senior front end engineer

Medsien Inc.

<div>Medsien is the leading provider of scalable remote care management for a quality patient experience. Hundreds of organizations trust Medsien's unparalleled technology solutions to implement exceptional remote care management programs, personalize every interaction, and improve the lives of the people who need it most. Based in San Francisco and venture-backed by top-tier investors, Medsien was founded to reimagine remote care management.

More than 60% of all U.S. adults&mdash;over 150 million people&mdash;live with at least one chronic condition, which requires dedicated, ongoing medical support outside the four walls of their doctor's office. And yet, only 20% of these patients have access to remote care from the comfort of their homes, putting their health at significant risk. Together, we can save lives and create a real impact.

Medsien is a venture-backed healthcare SaaS company experiencing rapid growth and looking to expand our team. We are seeking an experienced, organized, motivated, and passionate Front-End Engineer to join our team of talented and inspiring developers in a fast-paced environment.

As a Front-End Engineer, you'll work on new, exciting projects with complete autonomy. We're seeking a candidate who is passionate about building new applications from the ground up and who will join a growing team in developing products that enable providers to deliver high-quality services to their patients.

As a Front-End Engineer, you will:
<ul>
<li>Collaborate with UX designers and backend engineers to develop and maintain responsive single-page applications using React.</li>
<li>Provide technical guidance and mentorship.</li>
<li>Optimize application performance.</li>
<li>Develop and maintain reusable components and libraries.</li>
<li>Write clean, well-documented code that is scalable and maintainable.</li>
<li>Participate in code reviews and contribute to continuous improvement.</li>
<li>Keep up-to-date with emerging front-end technologies and industry trends.</li>
<li>Work closely with product managers to ensure the timely delivery of high-quality work.</li>
<li>Collaborate with UI/UX designer to ensure designs are technically feasible and user-friendly.</li>
<li>Understand how code fits into broader technical and/or business contexts.</li>
<li>Actively participate in code review and technical design reviews.</li>
<li>Work on medium to large projects.</li>
<li>Participate in all system/component implementation and design from development to production.</li>
<li>Research new technologies and prototype new ideas.</li>
<li>Ensure high testability and quality of delivered software.</li>
<li>Work with internal stakeholders to troubleshoot and fix defects in software.</li>
<li>Participate in building Scrum processes and agile culture within the company.</li>
</ul>
Please apply if you have:
<ul>
<li>Minimum 4 years of Front-End Engineering experience,</li>
<li>Strong knowledge and experience in front-end technologies, particularly React, Typescript, and Javascript.</li>
<li>Experience working with Redux-toolkit for state management.</li>
<li>Experience with integrating Restful APIs and WebSockets.</li>
<li>Proficiency in MUI for creating visually appealing and responsive designs.</li>
<li>Desire to write clean and reusable code to maintain high code quality.</li>
<li>Ability to use Figma for creating Pixel-Perfect implementations.</li>
<li>Familiarity with version control systems such as Git.</li>
<li>Perfect English skills, both written and oral.</li>
<li>Residence in central Istanbul.</li>
</ul>
For this position, we offer:
<ul>
<li>competitive USD salary and stock options,</li>
<li>Flexible vacation and PTO policies,</li>
<li>Fully remote work opportunities,</li>
<li>Training, mentorship, and coaching from leadership.</li>
</ul>
Please bear in mind that:
<ul>
<li>This is a permanent-term contractor job opportunity with Medsien Inc.
</li><li>Due to in-person collaboration requirements, candidates based in Istanbul are preferred.</li>
<li>All interviews will be conducted in English and the candidates having less than advanced level of English will be directly eliminated from the process regardless of their technical skills and expertise.</li>
</ul>
Our Process

We will review your application along with all the others we receive and pick the top profiles for a screening call. In many cases due to time constraints and our candidate volume, only the short-listed candidates are contacted but we do consider each application carefully. If you have been selected as a short-listed candidate, we will contact you for a short screening call to get to know you better. If you don't get a call, please don't be disappointed! We receive many applications for each role and must prioritize who we speak to.

