Apply

Careerguidant

Full-time|On-site|Seattle

We are seeking a talented and experienced Senior .NET Developer to join our dynamic team at Careerguidant in Seattle. In this role, you will leverage your extensive knowledge of .NET technologies to design, develop, and maintain high-quality software applications. Collaborating closely with cross-functional teams, you will play a key role in delivering innov…

Oct 27, 2016

Apply

Senior .NET Developer

Aretetechnologies Inc.

Full-time|On-site|Richmond

Join our dynamic team at Aretetechnologies Inc. as a Senior .NET Developer. In this pivotal role, you will leverage your extensive experience in .NET frameworks and your passion for software development to create innovative solutions that drive our projects forward. You will collaborate with cross-functional teams to design, develop, and maintain high-quality software applications. Your expertise will be crucial in mentoring junior developers and ensuring best practices are followed throughout the software development lifecycle.

Jun 29, 2017

Apply

Senior .NET Engineer - Remote Opportunity at NextLink Labs

NextLink Labs

Full-time|Remote|United States

About NextLink LabsNextLink Labs is an innovative technology firm dedicated to empowering organizations to develop, scale, and secure their software applications. We understand that effective and secure technology utilization is crucial for the success of companies, teams, and products. Our commitment is to help our clients excel in their industries.As a fully remote organization, our team members are distributed across the nation. We prioritize a comfortable and collaborative work environment, fostering inclusivity and ensuring everyone can thrive both professionally and personally.Position SummaryWe are looking for a passionate Senior .NET Developer with extensive experience in C# and ASP.NET Core to join our Custom Software Development consulting team. In this role, you will be responsible for creating and maintaining scalable backend services and APIs, collaborating closely with our clients' engineering teams.Key ResponsibilitiesAs a Senior .NET Developer, you will:Design, develop, and maintain scalable backend services and APIs utilizing C# and ASP.NET Core (.NET 9).Implement and extend Clean Architecture with CQRS patterns using MediatR.Collaborate with fellow engineers to architect and execute modular, well-structured solutions.Engage directly with clients to provide demonstrations and gather feedback.Build and optimize data access layers using Dapper and PostgreSQL.Establish request validation pipelines utilizing FluentValidation.Participate in an agile team environment with daily stand-ups and weekly meetings.Contribute to code reviews and promote best practices among peers.Enhance observability and monitoring through Serilog, OpenTelemetry, and Grafana.

Mar 19, 2026

Apply

Senior .NET Developer

Comtech LLC

Contract|On-site|Seattle

Job Title: Senior .NET DeveloperLocation: Seattle, WADuration: Long TermThis is an exciting opportunity for a skilled and motivated software engineer to contribute to high-impact, customer-oriented projects. You'll engage in multidisciplinary approaches and collaborate closely with cross-functional teams and business stakeholders.

Aug 1, 2017

Apply

Senior .NET Developer

mindlance2

Full-time|On-site|Boston

We are seeking a highly skilled Senior .NET Developer to join our dynamic team in Boston. In this role, you will be responsible for developing and maintaining robust applications using the .NET framework. The ideal candidate will have a strong background in software development, a passion for technology, and a desire to work in a collaborative environment.

Apr 27, 2017

Apply

Senior Software Engineer - C# / .NET

Re:Build Manufacturing

Full-time|$115K/yr - $170K/yr|On-site|Los Angeles, CA

About Re:Build Manufacturing Re:Build Manufacturing is an innovative and expanding collective of industrial and engineering enterprises, dedicated to merging advanced technologies with operational excellence and strategic mergers and acquisitions to forge the next generation of industrial capabilities in America. At Re:Build, we harness extensive expertise in engineering, operations management, and technology to amplify the performance of our member companies. Our principled operating culture encourages transparency and integrity, leading to differentiated outcomes in a dynamic environment that fosters personal and professional growth. Founded with the vision to establish a sustainable and profitable model for revitalizing U.S. manufacturing, Re:Build has curated a robust suite of complementary services and business lines that allow us to cater to various end markets. Our acquired companies specialize in build-to-print and on-demand engineering and design services, leveraging their collective knowledge to advance into sophisticated program development and production, alongside developing our proprietary products. Our unique capabilities enable us to manage highly complex systems and products, providing a wide range of services, including product and systems design, automation, fabrication, assembly, and large-scale contract manufacturing. Our clientele spans diverse sectors such as aerospace, defense, mobility, healthcare, pharmaceuticals, biotechnology, clean technology, chemicals, energy, lifestyle, food production, and industrial equipment.

