C# Full Stack Developer

Greenwich, Connecticut, US on site Until 9/27/2026 7+ years exp First posted July 15, 2026 Last posted July 29, 2026
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.

Requirements

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related discipline

• 7+ Years of work experience building web applications with C# and JavaScript/TypeScript

• Experience building mission-critical business applications

• Ability to work independently and collaborate in a team

• Experience with Angular or other web frameworks

• 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

Benefits

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.

About this role

Summary

Develop and modernize financial applications using C#, JavaScript, Angular, and cloud technologies.

Job title

C# Full Stack Developer

Experience level

7+ years

Minimum experience

7+ years exp

Industry

financial services

Location requirements

local to Greenwich, CT, hybrid work allowed

Salary

$0k–$0k

Management role

No

Skills & keywords

Required skills

C#JavaScriptTypeScriptAngularSQLGit

Preferred skills

AWSAI development toolingcloud providersMQ

Specializations

web applicationsC#JavaScriptAngularSQL
Locations

Structured locations inferred from the posting.

Greenwich, CT, USA

Hybrid City