backend developer

10Pearls

<div>Company Overview 
 
10Pearls is an award-winning end-to-end digital innovation company that helps businesses imagine and build the future. We are proud to announce that 10Pearls was named as winner of the Best Tech Work Culture Timmy Award in Washington DC by Tech in Motion, recognized on the Inc. 5000 Fastest-Growing Companies List, and was ranked the #1 Most Diverse Midsize Company in Greater Washington. We partner with businesses to help them transform, scale, and accelerate by adopting digital and exponential technologies. Our work has ranged from creating highly usable, secure digital experiences, mobile and software products, to helping businesses modernize through cloud adoption and development and the digitalization of their business processes. Our clientele is highly diverse, including Global 1000 enterprises, mid-market businesses, and high-growth start-ups. But those are just the facts. What makes us unique is that we have true heart and soul. We have a strong focus on a double bottom line and actively support and engage with the communities where we live and work to make the world a better place. In a nutshell, we believe in doing well, while doing good, and know how to balance the two.
Role
10Pearls is seeking a Senior Elixir Developer to design, build, and scale highly available distributed systems powering mission-critical applications. You will play a key role in architecting backend services, optimizing system performance, and driving technical excellence across the engineering organization. This position requires deep expertise in Elixir, the BEAM ecosystem, distributed systems, and cloud-native architectures.
Responsibilities<ul><li>
Design, develop, and maintain scalable backend services using Elixir and Phoenix</li><li>
Build fault-tolerant, highly concurrent distributed systems leveraging OTP principles and BEAM capabilities</li><li>
Architect APIs, event-driven services, and real-time applications with a focus on reliability and performance</li><li>
Collaborate with product managers, designers, and engineers to deliver high-quality software solutions</li><li>
Design and implement messaging, streaming, and asynchronous processing workflows</li><li>
Optimize application performance, scalability, and resource utilization across production environments</li><li>
Develop and maintain integrations with third-party platforms, internal services, and data systems</li><li>
Implement observability, monitoring, logging, and alerting strategies for production services</li><li>
Contribute to infrastructure automation, CI/CD pipelines, and cloud-native deployment processes</li><li>
Establish coding standards, best practices, and architectural guidelines across teams</li><li>
Participate in system design reviews, technical planning, and architecture discussions</li><li>
Troubleshoot complex production issues and drive root-cause analysis initiatives</li><li>
Mentor engineers through code reviews, pair programming, and technical leadership</li><li>
Contribute to continuous improvement initiatives focused on quality, reliability, and developer productivity</li></ul>
Requirements<ul><li>
5+ years of professional software engineering experience</li><li>
3+ years of hands-on experience building production systems with Elixir</li><li>
Strong expertise in Elixir, Erlang/OTP, GenServer, Supervisors, and BEAM internals</li><li>
Experience building applications with Phoenix Framework and Phoenix LiveView</li><li>
Solid understanding of distributed systems, concurrency, fault tolerance, and message-driven architectures</li><li>
Experience designing and consuming RESTful APIs, GraphQL APIs, and microservices</li><li>
Proficiency with relational databases such as PostgreSQL and ORM tools like Ecto</li><li>
Experience with event-driven systems, message queues, and streaming platforms</li><li>
Strong understanding of software architecture patterns and system design principles</li><li>
Experience deploying and operating applications in cloud environments (AWS, Azure, or GCP)</li><li>
Familiarity with containerization technologies such as Docker and Kubernetes</li><li>
Strong knowledge of testing methodologies, CI/CD pipelines, and DevOps practices</li><li>
Proficiency with Git and modern software development workflows</li><li>
Excellent problem-solving, communication, and collaboration skills</li></ul>
Nice to Have<ul><li>
Experience with Phoenix LiveView for building real-time user experiences</li><li>
Experience with distributed Elixir clusters and global process coordination</li><li>
Familiarity with Kafka, RabbitMQ, NATS, or similar messaging technologies</li><li>
Experience with infrastructure-as-code tools such as Terraform</li><li>
Knowledge of observability platforms including Prometheus, Grafana, OpenTelemetry, and ELK stack</li><li>
Experience with high-throughput systems, fintech, healthcare, logistics, or SaaS platforms</li><li>
Exposure to functional programming languages beyond Elixir (Erlang, Haskell, F#, Clojure, etc.)</li><li>
Experience contributing to open-source projects or technical communities</li><li>
Familiarity with security best practices, authentication protocols, and compliance requirements</li><li>
Experience working in agile, distributed, and cross-functional engineering teams</li></ul>
5HoyMvsu35</div>

