58 csharp jobs at 35 companies in Middletown, CT

3w
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Senior .NET Full Stack Developer Lead (React/AWS)
Hartford, Connecticut, United States
$64k-$115k/yr OnsiteFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
.NET Core/C# and React experience, AWS and SQL Server knowledge, proven technical leadership, stakeholder communication, and experience working with distributed/offshore teams.
.NET, .NET Core, C#, React, React.js, JavaScript, AWS, SQL Server
2mo
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Sr. Software Engineer (Hybrid)
Hartford or Charlotte or Short Hills
$123k-$157k/yr HybridFull Time
Selective Insurance
Selective InsuranceNASDAQ: SIGI: Provider of commercial and personal property and casualty insurance.
5+ YOE5+ years of experience designing and developing complex applications; Bachelor's preferred in CS/Engineering; strong .NET/C#, API, SQL; cloud, Azure, DevOps, and leadership skills.
C#, .NET, API development, SQL, Azure, Container Apps, API Management, App Gateway, Key Vault, App Services, Logic Apps, SQL MI, Infrastructure-as-Code, Bicep, ARM, Terraform, Angular, SAFe
4d
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Test Engineer, Firmware & Hardware
New Haven, Connecticut, United States
OnsiteFull Time
ASSA ABLOY
ASSA ABLOYNasdaq Stockholm: ASSA B: Global manufacturer of locks and automated entrance systems.
Experience with electronic systems, embedded microcontrollers, test equipment, defect tracking, and product validation; familiarity with RFID/Wi‑Fi/Z‑Wave/Zigbee and mobile-to-cloud protocols preferred.
Python, C#, Java, Test Complete, oscilloscopes, function generators, digital voltmeters (DVMs), logic analyzers, protocol analyzers, robotic test systems
4d
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QA Automation Engineer (Playwright)
Hartford, Connecticut, United States
$53k-$93k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.
Strong Playwright and C# automation experience, REST API and SQL testing, Azure DevOps proficiency, experience with AI-assisted testing and Agile in-sprint/regression automation.
Playwright, C#, REST API, SQL, Azure DevOps, Copilot, GenAI, AI-assisted testing tools
3d
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Lead Software Engineer
Shelton or Indiana or Ohio or Louisiana or Iowa or New Hampshire or Delaware or North Carolina or Utah or Montana or Oklahoma or Virginia or Arkansas or Alabama or Missouri or Pittsburgh or Nevada or San Antonio or Tampa or St. Petersburg or Mississippi or Orlando or Tennessee or New Mexico or Kansas or Florida or Maitland or Phoenix or Idaho or West Virginia or Maine or Pennsylvania or Nebraska or South Carolina or Georgia or Wisconsin or Texas or Gilbert or Sunrise or Port St. Lucie or Kentucky or Dallas
HybridFull Time
HealthPlanOne
HealthPlanOne: Digital marketplace for health insurance and Medicare plans.
7+ YOE7+ years C#/.NET development experience, bachelor's in CS or related, strong OOP and design patterns, SQL Server and Azure experience, DevOps and source control familiarity.
.NET Framework, .NET Standard, .NET Core, .NET 9, .NET, C#, Blazor, Razor Pages, ASP.NET WebForms, WCF, Worker Services, JavaScript, Microsoft SQL Server, Microsoft Azure, CI/CD, Git, Microsoft Azure DevOps, Jira, Confluence
1w
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Data Measurement & Reporting Advisor - Evernorth - Remote
Bloomfield or Chattanooga or Scottsdale or Denver or St. Louis or South Carolina or United States
$97k-$161k/yr RemoteFull Time
The Cigna Group
The Cigna GroupNYSE: CI: Provides health insurance and pharmacy benefit management services.
Bachelor's degree preferred or equivalent experience; strong SQL, ETL, Python/C#/SSIS/SAS skills; experience building UIs, data pipelines, automation, and working with messy data in regulated environments.
SQL, Python, C#, SSIS, SAS, Pega, LexisNexis
2w
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Peoplesoft Developer (Hybrid)
Canton or Farmington or Boston or Raleigh
$81k-$115k/yr HybridFull Time
Intact Insurance Specialty Solutions
Intact Insurance Specialty SolutionsToronto Stock Exchange: IFC: Provides specialized property and casualty insurance and risk services.
