Sezzle

Infrastructure Engineer

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Senior Security Infrastructure Engineer

• Lead and operate vulnerability management across infrastructure, platforms, and applications
• Build, operate, and mature SIEM/XDR capabilities
• Investigate and respond to security incidents
• Design and implement detection strategies for suspicious activity
• Drive infrastructure and CI/CD hardening initiatives

Program Manager

• Work cross-functionally with IT, Legal, and Compliance teams to establish and maintain third-party risk standards and governance practices.
• Conduct comprehensive vendor due diligence and ongoing monitoring activities, including evaluating consumer-impact risk, complaint analysis, and confirming privacy and data protection standards.
• Manage third-party risk documentation and reporting, including maintaining the vendor and data processor inventory, ensuring timely onboarding and offboarding due diligence, and executing periodic compliance reviews.
• Execute day-to-day risk assessments to determine vendor criticality and identify inherent risks in categories such as PII handling, BSA/AML, and credit decisioning.
• Work cross-functionally with Legal to ensure effective contracts are in place and with Information Security to validate the technical safeguards of our third-party partners.
• Identify, track, and escalate risk events or performance failures to senior leadership and bank partners through established issue-tracking systems.

Vendor Management Program Manager

• Standards & Governance: work cross-functionally with IT, Legal, and Compliance teams to establish and maintain third-party risk standards and governance practices.
• Due Diligence & Monitoring: Conduct comprehensive vendor due diligence and ongoing monitoring activities, including evaluating consumer-impact risk, complaint analysis, and confirming privacy and data protection standards.
• Documentation & Reporting: Manage third-party risk documentation and reporting, including maintaining the vendor and data processor inventory, ensuring timely onboarding and offboarding due diligence, and executing periodic compliance reviews.
• Risk Assessment: Execute day-to-day risk assessments to determine vendor criticality and identify inherent risks in categories such as PII handling, BSA/AML, and credit decisioning.
• Collaboration: Work cross-functionally with Legal to ensure effective contracts are in place and with Information Security to validate the technical safeguards of our third-party partners.
• Issue Escalation: Identify, track, and escalate risk events or performance failures to senior leadership and bank partners through established issue-tracking systems.

Engineer

• Design and build backend services in Golang that integrate with payment processors and gateways
• Own critical money-movement flows end to end: authorization, capture, settlement, refunds, reconciliation, and chargeback/dispute handling
• Operate within PCI DSS scope
• Instrument and monitor payment health
• Mentor engineers and help raise the bar across the team.

Senior Payments Engineer – Acquiring, Payment Processing

• Design and build backend services in Golang that integrate with payment processors, gateways, and card networks
• Own critical money-movement flows end to end: authorization, capture, settlement, refunds, reconciliation, and chargeback/dispute handling
• Build idempotent, fault-tolerant, auditable transaction processing within a distributed architecture (transactional outbox patterns; queues such as Kafka, SQS, or RabbitMQ)
• Operate within PCI DSS scope — tokenization, network tokens, secure handling of payment data, and 3DS/SCA flows where applicable
• Instrument and monitor payment health: authorization/decline rates, processor performance, latency, and settlement accuracy, driving continuous improvement
• Use AI tooling (Claude and equivalent LLMs) as part of your daily workflow to accelerate design, coding, research, testing, and documentation — within Sezzle's security and data-handling policies
• Mentor engineers and help raise the bar across the team
• Demonstrated experience working with Claude or equivalent large language model tools is required; candidates must be comfortable leveraging AI to enhance productivity, research, and communication.

• Design and build backend services in Golang that integrate with payment processors, gateways, and card networks
• Own critical money-movement flows end to end: authorization, capture, settlement, refunds, reconciliation, and chargeback/dispute handling
• Build idempotent, fault-tolerant, auditable transaction processing within a distributed architecture (transactional outbox patterns; queues such as Kafka, SQS, or RabbitMQ)
• Operate within PCI DSS scope — tokenization, network tokens, secure handling of payment data, and 3DS/SCA flows where applicable
• Instrument and monitor payment health: authorization/decline rates, processor performance, latency, and settlement accuracy, driving continuous improvement
• Use AI tooling (Claude and equivalent LLMs) as part of your daily workflow to accelerate design, coding, research, testing, and documentation — within Sezzle's security and data-handling policies
• Mentor engineers and help raise the bar across the team

