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# Mid/Senior Backend Engineer

- **Company:** Solidgate holding LLC.
- **Location:** United States (Remote available)
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Payment Systems, Github, PostgreSQL, MySQL, Node.Js, RabbitMQ, TypeScript, Software Security, Cypress (Programming Language), Backend, Event Driven Architecture, Build Management, Gitlab-ci, Apache Kafka, Front End Software Development, JestJS, Amazon Simple Queue Service (SQS), Terraform, Docker, Service Stack
- **Published:** August 30, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/pg2lx3y4bd

## About the Role

2+ years of backend development experience (Node.js/TypeScript preferred, but other backend programming languages are considered as well)

 - Strong command of SQL - PostgreSQL or MySQL

 - Experience writing unit and functional tests (Jest, Cypress, Vitest, or similar)

 - Experience building or integrating complex systems

 - Proactive by default: you spot problems early, propose fixes, and follow through

 - Comfortable owning a feature from first line to production - no hand-holding needed

 - Clear communicator: you can explain technical decisions and defend your choices

 - Business-minded: you build to create value, not just to ship code

Nice to have

 - Experience with event-driven systems

 - Kafka, RabbitMQ, or SQS

 - Familiarity with fintech, crypto, or payment system integrations

 - Hands-on with Docker, AWS, GitLab CI/CD or GitHub Actions, Terraform

 - Knowledge of API security and vulnerability patterns

## Description

Your immediate team: a Senior Backend Engineer with 10+ years in fintech and AI, a Senior Backend Engineer with 8+ years including crypto, a Middle Frontend Engineer with 6+ years, and a Junior AQA Engineer. We're growing it now to launch corporate cards - a new product that lets business clients issue and manage cards directly through the platform.

Explore our technology stack ️ here.

What you'll own

 - Design and build backend services for corporate card issuance and management, including roles and user permissions

 - Integrate with core banking providers, AML systems, and SWIFT to enable reliable, compliant payment flows (SEPA, SWIFT, payout to cards)

 - Analyze third-party documentation and translate it into concrete integration and architecture plans

 - Participate in product decisions across the full development lifecycle - from RFC and PRD to production

 - Improve the performance, scalability, and observability of the system using tools like Kafka, tRPC/Connect RPC, Loki, and VictoriaMetrics

 - Hold quality to a high standard: write unit and functional tests, follow security best practices, and contribute to automated CI/CD pipelines

 - Collaborate daily with design, finance, and platform teams to ship a seamless end-to-end user experience


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