Full Stack Developer (React, Redux, Python)

About Us

SentiLink provides innovative identity and risk solutions, empowering institutions and individuals to transact confidently with one another.

By building the future of identity verification in the United States and reinventing the currently clunky, ineffective, and expensive process, we believe strongly that the future will be 10x better.

We’ve had tremendous traction and are growing extremely quickly. Already our real-time APIs have helped verify hundreds of millions of identities, beginning with financial services. In 2021, we raised a $70M Series B round, led by Craft Ventures to rapidly scale our best in class products. We’ve earned coverage and awards from TechCrunch, CNBC, Bloomberg, Forbes, Business Insider, PYMNTS, American Banker, LendIt, and have been named to the Forbes Fintech 50 list consecutively since 2023. Last but not least, we’ve even been a part of history -- we were the first company to go live with the eCBSV and testified before the United States House of Representatives.

About The Opportunity

As a Full Stack Engineer, you will be responsible for the development and maintenance of our web application and platform used for Fraud analysis. This role will be frontend-heavy, with a focus on building out BFF APIs to serve data to the frontend. You’ll work closely with Product & Design, Solutions Engineering, Data Science, Infrastructure, and Data Platform teams to build and enhance products. You will have the opportunity to contribute significantly to both the user interface and the backend systems that power it.

Technologies: React, Redux, Vite, Golang, Python, OpenSearch, PostgreSQL (RDS), Docker, AWS technologies (Lambda, Cognito, and others)

Responsibilities

• Develop and maintain frontend applications using modern technologies (React, Redux, Vite), collaborating with UI/UX designers to build responsive and user-friendly interfaces.
• Design and build BFF APIs tailored for frontend consumption, ensuring smooth and optimized communication between the frontend and backend services.
• Collaborate closely with frontend teams to ensure APIs are efficient, meet the UI’s data needs, and are easy to integrate.
• Work with Product Management and Design teams to translate business requirements and user needs into technical solutions, ensuring the frontend development aligns with product goals.
• Write automated unit and integration tests for both frontend and backend code to maintain high-quality standards.
• Participate in code reviews to maintain coding standards, best practices, and to ensure consistency between frontend and backend systems.
• Use Agile/Scrum methodologies to drive the development process and ensure timely delivery of features and fixes.
• Troubleshoot, debug, and resolve issues in both frontend and backend systems to ensure smooth application performance.
• Participate in cross-functional team collaboration to tackle complex technical problems and help shape future product features.
• Ensure platform reliability and performance, meeting agreed-upon SLA requirements; share on-call responsibilities with the engineering team for production issues.
  
  

Requirements

• 3+ years of experience in software development, with a strong focus on frontend development (React, Redux, Vite, or similar technologies).
• Proven experience with modern JavaScript frameworks (React, Angular, Vue.js, etc.), with a deep understanding of frontend principles (UI design, responsive design, state management, performance optimization).
• Strong experience in API-driven development, with an emphasis on BFF APIs that provide tailored data to the frontend, using Python, Golang, or similar backend technologies.
• Proficiency in frontend technologies (HTML5, CSS3, JavaScript) and the ability to build scalable, performant web applications.
• Solid experience with RDBMS (PostgreSQL), including writing efficient queries and optimizing data handling for frontend consumption.
• Familiarity with Docker and AWS technologies (Lambda, Cognito, etc.) to deploy and scale applications.
• Strong problem-solving and analytical skills with the ability to troubleshoot and debug both frontend and backend issues.
• Experience in Agile/Scrum development environments, with an ability to work iteratively and collaborate effectively across teams.
• Bonus: Experience with Fraud Prevention technologies or working in Financial Services is a big plus.
  
  

Perks

• Employer paid group health insurance for you and your dependents
• 401(k) plan with employer match (or equivalent for non US-based roles)
• Flexible paid time off
• Regular company-wide in-person events
• Home office stipend, and more!
  
  

Corporate Values

• Follow Through
• Deep Understanding
• Whatever It Takes
• Do Something Smart