Polygon Labs

Lead Solutions Engineer

Polygon Labs

full-time

Posted on:

Location Type: Remote

Location: United States

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Job Level

Senior

Tech Stack

Distributed Systems

About the role

  • Support BD in late-stage deals and technical evaluations
  • Lead technical discovery with customers, focusing on complex legacy payments, fund flows, and compliance
  • Align customer business models (tradfi, fintech, platforms, embedded finance, global payments) with scalable payment architectures
  • Translate customer business and system requirements into implementation plans
  • Design and explain integrations for:
  • Wallets
  • Payments APIs
  • KYC/KYB, onboarding, risk, and compliance
  • Widgets, SDKs, hosted components, and embedded payment experiences
  • Develop reference architectures, integration diagrams, payment flow documentation, and technical walkthroughs
  • Serve as the technical authority in customer discussions when needed
  • Demonstrate expertise in payment authorization rates, conversion optimization, and transaction success metrics
  • Identify gaps between current product capabilities and customer needs
  • Clearly separate what exists, what’s on the roadmap (and can be accelerated), and what requires custom or speculative development
  • Clarify ambiguous customer requests into clear, marketable technical scopes
  • Negotiate tradeoffs with customers to close deals when requirements don’t fully align
  • Collaborate with Sales to resolve payment integration risks early and unblock deals
  • Work with Product and Engineering to guide roadmap decisions based on customer demand
  • Influence pricing, limits, and launch phases based on technical constraints
  • Build lightweight prototypes, middleware, or example implementations where helpful
  • “Vibe code” small systems or applets to rapidly prototype and unblock integrations or demonstrate feasibility
  • Read and reason about customer codebases, API specs, and architecture diagrams
  • Help customers understand how to integrate with modern systems when their internal infrastructure is outdated or rigid
  • Anticipate scale, failure modes, and operational complexity in production payments systems
  • Support initial customer implementations and early production issues
  • Act as a technical escalation point when integrations hit complexity
  • Help define what scalable post-sales support should look like over time

Requirements

  • Strong background in payments, fintech, or financial infrastructure
  • Hands-on familiarity with fund flows, settlement, reconciliation, disputes, and money movement
  • Deep familiarity with legacy payment systems, fund flows, and real-world integration constraints
  • Prior experience in Solutions Engineering, Sales Engineering, or highly technical pre-sales roles at payments companies
  • Proven ability to operate independently with minimal guidance
  • Strong customer empathy and the ability to explain complex systems clearly
  • Comfortable coding and building small technical solutions or prototypes
  • Solid understanding of APIs, webhooks, payment integrations, and system architecture
  • Distributed systems experience helpful but not required
Benefits
  • Remote first global workforce
  • Industry leading Medical, Dental and Vision health insurance*
  • Company matching 401k with 3% match*
  • $1,500 Home Office Set Up Allowance (life-time max)
  • $200 Annual Book Allowance Program
  • $75 Monthly internet or phone reimbursement
  • Flexible Time Off
  • Company issued laptop
  • Egg freezing, mental health, and employee wellness benefits
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
paymentsfintechfinancial infrastructurefund flowssettlementreconciliationdisputesAPIswebhookssystem architecture
Soft Skills
customer empathyindependent operationclear communicationnegotiationcollaboration