Staff/Senior Software Consultant - Elixir

Tech4life Enterprises

GENERAL PURPOSE:The &ldquo;Software Developer&rdquo; is responsible for overall software and web development, testing, supporting and stabilization of core technologies under a defined plan. He provides leadership roles on the agenda of software maintenance and supports the software support team with backend technologies to run the regular affairs and commercialization activities of Tech4Life Enterprises.JOB RESPONSIBILITIES &amp; AUTHORITIES:<ul><li>Develop features across multiple subsystems within our applications, including collaboration in requirements definition, prototyping, design, coding, testing and deployment.</li><li>Consulting with the software development team, internal users, outsourced developers and clients to improve application performance.</li><li>Experience in planning and delivering software platforms used across multiple products and organizational units.</li><li>Support and facilitate software development, support, and outsource team for the maintenance and development of products.</li><li>Determines operational feasibility by evaluating analysis, problem definition, requirements, solution development, and proposed solutions.</li><li>Documents and demonstrates solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments and clear code.</li><li>Establishing the root causes of application errors and escalating serious concerns to the concerned Engineer.</li><li>Keeping a record of configuration changes and scheduling application updates.</li><li>Advanced proficiency in determining the causes of application errors and repairing them.</li><li>Performing routine maintenance and monitoring performance metrics.</li><li>Identifying problems uncovered by customer feedback and testing and correcting or referring problems to appropriate personnel for correction.</li></ul>Full-Lifecycle Development: Lead feature development across multiple subsystems, ensuring active collaboration from initial requirements definition and prototyping to final deployment.Analytical Documentation: Determine operational feasibility by evaluating complex problem definitions, and demonstrate solutions via detailed flowcharts, technical layouts, and clear code comments.System Stabilization: Exercise advanced proficiency in establishing root causes of application errors, repairing bugs swiftly, and monitoring performance metrics to ensure continuous system stabilization<ul><li>Any other task is given by the Manager.</li></ul>Technical Skills<ul><li>Must possess good skills in web research.</li><li>Strong experience with API integrations and backend development.</li><li>Strong knowledge of PHP web frameworks (such as Laravel, and Magento)</li><li>Cross-browser compatibility, Web User Interface Design (UI), Security Principles, Object-Oriented Design, Web Services (REST/SOAP) and Familiarity with databases MySQL</li><li>System Maintenance: Proven experience in planning and delivering software platforms used across multiple products, including configuration change tracking and scheduled application updates.</li></ul>Management Skills:<ul><li>Must be energetic, motivated and creative mind for designing websites and advertising.</li><li>Strong work ethic and personal accountability</li></ul>Qualification:<ul><li>Bachelor&rsquo;s degree in Computer Science/Software Engineering.</li><li>Master&rsquo;s will be preferred.</li></ul>Work Hours:5 days a week (42 hours/week), but must be available online in case of urgent tasksExperience:3-5-years professional experience in web developmentAge: 20 &ndash; 40 yearsGender: No restriction<ul><li>Job Type:</li></ul>Full-TimeJob Type: Full-timePay: Rs80,000.00 - Rs100,000.00 per monthWork Location: In person

Senior Software Developer

limelight entertainment and marketing solutions

Limelite Entertainment &amp; Marketing Solutions is hiring a Web Developer for a 2-month project-based onsite role. The ideal candidate should have strong experience in PHP development and custom website development, along with skills in HTML, CSS, JavaScript, and MySQL.Key Requirements:<ul><li>Strong experience in PHP development</li><li>Experience in custom website development</li><li>Proficiency in HTML, CSS, JavaScript, PHP, and MySQL</li><li>Ability to support and collaborate with an in-house developer</li><li>Experience in WordPress customization will be a plus</li><li>Good understanding of responsive design and basic UI/UX principles</li><li>Ability to troubleshoot and fix bugs and technical issues</li><li>Strong communication and time management skills</li></ul>Contract: 2 MonthsLocation: Gulshan-e-Iqbal, Block 6Timings: 10:00 AM &ndash; 7:00 PMWork Location: In person

Web Developer (Project Based)

Appicoders Inc.

