
Senior Software Engineer, Frontend
https://www.alivecor.com/">AliveCor, the pioneer of the smartphone EKG, with millions of EKGs from a large and growing user base, seeks a Senior Software Engineer (Front-end Applications) to contribute to the Applications team. You will be an integral member of our engineering team, responsible for developing industry-leading web applications that transform the healthcare industry and affect the way consumers use, engage, and act on their health data.
- Passionate about User Experience.
- Has great verbal and written communication skills to engage directly with your peers.
- Understands and is thoughtful about engineering trade-offs
- Experience building web applications with cross-browser support and RESTful API integrations
- Commitment to delivering results.
- Passionate about continuous improvement.
- B.E in Computer Science or a related discipline, or related practical experience.
- 5-8 years of Frontend development experience with at least 2 years working as a React.js Developer.
- A strong grasp of software engineering and web application development fundamentals, including JavaScript (ES5, ES6), HTML and CSS.
- Aptitude to learn new technologies (e.g. ES.Next).
- Excellent troubleshooting skills.
- Familiarity with RESTful APIs to connect the Front-end applications to backend service
- Bonus points for:
- Publicly available web applications, portfolios, or examples available on a source repository (e.g. GitHub, GitLab, Bitbucket)
- An interest in data visualizations using JavaScript libraries such as D3, Highcharts, and others
- Experience managing front end tooling (e.g. gulp, grunt, webpack, post-CSS, service workers)
- Experience with performance analysis and tuning of web application
- Experience developing back end server APIs and/or server-side rendering
AliveCor is on a mission to define modern healthcare through data, design and disruption. We’ve pioneered the creation of FDA-cleared machine-learning techniques, transformed wearable medtech to put proactive heart care at everyone’s fingertips. Kardia is the most clinically validated mobile EKG technology. AliveCor was named as one of the Top 10 Most Innovative Companies in Health for 2017 by Fast Company as part of the publication’s annual ranking of the world’s Most Innovative Companies. AliveCor was awarded the 2015 Tech Pioneer by the World Economic Forum and one of the 50 Smartest Companies in 2015 by the MIT Technology Review. AliveCor recently announced a collaboration with Mayo Clinic that will result in new machine learning capabilities to unlock previously hidden health indicators in EKG data, potentially improving heart health as well as overall health care for a variety of conditions. AliveCor is a privately held company headquartered in Mountain View, CA.
AliveCor is an equal opportunity employer and will not discriminate against any employee or applicant on the basis of age, colour, disability, gender, national origin, race, religion, sexual orientation, or any other classification protected by federal, state, or local law.
Watch the following video demonstrating our product.
https://www.youtube.com/watch?v=8I9xosgA-Ig">KardiaMobile: How's your heart?
https://www.youtube.com/watch?v=8I9xosgA-Ig

About AliveCor
About
AliveCor is on a mission to define modern healthcare through data, design and disruption. We’ve pioneered the creation of FDA-cleared machine-learning techniques, transformed wearable medtech to put proactive heart care at everyone’s fingertips. Kardia is the most clinically validated mobile EKG technology. AliveCor was named as one of the Top 10 Most Innovative Companies in Health for 2017 by Fast Company as part of the publication’s annual ranking of the world’s Most Innovative Companies. AliveCor was awarded the 2015 Tech Pioneer by the World Economic Forum and one of the 50 Smartest Companies in 2015 by the MIT Technology Review. AliveCor recently announced a collaboration with Mayo Clinic that will result in new machine learning capabilities to unlock previously hidden health indicators in EKG data, potentially improving heart health as well as overall health care for a variety of conditions. AliveCor is a privately held company headquartered in Mountain View, CA.
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What is the role?
We are looking for highly skilled candidates with experience in frontend programming and are comfortable in dealing with backend tools.
Key Responsibilities
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly-responsive user interface components using React concepts.
- Writing application interface codes using JavaScript following ReactJS workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
What are we looking for?
An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.
- 6 to 9 years of strong design and development experience in building massively large-scale distributed internet systems and products.
- Previous experience working as a React.js Developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Strong experience using a client side MVC framework such as NodeJS, ReactJS, or Redux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Experience in responsive design, cross browser compatibility, and website performance.
- Knowledge of frontend CSS frameworks like Bootstrap, Material UI, and preprocessors like SASS and LESS.
- Experience with handling Services, RESTful, APIs (NodeJS preferably).
Who will you work with?
You will be working with top-quality engineers who have built one of the best employee engagement SaaS platforms. You will be reporting to the Engineering Head and working closely with the Architect and other leads.
What can you look for?
A wholesome opportunity in a fast-paced environment that will enable you to juggle between concepts, yet maintain the quality of content, interact, and share your ideas and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Xoxoday.
We are
Xoxoday is a rapidly growing fintech SaaS firm that propels business growth while focusing on human motivation. Backed by Giift and Apis Partners Growth Fund II, Xoxoday offers a suite of three products - Plum, Empuls, and Compass. Xoxoday works with more than 2000 clients across 10+ countries and over 2.5 million users. Headquartered in Bengaluru, Xoxoday is a 300+ strong team with four global offices in San Francisco, Dublin, Singapore, New Delhi.
Way forward
We look forward to connecting with you. As you may take time to review this opportunity, we will wait for a reasonable time of around 3-5 days before we screen the collected applications and start lining up job discussions with the hiring manager. We however assure you that we will attempt to maintain a reasonable time window for successfully closing this requirement. The candidates will be kept informed and updated on the feedback and application status.

