Solutions Engineer

Flox flox.dev Open · verified Sep 14, 2026

Hybrid New York San Francisco Full-time Mid-level Solutions & Sales Engineering

Mid-level Solutions & Sales Engineering role at Flox. New York · full-time · $170,000–$220,000 base.

SalaryStated by Flox

$170,000 – $220,000

Base salary for this role, in USD per year, as published in the posting.

Role brief

Growth Roles summary, based on the employer's posting.

What you'll do

You'll run technical sales from initial discovery through close, partnering with sales on solution design and evaluations
You'll lead proofs of concept with clear success measures and a defined route from technical result to purchase
You'll build and refresh demos across cloud infrastructure, CI/CD, containers, Kubernetes, and Nix workflows
You'll create demos, guides, architectures, and runbooks that help customers understand Flox and support future deals
You'll represent Flox through talks, meetups, customer workshops, and conference booth work

What you bring

You bring at least eight years in sales engineering, solutions engineering, or hands-on technical customer work
You can code, investigate stack traces, and prototype to customer needs without relying on another engineer
You work proficiently in at least two of Python, Node/TypeScript, Go, Ruby, and Rust
You understand containers, Kubernetes, Docker internals, CI/CD, and cloud infrastructure
You've run parallel evaluations and can explain complex technology to both engineers and executives

Who this fits

This role suits a technical, customer-facing seller who can earn trust with engineers, communicate with senior decision-makers, and manage several evaluations at once. You'll be based in NYC in a hybrid role and travel up to 30%. The work includes public talks, meetups, workshops, and conference representation.

From the employer

Location: NYC

Employment Type: Full-Time

Reports To: Head of Business

Travel: up to 30%

About Flox

Flox is a Series B startup rethinking how developers build, ship, and reproduce software environments. We're backed by top US VCs and running in production at Fortune 100 companies. Under the hood we're built on Nix, one of the largest open source projects in the world, and our job is to turn that power into something every engineering team can pick up and use on day one. We ship fast, work in the open, and believe the best technical arguments are the ones you can demo.

The Role

We're hiring a Solutions Engineer to support the full-stack of sales from discovery to close. You're the person who can sit across from a staff engineer at a Fortune 5 company, open a terminal, and earn trust in the first ten minutes.

Flox has strong inbound, so you'll run multiple evaluations in parallel and need to hold quality across all of them. Execution without judgment produces noise. Narrative without a working demo produces slideware. We want both.

What you'll do

Technical sales from discovery to close. Partner with sales to run discovery, shape solutions, and serve as the technical counterpart in every evaluation.
Win deals through technical credibility. Build trust with engineers and decision-makers through deep understanding and value creation. Scope, execute, and drive proofs of concept to clear technical wins, with defined success criteria and a path to purchase.
Build and maintain demo environments. Stand up and adapt demos against real stacks — cloud infra, CI/CD, containers, Kubernetes, and Nix-based workflows — and keep a library of environments ready to meet customers where they are.
Tell the story and produce durable collateral. Craft the narratives, analogies, and reference architectures that make Flox click for different audiences (platform, security, leadership). Demo repos, integration guides, reference architectures, and runbooks — the artifacts that make the next deal easier than the last one.
Represent Flox in public. Conference talks, meetups, customer workshops, booth duty.

What we're looking for

8+ years in Sales Engineering, Solutions Engineering, or a hands-on technical customer-facing role at a developer tools, infrastructure, or devex company.
Technical depth, terminal-native. You read and write code, debug a stack trace on a shared screen, and build prototypes to customer spec without calling in an engineer. Working proficiency in at least two of: Python, Node/TypeScript, Go, Ruby, Rust.
Strong communication skills. Clear, direct writing and speaking. You can explain a gnarly technical concept to a staff engineer and a VP in the same meeting, and adjust on the fly.
Comfort across varied demo environments. You can stand up, adapt, and troubleshoot demos against whatever stack a customer puts in front of you, and you have opinions about what makes a demo land.
A repertoire of stories and POCs you can point to. Specific demos you've built, evaluations you've run, and technical wins you've closed.
Deep fluency in the surrounding ecosystem. Containers, Kubernetes, Docker internals, CI/CD pipelines, and cloud infrastructure. You can credibly place Flox alongside the tools customers already use and explain where it fits.
Ability to run multiple evaluations in parallel without dropping threads.
Strong bias to action and execution.

Nice to have

Prior experience at an early-stage startup (Seed–Series B).
Experience with virtual environments and dev containers
Familiarity with Nix, or a genuine curiosity to go deep on it.
Background in financial services, cybersecurity, supply chain security, or SBOM tooling.