Full-Stack Developer

| Marina Del Rey & Playa Vista
Please email your resume and (optional) cover letter to [email protected] w/ "Built In - Full-Stack Developer" in the subject line.
Apply now

The Job

We’re seeking a talented Full-Stack Developer to join our tech-focused interactive agency.

We work with some of biggest brands in the world on some of their most interesting and prominent projects. These run the gamut from quick-turn interactive apps and games to major corporate websites to large-scale platforms. Developers are well-supported while having a large degree of autonomy in approach and implementation, which helps us all stay hip and learn collectively. And unlike a lot of agencies, we’re largely tech-driven; devs always have a seat at the table and help steer all parts of the process.

We don't like to pigeonhole people with something as narrow as "Ruby", but this role does require some familiarity with Ruby on Rails. If you're coming from another backend framework, that's OK - if you're willing to put some work into learning Rails, but most of your experience is in Node.js, let's talk about it!

Mostly, you'll need a solid general understand of how the internet works. You should be able to help guide architectural decisions, solve client needs, and mentor and assist other developers.

About You

As a full-stack developer, you'll coordinate closely with the production, creative and strategy teams to help ensure we're building things smartly. You'll contribute to architectural decisions, and lead on implementation. A good fit would be a developer who can execute quickly while still following best-practices and who thrives on new tech and fast-paced agency work.

  • Your Backend fundamentals should be very strong. You should know a web framework really well, and be comfortable learning new technology.
  • You might now know Rails well, including its shortcomings and how to deal with them. You may also be very familiar with Node.js
  • You’re down to integrate with the team on larger team projects but you can own and architect end-to-end solutions for smaller, fast-turnaround projects.
  • Your cleanly-designed, well-documented APIs and pages earn you the admiration not only of frontend and mobile developers but of caching layers and CDNs.
  • You’re familiar with modular design, dependency injection, functional isolation, and have strategies for testing all layers of the stack.
  • You're familiar with best-practices, but are not doctrinaire.
  • You can design SQL schemas, index properly, and know how to code, diagnose and optimize SQL queries. You reflexively translate business problems into entities and tables and constraints.
  • Handling things in serial isn’t always going to fly, so you have experience with task queues and various concurrency strategies.
  • Everything we build has some user-facing component, and while we’ve got people for that, your Javascript & frontend should be decent and you should be up with the space (React, Webpack, CSS3 and equivalents.)
  • Knowledge of (or interest in!) devops stuff is a big plus. We use AWS, Heroku, Terraform, Ansible, etc.
  • You should enjoy mentoring and supporting the other members of our development team.
  • We’re all pleasant, smart, communicative people, and you should be too!

About Us

HYFN’s projects are varied, engaging, and highly visible. Our office is located in Playa Vista, right across the street from Whole Foods. HYFN matches its social environment with competitive salary, health and benefits packages.

We’re a team of smart, curious and friendly developers with a large knowledge base from backend to frontend systems and expertise in a wide variety of platforms. We work on projects where we often are asked to build cutting-edge interactive user experiences and determine not only the tools we’re using, but also how we go about using those technologies to solve application and architectural problems.

We talk, aid and network with each other to determine how to solve problems and create awesome apps we are proud to call our own. We have the interesting work and well-grounded business model of an agency. And unlike some agencies we’re tech-focused and our technological expertise informs decision making at all levels. You will not be a cog or a code monkey.

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Please email your resume and (optional) cover letter to [email protected] w/ "Built In - Full-Stack Developer" in the subject line.
Apply now
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Technology we use

  • Engineering
  • Product
  • Sales & Marketing
    • JavascriptLanguages
    • RubyLanguages
    • SqlLanguages
    • D3JSLibraries
    • FluxLibraries
    • jQueryLibraries
    • ReactLibraries
    • ReduxLibraries
    • Twitter BootstrapLibraries
    • Three.jsLibraries
    • Backbone.jsFrameworks
    • Ember.jsFrameworks
    • HadoopFrameworks
    • Node.jsFrameworks
    • Ruby on RailsFrameworks
    • MemcachedDatabases
    • MySQLDatabases
    • PostgreSQLDatabases
    • RedisDatabases
    • Google AnalyticsAnalytics
    • MixpanelAnalytics
    • IllustratorDesign
    • PhotoshopDesign
    • SketchDesign
    • AsanaManagement
    • ConfluenceManagement
    • JIRAManagement
    • SmartsheetManagement
    • WrikeManagement
    • HubSpotCMS
    • HubSpotCRM
    • MailChimpEmail
    • SendGridEmail
    • HubSpotLead Gen


Located in Playa Jefferson Campus across the street from Whole Foods Market and Runway Mall - campus environment with shared communal space.

