Senior Software Engineer, Payments & Ledger

BetterPool

. Design and grow Splash’s double-entry ledger and wallet services .

Posted 10/13/2026full-timeRemote • United StatesSenior💰 $150,000 - $185,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in backend engineering with a focus on payment systems, ledger design, and compliance in regulated real-money gaming. Proficient in integrating payment processors and implementing fraud controls while ensuring robust financial reporting and reconciliation.

Highest-signal resume keywords

Backend Engineering ExperiencePayment Processor IntegrationLedger System DesignFraud and Risk ControlsSQL Proficiency

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

NodeJSTypeScriptPostgreSQLSQLAutomated TestingEvent-Driven SystemsAPI ManagementAccounting BasicsFraud ControlsGeolocation Compliance

Tools & Technologies

AWSSnowflakeDbtGitSQSSNSKafka

Certifications & Qualifications

Computer Science Degree

Industry Keywords

Real-Money GamingDFSSportsbookIGamingPeer-to-Peer ContestsEscrow AccountsCustodial AccountsResponsible Gaming ControlsTax ReportingPCI Compliance

Tech Stack

Tools & technologies

AWSKafkaNode.jsPostgresReactSQLTypeScript

About the role

Key responsibilities & impact

Design and grow Splash’s double-entry ledger and wallet services
Own account structures for player cash, promotional balances, contest escrow, house accounts, and processor clearing
Build payment flows for cards and ACH and integrate future payment processors
Manage API versioning, idempotent APIs, webhook handling, retries, refunds, chargebacks, and payout orchestration
Own accounting for entry fees, rake, prize pools, promotions, and private contest fees
Implement real-time fraud and risk checks for deposits, withdrawals, and contest entries
Work with Trust and Safety on cases requiring human review
Automate daily three-way reconciliation among the ledger, processor settlement reports, and bank statements
Feed ledger and transaction data into Snowflake and dbt for finance reporting
Ensure exactly-once posting, safe concurrency, and regulator- and processor-ready audit trails
Participate in on-call rotations for payment systems
Collaborate directly with Finance, Compliance, game operations, marketing, Trust and Safety, and engineering teams in the US and Prague

Requirements

What you’ll need

5+ years of backend engineering experience
At least 2 years on production payments, fintech, wallet, or ledger systems that moved real money
Familiarity with and passion for regulated real-money gaming such as DFS, sportsbook, iGaming, or peer-to-peer contests
Experience with state-by-state compliance and geolocation is a bonus
Hands-on experience designing a ledger system
Understanding of accounting basics including debits and credits, chart of accounts, accruals, authorization versus settlement, and reconciliation
Experience integrating payment processors, including webhooks, idempotency keys, chargebacks, and settlement reports
Experience building or running fraud and risk controls, including rules engines, velocity checks, KYC and AML vendor integrations, and manual review tools
Proficiency with NodeJS and TypeScript
Deep knowledge of relational databases, ideally PostgreSQL
Understanding of isolation levels and locking, and designing schemas for append-only financial data
Strong SQL skills
Experience running scalable, highly available services in AWS, including PostgreSQL on RDS
Strong automated testing habits, including property-based or invariant tests for financial logic
Familiarity with Git and the standard toolkit
A computer science degree or equivalent experience
Experience with escrow or custodial account models is nice to have
Exposure to responsible gaming controls and tax reporting (W-2G, 1099) is nice to have
Experience with event-driven systems using SQS/SNS or Kafka, plus outbox patterns, is nice to have
Familiarity with Snowflake and dbt, or experience partnering with data teams on finance reporting, is nice to have
Proficiency with React for internal tools is nice to have
Ability to work remotely while based in the United States
Ability to participate in on-call rotations, including during major sporting weekends
PCI-aware handling of payment data and least-privilege access to financial systems

Benefits

Comp & perks

Potential to earn equity in the company
Medical, Dental, & Vision Insurance
401K/Retirement Plan Options
Flexible PTO
Annual company retreats & team offsites
Frequent company-wide games with cash prizes
Opportunity to help build products for millions of fans across the country