Senior .NET & AWS Integration Engineer

Nix; United States; Remote; USD 140,000 - 180,000; Full time

Benefits offered by this job

Flexible working format - remote, офис

Competitive salary

Personalized career growth

Mentorship program & trainings

Tech talks & centers of excellence

Active tech communities

Job summary

Nix is seeking a Senior Integration Engineer to join its client squad, working on Workday-to-Data-Lake and Marketplace-to-HubSpot integrations. You will design and deliver .NET-based services on AWS, implement robust APIs, and build event-driven data flows within an established team.

You will collaborate with the Tech Lead, document architectures, and ensure data quality and secure handling of financial/operational data. Flexible remote options are offered.

Qualifications

• 3+ years of experience in AWS/cloud and .NET Core development, ideally in an integration-focused engineering role.
• Proven experience building .NET-based integration services and microservices.
• Hands-on AWS/cloud experience across development, deployment, monitoring, secure configuration, and operational support.
• Strong API integration expertise: authentication, data contracts, pagination/batching, rate limits, retries, error handling, and idempotent processing.
• Solid grounding in event-driven and asynchronous integration patterns.
• Experience with data ingestion and integration pipelines, including historical loads, incremental feeds, scheduling, and webhooks.
• Track record of ensuring data quality, reconciliation, and secure handling of financial or operational data. Strong collaboration, documentation, and knowledge-sharing skills within an established engineering team; excellent verbal and written English skills.
• Nice to have: HubSpot API integration experience; Workday API or finance/ERP integration experience; Data Lake ingestion and structured data landing patterns; CRM and operational-workflow integrations; Experience extending or aligning with an existing reference architecture.

Responsibilities

• Design, build, and maintain .NET-based integration services and microservices supporting the Workday-to-Data-Lake and Marketplace-to-HubSpot initiatives.
• Develop, deploy, monitor, and operationally support cloud solutions on AWS, ensuring secure configuration throughout.
• Implement robust API integrations covering authentication, data contracts, pagination/batching, rate limits, retries, error handling, and idempotent processing.
• Build event-driven and asynchronous integration flows, including webhooks, scheduling, historical loads, and incremental data feeds. Ensure data quality and reconciliation across integration pipelines, with clear source-of-truth ownership and secure handling of financial and operational data.
• Partner with the squad's Tech Lead and team members to align with the existing reference architecture, priorities, and delivery plans.
• Produce clear technical documentation and actively share knowledge within the engineering team.
• Maintain skill overlap with the second integration engineer across both solutions to ensure delivery continuity.

Skills

AWS Cloud

NET Core

Integration engineering

API integration

Event-driven design

Documentation

English communication

Tools

HubSpot API integration

Job description

Nix is seeking a Senior Integration Engineer to join its client squad, working on Workday-to-Data-Lake and Marketplace-to-HubSpot integrations. You will design and deliver .NET-based services on AWS, implement robust APIs, and build event-driven data flows within an established team.

You will collaborate with the Tech Lead, document architectures, and ensure data quality and secure handling of financial/operational data. Flexible remote options are offered.