Senior Software Engineer, Payments and Fintech

Senior Software Engineer, Payments / Fintech

Job Description

We are seeking a highly skilled Senior Software Engineer to join our FinTech team and help design, build, and scale high-quality global software solutions that handle high-volume payment processing and fund distribution. In this role, you will collaborate closely with product managers, finance, compliance, engineering peers, and QA partners to drive technical initiatives and ensure money flows reliably, securely, and on time across the platform meeting or exceeding strict performance and regulatory standards.

This role is ideal for engineers who are innovative and growth-minded, while also having a strong appreciation for financial regulations, controls, and operational rigor.

WHAT YOULL DO

As a Senior Software Engineer on our team, you will:

• Design, implement, and maintain reliable systems for processing payments, scheduling payouts, and reconciling transactions.
• Ensure funds distribution occurs on time and at scale, supported by strong SLAs, monitoring, and alerting.
• Collaborate with Finance, Compliance, and Product teams to build features that meet regulatory, tax, and reporting requirements.
• Integrate with third-party payment processors, banks, and financial networks (ACH, wire transfers, card processors, digital wallets).
• Architect systems with a focus on auditability, security, fault tolerance, and resiliency across distributed services.
• Implement and enhance automated reconciliation, ledgering, and financial reporting pipelines.
• Lead technical discussions related to scalability, reliability, and fraud prevention in payment systems.
• Work closely with internal and external integration partners, participate in code reviews, and promote engineering best practices.
• Drive improvements in CI/CD pipelines, monitoring, observability, and operational workflows for financial systems.

WHAT WERE LOOKING FOR

• 5+ years of experience building backend systems, with at least 2 years operating in a senior or lead capacity.
• Strong proficiency in C#, ASP.NET (Web API), and SQL Server.
• Hands-on experience with payment processing, banking integrations, or financial transaction platforms.
• Deep understanding of databases and transactional integrity (SQL Server, PostgreSQL, MySQL, or NoSQL systems).
• Experience with event-driven architectures, messaging systems, and schedulers (Kafka, RabbitMQ, SQS/SNS, etc.).
• Familiarity with cloud platforms (AWS, Azure, or GCP), containerization (Docker, Kubernetes), and infrastructure-as-code.
• Knowledge of payment security and compliance standards (PCI DSS, SOC 2, GDPR).
• Strong communication skills and ability to collaborate effectively across engineering, finance, compliance, and business teams.
• Bachelors or Masters degree in Computer Science, Engineering, or equivalent professional experience.

BONUS POINTS

• Experience with Node.js, TypeScript, and Angular.
• Mobile development experience (.NET MAUI, Objective-C, Android, etc.).
• Hands-on work with ACH, SEPA, card networks, or real-time payment rails.

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• Background in ledgering systems, accounting workflows, or treasury operations.
• Familiarity with fraud detection, monitoring, and risk mitigation strategies.

WORK LOCATION

Fully Remote: This role is designated as fully remote and is expected to be performed from a non-corporate worksite, typically an employees residence. Occasional travel may be required, ranging from domestic to limited international travel.

“Benefit offerings include medical, dental, vision, life insurance, short-term disability, additional voluntary benefits,

EAP program, commuter benefits, and 401K plan. Our program provides employees the flexibility to choose the type

of coverage that meets their individual needs. Available paid leave may include Paid Sick Leave, where required by

law; any other paid leave required by Federal, State, or local law; and Holiday pay upon meeting eligibility criteria.”

“Equal Opportunity Employer/Veterans/Disabled

To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to https://www.lhh.com/us/en/candidate-privacy

The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable:

• The California Fair Chance Act

• Los Angeles City Fair Chance Ordinance

• Los Angeles County Fair Chance Ordinance for Employers

• San Francisco Fair Chance Ordinance”