• Design and build backend services in Golang that integrate with payment processors
• Own critical money-movement flows end to end
• Build idempotent, fault-tolerant, auditable transaction processing within a distributed architecture
• Operate within PCI DSS scope
• Instrument and monitor payment health

• Design and build backend services in Golang that integrate with payment processors, gateways, and card networks
• Own critical money-movement flows end to end: authorization, capture, settlement, refunds, reconciliation, and chargeback/dispute handling
• Build idempotent, fault-tolerant, auditable transaction processing within a distributed architecture (transactional outbox patterns; queues such as Kafka, SQS, or RabbitMQ)
• Operate within PCI DSS scope — tokenization, network tokens, secure handling of payment data, and 3DS/SCA flows where applicable
• Instrument and monitor payment health: authorization/decline rates, processor performance, latency, and settlement accuracy, driving continuous improvement
• Use AI tooling (Claude and equivalent LLMs) as part of your daily workflow to accelerate design, coding, research, testing, and documentation — within Sezzle's security and data-handling policies
• Mentor engineers and help raise the bar across the team.

• Design and build backend services in Golang
• Own critical money-movement flows end to end
• Build idempotent, fault-tolerant, auditable transaction processing
• Operate within PCI DSS scope
• Instrument and monitor payment health

Senior Payments Engineer – Acquiring & Payment Processing

Financial Planning and Analysis

• Own end-to-end preparation and filing of bank regulatory reports, including FFIEC Call Reports (031/041/051), and other required filings with the OCC, FDIC, and other applicable regulators.
• Build and maintain the regulatory reporting framework, including reporting calendars, data sourcing workflows, reconciliation procedures, and internal controls to ensure accuracy and completeness.
• Interpret and apply regulatory reporting instructions (FFIEC, OCC, FDIC, Federal Reserve) to Sezzle's unique business model, ensuring proper classification and reporting of BNPL-related assets, liabilities, income, and capital.
• Monitor and implement changes to regulatory reporting requirements, including new or revised schedules, reporting thresholds, and interpretive guidance.
• Collaborate cross-functionally with Accounting, FP&A, Treasury, Legal, Compliance, and Engineering to source data, resolve reporting questions, and ensure consistency between regulatory filings and GAAP financial statements.
• Support regulatory examinations and audits by providing documentation, responding to examiner inquiries related to Call Report data, and remediating findings as needed.
• Partner with external auditors and consultants on regulatory reporting matters, including agreed-upon procedures and attestation engagements.
• Develop and maintain documentation of regulatory reporting policies, procedures, and methodologies to support SOX compliance and institutional knowledge.
• Leverage technology and automation to improve the accuracy, efficiency, and scalability of the regulatory reporting process. Champion the use of AI and modern tools to streamline data aggregation, validation, and submission workflows.
• Provide regulatory reporting expertise to leadership on the financial reporting implications of new products, strategic initiatives, and changes to Sezzle's banking operations.

Regulatory Financial Reporting Manager

Analyst

• Conduct daily reviews of high-risk P2P transfers and cash advance requests to identify fraudulent activity. Investigate suspicious accounts and take appropriate action (e.g., freezing accounts, declining transactions).
• Analyze fraud patterns and emerging trends to identify gaps in current defenses. Work closely with the Risk Strategy team to recommend and test new fraud rules and machine learning model features.
• Investigate complex fraud cases involving social engineering scams, unauthorized access (ATO), and first-party/friendly fraud specific to instant money movement.
• Create and maintain dashboards tracking key fraud metrics (e.g., false positive rates, fraud loss rates, operational SLAs) and report findings to leadership.

Fraud Analyst – P2P, Cash Advance

Recruitment

• Own the full-cycle recruiting process for technical and non-technical roles — from intake and sourcing through offer and close.
• Design and continuously improve talent acquisition processes, frameworks, and tooling.
• Partner closely with hiring managers and business leaders to understand workforce needs, build proactive talent pipelines, and act as a trusted advisor.
• Ensure a consistently excellent, human-centered candidate experience throughout the hiring journey.
• Stay current on market trends, compensation benchmarks, and talent availability across Turkey’s technology and fintech ecosystem.