Employment at Medsien is based solely on a person's merit and qualifications. We are committed to providing equal employment opportunity regardless of sex, age, race, color, national or ethnic origin, religion, marital status, pregnancy, sexual orientation, gender identity or expression, disability, age, citizenship, veteran or military status, and other legally protected characteristics.

Thank you for taking the time to apply for a position at Medsien!

Please visit the below links for GDPR details:

https://www.medsien.com/legal/employee-candidate-information-notice

https://www.medsien.com/legal/employee-candidate-explicit-consent-statement</div>

Senior Front-End Engineer

Fuse Energy

<div>
 Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy - fast. We're combining first-principles thinking with cutting-edge technology to build a radically better energy system. We raised $100M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, Box Group and strategic angels like Nico Rosberg, the Co-Founder of Solana and GPs behind Meta, Revolut, Spotify, Uber and more.
 
 
 We're creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass on savings to customers.
 
 
 But we're not stopping there. We're also building the Energy Network: a decentralised platform of smart devices that rewards users in Energy Dollars for electrifying their homes, shifting usage to off-peak hours, and helping balance the grid. This network strengthens grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries.
 
 
 
 Responsibilities
 
 
 
 <ul>
 <li>
 Build and maintain responsive, performant web applications using React, TypeScript, Next.js, and modern front-end practices
 </li>
 <li>
 Collaborate with backend engineers to implement APIs and ensure smooth data integration
 </li>
 <li>
 Work closely with product and design teams to deliver intuitive, user-friendly experiences
 </li>
 <li>
 Participate in prototyping and experimentation to test and validate new features
 </li>
 <li>
 Dig into data, validate ideas, and help define the product roadmap
 </li>
 <li>
 Contribute to our broader product direction and help shape the future of clean energy tech
 
 
 </li>
 </ul>
 
 Requirements
 
 
 
 <ul>
 <li>
 Bachelor's degree in a technical or analytical field, or equivalent practical experience
 </li>
 <li>
 5+ years of hands-on experience developing web applications with TypeScript, React, HTML, CSS, and Next.js
 </li>
 <li>
 Proven experience building and shipping consumer-facing products
 </li>
 <li>
 Strong communication skills and ability to collaborate effectively with cross-functional teams
 </li>
 <li>
 Understanding of performance optimization techniques for modern web applications
 
 
 </li>
 </ul>
 
 Benefits
 
 
 
 <ul>
 <li>
 Competitive salary and an equity sign-on bonus
 </li>
 <li>
 Biannual bonus scheme
 </li>
 <li>
 Fully expensed tech to match your needs
 </li>
 <li>
 Paid annual leave
 </li>
 <li>
 Breakfast and dinner for office based employees
 </li>
 </ul>
</div>

Heady

<div>About the role:

We are looking for a Senior Front End Engineer (ReactJS) who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the application. You will work with the UI/UX designer and bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works.

Primary Responsibilities:
<ul>
<li>Develop new user-facing features</li>
<li>Build reusable code and libraries for future use</li>
<li>Ensure the technical feasibility of UI/UX designs</li>
<li>Optimize application for maximum speed and scalability</li>
<li>Assure that all user input is validated before submitting to back-end</li>
<li>Collaborate with other team members and clients</li></ul> 


Qualification &amp; Skills:
<ul>
<li>Experience: 5 to 8 years</li>
<li>Bachelors degree or higher in Computer Science (or related field)</li>
<li>Proficient understanding of web markup, including HTML5, CSS3</li>
<li>Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS</li>
<li>Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery</li>
<li>Experience with one or more frameworks such as Bootstrap, AngularJS, Meteor and libraries such as jQuery, ExtJS, YUI, Prototype, Dojo, Sencha</li>
<li>Proficient understanding and knowledge of any 1 of these advanced JavaScript frameworks, such as AngularJS, KnockoutJS, BackboneJS, ReactJS, DurandalJS etc</li>
<li>Good understanding of asynchronous request handling, partial page updates, and AJAX</li>
<li>Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image</li>
<li>Familiarity with tools such as as Gimp or Photoshop is a plus</li>
<li>Proficient understanding of cross-browser compatibility issues and ways to work around them</li>
<li>Knowledge of one or more of the following is a plus Server side Python, node.js</li>
<li>Knowledge of Automated testing frameworks, and Git, Mercurial, is a must</li>
<li>Comfortable working in a fast paced, Agile, release often environment</li></ul> 


