C# Jobs in Denver, CO

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Commodities Application Developer (C#, React, TypeScript) - AVP - Houston (Hybrid)

Citi

Remote or Houston, Texas, USA

Full-time

The role is for a C# developer who will be working within a small team on Commodities Marking and Market Discovery Platform used by traders across the regions. We offer the opportunity to grow professionally, learn new technologies and gain business knowledge. Responsibilities: Develop the Platform using C# with an opportunity to learn React during WPF to React migrationWork directly with quants and traders to specify requirements and own deliveries and 3rd line support to provide daily communi

Senior Software Engineer (Cloud Native - C#/.NET)

Copeland

Remote or Kennesaw, Georgia, USA

Full-time

About Us We are a global climate technologies company engineered for sustainability. We create sustainable and efficient residential, commercial and industrial spaces through HVACR technologies. We protect temperature-sensitive goods throughout the cold chain. And we bring comfort to people globally. Best-in-class engineering, design and manufacturing combined with category-leading brands in compression, controls, software and monitoring solutions result in next-generation climate technology th

Full Stack Developer (C# / .Net / JS / SQL / AWS)

Cymertek Corporation

Aurora, Colorado, USA

Full-time

Full Stack Developer (C# / .Net / JS / SQL / AWS) LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a skilled and versatile Full Stack Developer to join our team, specializing in C#, .NET, JavaScript, SQL, and AWS. In this role, you will be responsible for building and maintaining robust, scalable applications across both the front-end and back-end. You will collaborate closely with cross-functional te

Sr. Software Developer - C#/WPF for UI/UX Development

Esri

Remote

Full-time

Overview This is a great opportunity to join a fast-paced agile team that works with the latest technologies and patterns, asynchronous programming, and MVVM to design and develop next-gen Esri software. We are focused on designing and developing solutions for working with raster and imagery in ArcGIS Pro. Our tools support complex real-life workflows in 2D & 3D for raster / image processing and analysis. If you are excited about user interaction and user interface development, then join our cr

Senior Software Engineering (RPA - Automation Anywhere 360 & C# .NET)

Mastercard

Remote or O'Fallon, Missouri, USA

Full-time

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest po

Staff Engineer - Software

IT Minds LLC

Littleton, Colorado, USA

Contract

Staff Engineer - Software 3+ months C2H Littleton, CO Primary Skills: Expert-level proficiency in at least one programming language (e.g. Java Python Go C++).Strong understanding of object-oriented design design patterns and software architecture.Experience building scalable distributed and high-availability systems.Proficiency in API design (RESTful APIs gRPC).Deep experience with AWS services especially: Amazon Connect Lambda DynamoDB S3 CloudFormation / CDK SQS/SNS/Kinesis Infrastructure as

Software Engineer

Visa Inc.

Highlands Ranch, Colorado, USA

Full-time

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhe

Senior Software Engineer

ONEflight International

Englewood, Colorado, USA

Full-time

ONEflight International is the fastest growing market leader developing and implementing technological solutions for non-commercial air travel through the proprietary online Book a Jet platform. With nearly 500 world-class aircraft charter operator partnerships and a network of 5,000 private jets worldwide. The demand for Private Air Travel has surged in the last two years with future predictions confirming the demand is here to stay. ONEflight has emerged as a Leader in this space through innov

Infrastructure Technical Architect/ Remote , ( Denver, CO ),12Months Contract

Suncap Technology

Remote or Denver, Colorado, USA

Contract

Infrastructure Architect Location: Remote , ( Denver, CO ) Duration:12 Months Contract Designs, develops, and implements application infrastructure to provide highly-complex, reliable, and scalable applications and systems to meet the organization's objectives and requirements in a specialized industry. Supports solution development and Technology/Architecture selection activities and assesses technical architecture. Provides specifications for physical components, hardware, and software. Req

Engineer In Training I/II - Structural

Martin/Martin, Inc.

Lakewood, Colorado, USA

Full-time

Job Type Full-time Description Martin/Martin, Inc. is looking for a structural Engineer in Training (EIT) to join our Structural Engineering Group in our Lakewood, Colorado office. This engineer will have the opportunity to work on a broad range of project types with many different structural materials. This position will provide opportunities to gain experience in both new building structural design and existing building investigations and retrofits. About Martin/Martin, Inc. Martin/Martin,

(USA) Software Engineer III

Walmart Inc.

