Senior Backend Engineer

Senior II Backend Engineer | NYC | Up to $260k + Equity

We're working with a well-funded Series B scale-up that's raised over $60m and grown to more than 100 employees. They're looking for a Senior II Backend Engineer to design, build and scale complex distributed systems and core backend services.

This is a hands-on engineering role focused on backend architecture, high-volume data processing and asynchronous systems, with significant ownership over technical design and delivery.

You'll join a small team of 3 senior engineers within a wider engineering organisation of 50, responsible for building and scaling the core backend systems that support the business, with significant autonomy and ownership.

What you'll be working on

• Designing and building scalable distributed backend systems.
• Developing large-scale data ingestion and processing pipelines.
• Building asynchronous systems using queues, workers and event-driven architectures.
• Developing high-throughput APIs and complex data models.
• Building reliable notification, messaging and external integration systems.
• Taking ownership of technical design decisions and mentoring other engineers.

What they're looking for

• 8–10+ years of software engineering experience, with extensive hands-on backend development.
• Proven experience designing, building and scaling complex backend systems in production.
• Strong understanding of distributed systems, asynchronous processing and event-driven architectures.
• Proficiency in at least 2 of TypeScript, Python and Go.
• Experience designing and working with SQL and NoSQL databases.
• Ability to independently own substantial engineering projects from design through to production.
• Regular use of AI coding tools within your development workflow.
• Cloud infrastructure experience is beneficial but not essential.

What's on offer

• Up to $260k base + equity.
• Lower Manhattan, NYC (hybrid – 3 days/week).
• Fully covered healthcare option.
• Unlimited PTO.
• Annual learning and development allowance.
• Significant technical ownership within a well-funded, growing scale-up.