Tech Recruiter

QA Engineer

• Design, write, and execute test plans for new features, regression cycles, and edge-case scenarios across mobile (iOS/Android), web, and API
• Catch issues in requirements and designs before engineering begins — not after
• Maintain and improve test coverage documentation so the team always knows what's tested and what isn't
• Triage and reproduce bugs with enough detail that engineers can act immediately — no back-and-forth
• Participate in sprint planning and design reviews to identify gaps and risks early
• Raise quality concerns through appropriate channels, with clear reasoning and suggested mitigations — not just "this feels wrong"
• Monitor post-release behavior and surface regressions before customers do
• Suggest improvements to QA processes, tooling, and test infrastructure when you see a better path
• Test for what the spec says and what it doesn't — UX consistency, copy accuracy, accessibility, and real-world user flows
• Cross-reference acceptance criteria against actual behavior meticulously, flagging ambiguities rather than making assumptions
• Use Claude or other AI tools to generate comprehensive test cases from requirements, PRDs, or acceptance criteria — then apply your own judgment to refine and extend them
• Prompt AI tools to identify edge cases, boundary conditions, and failure scenarios that might not be obvious from the spec alone
• Use AI to validate expected behavior by asking it to reason through a user flow or business rule — surfacing logical gaps before testing even begins
• Draft and iterate on bug reports, test plans, and coverage documentation with AI assistance to produce clearer, more thorough output faster
• Stay current on how AI tools can improve QA workflows and bring new ideas to the team

Product QA Tester – Mid-Level

Chief Operating Officer

• Manage day-to-day banking operations, partnering closely with product and engineering on strategy and design.
• Assist with optimization of cash movement processes and settlement timing.
• Monitor ACH, wire, RTP, card settlement, and other payment activities to ensure timely processing and settlement.
• Oversee funding flows, merchant payouts, customer repayments, and operational cash movements.
• Investigate and resolve payment exceptions, returns, rejects, and settlement discrepancies.
• Support new bank integrations, account openings, and banking partner/vendor onboarding activities.
• Oversee operational performance of customer servicing and collections activities, ensuring alignment with company policies, regulatory requirements, and customer experience objectives.
• Monitor servicing workflows related to payment processing, delinquency management, hardship accommodations, account maintenance, and customer communications.
• Partner with internal teams and third-party servicing or collections vendors to ensure service level agreements (SLAs), performance metrics, and compliance standards are consistently met.
• Review delinquency trends, collection effectiveness, cure rates, roll rates, and operational KPIs to identify opportunities for improvement.
• Support implementation and monitoring of collections strategies, including payment reminders, recovery initiatives, and loss mitigation programs.
• Ensure servicing and collections processes comply with applicable consumer protection laws, regulatory guidance, and internal controls.
• Collaborate with Risk, Compliance, Legal, and Product teams to enhance servicing operations and improve customer outcomes.
• Assist in vendor oversight, audits, and performance reviews related to servicing and collections partners.
• Serve as the primary operational relationship manager for banking partners, payment processors, servicing providers, collections agencies, and other critical third-party vendors.
• Monitor vendor performance against contractual obligations, service level agreements (SLAs), key performance indicators (KPIs), and operational standards.
• Conduct regular vendor reviews to assess operational effectiveness, compliance adherence, customer outcomes, and risk management practices.
• Support audits, regulatory examinations, and compliance reviews.

Senior Security Infrastructure Engineer

Senior Security Infrastructure Engineer

Vendor Management Program Manager

Vendor Management Program Manager

Senior Payments Engineer – Acquiring, Payment Processing

Senior Payments Engineer – Acquiring, Payment Processing

Senior Payments Engineer – Acquiring, Payment Processing

Senior Payments Engineer – Acquiring, Payment Processing

Senior Payments Engineer – Acquiring, Payment Processing

Senior Payments Engineer – Acquiring & Payment Processing

Regulatory Financial Reporting Manager

Fraud Analyst – P2P, Cash Advance

Tech Recruiter

Product QA Tester – Mid-Level

Chief Operations Officer