><li>Strong problem-solving and leadership abilities.</li><li>Ability to manage multiple projects simultaneously.</li></ul>Preferred Qualifications:<ul><li>Experience leading a team or managing developers.</li><li>Knowledge of DevOps practices (CI/CD, Docker, AWS, etc.).</li><li>Experience with Agile methodologies.</li><li>Strong analytical and communication skills.</li></ul>How to Apply: Send your CV/Portfolio to hr@unitfactor.org with the subject line: &ldquo;Technical Lead &ndash; MERN Stack Engineer &ndash; Unitfactor.&rdquo;Job Type: Full-timePay: Rs250,000.00 - Rs400,000.00 per monthWork Location: In person

Technical Lead - MERN Stack Engineer

People Junction

Job Summary:We are seeking a highly skilled and experienced Principal Software Engineer to lead the design, development, and implementation of scalable and high-performance software solutions. This role requires a strong technical background, leadership capabilities, and the ability to drive engineering excellence across teams.Key Responsibilities:<ul><li>Lead the end-to-end software development lifecycle, from requirements gathering to deployment</li><li>Architect, design, and develop scalable, reliable, and secure software solutions.</li><li>Collaborate with cross-functional teams, including product managers, designers, and other engineers.</li><li>Mentor and guide junior and mid-level engineers, promoting best coding practices and technical excellence.</li><li>Conduct code reviews, identify areas for improvement, and ensure adherence to coding standards.</li><li>Optimize system performance, troubleshoot technical issues, and implement innovative solutions.</li><li>Drive technical discussions and contribute to strategic decision-making for technology adoption.</li><li>Stay updated with industry trends, emerging technologies, and best practices in software development.</li><li>Ensure high-quality software delivery by implementing robust testing and CI/CD pipelines.</li></ul>Requirements:<ul><li>Bachelor&rsquo;s or Master&rsquo;s degree in Computer Science, Software Engineering, or a related field.</li><li>8+ years of experience in software development, with expertise in designing and building complex applications.</li><li>Proficiency in MERN Stack (MongoDB, Express.js, React.js, Node.js) or other relevant frameworks.</li><li>Strong experience in cloud platforms such as AWS, Azure, or GCP.</li><li>Solid understanding of microservices architecture, APIs, and distributed systems.</li><li>Hands-on experience with DevOps tools, CI/CD pipelines, Docker, and Kubernetes.</li><li>Strong problem-solving skills, analytical thinking, and the ability to work in a fast-paced environment.</li><li>Excellent communication skills and the ability to collaborate effectively across teams.</li></ul>Preferred Skills:<ul><li>Experience with AI/ML integration in software applications.</li><li>Knowledge of blockchain, cybersecurity, or IoT technologies.</li><li>Contribution to open-source projects or active participation in developer communities.</li></ul>Job Type: Full-timePay: Up to Rs800,000.00 per monthApplication Question(s):<ul><li>Which cloud platforms you have experience in?</li><li>Please share your resume at: https://tinyurl.com/PSEWalee</li><li>The company is located in DHA Phase 8, Lahore. Would you be willing to work on Onsite ?</li><li>How many years of experience you have in MERN Stack?</li><li>Do you have an experience in DevOps tools?</li></ul>Experience:<ul><li>Software Development: 8 years (Required)</li></ul>Location:<ul><li>Lahore (Required)</li></ul>Work Location: In person

