NewSoftware Engineer, Sr. The GEO Group IncSoftware Engineer, Sr.Boulder, COSummary: The Senior Software Engineer develops and modifies software solutions of a high degree of complexity and scope, using a thorough knowledge of current software development techniques and capabilities within an Agile Scrum framework. Primary Duties and Responsibilities: The Senior Software Engineer designs, develops and documents technical aspects of software systems and related hardware interface components, based on product and system requirements.
Senior Software Engineer, Agentic Commerce Global Payments IncSenior Software Engineer, Agentic CommerceDenver, CO$108,200–$163,400 / yearExperience building or integrating with AI-powered applications, agent frameworks, LLM tool-calling patterns, MCP-style integrations, A2A-style workflows, structured automation systems, or safe AI execution patterns such as validation, policy checks, audit logs, fallback paths, and protection against prompt injection or tool misuse. As AI agents begin to discover products, compare options, build carts, and initiate purchases on behalf of consumers, the payments layer needs new infrastructure for trust, identity, user intent, authentication, tokenization, fraud signals, and real-time transaction visibility.
Software Engineer III, DevSecOps ProtingentSoftware Engineer III, DevSecOpsWestminster, CO$70–$89 / hourAutomate infrastructure provisioning and configuration management using tools like Terraform and Ansible, conduct comprehensive system tests covering security, performance, and availability assessments, and ensure the team produces quality-driven, reproducible software that adheres to industry best practices. About Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies.
LEAD ENGINEER - PRINCIPAL ENGINEER - Instrument Mechanical Engineer - Boulder, CO Southwest Research Institute - FulltimeLEAD ENGINEER - PRINCIPAL ENGINEER - Instrument Mechanical Engineer - Boulder, COBoulder, CO$117,894 / yearFull timeProduce mechanical designs using CAD software including layouts, drawings, bill of material development, mass properties management, integration and test plans, procedure development, verification and test plans. Daily and Monthly Responsibilities: Develop complex mechanical designs for instruments, prototype development, and proposals including production of CAD models, drawings, and test procedures.
Software Development Eng - Full Stack VantorSoftware Development Eng - Full StackWestminster, ColoradoWorking closely with Product Management, Systems Engineering, and Solution Architecture, this role owns features end-to-end—from engineering specifications through production deployment—delivering secure, reliable, and maintainable software. This engineer thrives in an AI-Assisted (Agentic) Software Development Lifecycle (ASDL), contributes within a specification-driven engineering environment, and continuously seeks opportunities to automate engineering work and improve developer productivity.
Staff Software Engineer, Caching Capital Rx, Inc.Staff Software Engineer, CachingDenver, CO$200,800–$251,000 / yearDeep understanding of cache consistency and the failure modes that emerge at scale, such as thundering herd, hot key saturation, cache leasing, and dual-write consistency problems, and the judgment to choose the right invalidation strategy for a given workload . By delivering true price transparency, eliminating unnecessary middleman fees, and leveraging advanced AI-powered care delivery, Judi Health helps clients achieve unprecedented operational efficiency and service levels.
Staff Software Engineer, Performance Capital Rx, Inc.Staff Software Engineer, PerformanceDenver, CO$200,800–$251,000 / yearClaims processing, prior authorization, and supporting data products drive highly complex, data-intensive workloads where decisions across the entire database stack - including schema design, database configuration, connection management, and storage architecture - directly determine the platform's ability to deliver reliable performance under heavy read and write load. Experience evaluating and implementing cluster topology changes: connection pooling configuration, read replica strategy, partitioning/sharding approaches, and PostgreSQL - parameter tuning for high-concurrency transactional workloads .
Staff Software Engineer, Streaming Capital Rx, Inc.Staff Software Engineer, StreamingDenver, CO$200,800–$251,000 / yearProduction experience designing and operating WAL-based or log-structured replication systems, such as PostgreSQL logical replication, Debezium, Kafka Connect, or equivalent CDC frameworks at scale with an understanding of delivery guarantees, consumer lag management, and failure recovery. One of your first major initiatives will be leading the migration of our data warehouse synchronization layer from independently managed, batch-driven processes to a unified WAL-based replication pipeline, using an open table format for transactional data.
Senior Software Algorithm Engineer (TS/SCI) {S} ARKA Group, L.P.Senior Software Algorithm Engineer (TS/SCI) {S}Aurora, ColoradoSoftware Algorithm Developer, your responsibilities include: Leading a small software development team consisting of researchers, software algorithm developers, and full-stack/cloud-native developers to implement a multitude of algorithms which solve a broad set of challenges for our various customers and their domains. As an Algorithm Developer, you will support the development of algorithms in a multitude of disciplines from Signal/Image Processing, Space Domain Awareness (SDA), Satellite Communication (SATCOM), and Signals Intelligence (SIGINT).
