1,069,292open jobs
62,393companies
181,798added this week
Browse all
Salary
≈ $101k – $201k per year (Estimated)
Location
Hybrid (Greenwich, United States)
Seniority
Middle · 7+ years exp
Employment
Contractor

Confirmed on the employer's own hiring board on Oct 2, 2026. First seen by Alion on Aug 6, 2026. Strategic Staffing Solutions scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Strategic Staffing Solutions (S3) is an IT consulting and business services firm headquartered in Detroit, Michigan, providing staff augmentation, managed services, total workforce management programs and direct-hire recruiting. Founded in 1990 by Cynthia Pasky, it deploys more than 4,000 consultants for Fortune 500 clients in financial services, energy and utilities, healthcare and insurance, with hubs in Buenos Aires, San Jose, London, Vilnius, Riga, Warsaw, Manila and Singapore. Its job board lists contract and permanent roles at client sites, including AI architects and engineers, business and data analysts, project managers, service desk analysts and recruiters.

C# Server-Side Developer (Middle Office Engineering)

Location: Greenwich, CT (Hybrid - 2-3 Days Onsite Per Week)

Duration: 12-Month Contract

Position Overview

We are seeking an experienced C# Server-Side Developer to join a Middle Office Engineering team supporting the development of mission-critical business applications. This role is ideal for a software engineer with a strong background in back-end development who enjoys building scalable, high-performance applications in a collaborative environment.

The ideal candidate will have extensive experience developing server-side applications using C#, strong SQL skills, and a passion for writing clean, maintainable code. This position offers the opportunity to work on business-critical systems while collaborating with a highly technical engineering team.

Key Responsibilities

  • Design, develop, and maintain server-side applications and services using C#.
  • Build and support mission-critical business applications.
  • Develop high-quality, scalable, and maintainable software solutions.
  • Collaborate with cross-functional team members throughout the software development lifecycle.
  • Debug, troubleshoot, and resolve complex application issues.
  • Work with SQL databases to support application functionality and performance.
  • Utilize messaging technologies (MQ) as part of distributed application architectures.
  • Participate in code reviews and follow software development best practices.
  • Manage source code using Git or other version control systems.
  • Work independently while contributing effectively within a collaborative team environment.

