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SciTec

Full-time|$82K/yr - $121K/yr|On-site|Boulder, Colorado, United States

Join SciTec, a leading subsidiary of Firefly Aerospace, as we push the boundaries of technology in support of U.S. National Security and Defense. With over 45 years of experience, we specialize in crafting groundbreaking remote sensing algorithms and tools that empower our Department of Defense clients with exceptional data exploitation capabilities in missi…

Apr 30, 2026

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Staff / Senior Staff Systems Engineer

SciTec, a wholly owned subsidiary of Firefly Aerospace

Full-time|$98K/yr - $146K/yr|On-site|Boulder, Colorado, United States

Join SciTec, a dynamic and innovative subsidiary of Firefly Aerospace, as we push the boundaries of technology in support of U.S. National Security and Defense. For over 45 years, we have been at the forefront, providing advanced solutions that enhance missile defense, intelligence, surveillance, reconnaissance, and aircraft survivability missions.Note: All applicants must be U.S. citizens due to the nature of our government contracts.We are seeking a skilled Staff Systems Engineer to join our team in Boulder, Colorado. This is an exceptional opportunity to contribute to the development of Next-Generation Missile Warning software. You will collaborate with a dedicated team, focusing on the complete software processing of Overhead Persistent InfraRed (OPIR) sensor data, enhancing capabilities for Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence. If you are passionate about tackling engineering challenges that impact national security, we want to hear from you!

Apr 6, 2026

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Senior Python Software Engineer at SciTec | Boulder, Colorado

SciTec

Full-time|$126K/yr - $175K/yr|On-site|Boulder, Colorado, United States

SciTec, a subsidiary of Firefly Aerospace, brings over 45 years of experience developing technologies for U.S. National Security and Defense. The company focuses on remote sensing algorithms and tools that enable data exploitation for missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability. Role overview The Senior Python Software Engineer will design, build, and maintain software systems that support advanced analysis and real-time data processing. The position emphasizes work on distributed systems, microservices, and streaming data pipelines, key elements for mission-critical operations with the Missile Defense Agency. Projects include automating and orchestrating satellite mission management and missile-tracking workflows. Key responsibilities Lead the design and development of Python software systems Build and maintain distributed systems, microservices, and streaming data pipelines Drive automation and orchestration for satellite mission management and missile-tracking workflows Shape technical direction through architectural leadership and mentorship Take ownership of an evolving software product Collaborate with scientific and technical teams Requirements Extensive experience with Python Strong engineering judgment and ability to work independently Background in distributed systems, microservices, or streaming data pipelines Ability to mentor others and provide architectural guidance Collaborative approach across disciplines U.S. citizenship required (due to government contract work and security clearance requirements) Must be able to obtain and maintain a security clearance No visa sponsorship available Location This position is based in Boulder, Colorado, United States.

Apr 24, 2026

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Staff Data Engineer

CampMinder

Full-time|Remote|Boulder, CO or remote

Are you a passionate Data Engineer ready to join a dynamic team? At CampMinder, we are looking for a Staff Data Engineer who will play a critical role in shaping our data infrastructure and analytics capabilities. You will collaborate closely with cross-functional teams to design, build, and maintain data pipelines that support our business goals. If you thrive in a fast-paced environment and are eager to work with advanced data technologies, we want to hear from you!

