JavaScript Developer

O3 World is seeking a JavaScript developer with a passion for building great tools and compelling experiences like the projects listed in the WORK section of our site. You’ll work with some of the brightest project managers, designers, and developers in the business to define, plan, build, and deliver exceptional websites and applications.

As a JavaScript developer you’ll be responsible for implementing the client-side architecture and logic of a web application, as well as integrating applications with external APIs and other backend services. Sometimes you’ll be supported by Front-End developers responsible for creating presentational styles and markup, and other times you’ll be tasked with doing theming yourself.

We’re looking for JavaScript developers who have a passion for learning, who sweat the details, and who are always up for a challenge. We’re looking for someone with a solid understanding of the fundamentals of JavaScript and the underlying technologies of the web who can easily pick up the frameworks and processes we’re working with now and in the future.

As a member of the O3 team, you will be involved in projects from the discovery phase all the way through to launch. You’ll have a say not only about what we build but how we build, and you’ll have the opportunity to contribute to our overall technology profile through research and development of new tools and technologies.

At O3, we’re constantly doing things we’ve never done before. Learning is not only encouraged, it’s required. We support your professional growth through conference attendance, training, and regular department meetings. We frequently host meetups and sponsor events. We have even been known to host our own conference.

Our culture is very collaborative but also provides a high degree of autonomy. Although we have lead developers and designers ready to lend a hand when things get tricky, you’ll have plenty of heads down time to get the work done the way you want to.

  • Solid understanding of JavaScript, including ES2015+ coding standards
  • Proficiency working with at least one Front-End JavaScript application framework such as Angular, React or similar
  • Experience working with RESTful APIs
  • Experience writing JavaScript unit and integration tests
  • Experience coding standards compliant HTML5, CSS3, Sass/Less and other related front end technologies
  • Digital agency experience preferred
  • Proven experience building responsive, mobile-first websites for major desktop and mobile browsers
  • Experience with version control systems such as Git
  • Ability to hand-code standards compliant markup and resolve browser compatibility errors
  • Understanding and respect for web standards, code validation, and accessibility; prior experience with site testing tools
  • Strong understanding of separation of layers: keeping content, functionality, and presentation separated
  • Knowledge of performance optimization techniques such as lazy asset loading, AJAX, caching, responsive images, CDNs, etc.
  • Hand-code standards compliant JavaScript, HTML, CSS, and to achieve a consistent presentation across all major desktop and mobile browsers
  • Accurately and efficiently build Front-End design systems based on wireframes and design comps built in Photoshop or similar
  • Contribute to project discovery, UX, and design meetings
  • Cross-browser, cross-device test and quality assure all front-end code
  • Update and maintain existing sites in development, staging and production environments
  • Amazing office space in Fishtown, flex vacation time, paid trips to national and regional industry events and conferences, paid training, speaking opportunities, company happy hours, casual office dress code, monthly one-to-one employee growth meetings, lunch and learns, sponsored networking events, employee referral program, company holidays and half-days, quiet rooms, annual holiday party, peer-to-peer recognition, annual non-profit participation, neighborhood outreach events, your own personal theme music, and more…
  • Medical coverage including vision and dental coverage, short and long term, life insurance plan, 401k with company match

O3 World specializes in digital product design and development, from conceptualization through implementation and support. We work with businesses as their strategic partner to provide long-term digital solutions through web, mobile, e-commerce and application development.

With offices in Fishtown, Philadelphia, we’ve emphasized a balanced approach to design, innovative technological solutions and an award-winning agency culture. This is the heart of one of the most vibrant and active areas within the city. You’ll have easy access to public transportation, a variety of delicious local eateries and coffee shops, entertainment venues like Johnny Brenda’s and The Fillmore, as well as fitness centers. Regardless of what your interests and curiosities might be, there is always something new and exciting to explore.

We’re continually looking to explore new horizons in the fields of user experience, design, and technology, we have a unique program called O3 Labs. Here, we embrace future thinking through experiences and experimentation with emerging technologies. All staff members are invited to collaborate internally to devise labs concepts that attempt to solve real experiences and business problems. You’ll have the opportunity to present a concept and, if chosen, company time, employees, and resources are dedicated to making your idea become a reality. O3 theme music is one example of several other successfully launched labs projects from O3 World. See it in action.

We’re proud to be the founder and host of Forge Conference, Philadelphia’s premier user experience and product design conference since 2014. Once a year we invite a national roster of experts in the field of user experience to share their wisdom, ideas, processes, and inspiring stories to people like you. Each employee at O3 World has the opportunity to join the Forge planning committee and contribute your thoughts and ideas to a conference that is quickly gaining prominence as an industry leading event. Learn more about Forge.

Finally, we’re firm believers in a balanced environment, where positivity, hard work and happy hours coexist. At O3, we strive to recruit and retain a diverse team that help us perform better, attract top talent and make smarter decisions. While much of our time is spent at our desks, at whiteboards, or in meetings, we’ve created a culture that makes the outside world an integral part of our daily working routines. The challenging, progressive work we do keeps us energized and exhilarated, while our culture and people keep us grounded, put things in perspective and make us better at what we do. Most of all, it makes us a team.

Please submit your resume and cover letter explaining why you’d be a good fit for this role and our team. Links to your LinkedIn, Twitter accounts, or anything else you feel will help us get to know you better are also appreciated.

O3 is an equal opportunity employer (EOE). We value diversity and are committed to creating an inclusive environment for all employees. We look forward to meeting with you.

Get in Touch
Apply To This Job
Want to work with us? Contact Us

Newsletter Signup

Got It