Sr. Application Developer - IT Architecture at Zayo

| Greater Boulder Area
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Company Description

Zayo provides mission-critical bandwidth to the world’s most impactful companies, fueling the innovations that are transforming our society. Zayo’s 133,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo’s communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, dedicated Internet access, and colocation services. Zayo owns and operates a Tier 1 IP Backbone and 44 carrier-neutral data centers. Through its Cloudlink service, Zayo provides low latency private connectivity that attaches enterprises to their public cloud environments. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises.

Position Description

We’re looking for a talented individual to join us on our quest to take Zayo’s systems to the next level in architecture and cloud computing with a focus on repeatable automation. Using your technical knowledge and experience you will be helping to design and implement application stack templates and shared infrastructure resources as we fully embrace the AWS cloud. In addition, as part of the Architecture team, you will provide sound technical solutions to business problems and assist in interfacing with and providing integrations to other applications across the company. As a technical leader, you will be researching and identifying system issues and providing solutions for them.  


  • Bachelor’s degree or Master’s degree in Computer Science, technical trade school, or equivalent experience in a programming or analytical discipline.

  • Adaptable, good communication skills and a company and team first approach are required to be successful in our evolving and highly collaborative environment.

  • Problem solver, with an eye to the bigger picture and an awareness to make decisions with the best interest of Zayo in mind, ultimately taking ownership and responsibility for actions and outcomes.

  • 5-7 years of experience may indicate readiness, but must demonstrate preceding role proficiency and a high degree of competency in the following areas. 



  • Research and provide technical solutions to business problems

  • Peer review code for correctness and use of best practices

  • Design and implement highly scalable, maintainable solutions

  • Assist in deployment and maintenance of new and existing systems

  • Mentor junior developers

  • Be a technical knowledge resource

  • Support the design phase of larger, more complex projects using established tools and processes.

  • Develop new back-end components and microservices in Node.js.

  • Writing secure, reusable and efficient code covered by unit and integration tests.

  • Optimizing system components for maximum performance to produce low-latency and highly-available APIs.

  • Integration of data storage solutions including in-memory and relational databases.

  • Be a team player that likes to have fun



  • Experience using and coding to design patterns within client/server frameworks, multi-tier applications, or distributed computing environments.

  • Experience with larger scale system design and system integration strategies; including more modern publish/subscribe models using choreography and orchestration.

  • Strong proficiency in JavaScript, Node.js, asynchronous programming, ES6 specifications, and test driven development using libraries like Mocha and Chai.

  • AWS experience, particularly with CloudFormation, CDK, API Gateway, and Lambda.

  • Salesforce experience, particularly around integration strategies.

  • Proficiency with RESTful APIs.

  • Ability to understand business requirements and translate them into technical requirements.

  • A knack for benchmarking and optimization, including SQL query tuning.

  • Understanding of popular web frameworks (React.js, Angular, ...)

  • Familiarity with newer specifications of ES5/ES6

  • Knowledge of modern authorization mechanisms, such as JSON Web Token, oAuth2

  • Familiarity with code versioning tools Git, SVN, and Mercurial

  • General understanding of RDBMS queries and design

  • General understanding of routine maintenance, recovery, and handling failover of a database

  • Big plus if you have DBA experience/knowledge

  • The ideal candidate should be self-motivated, have a strong attention to detail, and possess a passion for delivering a high quality product for stakeholders. 



  • Competitive compensation

  • Excellent benefits including health, dental, vision, 401 (k), disability and life insurance

  • Fitness membership discounts

  • Generous paid time off policy including paid parental leave

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Technology we use

  • Engineering
  • Sales & Marketing
    • JavaLanguages
    • JavascriptLanguages
    • PythonLanguages
    • RubyLanguages
    • SqlLanguages
    • ApexLanguages
    • ReactLibraries
    • ReduxLibraries
    • AngularJSFrameworks
    • Node.jsFrameworks
    • Ruby on RailsFrameworks
    • Microsoft SQL ServerDatabases
    • OracleDatabases
    • PostgreSQLDatabases
    • SalesforceCRM


Our Boulder campus is located in the 29th Street Mall where employees can benefit from access to restaurants, retail, fitness and more!

