Senior Backend Engineer, .Net

Job not on LinkedIn

November 21

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Newfire Global Partners

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B2B • Artificial Intelligence • Fintech

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.

501 - 1000 employees

Founded 2016

🤝 B2B

🤖 Artificial Intelligence

💳 Fintech

📋 Description

• Design and develop high-performance backend services using .NET 8+ and ASP.NET Core • Architect and implement state-driven workflow engines with rules-based configuration systems • Build and maintain event-driven architectures using message bus patterns (Azure Service Bus, RabbitMQ, or similar) • Develop and optimize complex database solutions using MS SQL Server. • Design microservices architectures with proper service boundaries and inter-service communication patterns • Participate in implementing CI/CD pipelines and maintain code quality standards in Azure DevOps (ADO) • Collaborate with cross-functional teams to deliver scalable, maintainable solutions

🎯 Requirements

• 5+ years of professional experience building backend services / APIs, with at least **2+ years working with Nest.js** in production. • Deep proficiency in **TypeScript**; solid understanding of JavaScript core. • Strong design skills in API architecture: REST + possibly GraphQL / WebSocket where needed. • Experience with SQL and/or NoSQL databases; schema design, query optimization, migrations. • Experience building modular systems / microservices. • Thorough experience with testing (unit, integration, mocks, error paths). • Strong skills in version control (Git), code reviews, and CI/CD pipelines. • Good understanding of cloud deployments (e.g., AWS, Azure, or comparable) and shipping services to production with monitoring, logging, alerting. • Familiarity with containerization (Docker) and orchestration is a plus. • Excellent problem-solving skills, ability to debug complex issues in production. • Strong verbal and written communication skills; ability to articulate trade-offs, document work. • Technical Leadership (only for Lead candidates): ** • Proven ability to mentor and guide development teams • Experience conducting code reviews and establishing coding standards • Track record of making architectural decisions for enterprise systems • Ability to evaluate and recommend new technologies and approaches • Strong documentation and communication skills • Nice to Have: ** • Previous track record with US-based client • Understanding of healthcare domain • Microsoft certifications (Azure Developer Associate, Azure Solutions Architect) • Experience with distributed tracing and observability (Application Insights, Seq, ELK) • Knowledge of performance profiling and optimization tools • Contributions to open-source projects • Speaking experience at technical conferences or meetups