Senior Software Engineer

Sardine

Senior Software Engineer developing backend services built in Golang for fraud prevention and AML compliance. Collaborating with financial institutions on compliance-focused products.

Posted 6/15/2026full-timeRemote • New York • 🇺🇸 United StatesSenior💰 $170,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudCypressGoGoogle Cloud PlatformJUnitMockito

About the role

Key responsibilities & impact

Design, implement, and maintain high-performance backend services built in Golang and deployed across Google Cloud Platform (GCP) and AWS, ensuring systems are robust and optimized for reliability and long-term maintainability
Collaborate with business stakeholders for development of compliance-focused products used by banks, fintechs, and other financial institutions, including products focused on financial risk, reconciliation, and fraud detection
Build and Implement API’s for banking or payment systems
Partner with cross-functional engineering and product teams to coordinate development efforts
Develop, refine, and maintain user-facing technical documentation, ensuring clarity, accuracy, and accessibility to support users
Own the full product lifecycle, including design, implementation, and end-to-end testing, using Cypress, Junit, or Mockito, ensuring reliable delivery, continuous improvement, and adherence to high quality standards throughout each development phase

Requirements

What you’ll need

Master’s degree in Computer Science or related field; plus 1 year of experience required in the following:
Integrating/Building API’s for banking or payment systems
Building products focused on financial risk, reconciliation, or fraud detection
Web Backend Development
Developing production application using Go (Golang)
Implementing end-to-end test automation using Cypress, Junit, or Mockito
AWS Cloud
Core banking integrations

Benefits

Comp & perks

Generous compensation in cash and equity
Early exercise for all options, including pre-vested
Work from anywhere: Remote-first Culture
Flexible paid time off and Year-end break
Health insurance, dental, and vision coverage for employees and dependents - *US and Canada specific*
4% matching in 401k / RRSP - *US and Canada specific*
MacBook Pro delivered to your door
One-time stipend to set up a home office — desk, chair, screen, etc.
Monthly meal stipend
Monthly social meet-up stipend
Annual health and wellness stipend
Annual Learning stipend

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

GolangAPI developmentend-to-end testingtest automationCypressJunitMockitoweb backend developmentcloud computingcore banking integrations

Soft Skills

collaborationcommunicationdocumentationproblem-solvingstakeholder engagementorganizational skillsattention to detailadaptabilityteamworkcontinuous improvement

Certifications

Master’s degree in Computer Science