Senior Software Engineer

Primis
New York, New York, United StatesunknownPosted Sep 14, 2026

About the role

Senior Software Engineer | AI Startup | NYC

Primis is partnered with a well-funded, early-stage AI startup in NYC building intelligent fraud detection software.

ARR is growing fast, they have enterprise logos, and they're backed by strong institutional investors. Small team, real ownership, meaningful equity.

They're hiring a Senior Software Engineer to own meaningful parts of the platform end-to-end.

What you'll work on:

Own features from design through deployment - pipelines, workflows, internal tooling, and core platform capabilities

Build systems where correctness and reliability aren't optional

Work directly with product and operations to turn real business needs into scalable software

Mentor junior engineers and help raise the bar across the team through code reviews, on-call, and incident response

What we're looking for:

5+ years building large-scale distributed systems in production

Experience with high-reliability, high-accuracy, or high-security systems - you understand what it means when things can't be wrong

Track record designing and launching backend architectures that serve multiple users and tenants at scale

Able to move between rapid prototyping and production-grade development without losing either speed or quality

Writes clearly, communicates well, and can hold a conversation with both engineers and non-engineers

Self-starter who's energized by unsolved problems, not intimidated by them

Strong collaborator - direct, open to feedback, and comfortable giving it

Interested? Please apply for more info!

ADVERT DISCLAIMER

Research indicates that men will apply to a role when they only meet 50-60% of the descriptions, however, when looking at women and other minority groups, they can look for up to a 99% match in order to apply to a role. If you feel you are a fit for our role, please still apply - don't worry if you don't tick every single box. We'd still love to hear from you. We encourage underrepresented talent to apply to all our roles and support accessibility needs.

Responsibilities

  • Own features from design through deployment - pipelines, workflows, internal tooling, and core platform capabilities
  • Build systems where correctness and reliability aren't optional
  • Work directly with product and operations to turn real business needs into scalable software
  • Mentor junior engineers and help raise the bar across the team through code reviews, on-call, and incident response

Qualifications

  • 5+ years building large-scale distributed systems in production
  • Experience with high-reliability, high-accuracy, or high-security systems
  • Track record designing and launching backend architectures that serve multiple users and tenants at scale
  • Able to move between rapid prototyping and production-grade development without losing either speed or quality
  • Writes clearly, communicates well, and can hold a conversation with both engineers and non-engineers
  • Self-starter who's energized by unsolved problems
  • Strong collaborator - direct, open to feedback, and comfortable giving it

Benefits

  • Meaningful Equity

Skills mentioned

Distributed SystemsSystem DesignBackend DevelopmentMicroservicesPerformance OptimizationSoftware TestingCI/CDGitDatabase DesignIncident Response

About Primis

Primis is a provider of talent solutions to the technology sector across the UK and US. We are on a mission to work with our clients and educate them on the importance of D&I when it comes to building out teams and organisations. We understand that as a business we are only as good as the people we employ and work with, so we put people first in every decision we make. Get in touch today: London : 0203 854 9777 Manchester: 0161 394 1036 New York : 646 630 8467 Dubai: +971 55 233 4974 hello@primis-talent.com careers@primis-talent.com (we are hiring!)

Staffing and Recruiting51-200 employeesLondon