About Heady:

We offer a multitude of services &ndash; strategy, user experience design (UX), user Interface design (UI), software engineering, testing, marketing, analytics and maintenance &ndash; all of which come together to form a successful product. 
We use a hybrid model: Our engineers are based in India, while our UX, UI, strategy, and lead management are in the US. We are not an outsourcing agency; having both regular meetings and a local presence is important to us, just as it is to our clients.</div>

Senior Front End Engineer - ReactJS

Brillio LLC

<div><h1 class="jobSectionHeader">Architect</h1>
<div>Architect, XT</div><h6 class="jobSectionHeader">
Primary Skills</h6><ul><li>
AngularJS, React JS, Vue JS
</li></ul><h6 class="jobSectionHeader">Job requirements</h6><ul><li>
Job Title: Senior Lead Engineer / Front-End Engineering Manager (Angular 18 + NgRx) About the Role: We are seeking an experienced Senior Front-End Engineer or Engineering Manager with deep expertise in Angular 18, NgRx, and modern front-end architecture to lead and grow a high-performing team of developers. In this dual-role, you&rsquo;ll own the front-end technical roadmap, guide architectural decisions, and mentor engineers &mdash; while also contributing hands-on to building robust, scalable, and maintainable web applications. Ideal candidates are passionate about frontend innovation and team leadership. Key Responsibilities: Technical Leadership &bull; Architect and lead development of complex front-end solutions using Angular 18, NgRx, RxJS, and TypeScript. &bull; Define and enforce code quality, performance, and maintainability standards across the team. &bull; Guide adoption of modern Angular features such as Signals, Standalone Components, and modular design patterns. &bull; Work closely with backend, DevOps, and design teams to deliver performant and scalable applications. &bull; Own state management strategy using NgRx Store, Effects, Selectors, and Entity architecture. &bull; Drive decisions on front-end tooling, testing strategy, CI/CD integration, and deployment processes. Team &amp; People Management &bull; Lead a team of front-end engineers, providing regular coaching, technical mentorship, and performance feedback. &bull; Foster a culture of learning, innovation, accountability, and engineering excellence. &bull; Participate in recruitment and onboarding of front-end talent. &bull; Collaborate with product managers and designers to plan sprints, define deliverables, and ensure alignment with business goals. &bull; Track project delivery, remove blockers, and ensure timely execution. Required Skills &amp; Qualifications: &bull; 8+ years of front-end development experience, with at least 2 years in a leadership or managerial role. &bull; Expert-level knowledge of Angular 17+, NgRx, and RxJS. &bull; Strong experience architecting large-scale SPA applications and designing modular, reusable components. &bull; Excellent command of TypeScript, SCSS, and modern front-end tooling. &bull; Proven ability to lead engineering teams in an Agile/Scrum environment. &bull; Strong understanding of RESTful APIs and modern front-end/back-end integration patterns. &bull; Demonstrated ability to mentor, coach, and grow junior and mid-level engineers. &bull; Excellent problem-solving, communication, and stakeholder management skills.</li></ul></div>

