Senior Software Engineer
Senior Software Engineer owning end-to-end platform integrations, building reliable connectivity, data ingestion/exports, high-volume data services, and RESTful/webhook APIs with third-party platforms like Salesforce. Requires 5+ years backend experience with Node.js/NestJS, TypeScript, API integrations, and MongoDB.
About the job
What You'll Do
- Own the platform integrations layer end-to-end — building reliable connectivity, data ingestion/exports, and orchestration for complex, multi-step, long-running processes (including retries and state management)
- Build and maintain both inbound and outbound integrations with third-party platforms (e.g., Salesforce and other external/open APIs)
- Design and implement in-house services capable of processing large volumes of data under tight time constraints, optimizing for throughput and latency
- Design and maintain RESTful and webhook-based APIs, applying strong patterns for rate limiting, pagination, error handling, versioning, and backward compatibility
- Collaborate with product and platform teams to define integration requirements and execution guarantees (SLAs/SLOs)
- Build observability (logging, tracing, metrics) into integration systems, and use it to monitor, troubleshoot, and continuously improve production reliability
- Lead medium/large feature development independently within agile processes, mentoring engineers and conducting code reviews along the way
- Stay current with emerging technologies and evaluate new tools for potential adoption
What You Bring
- 5+ years of software engineering experience with a focus on backend systems
- Strong experience with Node.js (NestJS), JavaScript, and TypeScript; Java (Spring Boot) is a plus
- Proven experience integrating with external/third-party APIs, building both inbound and outbound integrations (any platform — pattern/concept experience is transferable)
- Demonstrated experience building high-volume data services — e.g., optimizing data processing/ingestion time under real-world constraints
- Strong problem-solving and analytical skills, with the ability to debug complex technical issues and implement robust solutions
- Solid understanding of authentication and authorization protocols, including OAuth 2.0, OIDC, SAML, and JWT
- Proficiency with MongoDB and comfort working across relational and NoSQL data stores; familiarity with React a plus
- Strong communicator, comfortable leading cross-functional collaboration with both technical and non-technical stakeholders
Skills
Node.js, Nestjs, JavaScript, TypeScript, Java, Spring Boot, REST APIs, Webhooks, Oauth 2.0, OIDC, SAML, Jwt, MongoDB, NoSQL, React
Similar jobs
Backend Engineering jobs
ZoomInfo
Bethesda, MD
Build and scale high-performance backend services and microservices for a platform serving millions of users. The role requires strong Node.js expertise, distributed-systems experience, and technical leadership, with Java, cloud, and AI-assisted development experience preferred.
ZoomInfo
Bethesda, MD
Senior backend engineer building and scaling Node.js microservices, APIs, and distributed systems for a high-volume platform. Requires 6+ years of backend development experience, technical leadership, and expertise in performance, reliability, and modern development practices.
NinjaTrader
Chicago, IL
Owns the backend service layer for account activation and onboarding, building resilient Node.js and TypeScript workflows for identity verification, funding, and third-party integrations. Requires 6+ years of backend experience, event-driven architecture expertise, and production skills with cloud infrastructure and Kubernetes.
NinjaTrader
Chicago, IL
Leads development and operation of production Rust backend services for account creation, identity verification, and KYC/CIP decisioning. The role requires 6+ years of software development experience, strong async Rust expertise, secure data-handling experience, and the ability to drive cross-team technical design.
GameChanger
United States
Build and evolve subscription and payment platforms, APIs, and integrations while improving reliability, scalability, and maintainability. The role requires 6+ years of software development experience, backend expertise, and leadership of complex technical designs.