828 Manual Software Tester jobs in Littleton, CO

Outlier

Denver, CO 80219

2+ years of experience in backend engineering, AI automation, or complex systems integration
Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting)
Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases
Practical experience building for live, non-mocked environments and handling multi-turn system interactions
Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors
This is a 1099 contract opportunity on the Outlier.ai platform
You must be authorized to work in your country of residence
If you are an international student, you may be able to sign up for Outlier if you are on a visa

Spectrum

Littleton, CO 80121

BA/BS in Information Technology, Computer Science, or related field or equivalent combination of education and experience
2+ years database management systems
2+ years coding, testing, and designing software
2+ years software development methodologies
Demonstrated knowledge of one major programming language/tool, coding language and syntax, usage of functions and object-oriented patterns
Demonstrated knowledge of environments, docker images, container runtimes, cloud native app development, dependent systems, up/downstream APIs, clients, data stores, design patterns, and software architecture patterns
Ability to read, write, speak and understand English
Ability to apply company policies and procedures to resolve a variety of issues
Ability to break down assigned projects into manageable tasks and completes within a given timeframe
Ability to work on problems of moderate scope where analysis of situations or data requires a review of a variety of factors

Spectrum Careers

Greenwood Village, CO 80112

Cognizant

Englewood, CO 80151

10–12+ years of overall testing experience, including 7–9+ years in healthcare payer systems
5+ years of experience designing and leading Facets testing architectures
Deep understanding of Facets modules, claims processing, integrations, and batch‑oriented workflows
Strong experience across test automation, test data management, and large‑scale system testing
Proven ability to provide technical leadership across complex, multi‑stream delivery environments
Cognizant will only consider applicants for this position who are legally authorized to work in the United States without company sponsorship
This role is not able to offer visa transfer or sponsorship now or in the future

U.S. Army

Denver, CO 80219

Outlier

Littleton, CO

2+ years of experience in backend engineering, AI automation, or complex systems integration
Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting)
Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases
Practical experience building for live, non-mocked environments and handling multi-turn system interactions.
Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors
This is a 1099 contract opportunity on the Outlier.ai platform
You must be authorized to work in your country of residence