Senior Software Developer, CRM Platform
Posted Updated
Summary
Remote W2 contract role (12+ months, possible extension) building and supporting a client's Insightly CRM platform: full-stack C#/.NET Framework 4.8 MVC development with AWS services, plus CI/CD, monitoring, code reviews, and release/on-call rotations. US citizens or green card holders only.
Position Title: Senior Software Developer, CRM Platform on W2 only
Location: Remote
Duration: 12+ months with possible extension.
Work Authorization: GC/Citizen only
Job Summary:
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This is a backfill role in the CRM engineering team, reporting to the client’s engineering leadership. -
Build and support the Insightly CRM platform using MVC, .NET Framework 4.8, and AWS services. -
Work in an existing codebase from the first week, reading unfamiliar code and making safe changes rather than focusing on greenfield design.
Responsibilities:
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Design and implement scalable, maintainable features and fixes for the CRM platform. -
Write modular, testable code and provide thoughtful code reviews. -
Build and support solutions using AWS services such as Lambda, S3, EC2, and DynamoDB. -
Work across service boundaries and understand system dependencies. -
Use TeamCity, Octopus, Datadog, Raygun, Papertrail, and CloudWatch to support safe deployments. -
Apply web application security and performance practices, including mitigation of common vulnerabilities. -
Break complex problems into well-scoped tasks and provide accurate estimates. -
Support onboarding and knowledge sharing for newer developers through code reviews and pairing, without people management responsibilities. -
Participate in two-week Release Developer and Production On-Call rotations once production access is approved. -
Until production access is approved, focus on features, code reviews, and business-hours support. -
Coordinate release builds, ensure changes merge on time, and deploy to production as the Release Developer. -
Respond to PagerDuty and Slack alerts as the Production On-Call first responder, with a 15-minute response time before escalation to engineering leadership. -
Follow existing playbooks for alerts; some alerts require monitoring only.
Required Skills:
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5+ years of professional software engineering experience delivering production software. -
Strong full-stack experience with C# and MVC, including .NET Framework 4.8 and JavaScript frameworks. -
Hands-on AWS experience with at least two of Lambda, S3, EC2, and DynamoDB. -
Strong understanding of object-oriented programming, software architecture, and design patterns. -
Experience with CI/CD pipelines, production monitoring, and DevOps practices. -
Experience with 24/7 on-call rotations and production incident response. -
Experience working in a large existing codebase written by others. -
Experience mentoring or leading less experienced developers. -
Ability to work a full Pacific Time business day with the team.
Nice to Have
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TeamCity, Octopus, PagerDuty, and Datadog experience. -
Experience modernizing legacy .NET Framework code toward modern .NET. -
Experience with Windows-hosted .NET applications alongside AWS services. -
CRM or B2B SaaS platform experience. -
Experience designing APIs alongside a mobile team.