Hire the Best Software Development Freelancers in Colorado

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Bradley B.

Denver, Colorado

$25/hr
5.0
3 jobs

As a biomedical engineer transitioning into software development, I bring a strong foundation in troubleshooting, analytical thinking, and problem-solving. With hands-on training in full-stack web development, I’m passionate about helping businesses build a strong online presence, attract new clients, and effectively showcase their offerings. I specialize in both front-end and back-end development, with experience in: Languages & Frameworks: HTML, CSS, JavaScript, Python Libraries & Tools: React, Node.js, Express, Flask Databases: SQL, PostgreSQL, SQLAlchemy From concept to deployment, I offer end-to-end project management focusing on clean, efficient, and scalable code. What sets me apart is my commitment to clear communication and client satisfaction. I work closely with clients to ensure their vision is realized, providing regular updates and maintaining transparency every step of the way. Let’s bring your ideas to life—together.

  • Software Development
  • Webflow
  • Web Application
  • Desktop Application
  • SQL Programming
  • React
  • Node.js
  • Python
  • Flask
  • ExpressJS
  • CSS
  • JavaScript
  • Troubleshooting
  • Figma to Webflow Plugin
  • AI App Development
  • AI Agent Development
  • Web Scraping
John M.

Colorado Springs, Colorado

$125/hr
5.0
12 jobs

I bring a wealth of expertise in crafting software solutions for both web and mobile platforms, while also spearheading the implementation of streamlined software development practices that enhance efficiency for small teams and elevate the overall 'developer' experience. In my role as a freelance software engineer, I specialize in creating impactful and impeccably designed solutions that empower companies to focus on their core strengths. My dedication to developing thoughtful and user-friendly software ensures that businesses can thrive while relishing in a seamless digital experience. With a versatile background, I've partnered with a wide array of companies, ranging from quaint local enterprises to cutting-edge technology startups. I've even assumed leadership positions in expansive corporations with 50,000 employees, spanning the dynamic realms of telecommunications and print media. My repertoire includes an array of accomplishments, from architecting and constructing captivating marketing sites using JAMStack, to crafting bespoke CMS-driven websites and applications. I'm adept at designing APIs for seamless integration into other applications, spearheading e-commerce solutions, and engineering tailor-made applications using diverse programming languages and frameworks. My overarching goal is to maximize value for every business I collaborate with. Beyond my prowess as a developer, I take immense satisfaction in guiding companies and teams toward refined communication between product and engineering departments. By strategically prioritizing and tracking features and tasks, and implementing efficient infrastructure management, I foster an environment of unparalleled productivity. My leadership extends to managing infrastructure teams, adeptly navigating a spectrum that spans individually curated servers to harnessing the power of IaaS services and systems like Elastic Beanstalk, Laravel Forge, and OpsWorks. My versatility shines as I facilitate teams' transitions to cutting-edge practices such as infrastructure-as-code, utilizing tools like Terraform, and embracing technologies like ECS and Kubernetes. I also excel in designing Continuous Integration and Continuous Delivery pipelines, all with the objective of empowering teams to achieve more with less resources.

  • Amazon Web Services
  • Golang
  • API
  • WordPress
  • PHP
  • Docker
  • Laravel
  • Kubernetes
  • Terraform
  • Lumen Micro Framework
Michael P.

Boulder, Colorado

$70/hr
4.9
23 jobs

● "Michael is a superstar. He originally helped me with some items with the CRM I am using. Quickly he proved himself to have a skillset much deeper than that and we have developed a great working relationship for many technical items my company deals with. He is always responsive, is a great communicator and sets clear expectations. ● "Phenomenal job!! ● "Michael is an excellent freelancer and a very skilled Python professional. He's able to thoroughly understand even complicated problems. Highly recommended!" ● "Michael is an excellent freelancer with a value-first mindset. Highly recommended!" ● Expert Python / Back-End Developer With over 10 years of Python, Java, and C++ experience I am passionate about coding and designing applications. ● Front end and API creation using Django | React | Flask ● Experience deploying and managing AWS projects using Console, CLI and boto3 ● Design | Bootstrap ● Database" MySQL | PostgreSQL | MS SQL Server | MongoDB | Sqlalchemy ORM ● Experience in equity trading and financial applications. ● Extensive teaching experience. Over 20 years of programming I have acquired too many acronyms to list and I find those lists don't attract the right employers. More importantly, I have gained an intuitive programming skill that transcends language and I am passionate about the work. Christian Mayer says of Michael: Michael is an excellent freelancer and a very skilled Python professional. He's able to thoroughly understand even complicated problems. Highly recommended! Programmer, Musician, Day trader. I take particular jobs because I love the work. For most of my life, I have been a musician and teacher. Programming is a large part of my life. I learned to program to create music. I created compositions and soundscapes using Python, C++, and algorithmic scripts. Programming was a major part of my Doctoral studies for Music Composition. I used the expertise I gained to work as a software engineer. I have been programming for 30 years and I still love it. I have gained a rock-solid foundation in programming and software design and have utilized a wide range of languages and tools. They range from back-end business tools through full-stack development and include Python, Java, JavaScript, Django, REST APIs, and much more. I am looking for work that I can perform remotely at home. The position I accept will allow me to contribute to the well-being of your company and your clients. DMA Music Composition Cincinnati College-Conservatory of Music MM Music Theory Ithaca College BM Music Theory and Composition Utah State University less

  • Software Development
  • Music Composition
  • Qt Framework
  • Django
  • AMP Framework
  • pandas
  • Musical Transcription
  • JavaScript
  • Matplotlib
  • Java
  • Machine Learning Framework
  • TensorFlow
Alex R.