Architect

Qureos 

This is a full-time remote role for a Senior Backend Engineer (Ruby on Rails). The Senior Backend Engineer will be responsible for back-end web development, software development, object-oriented programming (OOP) and programming in a fast-paced, collaborative environment. The engineer will work with teams to design, implement, and maintain high-quality back-end code for our platform. This role requires experience in software engineering and building scalable web applications.&nbsp; Key Responsibilities: Backend Development:&nbsp; ● Lead the development of back-end services and APIs using Ruby on Rails ensuring high performance, scalability, and security.&nbsp; ● Implement reusable and modular code, following best practices and coding standards to maintain code quality and maintainability.&nbsp; ● Optimize database performance and queries to ensure efficient data retrieval and processing. Technical Leadership:&nbsp; ● Provide technical leadership and guidance to the backend development team, mentoring junior developers and fostering a culture of collaboration and innovation. ● Conduct code reviews and performance audits, ensuring adherence to coding standards and best practices for backend development.&nbsp; ● Stay updated with the latest developments in Ruby on Rails and backend technologies, advocating for continuous improvement.&nbsp; System Architecture:&nbsp; ● Collaborate with front-end developers, product managers, and other stakeholders to design and implement robust and scalable system architectures.&nbsp; ● Participate in architectural discussions and contribute to the design of new features and system improvements.&nbsp; ● Ensure the backend services are seamlessly integrated with front-end components and third-party services. API Development and Integration:&nbsp; ● Design, implement, and maintain RESTful APIs to support front-end functionality and third-party integrations.&nbsp; ● Ensure APIs are well-documented, tested, and optimized for performance and security.&nbsp; ● Collaborate closely with API consumers to ensure smooth integration and functionality.&nbsp; Testing and Deployment: ● Develop and maintain automated tests (unit, integration, and end-to-end) to ensure the reliability and stability of backend services.&nbsp; ● Manage the continuous integration and deployment (CI/CD) pipelines to streamline the deployment process.&nbsp; ● Monitor and troubleshoot production issues, ensuring timely resolution and minimal impact on users. Documentation and Support:&nbsp; ● Create clear and comprehensive documentation for backend code, including API documentation, system architecture diagrams, and operational guidelines.&nbsp; ● Provide technical support and assistance to internal teams and clients, troubleshooting issues and providing solutions to ensure the successful implementation and deployment of web applications.&nbsp; Qualifications:&nbsp; ● Expertise in back-end web development, software development, and programming&nbsp; ● Experience with Ruby on Rails&nbsp; ● Knowledge of object-oriented programming (OOP)&nbsp; ● Solid understanding of back-end development principles ● Experience in building scalable web applications&nbsp; ● Experience with REST APIs&nbsp; ● Experience in relational databases (e.g., PostgreSQL, MySQL)&nbsp; ● Experience with cloud infrastructure (AWS, GCP, Azure)&nbsp; ● Experience with software development best practices, such as version control (Git), automated testing, and continuous integration/continuous deployment (CI/CD)&nbsp; ● Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field&nbsp; ● Excellent written and verbal communication skills&nbsp; ● Ability to work independently and remotely&nbsp;

Senior Backend Engineer (Ruby on Rails)

Datamatics Technologies

<div>
 
 Job Description &ndash; Software Engineer (Front-End) &ndash; Islamabad Candidates Only
 
 
 
 Job Title:
 
 Software Engineer
 
 
 Division:
 
 Web Development
 
 
 Department:
 
 Product Engineering
 
 
 Location:
 
 
 Islamabad (On-site)
 
 
 
 
 Note: Kindly Read the JD carefully before applying.
 
 
 
 
 
 Position Summary
 
 
 We are looking for a talented and motivated
 
 Front-End Web Developer
 
 based in
 
 Islamabad
 
 who is passionate about transforming UI/UX designs into seamless, responsive, and visually appealing user interfaces. The ideal candidate will work closely with UI/UX designers and backend teams to ensure exceptional user experiences through high-quality code and smooth functionality. This role requires a strong understanding of modern front-end technologies, aesthetics, and performance optimization.
 
 
 
 Duties and Responsibilities
 
 <ul>
 <li>
 
 Convert UI/UX wireframes and prototypes into responsive, pixel-perfect front-end code.
 
 </li>
 <li>
 
 Collaborate with designers to develop intuitive, interactive, and user-friendly web interfaces.
 
 </li>
 <li>
 
 Optimize front-end performance for maximum speed, responsiveness, and cross-browser compatibility.
 
 </li>
 <li>
 
 Work closely with backend developers to integrate APIs and ensure smooth, end-to-end functionality.
 
 </li>
 <li>
 
 Write clean, maintainable, testable, and efficient code following best engineering practices.
 
 </li>
 <li>
 
 Ensure that all implemented designs meet defined specifications and product guidelines.
 
 </li>
 <li>
 
 Contribute to all phases of the software development lifecycle.
 
 </li>
 <li>
 
 Stay updated with the latest front-end development trends, tools, and best practices.
 
 </li>
 <li>
 
 Demonstrate Behaviors &mdash;
 
 Be Respectful, Keep Promises, Always Explore, Create Together
 
 &mdash; in day-to-day work.
 
