Find Jobs Find Talent
Sr. Staff Software Engineer
Denver, Colorado  |  Remote
Contract Position
It appears that you have already applied to this job.
Applied on December 6, 2022
Job Id #58092 Posted August 3, 2022

Remote in US
A renewable energy revolution is beginning to blossom into the world’s largest industrial transformation since the personal computer.  The aging and the vulnerable electrical grid is rapidly being supplemented and replaced by rooftop solar and rechargeable batteries.  That evolution is about to explode as drivers flock to EVs and fuel those cars with electricity from home, leaving gas stations a relic of the past and spiking demand for sustainable, reliable, and affordable electricity.  We are in the driver’s seat to lead this energy revolution as America’s leading residential solar and renewable energy provider and is leading the change through modernizing and re-imagining the future of home electrification. We are looking for skilled individuals to help us drive this transformation with an entrepreneurial and customer-first spirit helping cement our company as the leader of the revolution.



As a Senior/Staff Software Engineer, you will be responsible for helping deliver value to business around the functions of products and pricing. Much progress has been made on the pricing side in terms of replacing aging infrastructure, and you’ll drive the transition to a more scalable and maintainable system. Your vision and contribution will help scale company infrastructure to a Fortune 500 company.


Ethos we admire are build it once, and build it well. Solve for maintenance, as that’s where 80% of the overall cost of a project is.



  • This position will be on one of several teams that build our company software.
  • You will be responsible for:
    • Embodying companies corporate values of human centricity, integrity, curiosity, passion, courage and impact.
    • Promoting high quality communication and collaboration on our cross functional team.
    • Building a deep and nuanced understanding of the residential solar domain and how our company business model is differentiated in the industry.
    • Designing and writing software optimized for readability, maintainability and testability.
    • Provide estimates, and take ownership of estimates.
    • Communicate as early as possible when deadlines are at risk.
    • Be pragmatic. Generally do the right work, but sometimes we may need to do the right now work. Provide the tradeoffs to stakeholders.
    • Applying a systems thinking mindset to your work.
    • Maintaining operational stability of software systems from development through to production.


Technical Skills Needed

Candidates are expected to be able to apply the following skills on day 1, and thus should have strong applicable experience:

  • Break down a complex problem into smaller chunks and execute
  • Experience developing complex, distributed, software systems in Java or Kotlin
  • Experience with docker, serverless and/or containerized cloud infrastructure.
  • Experience with API architecture and development.
  • Designing and implementing transactional data models (relational or document store)
  • Applying the practices of continuous integration and continuous delivery.
  • Git, maintaining deployment pipelines that work with infrastructure as code tools, in particular Github Actions and CDK.
  • Build performant, testable, scalable code with appropriate observability.
  • Driving the development process with test automation at appropriate levels (unit, outside in, integration).
  • Applying high quality security practices.

?Bonus Technical Skills

Candidates will not need to apply these skills on day 1, but they may need to learn them over time. Practical knowledge and experience in the following areas is a bonus:

  • Experience building native lambdas with GraalVM
  • Rules Engine like Kogito or Drools
  • Experience with API Tooling such as Swagger / OpenAPI
  • Experience in sunsetting / migrating large legacy applications to modern stacks

Horizontal facilitates valuable and productive conversations between you and potential employers. We can assist you in growing your career by partnering you with employers that offer challenging assignments. For those that join the team, we offer competitive compensation and benefits including medical, dental, vision, and retirement. Check out all we have to offer and how you can become part of the Horizontal Talent Team. In compliance in compliance with state laws and regulations related to job posting requirements, the salary range for this role is $15.00 -$115.00 per hour (hourly rates in other locations could differ). This is not a guarantee of compensation, as final offer amount may vary based on factors including but not limited to experience and geographic location.

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.


What is your gender?

What is your ethnicity?

What is your Veteran / U.S. Military Status?

Do you identify with one or more of the classifications of protected veterans below?

If yes, please indicate by checking the appropriate box below

Do you have a disability?

You are considered to have a disability if you have a physical or mental impairment or medical condition that substantially limits a major life activity, or if you have a history or record of such an impairment or medical condition.

Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


You have saved your first job! To see all your Saved Jobs, click here. Or continue scrolling through jobs and bookmark openings that catch your eye and apply for those jobs later.

Return to Job Search

We’re sorry!

There are currently no open positions in your location or accepting applications from out of the country

Return to Home
Cookies help us improve your website experience.
By using our website, you agree to our use of cookies.