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senior stack engineer

ALBI

<div>We are a fast-growing SaaS company on a mission to propel the restoration industry forward by empowering restoration companies with the technology they need to scale and grow their businesses.
Recently voted a Top 10 Start-up in Chicago by LinkedIn and a Top Start-up by BuiltIn, and backed by Y Combinator, this is an exciting time to join our team as we enter a stage of rapid growth and product expansion.
We&rsquo;re looking for a Senior Full Stack Engineer with deep experience in Flutter and mobile app development, combined with solid backend skills to help us build reliable, scalable, and delightful user experiences across platforms. You&rsquo;ll play a key role in shaping our mobile strategy, owning features end-to-end - from UI to backend services - and mentoring others along the way.<h3 class="jobSectionHeader">
Key Responsibilities</h3><ul>
<li>Lead the development and architecture of Flutter applications for iOS and Android.
</li><li>Work with backend frameworks such as .NET, or similar to build reliable and scalable APIs.
</li><li>Design, implement, and maintain backend services (e.g., RESTful APIs, GraphQL endpoints, database models) that support mobile and web clients.
</li><li>Collaborate closely with product managers and designers to deliver seamless application experiences.
</li><li>Drive performance optimization, responsive UI/UX, and smooth animations.
</li><li>Integrate third-party APIs, cloud services, and native platform features as needed.
</li><li>Establish and maintain CI/CD pipelines for both mobile and backend systems.
</li><li>Mentor junior developers and help define best practices for Flutter, mobile engineering, and API development.
</li><li>Participate in architectural decisions, code reviews, and technical strategy discussions.
</li><li>Contribute to improving app stability, performance, and code quality through automated testing and monitoring.</li>
</ul>
Requirements<ul>
<li>
5+ years of professional mobile development experience, including 3+ years building apps with Flutter/Dart.
</li><li>3+ years of experience in backend development using at least one of following: Java, .NET, Python, Ruby on Rails, including API design and database interaction.
</li><li>Strong understanding of mobile design principles, patterns, and best practices.
</li><li>Experience creating and integrating RESTful APIs, Firebase, GraphQL, or other backend services.
</li><li>Solid understanding of mobile app lifecycle, state management (e.g., Provider, Riverpod, Bloc), and platform-specific challenges.
</li><li>Familiarity with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB, Firestore).
</li><li>Exposure to CI/CD pipelines for mobile and backend (e.g., GitHub Actions, Bitrise, Codemagic).
</li><li>Comfortable working in a cloud environment (Azure, AWS, or GCP).
</li><li>Excellent collaboration skills and a passion for building great end-to-end user experiences.</li>
</ul><ul><li>Bonus: experience with native iOS/Android development, App Store/Play Store deployment, or Flutter web.
</li><li>Preferred: .NET/C# experience</li>
</ul>
Note: The position requires working on-site four days per week. Remote arrangements are not available. This is a direct-hire position (no agencies or contractors). Candidates must be willing to work U.S. business hours.
Benefits
We&rsquo;re driven by purpose, fueled by high energy, and backed by venture funding. We&rsquo;re unapologetically ambitious and make sure that everyone has the support they need to succeed. We value building a strong company culture, being together and collaborating which is why we are an In-Office first organization.
We offer a generous compensation package which includes:<ul>
<li>
Competitive Salary</li>
<li>Generous PTO.</li>
<li>Medical, dental, and vision insurance coverage.</li>
<li>401K Plan + Matching.</li>
</ul><ul><li>Good balance of personal autonomy and team collaboration on projects</li>
<li>Working on a team of smart, kind humans passionate about leveraging technology to solve real-world problems</li>
<li>Environment where your input is highly valued and personal growth is prioritized.</li>
<li>Regular team events and off-sites.</li>
<li>Equipment budget - everything you need to do your best work</li>
<li>Continuing education, mentoring, and career development opportunities</li>
</ul>
Your journey is your own, and we&rsquo;re here to help you thrive, no matter your starting point.</div>

Senior Full Stack Engineer (Flutter & Backend)

