Product Manager — Agentic Payments & Wallets

Posted 11 Days Ago
3 Locations
Remote
Mid level
Blockchain • Fintech • Retail • Financial Services • Cryptocurrency
Builders & researchers with expertise in Ethereum, Protocol Engineering, L2, DeFi & Smart Contracts Security & Auditing
The Role
Seeking a Product Manager to lead early-stage crypto payment and wallet projects, conducting market research, customer discovery, and shaping product vision from 0 to 1, while securing design partners and planning go-to-market strategies.
Summary Generated by Built In

What we're building

Nethermind is exploring the next generation of crypto payments and wallet infrastructure — where AI agents, humans, and APIs transact value seamlessly:

  • x402 / Agentic Payments: Building "Stripe for x402" — the payments, billing, and analytics infrastructure for machine-to-machine and agent-to-agent commerce. Think: subscriptions, credits, refunds, and developer tooling on top of the x402 protocol.

  • Agentic Wallet: A mobile-native, intent-based wallet combining traditional AA (ERC-4337) capabilities with agent-driven automation, adaptive security, and privacy-preserving payments. Users say what they want ("stake $50 in ETH"), and the wallet figures out how.

These are early-stage ventures — some with prototypes, some still in research. The products will evolve based on what we learn from the market.

What we need

A Product Manager who thrives in ambiguity and can take products from 0 → 1. This is not about optimizing existing funnels or shipping incremental features. It's about:

  • Discovering whether a product should exist at all

  • Finding the first customers who desperately need it

  • Shaping the product based on real conversations, not assumptions

  • Moving fast with small teams to test hypotheses

You'll work closely with:

  • Potential customers: infra providers, agent developers, protocol teams, DeFi power users

  • Small, scrappy engineering teams building prototypes

  • BD/partnerships to source design partners and early pilots

  • Leadership to validate venture direction and resource allocation

Role & Responsibilities

1) Customer discovery & market research

  • Talk to 50+ potential customers in the first 3 months: compute providers, API sellers, wallet users, agent builders, DeFi protocols

  • Identify who has the burning pain: "Who will pay for this today, not in 2 years?"

  • Map the competitive landscape and understand why existing solutions fail

  • Synthesize insights into clear hypotheses about what to build and for whom

2) Shape the product from zero

  • Translate messy customer feedback into a focused product vision

  • Define the wedge: the smallest, most compelling version that unlocks the first paying customers

  • Write lightweight specs and work directly with engineers to iterate fast

  • Kill ideas that don't validate — pivot without emotional attachment

3) Secure design partners & early pilots

  • Source and close 2–5 design partners willing to co-develop and provide real feedback

  • Negotiate early pilot terms (paid or strategic value exchange)

  • Build relationships that turn into case studies and word-of-mouth

4) Plan go-to-market (GTM)

  • Define the initial target segment and positioning ("Who is this for? Why us? Why now?")

  • Create lightweight sales collateral and demo materials

  • Work with BD to identify outreach channels and partnership opportunities

  • Plan pricing hypotheses and validate willingness to pay

5) Own the narrative & stakeholder alignment

  • Communicate progress, learnings, and pivots clearly to leadership

  • Build conviction internally for continued investment (or recommend sunsetting)

  • Represent the product externally at conferences, calls, and in content

Success looks like (first 6–12 months)

This is not about MRR or DAUs yet. It's about validation:

  • Design partners secured: 2–5 committed partners actively testing with you

  • Validated problem-solution fit: Clear evidence that the wedge solves a real pain

  • Letters of intent or paid pilots: Early revenue signals, even if small

  • Hypothesis log: Documented learnings — what worked, what didn't, what pivoted

  • GTM playbook draft: Initial positioning, ICP, and channel strategy ready to scale

  • Team alignment: Engineering, BD, and leadership aligned on next phase

Requirements

  • 3+ years in Product Management, with at least 1 year in a 0→1 or early-stage environment (startup, new product line, or venture studio)

  • Demonstrated ability to find product-market fit through customer discovery, not just feature shipping

  • Strong customer development skills: you've done hundreds of customer interviews and can synthesize patterns

  • Comfortable with high ambiguity: no roadmap handed to you, limited data, fast pivots

  • Excellent written and verbal communication — you can pitch, write specs, and run customer calls

  • Familiarity with crypto/Web3: wallets, DeFi basics, on-chain payments, developer tooling

  • Bias to action: you ship scrappy MVPs and learn, rather than waiting for perfect specs

Nice to have

  • Experience with payments infrastructure (Stripe, payment rails, billing systems)

  • Familiarity with AI/agent products and how agents interact with APIs and wallets

  • Understanding of account abstraction (ERC-4337), intent-based architectures, or x402 protocol

  • Background in B2B developer tools or platform/marketplace products

  • Existing network in the crypto/Web3 ecosystem (infra providers, protocols, VCs)

Why this role is different

  • You're not inheriting an established product with existing users — you're building from scratch

  • You'll have real ownership and influence on product direction

  • You'll work on the frontier of AI + crypto + payments — an emerging category with massive TAM

  • Nethermind brings credibility, security expertise, and ecosystem relationships — but you bring the product instincts

Working model

Remote-first, globally distributed team.

Top Skills

Account Abstraction
AI
Crypto
Developer Tooling
Erc-4337
On-Chain Payments
Payments Infrastructure
Web3
X402 Protocol
Am I A Good Fit?
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The Company
London
163 Employees
Year Founded: 2017

What We Do

Nethermind has a world class team of builders and researchers with expertise in Ethereum, protocol engineering, layer 2 scaling, decentralized finance, smart contracts development and enterprise blockchain. We provide technology, R&D and consulting services for blockchain and DeFi businesses. The Nethermind team actively contributes to Ethereum core development and supports many Ethereum projects to help further develop the ecosystem. Working with amazing partners such as StarkWare, POA, EWF, Baseline, Provide and many more, Nethermind is building the future of blockchain and DeFi. Build with Nethermind. Github: https://github.com/NethermindEth Contact us on: [email protected] For technical assistance, join us on our Discord: https://discord.gg/PaCMRFdvWT

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