Senior Engineer, Backend

Linero
New York, US
On-site

Who this role is best for

Aimed at senior backend engineers who design high-scale systems and thrive in high-security environments, requiring NYC presence or relocation.

Best fit for

  • Architects of multi-tenant SaaS with strict data isolation needs
    — “multi-tenant architecture with strict data isolation requirements
  • Backend engineers fluent in enterprise integration patterns
    — “fluency in enterprise integration patterns
  • Those comfortable operating under stringent security requirements
    — “operates under the most stringent security requirements

Things to consider

  • Must be a U.S. person due to export controls
    — “applicants must be U.S. persons
  • Relocation to New York City required unless initial remote exception granted
    — “Based in or willing to relocate to New York City

How to stand out

  • Showcase systems you designed, not just built to spec
    — “you have designed systems, not just built to spec
  • Highlight experience in high-security or regulated environments
    — “experience operating in high-security or regulated environments
  • Demonstrate ownership beyond assigned tasks in past roles
    — “you don't wait to be told what needs fixing
Pace · Fast PacedCollaboration · MediumAutonomy · HighDecision Impact · TeamLevel · Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • core backend services
  • APIs
  • data pipelines
  • enterprise integrations
  • backend engineering standards
Typical background
backend engineeringsoftware architecture

Skills & requirements

Required

Backend EngineeringSoftware ArchitectureAPI DesignDistributed SystemsData ModelingEnterprise IntegrationZero-trust SecurityOwnership

Preferred

Ai/mlPythonGoJavaMulti-tenant ArchitectureHigh-security Environments

Stack & domain

Backend EngineeringApi DesignDistributed SystemsData ModelingMulti-tenant Saas ArchitecturesEnterprise Integration PatternsZero-trust Security ModelsPythonGoJavaOwnershipCommunicationTeamworkProblem-solvingLeadershipNational SecurityIndustrial InfrastructureEnterprise Ai

About the role

Original posting from Linero via Ashby

About Linero

Linero is building the operational infrastructure that ensures the world's most sensitive technologies reach the right hands, and never the wrong ones.

Our customers include some of the most consequential companies in the world: leading AI labs, aerospace and defense primes, semiconductor giants, quantum computing pioneers, and companies pushing the frontier in chemicals, advanced manufacturing, and robotics.

We are an AI-native, venture-backed company creating a new category of software at the intersection of national security, industrial infrastructure, and enterprise AI.

The Role

As a Senior Engineer, Backend, you will own significant pieces of the core infrastructure: designing and shipping systems that power deep enterprise integrations, complex data workflows, and a product that operates under the most stringent security requirements in the industry.

This is a high-ownership role. You will drive significant architectural decisions, influence platform choices that will shape how Linero scales, and work closely with the founding engineering team to shape the architecture and trajectory of the product.

What You'll Own

  • Design, build, and maintain core backend services and APIs that power Linero's platform at scale
  • Contribute to the design and implementation of multi-tenant architecture with strict data isolation requirements
  • Build scalable, high-performance data pipelines that operate reliably under demanding latency and volume requirements
  • Collaborate closely with AI/ML, infrastructure, and frontend teams to ship cohesive, production-grade product
  • Establish backend engineering standards: code quality, testing practices, and deployment patterns that the team can build on
  • Participate in code reviews, architectural discussions, and the continuous raising of engineering standards across the team

What we're looking for

  • 5+ years of backend engineering experience with a proven track record of designing and shipping complex, high-scale systems
  • Demonstrated experience with software architecture; you have designed systems, not just built to spec, and you can articulate the trade-offs behind your decisions
  • Deep proficiency in at least one backend language: Python, Go, or Java preferred
  • Strong experience with API design, distributed systems, and data modeling, including multi-tenant SaaS architectures with strict data isolation requirements
  • Experience building enterprise integrations across heterogeneous systems - ERPs, SaaS platforms, or internal tooling - with fluency in enterprise integration patterns
  • Familiarity with zero-trust security models and experience operating in high-security or regulated environments
  • You take ownership seriously; you don't wait to be told what needs fixing
  • Based in or willing to relocate to New York City

What we offer

  • Competitive compensation commensurate with experience
  • Meaningful equity in a company at an early and critical stage of growth
  • Comprehensive benefits including health, dental, and vision
  • The opportunity to shape the core architecture of one of the most consequential platforms being built today
  • Direct access to leadership and genuine influence over how Linero is built

Equal Opportunity & Eligibility

  • Linero is an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
  • This role requires access to export-controlled information, as a result, applicants must be U.S. persons (citizens, lawful permanent residents, refugees, or asylees) as defined under applicable U.S. law.
  • Start date is immediate, with flexibility for the right candidate. If you are not based in New York, we can accommodate remote work for an initial period and offer relocation assistance on a case-by-case basis.

Source: Linero careers (Ashby)

Similar roles