Senior Back-End Developer, .Net

Job not on LinkedIn

🕒 August 21

🇵🇹 Portugal – Remote

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 17%

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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Newfire Global Partners

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2016

💼 Consulting

🏥 Healthcare

📣 Marketing

Consulting • Healthcare • Marketing

Newfire Global Partners is an American IT services and advisory firm (founded in 2016 in Boston) that provides talent augmentation, software engineering, data & analytics, and AI/ML advisory to enterprise and investor clients. The company offers multidisciplinary engineering, product, and marketing teams, technical due diligence for VC/PE, data platform optimization, and an internal ML tool (Novel Heat) to improve code quality and Scrum velocity. Newfire operates across the Americas, Europe, and APAC with a 24x5 follow-the-sun delivery model and focuses on sectors such as digital healthcare, fintech, cybersecurity, and education technology.

📋 Description

• Design and build integrations between the ERP, internal applications, and third-party vendor systems using SFTP, APIs, and message queues • Develop and maintain .NET applications and services across the Azure estate • Diagnose and resolve SQL Server performance problems in production, including deadlocks, timeouts, and slow queries • Harden database schemas and indexing to prevent recurring performance issues • Build and maintain Azure Logic Apps, App Services, and Azure SQL workloads • Onboard new vendors onto the integration platform • Engineer scheduled and batch jobs for production-grade reliability, including failure handling, monitoring, and atomicity • Consolidate duplicated legacy logic and retire obsolete code • Translate finance, inventory, and order-management workflows into reliable technical solutions • Establish tests and documentation for owned systems • Participate in code reviews and pod ceremonies • Triage and resolve production incidents across the enterprise systems estate • Participate in hiring processes by serving on interview panels

🎯 Requirements

• 7+ years of backend engineering with strong C# / .NET, including .NET Framework • Deep Azure development experience including Logic Apps, App Services, Azure SQL, and surrounding PaaS services • Strong T-SQL and SQL Server fundamentals, including query and index optimization, execution plan analysis, deadlock and timeout diagnosis, blocking, and concurrency • Experience with flat-file exchange over SFTP, REST and SOAP API integrations, and message-queue-based integration • Experience integrating with third-party vendor systems • Full ownership of shipped work, including testing • Ability to document integration contracts, data flows, and decisions • Fluency with AI-assisted development workflows • Comfort improving live production systems, including legacy code • Proactive communication and familiarity with Agile/Scrum • Excellent spoken and written English • Ability to work with significant US Eastern Time overlap • Legal work authorization in the country of residence, verified by documentation