Core responsibilities
• Collaborate with product teams to more accurately define new features
• Collaborate with UX in the building of a design system/component library
• Ensure high performance of all systems developed
• Aware of the relationship between development and business with a strong sense of ownership
• Employ the latest techniques such as agile software development
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Javascript/Angular
• Strong interpersonal, communication and analytical skills
• Should have the ability to express their design ideas and thoughts
Job Brief
• JavaScript and angular expertise
• Experience with libraries such as bootstrap, Ag-grid, formly, observables, and ngrx
• You enjoy working with new technologies, and are curious and energetic
• Experience working with REST APIs
• Good understanding about authentication and security
• Create and maintain various unit and integration tests
• You enjoy working in a creative and agile environment that moves fast
• Ability and interest in providing mentorship to junior members of the team
• Write high quality code and Conduct code reviews
• Being resourceful and detail-oriented, along with being an outside the box thinker!
• Experience being a great team player, who work collaborative, and brings a positive attitude
Software Engineering
- 4+ years of experience in designing, developing, and maintaining React-based applications
- 4+ years of hands-on experience in developing medium to large-scale applications using Javascript frameworks
- Experience with projects that involve, improving the reliability and performance of your web-apps, by leveraging different observability tools like Lighthouse, Sentry, and Datadog.
- Good understanding of functional programming paradigms and UI architecture patterns
- A decent understanding of cloud infrastructure like AWS to orchestrate and manage our applications.
- Experience with testing frameworks like JEST, modern auth mechanisms, and server-side rendering through frameworks like NextJS
- Experience with backend technologies like JAVA, and Kotlin would be good to have.
Product Development
- Ability to scope, review and refine user stories for technical completeness and to resolve dependency risks.
- Well-versed in working in an agile environment and being involved in different stages of SDLC - Design, Development, Code Review, Testing, and Release Management
- Ability to work with different CI/CD frameworks, with hands-on experience with Git or any similar source code management tools
- Continuously refactor applications so that they are easy to maintain, easy to extend, and contribute to
Your Tech Stack
Web Application Frameworks: React, Ruby on Rails
Programming Languages: ReasonML/Rescript, Typescript, Javascript, Kotlin, HTML, CSS
Tools and Libraries: Webpack, Sentry, NextJS, NodeJS, Jest, Figma
Communication: HTTP, GraphQL, Amazon SQS, Amazon SNS
Observability: Google Analytics, Lighthouse, Sentry, Kibana, Datadog
What you will build with us?
The front-end platform at Porter is geared toward developing a variety of products for customers, partners, and our internal teams. You will be a part of Porter’s Web Engineering Platform team.
What will be your primary focus?
- enabling our engineering teams to create highly reliable and scalable software systems, reduce client and server outages and increase system hygiene.
- building the right set of tooling and flows for our web and mobile teams, for improving developer productivity. This will enable our application teams to churn out user features rapidly and will help them build the best-in-class product solutions for our business teams.
- work on security initiatives, to protect information and information systems from unauthorized access, use, disclosure, disruption, modification, or destruction in order to provide confidentiality, integrity, and availability.
What will you closely influence?
- Providing the right user experience to our customers, partners, and cc agents when they reach out to us
- Building tools to help boost user growth on our platform including our driver onboarding, training and certification system, referral system, and lead management models. A step towards sustainable user growth and providing personalized experiences, on our platform
- Unlocking new growth levels for Porter, in form of our new vibrant customer base through business initiatives like Packers and Movers, Part-Load, and help Porter on its journey to becoming a super Logistic App.
- Enabling us to engage our partner ecosystem better with our fast-moving initiatives in the Insurance and Lending segments. Your work here will directly impact the livelihood of our partners
- Solving problems related to optimal pricepoint for partners and customers, matchmaking with supply and demand, and building confidence around payment experience and location tracking.

