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Senior Platform Engineer

Engineering | Denver, CO | Full Time

Job Description

Maxwell | Sr Platform Engineers Backend | Denver, CO | ONSITE & REMOTE


Maxwell is on a mission to revolutionize the $8.5T residential mortgage industry by reimagining how homebuyers, real estate agents, and loan officers work together to buy a home. Our digital mortgage solution was created on the principle that mortgage companies will win by betting on the augmentation of human relationship, not by replacing it with faceless technology. Our software intelligently automates the mortgage origination workflow so the focus isn’t the paperwork, it’s the place to call home.

Founded in 2015 and based in beautiful Denver, Colorado, Maxwell is backed by leading venture capital firms and Techstars. Every day, Maxwell is used by hundreds of lenders across the U.S. to serve thousands of homebuyers. We work as a team and do whatever it takes to make each other and our customers successful. We also are proud to partner with New Story and dedicate a portion of our revenues to build homes for those who need them most in Haiti and El Salvador. Come join us as we build a new way to purchase a home!


You are an experienced senior engineer with a strong orientation towards backend systems and services. You are looking for a position where you’ll get to build key systems and lay down the foundation for our mortgage platform. As a full-time senior member of the engineering team, you’ll help lead the effort to build and operate our software systems while also contributing to the decisions that will steer the product’s future. As a senior engineer, you will also mentor our team of talented technologists and work closely with our product team.

You need to be comfortable with deployment environments, writing database queries, building out backend services, and implementing APIs. We integrate with many third-party services, so experience with a variety of third-party APIs is a plus. In the past, you have built and managed scaled platforms that enable many different users and use cases.

You’ll be a critical part of our product development team which is design, frontend, and backend engineering combined. You’ll use your education and experience to inform our engineering process and decisions when building new features, enhancing existing functionality, and ensuring the availability of the entire platform.

Be prepared to:

  • Prioritize and then execute. We focus on training our engineers to thoughtfully make an impact everyday and over the long term.

  • Be a teammate people trust and enjoy working with. We focus on building an inclusive work environment where everyone’s voice is heard, respected and encouraged.

  • Grow yourself and others. Be an active learner. We focus on training our engineers to be experts, mentors, and leaders.

We strive to build a product development organization that:

  • Delivers delightful products by reliably and quickly producing high-quality systems.

  • Is full of teammates people trust and love working with.

  • Is highly capable and competent across multiple domains and technologies.

  • Can gracefully make trade-offs against multiple conflicting constraints.

  • Aggressively overcomes obstacles to deliver amazing results.

  • Delivers valuable, and trustworthy experiences to our customers and partners.

  • Focuses on learning and improving its team members' skills and abilities.

  • Enables its members to be long term, successful engineers and technologists.

  • Has a vibrant culture and evidence based practices (Lean/Agile/DevOps practices).

  • Can deliver the solutions needed today (APIs, SaaS Mortgages, Integrations, Cloud Tech) and tomorrow (ML, Big Data).

Our technology stack:

  • Backend: Ruby on Rails (Rails 4.x)

  • Frontend: React, Redux, Javascript, JQuery, SLIM, SCSS, HTML 5, CSS 3

  • Databases/Datastores: Postgres, Redis, Memcache

  • Infrastructure: Heroku, AWS, Lambdas, SQS, and more.

  • Domains: APIs, Microservice Architecture, Monitoring/Telemetry, Scaled Architectures


An opportunity to be part of an agile team of thinkers and doers who are driven, collaborative, and authentic. You play a key role in shaping our incredible company and culture.

  • Meaningful equity as an early employee at Maxwell. We want you to participate and make decisions as an owner with our future in mind.

  • Top-tier insurance plans to select from along with a FSA and HSA where you can set aside pre-tax money for out-of-pocket medical expenses. 

  • Parking and public transport allowance to get you to the office in your own way whether you want to park or take the RTD (up to $100/month reimbursed).

  • 3 weeks of vacation time plus sick days, all 10 major holidays, and 1 floating holiday for your birthday, religious holiday, or other special day of your choice.

  • Up to 3 days off each year to volunteer at the charity of your choice.

  • An “Even Merrier Christmas” when we shut down the office between Christmas and New Year so you can enjoy your family and friends.

  • A powder ski day for that one day when you’ve just got to hit the slopes with no lift lines.


Please keep applications brief; we want succinct resumes with relevant experience. Be prepared to demonstrate your skills. Short but super-personalized cover letters are encouraged.

Principals only, please. We aren't using contingency staffing agencies at the moment. Maxwell is not responsible for any fees related to unsolicited resumes.