> Markdown version of [/jobs/ext/2613392-senior-net-c-developer](https://www.wearedevelopers.com/jobs/ext/2613392-senior-net-c-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior .NET /C # Developer - **Company:** Yoh Services LLC - **Location:** Greenwich, CT, United States - **Experience:** Expert - **Salary:** $208,000.0 - **Contract:** Temporary contract - **Skills:** JavaScript (Programming Language), .NET Framework, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Business Software, C Sharp (Programming Language), Databases, Custom Software, Extract Transform Load (ETL), Software Debugging, Enterprise Messaging Systems, Microsoft Office, Software Engineering, SQL Databases, Strategies of Testing, TypeScript, Web Application Frameworks, Web Services, Software Organization, Enterprise Software Applications, Backend, Git, AngularJS, Information Technology, Low Latency, Production Code, Integration Frameworks, Front End Software Development, Api Design, Code Restructuring, Software Version Control - **Published:** August 10, 2026 - **Apply:** https://www.careerjet.com/job/us543dd2ef90d812984f96d082df4c4d41/eaa ## About the Role * Seeking a 10 year +C#/.NET Developer /Engineer to do code hands on backend development, API integration, SQL/database experience, messaging, and the ability to build reliable enterprise software. * The Developer will help build and enhance custom software that connects internal business applications to Geneva through APIs and integration layers. * Refactoring and re-architecting existing systems, API development, data movement, integration design, rigorous testing, and validation. * There is some Front-end development in Angular. While being an expert is not required - it would be great at least one of the two candidates have Angular. * Detail-oriented engineers with strong technical judgment, ownership mindset, and the ability to work independently without heavy supervision. Key Requirements * 10+ years of hands-on software engineering experience, building enterprise applications using C#/.NET * Strong backend C#/.NET development experience * Strong experience with API integration, including vendor APIs, internal integration layers, REST/web services, or similar patterns * Ability to think through data movement, request/response workflows, latency, reliability, and integration performance * Strong SQL/database experience * Experience with MQ / messaging technologies or asynchronous integration patterns * Outstanding hands on coding, debugging, and analytical skills * Experience refactoring and re-architecting existing applications * Experience with source/version control systems such as Git * Familiarity with software development best practices, testing methodologies, validation, and production-quality code * Ability to work independently while collaborating effectively within a small team * Strong technical judgment, including knowing when to make decisions independently and when to escalate larger design decisions * Strong communication skills. * Bachelor's or Master's degree in Computer Science, Engineering, or a related discipline Preferred / Plus Skills * Experience with Angular or similar modern frontend frameworks * Experience with JavaScript / TypeScript (obviously if they have Angular this will be fine * Experience with Geneva or Advent Geneva * Experience with AWS or other cloud platforms * Experience in middle office, back office, investment operations, portfolio accounting, trade processing, reconciliations, or financial services technology * Working knowledge of AI-assisted development tooling, with the ability to review, validate, and explain AI-generated code * Willingness and flexibility to support occasional off-hours work as needed Ideal Candidate Profile ## Description It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. By applying and submitting your resume, you authorize Yoh to review and reformat your resume to meet Yoh's hiring clients' preferences. To learn more about Yoh's privacy practices, please see our Candidate Privacy Notice: https://www.yoh.com/privacy-notice Stay Safe During Your Job Search Fraudulent recruiting communications have become increasingly common. Emails from Yoh recruiters will only come from an @yoh.com email address. Yoh will never ask candidates to pay fees, purchase equipment, send gift cards, or transfer funds as part of the recruiting or hiring process. If you receive a communication that appears suspicious or requests payment, contact Yoh directly before responding or sharing personal information. ## Related Videos - [How to Stop Choosing JavaScript Frameworks and Start Living](https://www.wearedevelopers.com/videos/118-how-to-stop-choosing-javascript-frameworks-and-start-living) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Stand alone components in Angular](https://www.wearedevelopers.com/videos/656-stand-alone-components-in-angular) ## Related Articles - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)