Mar 26, 2026

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Staff AI Engineer

TIFIN

Full-time|$190K/yr - $225K/yr|Remote|Boulder, CO, Charlotte, NC or Remote

WHO WE ARETIFIN is at the forefront of revolutionizing the wealth management landscape. Our innovative platform enables financial institutions to streamline operations through intelligent workflows tailored for investors, advisors, investment teams, and operations personnel. By harnessing finance-native AI, specialized data, and robust enterprise controls, we empower our clients to enhance client service and achieve superior outcomes, all while optimizing resource utilization.WHAT SETS US APARTAgility: We pride ourselves on rapid development cycles, delivering MVPs in approximately three months and production-ready solutions in six to twelve months.Proven Success: Our previous ventures include 55ip (acquired by J.P. Morgan) and Paralel Technologies.Strategic Collaborations: We partner with industry leaders such as J.P. Morgan, SEI, Franklin Templeton, Morningstar, Broadridge, Motive Partners, and Tectonic Ventures.Expert Team: Our team combines unparalleled expertise in AI and financial services, with backgrounds from top-tier companies like Google, Microsoft, and BlackRock.OUR VALUESGrowth Mindset: We embrace personal development and encourage stepping outside of our comfort zones, fostering a culture of self-awareness and integrity.Authentic Communication: We prioritize honest, precise communication to foster shared understanding and collaborative problem-solving.Team Success: We focus on leveraging our strengths and holding ourselves accountable for results, always aiming for continuous improvement.ROLE OVERVIEWAs we expand our AI platform, we are developing advanced multi-agent systems that enhance advisor capabilities, streamline investment workflows, and enable autonomous research functionalities. We are looking for a Staff AI Engineer to architect, develop, and optimize these systems at scale. This is a hands-on, high-impact engineering role with a primary focus on deploying reliable, enterprise-grade AI systems into production.PROJECTSAdvisor Copilot (Multi-Agent Systems)

Mar 10, 2026

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Staff/Senior Staff DevSecOps Engineer

SciTec

Full-time|$98K/yr - $146K/yr|On-site|Boulder, Colorado, United States

Join SciTec, a forward-thinking subsidiary of Firefly Aerospace, where we are redefining the landscape of defense contracting by delivering cutting-edge technologies that bolster U.S. national security and defense initiatives. For over 45 years, we have been at the forefront of innovation, providing the Department of Defense with advanced remote sensing algorithms, tools, and techniques that enhance data exploitation capabilities for critical missions including missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability.Important Notice: All employees at SciTec must be U.S. citizens, as we exclusively engage in government contracts that require citizenship to obtain and maintain security clearance. We do not sponsor work visas of any kind, and applicants who do not meet these criteria will not be considered.As we expand, we seek passionate and mission-driven Staff and Senior Staff DevSecOps Engineers who are eager to make a significant impact—beyond just code. If you thrive on tackling complex challenges that matter, we invite you to be part of our team.

Mar 12, 2026

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Staff Solutions Engineer - North America (Remote)

Upbound

Full-time|Remote|Boulder, Colorado, United States

At Upbound, we are revolutionizing the construction of modern infrastructure for the Agentic AI Era. As the primary creators and maintainers of Crossplane, we are developing the Intelligent Control Plane—a next-generation platform layer designed to make infrastructure programmable, autonomous, and composable.Our mission is to empower AI-native enterprises with a foundational platform layer that enables teams to provision, operate, and adapt infrastructure at scale—ensuring platforms are optimized for both human and AI agents. We collaborate with leading cloud providers, ISVs, and open-source communities to facilitate faster, more confident organizational growth.Currently, Upbound supports Fortune 500 companies and platform engineers in over 100 countries. Crossplane has achieved over 100 million downloads and is actively utilized by more than 1,000 teams globally. We are a Series B company, backed by GV (formerly Google Ventures), Altimeter Capital, and Intel Capital, having successfully raised $69 million to date. Discover more about us at upbound.io.As a Staff Solutions Engineer (SE) at Upbound, you will play a crucial role in our pre-sales team. This position will support all pre-sales initiatives in North America across various segments. Following the qualification of leads, the Solutions Engineer will collaborate directly with customers to understand their technical business challenges. You will guide customers in recognizing the value that Upbound products and solutions provide. Solutions Engineers establish trustworthy technical relationships with our clients by actively listening and effectively communicating the value proposition of our offerings in a manner tailored to each customer’s specific needs.Solutions Engineers possess an in-depth understanding of Upbound’s product roadmap and will demonstrate the ability to anticipate customer needs, knowing when to promote upcoming solutions versus focusing on existing offerings based on the customers' medium- to long-term visions. They are expected to have a profound comprehension of the key technical and economic decision-makers and what it takes to secure buy-in for our innovative solutions.

