web engineer

Graphite Work

Web Performance Optimisation Specialist (On-site)We are looking to hire an experienced Web Performance Specialist to optimise our website speed and improve Core Web Vitals (LCP, CLS, TBT).The ideal candidate will be responsible for maintaining website performance, improving page speed, resolving technical issues, and ensuring optimal indexing and search performance.Key Responsibilities<ul><li>Optimise website speed and performance</li><li>Improve Core Web Vitals (LCP, CLS, TBT)</li><li>Identify and fix performance bottlenecks</li><li>Maintain and enhance website ranking</li><li>Ensure proper indexing and resolve technical errors</li><li>Improve frontend performance and user experience</li></ul>Requirements<ul><li>Minimum 5 years of experience in web performance optimisation</li><li>Strong understanding of Core Web Vitals and performance metrics</li><li>Experience with frontend performance and optimisation techniques</li></ul>Technical Skills<ul><li>PHP</li><li>HTML5</li><li>CSS</li><li>JavaScript</li><li>jQuery</li></ul>Job Duration<ul><li>Initial 3-month probation period</li><li>Contract may be extended based on performance and professionalism</li></ul>Application InstructionsPlease ensure you have reviewed the salary and job contract carefully. Both are fixed and non-negotiable. Do not apply if you are not comfortable with these terms.Work Location<ul><li>On-site (In person)</li><li>Location: Gulshan-e-Iqbal, Karachi (near maskan chorangi)</li></ul>Pay: Rs45,000.00 per monthWork Location: In person

Web Performance Engineer & Technical SEO Specialist

Limitless Care

<div>Limitless Care is a healthcare services provider dedicated to delivering comprehensive medical coverage and wellness solutions. Our mission is to make quality healthcare accessible, seamless, and supportive for individuals and organizations. Through innovative healthcare programs, a strong provider network, and a patient-centered approach, Limitless Care focuses on improving health outcomes while ensuring a smooth and reliable healthcare experience for our members.
Job Summary:
We are seeking a passionate and results-driven Senior Software Engineer to join our team. The Senior Software Engineer will drive the design, development, and optimization of scalable software solutions and collaborate with cross-functional teams to translate business requirements into technical solutions.
Key Responsibilities:
<ul><li>Database &amp; Application Management: Develop and maintain high-performance databases and modular software applications, ensuring integration and scalability
</li><li>Software Testing: Ensure functionality, optimization, and regulatory compliance, conducting unit, integration, and performance tests.
</li><li>NET Technologies Expertise: Utilize .NET (Web API, MVC, SQL Server) to build and optimize applications, ensuring secure and efficient data handling.
</li><li>Collaboration &amp; Documentation: Work closely with cross-functional teams and provide clear documentation on system architecture, code, and processes.
</li><li>Regulatory Compliance &amp; Best Practices: Ensure software development complies with data integrity, security, and auditability.
</li>Continuous Improvement: Stay current with industry trends and implement improvements to enhance development processes, code quality, and system performance. 
<li>
</li></ul> 
 
Requirements<div> 
To succeed in this role, you should have the following skills and experience:
 
<ul><li>Bachelor&rsquo;s degree in computer engineering, Computer Science, or equivalent discipline.
</li><li>3-5 years of experience.
</li><li>.NET technologies (Web Api, MVC, SQL server)
</li><li>Experience in development for CRM/ERP applications is a plus
</li><li>Knowledge of any of the following: Azure, MongoDB, Magento or Angular 2 is a plus.
</li><li>Very good in English, both verbal and written.</li></ul></div></div>

Senior Software Engineer

Prime Health Services

Job SummaryWe are seeking a highly motivated and experienced .NET Engineer to join our development team. The ideal candidate will be responsible for designing, developing, and maintaining scalable, secure, and high-performance applications using C#, ASP.NET Core, and modern .NET technologies. This role requires strong technical expertise, attention to detail, and the ability to work effectively in a collaborative, Agile environment.Key Responsibilities<ul><li>Design, develop, and maintain applications using .NET Core / .NET 6+, C#, and ASP.NET Core</li><li>Build and integrate RESTful APIs and microservices-based solutions</li><li>Develop and optimize database solutions using SQL Server</li><li>Write clean, efficient, and well-documented code following best practices</li><li>Collaborate with cross-functional teams including product, QA, and frontend developers</li><li>Perform code reviews, testing, debugging, and performance optimization</li><li>Contribute to CI/CD pipelines, deployment, and release management</li><li>Ensure application security, scalability, and reliability</li><li>Participate in Agile/Scrum processes, including sprint planning and stand-ups</li></ul>Required Qualifications<ul><li>Bachelor&rsquo;s degree in Computer Science, Software Engineering, or a related field</li><li>Proven experience as a .NET Developer / .NET Engineer / Software Engineer</li><li>Strong proficiency in C#, ASP.NET Core, and .NET Framework / .NET Core</li><li>Hands-on experience with SQL Server, Entity Framework, and LINQ</li><li>Solid understanding of Object-Oriented Programming (OOP) and Design Patterns</li><li>Experience building and consuming REST APIs</li><li>Familiarity with Git and version control systems</li><li>Knowledge of web technologies (HTML, CSS, JavaScript)</li><li>Strong analytical and problem-solving skills</li></ul>Job Type: Full-timeWork Location: In person