Feb 19, 2026

Apply

Senior Software Engineer, .NET - Remote Opportunity

PerfectServe

Full-time|$115K/yr - $115K/yr|Remote|Remote

About PerfectServePerfectServe delivers top-rated clinical communication and physician scheduling solutions, recognized as a Leader in the Gartner Magic Quadrant for Clinical Communication and Collaboration. With an impressive growth rate of 88% over the last three years, we are on the lookout for talented team members to join us in our mission!Our goal at PerfectServe is to enhance patient care by streamlining provider schedules and ensuring messages reach the right individuals at the right time, regardless of the care setting. By optimizing speed to care and improving clinical workflows, we aim to save lives, reduce hospital stays, minimize re-admissions, and restore joy to healthcare providers.By becoming part of the PerfectServe family, you will have the unique opportunity to help us integrate our solutions to achieve optimal patient outcomes and accelerate care interventions.We are proud to have an outstanding portfolio of clients, with new organizations recognizing the value of our innovative solutions each day.

Mar 16, 2026

Apply

Senior Software Engineer - .Net / C# Developer

APEX Career Services

Full-time|On-site|Overland Park

The Senior .Net Architect Software Engineer will possess extensive experience in system development and design, specializing in C#, .Net, ASP.Net, and SQL Server technologies. This role involves steering the future architectural strategy for the company’s proprietary software, including software maintenance, business solutions (BSOL), and web services (WS). The engineer will contribute to designing immediate enhancements, manage projects for offshore development efforts, and propose future software products. Additionally, the engineer will address and resolve current architectural challenges, defects, and enhancements as prioritized by the Director of Software Engineering and the Product Manager. They will also provide support to the Director of Compliance Filing and participate in sales support calls, reporting directly to the Director of Software Engineering.

May 16, 2017

Apply

.NET Developer with WCF/Web Services Expertise (RESTful/SOAP)

Sonsoft Inc.

Full-time|On-site|Austin

Join our dynamic team at Sonsoft Inc. as a .NET Developer specializing in WCF and Web Services, including RESTful and SOAP. We are looking for a talented individual who is passionate about software development and eager to contribute to exciting projects. Your expertise will play a crucial role in delivering high-quality solutions for our clients.

Oct 10, 2016

Apply

C# .Net Web Developer at Spruce InfoTech Inc | Dallas

Spruce InfoTech Inc.

Contract|On-site|Dallas

Join our dynamic team at Spruce InfoTech Inc. as a C# .Net Web Developer, where your expertise in software development will help shape innovative web solutions. You will be responsible for designing, coding, and maintaining web applications using C# and .NET technologies. This is a fantastic opportunity to work in a collaborative environment and contribute to exciting projects.

Oct 2, 2015

Apply

Senior Web Software Engineer

Atec Spine

Full-time|$120K/yr - $130K/yr|On-site|Carlsbad, California, United States

Atec Spine is seeking an experienced Senior Software Engineer, Web, to join our dynamic team focused on enhancing the Informatix platform through innovative web applications. This role offers an exciting opportunity to engage in the full software development lifecycle — from defining requirements and designing solutions to developing, deploying, maintaining, and optimizing performance.Key Responsibilities:Lead the development of user interface components for web applications to meet specific project needs.Set up and configure server environments specifically for Vue.js deployments.Collaborate with fellow web developers and software engineers to create a robust and adaptable front-end architecture.Perform performance testing, pinpoint optimization opportunities, and drive continuous improvements.Estimate tasks and execute software projects in alignment with project timelines.Mentor junior developers and oversee the comprehensive delivery of modules.Maintain clear and proactive communication regarding project statuses.Generate documentation pertinent to software development projects, including design artifacts and test plans.Work effectively with distributed teams around the globe.

Nov 11, 2025

Apply

Senior Backend Engineer - .NET/C# at Janea Systems | Remote

Janea Systems

Full-time|Remote|Remote

Janea Systems (USA) is a forward-thinking team comprised of top-tier software engineering professionals and innovative solution architects from across the globe. We offer impactful software development services to Fortune 500 companies, spanning from kernel-level programming to cloud solutions. We are on the lookout for a highly skilled Senior Backend Engineer to become part of our rapidly expanding consulting team. This exciting role will allow you to engage in high-profile projects at the forefront of the software industry.

