Sketchy

Principal Software Developer, Backend

Sketchy

full-time

Posted on:

Location Type: Remote

Location: CaliforniaColoradoUnited States

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Salary

💰 $195,000 - $215,000 per year

Job Level

About the role

  • Own architecture and technical direction for major backend systems and initiatives, balancing product velocity with reliability, scalability, and long-term maintainability.
  • Lead cross-functional delivery with Product Managers and Designers by translating ambiguous problems into clear technical plans, milestones, and measurable outcomes.
  • Design, build, and operate applied AI systems in production, including: LLM-backed workflows and services; Retrieval patterns (RAG), embeddings, and vector stores; Evaluation frameworks, guardrails, and quality measurement; Monitoring for latency, cost, failures, and model drift.
  • Establish and uphold engineering best practices across the backend organization, including code quality, testing strategy, documentation, operational readiness, and incident response.
  • Act as a force multiplier through technical mentorship, pairing, architecture reviews, and raising standards across the engineering team.
  • Drive operational excellence by improving observability, performance tuning, cost efficiency, system reliability, and on-call outcomes.
  • Participate in an on-call rotation to support production systems and lead investigations when issues occur.
  • Break down complex product requirements into well-scoped workstreams that enable predictable execution and high-quality delivery.

Requirements

  • 10+ years of experience building and operating production backend systems in consumer and/or B2B SaaS environments, including scaling and distributed systems.
  • Deep expertise in AWS and cloud-native architectures (EC2, Fargate, Lambda, queues) with Infrastructure as Code (Terraform).
  • Strong experience with Node.js, TypeScript, and modern backend frameworks (NestJS or equivalent).
  • Experience with Redis, Postgres, SQL, and data-intensive backend systems.
  • Proven ability to design scalable architectures and lead complex technical decisions across APIs, data models, async workflows, caching, and migrations.
  • Strong experience with Docker, CI/CD pipelines, and production deployment patterns.
  • Expertise in observability, reliability, and cost optimization (metrics, logging, tracing; e.g., Datadog).
  • Excellent communication skills and a strong record of ownership and delivery in fast-moving startup environments.
  • Applied AI / Generative AI (Must Have)
  • Hands-on experience shipping AI-enabled features into production, including LLM-backed workflows, retrieval patterns (RAG, embeddings, vector databases), evaluation and guardrails, and monitoring for quality, latency, cost, and model drift.
Benefits
  • 100% Individual Health Coverage - We got you covered!
  • Equity - From day one, you’ll have a stake in our future growth.
  • 401(k) - We support your financial future with up to 5% matching.
  • Annual Company Retreat in Cool Places
  • Flexible Time Off
  • Annual Work Anniversary Stipend
  • Monthly Wifi & Phone Reimbursement
  • Short Term & Long Term Disability

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
backend systemscloud-native architecturesInfrastructure as CodeNode.jsTypeScriptRedisPostgresDockerCI/CD pipelinesapplied AI
Soft skills
communicationownershipdeliverytechnical mentorshipcross-functional collaborationproblem-solvingleadershipoperational excellenceincident responsescalability