C# Server Side Developer
Back to Jobs
28StoneGet Smart Job AI Coach in the appFree on iOS and Android

C# Server Side Developer
100–140 / Month
Location
Greenwich, Connecticut, United States
Experience
Senior
Posted
Jul 30, 2026
Apply by
August 29, 2026
Applicants
0
Early applicantEasy applyContractHybrid
Job Description
28Stone is a full service custom solutions firm. We offer a wide range of services - from ‘tip of the spear’ advisory, application design, system architecture to implementation, testing and deployment.
We partner with the world’s leading financial institutions to design and build robust financial applications that improve their business performance while reducing system risk, cost and time to market.
We develop technology of value: we are proud of our proven track record of delivering quality results and the trust our clients place in us with ongoing, repeat engagements.
Role Summary
We are looking for seasoned, detail-oriented engineers with strong technical judgment and an ownership mindset. The role is focused on modernization or replacement of existing systems and development of new systems to support financial services operations processes.
• Bachelor’s or Master’s degree in Computer Science, Engineering, or related discipline
• 7+ Years of work experience building server side / back-end applications and services with C#
• Experience building mission-critical business applications
• Ability to work independently and collaborate in a team
• Experience with AWS or other cloud providers is a plus
• Experience with AI development tooling is a plus
• Experience with SQL databases
• Experience with MQ
• Outstanding coding, debugging, and analytical skills
• Good communication skills
• Experience with Source / Version control systems such as Git
• Familiarity with software development best practices
Employment Details:
- This is a contractor position only (C2C).
- Looking for individuals with 7+ years of experience.
- Compensation ranges from $100-140 per hour based on experience and qualifications. Higher rates may be considered for exceptionally strong candidates.
- Candidates should be local to the Greenwich, CT Area and can work in a hybrid model (2-3 days in the office.)
We are flexible and take an individualized approach with each candidate we meet, so we encourage you to apply even if you do not meet every listed requirement.
Only candidates who have the right to work in USA are considered for this position.
Key Responsibilities
- Build and maintain server-side and back-end applications and services using C#
- Modernize or replace existing systems and develop new systems for financial services operations
- Debug code and perform analytical tasks to ensure system reliability
- Collaborate with team members and work independently on mission-critical business applications
Requirements
- Bachelor's degree in Computer Science
- Engineering
- or related discipline
- Master's degree in Computer Science
- Engineering
- or related discipline
Skills Required
C#SQLMQGitSource control systemsDetail-orientedTechnical judgmentOwnership mindsetAbility to work independentlyCollaborationCommunication skillsCoding skillsDebugging skillsAnalytical skillsAWSCloud providersAI development tooling
App exclusive · Free
Smart Job AI Coach
Your personal interview coach on every job — readiness tips, profile improvements, and role-specific prep. Available only in the Pulse Job app.
Interview readiness
See how prepared you are and what to improve for each role.
Personalized tips
Actionable suggestions based on your profile and the job.
After you apply
Keep coaching momentum from job detail through application success.