Mar 9, 2026

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Staff/Senior Staff Rust Software Engineer

SciTec

Full-time|$98K/yr - $146K/yr|On-site|Boulder, Colorado, United States

SciTec, a subsidiary of Firefly Aerospace, develops technologies for U.S. National Security and Defense. With over forty years in the field, the team specializes in remote sensing algorithms and data exploitation, supporting areas such as missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability. Important Notice: Only U.S. citizens may apply, as required by government contracts. Applications from non-citizens cannot be considered. Role overview This Staff or Senior Staff Rust Software Engineer position is based in Boulder, Colorado. The role centers on building Next-Generation Missile Warning software, processing Overhead Persistent InfraRed (OPIR) sensor data to support missions including Missile Warning, Missile Defense, and Battlespace Awareness. What you will do Design, build, and enhance high-performance software systems using Rust Work in a secure environment focused on national defense Collaborate with a multidisciplinary team to address technical challenges Contribute to architectural decisions for mission-critical software Process and analyze OPIR sensor data for various defense applications Requirements Experience with Rust and high-performance systems Ability to work independently and solve complex technical problems Strong collaboration and communication skills across teams Commitment to supporting national security missions

Apr 24, 2026

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Staff / Sr Staff C++ Software Engineer

SciTec, a wholly owned subsidiary of Firefly Aerospace

Full-time|$96K/yr - $140K/yr|On-site|Boulder, Colorado, United States

Join SciTec, a leading non-traditional defense contractor that is part of Firefly Aerospace, where we harness cutting-edge technologies to bolster U.S. National Security and Defense efforts. For over 45 years, we have proudly served Department of Defense clients by crafting innovative remote sensing algorithms, tools, and techniques that deliver superior data exploitation capabilities for missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability missions.Important Notice: All our projects are aligned with U.S. government contracts, necessitating U.S. citizenship for all employees. SciTec cannot offer sponsorship for work visas. U.S. citizenship is also required to secure and maintain a security clearance. Applicants not meeting these criteria will not be considered.We are excited to announce an immediate opening for a skilled software engineer to join our team, focusing on Next-Generation Missile Warning software development. This is a rare chance to become part of a dynamic small business that plays a crucial role in National Security and Defense. Our teams specialize in image analysis, low-latency data processing, and developing detection and tracking algorithms for the effective exploitation of remote sensing systems. The ideal candidate is a versatile C++ developer who thrives in a fast-paced, collaborative environment, with the capability to prototype, develop, integrate, and test advanced software solutions within Government frameworks.

Aug 22, 2025

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Staff / Senior Staff Full Stack UI Engineer

SciTec

Full-time|$98K/yr - $146K/yr|On-site|Boulder, Colorado, United States

SciTec, a proud subsidiary of Firefly Aerospace, is a pioneering force in the realm of non-traditional defense contracting, dedicated to delivering cutting-edge technologies that bolster U.S. National Security and Defense initiatives. With over 45 years of experience, our organization has consistently supported Department of Defense clientele by creating innovative remote sensing algorithms, tools, and techniques aimed at enhancing world-class data exploitation capabilities for missions related to missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability.Important Notice: All employees must be U.S. citizens due to the nature of our government contracts. Applicants who do not meet this requirement will not be considered.We are on the lookout for a Full Stack Software Engineer who will be responsible for designing, developing, and maintaining user-facing web applications alongside backend services tailored for real-time data and geospatial information systems. This position emphasizes the creation of dependable, visually engaging, and high-performance applications that function seamlessly in mission-critical contexts.The ideal candidate should possess a strong capability to navigate the entire stack—from frontend user interfaces to backend data processing pipelines—and excel in a collaborative, Agile development setting.ResponsibilitiesDesign, develop, and maintain both frontend and backend software, encompassing code, tests, and documentation.Build and integrate user interfaces along with data pipelines for real-time and geospatial data visualization.Design, prototype, and implement user-centric interfaces that effectively translate customer needs into intuitive solutions.Maintain and enhance 24/7 user-facing applications that manage, display, and monitor real-time data.Identify and rectify software defects and security vulnerabilities.Collaborate with team members during Agile ceremonies, including standups, sprint planning, and retrospectives.Contribute to architectural discussions and technical design decisions.Ensure adherence to software engineering best practices, including code quality, testing, and maintainability.Support documentation and knowledge sharing across teams.Perform other duties as assigned.

