> Markdown version of [/jobs/ext/3950115-senior-fullstack-software-development-engineer](https://www.wearedevelopers.com/jobs/ext/3950115-senior-fullstack-software-development-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Fullstack Software Development Engineer

- **Company:** Remitly, Inc.
- **Location:** Seattle, WA, United States
- **Experience:** Expert
- **Salary:** $180,000.0 - $225,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Microsoft Azure, Cloud Computing, Code Review, Software Design Patterns, Programming Tools, Python (Programming Language), Software Engineering, TypeScript, ReactJS, Claude Code, Backend, Kotlin, Information Technology, React Native, Golang, Microservices
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-fullstack-software-development-engineer-seattle-wa--c18827a0-f6da-4ffa-84f0-7579df750248

## About the Role

Software Development, Software Engineering, Business Growth, Financial Services, Software Development, Customer Relations, Software Engineering, Product Design, Technical/Engineering Design, Technical Strategy, * 6+ years of professional software development experience, including experience building and operating systems end-to-end.

 * Strong computer science, web, and native app fundamentals, with solid knowledge of design patterns.
 * 3+ years of hands-on React or React Native development experience, and experience building customer-facing experiences at product scale.
 * Proficiency in one or more modern backend languages - TypeScript, JavaScript, Java, Kotlin, or Go.
 * Experience using AI tools throughout your own software development workflow (e.g., Claude Code or similar).
 * Experience with distributed, large-scale systems and a working understanding of service-oriented or microservices architecture.
 * Familiarity with cloud platforms such as AWS, GCP, or Azure, including managed services.
 * Excellent collaboration skills and a track record of working cross-functionally with product, design, and analytics.
 * Bonus: experience in FinTech, payments, or another regulated industry where reliability, security, and compliance shape engineering decisions.

## Description

We're hiring Senior Software Development Engineers (SDE3) across multiple engineering teams in our Seattle office. This is a batch hiring effort spanning teams throughout the company - including groups like USA Regional Experiences and High Value Send Experience, among others - so your background and interests will help determine the best team fit during the interview process. Every team shares a common thread: full-stack ownership of customer-facing product experiences, high engineering standards, and a mandate to build the next generation of trusted, borderless financial services.

As a full-stack Senior SDE, you'll own ambiguous, high-impact problems end-to-end - from customer-facing web and mobile experiences down through the backend services and systems that power them. You'll partner closely with product managers, designers, analysts, and fellow engineers to translate customer needs into scalable, reliable software, while helping shape the technical direction and engineering culture of your team.

You Will:

 * Lead technical design and architecture for complex, often greenfield problems - breaking ambiguity into clear technical strategies and measurable outcomes.
 * Build full-stack, customer-facing features spanning web and mobile front ends (TypeScript, React or React Native) and backend services (Java, Kotlin, Go, or Python).
 * Partner with product managers, designers, analysts, and other engineers to gather requirements and deliver scalable, high-quality software with a customer-centric mindset.
 * Ship well-tested, observable, well-documented, efficient, and resilient systems that meet reliability and latency expectations.
 * Use AI-powered development tools throughout the software development lifecycle to deliver faster while maintaining quality and security standards.
 * Drive improvements to team processes, shape cross-team technical designs, and divide complex features into components that can be parallelized for timely delivery.
 * Strengthen engineering culture by mentoring peers, leading technical discussions, conducting code reviews, participating in interviews, and supporting onboarding.
 * Participate in an on-call rotation to support the reliability of your team's services.
 * Report to the Engineering Manager of your team.