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ESB Technologies

Senior .NET Engineer

This role is a Senior .NET Engineer focused on eCommerce, offering a 5-month remote contract with a pay rate commensurate with experience. Key skills include .NET development, API integration, and payment gateway expertise, with a preference for candidates experienced in eCommerce platforms.
🌎 Country
United States
🏝️ Location
Remote
📄 Contract
Unknown
🪜 Seniority
Mid-Senior level
💰 Range
Unknown
💱 Currency
$ USD
💸 Pay
Unknown
🗓️ Discovered
August 19, 2025
📍 Location detailed
United States
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🧠 Skills
#Order Management #Stripe #Payment Gateway Integration
Role description
Job Description – Senior .NET Engineer (eCommerce Focus) Role: Senior .NET Engineer (eCommerce Focus) Location: Remote (preference for EST overlap) Engagement: Contract – 5 months (through end of year, strong extension potential) Start Date: ASAP Company Overview: Our client is a national leader in smart mobility and digital parking solutions, operating in 2,000+ locations across North America. They are investing heavily in modernizing digital platforms, including In Park Now, a next-gen eCommerce parking and shopping platform. This is a high-visibility initiative where you’ll work with modern .NET technologies, cloud platforms, and complex payment integrations. Project Overview You will join a critical modernization and go-live effort for In Park Now, focusing on backend/API ownership and third-party integration support. The UI is being delivered by a vendor; your role is to stabilize and enhance backend systems to meet aggressive go-live deadlines. Key Responsibilities • Rewrite and stabilize backend APIs in .NET 8 • Integrate and optimize payment gateways (Stripe, PayPal, Authorize.net, etc.) • Enhance shopping cart, checkout, and order management flows • Improve the pricing engine and transaction reliability • Ensure cloud-agnostic architecture decisions across Azure & AWS • Troubleshoot and resolve vendor integration issues as technical liaison • Support high-stakes deadlines and public-facing go-live deliverables Tech Stack • Languages & Frameworks: C#, .NET 4.x → .NET 6/7/8, MVC, REST APIs • Cloud & DevOps: Azure, AWS, Docker, Azure DevOps, CI/CD • Databases: SQL Server, PostgreSQL, Entity Framework • Tools: Visual Studio, Jira, Confluence Required Qualifications • 7+ years of hands-on .NET engineering experience • Strong background in API development and system integrations • Proven experience with eCommerce platforms and payment gateway integrations • Familiarity with PCI compliance standards • Experience with SQL Server & PostgreSQL • Strong communication skills for cross-team/vendor collaboration • Ability to thrive in fast-paced, deadline-driven projects Preferred Qualifications • Experience with .NET 8 migration or modernization projects • Prior work on pricing engines, shopping carts, or order management • Experience in Azure & AWS hybrid architectures • Previous involvement in large-scale go-live projects