Sr. Software Engineer Jobs in Colorado

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Software Engineer Senior Staff - TS Clearance

Lockheed Martin Corporation

Colorado Springs, Colorado, USA

Full-time

Job Description What We're Doing At Lockheed Martin Rotary and Mission Systems, we're pioneering the future of technology and defense. Our mission is to deliver innovative solutions that safeguard our nation and allies. Join us as we redefine what's possible in aerospace and defense. The Work As a SW Development Engineering Manager supporting the Lockheed Martin RMS Command and Control, Battle Management, and Communications (C2BMC) program, you will play a crucial role in enhancing the securit

Lead, Software Engineer Astrodynamics TS/SCI

Harris Corporation

Colorado Springs, Colorado, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Digital Software Engineer Senior Lead Analyst

Citi

Remote or Irving, Texas, USA

Full-time

Citibank, N.A. seeks a Digital Software Engineer Senior Lead Analyst for its Irving, Texas location. Duties: Design enterprise architecture patterns, frameworks, and reusable services to support standards and cloud adoption utilized across operations, personal banking, and wealth management applications. Provide architectural guidance to application engineering groups. Enable cloud adoption using application programing interfaces (API) and Microservices, reference implementations, scalable comm

Digital Software Engineer Senior Analyst

Citi

Remote or Irving, Texas, USA

Full-time

Citibank, N.A. seeks a Digital Software Engineer Senior Analyst for its Irving, Texas location. Duties: Develop and maintain software systems using Visual Studio Code, IntelliJ, Tableau, and Git. Develop front-end user interface (UI) for responsive web applications using Angular, Node.js, NgRx Store, JavaScript, TypeScript, Bootstrap, CSS, SASS, and HTML. Support adoption of micro front-end architecture for Citibank Online to improve delivery time to market via Module Federation. Implement perf

Senior Software Developer

SparkHouse LLC

Golden, Colorado, USA

Full-time

Senior Software Developer (recruiting for Sensera Systems | ;/strong> At Sensera Systems, we're passionate about empowering construction professionals to build with confidence. We're a fast-paced, fun, hungry, humble, and curious team dedicated to developing cutting-edge solutions for the construction industry. Our culture thrives on collaboration, innovation, and a shared commitment to making a real impact. We believe in continuous learning and growth, and we foster an environment where every t

Senior Salesforce Developer (10+ Years Experience) - Remote

URSI Technologies Inc.

Remote

Contract, Third Party

Position Senior Salesforce Developer (10+ Years Experience)Location RemoteDuration 1+ Year (Extendable) Job Description: We are seeking a highly experienced Senior Salesforce Developer with over 10 years of expertise in designing, developing, and maintaining complex Salesforce applications and integrations. The ideal candidate should have a deep understanding of Salesforce best practices, Lightning Components, Apex programming, and complex data modeling, along with proven leadership in guiding

Software Development Engineer III

Generac Power Systems Inc

Denver, Colorado, USA

Full-time

We are Generac, a leading energy technology company committed to powering a smarter world. Over the 60 plus years of Generac's history, we've been dedicated to energy innovation. From creating the home standby generator market category, to our current evolution into an energy technology solutions company, we continue to push new boundaries. The Software Engineer a senior member of a team developing and testing power generation control systems that can be remotely controlled and monitored usin

Senior Machine Learning Engineer

General Motors

Remote

Full-time

Job Description Research, design, and develop new machine learning solutions and algorithms for driverless technology company. Duties may include: Explore, prototype, validate, and iterate new algorithms and strategies. Drive efforts to optimize, supervise and refine on-road performance for models in production. Be considered one of the technical leaders of the department who guides current and future technology choices. Consider the business and operational impact for different technology trad

Lead Software Engineer (Remote)

Quest Diagnostics Inc.

Remote or Secaucus, New Jersey, USA

Full-time

Overview Oversee and support a team of back-end, front-end, and full-stack developers, as well as QA and QC resources. In this dotted-line leadership role, you will focus on process efficiency, quality improvements, team utilization, and reporting while working closely with Agile teams and prioritization frameworks. Pay Range: $100,000 - $130,000 / year Salary offers are based on a wide range of factors including relevant skills, training, experience, education, and, where applicable, certifi

Senior Server Engineer, Trust & Safety

Strava, Inc.