.Net engineer

Devengine

<div><div>Remote - US
|
Contract</div>
<div><div><div><div><div>
Our client is a fast-growing healthcare company providing autism diagnostics, therapy, and medical services to young children across the United States. As part of that growth, the Data, AI, and Automation team is building the cloud infrastructure needed to move internal algorithmic tools from desktop execution to production-grade, browser-based services.</div> 
 
<div>They're looking for a Senior Backend Engineer (6+ years of experience) to own the web application platform that productizes an in-house scheduling solver as a secure, internal cloud service. The solver&mdash;a Python-based optimization engine&mdash;currently runs as a desktop app with Excel workflows. Your job is to build the cloud platform around it: authentication, backend orchestration for long-running workloads, artifact and version management, integrations with BigQuery and Google Sheets, and production-grade operability. The web UI is intentionally simple and utilitarian&mdash;a small set of buttons, a run console, and basic pages for upload, run, status, download, and publish. The core of this role is backend architecture, not frontend polish.</div> 
 
<div>You'll collaborate closely with a dedicated algorithm expert who owns the solver codebase&mdash;you won't need to develop or deeply understand the Python algorithm itself. The two codebases have clear domain ownership connected by well-defined input/output contracts. You'll report to the VP and have significant autonomy to make architectural decisions and drive the platform forward. Longer term, the platform you build is designed to be extensible: other teams at the company are building their own algorithms and automation, and your platform will serve as the template for containerizing and orchestrating additional workloads. This is the foundation of a broader internal platform, not a one-off project.</div> 
 
<div>This is a long-term contract opportunity without an end date. The engagement is fully remote, and candidates can be located anywhere in Latin America. You'll need strong English communication skills (B2+ or higher) for this role.</div>
 
