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.Net Backend Developer

Apolis

  • New York City, NY
  • 2 days ago
  • Remote
  • $35–$40 Per Hour

Highlights

Relational Databases & SQL: Strong experience in relational data modeling (PostgreSQL, MySQL, or SQL Server), complex joins, foreign-key relationships, index optimization, and data migration scripting. State Machine & Workflow Automation: Develop scalable workflow engines and business rule decision trees governing automated verification gates ( Auto-Approved , Auto-Declined , Pending Review ) and CSR portal operations.

Numbers & Facts

LocationNew York City, NY (
Remote
)
IndustryComputer/IT Services
Salary$35–$40 Per Hour
Company Size500 to 999 employees
Websitehttps://www.apolisrises.com/

Description

  • Job Title: .Net Backend Developer

  • Location : Remote

    Position Overview

    Key Responsibilities

  • API & Service Architecture: Design, build, and maintain production-grade, secure RESTful APIs and microservices managing provider hierarchies, billing accounts, and payment lifecycle events.
  • Event-Driven & Webhook Systems: Implement reliable, idempotent event consumers and webhook ingestion pipelines to process asynchronous notifications (e.g., ACH NOC events, banking state changes) with zero data loss.
  • Data Migration & Modeling: Design normalized relational schemas and data transformation pipelines (DTOs, ETL backfills) to seamlessly migrate complex hierarchical records across platforms.
  • Enterprise Integrations: Engineer reliable interfaces with external and internal partners—including CRM case management (Salesforce), tax identification verification (SOVOS), and banking validation services.
  • State Machine & Workflow Automation: Develop scalable workflow engines and business rule decision trees governing automated verification gates ( Auto-Approved , Auto-Declined , Pending Review ) and CSR portal operations.
  • Operational Excellence: Write comprehensive unit, integration, and contract tests, contribute to architecture reviews, and maintain clear API specifications.

  • Required Qualifications

  • 5+ years of professional experience in backend software engineering with statically typed languages (Java, C#, Go, or TypeScript/Node.js).
  • RESTful API Engineering: Demonstrated mastery in designing, versioning, and documenting production REST APIs (handling deep pagination, complex DTO mappings, and high-throughput payloads).
  • Relational Databases & SQL: Strong experience in relational data modeling (PostgreSQL, MySQL, or SQL Server), complex joins, foreign-key relationships, index optimization, and data migration scripting.
  • Distributed Systems & Event Architecture: Hands-on experience with message brokers/event buses (e.g., Kafka, RabbitMQ, AWS SQS/SNS) and designing idempotent consumers for webhook and asynchronous event handling.
  • Enterprise Integration Patterns: Proven background integrating with third-party webhooks, REST/SOAP APIs, and handling retry strategies, circuit breakers, and distributed error handling.

  • Preferred Qualifications

  • Prior experience in FinTech, Payment Processing, or Healthcare Payer/Provider Systems (familiarity with ACH, NACHA rules, NOC codes, TIN/NPI validation, or 835 EDI transactions).
  • Experience integrating with Salesforce APIs (e.g., automated Case and Contact management).
  • Familiarity with secure credential handling, financial compliance, and PII/PHI data privacy standards.

Benefits

Paid Sick Days, Employee Referral Program, Employee Events, Retirement / Pension Plans

About Company

Since 1996, RJT has provided successful SAP, Oracle, and IT consulting solutions and staffing services to clients around the world. The new Apolis brings you the same personalized service fortified with a greater array of IT solutions, global expertise, and cost-management strategies.

We are a global IT consultancy that seamlessly integrates experts and leading-edge solutions into your organization so you can focus on what really matters.

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