Senior Software Engineer

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Senior Software Engineer

Full Time

Remote, US

+1 More Locations

30+ days ago

Requisition ID

1108

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About the Role

We are seeking an experienced Senior Software Engineer to join our software development team working on mission-critical financial technology applications. You will be responsible for developing and maintaining large-scale invoice processing, accounts payable, and document management systems serving enterprise clients across multiple industries. The ideal candidate brings hands-on experience in financial or B2B software, with a strong understanding of AP/AR workflows, Payments systems, and broader Finance domain processes.

Finance Domain Experience - Strongly Preferred

Given the nature of our core products — invoice processing, vendor payment management, and AP automation — we place significant value on candidates with real-world experience in:

Accounts Payable (AP) and/or Accounts Receivable (AR) software development or operational systems

Payments platforms including ACH, wire transfer, virtual card, and payment processing workflows

Invoice processing, purchase orders, remittance processing, and B2B document exchange (EDI)

Financial Technology (FinTech) products serving enterprise or mid-market clients

ERP integrations — SAP, Oracle, NetSuite, QuickBooks, Microsoft Dynamics, or similar platforms

Audit trail design, financial data integrity, and compliance-aware software development

Spend management, treasury operations, or general ledger (GL) system connectivity

Technical Skills

Core .NET Technologies

Advanced C# and VB.NET proficiency — mixed-language enterprise codebase

.NET Framework 4.6–4.8 — extensive experience with legacy .NET Framework applications

.NET 6/7/8 — modern .NET development for new platform initiatives

ASP.NET Web Forms and MVC — maintain and enhance hybrid web applications

ASP.NET Web API — build and maintain RESTful services and integrations

Entity Framework — data access and ORM patterns (Code First and Database First)

Windows Services — background processing services for document workflow automation

Web Technologies

Blazor Server — build modern web UIs for SaaS platform

AngularJS — maintain existing frontend components

JavaScript/jQuery — legacy frontend maintenance with jQuery UI and validation

XSLT transformations — XML-based templating systems

Telerik UI Components — enterprise UI components for legacy and modern applications

OAuth 2.0 & JWT — modern API authentication and security

Database & Data Technologies

SQL Server — complex stored procedures, functions, and database design

Database-first development — schema changes, migrations, and performance optimization

ADO.NET — custom data access patterns and legacy integration

Amazon S3 — cloud document storage and management

Architecture & Integration

Multi-tenant SaaS architecture — customer-specific configurations and customizations

EDI processing — Electronic Data Interchange (810, 850, 855, 856 transaction sets)

File processing — CSV, XML, fixed-width file imports/exports

SOAP/REST web services — external system integrations

Payment processing integrations — financial system connectivity

DevOps & Infrastructure

MSBuild and Visual Studio — build automation and deployment

IIS deployment and management — Windows-based web application hosting

Git version control — large enterprise codebase management

PowerShell scripting — deployment and automation tasks

Azure DevOps Pipelines — CI/CD with YAML configurations and automated testing

NuGet Package Management — private Azure Artifacts feeds and dependency management

Preferred Qualifications

Bachelor's degree in Computer Science or related discipline.

5+ years of .NET development experience

Finance/FinTech background — hands-on AP, AR, Payments, or financial software experience strongly preferred

Strong SQL Server database design and optimization skills

Self-motivated with ability to navigate complex, large codebases

Strong problem-solving skills for debugging and optimizing enterprise applications

Excellent communication skills for collaborating with business stakeholders and QA teams

Experience with legacy modernization and gradual migration strategies

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