What are Zayo Perks + Benefits

Zayo Benefits Overview

Zayo Group is committed to providing our employees with a benefits program that is both comprehensive and competitive. Our benefits program offers health care, dental and vision coverage, as well as financial secruity to our employees and their families.

Volunteer in local community
Partners with Nonprofits
B Strong, Greenhouse Scholars, A Precious Child, AMP the Cause, There With Care, Boulder Parks and Rec, and many more....
Friends outside of work
Eat lunch together
Intracompany committees
Daily stand up
Open door policy
Team owned deliverables
Team based strategic planning
Group brainstorming sessions
Open office floor plan
Dedicated Diversity/Inclusion Staff
Highly diverse management team
Unconscious bias training
Diversity manifesto
Someone's primary function is managing the company’s diversity and inclusion initiatives
Mean gender pay gap below 10%
Health Insurance & Wellness Benefits
Flexible Spending Account (FSA)
Flexible Spending Accounts (FSAs) enable you to put aside money for important expenses & help reduce your income taxes at the same time. Zayo employees can contribute up to $2,650 annually.
Disability Insurance
If you are out of work for an extended period or time due to a disabling injury or illness, disability insurance covers 60% of annual salary up to $5000 monthly maximum payout.
Dental Benefits
Dental exams can help you & your dentist detect problems in the early stages when treatment is simpler & costs are lower. Regular exams are an important part of maintaining your medical health.
Vision Benefits
The vision plan covers routine eye exams and also pays for all or a portion of the costs of glasses or contact lenses if you need them.
Health Insurance Benefits
Each person's health care needs are different. That's why our medical plan offers multiple options (3) so that you can choose the coverage level best-suited to your personal situation.
Life Insurance
Your family depends on your income for a comfortable lifestyle and for the resources necessary to make their dreams a reality! Zayo offers Basic Term Life and AD&D as well as supplemental insurance.
Wellness Programs
Team workouts
Do you love working out? So do we which is why Zayo offers access to group fitness sessions and company-sponsored events, such as the B Strong Ride.
Retirement & Stock Options Benefits
Zayo Group offers a 401(k) plan through Fidelity. Eligible employees may join the plan as soon as administratively feasible after their date of hire and may contribute up to the IRS limit of $19,000.
401(K) Matching
Zayo matches 50% of employee contributions up to 4% with a cap at 2% match.
Company Equity
Performance Bonus
Child Care & Parental Leave Benefits
Generous Parental Leave
Zayo provide 12 weeks paid maternity leave, 2 weeks paid paternity leave, and 4 weeks paid adoptive/foster leave.
Flexible Work Schedule
Family Medical Leave
Adoption Assistance
Return-to-work program post parental leave
Company sponsored family events
Vacation & Time Off Benefits
Generous PTO
Zayo employees receive between 0 and 25 days per year of paid time off based on years of service.
Paid Holidays
Perks & Discounts
Beer on Tap
Casual Dress
Commuter Benefits
Zayo Group offers the option to elect Commuter Benefits which helps you pay for public transportation and parking costs while commuting to and from work using pretax dollars.
Company Outings
Game Room
Some Meals Provided
Happy Hours
Happy hours are hosted twice monthly and include alcoholic and non-alcoholic options.
Parking is available at Zayo offices.
Recreational Clubs
Love sports? So do we! We offer a variety of options to get involved with your co-workers outside of the office.
Fitness Subsidies
We strongly believe that there is nothing more important than the health and well-being of our employees and families. To promote health and fitness, Zayo has partnered with GymPass.
Professional Development Benefits
Job Training & Conferences
Tuition Reimbursement
The tuition reimbursement program provides an opportunity for Zayo employees to further their education and to apply to be reimbursed for eligible education expenses.
Diversity Program
Lunch and learns
Zayo is committed to providing opportunities for employees to expand and grow their knowledge base through lunch and learn sessions.
Cross functional training encouraged
Promote from within
Mentorship program
Continuing Education stipend
Time allotted for learning