Mid/Senior .NET Software Developer

🕒 4 days ago

🇺🇸 United States – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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HeadSpin

WebsiteLinkedInAll Job Openings

201 - 500 employees

💼 Consulting

🏥 Healthcare

📦 Logistics

Consulting • Healthcare • Logistics

HeadSpin is a comprehensive digital experience platform specializing in the optimization and testing of mobile apps and digital media. The company provides an automated and manual testing platform powered by data science insights, enabling easy and extensive end-to-end automation of the quality assurance (QA) process. HeadSpin offers regression intelligence, audio-visual testing, and continuous app performance monitoring using synthetic data. Its platform supports teams like DevOps, Engineering, and Site Reliability Engineering (SRE) by ensuring apps' optimal performance and superior digital experiences. Trusted by enterprises worldwide, HeadSpin accelerates development cycles, reduces production issues, and offers AI-enabled insights for quality improvement.

📋 Description

• Design, develop, test, and maintain integration features within the .NET-based Services Center • Build service connectors, data transformation pipelines, and vendor-facing APIs • Write clean, well-tested C# code and contribute to peer code reviews • Build and maintain SQL Server queries, stored procedures, and data models • Implement and maintain third-party vendor integrations and accurate bidirectional data exchange • Diagnose and resolve defects across various environments • Partner with senior engineers on integration design and architecture • Contribute to reliability, retry patterns, error handling, and observability for non-interactive services • Contribute to integration documentation, data mapping references, automated testing, and engineering process improvements • Collaborate with product, QA, and senior engineers within a small Agile team

🎯 Requirements

• 5+ years of professional software development experience on the Microsoft technology stack • Proficiency in C# and the .NET framework / .NET Core • Solid experience designing and consuming web APIs and working with external vendor specifications to implement reliable data exchange • Working knowledge of SQL Server, including writing performant queries and stored procedures • Demonstrated ability to work independently as a self-starter and drive tasks to completion • Experience working in Agile team structures • Strong problem-solving, communication, and collaboration skills • Experience building or maintaining distributed, high-throughput systems where reliability and performance are non-negotiable • Demonstrated experience with performance profiling, optimization, and tuning • Hands-on experience implementing third-party vendor integrations, including interpreting API documentation, handling authentication schemes, and managing field-level data mapping • Exposure to Redis for caching and distributed data • Experience developing and deploying workloads on Microsoft Azure • Experience contributing to large enterprise applications • Curiosity and willingness to dig into unfamiliar parts of a large codebase • Self-starter attitude and ability to take ownership of tasks • Care for readable code, sensible tests, and thoughtful design

🏖️ Benefits

• Full-time employment • Remote work