Full-Stack Software Engineer

• Build and debug modern client applications using TypeScript and React/Next.js.
• Design, write, and debug production REST APIs in Node.js/TypeScript or Golang.
• Write efficient SQL queries, joins, and perform basic schema design for transaction and onboarding services.
• Own a feature from the database layer through the API and out to the user interface.
• Consume infrastructure managed by DevOps/Platform engineers.
• Read logs, trace errors, and read dashboards using observability tools.
• Understand core cloud fundamentals like S3, basic networking, and environment configurations.
• Implement real-time transaction updates using WebSockets and Webhooks.
• Utilize Go concurrency features like Goroutines and Channels for high-throughput transaction processing.
• Use AI-assisted tools like Cursor or Copilot for productivity.

• 8+ years of full-stack delivery experience.
• Proficiency in TypeScript and React/Next.js.
• Strong backend skills in Node.js/TypeScript or Golang.
• Experience with SQL and relational databases, specifically PostgreSQL.
• Basic familiarity with Kubernetes, Helm, and Terraform.
• Familiarity with observability platforms like Grafana.
• Understanding of core AWS services (S3, networking, environment configurations).
• C1 or C2 English level.

Preferred Skills

• Experience in Crypto, Fintech, or regulated industries.
• Experience with WebSockets and Webhooks.
• Experience with Go Concurrency (Goroutines/Channels).

Personality

• Pragmatic and proactive.
• Takes full ownership across the entire stack.
• Respects security and compliance requirements.
• Cares about internal tooling and consumer UI.
• Communicates clearly and proactively.
• Provides direct and blameless feedback.
• Adapts to fast-paced, two-week agile sprints.
• Exercises deliberate caution around financial and regulatory risks.

Software & Tools

• Cursor or VS Code.
• Docker.
• Git/GitHub.
• Postman (or cURL).
• PostgreSQL client (TablePlus or DBeaver).
• Browser DevTools.
• AWS Console/CLI.
• Kubernetes (kubectl).
• Grafana.
• Slack.
• Jira.
• Figma.

CoinFlip is a digital currency platform that acts as a bridge between the physical cash economy, traditional banking, and cryptocurrency.