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60 Instantserve Applications Developer Jobs Hiring Near You

InstantServe LLC

Application Developer

Atlanta, GA · On-site

Senior Web Developer The Atlanta Information Technology (AIM) needs a Senior IT Web, SharePoint/Power Platform Developer to deliver services and solutions using the Power Platform suite and web tools.

Instant Serve LLC

Mechanical Engineer

Trenton, SC · On-site

$75K - $95K/yr

Mechanical Engineer Location: Trenton, SC 29847, (Onsite) Salary: $75,000 - $95,000 / year + Bonus ... InstantServe is Proud to be an EOE and will consider all applications without regard to race ...

Instant Serve LLC

Network Engineer - Consultant

Columbia, SC · On-site

$96K - $132K/yr

... Security Engineer) InstantServe is Proud to be an EOE and will consider all applications without regard to race, genetic information, sex, age, color, religion, national origin, veteran status ...

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Infographic showing various Applications Developer job openings at Instantserve in the United States as of July 2026, with employment types broken down into 88% Full Time, 1% Part Time, 7% Contract, and 4% Nights. Highlights an 91% Physical, and 9% Remote job distribution.
.NET Developer - Application Modernization (Hybrid)

.NET Developer - Application Modernization (Hybrid)

InstantServe LLC

Hartford, CT • On-site

Full-time

Posted 5 days ago

Job description

Client: Connecticut Office of Early Childhood (OEC)
Location: Hartford, CT (Hybrid - 2 days onsite)
Duration: February 16, 2026 - June 30, 2026
Hours: Monday-Friday, 8:00 AM - 5:00 PM EST (40 hours/week)
Interview Process: Webcam interview followed by in-person interview
Local Candidates Only: Must be local or willing to commute/relocate
Position Overview
The Connecticut Office of Early Childhood (OEC) is seeking an experienced .NET Software Application Developer to support a legacy-to-modern application modernization initiative. This role involves full-stack development using .NET Framework 4.8, with responsibilities spanning both server-side and user interface development.
The developer will work closely with database and ETL teams in an Agile Scrum environment, contributing to application development, performance optimization, security hardening, and CI/CD pipelines using Azure DevOps.
Key Responsibilities
Requirements & Analysis
  • Collaborate with product owners, business stakeholders, and architects to gather and document technical and functional requirements
  • Translate business requirements into Azure DevOps work items, acceptance criteria, and development tasks
  • Create and maintain technical documentation, UI/interface mappings, and operational runbooks
Application Development
  • Design, develop, and refactor server-side components using C#, ASP.NET MVC (.NET Framework 4.8)
  • Build and maintain UI components using Razor Views, HTML5, CSS3, JavaScript, jQuery, and Bootstrap
  • Implement background jobs, scheduled tasks, and Windows services without introducing additional API layers
  • Conduct code reviews and enforce best practices related to security, performance, and maintainability
Database & Integration
  • Develop and optimize SQL Server / Azure SQL database objects, including schemas, stored procedures, and indexes
  • Collaborate with data engineers on SSIS/ETL processes and file-based integrations
  • Validate data migration, system integrations, and referential integrity
Performance, Security & Operations
  • Identify and resolve performance bottlenecks using caching, batching, and asynchronous processing
  • Implement secure coding practices, including authentication and authorization mechanisms
  • Support logging, monitoring, diagnostics, and incident response documentation
DevOps & Agile
  • Support CI/CD pipelines in Azure DevOps, including builds, releases, and deployments
  • Assist with deployment artifacts, rollback strategies, and release documentation
  • Actively participate in all Agile/Scrum ceremonies
Required Skills & Qualifications
  • Strong experience with C# and .NET Framework 4.8 (ASP.NET MVC, Razor)
  • Hands-on experience with Entity Framework and/or ADO.NET
  • Strong T-SQL, stored procedure development, and SQL performance tuning skills
  • Front-end experience with HTML, CSS, JavaScript, jQuery, and Bootstrap
  • Experience using Azure DevOps (Git, pipelines, work items)
  • Proficiency with Visual Studio 2022
  • Strong troubleshooting and production support experience
Preferred Qualifications
  • Experience with SSIS or other ETL tools
  • Unit and integration testing experience
  • Legacy .NET application modernization experience
  • Experience developing Windows services, scheduled tasks, or job schedulers
  • Familiarity with application logging, monitoring, and operational runbooks
  • Knowledge of enterprise security and data access controls
  • Familiarity with accessibility standards (WCAG) and cross-browser compatibility
Background Check Requirements
  • Employment verification (past 7 years)
  • Education verification (highest degree)
  • Federal, State, and County criminal background checks
  • Civil court history
  • Social Security address verification
  • National Sex Offender Registry check
  • Global monitoring check
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About InstantServe

Sourced by ZipRecruiter

InstantServe provides a one-stop solution to all Healthcare, IT/Non-IT Staffing needs. Established in 2016, InstantServe is a strong workforce of over 100+ go-getters with a demonstrated background in IT/Non-IT service. We are a nationally certified SBE from the Department of Administration (State of PA). As a proud Minority Woman Owned Small Business Enterprise (M/WBE), InstantServe boasts of a strong team of professionals who have extensive experience catering to several Federal, Public, Commercial, and Healthcare Clients which includes 26 States and 46 government agencies. InstantServe is a client-centric organization that offers cost-effective and reliable solutions. Client satisfaction is sacrosanct! Our team strives to provide the best staffing and IT solutions to take your business to the next level.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Wayne, PA, US

Year founded

2016

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