> Markdown version of [/jobs/ext/2083688-senior-software-engineer-c](https://www.wearedevelopers.com/jobs/ext/2083688-senior-software-engineer-c). 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 Software Engineer (C#) - **Company:** Synergy Ecp Llc - **Location:** Quantico, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Amazon Web Services, C Sharp (Programming Language), Elasticsearch, PostgreSQL, Microsoft SQL Server, Software Systems, Information Technology - **Published:** August 16, 2026 - **Apply:** https://www.juju.com/job/00000000gng2f3 ## About the Role Requires a bachelors degree in Computer Science or a related discipline from an accredited college or university and fourteen (14) to twenty (20) years of experience. Four (4) years of additional SWE experience on contracts of similar scope, type, and complexity may be substituted for a degree. Required Capabilities: + C# + MS SQL + PostgreSQL Desired Capabilities: + Elasticsearch + AWS CLEARANCE REQUIRED The qualified individual must be fully cleared in current access with the appropriate MPO client polygraph ## Description Synergy is looking for Senior C# Software Engineer that will wok closely with site partners at Quantico. You will be responsible to ensure data ingest, formatting, and transformation is completed according to customer defined specifications. You will validate and review effectiveness of existing software solutions and resolve any issues with the team. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Rethinking Intelligence: AI, Accessibility, and the Future of Inclusive Work - Artur Ortega](https://www.wearedevelopers.com/videos/1377-rethinking-intelligence-ai-accessibility-and-the-future-of-inclusive-work-artur-ortega) - [Add Location-based Searching to Site with ElasticSearch](https://www.wearedevelopers.com/videos/77-add-location-based-searching-to-site-with-elasticsearch) - [Optimizing Discovery: PostgreSQL's Role in Transforming GetYourGuide's Search](https://www.wearedevelopers.com/videos/1647-optimizing-discovery-postgresql-s-role-in-transforming-getyourguide-s-search) - [Discover the open source trio you didn’t expect: .NET and PostgreSQL on Linux](https://www.wearedevelopers.com/videos/2042-discover-the-open-source-trio-you-didn-t-expect-net-and-postgresql-on-linux) - [Building Systems that Last](https://www.wearedevelopers.com/videos/1389-building-systems-that-last) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [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) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)