Feb 20, 2026

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Lead Senior Staff Software Engineer - Front End Fundamentals

The Trade Desk

Full-time|On-site|Bellevue; Boulder; Chicago; Denver; Irvine; Los Angeles; New York; San Francisco; San Jose; Seattle; Ventura

We are seeking a highly skilled and experienced Lead Senior Staff Software Engineer specializing in front-end fundamentals to join our innovative team at The Trade Desk. In this role, you will lead the development of cutting-edge front-end solutions that enhance user experience and drive our product's success. You will collaborate closely with cross-functional teams, guiding junior engineers and fostering a culture of excellence in software development.

Apr 13, 2026

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Passionate Retail Gearhead / Sales Associate - Part Time

cscgeneration-2

Part-time|On-site|Boulder, CO

At Backcountry, we are dedicated to igniting the passions of outdoor enthusiasts. Our five dynamic online stores—Backcountry, Level Nine Sports, Competitive Cyclist, MotoSport, and SteepandCheap—are committed to providing our customers with the finest gear, expert knowledge, and inspiration they need to embark on their outdoor adventures. We pride ourselves on offering an exceptional selection of premium outdoor products, delivering a superior shopping experience, and sharing engaging, community-focused content that motivates our customers to enjoy life’s greatest moments. We are in search of a spirited and knowledgeable Gearhead (Sales Associate) to enhance our retail team. The ideal candidate will exhibit a strong passion for outdoor activities, possess outstanding communication and interpersonal skills, and be dedicated to delivering exceptional customer service. You will play a vital role in driving sales and assisting customers in selecting the perfect outdoor gear and apparel tailored to their needs.

Apr 13, 2026

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Full Stack Developer

Otter LLC

Contract|On-site|Boulder

Join Otter LLC as a Full Stack Developer, where you will play a pivotal role in crafting innovative web applications. You will leverage your expertise in both front-end and back-end development to deliver robust, scalable solutions that enhance user experience. Collaborate with cross-functional teams to design, develop, and maintain high-quality software that meets our clients' needs.

Feb 1, 2022

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Retail Sales Associate at Vuori | Boulder

Vuori, Inc.

Part-time|On-site|Boulder

About the Role Vuori is looking for a Retail Sales Associate to join the Boulder team. This role involves welcoming customers, answering questions, and helping shoppers find the right activewear. Sales Associates support daily store operations and help maintain a positive, energetic atmosphere. What You’ll Do Greet and assist customers on the sales floor Share product knowledge and highlight features of Vuori activewear Deliver attentive, friendly service throughout each interaction Help keep the store organized and inviting Contribute to a team-driven, lively retail environment Location This position is based in Boulder.

Apr 14, 2026

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Associate Director of Product Management for MDx & Enzymes

Watchmaker Genomics

Full-time|$150K/yr - $170K/yr|On-site|Boulder, CO

Position: Associate Director of Product Management (MDx & Enzymes)Department: MarketingPosition Type: Full timeLocation: Boulder, CO (preferred)Experience: Master’s degree with over 12 years of relevant industry experience, including 2–4 years in leadership and a proven history in product strategy.Position Summary: Watchmaker Genomics is looking for a dynamic and strategic Associate Director of Product Management specializing in MDx and Enzymes. This role will be pivotal in steering our product management team, focusing on advancing product strategies across key molecular diagnostics application-specific reagents, including qPCR, RT-qPCR, PCR, and isothermal amplification, along with enzyme technologies that support MDx and NGS workflows.The Associate Director will oversee a dedicated team of Product Managers who drive individual portfolio strategies. While each Product Manager leads their respective portfolio teams, the Associate Director will act as a strategic sponsor, ensuring alignment, momentum, and fostering cross-functional connectivity. This position is crucial for commercialization planning, customer-centric innovation, and early product discovery within Watchmaker’s Product Engine.This is a highly collaborative role with significant influence across Marketing, R&D, Commercial, and Executive teams. The ideal candidate is a subject matter expert in MDx and enzymology, a supportive team leader, and a strategic thinker who excels in fast-paced and OEM environments.

