Top 105 C# net developer Jobs in St. Louis, Mo

Lead Application Developer – C#/.NET and AI
Neteffects —Bridgeton, MO
- $120,000 - $130,000 a year
- Hybrid work
- Background check
- Computer science
- Azure
- Health insurance
- Dental insurance
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1d
.Net Developer
Weissman —St. Louis, MO
- Full-time
- Computer Science
- Research
- Mid-level
- Paid parental leave
- Disability insurance
Software Engineer III
Stellar IT Solutions LLC —St. Louis, MO
- $50 - $55 an hour
- Contract
- Remote
- SQL
- Senior level
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Programmer Analyst – Junior .NET Developer
Sovereign Technologies —St. Louis, MO
- Computer Science
- Bachelor's degree
- Computer skills
C# Developer (Jr and Sr Roles)
Fabergent —St. Louis, MO
- Customer service
- Mid-level
- Windows
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Senior .NET Developer
Sovereign Technologies —St. Louis, MO
- Computer science
- Computer Science
- Mid-level
.Net Software Engineer
Zelis —Creve Coeur, MO
- $95,000 - $120,650 a year
- Full-time
- System design
- Mid-level
- Office
- Paid holidays
- Disability insurance
4h
Software Developer Fulltime , 40 hours per week
I3GlobalTech —St. Louis, MO
- $122,970 a year
- Full-time
- Computer Science
- Mid-level
- Office
Applications Programming, Lead Associate
Peraton —St. Louis, MO
- $86,000 - $138,000 a year
- Full-time
- Remote
- 5 years
- Bachelor of Science
- Mid-level
- Health savings account
- Paid holidays
Back-End and Application Programming Interface (API) Developer
Stellar IT Solutions LLC —St. Louis, MO
- $60 - $65 an hour
- Mid-level
- 4 years
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Mid Software Engineer (SFA)
Kentro —St. Louis, MO
- Full-time
- Computer Science
- 5 years
- Research
- Health insurance
- Tuition reimbursement
Software Engineer (Desktop.NET)
Computer Information Concepts —St. Louis, MO
- $100,000 - $140,000 a year
- Full-time
- Remote
- 5 years
- Mid-level
- Travel
- Paid holidays
- Health insurance
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Application Developer II
Cass Information Systems, Inc. —Bridgeton, MO
- Hybrid work
- Computer science
- Azure
- Computer Science
C# VC++ VB RDBMS Application Designer & Developer
Pursuit Software —St. Louis, MO
- Computer science
- Computer Science
- Windows
Sr. Full Stack Engineer
Stellar IT Solutions LLC —St. Louis, MO
- $65 - $70 an hour
- Contract
- Senior level
Quick Apply
12d
Developer
Build-A-Bear Workshop, Inc. —St. Louis, MO
- Hybrid work
- Computer science
- Azure
- Computer Science
Software Engineer (Senior .NET / Full‑Stack Engineer)
Stellar IT Solutions LLC —St. Louis, MO
- $60 - $70 an hour
- Contract
- Remote
- 7 years
- SQL
- Senior level
Quick Apply
Software Developer
iBrain Technologies —Chesterfield, MO
- Remote
- Computer Science
- Mid-level
- Travel
IT Professionals
Sovereign Technologies —St. Louis, MO
- Computer Science
- Bachelor of Science
- Mid-level
Software Engineering Senior Advisor- Hybrid
The Cigna Group —St. Louis, MO
- Online Application
- Hybrid work
- Computer Science
- SQL
- Bachelor's degree

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c# net developer jobs near st. louis, mo

Lead Application Developer – C#/.NET and AI

Neteffects
Bridgeton, MO

Quick Apply

Job Details

Temp-to-hire
$120,000 - $130,000 a year
1 day ago

Benefits

Health insurance
Dental insurance
Paid time off
Vision insurance
401(k) matching
Life insurance

Qualifications

Version control
Software engineering
Azure
Management
Computer Science
CSS
Requirements specification
Requirements design
Visual Studio
C#
SQL
Development environments
System design for system development
Bachelor's degree
Mentoring
Project delivery management
Leading team collaboration initiatives
Web applications
Agile software development
Managing projects
Analysis (software development lifecycle)
Managing software development teams
Project leadership
TypeScript
Developer tools
Project stakeholder communication
Design (software development lifecycle)
HTML
Agile planning
Providing code feedback

Full Job Description

Lead Application Developer – C#/.NET and AI

Location: Bridgeton, Missouri
Schedule: Hybrid onsite every Tuesday and Wednesday
Employment Type: Six-month contract-to-hire
Engagement: W2 only; no C2C

Position Overview

We are seeking a Lead Application Developer who combines strong hands-on Microsoft-stack development experience with the leadership and architectural judgment needed to drive complex initiatives forward.