Responsibilities 
<ul><li>Own the web application platform on GCP: authentication/authorization, APIs, storage, service architecture, and a simple utilitarian web UI.</li>
<li>Build reliable long-running job execution for the solver&mdash;queueing, concurrency limits, cancellation, retries&mdash;optimized for low wait time and iterative use.</li>
<li>Own end-to-end workflow I/O and integrations: maintain the existing Excel-in/Excel-out experience, enable safe and auditable publish to Google Sheets, and integrate with BigQuery for data enrichment and metrics/reporting.</li>
Define and maintain the platform<li> solver contract (I/O bundle format, versioning, error taxonomy, logging) in partnership with the algorithm owner.</li>
<li>Implement PHI-safe security and compliance controls in partnership with the Security Engineer: least-privilege IAM, encryption, secrets management, and audit logging.</li>
<li>Establish production operability in partnership with the DevOps Engineer: CI/CD, monitoring/alerting, and support/run-diagnostics tooling.</li>
</ul>Mandatory Requirements 
<ul><li>6+ years building production backend systems and platforms (internal tools and/or customer-facing).</li>
<li>Strong experience with client-server distributed architectures.</li>
<li>Comfortable designing and building asynchronous/event-driven systems (e.g., publish/subscribe, queues, streaming) for long-running workloads.</li>
<li>Proficiency building systems that implement stateful resources: relational and/or non-relational databases and object storage.</li>
<li>Strong familiarity with at least one major cloud provider (GCP, AWS, or Azure)&mdash;with the ability and willingness to work in GCP as the production environment.</li>
<li>Comfortable containerizing and packaging application code (Docker, container registries, orchestration).</li>
<li>Comfortable using Git and CI/CD tools (e.g., GitHub Actions/Workflows).</li>
<li>Ability to model and implement execution pipelines using state machines/workflows (durable job state, retries, idempotency, compensating actions).</li>
<li>Strong experience in at least one backend language (Go, Java, Python, or equivalent). The solver codebase is Python&mdash;you don't need to be a Python expert, but you must be comfortable reading, packaging, and containerizing Python code.</li>
<li>Experience designing secure systems (authn/authz, secrets handling, encryption, audit logging), including PHI/PII-safe logging.</li>
<li>Strong cross-team collaboration skills and ability to define ownership boundaries and contracts.</li>
</ul>Nice-to-Have 
<ul><li>Experience with Google Cloud Platform specifically (Cloud Run, Pub/Sub, BigQuery, IAM).</li>
<li>Experience with optimization/solver workloads (OR-Tools, MILP, etc.).</li>
<li>Experience with healthcare data compliance (HIPAA) and BAA-oriented vendor setups.</li>
<li>Experience with cloud-native container orchestration (e.g., Kubernetes, Cloud Run).</li>
<li>Experience with Excel ingestion/export pipelines.</li>
<li>Experience with JavaScript frameworks (e.g., React) for simple internal UIs.</li>
</ul>What We're Looking For Beyond the Tech Stack 
Beyond the technical requirements, this team is looking for a specific type of engineer: 
<ul><li>Startup mindset over big-tech process. You own outcomes, not tickets. You think about whether the work you're doing is useful, not just whether it's assigned.</li>
<li>Genuine curiosity and love of learning. You pick up new domains and tools quickly because you're naturally drawn to understanding how things work. You've built things on your own time just to learn.</li>
<li>Adaptability over certification stacking. They care about foundational engineering ability and the capacity to grow, not a perfect resume match on every specific technology.</li>
<li>Comfort with ambiguity. You're building infrastructure for a team that includes non-engineers who are developing algorithms. The terrain is new and evolving, and you're excited by that, not unsettled.</li>
</ul>What Success Looks Like 
<ul><li>3 months &mdash; V1 prototype in pilot: V1 web app platform running real Base Schedule workflows end-to-end for a small pilot cohort (Google SSO, validate/solve job orchestration, Excel artifact management, per-run status/logs, and a basic publish flow).</li>
<li>6 months &mdash; V1 rollout complete: V1 is the default execution path for schedulers (production rollout complete): reliable parallel runs with low queue time, versioned publish to Google Sheets with audit trail, solver quality metrics landing in BigQuery for analytics, and a repeatable release/rollback workflow with DevOps.</li>
<li>9 months &mdash; V2 in prototype: V2 Week Ahead workflow running in prototype (cloud-executed Week Ahead + early cross-center allocation orchestration), with the operational scaffolding needed to evaluate rollout (monitoring, support playbook, and clear success criteria for V2).</li>
</ul>Of Note 
<ul><li>A company laptop will be provided.</li>
<li>HIPAA compliance training is required before the start date.</li>
<li>Completed background checks will be required before the start date if you are selected as a winning candidate.</li>
<li>As a winning candidate, you will be required to disclose your engagement with DevEngine as a primary client on your professional LinkedIn profile.</li>
</ul>
<div>While we strive to respond to all applicants, please understand that due to the high volume of applications we receive, providing individual feedback or responses to every candidate may not be feasible. Rest assured that your application will be carefully reviewed and considered. We appreciate your understanding and interest in joining our team.</div></div></div></div></div></div>