Denver, Colorado, USA

Full-time

About This Role Strava is the app for active people. With over 150 million athletes in more than 185 countries, Strava is where connection, motivation, and personal bests thrive. No matter your activity, gear, or goals, we help you find your crew, crush your milestones, and keep moving forward. Our mission is simple: to motivate people to live their best active lives. We believe in the power of movement to connect and drive people forward. We're seeking a Senior Server Engineer to join our Tr

Software Engineer, Backend

West Coast Consulting LLC

Remote

Contract

Job Description Title: Software Engineer, Backend Duration: Aug 5, 2025 - Jul 31, 2026 Location: Remote (North America) TECHNICAL SKILLS Must Have3+ years of software development experience in one or more general purpose programming languages (Java, Scala, Go, C++, Python).Nice To Have Experience with prompt engineering, machine learning or data science. Cost Center Code49 - Tech-Ads Engineering JOB DESCRIPTION The Ad Safety & Verification (ASV) team is small, scrappy, and able to execute o

Digital Software Engineer Senior Manager

Citi

Remote or Irving, Texas, USA

Full-time

Citibank, N.A. seeks a Digital Software Engineer Senior Manager for its Irving, TX location. Duties: Develop Customer Engagement journeys in Citi's Private Banking Mobile application for high net-worth private banking clients. Drive end-to-end delivery by participating in full Software Development Life Cycle involving Requirement Grooming, Design, Development, User Acceptance Testing, Production deployment, Friendly User Testing, and Customer Launch Support during the critical care period. Cond

Senior Software Developer (C++)

Brains Technology Solution

Remote

Contract

Senior Software Developer (C++) Remote 10+ YOE W2/1099 Position Note :: IRS MBI CLEARANCE IS REQUIRED Job Description :: Developer to design and develop C++ components to extract data from DB2 database on Mainframe and convert it to XML format for downstream processing. Design and develop C/C++ components in compliance with project guidelines 60% Perform unit and development level integration testing as needed 20% Perform code maintenance based on needs of IBM testing, customer testing, and prod

Senior Software Developer (ServiceNow, DevOps, JavaScript, AI, UI Design)

Ameri100

Remote

Contract, Third Party

Job Title: Senior Software Developer (ServiceNow, DevOps, JavaScript, AI, UI Design) Start Date: ASAP End Date: 12/31/2025 Location: Remote Rate: C2C all inc. Job Summary: We are seeking a highly skilled and forward-thinking Senior Software Developer to join our growing team. The successful candidate will have a strong foundation in ServiceNow development, JavaScript, DevOps, and UI/UX design, with added expertise in AI integration, unit testing, and performance optimization. This role include

Senior Staff AI Engineer - LLM inference optimization

Yoh - A Day & Zimmerman Company

Remote or San Jose, California, USA

Full-time

Senior Staff AI Engineer LLM inference optimization Roles and Responsibilities: Design and architect technical solutions to deliver foundational AIOS capabilities within SkyOS across ECU domains in electric vehicles (EVs).Lead the development of proof-of-concept projects to evaluate architectural designs for functionality, performance, security, and reliability.Collaborate closely with engineering teams to understand real-world development constraints and ensure high-quality implementation, val

Sr. Specialist, Software Engineering / Database

Harris Corporation

Colorado Springs, Colorado, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Lead Software Engineer, Imaging

Aduril Industries

Boulder, Colorado, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Software Engineer Sr - Space Protection Programs

Lockheed Martin Corporation

Littleton, Colorado, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio

Lead Engineer, Software Development - DXP

tax.com

Remote or Dallas, Texas, USA

Full-time

Why Ryan? Hybrid Work OptionsAward-Winning CultureGenerous Personal Time Off (PTO) Benefits14-Weeks of 100% Paid Leave for New Parents (Adoption Included)Monthly Gym Membership Reimbursement OR Gym Equipment ReimbursementBenefits Eligibility Effective Day One401K with Employer MatchTuition Reimbursement After One Year of ServiceFertility Assistance ProgramFour-Week Company-Paid Sabbatical Eligibility After Five Years of Service Ryan, LLC is an award-winning global tax firm that liberates its c

Software Engineer - Sr. Consultant Level (Java/Full Stack) (Hybrid/Onsite)

Visa Inc.

Remote or Atlanta, Georgia, 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