Mid&ndash;Senior React Developer (React.js &amp; React Native)Location: Shahrah-e-Faisal, Karachi Working Hours: 11:00 AM &ndash; 8:00 PM &ndash; Monday to Thursday (Friday Work from Home) Job Type: Full-Time (Onsite)READ BEFORE APPLYINGWe are seeking a highly skilled and experienced Mid&ndash;Senior React Developer with a proven track record of successfully designing, developing, and delivering production-grade Web Applications and Mobile Applications using React.js and React Native.This is NOT a position for interns, junior developers, fresh graduates, or candidates with limited commercial experience.We are looking for a professional who can take ownership of projects from concept to deployment, solve complex technical challenges independently, and consistently deliver high-quality applications in a fast-paced environment.Candidates must demonstrate hands-on experience building and maintaining scalable web and mobile applications that are actively used by real customers and businesses.About the RoleAppicoders Inc. is seeking a talented Mid&ndash;Senior React Developer who will play a key role in developing modern web and mobile solutions for international clients.The ideal candidate should have strong expertise in React.js for web development and React Native for cross-platform mobile application development. You will work closely with UI/UX designers, backend engineers, QA teams, and project managers to build high-performance, scalable, and user-friendly digital products.This role requires someone who is passionate about creating exceptional user experiences, writing clean and maintainable code, and staying updated with modern frontend development practices.Key Responsibilities<ul><li>Develop, maintain, and enhance scalable web applications using React.js</li><li>Build, deploy, and maintain cross-platform mobile applications using React Native (iOS &amp; Android)</li><li>Translate UI/UX designs into responsive, pixel-perfect interfaces</li><li>Integrate RESTful APIs, GraphQL APIs, and third-party services</li><li>Implement efficient state management solutions using Redux Toolkit, Redux, Context API, or Zustand</li><li>Optimize application performance, responsiveness, and user experience</li><li>Develop reusable components and maintain scalable code architecture</li><li>Implement authentication, authorization, and security best practices</li><li>Integrate real-time communication features such as chat, notifications, and live updates</li><li>Participate in code reviews and maintain development standards</li><li>Collaborate closely with backend developers, designers, QA engineers, and project stakeholders</li><li>Troubleshoot, debug, and resolve production issues efficiently</li><li>Publish and maintain applications on Apple App Store and Google Play Store</li><li>Contribute to technical planning, architecture discussions, and product improvements</li></ul>Required Technical SkillsReact.js (Web Development)Candidates must have strong expertise in:<ul><li>React.js (Hooks, Functional Components)</li><li>JavaScript (ES6+) and TypeScript</li><li>Redux Toolkit / Redux</li><li>Context API</li><li>React Router</li><li>Component-Based Architecture</li><li>Responsive Web Development</li><li>REST API Integration</li><li>GraphQL Integration</li><li>Form Handling &amp; Validation</li><li>State Management</li><li>Performance Optimization</li><li>Cross-Browser Compatibility</li><li>Error Handling &amp; Debugging</li></ul>React Native (Mobile Development)Candidates must have hands-on experience with:<ul><li>React Native Application Development</li><li>Android &amp; iOS App Development</li><li>React Navigation</li><li>Native Device Integrations</li><li>App Performance Optimization</li><li>Deep Linking</li><li>Push Notifications</li><li>OTA Updates</li><li>App Store &amp; Play Store Deployment</li><li>Mobile Security Best Practices</li><li>App Lifecycle Management</li></ul>Advanced Integrations &amp; FeaturesProven implementation experience in the following areas is highly preferred:<ul><li>Google Maps API &amp; Location Services</li><li>Firebase Integration</li><li>Firebase Authentication</li><li>Firebase Cloud Messaging (FCM)</li><li>Social Login Integrations</li><li>Google Login</li><li>Apple Login</li><li>Facebook Login</li><li>Push Notifications</li><li>Real-Time Chat Applications</li><li>Socket.IO / WebSocket Integration</li><li>Video Calling Features</li><li>Voice Calling Features</li><li>Payment Gateway Integrations</li><li>Media Upload &amp; Streaming</li><li>Authentication &amp; Authorization Systems</li><li>Multi-Step User Workflows</li></ul>Tools &amp; Development Practices<ul><li>Git / GitHub / GitLab</li><li>Agile &amp; Scrum Methodologies</li><li>Jira, ClickUp, or Similar Project Management Tools</li><li>CI/CD Workflows</li><li>Code Review Practices</li><li>Unit Testing &amp; Debugging</li><li>API Testing Tools (Postman, Swagger)</li></ul>Required Qualifications<ul><li>Bachelor's Degree in Computer Science, Software Engineering, or related field</li><li>4&ndash;7+ years of professional experience with React.js and React Native</li><li>Proven portfolio of delivered web applications and mobile apps</li><li>Strong understanding of software development life cycle (SDLC)</li><li>Experience working with production-level applications</li><li>Strong analytical and problem-solving abilities</li><li>Excellent communication and collaboration skills</li><li>Ability to work independently and take ownership of projects</li></ul>Preferred Additional SkillsThe following skills will be considered a strong advantage:<ul><li>Next.js</li><li>Expo Framework</li><li>TypeScript</li><li>Node.js</li><li>Express.js</li><li>Laravel API Integration</li><li>AWS or Cloud Services</li><li>Docker</li><li>CI/CD Pipelines</li><li>Mobile App Analytics &amp; Monitoring</li><li>Experience with SaaS Platforms</li></ul>What We Offer<ul><li>Competitive Mid&ndash;Senior Level Salary Package</li><li>Performance-Based Annual Increments</li><li>Professional &amp; Growth-Oriented Environment</li><li>Exposure to International (US) Clients</li><li>Leadership &amp; Technical Advancement Opportunities</li><li>Family Medical Coverage (Including Parents)</li><li>Provident Fund (PF)</li><li>Paid Annual Leaves</li><li>Long-Term Career Growth &amp; Stability</li></ul>How to ApplyPlease apply via email at hr@appicoders.com only if you have substantial hands-on experience in both React.js and React Native and can demonstrate a proven history of delivering production-ready applications.When applying, please include:<ul><li>Updated Resume/CV</li><li>Portfolio of Web Applications</li><li>App Store &amp; Google Play Store Links</li><li>GitHub Profile (if available)</li><li>Examples of React.js and React Native projects you have worked on</li></ul>Only shortlisted candidates meeting the experience requirements will be contacted.Work Location: In person

