Senior Full Stack Engineer
$55 per hourPlaced
Job Description Job Description Our valued client in Aurora, CO are seeking a Senior Full Stack Engineer for their team. This is a six-month contract with the possibility of extension or conversion to full-time. This is a hybrid position that requires you to be on-site four days per week. We are unable to work with third-party companies or C2C. Position Overview We are seeking a skilled Senior Full Stack Engineer to maintain and modernize our core platform. You will manage our stable .NET and SQL Server stack while leading the migration toward a scalable, cloud-native microservices architecture . This role requires balancing robust legacy systems with cutting-edge architectural transformation. Core Responsibilities System Modernization Break down monolithic .NET applications into distributed microservices. Design scalable APIs and event-driven communication patterns. Implement containerization tools to optimize deployment workflows. Backend Engineering Maintain and optimize existing .NET Framework and .NET Core applications. Write complex, high-performing SQL queries, stored procedures, and schemas. Diagnose and resolve database bottlenecks to ensure high availability. Frontend Development Build responsive, user-friendly web interfaces using modern JavaScript frameworks. Ensure seamless integration between frontend UI and backend microservices. Required Technical Skills Backend: C#, .NET Core, ASP.NET MVC, Web API Database: SQL Server, T-SQL, query optimization, ORMs (Entity Framework) Architecture: Microservices, RESTful APIs, Event Buses (RabbitMQ / Kafka) Frontend: Angular, React, or Vue.js, along with HTML5, CSS3, and TypeScript Cloud & DevOps: Docker, Kubernetes, CI/CD pipelines, and AWS or Azure Qualifications Bachelor’s degree in Computer Science or equivalent work experience. 5+ years of professional full stack software development experience. Proven track record of migrating legacy codebases to microservices. Strong communication skills for collaborating across cross-functional teams. This is a contract opportunity with an hourly rate starting at $55/hour and is based on experience. Benefits include: medical, dental, vision, 401k, paid time off and holiday pay.
$115k - $125k
...product lines allow both property owners and prospective renters to better ensure occupancy and drive revenue. As a Senior Full Stack Engineer , you will have the opportunity to be a part of Engrain's growth and dynamic environment. You'll join the product and engineering...SeniorHourly payWork at officeRemote workFlexible hoursEngrain
Greenwood Village, CO4 days ago$126.65k - $182.85k
...Full-Stack Software Engineers (Experienced/Senior) The Boeing Company is seeking Full-Stack Software Engineers (Experienced/Senior) to join the FishTools program within the Ground Mission Management Software (GMM) team in Chantilly, VA, Mesa, AZ, or Aurora, CO. The...SeniorPermanent employmentWork experience placementRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift workBoeing
Aurora, CO5 days ago$145k - $160k
A government IT solutions provider is seeking a Senior Full Stack Developer to contribute to impactful features on VA.gov. This fully remote role requires expertise in Ruby on Rails, React, and OpenAI API integrations. The candidate will lead backend development processes...SeniorRemote workGovCIO
Denver, CO4 days ago$70 - $80 per hour
...salary: $70 - 80 per hour work hours: 9am to 5pm education: No Degree Required responsibilities: - 5+ years proven experience as a full stack developer who prefers frontend development and is proficient with Angular and/or React. We are looking for a developer with...SeniorHourly payPermanent employmentContract workRandstad
Greenwood Village, CO3 days ago- ...TITLE: Senior Full-Stack Engineer LOCATION: Denver, CO or NYC (On-site) USC and GC Financial Services / Trading / Capital Markets experience good to have Senior Full-Stack Engineer with 7+ years of Java (Spring Boot, REST, Microservices...SeniorWork experience placement
3B Staffing LLC
Denver, CO1 day ago - ...lending, and financial planning. We're scaling fast-and we need exceptional engineering leadership to help us build the future. We're looking for a Senior Software Engineer who thrives in true full stack development, but is mostly comfortable with React & RoR, and who brings...SeniorLocal areaRemote work
Jobot
Denver, CO1 day ago - ...Full Stack Engineer As a Full Stack Engineer in the healthcare space, you'll architect seamless, mission-critical applications that clinicians and patients depend on. From polished interfaces to high-performance backends, you'll shape technology that improves care delivery...SeniorWork at officeShift work2 days per week
Blue Shield Of California
Littleton, CO2 days ago $70 - $80 per hour
...80 per hour work hours: 9am to 5pm education: No Degree Required responsibilities: - 5+ years proven experience as a full stack developer who prefers frontend development and is proficient with Angular and/or React. We are looking for a developer with exceptional...SeniorHourly payPermanent employmentContract workTemporary workWork experience placementRandstad
Greenwood Village, CO1 day ago- A modern technology company is seeking a Senior Mobile & Full Stack Engineer with deep React Native expertise. In this role, you will lead the mobile experience while contributing to the full stack, ensuring scalability and performance. The ideal candidate has strong JavaScript...SeniorRemote work
Coder Technologies Inc.
