Full Stack Backend Developer
Randstad USA, Englewood, CO, United States
Job Summary
Sr. Software Development Engineer (Onsite)
Locations
Greenwood Village, CO
Berkeley Heights, NJ
Omaha, NE
Compliance & Work Authorization
Green Card Holders: Must have been living and working in the United States for at least the last 3 years.
Background Check
Extensive 6-week process required post-offer.
Job Details
Location: Greenwood Village, Colorado
Job Type: Contract to Perm
Salary: $70 - 80 per hour
Work Hours: 8am to 5pm
Education: No Degree Required
Responsibilities
Design, build, and maintain applications using Java, Spring/Spring Boot/Spring Security as well as C#, .NET Framework, .NET Core, or .NET 6/7+.
Develop RESTful APIs, microservices, and backend services.
Integrate applications with databases using Entity Framework (EF) / EF Core and SQL Server.
Collaborate with cross-functional teams using Agile/Scrum methodologies.
Write clean, maintainable, and scalable code following industry best practices.
Conduct code reviews, troubleshoot issues, and perform performance optimizations.
Maintain and enhance CI/CD pipelines using tools such as GitHub Actions, Azure DevOps, etc.
Ensure application security using best practices such as authentication, authorization, and OWASP guidelines.
Create documentation and participate in architectural discussions.
Qualifications
6+ years of back-end development experience.
Strong proficiency in Java as well as C# and the .NET ecosystem.
Experience with Spring/Spring Boot/Spring Security.
Experience with ASP.NET Core, MVC, and Web API.
Working knowledge of SQL Server, Entity Framework, LINQ.
Familiarity with Azure (App Services, Functions, Storage, Key Vault).
Knowledge of OOP, SOLID principles, and design patterns.
Experience with unit testing (xUnit, MSTest, NUnit).
Strong understanding of REST architecture.
Proficiency with Git and CI/CD.
Excellent debugging and problem‑solving skills.
Preferred Qualifications
Experience with microservices architecture.
Knowledge of Docker and containerized deployments.
Exposure to Blazor, React, or Angular.
Experience with message brokers like Azure Service Bus, RabbitMQ, or Kafka.
Equal Opportunity Employer
Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.
Benefits
Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. Randstad Digital offers a comprehensive benefits package, including medical, prescription, dental, vision, AD&D and life insurance, short‑term disability, and a 401(k) plan (all benefits are based on eligibility).
Posting Duration
This posting is open for thirty (30) days.
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Sr. Software Development Engineer (Onsite)
Locations
Greenwood Village, CO
Berkeley Heights, NJ
Omaha, NE
Compliance & Work Authorization
Green Card Holders: Must have been living and working in the United States for at least the last 3 years.
Background Check
Extensive 6-week process required post-offer.
Job Details
Location: Greenwood Village, Colorado
Job Type: Contract to Perm
Salary: $70 - 80 per hour
Work Hours: 8am to 5pm
Education: No Degree Required
Responsibilities
Design, build, and maintain applications using Java, Spring/Spring Boot/Spring Security as well as C#, .NET Framework, .NET Core, or .NET 6/7+.
Develop RESTful APIs, microservices, and backend services.
Integrate applications with databases using Entity Framework (EF) / EF Core and SQL Server.
Collaborate with cross-functional teams using Agile/Scrum methodologies.
Write clean, maintainable, and scalable code following industry best practices.
Conduct code reviews, troubleshoot issues, and perform performance optimizations.
Maintain and enhance CI/CD pipelines using tools such as GitHub Actions, Azure DevOps, etc.
Ensure application security using best practices such as authentication, authorization, and OWASP guidelines.
Create documentation and participate in architectural discussions.
Qualifications
6+ years of back-end development experience.
Strong proficiency in Java as well as C# and the .NET ecosystem.
Experience with Spring/Spring Boot/Spring Security.
Experience with ASP.NET Core, MVC, and Web API.
Working knowledge of SQL Server, Entity Framework, LINQ.
Familiarity with Azure (App Services, Functions, Storage, Key Vault).
Knowledge of OOP, SOLID principles, and design patterns.
Experience with unit testing (xUnit, MSTest, NUnit).
Strong understanding of REST architecture.
Proficiency with Git and CI/CD.
Excellent debugging and problem‑solving skills.
Preferred Qualifications
Experience with microservices architecture.
Knowledge of Docker and containerized deployments.
Exposure to Blazor, React, or Angular.
Experience with message brokers like Azure Service Bus, RabbitMQ, or Kafka.
Equal Opportunity Employer
Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.
Benefits
Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. Randstad Digital offers a comprehensive benefits package, including medical, prescription, dental, vision, AD&D and life insurance, short‑term disability, and a 401(k) plan (all benefits are based on eligibility).
Posting Duration
This posting is open for thirty (30) days.
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