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Product Manager

Middleburg, VA or Remote

Sandboxx builds consumer technology that supports service members and their families across the full military life cycle. We operate at national scale, work closely with the Department of War and the broader military ecosystem, and serve millions of users each year. We are looking for driven, curious people who take ownership of their work, move quickly, and want to build products that have real impact for the military community.

Product Manager

  • This is a full-time W2, in-office position based in Middleburg, Virginia.
  • We offer a generous relocation stipend to make your move smooth and stress-free.
  • Our office is dog-friendly; your four-legged friends are welcome here!

We’re hiring a hands-on Product Manager who thrives on turning ideas into shipped, measurable outcomes. You’ll drive the execution and delivery of our flagship product, Sandboxx Letters, and partner closely on Waypoints, translating discovery work into prioritized backlogs, prototypes, and shipped features. You’ll play a hybrid role, part product owner, part designer-adjacent builder, and part scrum master, helping connect strategy to execution. This is a high-impact, hands-on role on a lean team: you should be comfortable managing two product roadmaps, writing crisp PRDs, and turning those PRDs into clickable, AI-enabled prototypes that engineers can iterate on and ship.

We’re a mission-driven team building products that matter. If you’re motivated by purposeful work, enjoy end-to-end ownership, and have experience leveraging AI coding tools to move faster and build smarter, this role is for you.

While we offer the flexibility to hire remote talent for the right fit, we have a strong preference for in-person collaboration at our Middleburg, VA headquarters and offer an enhanced compensation package for candidates willing to be onsite.

About Sandboxx

Sandboxx builds products that support the military community, connecting service members and their supporters, and developing solutions that matter to the family life cycle of service. We’re mission-driven, scrappy, and growing new products like Waypoints while doubling down on our flagship product, Sandboxx Letters.

What you’ll own

  • Execution for Sandboxx Letters: Manage roadmap delivery, backlog prioritization, feature launches, experiments, and KPI tracking for engagement and retention.
  • Support for Waypoints: Partner with leadership and design to turn discovery and research insights into actionable PRDs and prototypes.
  • End-to-end delivery for features: PRD → prototype → engineering handoff → launch → measurement.
  • Agile ownership: Run sprints, retros, and backlog grooming sessions for a small cross-functional squad, you’ve got a “do-it-all” mindset.
  • Design partner: Create and critique UI/UX work, maintain or help evolve our design system, and ensure product polish across platforms.
  • AI-forward prototyping: Use AI tools and prototyping frameworks to rapidly test and validate new user experiences (LLM-powered helpers for copy, auto-translations, summarization, personalization, on-device or cloud RAG flows, etc.).
  • Cross-functional communication: Keep teams aligned through clear documentation, roadmaps, and stakeholder updates.
  • Measurement: Define success metrics, track impact, and use data to guide iteration.

Day-to-day Responsibilities

  • Write clear, outcome-focused PRDs that include success metrics, user journeys, designs, and engineering acceptance criteria.
  • Rapidly prototype PRDs into interactive mocks using Figma/Framer/Framer Motion (or similar), plus AI prototyping frameworks to demo LLM experiences.
  • Collaborate with engineers to scope, delivery and acceptance criteria, delivering features for mobile and web applications.
  • Run Agile rituals (act as PO or Scrum Master depending on sprint needs) and maintain backlog health.
  • Run discovery, conducting user interviews, surveys, data analysis, and small-scale experiments.
  • Prioritize ruthlessly for a two-product portfolio; balance near-term letter needs with Waypoints product experiments. Measure results and iterate: own instrumentation, dashboards, and experiments.
  • Influence tradeoffs and decision-making to ensure quality delivery and simple experiences.

