Senior Full-Stack Software Engineer, Platform Modernization, Laravel/Angular (Contract, 6-9 months)

Reporting to:

Head of Engineering, collaborate with CEO

Engagement:

6 months, renewable to 9. 1099/C2C direct. Full-time (~40 hrs/wk).

Location:

Remote (Americas time zone)

About ServiceFactor

ServiceFactor is a Vertical SaaS serving MEP contractors. We utilize a modern Laravel 11 + Angular 18 stack on AWS Fargate with PostgreSQL and Node.js. Our five-person engineering team is growing, and we have live customers and real revenue. We have a clear mandate from the CEO to modernize the platform for weekly releases and higher velocity over the next 12 months.

What you'll do

• Create a modernization plan for an existing Laravel backend. This plan may include updating existing classes and functions or determining whether certain modules need to be rebuilt from the ground up.
• Design an incremental refactor strategy (strangler-pattern / modular monolith) that enables shipping features while paying down technical debt.
• Design optimal software architecture for application modernization.
• Determine a QA automation plan (PHPUnit, characterization tests, integration tests) to be built in tandem with app modernization.
• Break the modernization work into Epics and Stories in Jira, then take personal ownership of a significant share of those Epics while collaborating with our existing US/India team.
• Advise on Q4 frontend modernization (Angular 18 → 21, Bootstrap removal, PrimeNG upgrade) and AWS/security modernization, with the option to co-lead execution if there’s mutual fit.

Must-haves

• 12+ years building production web platforms.
• Direct experience leading a monolith refactor on a live SaaS (not greenfield, not a side project), ideally using strangler-pattern or domain/module extraction.
• Strong Laravel experience on non-trivial codebases (not just small CRUD apps).
• QA automation design, such as PHPUnit / test harness design. Experience designing QA automation strategy and with different types of QA automation: unit testing, integration testing (including fixtures), real testing, and others.
• Significant experience with data modeling and database design (PostgreSQL a plus).
• Proven history of transitioning a platform from "scary to touch" to "confident to change".
• Release engineering: feature flags, blue/green, canary, CI quality gates.
• Hands-on AWS experience; ECS/Fargate strongly preferred.
• Comfortable mentoring and working with other team members, communicating engineering design, and receiving peer reviews and constructive feedback.

Nice-to-haves (any one is a tiebreaker)

• Deep Angular experience (v15+), including at least one significant version-to-version migration on a live app (ideally 18 → 20+).
• QuickBooks Online / Desktop integration.
• Experience with Strangler-pattern / domain-extraction instincts.
• Field-service / trades / MEP domain.
• Payments platform work.
• Kotlin Multiplatform exposure.
• PostgreSQL 14+ tuning at scale.
• Experience removing legacy CSS frameworks (e.g., Bootstrap) in favor of modern Angular/PrimeNG or design-system-driven approaches on production apps.
• Experience modularizing a PHP/Laravel monolith (modular monolith, domain modules, or similar patterns).

Pay:

$80.00 - $120.00 per hour

Application Question(s):

• What hourly rate (in $/hr) are you seeking?

Experience:

• Software Engineering: 10 years (Required)
• Laravel: 3 years (Required)
• Angular: 2 years (Required)
• AWS: 3 years (Required)
• Unit Testing: 3 years (Required)
• SaaS related to Field Services or Accounting: 2 years (Preferred)

Work Location:

Remote