3+ YOE3+ years PeopleSoft Financials and 3+ years enterprise Java or C# development experience; experience with PeopleTools, Application Engine, PeopleCode, Integration Broker, BI Publisher, and BMC Control-M; bachelor’s in CS/IS preferred.
PeopleTools, Application Engine, PeopleCode, Integration Broker, BI Publisher, BMC Control-M, Java, C#
3w
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VP Application Development
South Windsor, Connecticut, United States
OnsiteFull Time
RCN Capital
RCN Capital: National direct lender for real estate investors.
10+ YOE5+ Mgmt10+ years software development experience, 5+ years senior engineering leadership, experience with C#, .NET, microservices, cloud (AWS/Azure), Kubernetes, Git, Agile, and leading distributed teams.
.NET Framework, .NET Core, C#, Git, AWS, Azure, Kubernetes, EKS, Terraform, Ansible, PowerShell, Azure DevOps, SQL, PostgreSQL, NoSQL, Databricks, Snowflake, CI/CD, IaC, API
2mo
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Senior Quality Assurance Analyst
Iselin or Hartford or Stamford
$110k-$120k/yr HybridFull Time
Ascot Group
Ascot Group: Global provider of specialty insurance and reinsurance underwriting services.
5+ YOEBachelor’s degree or equivalent; 5+ years QA in financial services; 3+ years in Commercial/Specialty insurance; Agile; functional testing; automation tools (Playwright/Selenium/TestNG/JUnit/Cypress) preferred; Python/JavaScript; API testing.
Playwright, Selenium, TestNG, JUnit, Cypress, Python, JavaScript, Java, C#, Postman, SoapUI
3w
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Software Engineer II
Hartford or Atlanta or St. Paul or Hunt Valley
$120k-$199k/yr HybridFull Time
Travelers
TravelersNYSE: TRV: Provide property and casualty insurance for individuals and businesses.
4+ YOEBachelor's degree in CS or related STEM and 4+ years software development experience; experience with object-oriented languages, RESTful APIs, Salesforce preferred, Agile/Scrum experience, and ability to learn new technologies.
Salesforce, Apex, Lightning Web Components, Salesforce APIs, Java, C#, Python, JavaScript, RESTful APIs, Agile, Scrum, Version control systems
1mo
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Middle Office Software Developer
Norwalk or Rowayton
$115k-$200k/yr OnsiteFull Time
Graham Capital Management
Graham Capital Management: Manages alternative investment funds using quantitative and discretionary macro strategies.
5+ YOEBachelor's in computer science, 5+ years software development in financial services, experience with C#, Windows and web frameworks, SQL Server, messaging/SOA/APIs, Agile and unit/integration testing.
C#, Windows Forms, WPF, ASP.NET MVC, Angular, JavaScript, Web API, SQL Server, MOM, SOA, APIs, Agile, Coding agents and AI-assisted development tools
1w
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Technical Manager
Windsor, Connecticut, United States
$141k/yr OnsiteFull Time
Quest Global
Quest Global: Global engineering services for product development and lifecycle management.
3+ YOEBachelor's in Electronics or related plus 3+ years experience; demonstrable knowledge of ITAF, Appium, Python, Objective-C, C++, C#, shell scripting, Android/iOS, networking protocols and device validation.
ITAF, Appium, Python, Objective-C, C++, C#, Shell script, Android, iOS, UPnP, Telnet, TCP/IP, HTTP, A2DP, HFP, BLE, 802.11 a/b/g/n/ac/ax, Win32, MySQL, SCUBA, Lead Shine, Newport, Arcus, Apache Hive, Machine Vision
3mo
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Junior Software Engineer - Automation & Integration
Ridgefield, Connecticut, United States
OnsiteFull Time
Fletcher Development
Fletcher Development: Builds luxury custom homes and provides residential estate management services.
Backend development in .NET (C#) and Python; REST APIs; databases; payments security; AI tooling.
.NET (C#), Python, REST APIs, PostgreSQL, SQL Server, Stripe, QuickBooks API, OneSignal, Twilio, SendGrid, Copilot
3w
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Testing and Automation Engineer
Shelton, Connecticut, United States
$103k-$128k/yr OnsiteFull Time
Subway
Subway: Operates a global chain of quick-service sandwich restaurants.
3+ YOE3+ years testing/quality engineering experience; proficiency in test automation (UI/API/backend), performance testing, AI-assisted testing, CI/CD, and basic scripting in Java/JavaScript/Python/C#.