We are looking for a good JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
Responsibilities
- Developing new user-facing features using React.js
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high-quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills:
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows (Redux)
- Familiarity with newer specifications of ECMAScript
- Experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial)

● Develop new user-facing features
● Build reusable code and libraries for future use
● Ensure the technical feasibility of UI/UX designs
● Optimize application for maximum speed and scalability
● Assure that all user input is validated before submitting to back-end
● Collaborate with other team members and stakeholders
Requirements
● Practical experience in building web pages in HTML/CSS on PHP
● Practical experience with jQuery for functional side of javascript
● Need to understand how to interlace PHP code with HTML code with loops, etc.
● Understanding of how to write modular code for different HTML snippets in PHP
● Experience with Bootstrap is a plus
● Good knowledge of working with Git is required

As a member of the founding engineering team at Kombai, you'd work directly with the CTO and CEO to build a global product for the frontend dev teams from scratch. Together, we'd have a crack at several hard, high-impact problems - often involving challenges across product, engineering, and research areas.
Note: Unlike most organizations, the frontend developers at Kombai will not work primarily on the frontend of the product. Instead, they will work on developing the core product, which is for the frontend devs like themselves. That's why we are naming the roles as "product engineers", instead of the usual software developer/engineer nomenclature.
Desired Qualifications & Skillset
For all positions of our early engineering team we are looking for people who:
- Are fully hands-on with latest JS development
- Are good frontend and web application architects
- Are quick and agile
- Have a good learning, problem solving and logical aptitude
- Have a mindset to commit for 3-4 years
In addition to the above, the candidates for Senior Product Engineer should also have:
- Thorough understanding of good Frontend engineering & architecture practices. In our experience, this usually comes from working in an excellent frontend team with an excellent architect, on a complex applications
- Experience: 3-6 years


1. Work with the founders to ship new features that solve our customers' needs
2. Work on building, maintaining, and testing the front-end of the web application
3. Work on taking architectural and design decisions
4. Work on reviewing and approving pull requests
5. Proactively identify and fix any software bugs/improvements
6. Take the initiative to improve the system's software architecture, UI, UX, scalability, and performance
7. Participate in the customer meetings for solution design and technical discussions
8. Help in customer support activities by resolving any technical queries/issues reported by the customer
1. 1+ years of experience in Vue.js
2. Proficiency with front-end languages HTML/CSS/JavaScript and multiple libraries
3. Prior experience with building and maintaining design systems
4. Familiarity with tools like Figma and experience turning Figma designs into top-class UI
5. Knowledge of REST APIs
6. Bonus points for startup experience & experience in UI/UX design
● Work with your team to improve our conversion rates by coding out variations for A/B
testing
● Build better user experiences
● Rigorously educate yourself with the latest development techniques and best practices
● Proactively anticipate issues and develop solutions
● Clearly communicate solutions to team members both verbally and in writing
documentation
● Implement new digital technologies or development techniques that help to meet business objectives
What You Bring to the Table
● 1+ years of front-end development experience
● Experience with responsive web design and the ability to deliver outstanding functionality to the range of client devices from desktops and laptops to mobile platforms
● Familiarity with at least one JavaScript framework (MVW) and know when to do without
one when necessary.
● Understanding of HTTP and how clients interact with a web server.
● Solid understanding of best practices. You read the YDKJS books.
● Capable of coding in ES5 and ES6 and understand the difference between them
● Up-to-date on HTML5 and CSS3 features
● Passionate about supporting all browsers, including IE8 and IE11+
● Practical experience in design techniques for web UI applications
● Demonstrated ability to roll up sleeves to develop and implement new features and
functionality
● Possess an excellent understanding of creative tools in order to develop leading-edge
web pages with interesting and innovative client-side capabilities
● Be independently driven and resourceful to deliver results with minimal direction
● Have an entrepreneurial spirit with a drive to contribute new ideas for future development
● Have the ability to work with UX and technical teams to get things done
● Have the ability to handle multiple, competing priorities in a fast-paced environment
● Have excellent verbal and written communication skills
Pluses
● Experience working in an agile development environment
Super Pluses
● You know how to polyfill features that aren't cross-browser friendly.
● You understand the same-origin policy and cross-origin resource sharing.
● You understand prototypal inheritance vs classical inheritance.

The Role
We are looking for full-stack developers with experience in building user interface components for serverless applications using React.
The role involves working with the product management team, understand the business requirements, and take full responsibility of design, development, test and release of the applications.
Requirements:
- Passion for building and delivering great software with a strong sense of ownership.
- 2+ years of experience in building web applications using React with strong CSS skills.
- Independently develop new user-facing features from designs and wireframes
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- Experience with popular React.js workflows (such as Flux or Redux)
- Building reusable components and front-end libraries for future use
Good to have:
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Knowledge of AWS platform and scalable application architecture
- Experience with Build and Release, Agile processes and Estimation/Planning
- Knowledge of CSS pre-processors like SCSS and LESS

