Remote Senior Backend Engineer – FinTech Platform

Flex group; New York (NY); Hybrid; USD 146,200 - 215,000; Full time

Benefits offered by this job

Company equity

401(k) with company match

Unlimited paid time off

Parental leave

Free Flex subscription

Job summary

Flex, a NYC-based FinTech company, seeks a Senior Software Engineer (Backend) to own backend systems powering payment, billing and identity services. You will design, implement, test, and scale APIs with a focus on distributed, fault-tolerant systems and data pipelines.

The role requires leadership in API scoping and production rollouts in an agile environment. Ideal candidates have 6+ years in software engineering, 4+ years with Java, and strong experience with Spring, REST, AWS, CI/CD and

Qualifications

• Minimum of 6 years experience in software engineering.
• Minimum of 4 years experience with Java.
• Ability to work on a globally distributed team with ownership.
• Experience with SOA, REST APIs, message queues, scalable architectures.

Responsibilities

• Implement backend systems and services powering FinTech features.
• Design, develop, test, and scale APIs and integrations.
• Lead scoping and design for APIs and drive production rollouts.

Skills

Java

Spring

REST APIs

AWS

CI/CD

Data pipelines

Distributed systems

Observability

Team leadership

Tools

GitHub Actions

Kubernetes

Gradle

JUnit

Docker

Job description

Flex, a NYC-based FinTech company, seeks a Senior Software Engineer (Backend) to own backend systems powering payment, billing and identity services. You will design, implement, test, and scale APIs with a focus on distributed, fault-tolerant systems and data pipelines.

The role requires leadership in API scoping and production rollouts in an agile environment. Ideal candidates have 6+ years in software engineering, 4+ years with Java, and strong experience with Spring, REST, AWS, CI/CD and