 </li>
 <li>
 
 Proactively manage compliance risks inherent in day-to-day processes, ensuring systems and procedures meet regulatory and security requirements.
 
 </li>
 </ul>
 
 Knowledge and Experience
 
 
 
 Education:
 
 <ul>
 <li>
 
 Bachelor&rsquo;s degree in Computer Science or Software Engineering.
 
 </li>
 </ul>
 
 Experience:
 
 <ul>
 <li>
 
 
 3&ndash;5&nbsp;years
 
 of professional experience in
 
 front-end and web development
 
 .
 
 
 </li>
 </ul>
 
 Behavioral Skills &amp; Competencies:
 
 <ul>
 <li>
 
 Strong proficiency in
 
 HTML, CSS, JavaScript
 
 , and modern frameworks (React, Vue, Next.js, or Angular).
 
 </li>
 <li>
 
 Solid understanding of responsive design, UI/UX principles, and mobile-first development.
 
 </li>
 <li>
 
 Familiarity with
 
 Git
 
 and version control workflows.
 
 </li>
 <li>
 
 Strong communication and teamwork skills.
 
 </li>
 <li>
 
 Detail-oriented with excellent problem-solving abilities.
 
 </li>
 <li>
 
 Strong analytical mindset and the ability to manage multiple tasks efficiently.
 
 </li>
 </ul>
</div>

Software Engineer - Front-End

Devsinc

<div>
 Devsinc is looking for a
 
 Senior Software Engineer (MERN Full Stack)
 
 who is passionate about building scalable web applications, writing clean and efficient code, and mentoring junior developers. The ideal candidate should have a deep understanding of both front-end and back-end technologies within the
 
 MERN stack (MongoDB, Express.js, React.js, Node.js)
 
 and a strong grasp of software engineering best practices.
 
 
 
 Responsibilities:
 
 
 
 <ul>
 <li>
 Design, develop, and maintain end-to-end web applications using the MERN stack
 </li>
 <li>
 Build reusable components and front-end libraries for future use
 </li>
 <li>
 Develop RESTful APIs and integrate third-party services
 </li>
 <li>
 Ensure performance, quality, and responsiveness of applications
 </li>
 <li>
 Collaborate with cross-functional teams including product managers, UI/UX designers, and QA engineers
 </li>
 <li>
 Write clean, maintainable, and testable code following modern design principles
 </li>
 <li>
 Conduct code reviews and mentor junior engineers
 </li>
 <li>
 Troubleshoot, debug, and upgrade existing systems
 </li>
 <li>
 Participate in architectural discussions and contribute to technical decision-making
 </li>
 <li>
 Stay up to date with the latest trends in JavaScript, frameworks, and best practices
 
 
 </li>
 </ul>
 
 Requirements
 
 
 
 <ul>
 <li>
 Bachelor's degree in Computer Science, Software Engineering, or a related field
 </li>
 <li>
 3+ years of experience in full-stack web development with the MERN stack
 </li>
 <li>
 Strong proficiency in React.js (Hooks, Context API, Redux) and Node.js/Express.js
 </li>
 <li>
 Expertise in MongoDB (aggregation, indexing, data modeling)
 </li>
 <li>
 Hands-on experience with RESTful APIs, WebSockets, and microservices
 </li>
 <li>
 Experience with TypeScript (optional but preferred)
 </li>
 <li>
 Solid understanding of version control (Git) and deployment pipelines (CI/CD)
 </li>
 <li>
 Familiarity with Docker, AWS, or other cloud environments is a plus
 </li>
 <li>
 Strong problem-solving and analytical skills
 </li>
 <li>
 Excellent communication and teamwork abilities
 
 
 </li>
 </ul>
 
 Benefits
 
 
 
 <ul>
 <li>
 Provident Fund
 </li>
 <li>
 Medical Inpatient Facility
 </li>
 <li>
 Medical Outpatient Facility
 </li>
 <li>
 In-house Subsidized Lunch &amp; Dinner
 </li>
 <li>
 Gym Facility
 </li>
 <li>
 Entertaining Activities
 </li>
 <li>
 Sports Allowance
 </li>
 </ul>
</div>

Senior Software Engineer - MERN

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