Pivotize Consulting

Technology Stack:Angular 12+, .NET Core 8, SQL Server 2019 Enterprise Edition, Redis, SQL Lite, ODataRole Summary:We are seeking a highly experienced Full-Stack Engineer responsible for end-to-end performance, security, and release optimization across frontend, backend, and infrastructure layers. This role will focus on improving system speed, scalability, and resilience while ensuring compliance with modern white-box, grey-box, and black-box testing standards.Key Responsibilities:&middot; Profile and optimize Angular 12+ components, applying lazy loading, OnPush strategy, and efficient data handling.&middot; Analyze and refactor .NET Core 8 APIs for performance, scalability, and security.&middot; Optimize SQL Server queries, stored procedures, indexes, and implement advanced features like partitioning, materialized views, columnstore Indexes, In-Memory OLTP, Query Store, controls (CPU, memory, and I/O resource allocation), Scale-Out with Sharding.&middot; Conduct release management optimization: IIS tuning, caching strategies, connection pooling, and CI/CD performance improvements.&middot; Collaborate with product leadership to define and achieve measurable performance goals.&middot; Conduct and close pen testing issues ensuring adherence to OWASP standards.&middot; Design scalable microservices-ready architecture for long-term growth.Required Skills&middot; 8+ years of full-stack development experience in Angular, .NET Core, and SQL Server.&middot; Expert in SQL Server performance tuning, query optimization, indexing, and partitioning.&middot; Strong understanding of IIS performance configuration and Redis caching.&middot; Hands-on with performance profiling tools (.NET Profiler, SQL Profiler, Chrome DevTools, Lighthouse).&middot; Experience in microservices design, Docker, Kubernetes, and cloud deployment pipelines.&middot; Knowledge of OWASP and security testing tools (Burp Suite, OWASP ZAP).Preferred Skills / Experience&middot; Experience optimizing enterprise-grade web platforms handling large data sets.&middot; Background in DevOps and CI/CD pipeline performance tuning.Key Performance Indicators (KPIs)&middot; Reduce page load time to under 2 seconds for major modules.&middot; Achieve 60% reduction in average API response time.&middot; Resolve 100% of identified pen testing issues within SLA.&middot; Implement database improvements reducing query execution time below 2 secondJob 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>Since it's an on-site role, would you be able to commute to Bahria Complex 1, Lalazar, M.T.Khan Road for interview &amp; job?</li></ul>Work Location: In person

Senior Full-Stack Engineer (Angular & .Net Only)

MarketCube.io

Job SummaryThis is a full-time, on-site role focused on backend-heavy development with the flexibility to contribute to frontend features when required. You will build scalable APIs, work on marketplace workflows, and develop dashboards used by sellers, admins, and enterprise clients.Key Responsibilities<ul><li>Develop and maintain backend services using Node.js and MongoDB</li><li>Build and optimize REST APIs and marketplace logic</li><li>Design and manage MongoDB data models, queries, and indexes</li><li>Develop UI components and dashboards in React.js</li><li>Integrate third-party APIs (payments, logistics, identity, messaging)</li><li>Debug and resolve full-stack issues</li><li>Work closely with Product, QA, UI/UX, and Support teams</li><li>Participate in architecture, sprint planning, and code reviews</li><li>Follow Git/GitHub workflows and engineering best practices</li></ul>Required Qualifications<ul><li>Minimum 4 years of full-stack development experience</li><li>Strong hands-on skills in Node.js, MongoDB, and React.js</li><li>Proficiency in JavaScript (ES6+)</li><li>Experience building and consuming RESTful APIs</li><li>Strong debugging and problem-solving skills</li><li>Experience using Git/GitHub</li><li>Ability to work on-site in Karachi</li></ul>Preferred Skills<ul><li>Experience with SaaS, marketplaces, or e-commerce systems</li><li>Experience with Typescript</li><li>Understanding of queues, microservices, or asynchronous patterns</li><li>Exposure to GCP, Docker, or CI/CD</li><li>Experience with Stripe, logistics, or workflow integrations</li></ul>What We Offer<ul><li>Flexible working hours</li><li>Work on a global SaaS platform used across multiple countries</li><li>Career growth opportunities (Full Stack Lead / Engineering Manager)</li><li>A collaborative and modern engineering environment</li><li>High ownership and autonomy</li></ul>How to ApplySend your CV to: Ali.haider@marketcube.io Subject: Senior Full Stack Engineer &ndash; KarachiJob Type: Full-timeExperience:<ul><li>React, Node Js, Full Stack Development: 4 years (Required)</li></ul>Work Location: In person