Required Qualifications

  • Bachelor's or Master's degree in Computer Science, Engineering, or a related discipline.
  • 7+ years of experience developing server-side/back-end applications using C#.
  • Experience with AWS or other cloud providers is a plus
  • Strong experience with SQL databases.
  • Experience working with messaging technologies (MQ).
  • Outstanding coding, debugging, and analytical skills.
  • Experience using source/version control systems such as Git.
  • Familiarity with software development best practices.
  • Ability to work independently and collaborate effectively within a team.
  • Strong verbal and written communication skills.
  • Experience with AWS or other cloud platforms.
  • Experience using AI-assisted development tools.
Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,069,292 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend
Similar stack
Same company
Greenwich
$175k – $215k per year • Equity • In office • 6+ years exp • New York
Python
TypeScript
DevOps
Rest API
AWS
Apply
Full-Stack Engineer 12 hours ago
$137k – $220k per year • In office • 7+ years exp • Bachelor's Degree • New York
JavaScript
Java
TypeScript
SQL
Dart
Java
Spring Framework
AI/ML
AI Agents
Edge AI
Frontend
Angular
Mobile
Flutter
DevOps
Rest API
Management
Agile
Apply
$85k – $120k per year • Equity • Remote (United States) • Full-Time • 3+ years exp • Bachelor's Degree
SQL
C#
C#
.NET
Databases
Chroma
DevOps
CI/CD
Windows
Apply
$129k – $174k per year • Hybrid • 1+ year exp • Bachelor's Degree • San Francisco
Python
Go
JavaScript
TypeScript
C++
Frontend
React.js
Apply
$120k – $235k per year • In office • 8+ years exp • Bachelor's Degree • Redmond
Python
C++
DevOps
CI/CD
Linux
TCP/IP
Wi-Fi
Apply
$93k – $189k per year • In office • Full-Time • 10+ years exp • Bachelor's Degree • Columbus • Charlotte
DevOps
GCP
AWS
Management
Agile
Scrum
Waterfall
Apply
≈ $95k – $219k per year (Estimated) • In office • Full-Time • Austin
Python
TypeScript
Databases
PostgreSQL
AI/ML
Cursor
LangGraph
Windsurf
Aider
LangChain
Claude Code
Model Context Protocol
LangSmith
CrewAI
LLM
RAG
Braintrust
OpenAI Codex
Structured Outputs
Voice Agents
Prompt Caching
Tool Use
Mastra
DevOps
GCP
AWS
GitHub
Apply
≈ $136k – $243k per year (Estimated) • Remote (United States) • Full-Time • Bachelor's Degree • Dallas
Python
SQL
Python
pySpark
AI/ML
Spark
Machine Learning
Apply
≈ $100k – $213k per year (Estimated) • Remote (Canada) • Full-Time • Bachelor's Degree • Toronto
Python
SQL
Python
pySpark
AI/ML
Spark
Machine Learning
Apply
≈ $77k – $181k per year (Estimated) • In office • Full-Time • Toronto
Python
JavaScript
TypeScript
Databases
OpenSearch
Google BigQuery
BigQuery
AI/ML
LangGraph
LangChain
Claude
LlamaIndex
Model Context Protocol
Vertex AI
Embeddings
Function Calling
AI Agents
Semantic Kernel
Llama
AWS Bedrock
Gemini
LLM
RAG
Google ADK
OpenAI
Anthropic
LLMOps
A2A
LLM Guardrails
Agentic Workflows
Multi-Agent Systems
Machine Learning
DevOps
GCP
Azure
AWS
Apply
Software Engineer 2 days ago
≈ $120k – $223k per year (Estimated) • Hybrid • Contractor • 5+ years exp • Phoenix
Python
Java
Java
Spring Boot
Databases
Oracle
Apache Kafka
AI/ML
Prompt Engineering
AI Agents
Flink
Google ADK
DevOps
Amazon S3
Apply
Software Engineer 4 days ago
≈ $116k – $214k per year (Estimated) • In office • Contractor • 7+ years exp • Bachelor's Degree • Charlotte
Java
SQL
Java
Spring Framework
Spring Boot
Hibernate
Spring MVC
Databases
PostgreSQL
DevOps
GitHub Actions
CI/CD
Git
AWS
Management
Agile
Apply
≈ $112k – $207k per year (Estimated) • Hybrid • Contractor • Bachelor's Degree • Detroit
JavaScript
TypeScript
Node JS
Databases
MS SQL
Azure Cosmos DB
Frontend
Angular
React.js
DevOps
Rest API
Azure DevOps
Azure
CI/CD
GitHub
Amazon S3
Management
Agile
Apply
≈ $134k – $248k per year (Estimated) • In office • Contractor • 8+ years exp • Iselin
Python
Java
DevOps
GCP
AWS
Docker
Kubernetes
Amazon S3
Apply
Software Engineer 2 days ago
≈ $40k – $110k per year (Estimated) • Remote (Argentina) • Full-Time
Python
JavaScript
TypeScript
C#
Node JS
AI/ML
Copilot
Frontend
Angular
React.js
DevOps
Rest API
Azure
CI/CD
Analytics
Power BI
Management
Power Automate
Agile
Scrum
Apply
$95k – $105k per year • Hybrid • 2+ years exp • Bachelor's Degree • Greenwich
Marketing
Salesforce
X (Twitter)
LinkedIn
Apply
$175k – $225k per year • In office • 2+ years exp • Bachelor's Degree • Greenwich
Python
Rust
C++
Zig
DevOps
Linux
Apply
$34k – $42k per year • In office • Full-Time • 1+ year exp • High School Diploma • Greenwich
Apply
Child Care Teacher 2 days ago
$42k – $50k per year • In office • Full-Time • 1+ year exp • High School Diploma • Greenwich
Apply
$60k – $80k per year • In office • Part-Time • Greenwich
Apply
See all jobs
This is one of many
1,069,292 more open roles from verified company boards, updated every day.