Principal Sofware Engineer

10xengineers

Level: Senior (5-7 years) Location: Lahore, Pakistan Job Type: Full-timeAbout the RoleWe are seeking a senior engineer to join our high-performance team, which partners with leading AI chip companies to deliver cutting-edge software that enables end-users to run Vision and Generative AI inference workloads efficiently on custom accelerators.As a Senior Machine Learning Engineer, you will be a key technical member of the team, working in a hands-on role to contribute to the design and development of frameworks, APIs, and runtime integrations that enable AI models to run seamlessly on next-generation hardware. You will also help shape technical direction, mentor junior engineers, and collaborate closely with the client&rsquo;s compiler/runtime and hardware architecture teams.This is not a traditional applied ML role. Instead, it requires deep software engineering expertise with strong exposure to AI/ML systems, ideal for someone who thrives in systems programming and performance optimization, and wants to pivot into the AI/ML domain while continuing to build on their proven experience in delivering robust, high-quality software. In this role, you will directly contribute to enabling large-scale AI workloads on custom hardware.What you'll do&#9679; Define and implement software architecture and design patterns to ensure frameworks and applications are scalable, maintainable, and reusable.&#9679; Architect and develop Python/C++ frameworks for integrating ML models with custom runtimes.&#9679; Design and implement high-performance APIs, bindings, and libraries to support inference of Vision and Generative AI models.&#9679; Build and maintain Model Zoo, loaders, and optimization workflows to simplify model deployment.&#9679; Profile, debug, and optimize performance-critical paths in runtime and framework layers.&#9679; Develop real-time pipelines and applications using GStreamer, OpenCV, and other multimedia/ML frameworks.&#9679; Collaborate with compiler/runtime teams to ensure smooth integration of graph-level and operator optimizations.&#9679; Mentor and guide junior engineers; enforce software engineering best practices across design, testing, CI/CD, and code reviews.&#9679; Own end-to-end delivery of software components: define scope, set timelines, and drive execution.What we're looking for &#9679; 5&ndash;7+ years of professional experience in software engineering, ideally in systems programming or performance-critical applications.&#9679; Strong programming expertise in C++ (C++11/14/17) and Python.&#9679; Experience with C++/Python bindings (e.g., pybind11, SWIG).&#9679; Strong fundamentals in:&#9675; Data structures and algorithms&#9675; Concurrency, threading, and synchronization&#9675; Memory management, caching, and performance profiling&#9675; Networking and streaming systems&#9679; Exposure to ML frameworks (PyTorch, TensorFlow, ONNX Runtime) and how they interface with hardware runtimes.&#9679; Experience building frameworks, SDKs, or toolchains used by other developers or customers.Bonus Points&#9679; Hands-on experience deploying vision or Generative AI models (transformers, diffusion models, LLM inference).&#9679; Experience with multimedia/vision pipelines (e.g., GStreamer plugin development).&#9679; Contributions to open-source ML systems projects (e.g., Hugging Face, ONNX Runtime, TensorRT).&#9679; Prior experience in a technical lead or client-facing role.What join 10xEngineers?&#9679; Opportunity to work on state-of-the-art AI systems with a world-class chip company.&#9679; A chance to be the anchor of a team, shaping its technical culture and delivery standards.&#9679; Continuous exposure to Vision and Generative AI workloads without being tied to repetitive applied ML tasks.&#9679; Growth path into architectural leadership across multiple projects.Job Type: Full-timeWork Location: In person

Senior Machine Learning Engineer - AI Systems & Frameworks

Scroll Tab

<div>/&quot;Our U.S based Client required Remote Services for this Position/&quot; 
Summary 
 
We are looking for a highly skilled Senior Databricks Engineer with a strong background in Azure data services to lead the design, development, and optimization of scalable data pipelines and analytics solutions. The ideal candidate will have at least 4 years of hands-on experience in Databricks, with deep expertise in Azure Data Factory (ADF), Delta Lake, and big data processing. 
Key Responsibilities: 
<ul><li>Design and implement robust, scalable, and efficient data pipelines using Azure Databricks and ADF.</li>
<li>Develop and manage ETL/ELT processes, data lakes, and Delta Lake architecture.</li>
<li>Collaborate with data scientists, analysts, and business stakeholders to deliver high-impact AI/ML-driven data products.</li>
<li>Optimize Spark jobs and ensure performance tuning of large-scale data transformations.</li>
<li>Drive best practices in data quality, governance, and security across Azure cloud-based solutions.</li>
<li>Participate in code reviews, solution architecture design, and technical mentoring of junior engineers.</li>
<li>Monitor and manage job performance and orchestration using ADF, Databricks Workflows, or other schedulers.</li>
<li>Ensure adherence to compliance, privacy, and security policies within data solutions</li> 
</ul>Qualification:
Bachelors Degree in Computer Sciences or Software Engineering
Sound Knowledge of Database Management ,SQL and Azure</div>

