Quidax

Full-stack Engineer

• Build & Own Critical Trading Services
• Design, build, deploy, and operate scalable Java services powering trading, pricing, execution, and liquidity
• Own critical backend services end to end, from architecture and implementation to production support and continuous improvement
• Build systems that remain reliable under heavy traffic, partial failures, and changing market conditions
• Develop and improve order management, execution, pricing, market data, and liquidity management capabilities
• Build and maintain integrations with exchanges, liquidity providers, custodians, payment providers, and other external platforms
• Improve execution quality through better pricing accuracy, spreads, fill rates, liquidity availability, and reduced slippage
• Design reliable order lifecycles covering validation, routing, execution, settlement, reconciliation, cancellations, retries, and recovery
• Ensure financial correctness across balances, positions, fees, and settlements through precision, idempotency, consistency, and auditability
• Build distributed systems that behave correctly under concurrency, retries, duplicate events, and eventual consistency
• Continuously improve system performance, resilience, observability, throughput, and operational readiness
• Investigate production incidents, perform root cause analysis, and implement preventive improvements
• Participate in architecture and technical design decisions across the Trading & Liquidity squad
• Review code, mentor engineers, and help raise engineering standards across the team
• Collaborate closely with Product, Platform, QA, Security, Compliance, Risk, Finance, and Operations to deliver reliable financial systems

Senior Software Engineer – Trading, Liquidity

Financial Planning and Analysis

• Own monthly, quarterly, and annual close across multiple entities, accurate, complete, and on time
• Prepare and review entity-level and consolidated financial statements (P&L, balance sheet, cash flow)
• Ensure consistency and correctness across intercompany accounts, eliminations, and reconciliations
• Maintain strong close discipline as transaction volumes and business lines increase
• Own accounting for B2B products, contracts, and settlements, from revenue recognition to reconciliation
• Ensure accurate tracking of client balances, fees, commissions, and partner-related transactions
• Partner closely with Commercial, Ops, and Treasury to ensure financial data reflects reality on the ground
• Translate complex B2B flows into clean, auditable accounting entries
• Maintain tight internal controls across AP, AR, payroll, treasury, and interbusiness movements
• Ensure proper accounting treatment for crypto-related transactions (valuation, custody, fees, taxes)
• Continuously improve accounting processes to reduce manual work as volumes grow
• Support budgeting and forecasting with reliable, entity-level financial data
• Track variances and provide clear, business-relevant explanations
• Support the CFO with ad-hoc analysis tied to growth, pricing, and B2B performance
• Support audits, tax filings, and statutory reporting across multiple jurisdictions
• Stay current on accounting, fintech, and crypto regulatory requirements
• Flag financial risks early, especially those that scale with volume and complexity

Senior Financial Accountant

Product Manager

• Know the platform, and the people who use it
• First 90 days: get deep on the API. Make test calls, read the docs like a merchant would, and find every spot where integration hurts.
• Sit with our biggest merchants. Learn why they use us. Map the full journey, from first API call to first live transaction, and mark where people drop off.
• Own the roadmap for the API
• Make the calls on what we build, what we kill, and what we say no to (kindly).
• Own pricing and packaging too. Price it so merchants win and so do we.
• Ship it, and keep it boringly reliable
• Run delivery with Engineering using rituals that stick: sprints, retros, the good stuff.
• Grow the number of live merchants and the volume flowing through the API, and have the numbers to back it up.
• Hold the line on uptime, security, and compliance.
• Merchants move their customers' money through us. "Mostly works" isn't a thing.
• Make integration super simple (the Enablement bit)
• Cut time-to-first-transaction. The faster a merchant goes live, the better the product.
• Build docs, sandboxes, and support materials so good that merchants barely need to email us.
• Give Sales, Solutions, and Support what they need to win deals and keep merchants happy.

Product Manager – APIs, Mid-Level/Senior

Technical Product Manager

• Know the platform, and the people who use it
• First 90 days: get deep on the API. Make test calls, read the docs like a merchant would, and find every spot where integration hurts.
• Sit with our biggest merchants. Learn why they use us.
• Map the full journey, from first API call to first live transaction, and mark where people drop off.
• Own the roadmap for the API
• Make the calls on what we build, what we kill, and what we say no to (kindly).
• Own pricing and packaging too.
• Price it so merchants win and so do we.
• Ship it, and keep it boringly reliable
• Run delivery with Engineering using rituals that stick: sprints, retros, the good stuff.
• Grow the number of live merchants and the volume flowing through the API, and have the numbers to back it up.
• Hold the line on uptime, security, and compliance.
• Merchants move their customers' money through us. "Mostly works" isn't a thing.
• Make integration super simple (the Enablement bit)
• Cut time-to-first-transaction.
• The faster a merchant goes live, the better the product.
• Build docs, sandboxes, and support materials so good that merchants barely need to email us.
• Give Sales, Solutions, and Support what they need to win deals and keep merchants happy.

• Know the platform, and the people who use it
• Own the roadmap for the API
• Ship it, and keep it boringly reliable
• Grow the number of live merchants and the volume flowing through the API, and have the numbers to back it up.
• Make integration super simple (the Enablement bit)

Senior Product Manager – APIs

• Know the platform, and the people who use it
• First 90 days: get deep on the API. Make test calls, read the docs like a merchant would, and find every spot where integration hurts.
• Sit with our biggest merchants. Learn why they use us.
• Map the full journey, from first API call to first live transaction, and mark where people drop off.
• Own the roadmap for the API
• Make the calls on what we build, what we kill, and what we say no to (kindly).
• Own pricing and packaging too. Price it so merchants win and so do we.
• Ship it, and keep it boringly reliable
• Run delivery with Engineering using rituals that stick: sprints, retros, the good stuff.
• Grow the number of live merchants and the volume flowing through the API, and have the numbers to back it up.
• Hold the line on uptime, security, and compliance. Merchants move their customers' money through us. "Mostly works" isn't a thing.
• Make integration super simple (the Enablement bit)
• Cut time-to-first-transaction. The faster a merchant goes live, the better the product.
• Build docs, sandboxes, and support materials so good that merchants barely need to email us.
• Give Sales, Solutions, and Support what they need to win deals and keep merchants happy.

Senior Software Engineer – Trading, Liquidity

Senior Financial Accountant

Product Manager – APIs, Mid-Level/Senior

Technical Product Manager

Senior Product Manager – APIs

Senior Product Manager, Merchant Platform – Enablement