Oct 7, 2025

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Senior Full Stack Software Engineer

Foresight Diagnostics Inc.

Full-time|$145K/yr - $175K/yr|On-site|Boulder, Colorado

Location: Onsite in Boulder, CO. This position requires working at the Boulder office; remote or hybrid work is not available. Candidates should already be local or plan to relocate before starting. Role overview Foresight Diagnostics seeks a Senior Full Stack Software Engineer with strong Python skills and frontend experience in React. The role centers on designing, developing, and maintaining software that supports research, product development, and clinical testing. Experience with relational databases, especially PostgreSQL, is preferred. Familiarity with next-generation sequencing (NGS) laboratory workflows and data management is a plus. What you will do Design and build full-stack applications using React for the frontend and Python for the backend, with an emphasis on relational database storage. Work closely with scientists, lab staff, and business stakeholders to turn complex requirements into practical, production-ready software. Contribute to architectural decisions, participate in system design reviews, and join sprint planning sessions as part of a collaborative software development team. Maintain high standards for software quality and performance. Requirements Expertise in Python development. Frontend proficiency with React. Experience working with relational databases; PostgreSQL preferred. Ability to work onsite in Boulder, CO. Understanding of NGS laboratory workflows and data management is advantageous.

Apr 29, 2026

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Part-Time Sales Associate Opportunity in Boulder

Faherty Brand

Part-time|$17/hr - $21/hr|On-site|Boulder, Colorado, United States

Are you passionate about sustainable fashion and excellent customer service?Join our dynamic team at Faherty Brand as a Part-Time Sales Associate in Boulder, where your energy and enthusiasm will make a lasting impact on our customers. You'll engage with shoppers through storytelling and genuine interactions, helping them discover our unique products while becoming a trusted expert in sustainable fashion and personal style.Key Responsibilities:Bring your experience from high-growth direct-to-consumer retail brands.Demonstrate a strong omnichannel approach by providing seamless customer experiences across retail and e-commerce platforms.Utilize technology and apps effectively to enhance customer engagement.Communicate confidently and purposefully across various platforms.Achieve and exceed sales and performance targets with a proven track record.Show your passion for the brand by advocating for purposeful business practices.Physical Requirements:Be available during business hours, including evenings, weekends, and holidays.Ability to lift and move at least 40 lbs, as well as bend, reach, and stretch for products.Comfortable climbing ladders and standing for long periods.What We Seek:A natural people person who thrives on engaging and building relationships.A self-aware individual who learns from mistakes and embraces growth.Resourcefulness and a strong work ethic; you're not afraid to get your hands dirty.An inquisitive mind that challenges the status quo.A positive attitude that aligns with our brand values.A proactive problem-solver who is committed to delivering results.Integrity and consistency in following through on commitments.

Apr 6, 2026

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.NET Developer (Urgent Need) - GC and Citizens Only

usm2

Contract|On-site|Boulder

We are seeking a talented and driven .NET Developer to join our dynamic team. This is an urgent requirement, and we are specifically looking for Green Card holders and U.S. citizens. If you have a passion for developing high-quality software solutions and possess strong technical skills in .NET development, we want to hear from you!

Jun 9, 2016

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Full Stack Developer Intern - React JS

Otter LLC

Intern|On-site|Boulder

Join Otter LLC as a Full Stack Developer Intern specializing in React JS! This internship provides a unique opportunity to work on exciting projects that shape the future of technology.As a Full Stack Developer Intern, you will collaborate with a team of talented engineers, gaining hands-on experience in both front-end and back-end development. You will learn to solve complex problems and contribute to the development of innovative web applications.

Apr 30, 2020

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Associate Manager, Mountain Studio | Boulder, CO

Stio

Full-time|$52K/yr - $60K/yr|On-site|Boulder, Colorado, United States

Join us as the Associate Manager for our Mountain Studio in Boulder, where you will play a vital role in shaping the retail experience of our customers. As a key member of the Stio team, you will be tasked with driving sales, overseeing store operations, and cultivating a culture that reflects the spirit of the mountain lifestyle. Your leadership will be instrumental in guiding a passionate team, ensuring exceptional customer service, and enhancing our brand’s presence in the community.

May 4, 2026

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