Denver, CO4 days ago - ...Senior Full Stack Software Engineer Ether.fi is one of the largest crypto companies in the world. We have over $10B in assets under management and a team of 30 almost all technical staff. We've been profitable day one and are focusing on building real consumer applications...Senior
Ether
Denver, CO1 day ago $120k - $145k
A technology company focused on outdoor experiences is seeking a motivated Software Developer with over 5 years of web application development experience. The role involves designing, developing, and deploying software solutions using Angular and TypeScript. Candidates ...SeniorRemote workFlexible hoursCampspot
Denver, CO4 days ago$163k - $246.5k
...Fullstack Engineer As a Fullstack Engineer, you'll work across the stack to design, build and maintain a fast and reliable user experience for our customers. You... ...physics and philosophy to formal methods research and full-fledged corporations. We're new parents and new...SeniorCurrently hiringLocal areaRemote workWeekend work3 days per weekSemgrep, Inc
Denver, CO2 days ago- ...customers leverage their data for competitive advantage. As a Senior Full Stack Developer on this team, you will lead one or more teams... ...market.. Socialize recent technologies throughout the Engineering department. Function as an evangelist for leveraging GenAI...SeniorTemporary work
HirexHire
Denver, CO1 day ago $120k - $150k
...A fast-growing SaaS company in Colorado seeks a Senior Full Stack .NET Software Developer to lead development projects that enhance their Customer Data Platform. The ideal candidate will have over 7 years of experience with .NET technologies, DevOps practices, and cloud...SeniorAscent360
Denver, CO2 days ago- ...connecting the best talent with the most exciting opportunities and knowing a steady supply of both. Job Description Full-Stack Software Engineer (Back-End Leaning) - Node.js Specialist About Us Our team is composed of innovators, problem solvers, and tech...Senior
Code
Denver, CO3 days ago $108.4k - $227.5k
...Job Title: Mid-Senior Full Stack Developer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US Anticipated...SeniorFull timeContract workWork experience placementRemote workFlexible hoursCACI International
Aurora, CO25 days ago$160.65k - $232.3k
...Sr. DevOps Full-Stack Software Engineer The Boeing Company is currently seeking a Sr. DevOps Full-Stack Software Engineer to work in Chantilly, VA; Aurora, CO; Mesa, AZ. We're seeking a highly talented, motivated, and creative software developer to engineer new...SeniorPermanent employmentWork experience placementRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift workBoeing
Aurora, CO1 day ago- ...Sr. Full Stack Developer / AI Platform Engineer Greenwood Village, CO Type: Contract Category: Development Industry: Communications Reference ID: JN -052026-106995 Date Posted: 05/17/2026 Shortcut: Description Recommended Jobs Description...SeniorHourly payContract workLocal area
Eliassen Group
Greenwood Village, CO5 days ago - A fintech company is seeking a skilled Mobile Engineering Lead to oversee significant mobile initiatives and enhance consumer experiences. You will collaborate with product management and design, guiding engineering efforts amidst ambiguity and challenges. The ideal candidate...SeniorRemote workFlexible hours
Affirm
Denver, CO4 days ago - ...methodology, attending daily stand-ups, sprint planning, and retrospective meetings. Minimum 2-3 years of software engineering experience Have built mobile apps (and/or web apps) full-stack before Enthusiastic about photo sharing and/or AI and/or social media...Full time
