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Senior Software Engineer (.Net)

Not Disclosed

Job Description & Details

The finance‑technology space is booming as banks modernize legacy loan systems and automate payments. Companies need senior engineers who can bridge complex integration platforms with modern .NET services. This contract role offers a chance to lead high‑impact integrations on a critical loan‑IQ platform.

Job Summary

We are seeking a senior‑level .NET Software Engineer to design, develop, and maintain a Loan IQ integration platform focused on payments and downstream systems. The role is contract‑based (12 months) with a blend of onsite and remote work, requiring deep expertise in modern .NET, REST/SOAP services, XQuery, and file‑based integrations.

Top 3 Critical Skills Table

Skill Why it's critical Mastery Level
.NET (Core / modern) Core language for building and extending the integration platform Senior
REST & SOAP APIs Enables communication with payment gateways and downstream services Senior
Loan IQ / Payments integration Domain‑specific knowledge needed to handle loan data and payment flows Senior

Interview Preparation

  1. Explain how you would design a scalable .NET Core service that consumes both REST and SOAP endpoints.
    What the interviewer is looking for: Understanding of abstraction layers, HttpClient vs. WCF, async programming, and error handling.
  2. Describe your experience with XQuery and how you would use it to transform loan data files.
    What the interviewer is looking for: Ability to work with XML, XPath/XQuery syntax, and integration into .NET pipelines.
  3. Walk us through a past project where you integrated a legacy loan system with modern payment APIs.
    What the interviewer is looking for: End‑to‑end integration experience, mapping data models, handling idempotency, and testing strategies.
  4. How do you ensure security and compliance when transmitting payment data over SOAP/REST?
    What the interviewer is looking for: Knowledge of TLS, WS‑Security, OAuth/JWT, PCI‑DSS considerations.
  5. What performance monitoring tools and metrics would you implement for a high‑throughput integration service?
    What the interviewer is looking for: Familiarity with Application Insights, Prometheus, latency, throughput, and error rate metrics.

Resume Optimization

  • Senior .NET Engineer
  • .NET Core
  • RESTful APIs
  • SOAP services
  • XQuery
  • Loan IQ
  • Payments integration
  • File‑based integration
  • C2C contract
  • 10+ years experience

Application Strategy

When reaching out to the recruiter, send a concise email greeting, attach your resume, and clearly highlight your top matching skills. Make sure to mention related skills you possess, such as modern .NET development, REST/SOAP integration, and hands‑on experience with Loan IQ or similar loan‑management platforms. Reference any relevant projects where you delivered payment or downstream system integrations.

Career Roadmap

Current Role Typical Experience Core Focus Next Position
Senior Software Engineer (.Net) 10+ years Complex finance integrations, architecture, mentorship Lead Software Engineer
Lead Software Engineer 12–15 years Technical strategy, cross‑team delivery, stakeholder alignment Engineering Manager
Engineering Manager 15+ years People management, project portfolio, budget oversight Director of Engineering
Director of Engineering 18+ years Organizational leadership, product roadmap, executive partnership VP of Engineering