An Insider's view of HYFN

What are some social events your company does?

HYFN frequently puts on company-wide events like Octoberfest celebrations, Beach days, Office Olympic Games, and even Mario Kart Competitions. There is no shortage of rewards for hard work here, and employees across teams are given the opportunities to enjoy one another's company outside of just a working environment, and even compete for prizes!

Samantha Tisher

Account Coordinator

How do you empower your team to be more creative?

At HYFN, we produce creative that engages and connects with people. We gladly challenge ourselves to showcase our client's offerings in a way that resonates with audiences. Ideas are great, and we love them. But we also know that in the ever-evolving digital world, being able to pivot and shift our ideas is just as important.

Xionel Lopez

Social Creative Director

How does your team reward individual success?

Our team has a No Error Rewards Program for error free publishing. Monthly rewards range from catered team lunches and gift cards, to free day passes, and get better the longer you go with no errors. One full year of no errors means a trip to Disneyland!

Vrushali Kumathe

Associate Media Buyer

What are HYFN Perks + Benefits

HYFN Benefits Overview

While professional relationships are important, we all know it’s more fun to work with friends. Especially when the kitchen’s fully stocked and there’s a dog ready to greet you around every corner. We take ping pong more seriously than most and have been known to dabble in karaoke from time to time.

Friends outside of work
Eat lunch together
Daily stand up
Open door policy
Team owned deliverables
Team based strategic planning
Group brainstorming sessions
Open office floor plan
Health Insurance & Wellness Benefits
Flexible Spending Account (FSA)
Employees can contribute pre-tax dollars up to a maximum of $2,500 for medical expenses and $5,000 for dependent care expenses.
Disability Insurance
Employees can increase their benefit eligibility amount for STD to 60% of salary or wages up to a maximum of $1,500 per week after a 14-day waiting period. STD coverage covers a 24-week period.
Dental Benefits
UMR Dental plan to all eligible employees. Premiums for employee only coverage are $6.30 per pay period. Premiums for family coverage are $14.75 per pay period.
Vision Benefits
Spectera Basic Vision plan to all eligible employees. Premiums for employee only coverage are $4.50 per pay period. Premiums for family coverage are $12.00 per pay period.
Health Insurance Benefits
Traditional PPO and High Deductible PPO. High Deductible PPO plan allows employees to open up a HSA - contribute $3,400 (ee only) or $6,750 (family).
Life Insurance
Every employee has a Guardian Basic Life/AD&D Plan in the amount of 150% of annual base salary. Employer covers 100% of premium.
Wellness Programs
On-site Yoga, Boot camp and other activities.
Retirement & Stock Options Benefits
Traditional and Roth plans.
401(K) Matching
The company matches up to 50% of the first 6% for each plan. There is a 5 year vesting schedule on company matching funds.
Performance Bonus
Child Care & Parental Leave Benefits
Flexible Work Schedule
Family Medical Leave
Vacation & Time Off Benefits
Generous PTO
Paid Holidays
Paid Sick Days
10 per calendar year (pro-rated first year of employment)
Perks & Discounts
Beer on Tap
As well as kombucha and cold brew coffee provided by Joyride.
Casual Dress
Company Outings
Game Room
Stocked Kitchen
Some Meals Provided
Happy Hours
Pet Friendly
Professional Development Benefits
Job Training & Conferences
Cross functional training encouraged
Promote from within
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Project Mgmt
Marina Del Rey & Playa Vista
Marina Del Rey & Playa Vista
Please email your resume and (optional) cover letter to [email protected] w/ "Built In - Full-Stack Developer" in the subject line.
Apply now
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