Senior Full Stack Engineer (React.js / Node.js / MongoDB)

CinqTech

CinqTech is a Dubai-based software house, urgently hiring for our Karachi office!Our fast-paced working environment has attracted some of the best talents in the industry. To work on our next-gen tech projects, we invite passionate youngsters to deliver key milestones. Ideal if you are an analytical thinker, and are excited by new challenges!We are looking to hire 2 x full Stack Engineers - 1x Mid level Full Stack Engineer and 1 x Senior Full Stack EngineerJob Description:<ul><li>Design, develop, and enhance web applications, both front-end and back-end components, to meet business requirements and technical specifications</li><li>Work on both client-side and server-side development, including user interface (UI) design, front-end coding and back-end programming</li><li>Build and integrate RESTful APIs and web services to connect front-end and back-end systems</li><li>Design and maintain databases, write queries using SQL and ORM, and optimize database performance</li><li>Writing clean, well-designed code and maintain coding standards</li><li>Write and execute unit tests, perform code reviews, and troubleshoot and debug software issues</li><li>Collaborate with cross-functional teams to assist them in developing software solutions</li><li>Work collaboratively in an Agile + Scrum development environment</li><li>Stay up-to-date with emerging trends, technologies, frameworks and best practices in software development</li></ul>Requirements:<ul><li>Strong skills in object-oriented design, database, data structure and algorithms.</li><li>Minimum 3 years of experience in server-side technologies, frontend development, web services and REST APIs</li><li>Hands on experience with any of the following: Python, Php, JavaScript, TypeScript, NodeJS, Django, Angular or React</li><li>Understanding of databases like Postgresql, MS SQL Server etc</li><li>BS/MS in Computer Science, Software Engineering or any other related discipline</li><li>Excellent analytical and problem solving skills</li><li>Good leadership and organizational skills</li></ul>We offer market-competitive salaries and a range of benefits including:<ul><li>Family Health Insurance (Parents, Children, Spouse &amp; Self)</li><li>Leave Encashment</li><li>Quarterly Reviews</li><li>Masters Degree Sponsorship</li><li>Interest-Free Vehicle Loan</li><li>Provident Fund</li></ul>Closing Date: Monday 29th December 2025 at 12pmJob Type: Full-time

Full Stack Engineer (Mid/Senior)

Outsource Origin Limited

Job Title: Full-Stack DeveloperCompany: Outsource Origin Location: Karachi (On-site) Employment Type: Full-TimeAbout the RoleOutsource Origin is looking for a talented Full-Stack Developer with strong experience in building both mobile and web applications. The ideal candidate must be proficient in React Native, Next.js, Node.js, and React, with a proven track record of delivering high-quality applications, managing deployments, and publishing apps on both the Apple App Store and Google Play Store.Key Responsibilities<ul><li>Develop high-performing mobile applications using React Native.</li><li>Build fast, scalable, and modern web applications using Next.js and React.</li><li>Develop backend services, APIs, and server-side logic using Node.js.</li><li>Integrate REST APIs, external services, and databases.</li><li>Handle deployments, version control, and manage app publishing on both app stores.</li><li>Identify and fix bugs, optimize performance, and write clean, maintainable code.</li><li>Collaborate with designers, project managers, and QA teams for smooth project delivery.</li></ul>Required Skills &amp; Experience<ul><li>Strong command over:</li><li>React Native</li><li>Next.js</li><li>Node.js</li><li>React (Frontend)</li><li>Must have at least 3 published mobile apps on both the App Store and Play Store (company or personal projects).</li><li>Minimum 3+ years of full-stack development experience.</li><li>Hands-on experience with deployments, app publishing, and API integrations.</li><li>Proficiency with version control tools like Git/GitHub.</li><li>Ability to work independently, take ownership, and meet deadlines.</li></ul>How to Apply Email your CV: Muazzamoutsourceorigin@gmail.com WhatsApp: +92 334 3741307 Subject: Application &ndash; Full Stack Developer | Outsource OriginJob Type: Full-timePay: Rs100,000.00 - Rs150,000.00 per monthWork Location: In person