Senior Databricks Engineer

Code District

<div>Role Overview:
Code District is looking for a Lead Software Engineer to own the architecture and delivery of modern, AI-enabled, cloud-native applications. This is a hands-on technical leadership role: you will design systems, guide implementation, enforce standards, mentor developers, and still write high-quality production code.
Our core stack is JavaScript/TypeScript (React/Next.js on the frontend, Node.js/NestJS on the backend) with SQL/NoSQL databases and AWS. At this level, we expect you to be technology-agnostic and capable of leading teams working in other ecosystems (e.g., .NET, PHP) when the project demands it.
Key Responsibilities:
Architecture &amp; design: Own end-to-end architecture for one or more products, apply suitable patterns (modular, microservices, event-driven, etc.), and document/communicate key technical decisions and trade-offs.
Hands-on engineering: Lead development using React/Next.js and Node.js/NestJS/Express; design and implement RESTful (and optionally GraphQL) APIs; work with SQL (PostgreSQL/MySQL) and NoSQL (MongoDB) while enforcing clean code, testing, and observability practices.
Cloud &amp; DevOps: Design and guide deployments on AWS using core services (VPC, IAM, EC2, ECS/Fargate, Lambda, API Gateway, S3, RDS, CloudFront, CloudWatch, SQS/SNS), collaborate with DevOps on CI/CD and IaC, and ensure security, resilience, and cost-efficiency.
Team leadership &amp; standards: Lead multiple squads, set and enforce engineering standards (code quality, branching, reviews, documentation), perform regular code reviews, and mentor mid/junior engineers on both technical depth and professionalism.
AI &amp; modern practices: Drive adoption of AI-assisted development tools (Copilot, Cursor, ChatGPT, etc.), help design and deliver AI-enabled product features (LLM integrations, intelligent workflows), and champion modern engineering practices (Agile, API-first, TDD where appropriate).
Stakeholder &amp; client engagement: Work closely with Product, Design, QA, and PMO for scoping and planning; join discovery and solution workshops with international clients; translate business goals into clear technical roadmaps and communicate risks and options clearly.
Technology-agnostic leadership: When required, lead or support projects in other stacks (e.g., .NET, PHP) by focusing on architecture, patterns, and standards, and guide teams through refactors, migrations, and legacy modernization.
Requirements:<ul><li>
5+ years of professional experience in full-stack web development.</li><li>
Deep proficiency in JavaScript (ES6+) and preferably TypeScript, with strong hands-on experience in React (Next.js preferred) and Node.js (NestJS and/or Express).</li><li>
Strong understanding of software engineering fundamentals, architecture styles, and design patterns (layered, modular, microservices, event-driven; DI, repository, adapter, strategy, etc.) applied in real projects.</li><li>
Solid experience with SQL databases (PostgreSQL/MySQL) and working knowledge of NoSQL (MongoDB), including sound data modeling and performance considerations.</li><li>
Strong experience in REST API design and integration (GraphQL is a plus), plus good grasp of Git-based workflows and CI/CD concepts.</li><li>
Advanced, practical experience with AWS core services for compute, storage, data, networking, and messaging (e.g., VPC, IAM, EC2, ECS/Fargate, Lambda, API Gateway, S3, RDS, CloudFront, CloudWatch, SQS/SNS).</li><li>
Proven track record of leading engineering teams: mentoring, code reviews, setting standards, and managing delivery across multiple streams/squads.</li><li>
Technology-agnostic mindset and ability to understand and lead work in other ecosystems (e.g., .NET, PHP) when required.</li><li>
Experience with or strong interest in AI/LLM integration and AI-assisted development tools (Copilot, Cursor, ChatGPT, etc.).</li><li>
Excellent communication skills, comfort working with international clients and cross-functional teams, and a high level of ownership, discipline, and commitment to engineering excellence</li></ul>
Why Code District:<ul><li>
Lead impactful AI-driven, cloud-powered MERN projects</li><li>
Shape architecture, mentor talent, and influence product strategy</li><li>
Collaborative, innovative, and learning-oriented environment</li></ul></div>

Principal Software Engineer

vFairs

<div>
 
 
 About Us
 
 
 
 
 
 
 
 vFairs is an all-in-one event management platform and Gartner Magic Quadrant Leader, helping event planners power conferences, trade shows, and corporate events with in-person, hybrid, and virtual solutions. Our platform includes event registration, on-site badge printing, mobile apps, and more, managing the entire event lifecycle from planning through analytics. Rated 4.9/5 for customer support and recognised as a top platform on G2, we're known for robust technology and customer service that goes the extra mile. vFairs has a transparent, fast-paced, and collaborative culture, with geographically distributed teams united by strong processes and the autonomy to drive solutions forward.
 
 
 
 
 
 
 vFairs is seeking a Senior Software Engineer with deep expertise in web technologies to lead technical initiatives, mentor development teams, and architect scalable solutions. You will drive innovation, establish best practices, and ensure the delivery of high-quality, performant web applications.
 
