Product Manager

Sandboxx is the leading platform dedicated to finding and building technology solutions throughout a service member's military life cycle. We're looking for people with drive and initiative who are excited about making great technology and a positive attitude for our service members.  Come help us build meaningful solutions 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.

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 - if you are a continuous learner who enjoys startups in either tech or military, you'll thrive at Sandboxx.  We are committed to building a diverse and inclusive workforce and take affirmative action to not discriminate based on race, religion, color, national origin, ancestry, physical disability, mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, sexual orientation, veteran or military status, or any other legally protected characteristics.  This policy applies to all employment practices within our organization, including but not limited to recruiting, hiring, promotion, termination, compensation, benefits, and training.  Sandboxx is committed to providing reasonable accommodations for candidates with disabilities who need assistance during the hiring process. 

To all recruitment agencies: Sandboxx does not accept agency resumes.  Please do not forward resumes to our jobs alias, Sandboxx employees, or any other organization location.  Sandboxx is not responsible for any fees related to unsolicited resumes.