Job#: 3009278

Job Description:

Apex Systems, a World-Class Technology Solutions Provider, is seeking applicants for the below position on behalf of our client. Please apply if interested and qualified. Please note that only qualified candidates will be contacted.

Position: Senior .NET API Developer

Location: Miami, FL - Onsite 3x a week

Duration : Long term contract

Position Overview:

Our client is seeking a highly experienced and motivated Senior .NET API Developer to join our Shipboard Technology team. This role is critical to the success of our portfolio delivery initiatives, focusing on building scalable, secure, and high-performing APIs that power our guest and crew experiences. You will work closely with cross-functional teams to deliver enterprise-grade solutions that align with our strategic goals.

Key Responsibilities:

- Design, develop, and maintain RESTful APIs using ASP.NET Core/.NET 6+.

- Collaborate with product owners, architects, and other developers to translate business requirements into technical solutions.

- Ensure high performance, scalability, and reliability of backend services.

- Implement secure authentication and authorization mechanisms (OAuth2, JWT).

- Conduct code reviews and enforce best practices in coding standards and architecture.

- Troubleshoot and resolve complex technical issues across environments.

- Participate in Agile ceremonies and contribute to sprint planning and delivery.

- Integrate APIs with internal systems and third-party services.

- Integrate with third-party APIs and services, ensuring robust error handling and data consistency.

- Manage API versioning strategies to support backward compatibility and smooth transitions.

- Implement structured logging using SEQ and other observability tools.

- Participate in Agile ceremonies and contribute to sprint planning and delivery.

- Experience with structured logging and monitoring using SEQ, Application Insights, or similar tools.

- Strong problem-solving skills and attention to detail.

- Excellent communication and collaboration abilities.

Required Qualifications:

- Bachelor’s degree in Computer Science, Engineering, or related field.

- 8+ years of experience in .NET development, with a strong focus on API design and development.

- Expertise in C#, ASP.NET Core, Entity Framework Core, and LINQ.

- Strong understanding of RESTful principles and microservices architecture.

- Experience with API documentation tools (Swagger/OpenAPI).

- Proficient in Git, CI/CD pipelines, and DevOps practices.

- Excellent problem-solving skills and attention to detail.

- Strong communication and collaboration abilities.

Preferred Qualifications:

- Experience with containerization (Docker, Kubernetes).

- Experience with performance monitoring tools (App Insights).

- Familiarity with Carnival Cruise Line systems or travel/hospitality domain is a plus.

- Past knowledge of legacy API technologies is a plus.

*Please note that as a contract employee of Apex Systems, benefits include the below with employee contribution*

· Health

· Dental

· Vision

· Life Insurance; Short Term Disability

· Hospitalization Coverage

· Direct Deposit

· Weekly Pay Periods

· Training and Development Programs

· 401k

· Referral Program

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.