Jan 29, 2026

Apply

Senior .NET Developer

Careerguidant

Full-time|On-site|Atlanta

We are seeking an experienced Senior .NET Developer to join our innovative team at Careerguidant. In this role, you will be responsible for designing, developing, and maintaining robust software applications using .NET technologies. Your expertise will help drive our projects forward and enhance our technological capabilities.If you are passionate about software development, enjoy solving complex problems, and are eager to work in a collaborative environment, we want to hear from you!

Oct 21, 2016

Apply

Senior .Net Developer

growetalents

Full-time|Remote|Anywhere

growetalents is looking for a Senior .Net Developer to help build and improve software solutions. This remote role centers on designing and implementing scalable systems that support the company’s goals. Role overview The Senior .Net Developer will work with colleagues from different areas of the business to deliver software projects. Collaboration and communication are key, as projects often span multiple teams. What you will do Design and implement scalable software using .Net technologies Work closely with cross-functional teams to deliver project goals Contribute to projects that support business growth Requirements Experience developing with .Net Ability to collaborate with diverse teams Interest in building solutions that scale

Apr 29, 2026

Apply

.NET Engineer

Northwestern Mutual

Full-time|On-site|Milwaukee

Join Northwestern Mutual as a .NET Engineer, where you will leverage your technical skills to develop innovative software solutions. Collaborate with a dynamic team to enhance customer experiences and streamline processes through effective programming and system integration.

Aug 28, 2017

Apply

.Net Developer at careerguidant | Plano

Career Guidant

Full-time|On-site|Plano

Job Overview:We are seeking a talented .Net Developer with extensive experience in C# .Net and related technologies to join our dynamic team in Plano. As a .Net Developer, you will be responsible for developing and integrating web services, creating high-performance applications, and improving existing processes through innovative solutions.Key Responsibilities:Develop and integrate web services and APIs using C# .Net and ADO.Net.Participate in the software development life cycle, ensuring the successful execution of projects.Conduct design and architecture reviews to enhance system performance.Collaborate with team members in a diverse environment to deliver high-quality software solutions.Employ Agile methodologies and continuous improvement practices in the development process.Utilize multithreading and service-oriented architecture to build scalable applications.

Apr 6, 2017

Apply

Senior Frontend Engineer - Web Platform

Verkada

Full-time|On-site|San Mateo, CA United States

Join Verkada as a Senior Frontend Engineer to help shape the future of our web platform. In this pivotal role, you will collaborate with cross-functional teams to design and implement innovative user interfaces that enhance our security and surveillance solutions. Your expertise in frontend technologies will drive the development of scalable applications that prioritize user experience.

Apr 13, 2026

Apply

Remote Senior Software Engineer - C#, .NET/.NET Core, Linux

Technology Navigators

Full-time|Remote|Remote

We are seeking a talented and experienced Senior Software Engineer to join our dynamic team remotely. In this role, you will leverage your expertise in C#, .NET/.NET Core, and Linux to develop innovative software solutions that drive our business forward. As a senior engineer, you will also mentor junior team members and collaborate closely with cross-functional teams to ensure project success.

Aug 1, 2023

Apply

Senior Staff Engineer - .NET Fullstack at Nagarro | Remote

Nagarro

Full-time|Remote|Remote

Join our dynamic team at Nagarro as a Senior Staff Engineer specializing in .NET Fullstack development. In this fully remote role, you will leverage your expertise to design, develop, and maintain complex software solutions that drive our clients' success. You will collaborate with cross-functional teams to implement best practices, enhance system performance, and deliver high-quality code.

May 12, 2023

Apply

.Net Engineer/Developer

Sonsoft Inc.

Full-time|On-site|Melville

Join our dynamic team at Sonsoft Inc. as a .Net Engineer/Developer. We are looking for a passionate and skilled individual to contribute to our innovative projects. You will work on developing robust applications using .NET technologies, collaborating with cross-functional teams to deliver high-quality software solutions.

Jun 28, 2016

.NET Web Developer with MVC, CSS, and Javascript Experience

Experience Level

Qualifications

About the job

About 360IT Professionals

Similar jobs