Senior Backend Engineer

CodingKey

Job DescriptionJob Overview We are seeking a highly experienced Senior Full Stack Engineer to design and build modern AI-enabled web applications and backend services. The role focuses on NodeJS, Angular, and TypeScript, with growing integration of Large Language Models (LLMs) and AI-driven workflows. You will work on scalable client-server systems, AI-powered features, and real-time integrations. Candidates with experience building conversational AI systems or Voice Assistants will be given preference. This role requires engineers who can combine strong full-stack development skills with modern AI tooling and AI-assisted development practices.Responsibilities: Design, develop, and maintain scalable web applications using NodeJS, Angular, and TypeScript. Architect and implement end-to-end full stack solutions including frontend, backend services, APIs, and integrations. Build clean, maintainable, and well-tested code following engineering best practices. Develop and maintain RESTful and event-driven APIs. Integrate third-party services and external APIs. Work closely with DevOps to optimize deployment, scalability, reliability, and performance. Implement prompt engineering, tool usage, and AI-driven workflows. Work with AI teams to integrate AI services into production systems. Contribute to the development of conversational AI and voice assistant platforms. Implement real-time workflows, streaming integrations, or conversational pipelines. Integrate telephony APIs, real-time communication systems, or conversational interfaces where required. Conduct code reviews and mentor junior engineers. Implement unit tests, integration tests, and automated testing pipelines. Troubleshoot production issues and improve system reliability. Ensure security, authentication, and data protection best practices. Maintain technical documentation and knowledge sharing. Leverage AI-powered development tools (e.g., Cursor, Copilot, LLM-based coding assistants) to accelerate development while maintaining engineering quality. Continuously evaluate modern AI development workflows and tools.Requirements: Bachelor&rsquo;s/Master&rsquo;s degree in computer science, information technology, software engineering, or related field. 5+ years of professional experience as a Full Stack Engineer. Proven expertise in NodeJS, Angular, and TypeScript. Strong proficiency in JavaScript ecosystem and modern web frameworks. Solid experience in full stack application architecture. Experience designing scalable backend services and APIs. Strong knowledge of SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.). Experience with RESTful APIs and distributed systems. Experience integrating third-party APIs and external platforms. Solid understanding and proven hands-on experience with WebSockets. Practical experience or familiarity with LLMs. Experience integrating AI APIs such as OpenAI, Gemini, or similar platforms. Understanding of AI-assisted software development tools (e.g., Copilot, Cursor). Experience working with cloud platforms (AWS, GCP, or Azure). Familiarity with Docker and containerized environments. Understanding of CI/CD pipelines and automated deployment. Excellent problem-solving and critical-thinking skills. Effective communication and collaboration abilities. Candidates with experience in cloud platforms such as AWS and Google Cloud will be preferred.Location: RemoteJob Type: Full-timeWork Location: Remote

Senior Full Stack Engineer (NodeJS, Angular, TypeScript)

Zeal

<div>
 
 About Zeal
 
 
 
 Zeal is addressing the critical challenge of untapped transactional data. At the moment, whenever a transaction is processed on a POS terminal (payment card machine), physical retailers have no idea who the paying customer is, unless they use a loyalty program. Think of when you go to a supermarket and you pay by card , unless you go to a supermarket that has a loyalty program and you get your loyalty card out, the POS terminal doesn't tell the retailer if you're a new or returning customer, demographics, gender, etc. Unlike e-ecommerce, in physical retail customer identification always had to be a separate step because the payment terminal is not built to self-identify the paying customer. Hence, a plethora of valuable data is lost or underutilized. With Zeal&rsquo;s advanced Smart POS plugin, the company integrates with POS terminals globally to provide payment acquirers and ISVs with a unique differentiator for their POS terminals. The merchants of our partners benefit from world-class data, analytics &amp; tools to predict consumer behavior using Artificial Intelligence, enabling merchants to unlock the full potential of transactional data.
 
 
 
 About The Role
 
 
 
 As a Senior Frontend Engineer at Zeal, you'll be responsible for collaborating with cross-functional teams to design and develop responsive web applications using cutting-edge technologies like React.js. Your role involves maintaining and enhancing applications, conducting code reviews, and troubleshooting issues to ensure optimal performance. Strong problem-solving skills, Agile/Scrum experience, and effective communication are key attributes for success in this role. Knowledge of financial industry practices would be a valuable plus.
 
 
 
 Your Main Responsibilities Are To
 
 
 
 <ul>
 <li>
 Work closely with UX/UI designers and product managers to understand project requirements and objectives.
 </li>
 <li>
 Participate in collaborative brainstorming sessions to contribute technical insights and recommendations.
 </li>
 <li>
 Design and develop robust and scalable web applications.
 </li>
 <li>
 Utilize React.js, Next.js, React Query, Styled Components and Tailwind to build responsive and visually appealing user interfaces.
 </li>
 <li>
 Implement and maintain state-of-the-art frontend architectures to ensure optimal performance.
 </li>
 <li>
 Conduct regular code reviews to ensure adherence to coding standards, best practices, and scalability.
 </li>
 <li>
 Troubleshoot and debug issues, and implement solutions to improve application reliability.
 </li>
 <li>
 Optimize web application performance and ensure scalability for a seamless user experience.
 </li>
 <li>
 Mentor junior engineers, promoting best coding and engineering practices
 
 
 </li>
 </ul>
 
 The Ideal Candidate Should Have
 
 
 
 <ul>
 <li>
 4+ years of experience as a Frontend Engineer.
 </li>
 <li>
 Extensive experience with React.js and the React ecosystem.
 </li>
 <li>
 Solid understanding of web development fundamentals, including HTML, CSS, and JavaScript.
 </li>
 <li>
 Experience with state management libraries and design patterns.
 </li>
 <li>
 Familiarity with RESTful APIs and integration of third-party services.
 </li>
 <li>
 Strong problem-solving skills and meticulous attention to detail.
 </li>
 <li>
 Experience working in an Agile/Scrum development environment.
 </li>
 <li>
 Excellent communication and collaboration skills.
 </li>
 <li>
 Demonstrated ownership and commitment to code quality and reliability.
 </li>
 <li>
 Knowledge of financial industry practices and compliance standards is a plus.
 