Remote or Denver, Colorado, USA

Full-time

Position Summary Are you a seasoned software engineer looking to make a significant impact? Join Walmart/VIZIO as a Software Engineer in our Content Services team. This is a unique opportunity to work on cutting-edge technology, shape our software solutions, and help drive the future of our digital content. What you'll do About the Team: The Content Services team at Walmart/VIZIO is dedicated to delivering top-tier digital content experiences. We operate with a focus on innovation and scalabi

Financial Applications Developer

Alterra Mountain Company

Denver, Colorado, USA

Full-time

Year Round COLLABORATION | AUTHENTICITY | PURPOSE | EMPOWERMENT Alterra Mountain Company is a family of iconic year-round mountain destinations, the world's largest heli-skiing operation, and Ikon Pass - the premier ski and snowboard season pass offering access to more than 50 iconic mountain destinations around the world. Headquartered in Denver, Colorado and born out of a shared love of the mountains and adventure, Alterra Mountain Company exists to shape the future of mountain adventure. W

(USA) Senior, Software Engineer

Walmart Inc.

Remote or Denver, Colorado, USA

Full-time

Position Summary Are you a seasoned software engineer looking to make a significant impact? Join Walmart/VIZIO as a Senior Software Engineer in our Content Services team. This is a unique opportunity to work on cutting-edge technology, shape our software solutions, and help drive the future of our digital content. What you'll do About the Team: The Content Services team at Walmart/VIZIO is dedicated to delivering top-tier digital content experiences. We operate with a focus on innovation and s

Software Engineer

Trimble Mobile Solutions

Westminster, Colorado, USA

Full-time

Job Title: Software Engineer, Autonomous Dozer Controls & Machine Guidance Location: Westminster, CO Division: Trimble Civil Construction Field Systems (CCFS) Want to shape how civil construction gets done, autonomously? Are you an experienced and innovative Software Engineer with a passion for autonomous systems and machine guidance? Join our dynamic team at Trimble Civil Construction Field Systems (CCFS) where you'll be instrumental in developing cutting-edge software for autonomous and guid

Sr. Software Engineer

Visa Inc.

Highlands Ranch, Colorado, USA

Full-time

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhe

Infrastructure Engineer - ENG05 - Cleared On-Site

Computer Merchant, Ltd., The

Aurora, Colorado, USA

Full-time

JOB TITLE: SR PLATFORM ENGINEER LOCATION: AURORA, CO RATE RANGE: 95.00-100.00 PER HOUR JOB#: 14860837 REQUIRED Typically requires BS/BA Degree in Science, Technology Engineering Math (STEM) in Computer Science, Computer Engineering, Information Technology or Physics and 8+ years of related work experience Experience with Agile Development Methodologies (E.g. scrum, SAFe) Experience with VMware Experience with programming languages (E.g. Python, Java, Ruby, Bash, C++, C#, Go) Current TS/SCI /

Senior Salesforce Developer

GDH

Remote

Contract, Third Party

Job Description: Our client is seeking a highly skilled and experienced Senior Salesforce Developer to join their dynamic team. This role involves designing, developing, and enhancing Salesforce systems to meet evolving business needs. The successful candidate will be responsible for ensuring robust, scalable, and efficient backend systems. Responsibilities:Develop, customize, and optimize Salesforce solutions using Apex, Lightning Web Components, and other relevant technologies to align with

Senior. Platform DevSecOps Engineer (Onsite)

RTX Corporation

Aurora, Colorado, USA

Full-time

Date Posted: 2025-07-08 Country: United States of America Location: CO102: 16800 E Centretech Pkwy,Aurora 16800 East Centretech Pkwy Building S75, Aurora, CO, 80011 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: TS/SCI with Polygraph At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to

Lead Software Engineer

Compunnel Inc.

Denver, Colorado, USA

Contract

; Overview: As a Lead Software Engineer, you will play a pivotal role in designing, developing, and delivering complex software systems that align with strategic business goals. You will collaborate across cross-functional teams, mentor engineers, and drive innovation while ensuring high-quality execution of software solutions. This role requires technical depth, leadership, and a strong understanding of software architecture and development methodologies. ; ; Key Responsibilities: ; L the des

Data Engineer

GDH

Remote

Contract, Third Party

Job Description: Our client is seeking a highly skilled Data Engineer to join their Enterprise Data Services Team for a 6-month contract, with the possibility of extension or conversion to permanent status. This role is pivotal in supporting their dynamic ETL processes and data integration projects. While this position allows for remote work, priority will be given to candidates who are local to Tulsa. The successful candidate will bring a robust background in data engineering, with a strong pr