Mid–Senior React Developer (React.js & React Native)

Asianet Pakistan

What We&rsquo;re Looking for Education &amp; Experience<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field</li><li>3&ndash;5 years of experience developing, optimizing, and maintaining applications using C# and C++ in Microsoft Visual Studio</li><li>Experience working in an Agile development environment</li></ul>Technical Skills<ul><li>Programming Languages: C#, C++, Python (for AI/ML integration), JavaScript/TypeScript</li><li>Web Frameworks: ASP.NET, .NET Core, MVC, Angular</li><li>API Development &amp; Integration: RESTful APIs, SOAP, JSON, XML, third-party integrations</li><li>Database Management: SQL Server, MySQL; database design and optimization</li><li>Cloud &amp; DevOps: Azure / AWS / GCP, CI/CD pipelines, containerization</li><li>Front-End Skills: HTML5, CSS3, Angular, Bootstrap, responsive design</li><li>Version Control &amp; Collaboration: Git, GitHub, GitLab, Bitbucket</li><li>Testing &amp; QA: Unit testing, integration testing, automated testing frameworks</li><li>Performance &amp; Optimization: Profiling, memory management, algorithm optimization</li><li>Security: Authentication/authorization, data encryption, secure coding practices</li><li>AI &amp; Machine Learning Skills:</li><li>Knowledge of ML frameworks such as TensorFlow.</li><li>Experience integrating AI/ML models into backend systems</li><li>Natural Language Processing (NLP) and/or computer vision experience</li><li>Familiarity with AI APIs (OpenAI, Azure AI, AWS, Google AI)</li><li>Tools: Visual Studio, Postman, Jira, Confluence, logging &amp; monitoring tools</li></ul>Core Skills<ul><li>Strong analytical and problem-solving skills</li><li>Excellent debugging and troubleshooting capabilities</li><li>Ability to work independently and collaboratively in teams</li><li>Time management and ability to handle multiple tasks</li><li>Strong communication and documentation skills</li></ul>Key Responsibilities Back-End Development<ul><li>Design, develop, and maintain server-side logic for applications and workflows</li><li>Integrate third-party systems using APIs and Web Services</li><li>Build custom workflows, automations, and data pipelines to enhance platform functionality</li><li>Integrate AI/ML models into existing applications for intelligent features and analytics</li></ul>Collaboration<ul><li>Work closely with developers, content teams, and stakeholders to deliver high-quality solutions</li><li>Troubleshoot and resolve technical issues related to desktop and web-based integrations</li></ul>Testing &amp; Optimization<ul><li>Conduct thorough testing for performance, functionality, and security</li><li>Continuously optimize and enhance new and existing software solutions</li></ul>Job Type: Full-timeApplication Question(s):<ul><li>What is your current Salary?</li></ul>Experience:<ul><li>Software Developer: 2 years (Preferred)</li></ul>Work Location: In person