Castle Rock, Colorado

$75/hr
4.9
52 jobs

I have over 27 years of software development experience, 21 of those using .NET technologies. I prefer projects in C#, however I also work with VB.NET. I am proficient in desktop (WPF/WinForms) and web development (ASP.NET MVC/WebForms) using .NET technologies. My other experiences include C++, SQL Server, SSRS/SSIS, XML/XSLT, ColdFusion, JavaScript, HTML5, WordPress, and Python. As a freelancer I pride myself on delivering a quality product on time and on budget. My Upwork profile is "top rated" with a 100% success rate. I do have a full time job that limits my availability for freelancing, up to 20 hours a week in the evenings and weekends.

  • .NET Framework
  • Windows Presentation Foundation
  • C#
  • ASP.NET MVC
  • ASP.NET
  • Visual Basic
  • HTML5
Ryan B.

Castle Pines, Colorado

$75/hr
5.0
5 jobs

🔥 I am a Senior iOS Developer with industry experience since 2009. I have worked on dozens of mobile applications and continue to strive for quality in everything I create. I help companies create quality products in the beginning, or turn their already created application into one, that will last the test of time so it doesn’t need to be completely rewritten in a few months. Unlike other developers, I have experience from initial idea, to design, through implementation, and deployment, so I can predict potential problems before they happen to reduce costs. A little more about me, I’ve launched several dozen complex iOS apps. Collectively, they have grown to many millions of active users. Check below for just a few of the apps I have worked on! My clients include: 📍 Apple 📍 Time Warner Cable 📍 DaVita 📍 Experian 📍 Charter Communications ⭐ What I can bring to your project ✅ Top-notch experience on all iOS platforms ✅ Extensive experience working with large Swift and Objective-C code bases. ✅ Expert understanding of software architecture ✅ Ability to quickly diagnose bugs and provide fixes that meet your timeline. ✅ 24/7 clear communication: you will always be aware of the project status ✅ Someone who cares about helping you succeed and bringing value to your business ⭐ Why you should choose me ✅ Client Reviews: I focus on providing value to all of my clients and earning their trust and praise. ✅ Over-Delivering: this is core to my work as a freelancer. My focus is on giving everything and more. ✅ Responsiveness: being extremely responsive and keeping all lines of communication readily open. ✅ Resilience: For any issue that my clients face, I work through it until I find a solution. ✅ Kindness: Treating everyone with respect, understanding all situations with empathy, and genuinely wanting to improve my client's situations. 🏆 Reviews and feedback from clients The client reviews below are just a few quotes that describe the quality of work and value that you can expect from working with me. ⭐⭐⭐⭐⭐ "You're awesome! Thank you so much for getting all this resolved & fixing all the small things I was worried about. Second of all... you're awesome!" - Melissa ⭐⭐⭐⭐⭐ "Thanks for your excellent work implementing the changes - it is an excellent opportunity testing these ideas live - extremely helpful!" - Grace ⭐⭐⭐⭐⭐ "Thank you so much for everything! You have been so helpful and knowledgeable. " - Ammar

  • Swift
  • Firebase
  • iOS Development
  • Firebase Cloud Firestore
  • SwiftUI
  • UIKit
  • TypeScript
  • JavaScript
  • Node.js
  • Objective-C
  • Apple Xcode
  • iPhone UI Design
  • iPad UI Design
Martin P.

Golden, Colorado

$135/hr
5.0
61 jobs

Pell Software is a 100% US-based software development specialist based in Denver, Colorado focused on partnership and reliable, long-term support. About Us: • 100% US-based — Full-time staff, never outsourced • Prebuilt software templates — Save time & money • 70+ Perfect 5-Star Reviews! — Service-oriented approach • Long-term Partnership Focused — Collaborate directly with software engineers ———————————————————— What We Do: • API Integrations • Custom web programming • AI Development, AI-First Software Development • HIPAA compliant software & integrations • Web portals • Work management systems • Business portals & utilities • Middleware systems • eCommerce solutions • PWAs & desktop apps ———————————————————— Our Tech Stacks: • Microsoft: .NET Core, C#, VB, WebForms, MVC, Razor Pages, Blazor, Azure, MSSQL, Visual Studio, TypeScript • LAMP/WAMP: PHP, MySQL, Linux, Apache • Frontend: Vue, Angular, React, Boostrap • Ruby: Rails, Postgres • Other: git, Jira, Confluence, HTML, Javascript, jQuery, Claude Code, AI Software Development ———————————————————— Platforms & APIs: Authorize.NET, SagePay, MINDBODY Online, Brantree, PayPal, Amazon Pay, Fedex, UPS, FreightQuote, QuickBooks Online, QuickBooks Enterprise, Sage 100, Sage 300, Sage Cloud, Sage Intacct, Acumatica, ClubOS, Active Campaign, SharpSpring, Facebook, Google, FirstData, Counterpoint, Moneris Payments, Braintree, PaceJet, TaxJar, Avalara, Amazon, Facebook, Google, QuickBooks Online, MINDBODY Online, Active Campaign, SharpSpring, QuickBooks Commerce, Counterpoint, UPS, FedEx. ———————————————————— Pell Software, LLC *Check out our reviews online!*

  • JavaScript
  • PHP
  • WordPress Plugin
  • Payment Gateway Integration
  • Ecommerce Website Development
  • API Development
  • ASP.NET Web API
  • ASP.NET MVC
  • C#
  • Intuit QuickBooks
  • Sage
  • Sage 300
  • Custom App
  • Enterprise Resource Planning
  • API

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