 
 </li>
 </ul>
 
 What You&rsquo;ll Love About Us
 
 
 
 <ul>
 <li>
 Work from Anywhere: Enjoy the flexibility of remote work or join us in a hybrid setup. Your choice, your comfort.
 </li>
 <li>
 Flexibility &amp; Trust: We believe in autonomy. Set your own schedule and work in the way that best suits you.
 </li>
 <li>
 Competitive Compensation: We value your talent and offer packages that reflect it.
 </li>
 <li>
 Paid Time Off: Take the time you need to recharge and come back even stronger.
 </li>
 <li>
 Collaborative Culture: Join a team where trust, transparency, and continuous learning are at the heart of everything we do.
 </li>
 <li>
 Make an Impact: Have ideas to make things better? Awesome. We&rsquo;re all ears and ready to innovate.
 </li>
 </ul>
</div>

Senior Frontend Engineer

Klivvr

<div>
 We are hiring a highly skilled and experienced Senior Software Engineer in Backend to join our dynamic team. In this role, you will play a crucial part in designing, developing, and maintaining scalable and high-performance backend systems that drive our products and services. You will work closely with cross-functional teams to deliver high-quality solutions that meet business requirements and drive innovation.
 
 
 
 What you will do!
 
 
 
 <ul>
 <li>
 Architect, design, and implement robust and scalable backend systems using Typescript and MongoDB to support our web and mobile applications.
 </li>
 <li>
 Develop and maintain RESTful APIs for seamless communication between frontend and backend systems, ensuring high reliability, performance, and security.
 </li>
 <li>
 Collaborate with product managers, front-end, and designers to understand requirements, define technical specifications, and deliver solutions that meet user needs.
 </li>
 <li>
 Write clean, efficient, and maintainable code following best practices and design patterns for backend development in Typescript.
 </li>
 <li>
 Optimize backend systems and database queries for performance, scalability, and efficiency, and troubleshoot and debug issues as needed.
 </li>
 <li>
 Implement authentication, authorization, and access control mechanisms to protect sensitive data and ensure compliance with security standards and regulations.
 </li>
 <li>
 Work closely with DevOps engineers to deploy and manage backend services in production environments and implement monitoring and alerting solutions to ensure uptime and reliability.
 </li>
 <li>
 Conduct code reviews, provide constructive feedback, and mentor junior engineers to promote code quality, knowledge sharing, and professional growth.
 </li>
 <li>
 Stay up to date with the latest trends, technologies, and best practices in backend development, and proactively identify opportunities for improvement.
 </li>
 <li>
 Participate in Agile/Scrum ceremonies, including sprint planning, daily stand-ups, and retrospectives, to track progress and prioritize tasks, and contribute to the improvement of development processes, tools, and methodologies.
 
 
 
 
 
 </li>
 </ul>
 
 To succeed in the role, you&rsquo;ll need to have:
 
 
 
 <ul>
 <li>
 Minimum of 4 years of experience in backend development, with a strong proficiency in Typescript and MongoDB.
 </li>
 <li>
 Solid understanding of RESTful API design principles, HTTP protocols, and web standards.
 </li>
 <li>
 Experience with modern web development frameworks and libraries for building backend services in Typescript.
 </li>
 <li>
 Proficiency in working with MongoDB databases, including schema design, query optimization, and data modeling.
 </li>
 <li>
 Strong knowledge of software development principles, design patterns, and best practices, and experience with version control systems such as Git.
 </li>
 <li>
 Experience with cloud platforms and containerization technologies is a plus.
 </li>
 <li>
 Excellent problem-solving and analytical skills, with the ability to troubleshoot complex issues and propose effective solutions.
 </li>
 <li>
 Excellent communication and collaboration skills, with the ability to work effectively in a team environment.
 </li>
 <li>
 Experience with Agile/Scrum methodologies and working in an Agile development environment.
 </li>
 </ul>
</div>

Senior Software Engineer - Backend

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