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Backend developer • boulder co

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Sr Software Engineer

InfleqtionBoulder, CO, US
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We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our.We break down barriers between disciplines, stepping in wherever we can ...[internal_linking.show_more]

Software Engineer (Backend C#) - MakeMusic

PeakswareLouisville, CO, US
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Help Shape the Future of Music Creation and Education at MakeMusic.At MakeMusic, we believe music has the power to inspire, connect, and transform lives.For over three decades, we’ve been at the fo...[internal_linking.show_more]

Remote Kotlin Engineer - AI Trainer

SuperAnnotateGunbarrel, Colorado, US
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As a remote, hourly paid Kotlin Engineer, you will review AI-generated responses and generate high-quality Kotlin-focused content, evaluating the reasoning quality and step-by-step problem-solving ...[internal_linking.show_more]

Senior PL/SQL Developer

RIPPLE EFFECT CONSULTING LLCBoulder, CO, US
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Join the Market Leader in Electric Power Data and Analytics Solutions.The electrical grid is the largest and most complex machine ever constructed.Ripple Effect Consulting’s industry-leading electr...[internal_linking.show_more]

STAFF FRONTEND ENGINEER

Fluid Consulting ServicesBoulder, CO, United States
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Fluid's client is seeking a senior frontend engineer to elevate a high-traffic React/TypeScript platform.This role focuses on frontend architecture, developer experience, and guiding best practices...[internal_linking.show_more]

Remote Software Engineer (AI-Native Platform & Integrations) - AI Trainer ($70-$110 per hour)

MercorBoulder, Colorado, US
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[job_card.full_time] +2

About Mercor’s talent network** **This is an open application for future contract opportunities that match your background and interests.Once you complete your profile and pass our AI interview, yo...[internal_linking.show_more]

Java Software Developer (Senior)

ATTAINX INCBolder, Colorado, United States, 80305
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REMOTE (Must be willing to work on Alaska time).Ability to obtain a Public Trust level “clearance”.Programmer/Analyst who can provide development and support services for our government client.The ...[internal_linking.show_more]

Senior.NET Developer / SAAS / Boulder, CO Onsite

Motion RecruitmentBoulder, Colorado, United States
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An innovation-driven firm specializing in advanced knowledge management and human-centered design, building scalable platforms and collaborative ecosystems for agile organizations, is looking to hi...[internal_linking.show_more]

Remote Backend Engineer Talent Network - AI Trainer ($70-$150 per hour)

MercorBoulder, Colorado, US
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[job_card.part_time]

About Mercor’s talent network** Join our Backend Engineer Expert Network to connect with leading AI labs and companies seeking your expertise.This is an open application for future contract opportu...[internal_linking.show_more]

Remote Software Engineer - AI Trainer ($40-$50 per hour)

MercorBoulder, Colorado, US
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[job_card.full_time]

Role OverviewWe’re hiring Software Engineers to build and ship apps for Mercor’s RL Studio platform.The role involves developing MCP servers and sometimes BUAs, integrating real software into sandb...[internal_linking.show_more]

Virtual Data Collection Representative (Work-at-Home)

FocusGroupPanelLouisville, Colorado, United States
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[job_card.part_time]

Work From Home, Entry Level Data Entry Clerk As A Research Participant.We are looking for people who want to work remotely from home.You'll need an Internet connection and a mobile device or comput...[internal_linking.show_more]

Software Engineer (Full Stack) - TrainHeroic

TrainHeroicLouisville, Colorado, United States
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As a Software Engineer, you will be responsible for creating and supporting many of the sites and services that power our core and mobile products.The teams own the applications from inception to p...[internal_linking.show_more]

Mid Full Stack Engineer (5000) (Secret) (Broomfield, CO)

SMXBoulder, CO
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Outside Analytics has recently become a proud subsidiary of SMX, marking an exciting collaboration that enhances our collective capabilities to deliver cutting-edge digital transformation solutions...[internal_linking.show_more]

Production Coordinator

Nova Sky StoriesBoulder, CO, US
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With a veteran team of engineers and creatives, we design and operate lightweight, small, precise, and safe drones that perform in the most demanding environments—urban centers, extreme temperature...[internal_linking.show_more]

