Senior C#/.NET Developer
Green Key Resources
Senior C#/.NET Developer Overview As a Senior C#/.NET Developer, you will design, develop, and modernize enterprise applications and services using Microsoft technologies. Collaborate with cross-functional teams to deliver robust solutions in a regulated financial-services environment. Lead technical initiatives, including design reviews, code reviews, and mentoring junior developers. Enhance application maintainability, testability, and performance while ensuring operational resilience. Utilize Azure DevOps for CI/CD pipelines, automated testing, and deployment controls. Investigate production issues, document root causes, and implement corrective actions. Work in a hybrid environment with opportunities for remote collaboration. Contribute to a dynamic team culture that values professional development and innovation. Senior C#/.NET Developer Key Responsibilities & Duties Design and develop enterprise applications, services, APIs, and integration components using C#, .NET, and SQL Server. Modernize application components to improve security, documentation, and operational resilience. Build and enhance Azure DevOps repositories and CI/CD pipelines for efficient software delivery. Support trading workflows involving market data, messaging, and enterprise interfaces. Investigate and resolve production issues using logs, database queries, and monitoring tools. Provide technical leadership through mentoring, knowledge sharing, and development standards. Collaborate with stakeholders to deliver controlled solutions in a regulated environment. Ensure compliance with industry standards and best practices in software development. Senior C#/.NET Developer Job Requirements Bachelor’s degree in computer science, engineering, or a related field. Minimum of 5 years of professional software development experience; 10 years preferred. Expertise in C#, .NET Framework, and modern .NET development. Proficiency in SQL Server, including query development and performance troubleshooting. Practical experience with Azure DevOps, CI/CD pipelines, and software change controls. Knowledge of object-oriented design, secure coding, and automated testing. Experience in financial services or capital markets preferred. Strong communication skills and ability to work collaboratively with stakeholders.
- ...Job Type : Full-Time/Contract (Open to C2C) Requirements: ~9+ years of experience in C# .NET Framework and SQL Server Development. ~ Experience building, integrating, maintaining, and supporting Trading Systems. ~ Strong understanding of systems architecture and...Senior.netFull timeContract work
INFOTRON
New York, NY3 days ago - ...supporting trade processing and new business developments. Responsibilities Build... ...development experience with a focus on .Net based technologies ~ Strong SQL development... ...to the highest ethical standards Seniority level Mid-Senior level Employment...Senior.netFull time
EJR Search
New York, NY2 days ago $200k
...You will be part of a team designing and developing advanced cloud solutions on MS Azure, with... ...software development teams • Experience with C# and TypeScript • Deep care for code... ...with the latest technologies in Azure and .NET Core • Desire to be part of an agile setup...Senior.netingenium.agency
New York, NY3 days ago$800 - $1,000 per day
...Our client is looking for a C# Developer to join their team in NYC. Pay: $800-1,000/day Qualifications ~ A Bachelor's Degree... ..., and SOLID principals ~ Hands on experience with .NET, including C#, ASP.NET MVC, and ASP.NET WEB API ~ JavaScript....netOpen Systems Technologies
New York, NY1 day ago- ...Software Engineer - C# Developer - Capital Markets Hybrid in NYC - Contract W2 Only NO THIRD... ...objectives of the development team. Senior Software Engineer is responsible for assisting... ...and Skills • Be well-versed in C#/.Net and/or C++ and have an active interest in....netContract workWork experience placement
BAMM Staffing
New York, NY1 day ago - ...and on the other hand, there is the standard of excellence. Our Developers balance the need for speed and functionality with their... ...understanding. Responsibilities We are looking for a hands‑on C#/.NET Developer who is ready to work with our team in developing and....netTemporary work
IPsoft
New York, NY2 days ago - ...Senior Developer Job Location: NYC, NY (Local talents highly preferable as this is Day 1 onsite role with no exceptions) • 5-8 years .Net core experience • Must have NoSQL Database experience • 4... ...TypeScript, Angular or jQuery • C# development experience • API...Senior.netWork experience placementLocal area
Zortech Solutions
New York, NY2 days ago $60k
...oriented approach enables us to help clients develop cost‑effective and robust solutions from... ...MUST HAVE CURRENT EXPERIENCE WITH C# AND Fixed Income/Commodities Front Office... .../ Knowledge Google ProtoBuf, protobuf-net Tibco RV/RVRD/TMA Experience with SDLC....netPermanent employmentTemporary workDellfor Technologies Defunct
New York, NY4 days ago$100k - $105k
...C# Developer PositionWe are hiring a skilled C# developer to represent our team! This position... ...New York city.ResponsibilitiesCreating C#.NET solutions for the enterprise.Using the .NET... ...inside the company.Reporting to senior team members on project status and advancements....netWork at officeWork from home3 days per weekInfotron Solutions
New York, NY2 days ago- Gainwell Technologies is seeking a skilled C# .Net Developer to join our remote-friendly team serving United States health programs. You will work across the full SDLC, translating requirements into robust, maintainable code and collaborating with analysts, QA, and product....netRemote job
$135k
...Free food & snacks Health insurance Paid time off Vision insurance Requirements: ~9+ years of experience in C#.NET Framework and SQL Server Development. ~ Experience building, integrating, maintaining, and supporting Trading Systems. ~ Strong...Senior.netWork from homeFlexible hoursInfotron Solutions
New York, NY5 days ago- ...Senior .Net Software Developer Location: Montreal, Canada (onsite) Job Type: Contract As a hands-on Senior Developer/Engineer... ...of application development experience with .NET and C#. ~ Deep expertise in enterprise SaaS and cloud platforms...Senior.netContract work
Inficare
New York, NY5 days ago $110k - $140k
...incarcerated women in New York State to execute a search for their Senior Director of Development and Communications. \n \n Senior... ...$600,000, Corporate: $100,000, Foundations: $1,438,000, Events: net positive performance. \n ~40+ substantive major-donor moves/quarter...Senior.netHudson Ferris
New York, NY12 days ago- ...opportunity at a leading fund where industry experience is not needed. They are looking for a strong and senior developers with the following skills: \n \n \n C#\n .NET \n Cloud, container technologies \n Sql server \n \n \n We'll discuss the details of...Senior.net
Oakridge Staffing
New York, NY6 days ago - Dla naszego klienta poszukujemy kandydatów na stanowisko: Senior .NET Engineer Projekt Tworzenie i rozwój innowacyjnych systemów zarządzania... ...ów AI (Claude, GitHub Copilot). Stack technologiczny .NET, C#, SQL (SQL Server / Azure SQL / MySQL), React / Angular, REST API...Senior.netImmediate start
- ...executive networking. You will run complex multi-stakeholder sales cycles from first conversation to close, landing mid-to-high six-figure first deals with net-new logos while shaping the North American playbook based on field insights and buyer feedback. #J-18808-Ljbffr...Senior.net
theydo.
