Job VC
Senior Backend Engineer / Tech Lead (Node.js, TypeScript)
Technologies
Description
About the Role
We're looking for a hands-on Senior Backend Engineer / Tech Lead to own core backend development on the Backslash platform. This is a high-ownership role — you'll drive architectural decisions, implement customer-facing features, and keep systems performant and secure at scale. The right person is analytical, self-sufficient, and comfortable working end-to-end with minimal hand-holding.
Key Responsibilities
Take full ownership of backend development in Node.js and TypeScript
Lead architectural improvements and simplification of existing systems
Implement and deliver customer feature requests end-to-end
Ensure high performance — memory optimization, throughput, and scalability
Maintain strong application security practices (AppSec) across the codebase
Participate in an on-call rotation (week-by-week basis)
Guide technical decisions and mentor team members as a Tech Lead
Collaborate cross-functionally with product, security research, and customer teams
Requirements
6+ years of backend development experience
Deep expertise in Node.js and TypeScript
Experience in or readiness to step into a Tech Lead role
Strong analytical and problem-solving skills — a must
Solid understanding of application security (AppSec) principles and practices
Hands-on experience with memory optimization and performance tuning
Able to work independently, own tasks from spec to production
English B2+ — clear written and verbal communication
Nice to Have
Experience in an AppSec-focused product environment — significant advantage
Familiarity with security packages and vulnerability management tooling (e.g. npm audit, Snyk, OSV, SAST/SCA concepts)
Background in customer-facing or feature-driven development
Exposure to code analysis, static analysis, or software supply chain security concepts
We're looking for a hands-on Senior Backend Engineer / Tech Lead to own core backend development on the Backslash platform. This is a high-ownership role — you'll drive architectural decisions, implement customer-facing features, and keep systems performant and secure at scale. The right person is analytical, self-sufficient, and comfortable working end-to-end with minimal hand-holding.
Key Responsibilities
Take full ownership of backend development in Node.js and TypeScript
Lead architectural improvements and simplification of existing systems
Implement and deliver customer feature requests end-to-end
Ensure high performance — memory optimization, throughput, and scalability
Maintain strong application security practices (AppSec) across the codebase
Participate in an on-call rotation (week-by-week basis)
Guide technical decisions and mentor team members as a Tech Lead
Collaborate cross-functionally with product, security research, and customer teams
Requirements
6+ years of backend development experience
Deep expertise in Node.js and TypeScript
Experience in or readiness to step into a Tech Lead role
Strong analytical and problem-solving skills — a must
Solid understanding of application security (AppSec) principles and practices
Hands-on experience with memory optimization and performance tuning
Able to work independently, own tasks from spec to production
English B2+ — clear written and verbal communication
Nice to Have
Experience in an AppSec-focused product environment — significant advantage
Familiarity with security packages and vulnerability management tooling (e.g. npm audit, Snyk, OSV, SAST/SCA concepts)
Background in customer-facing or feature-driven development
Exposure to code analysis, static analysis, or software supply chain security concepts