JMeter, Gatling, k6, Locust, Selenium, Cypress, Playwright, REST-assured, Postman, Java, JavaScript, Python, C#, CI/CD
2w
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Manufacturing Engineer (EE)
Middlefield, Connecticut, United States
$95k-$105k/yr OnsiteFull Time
AMETEK
AMETEKNYSE: AME: Manufacturer of electronic instruments and electromechanical devices.
3+ YOEBachelor's in electrical engineering required, 3+ years manufacturing/electrical engineering experience, electrical schematic interpretation, troubleshooting to component level, test and validation, process development, Lean/Six Sigma familiarity; programming experience (Python, C#, MATLAB) a plus.
Python, C#, MATLAB
1mo
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Data Engineer (CT, Newington)
Newington, Connecticut, United States
OnsiteFull Time
Applied Aerospace & Defense
Applied Aerospace & Defense: Manufactures precision flight-critical hardware for aerospace and defense.
Bachelor's in a technical field (or equivalent), extensive data engineering experience with SQL and Python, BI and ETL tool proficiency, experience deploying ML models, and familiarity with CMMC/NIST SP 800-171 and ITAR eligibility requirements.
SQL, Python, Microsoft SQL Server, Oracle, PostgreSQL, Microsoft Power BI, SSRS, PowerShell, C#, Perl, Microsoft SharePoint, ASP.NET Core, PHP, Bootstrap, HTML5, React.js, Node.js, Django, Microsoft Graph API, Microsoft Power Platform, Power Apps, Power Automate, Tableau, Qlik, Looker, MicroStrategy, Oracle Analytics, Microsoft Power Query, SSIS, Talend, Boomi, Apache Airflow, Prefect, Dagster, Apache Spark, Databricks, MLOps
1mo
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OneStream Integration Lead
Chicago or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$63k-$219k/yr FieldFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
3+ YOEMinimums include 2+ years OneStream end-to-end integration experience, 3+ years data transformation and reconciliation experience, 2+ years documenting architecture, Bachelor's degree or equivalent, and experience with REST APIs, SIC, and ERP systems.
OneStream XF, OneStream Workflow Scheduler, OneStream Marketplace, SAP, Oracle, Workday, Dynamics, Snowflake, REST APIs, SIC, CSV, XML, JSON, C#, Cognos TM1, Hyperion, Anaplan, Adaptive, Host Analytics
2d
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Microsoft Dynamics CRM Developer
South Windsor, Connecticut, United States
$115k-$145k/yr OnsiteFull Time
Miller Electric Company
Miller Electric Company: Provides electrical and technology infrastructure construction and maintenance services.
2+ YOEMinimum 2 years developing Dynamics 365 CRM solutions; experience with C#, .NET, JavaScript, Power Platform, Azure DevOps, and SQL Server; strong communication and problem-solving skills.
C#, .NET, JavaScript, HTML, CSS, Power Automate, Power Apps, Power BI, Dynamics 365 SDK, Dynamics 365 CRM, Azure DevOps, GitHub, SQL Server, SSRS
4d
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.Net Developer
Fort Mill or Hartford
OnsiteFull Time
Infosys
InfosysNYSE: INFY: Provides IT consulting, software development, and business outsourcing services.
Experience with .NET (VB.NET, ASP.NET, C#), HTML, web services, scripting, cloud (AWS), and MySQL/MongoDB. Bachelor\u0002s degree or equivalent experience; authorized to work in the US without employer sponsorship.
.NET, VB.NET, ASP.NET, C#, HTML, Web Services, AWS, MySQL, MongoDB
1mo
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
RCN Capital
RCN Capital: A national private lender providing financing for real estate investors.
7+ YOE7+ years software development experience with 3+ years in a senior/lead capacity. Strong experience with Microsoft .NET 10, C#, React, TypeScript, Azure, PostgreSQL, cloud-native architectures, CI/CD, and AI/LLM integrations. Bachelor's required.
Microsoft .NET 10, C#, React, TypeScript, Entity Framework Core, PostgreSQL, CosmosDB, Microsoft Azure OpenAI Services, Microsoft Azure Functions, Microsoft Azure App Services, Microsoft Azure Service Bus, Microsoft Azure Key Vault, Microsoft Azure AI Search, Microsoft Azure DevOps, GitHub Actions, LangChain, Semantic Kernel, Docker, Kubernetes, Tailwind CSS, Redux, Zustand