Cheez
Aurora, CO4 days ago - ...Senior Full-Stack Developer (Vue.js V3 & ASP.NET Core) Remote Full Time Overview Seeking a Senior Full-Stack Developer with strong expertise in Vue.js V3 and ASP.NET Core to modernize legacy web portal applications. The role focuses on migrating ASP.NET Web Forms to modern...SeniorFull timeRemote work
Sri Tech Solutions
Denver, CO1 day ago $80 - $90 per hour
...Full-Stack Software Engineer We are seeking a motivated and creative full-stack software developer to engineer new solutions and support existing capabilities for an agile software program. This role involves the design and development of front-end user interfaces...Hourly payApex Systems
Aurora, CO9 hours ago$130k - $160k
...Senior Backend Software Engineer Location: Gaithersburg, Maryland; Alexandria, VA; Chantilly, VA; Aurora, CO; St. Louis, MO; Tucson, AZ Clearance... ...with the ability to successfully pass a Polygraph Schedule: Full Time Travel: No Remote: No Remote Company Overview...SeniorFull timeRemote workEnnoble First, Inc.
Aurora, CO5 days ago- ...reasonable commuting distance, as this role require s on-site presence at least three days per week . Overview: As a Senior Full Stack Engineer working with the latest generative AI technology, you will be part of a dynamic team that is passionate about driving...SeniorWork experience placementWorldwide3 days per week
Litera Corp.
Denver, CO1 day ago $125k - $130k
...depending on experience and qualifications. Job Summary: The Senior Full Stack Developer is responsible for designing, developing, and... ...requirements for enterprise financial software. Contribute to engineering practices that support compliance with banking security...SeniorRemote workFlexible hoursForta Solutions, LLC
Denver, CO5 days ago$145k - $160k
...Overview GovCIO is currently seeking a Senior Full Stack Developer dedicated to delivering impactful features on VA.gov. This pivotal... ...Experience supporting a team of cross-functional developers/engineers with proven engagement skills. Experience with Agile Methodology...SeniorFull timeRemote workFlexible hoursGovCIO
Denver, CO5 days ago$55 - $64 per hour
...Insight Global is seeking a Senior Full Stack Software Engineer to support a large-scale digital transformation focused on building digital-first customer and associate experiences. This role will be heavily backend-focused, centered on building and orchestrating APIs,...Insight Global
Greenwood Village, CO5 days ago$114k - $171k
...Payloads Department which has ~200 Software Engineers, DevOps Engineers, Systems... ...Engineering Leaders from entry-level to the most senior chief engineers and architects to Product... ...job : This requisition is sourcing a Full-Stack Software Engineer. A good candidate will...Contract workLocal areaRemote workRelocation packageShift workNorthrop Grumman
Aurora, CO10 hours ago$63 - $68 per hour
...Secret Clearance required DISS CE/CV Enrollment required Senior Full Stack Java Developer Position Overview We are seeking a... ...and code quality tooling. Strong understanding of software engineering best practices, object-oriented design, and application security...SeniorFull timeTemporary workRemote workABBTECH Professional Resources
Denver, CO2 days ago$82.1k - $172.4k
...Job Title: Full Stack Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local Anticipated Posting...Full timeContract workWork experience placementLocal areaFlexible hoursCACI International
Aurora, CO5 days ago
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