Senior Software Engineer – Backend

Why Vizcom Our mission is to reshape design by streamlining the path from concept to creation, bringing more impactful ideas into the physical world.We’re well-funded (Series B $51m to date), growing double-digits MoM, and expanding the core engineering team in SF. The surface area is big: realtime collaboration, GPU inference at scale, a modern TypeScript stack, and serving real enterpriseThe Role As theSenior Software Engineer – Backend (Systems / Infrastructure)you’ll architect and deliver backend systems that keep Vizcom fast, reliable, and scalable as our workload and customer base grow. You’ll work on everything fromqueueing GPU workloadstooptimizing GraphQL resolversandstreaming realtime events . You’ll have deep ownership over APIs, performance, and data integrity — while collaborating with frontend and AI teams to enable magical experiences. Within your first 90 days you will: ship onecritical backend feature(e.g., model queue, caching layer, or realtime service), reduce p95 latency in one major API path by ~30%, Author one technical RFC proposing an improvement to architecture or reliability, Implement or document oneobservability improvement(metrics, traces, alerts).Compensation $195k - $225,000K + Offers Equity What You’ll DoDesign and implement scalable APIsin TypeScript/Node with GraphQL and PostgresProfile and optimizeslow paths — queries, resolvers, and I/OBuild and operate distributed systems:job queues, streaming, caching, and observabilityCollaborate with AI engineersto integrate GPU inference pipelines into user workflowsImprove reliability:lead incident reviews, strengthen CI/CD and deployment flowsMentor teammateson backend architecture, testing, and performance thinkingThe Problems You’ll TackleDistributed GPU inference and queueing with bursty workloads.Realtime synchronization with WebSocket and CRDT-based collaboration.GraphQL performance: caching, batching, resolver optimization.Secure multi-tenant data boundaries and enterprise integrations (SSO/SAML/SCIM).Our Stack (today)Frontend:TypeScript, React, Vite, WebGL; realtime collaboration.API/Backend:TypeScript/Node, GraphQL (PostGraphile), Postgres, Redis, background workers.Infra:Kubernetes, Pulumi, CI/CD with GitHub Actions, Datadog for observability, feature flags.Security/Enterprise:SSO/SAML (WorkOS), SOC 2-minded practices.Experience with every item above is not required. What matters is that you are excited to shape it.Qualifications5–8+ years building production web systems (TypeScript/Node or similar)Strength indatabases, performance tuning , anddistributed systemsExperience operatingKubernetesor similar orchestration environments.Fluency withobservabilitytools and debugging live systems.Bonus: GPU workloads, background job systems, or realtime architectures.How We WorkSmall team, high ownership. Fewer people, more leverage.Design-centric. We obsess over speed and feel; “fast enough” usually is not.Write it down. RFCs, crisp decisions, living docs.Operate what you build. Everyone takes on-call support; incidents drive improvement, not blame.Interview ProcessIntro (30m): mutual fit, role and impact.Architectural deep-dive (45m): product and design collaboration.Coding Session (45m):Onsite Interview (half day)References and offer.Ready to Build? If you want your work to be used daily by world-class designers and you like owning problems end to end, let’s talk. Apply with links (GitHub, LinkedIn, notable projects) and a short note on something hard you shipped.#J-18808-Ljbffr