 
 
 
 
 
 Responsibilities
 
 
 
 Development &amp; Engineering
 
 <ul>
 <li>
 Develop and maintain high-performance web applications using modern JavaScript frameworks (Vue.js, React, Angular)
 </li>
 <li>
 Design and implement robust backend APIs using Laravel/PHP and other relevant technologies
 </li>
 <li>
 Write and optimise complex MySQL queries and database schemas
 </li>
 <li>
 Build responsive, accessible front-end components using HTML5, CSS3, and modern CSS frameworks
 </li>
 <li>
 Implement comprehensive testing strategies (unit, integration, e2e)
 </li>
 </ul>
 
 Process &amp; Quality Assurance
 
 <ul>
 <li>
 Conduct thorough code reviews and provide constructive feedback
 </li>
 <li>
 Implement version control best practices and branching strategies
 </li>
 <li>
 Define and monitor key performance indicators for web applications
 </li>
 <li>
 Troubleshoot complex issues and provide technical support
 </li>
 <li>
 Adapt AI tools to increase productivity
 </li>
 </ul>
 
 Collaboration &amp; Communication
 
 <ul>
 <li>
 Collaborate with product managers, designers, and stakeholders to define technical requirements
 </li>
 <li>
 Communicate technical concepts to non-technical stakeholders
 </li>
 <li>
 Participate in agile ceremonies and contribute to sprint planning
 </li>
 <li>
 Document technical decisions, architecture, and implementation details
 </li>
 </ul>
 <li>
 </li>
 
 
 Requirements
 
 
 
 Education &amp; Experience
 
 <ul>
 <li>
 BS/MS in Computer Science, Software Engineering, or related field
 </li>
 <li>
 4-8 years of progressive experience in full-stack web development
 </li>
 <li>
 Proven track record of delivering complex web applications at scale
 </li>
 </ul>
 
 Technical Expertise
 
 <ul>
 <li>
 Expert-level proficiency in modern JavaScript (ES6+) and TypeScript
 </li>
 <li>
 Deep experience with Vue.js, React, or Angular (preferably multiple frameworks)
 </li>
 <li>
 Strong backend development skills with Laravel/PHP and RESTful API design
 </li>
 <li>
 Advanced database skills, including MySQL optimisation, complex queries, and schema design
 </li>
 <li>
 Experience with modern build tools (Webpack, Vite, etc.) and package managers
 </li>
 </ul>
 
 Architecture &amp; Design
 
 <ul>
 <li>
 Experience designing and implementing microservices and distributed systems
 </li>
 <li>
 Knowledge of web performance optimisation techniques and tools
 </li>
 <li>
 Understanding of security best practices (OWASP, authentication, authorisation)
 </li>
 <li>
 Experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes)
 </li>
 </ul>
 
 Development Practices
 
 <ul>
 <li>
 Expertise in Git workflows, branching strategies, and version control best practices
 </li>
 <li>
 Experience with CI/CD pipelines and automated testing frameworks
 </li>
 <li>
 Knowledge of agile methodologies and the software development lifecycle
 </li>
 <li>
 Experience with monitoring, logging, and observability tools
 </li>
 </ul>
 
 Soft Skills
 
 <ul>
 <li>
 Strong leadership and mentoring abilities
 </li>
 <li>
 Excellent communication skills (technical and non-technical)
 </li>
 <li>
 Problem-solving mindset with analytical thinking
 </li>
 <li>
 Ability to work independently and lead cross-functional teams
 </li>
 <li>
 Continuous learning attitude and passion for technology
 </li>
 </ul>
 
 
 
 
 
 Preferred Qualifications
 
 
 <ul>
 <li>
 Experience with event-driven architectures and real-time web applications
 </li>
 <li>
 Knowledge of WebRTC, WebSockets, and real-time communication protocols
 </li>
 <li>
 Experience with performance monitoring tools (New Relic, DataDog, etc.)
 </li>
 <li>
 Contributions to open-source projects or technical communities
 </li>
 <li>
 Experience with accessibility standards (WCAG) and internationalisation
 </li>
 <li>
 Knowledge of SEO best practices and web analytics
 </li>
 <li>
 Experience with progressive web apps (PWA) and mobile web development
 </li>
 </ul>
</div>

Senior Software Engineer

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