
Senior Software Engineer – Node, TypeScript, Frontend Ecosystem
Sourcemap: the Supply Chain Mapping Company
full-time
Posted on:
Location Type: Hybrid
Location: New York City • New York • United States
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Salary
💰 $130,000 - $160,000 per year
Job Level
About the role
- Design and implement modular backend services in Node and TypeScript with clear separation between domain, application, and infrastructure layers.
- Evolve our architecture toward event-driven patterns, using message buses or streaming platforms (e.g., Kafka, SNS/SQS, NATS, RabbitMQ) where asynchronous workflows add resilience and clarity.
- Model domain events and asynchronous flows, establishing conventions for publishing, consuming, and versioning events across services.
- Lead technical design discussions, providing guidance on boundaries, contracts, and long-term system behavior.
- Improve testing strategy, emphasizing unit tests that isolate domain logic, integration tests with clear boundaries, and contract tests for APIs and events.
- Contribute to modernization efforts, including refactoring legacy modules, improving observability, and reducing complexity where it adds value.
- Mentor engineers through pairing and thoughtful PR reviews, modeling clear, intentional engineering practices.
- Evaluate tools and frameworks with a focus on long-term stewardship, maintainability, and operational simplicity.
Requirements
- 5+ years of professional experience in software engineering, with expertise in Node.js and TypeScript, including building and maintaining large-scale systems.
- Strong architectural thinking, with an ability to design systems around clear boundaries, domain models, and well-defined contracts.
- Demonstrated experience with event-driven architectures, including message buses, pub/sub systems, or streaming platforms.
- Deep understanding of asynchronous workflows, domain events, idempotency, and patterns for resilience and eventual consistency.
- Proficiency working across frontend frameworks (Angular, React, Next.js) and collaborating on shared patterns and interfaces.
- Hands-on experience with multiple persistence approaches (MongoDB, Redis, etc.) and the judgment to choose the right tool for the domain.
- Strong testing instincts, including designing testable modules and building reliable test suites that don’t depend on fragile infrastructure.
- A collaborative, mentoring mindset, with the ability to elevate others through clarity, example, and calm technical leadership.
- Background in SaaS or product-focused engineering.
- Experience working in a dynamic, fast-growing organization.
Benefits
- paid time off
- paid holidays (including an extended end-of-year break and Summer Fridays)
- 100% employer-paid medical, dental, and vision coverage
- 401k
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
Node.jsTypeScriptevent-driven architectureasynchronous workflowsdomain eventsunit testingintegration testingcontract testingMongoDBRedis
Soft Skills
architectural thinkingmentoringcollaborationtechnical leadershipclarityguidanceproblem-solvingcommunicationpair programmingreviewing pull requests