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Full Time

Senior Full Stack Developer/ 2 days ago

All Cares
Attractive
Application ends: 2026-05-21

Quick Summary

This remote Senior Full Stack Developer position at All Cares focuses on backend-heavy fintech systems, requiring at least six years of experience and mandatory background in lending or payments. Key technical requirements include PHP (Laravel), React.js, MySQL, and AWS infrastructure. The role involves building scalable financial architectures and requires alignment with U.S. Eastern Time working hours for real-time platform operations.

About Us

We are a U.S.-based fintech platform, established in 2021, dedicated to modernizing and digitizing the lending and payments ecosystem. Our operations include a multi-lender lending platform, with strategic expansion into payments and broader financial infrastructure.

Our ambitious roadmap features complex underwriting workflows, multi-party application flows, robust role-based systems, advanced API-driven integrations, and sophisticated money movement infrastructure.

We are actively seeking a Senior Full Stack Developer who excels in backend-heavy fintech systems. This role involves building scalable, secure, and API-driven architectures, alongside providing essential front-end development support. If you are passionate about solving real-world financial logic problems, integrating diverse third-party services, and constructing structured systems within AWS, this opportunity is ideal for you.

What You'll Be Doing

Backend (Primary Focus)

  • Design and build scalable backend services using PHP (Laravel).
  • Develop and maintain RESTful APIs for both internal and external integrations.
  • Implement complex business logic for:
    • Loan origination workflows
    • Offer presentation logic
    • Funding and settlement flows
    • Payments and money movement
    • Role-based permissions and application assignment
  • Integrate with various third-party APIs, including lenders, payment processors, KYC providers, and credit bureaus.
  • Design clean MySQL database architecture, write optimized queries, and ensure data integrity.
  • Implement secure authentication and authorization mechanisms (JWT, OAuth, role-based access).
  • Manage asynchronous processes, webhooks, queues, and background jobs.
  • Write comprehensive unit and integration tests for backend services.
  • Refactor legacy code to enhance scalability and maintainability.
  • Actively participate in architectural discussions and technical planning.

Frontend (Secondary Support)

  • Support development efforts in React.js.
  • Build and maintain API-connected UI components.
  • Work within existing design systems and UI structures.
  • Ensure proper state management and API consumption.
  • Debug cross-stack issues spanning frontend and backend systems.

System & Infrastructure Responsibilities

  • Work extensively within AWS infrastructure (EC2, RDS, S3, IAM, etc.).
  • Understand deployment workflows and manage environment separation (development, staging, production).
  • Collaborate with DevOps teams on CI/CD pipelines.
  • Ensure adherence to performance, security, and monitoring standards.
  • Support system scalability and uptime.

Fintech-Specific Responsibilities

  • Build and maintain systems capable of handling:
    • Sensitive PII (SSNs, EINs, banking data)
    • Loan calculations and APR logic
    • Funding disbursement and reconciliation
    • ACH/card payment processing logic
    • Status-driven workflows (multi-stage application lifecycle)
  • Ensure compliance-conscious development, focusing on data protection, auditability, and traceability.
  • Work with structured underwriting and lender program logic.
  • Support webhook-driven external lender responses and state updates.

What We Expect

  • 6+ years of experience in backend development or full stack development.
  • Strong experience with PHP, specifically the Laravel framework (required).
  • Proficiency with React.js.
  • Strong experience in MySQL database design and optimization.
  • Experience working within AWS environments.
  • Strong experience integrating external REST APIs (required).
  • Mandatory experience in fintech, lending, payments, or other financial platforms.
  • Strong understanding of:
    • Secure coding practices
    • Authentication and authorization models
    • API-driven architecture
    • Webhooks and asynchronous processing
  • Ability to debug complex cross-system issues.
  • Experience working in structured Jira-based sprint environments.
  • Commitment to clean, maintainable coding standards.
  • English B2+ minimum proficiency.

Nice to Have

  • Experience with financial calculations (APR, amortization schedules, payment schedules).
  • Experience with queue systems (Redis, SQS, etc.).
  • Experience with GraphQL.
  • Experience building role/permission matrices.
  • Experience working with credit bureaus or KYC providers.
  • Experience building audit logs and compliance reporting features.

What Success Looks Like in This Role

  • You take full ownership of backend features from specification through to production deployment.
  • You proactively anticipate edge cases in complex financial logic.
  • You build resilient and well-structured integrations.
  • You actively work to reduce technical debt.
  • You identify architectural risks proactively before they escalate.
  • You communicate clearly and effectively with Product, Business Analyst (BA), and DevOps teams.

What We Offer

  • Fully remote work flexibility.
  • Transparent and competitive compensation packages.
  • A high-impact role within a fast-growing fintech platform.
  • Direct involvement in critical architectural decisions.
  • A collaborative team that values ownership, precision, and execution.
  • 20 paid vacation/sick days per year.

Working Hours

This role requires alignment with U.S. Eastern Time to effectively support live production systems and real-time platform operations.

Standard schedule: 12 PM – 8/9 PM EST (Monday–Friday). This schedule ensures strong overlap with U.S.-based operations, product, and support workflows.

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