New York, NY1 day ago - ...Job Title: Senior .Net Software Developer Location: United States (100% Remote) Position Type: Contract Job Summary The Department... ...and maintain enterprise applications using ASP.NET Core, C#, .NET Framework 4.8, JavaScript, CSS, and Kendo UI ....Senior.netContract workWork at officeRemote work
3B Staffing LLC
New York, NY2 days ago - ...Job Description C# .Net Developer \n Investment Banking \n Full Time (175K to 190K ) \n NYC (Midtown) \n \n Must be a US Citizen or Green Card holder!!!!!!!!!! \n No 3rd parties or C2C!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! \n \n About the Role....netFull time
Clear Point Group
New York, NY6 days ago - ...expanding upmarket and internationally.The Opportunity This is a senior, builder-first Customer Success role. Their team believes 80 to... ...function's operating system and be measured on organization-level net revenue retention rather than on traditional account-by-account...Senior.net
talentpluto
New York, NY5 days ago - ...client, a financial services organization in NYC, is seeking a Senior .NET Developer to build and enhance cloud-based applications supporting... ...Agile software development lifecycle Skills Advanced C#/.NET and .NET Core development experience Strong ASP.NET Core...Senior.netHourly payContract work
Kforce
New York, NY2 days ago $90 per hour
...Senior Power Platform Developer Remote (US-based) Contract to hire Up to $90/hr US Citizens only... ...and extending the Power Platform using C# and JavaScript. This is a fully remote... ...development technologies, including .NET and Azure ~3+ years hands-on experience...Senior.netContract workRemote workConspicuous
New York, NY5 days ago$58.2k - $83.2k
...also have comprehensive leadership and technical development academies to help build your skills and capabilities. Summary As a C# .Net Developer at Gainwell, you can contribute your skills as we harness the power of technology to help our clients improve the health and....netFull timeRemote workFlexible hours- ...client, a financial services organization in NYC, is seeking a Senior .NET Developer to build and enhance cloud-based applications supporting... ...software development lifecycle REQUIREMENTS: * Advanced C#/.NET and .NET Core development experience * Strong ASP.NET...Senior.netHourly payContract work
- Cloud and Things is seeking a Senior iOS Application Engineer to design, develop, and maintain the E-Citations iOS app using .NET MAUI and C#. The role focuses on secure, high-performance mobile solutions with offline-first capabilities and robust REST/GraphQL integration...Senior.netRemote work
- A global information technology firm is seeking a Net Developer for a 2+ years contract in Warren, NJ. The ideal candidate will have 3-5 years of experience in software development, proficient in VB.NET, CSharp.NET, and other related technologies. The role involves designing...Senior.netContract work
- ...Premier partners from onboarding to expansion Develop and execute high-impact strategies for partner retention and net revenue retention Act as a trusted advisor to agencies... ...Proven ability to negotiate with C-suite and senior executive stakeholders Strong presentation and...Senior.netWorldwide
Automattic
New York, NY4 days ago $100k - $130k
...Job Title: .NET / Oracle Developer – MS SQL Developer Next Generation, Inc. (NGI), an Equal Opportunity Employer, is seeking a highly skilled... ....NET technologies. • Strong programming skills in ASP.NET (C#), HTML, CSS, XML, and Visual Studio .NET. • Proficiency with...Senior.netTemporary workWork experience placementNext Generation
New York, NY1 day ago- Senior .NET Developer - Middle Office Trading Job Title: Senior .NET Developer - Front Office Trading Experience: 8-12+ Years Domain: Capital... ...environment. The ideal candidate will possess strong expertise in C#, .NET, Microsoft SQL Server, Multi-threading, Asynchronous...Senior.netPermanent employmentWork at office
- ...generation cloud-native, AI-driven platform, we are looking for a Senior Staff Engineer to help architect and build scalable, resilient... ...Stack Application: React, TypeScript, Node.js, Python, C#/.NET Data & Messaging: PostgreSQL, SQL Server, Redis, Kafka Cloud...Senior.net
Aspect Software
New York, NY5 days ago - ...global design practice that are looking for a Senior Architect to join its NYC team, working... ...to contribute to significant airport developments, with involvement spanning early concept... ...principles, with experience on LEED-certified or net-zero-carbon projects advantageous \n ~...Senior.netFull time
The Crowd
New York, NY6 days ago
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