Technical SEO Content Engineer (SaaS / Developer Docs) REMOTE

NalpeironBoulder, Colorado, United States
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[job_card.full_time]

We are looking for a remote contractor to transform our technical documentation, written in GitBook (.This is not a traditional writing role — it requires structuring, optimizing, and expanding tec...[internal_linking.show_more]

Lead Engineer | AI-Powered Governance Platform (DeFi)

C&D Talent AdvisoryBoulder, Colorado, United States
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AI | DeFi | Data Infrastructure | Automation Systems.This role sits at the center of a major transformation — building an.This is not just backend engineering — this is.AI-native governance systems...[internal_linking.show_more]

Principal Software Development Engineer (P5)

Workday, Inc.Boulder, CO, USA
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Join our innovative Planning organization as a Principal Software Development Engineer.You’ll architect and lead the development of advanced planning features, seamlessly integrating AI capabilitie...[internal_linking.show_more]

Software Engineer (Backend C#) - MakeMusic

MakeMusicLouisville, Colorado, United States
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As Software Engineer you will be responsible for creating and supporting backend services that power our products, owning applications from inception through development, test, and release to produ...[internal_linking.show_more]

Summer 2026 Sales Internship (Housing + Paid)

Forge MarketingBoulder, CO, US
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Summer Sales Internship – Grit x Forge Marketing.Paid Internship | Housing Available | Leadership Opportunities | Summer 2026.Looking for a summer experience that challenges you and accelerates you...[internal_linking.show_more]

Sr Software Engineer

Sr Software Engineer

InfleqtionBoulder, CO, US
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  • [job_card.full_time]
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Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward.

At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation:

  • We break down barriers between disciplines, stepping in wherever we can make the biggest impact.
  • We thrive in uncertainty, embracing challenges as opportunities.
  • We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail.
  • We take bold, calculated risks to drive progress.

We are seeking a Senior Software Engineer to join the team building the control system software for Infleqtion’s quantum computers. The ideal candidate is an experienced backend engineer with a strong background in creating robust and scalable scientific applications. You will play a crucial role in designing, building, and maintaining backend services and control systems that drive our neutral atom quantum machines.

JOB RESPONSIBILITIES

The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time.

  • Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our neutral atom quantum computers.
  • Collaborate with interdisciplinary teams, including scientists, opto-mechanical engineers, and electrical engineers, to solve complex problems and deliver high-quality software solutions.
  • Empower interdisciplinary teams to create the tools they need by teaching engineering and programming best practices.
  • Mentor and guide junior engineers, fostering their growth and enhancing the team's technical expertise.
  • Lead code and design reviews, upholding engineering best practices and promoting a culture of quality and collaboration.
  • Support and debug all layers of the control stack from real-time embedded kernels to distributed services.
  • Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality.

Requirements

  • Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 5 years prior work experience
  • Experience with Python and at least one compiled language, with a desire to learn and work in Rust
  • Experience with Linux and virtualization technologies like Docker
  • Good verbal and written communication skills, able to effectively share information with technical and non-technical staff
  • Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance
  • Skilled in typical software engineering disciplines: testing, debugging, revision control, error-handling, readability, documentation, general code health, etc.
  • Desire to constantly improve and learn inside and outside of expertise

PREFERRED EXPERIENCE:

  • Domain-specific experience in statistics, machine learning, or AMO physics
  • Experience with Numpy, Scipy, and Pytorch
  • Experience with image analysis, emphasis on realtime object detection
  • Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes
  • Experience creating CI/CD pipelines, and Python package creation with C or Rust extensions

Benefits

The targeted salary range for this role is $106,000 to $141,000 on an annualized basis plus eligibility to participate in our annual incentive plan.

In addition to your base compensation, we offer a generous Total Rewards program which includes:

  • 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs
  • Employer funded Health Savings Account
  • Unlimited Paid Time Off
  • 401(k) Matching Programs
  • Company paid Life and AD&D Insurance
  • Flexible Healthcare Savings Account
  • Paid FMLA Leave
  • Paid Maternity/Paternity Leave
  • Employer Assistance Program
  • Student Loan Repayment

Equal Opportunity

Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.