C# Developer

Dellfor Technologies Open · verified Oct 24, 2026

On-site New York Full-time Mid-level Backend Engineering

At a glance

Mid-level Backend Engineering role at Dellfor Technologies. New York · full-time · $60,000 base.

SalaryStated by Dellfor Technologies

$60,000

Base salary for this role, in USD per year, as published in the posting.

This role, from Dellfor TechnologiesOur estimate for the market: $158,399–$225,725Median $180,000

Below the market median of $180,000 for mid-level backend engineering roles in New York.

Worked out from 47 postings that stated pay, median $180,000. Last updated Oct 21, 2026.

RoleBackend Engineering

SeniorityMid-level

LocationNew York

WorkplaceOn-site

EmploymentFull-time

Base pay$60,000

PostedJun 20, 2017 · 9y ago

Role brief

techroles summary, based on the employer's posting.

What you'll do

Build C# components for trading systems, covering development through release and ongoing support
Develop and maintain database functionality using the listed database technologies
Trace and resolve software issues, while communicating clearly with colleagues
Create C# interfaces with DevExpress or a comparable toolkit, if this matches your experience

What you bring

You have current C# experience and have worked on fixed-income or commodities front-office technology
You bring five to twelve years as a developer, plus a bachelor's degree
You have handled the full software lifecycle, including production support, and have built trading systems and databases
You can triage and debug issues effectively and communicate clearly

Who this fits

This mid-level, onsite role is based in New York and is offered as a contract. It suits a developer with C# and trading-systems experience in fixed-income or commodities front-office technology. Applicants must be authorized to work in the United States.

From the employer

Dellfor Technologies is founded by software professionals with fresh approach, and ideas empowering clients and partners in meeting the unique challenges created by transforming business needs. Our technical, domain expertise across obust solutions. We strive to prove ourselves from project inception through completion... Our technical, domain expertise across industries and process oriented approach enables clients to develop cost effective and robust solutions. We strive to prove ourselves from project inception through completion...

To succeed in the Dellfor technologies, you need exceptional connections - to the right experts, the right opportunities and the right answers. You'll find Dellfor Technologies right in the center of this ever-changing technological world - uncovering opportunities and connecting possibilities.

As a global provider of IT staffing services, Dellfor Technologies connects the very best IT professionals to great opportunities at leading companies. And we do it every single day - for both temporary and permanent assignments and across virtually all industries. We use our insight, flexibility and expanded resources to anticipate the needs of leading tech companies and help them make exceptional connections with top tech talent.

MUST HAVE CURRENT EXPERIENCE WITH C# AND Fixed Income/Commodities Front Office Technology

We are currently utilizing .NET 4.6.1, RX 3.1.1, messaging middleware, DevExpress WinForms/WPF, SQL Server, and Sybase.

Required Skills/Experience/Knowledge:

· Full SDLC experience with a demonstrated support component

· Core C# Development Experience

· Trading systems development experience

· Database development experience

· Excellent triage/debugging skills

· Efficient communication skill

Desired Skills/Experience/Knowledge

· C# meta-programming (reflection, lambda expressions, property descriptors)

· UI C# development with DevExpress or comparable toolkit

· Fixed Income Product Knowledge (Bonds, Treasuries, Swaps, Swaptions, CDS/CDX, FX)

· Commodities product knowledge (Futures, Future Options, Spreads, Physicals)

· Prior experience with OpenLink Endur or Supporting Commodities ETRM applications

· Unit testing (Nunit, RhinoMock)

Helpful Skills/Experience/Knowledge:

· Google ProtoBuf, protobuf-net

· Tibco RV/RVRD/TMA

· Experience with SDLC tools (GitHub/JIRA/TeamCity/Octopus)

· Tidal Enterprise Scheduler