Fullstack Engineer
Location
Virginia
Posted
2 days ago
Salary
0
Seniority
Mid Level
Job Description
Fullstack Engineer
Koalafi
• Implement microservices and event-driven workflows to integrate Koalafi's systems with a third-party loan servicing platform • Build and maintain REST APIs that support loan origination, payment processing, and customer servicing operations • Navigate and contribute to existing internal services where the NPIL product intersects with current Koalafi systems — reading unfamiliar code, understanding its intent, and making clean, well-scoped changes • Develop frontend components in React/TypeScript to support customer-facing and internal tooling as needed • Write code that is testable, observable, and built to last — not just built to ship • Work closely with the Tech Lead on system design and integration architecture • Partner with Product and Compliance to understand requirements and translate them into reliable, compliant implementations • Participate in code reviews — both giving and receiving feedback with the goal of raising the bar, not just checking a box • Engage actively in sprint ceremonies: planning, retros, standups — contribute to the team's rhythm, not just your own ticket • Implement monitoring and alerting at integration points so issues surface before customers notice them • Support audit logging and data reconciliation requirements inherent to a regulated financial product • Identify and flag technical risk early — bad news early is always better than bad news late • Leverage AI development tools to move faster and stay consistent with team patterns
Job Requirements
- 2–4 years of professional software engineering experience
- Hands-on experience building backend services in Golang
- Working knowledge of REST APIs, HTTP/JSON patterns, API authentication including bearer tokens and OAuth flows and API Testing tools like Postman, HTTPPIe
- Experience building or contributing to frontend applications; React/TypeScript preferred
- Familiarity with AWS, Kubernetes, and cloud-native deployment patterns
- Familiarity with observability concepts and tools like Dynatrace
- Familiarity with AGILE/Scrum principles, ceremonies and JIRA
- Solid testing instincts — unit, integration, and contract testing aren't afterthoughts for you
- Comfort navigating and contributing to unfamiliar codebases — not just greenfield builds
- Strong communication skills: you can explain what you're building and why, not just how
Benefits
- Comprehensive medical, dental, and vision coverage
- 20 PTO days + 11 paid holidays
- 401(k) retirement with company matching
- Student Loan & Tuition Reimbursement
- Commuter assistance
- Parental leave (maternal + paternal)
- Inclusion and Associate Engagement Programs
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