Software Developer

Astrik

UI/UX DeveloperA UI/UX Developer is responsible for creating intuitive, visually appealing, and user-friendly interfaces for digital products such as websites, mobile apps, and software applications. Here's a comprehensive job description for a UI/UX Developer:Job Overview:As a UI/UX Developer, you will play a crucial role in designing and implementing the user interface and user experience of our digital products. You will work closely with cross-functional teams including designers, developers, and product managers to create seamless, responsive, and engaging user interfaces that meet both user needs and business goals.Key Responsibilities:<ul><li>User Research and Analysis:</li></ul>Conduct user research to understand user needs, preferences, and behaviors.Analyze user feedback and usage data to identify areas for improvement.<ul><li>UI/UX Design:</li></ul>Design intuitive and visually appealing user interfaces for web and mobile applications.Create wireframes, prototypes, and mockups to communicate design ideas.Ensure consistency in design across all platforms and devices.Collaborate with designers to translate design concepts into interactive prototypes.<ul><li>Front-end Development:</li></ul>Implement responsive and pixel-perfect user interfaces using HTML, CSS, and JavaScript.Optimize UI performance for fast loading times and smooth user experience.Collaborate with back-end developers to integrate front-end components with server-side logic.Stay updated on emerging front-end technologies and best practices.<ul><li>Usability Testing:</li></ul>Conduct usability testing sessions to gather feedback and identify usability issues.Iterate on designs based on user feedback and testing results.Advocate for user-centered design principles throughout the development process.<ul><li>Documentation and Communication:</li></ul>Document design decisions, guidelines, and UI patterns for reference.Communicate design ideas and concepts effectively to cross-functional teams.Collaborate with product managers to prioritize features and roadmap items.Required Technical Skills:<ul><li>JavaScript</li><li>jQuery</li><li>React.js</li><li>HTML</li><li>CSS</li><li>Bootstrap</li><li>Php</li><li>MySQL</li></ul>Skills and Qualifications:<ul><li>Bachelor's degree in Computer Science, Human-Computer Interaction, Design, or related field.</li><li>Experience in WordPress and shopify development is a plus.</li><li>Proven experience as a UI/UX Developer or similar role.</li><li>Proficiency in front-end development technologies such as HTML5, CSS3, JavaScript, and frameworks like React or Angular.</li><li>Experience with UI design tools such as Sketch, Adobe XD, or Figma.</li><li>Strong understanding of user-centered design principles and best practices.</li><li>Ability to work effectively in a fast-paced, agile environment.</li><li>Portfolio showcasing previous UI/UX design and development projects is a plus.</li></ul>Job Type: Full-timeWork Location: In person

UI/UX Developer

Confiz

<div>Confiz is looking for a Principal Software Engineer (.NET). Candidates should have around 5 to 8 years of experience in .NET. You must have strong expertise in the domain and must be able to deliver well accordingly to the responsibilities.
Responsibilities
<ul><li>Researching, designing, implementing and maintaining high-quality software systems using .NET technologies to meet internal/external client&rsquo;s requirements.</li>
<li>Rewriting existing service on newest technology stack and adding new functionality to it.</li>
<li>Refactoring of critical parts of production products.</li>
<li>Cooperate with other software developers, testers, BI developers, business and systems analysts, and solution architects</li>
</ul>
Requirements
<ul><li>At least 5 to 8 years of experience in core .NET concepts</li>
<li>Strong knowledge of .NET Core 2.2-3.0 and .NET 3.5 &ndash; 4.8</li>
<li>MS SQL, EntityFramework</li>
<li>Web API/WCF, Web Services, ASP.NET Core</li>
<li>Message Queue (Azure ServiceBus, RabbitMQ) , Microservices (good to have)</li>
<li>Experience in Azure: LogicApps/Functions, Service Fabric, API Apps, AKS, Redis</li>
<li>Experience in MS CRM / MS CRM Web service</li>
<li>Experience in GIT / Azure DevOps</li>
<li>Async programming</li>
<li>Integration with 3rd party</li>
<li>Design/Scrum Methodology</li>
<li>Being result-oriented, ability to make things done</li>
<li>Good communication skills</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>

Principal .NET Engineer

Explore 20+ Backend developer in Karachi this July. Find roles across top companies and apply now to boost your career.