Senior Full Stack Developer

Qualix Solutions

Karachi (PECHS) | Daytime Shift | 2+ Years ExperienceAbout the RoleWe're looking for a Full Stack Software Engineer with strong backend skills to join our team. You'll build and maintain full-stack applications, work closely with designers and engineers, and grow under the guidance of senior technical leadership.What You'll Do<ul><li>Build and maintain backend APIs using Node.js and NestJS</li><li>Implement authentication and authorization using JWT / OAuth</li><li>Develop full-stack features using Next.js (SSR, SSG, API routes)</li><li>Design MongoDB schemas and write efficient queries and basic aggregation pipelines</li><li>Optimize database performance using indexing and query analysis</li><li>Build reusable React functional components and integrate with APIs</li><li>Debug and resolve issues across the stack (React, Next.js, NestJS, MongoDB)</li><li>Participate in code reviews and follow team coding standards</li><li>Collaborate with designers, frontend, and backend team members</li><li>Work under guidance of senior engineers for architectural decisions</li></ul>What We're Looking ForBackend (Strong):<ul><li>TypeScript: Interfaces, types, generics</li><li>Node.js &amp; NestJS: REST APIs, modules, services, guards, authentication (JWT), validation &amp; error handling</li><li>Next.js: API routes, server-side rendering (SSR), static generation (SSG)</li><li>MongoDB: Schema design, indexing, aggregations (lookup, group, match)</li><li>SQL: Basic to intermediate MySQL or PostgreSQL</li><li>API Security: Input validation, basic XSS / CSRF awareness</li></ul>Frontend (Working Knowledge):<ul><li>React: Hooks, functional components, Redux or Zustand</li><li>Tailwind CSS: Responsive layouts, utility-first styling</li><li>Responsive Design: Flexbox, CSS Grid</li></ul>Nice to Have<ul><li>Docker basics</li><li>Cloud exposure (AWS / Azure)</li><li>CI/CD awareness</li><li>Experience integrating AI APIs (OpenAI, Claude, etc.)</li></ul>Other Requirements<ul><li>Good verbal and written English communication</li><li>Problem-solving mindset and attention to detail</li><li>Bachelor's degree in Computer Science or related field (preferred)</li></ul>Job Type: Full-timeApplication Question(s):<ul><li>Please share your Portfolio? (vercel , netlify, Github or other)</li><li>Why do you want to switch?</li><li>What is your current salary?</li><li>What is your expected salary?</li><li>Is your expected salary negotiable?</li><li>What is your notice period?</li><li>Rate your English speaking skills from 1 (Novice) to 10 (Expert)?</li></ul>Experience:<ul><li>Mernstack Development: 2 years (Preferred)</li></ul>Work Location: In person

Full Stack Software Engineer (MERN)

SOC Solutions LLC

Location: Karachi, Pakistan (On-site) Timing: 11 AM &ndash; 8 PM (Mon&ndash;Fri) Company: Botmer InternationalWe&rsquo;re looking for an experienced Principal Software Engineer (Clouds) to lead cloud architecture, infrastructure automation, and large-scale deployment systems across our AI-driven software products.Responsibilities<ul><li>Architect and maintain scalable cloud infrastructure (AWS, GCP, or Azure)</li><li>Lead and mentor a team of senior engineers</li><li>Design CI/CD pipelines, monitoring, and disaster recovery solutions</li><li>Ensure cloud cost optimization and performance efficiency</li><li>Collaborate closely with AI and full-stack teams on system integration</li></ul>Requirements<ul><li>8+ years of software engineering experience, with at least 3+ years in cloud-focused roles</li><li>Strong command of AWS, Docker, Kubernetes, Terraform, and CI/CD tools</li><li>Proficient in backend programming (Python, Node.js, or Go)</li><li>Experience with microservices, APIs, and security best practices</li><li>Leadership experience managing or mentoring technical teams</li></ul>Perks<ul><li>Competitive market salary</li><li>Collaborative and fast-paced startup culture</li><li>Opportunity to work on cutting-edge AI and automation projects</li></ul>Job Type: Full-timePay: Rs350,000.00 - Rs500,000.00 per monthApplication Question(s):<ul><li>What is your expected Salary for this Role?</li></ul>Experience:<ul><li>Software Development: 5 years (Required)</li><li>DevOps: 5 years (Required)</li></ul>Work Location: In person

Principal Software Engineer

Explore 551+ Senior stack engineer in Karachi this December. Find roles across top companies and apply now to boost your career.