Who you are

  • 3+ years of product management experience owning consumer mobile/web products (startup or small team experience preferred).
  • Proven ability to manage two products or a product + new product incubator simultaneously and prioritize conflicting needs.
  • Strong design sensibility, comfortable critiquing UI and interaction patterns, and shipping polished mobile experiences.
  • Excellent PRD and product writing skills. You can create a document that engineers, designers, and executives all understand and act upon.
    Hands-on with prototyping tools (Figma required; experience with Framer, ProtoPie, or full-stack prototyping a plus). You can turn a PRD into a clickable prototype with real AI behavior.
  • Practical experience building or prototyping AI features (LLMs/Generative AI): prompt design, human-in-the-loop, RAG, basic evaluation/metrics for LLM experiences.
  • As the product owner and Scrum Master on a lean team, you can lead ceremonies and execute tactical tasks.
  • Strong analytical instincts and experience with analytics (Amplitude, Firebase, Mixpanel, or similar).
  • Excellent cross-functional communication and stakeholder management skills.
  • Mission aligned: You care about serving the military community and building products that matter.

Nice to have

  • Certifications: CSPO/CSM/PMP or similar.
  • Experience with shipping subscription or commerce features (letters have fulfillment/physical shipping elements).
  • Background working with mobile SDKs, backend APIs (Python/Go), or experience working closely with GraphQL backends.
  • Prior experience building AI into consumer-facing mobile apps and running live experiments.

What success looks like (first 6 months)

  • Sandbox Letters: you’ve stabilized immediate, high-impact needs, shipped 1–3 experiments that materially improve engagement or reduce friction, established KPIs drafted a clear quarterly roadmap. 
  • Waypoints: You’ve taken discovery work and converted it into a prioritized backlog, along with at least two high-fidelity AI-enabled prototype/experiment, ready for engineering.
  • Team and process: you’ve established reliable Agile cadences (planning, demo, retro), set up instrumentation/dashboards, and improved cross-team alignment.
  • AI: You’ve demonstrated at least one validated AI experience (prototype → user feedback → measurement plan) that can be moved into production.

30/90/180-day plan

30 days

  • Onboard fast: learn the Letters product, Waypoints discovery artifacts, code architecture, and current backlog. (Review past PRDs, OKRs, and analytics.)
  • Triage immediate Letters priorities: bug list, high-impact UX fixes, and operational risks. Put quick wins in the next sprint.
  • Run stakeholder interviews with Engineering, Design, Growth, Ops, and Customer Support to align on the top 3–5 priorities.
  • Establish baseline metrics (engagement, retention, letter send success, NPS, funnel conversion).
    Begin pairing with the Waypoints team to understand the user research and positioning.

90 days

  • Own and deliver at least one Letters experiment (A/B or feature) that improves a key KPI (e.g., retention or conversion).
  • Deliver 1-2 high-fidelity AI prototypes (e.g., AI-assisted letter composition, translation, or summarization) that include prompts, data needs, safety considerations, and measurement plan.
  • Define and socialize a 90-day roadmap for both Letters and Waypoints.
  • Formalize Agile processes on your squads (backlog grooming, sprint planning, retros).
  • Start shaping Waypoints’ MVP priorities and hand off a prioritized engineering-ready backlog for the next quarter.

180 days

  • Ship roadmap items for Letters with clear lift on KPIs and solid instrumentation for iteration.
  • Deliver a Waypoints feature set or a production-ready prototype, including AI behavior where relevant.
  • Establish ongoing experiment cadence (weekly/monthly) and an AI evaluation framework for LLM features (quality, safety, cost)
  • Improve product/design system documentation and handoff practices so engineers can move faster.

Why Sandboxx?

  • A small, mission-driven team where you’ll have a significant amount of ownership and direct impact.
  • Big opportunities to build AI-first consumer experiences that serve a real community.
  • Competitive benefits and equity options. (We’re a small team that treats team members like owners.)

Sandboxx is an equal opportunity employer. We hire based on merit, capability, and potential, and we believe people do their best work in an environment that values curiosity, accountability, and continuous improvement. We do not discriminate on the basis of any legally protected characteristic, and this commitment applies to all aspects of employment including recruiting, hiring, promotion, compensation, and termination.

Sandboxx provides reasonable accommodations for qualified candidates who need assistance during the hiring process.

For recruitment agencies: Sandboxx does not accept unsolicited resumes from agencies. Please do not forward resumes to our jobs alias, employees, or any other Sandboxx contact. Sandboxx is not responsible for any fees related to unsolicited submissions.

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