This individual will support the modernization of an ocean-freight auditing platform. The team is integrating new software with a legacy system and transitioning functionality to a modern platform. The Lead Application Developer will evaluate existing code, make modifications during the transition, participate in the development of the new solution, and help support the platform as additional clients are added.

This is not solely a coding position. The successful candidate must be able to gather requirements, challenge assumptions, recommend technical solutions, manage project activities, communicate with stakeholders, mentor developers, and drive initiatives through completion.

Responsibilities

Lead the design, development, and implementation of end-to-end application solutions
Evaluate existing application code and make modifications during a legacy-platform conversion
Participate in the development and implementation of the new application platform
Translate business needs into technical requirements, architecture, and user stories
Partner with business analysts, developers, and stakeholders throughout the project lifecycle
Provide technical leadership and mentorship to development team members
Challenge business and technical assumptions and recommend effective solutions
Conduct code reviews and ensure adherence to coding and quality standards
Develop and execute test plans to evaluate application and system performance
Research emerging technologies and recommend tools that improve flexibility, delivery, and cost effectiveness
Support project planning, stakeholder communication, requirements gathering, and delivery
Apply artificial intelligence and large language model capabilities to application development and engineering workflows
Work within Agile development practices and the complete software development lifecycle

Required Qualifications

Five or more years of professional application-development experience
Strong, recent hands-on experience with C# and .NET
Strong Microsoft SQL Server and relational-database experience
Experience with Azure
Five or more years of business-requirements gathering and analysis experience
Experience designing and developing internet-based systems
Experience using Visual Studio
Experience with source control through Azure DevOps, TFS, or Git
Knowledge of JavaScript, HTML, CSS, and modern web-development practices
Strong architectural, analytical, and problem-solving abilities
Experience leading projects, mentoring developers, and conducting code reviews
Ability to communicate technical concepts clearly to business stakeholders
Experience with Agile methodologies and the complete software development lifecycle
Bachelor’s degree in computer science, information systems, computer engineering, or equivalent professional experience

Artificial Intelligence Requirements

Candidates should have practical experience or a strong working understanding of one or more of the following:

Integrating large language models into applications
Prompt engineering or model fine-tuning
Generative AI and agentic AI development
AI-assisted requirements analysis and story creation
Claude Code, GitHub Copilot, Cursor, Devin, or similar AI development tools
AI-assisted code generation, validation, testing, or refactoring

Preferred Qualifications

React experience
Angular, AngularJS, or TypeScript experience
Experience modernizing or integrating legacy applications
Experience with transportation, freight auditing, invoice processing, or payment systems
Knowledge of data privacy requirements and best practices

Candidates must be local to the Bridgeton, Missouri area and available to work onsite every Tuesday and Wednesday.

Pay: $120,000.00 - $130,000.00 per year

Benefits:

401(k) matching
Dental insurance
Health insurance
Life insurance
Paid time off
Vision insurance

Work Location: Hybrid remote in Bridgeton, MO 63044

Quick Apply

Refine Your Search

c# net developer jobs in st. louis, mo

Lead Application Developer – C#/.NET and AI

.Net Developer

Software Engineer III

Programmer Analyst – Junior .NET Developer

C# Developer (Jr and Sr Roles)

Senior .NET Developer

.Net Software Engineer

Software Developer Fulltime , 40 hours per week

Applications Programming, Lead Associate

Back-End and Application Programming Interface (API) Developer

Mid Software Engineer (SFA)

Software Engineer (Desktop.NET)

Application Developer II

C# VC++ VB RDBMS Application Designer & Developer

Sr. Full Stack Engineer

Developer

Software Engineer (Senior .NET / Full‑Stack Engineer)

Software Developer

IT Professionals

Software Engineering Senior Advisor- Hybrid

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