Senior .NET Backend Engineer (Modern) · Remote LATAM

Findjobit; United States; Remote; USD 39,000 - 45,000; Full time

Job summary

Findjobit, a US tax-tech company, is rebuilding its core platform using modern .NET on AWS. You’ll own backend services, business rules, and asynchronous workflows, keeping financial data consistent end to end.

You design distributed services, translate tax rules into technical solutions, and support production during tax season while leveraging AI coding agents with careful validation.

Qualifications

• 8+ years in software development with strong .NET/C# experience.
• Experience with EF Core and Dapper.
• Experience with AWS messaging, idempotency and retries.
• Hands-on with Claude Code or similar AI coding agents.
• Strong English, C1 level.

Responsibilities

• Design and build distributed services (SQS, Redis, CQRS, PostgreSQL).
• Translate ambiguous tax and business rules into technical solutions, evaluating trade-offs.
• Support production during tax season.
• Ship with AI coding agents while validating outputs.

Skills

C# / .NET

Async/Await

Dependency Injection

Background Workers

EF Core

Dapper

AWS Messaging & Retries

Claude Code / AI coding

C1 English

Tools

SQS

Redis

PostgreSQL

CQRS

Job description

Join a US tax-tech company rebuilding its core platform with modern .NET on AWS. You'll own backend services, business rules and asynchronous workflows, and keep financial data consistent end to end.

What you'll do

• Design and build distributed services (SQS, Redis, CQRS, PostgreSQL)
• Turn ambiguous tax and business rules into technical solutions, evaluating trade-offs
• Support production during tax season
• Ship with AI coding agents while validating every output

Must have

• 8+ years in software, 4+ recent with modern C#/.NET (async/await, DI, background workers)
• EF Core and Dapper
• Messaging, idempotency and retries on AWS
• Hands-on with Claude Code or similar AI coding agents
• C1 English

Full-time · contractor · 100% remote from LATAM · USD 3,500–4,000/month.