Senior Software Engineer developing backend services integrating Sage Intacct for accounts receivable at Versapay. Collaborating with product teams to deliver secure integration solutions.
Responsibilities
Design, build, and maintain integrations between our platform and Sage Intacct for invoicing, payments, order management, reconciliation, and accounting workflows.
Develop backend services and APIs in C# and .NET to support integration workflows, retries, error handling, and idempotent processing.
Own end to end delivery, including design, implementation, testing, release collaboration, and production support.
Partner with product, engineering, and finance stakeholders to translate business and accounting requirements into scalable technical solutions.
Build secure, maintainable data flows across internal and external systems.
Improve reliability through observability, alerting, and strong operational practices.
Contribute to cloud architecture and deployment patterns in Azure or AWS.
Requirements
7+ years of experience building backend services and applications using C# and .NET.
3+ years of hands-on experience integrating with Sage Intacct ERP.
Strong Sage Intacct experience across core financial and operational modules, including Accounts Receivable, General Ledger, Cash Management, Order Entry, Inventory Control, Taxes, and related platform services.
Strong understanding of integration patterns and data flows, including retries, idempotency, reconciliation, and support.
Experience with Azure or AWS and containerized application environments; Kubernetes experience is a plus.
Demonstrated ability to build secure, scalable, maintainable systems with strong quality and reliability.
Strong problem-solving skills, clear communication, and the ability to work independently in a senior individual contributor role.
Fullstack engineer evolving memodio’s prescribed digital health app with Flutter and Node.js. Building accessible features and regulated medical software for older users worldwide.
Senior Python engineer building reliable web - scraping and data - extraction workflows for Mindrift’s AI technology projects. Processing dynamic websites into accurate, validated structured datasets.
Backend Engineer designing APIs and integration architecture for EvenUp's AI - powered legal - tech platform. Improving client portal experiences and application performance from Toronto or San Francisco hubs.
Staff Backend Engineer building search and recommendation systems for Affirm’s pay - over - time marketplace. Setting technical strategy and scaling distributed backend systems across Affirm’s shopping platform.
Senior backend engineer building reliable MySQL and distributed SQL infrastructure for Affirm’s transparent buy - now - pay - later financial products. Automating databases, migrations, networking, and operations at scale.
Senior backend engineer building and operating distributed database infrastructure for Affirm’s buy - now - pay - later platform. Automating provisioning, migrations, failover, and Kubernetes storage networking.
Backend Engineer building Resend’s SMTP and email transport infrastructure. Designing reliable delivery, throttling, routing, and reputation - aware systems for developers.
Salesforce director leading MuleSoft and enterprise data foundation architecture for customer engagements. Advising CxOs and delivering governed, AI - ready platforms across complex technology environments.
Senior Backend Engineer building scalable backend, ETL, and reporting systems for Commerce7, a winery commerce platform. Modernizing legacy databases and powering data - intensive SaaS APIs.
Principal Engineer shaping Xero’s accounting APIs and AI - ready platform. Leading technical strategy for partner integrations, developer tooling, and reliable financial workflows.