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OpenNova
OpenNova

Senior Software Engineer

Location

Remote restrictions apply
See all remote locations

Salary Estimate

N/AIconOpenNewWindows

Seniority

Senior

Tech stacks

Azure
Amazon
Testing
+38

Visa

U.S. visa required

Contract role
3 days ago
Apply now

Job Title: Senior .NET Engineer / Dev Lead / Architect (Contract – Multiple Openings)

Location: Remote (Preference for U.S.-based or strong overlap with EST)

Type: Contract (Initial 1–2 months with potential for extension)

Start Date: ASAP

About the Project:

A large-scale modernization effort is underway for a high-traffic digital payments platform used by thousands of end-users daily. This system currently generates millions in annual revenue and is undergoing urgent re-architecture due to recent stability and performance challenges. Legacy components—including outdated CRM systems and on-premise infrastructure—are being replaced with modern, scalable .NET-based solutions designed to be infrastructure-agnostic across AWS and Azure.

This is a critical, time-sensitive project, and we are seeking elite talent who can hit the ground running, solve problems proactively, and raise the engineering standard across the board.

Open Roles:

We are hiring across three key tiers:

1. .NET Architect

o Own and drive architecture for backend services and integrations

o Deliver sequence diagrams, system flows, and rationale for architectural decisions

o Evaluate tradeoffs across Azure and AWS ecosystems, ensuring performance and scalability

o Define technical direction with clarity and documentation

2. Dev Lead / Senior Engineer

o Lead sprint planning, unblock junior team members, and provide technical oversight

o Be the bridge between onshore and offshore teams

o Guide delivery quality and ensure architectural alignment

o Write production-grade code, drive PR quality, and enforce development best practices

3. Individual Contributor (Senior .NET Engineer)

o Contribute to rewriting legacy APIs using .NET 8

o Assist in data migration, app stabilization, and load testing

o Troubleshoot blockers independently and move quickly through deliverables

o Work closely with leads and architects to deliver key modernization goals

Core Tech Stack:

  • .NET 8 (migration from legacy .NET Framework 3.5 / 4.x)
  • Azure + AWS (infrastructure agnostic deployment)
  • PostgreSQL + MySQL
  • REST APIs, Microservices
  • CI/CD tools, Git, Visual Studio
  • (Bonus) Experience with Kubernetes, Dynamics CRM, or legacy enterprise authentication flows (e.g., ADFS)
  • C# (.NET Framework 4.x, .NET Core, .NET 6/7/8)
  • RESTful API development
  • MVC architecture
  • SQL Server
  • Entity Framework
  • Visual Studio
  • Azure DevOps
  • IIS
  • Unit, Integration, and Functional Testing
  • Atlassian Suite (Jira, Confluence, BitBucket)
  • Azure Cloud Services
  • Docker

Key Traits We’re Looking For:

· Strong ownership and ability to deliver without hand-holding

· Excellent communication with distributed teams

· Proven experience working with blended onshore/offshore teams

· Experience working under high urgency / business-critical environments

· Strategic mindset for architecture + tactical ability to ship code

Contract Details:

  • Initial contract is 1–2 months, focused on a tightly scoped modernization effort
  • Clear deliverables include API rewrites, architectural design, sequence diagrams, data migration, and stabilization
  • Opportunity to extend into broader work based on performance

About OpenNova

🔗Website
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