NewProject Engineer System OneProject EngineerThornton, CO$70,000–$85,000 / yearThe Project Engineer will support Project Managers and Superintendents throughout the construction process, helping coordinate documentation, subcontractors, materials, schedules, and project communications. The ideal candidate will have 0–3 years of experience in construction, with a preference for candidates holding a degree in Construction Management, Civil Engineering, or a related field .
Embedded Software Engineer - 965 Quantinuum LLCEmbedded Software Engineer - 965Broomfield, CO$135,334–$181,900 / yearWith active engagements spanning pharmaceuticals, material science, financial services, government, industrial sectors, and leading academic and research institutions worldwide, we are helping organizations unlock the transformative potential of quantum computing. Our global team of more than 800 employees includes many of the world''s leading scientists, engineers, and researchers, with more than 70% of our technology team holding advanced degrees at the Master''s or PhD level.
NewPrincipal Software Engineer Vertafore IncPrincipal Software EngineerDenver, CO$150,000–$165,000 / yearAlthough not a primary duty compared to developing and supporting code, a software engineer at Vertafore also works directly with customers as part of a cross-functional team, which means you need to be a proactive self-starter, able to multi-task in a fast-paced environment and be service-focused to help nurture the customer experience. You will work with a fast-paced, skilled team of business analysts, conversion engineers, developers and quality assurance engineers across multiple high-profile projects with development responsibility of assigned projects.
Software Engineer II Sierra Nevada CorpSoftware Engineer IILone Tree, CO$108,496.89–$149,183.22 / yearThe ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support.
Software Engineer Altamira Technologies CorporationSoftware EngineerEnglewood, CO$120,000–$180,000 / yearExperience in one or more of the following: Java, JavaScript/Typescript, Python, Angular, ELK stack, Redis, Web Services (REST), Containerization (such as docker, lxc), Kubernetes, helm, Machine Learning, Data Analytics, Android development, NoSQL and SQL databases. However, Altamira Technologies Corporation considers multiple variables when determining compensation, including but not limited to, the level of responsibilities, prior work experience, education/certifications, customer contractual specifications, and any clearance requirements.
Front End Software Engineer Altamira Technologies CorporationFront End Software EngineerEnglewood, CO$140,000–$180,000 / yearExperience in one or more of the following: Java, JavaScript/Typescript, Python, Angular, ELK stack, Redis, Web Services (REST), Containerization (such as docker, lxc), Kubernetes, helm, Machine Learning, Data Analytics, Android development, NoSQL and SQL databases, Xmidas, Digital Signal Processing. However, Altamira Technologies Corporation considers multiple variables when determining compensation, including but not limited to, the level of responsibilities, prior work experience, education/certifications, customer contractual specifications, and any clearance requirements.
Senior Software Engineer II - Digital Engineering Rocket Lab CorpSenior Software Engineer II - Digital EngineeringLittleton, CO$130,000–$170,000 / yearImportant information: FOR CANDIDATES SEEKING TO WORK IN US OFFICES ONLY: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. Our Space Systems team builds everything from complete spacecraft, precision payloads to the components and subsystems that allow them to thrive in space, like solar panels, flight software, star trackers, optical systems, separation systems, radios, and more.
Software Engineer TechDigitalSoftware EngineerEnglewood, COThe team develops client-facing REST APIs that provide data for IPTV (television over the internet), enabling functionality such as consumer entitlement verification, on/off-net verification, parental control verification, and settings. The technology stack includes Scala, Scalatra, Memcached, Kafka, MongoDB, Docker, Kubernetes, and Splunk.
Software Test Engineer III (Contractor) Sierra SpaceSoftware Test Engineer III (Contractor)Centennial, CO$60.87–$83.69 / hourThe Software Test Engineer III is responsible for leading testing processes, designing comprehensive test plans, developing testing strategies, and architecting testing frameworks for large and complex aerospace software projects. Additionally, you will review and analyze software design descriptions, ICDs, and requirements in coordination with software development teams, lead and contribute to the continuous improvement of testing processes and methodologies, and implement automated testing tools and frameworks to optimize testing and verification processes.
Principal Software Test Engineer (Contractor) Sierra SpacePrincipal Software Test Engineer (Contractor)Centennial, CO$86.60–$119.08 / hourYou will make high-level software test design decisions that impact program cost, schedule, and technical performance, drive the strategic direction of the software testing team to align with organizational goals, and communicate effectively with both technical and non-technical senior-level stakeholders to provide updates on testing progress, issues, and resolutions. Architecting and designing sophisticated automated testing tools and frameworks to optimize testing processes will be a critical focus, along with directing the development, peer review, and management of test plans, test harnesses, test cases, test scripts, test procedures, and test reports for aerospace software systems.
Core-Platform Software Engineer ViaSat IncCore-Platform Software EngineerEnglewood, CO$174,000–$261,000 / yearActively design and drive software architecture involving a Linux based operating system with custom support applctions involving REST, HW interfaces, ARINC controllers, cellular device controllers, and other low level driver support. For specific work locations within San Jose, the San Francisco Bay area and New York City metropolitan area, the base pay range for this role is $174,000.00- $261,000.00/ annually.