Senior Test Infrastructure Engineer

MassMutual Ventures; New York (NY); On-site; USD 140,000 - 210,000; Full time

Job summary

Farther is seeking a Software Engineer, Test Infrastructure (SETI) to design and build tooling and pipelines that keep our TypeScript codebase fast to test and safe to ship. You will develop testing frameworks, mock utilities, and scalable CI/CD processes across frontend and backend systems, aligning with reliability standards for financial services.

You will collaborate with engineering teams to ensure testability, instrument deployments, and maintain high signal quality.

Qualifications

• 5+ years of software engineering with a focus on testing infrastructure.
• Strong proficiency in TypeScript/JavaScript and modern testing frameworks (Jest, Vitest, Cypress, Playwright).
• Experience building and maintaining CI/CD pipelines (GitHub Actions, Jenkins, or similar).
• Experience with infrastructure as code (CDK, Terraform, or similar).
• Solid understanding of test automation patterns, mocking strategies, and test environment management.
• AWS Infra & Deployment experience.
• Experience with containerization and orchestration for test environments.
• Knowledge of database testing strategies and test data management.
• Strong foundation in software engineering principles and system design.
• Experience with monitoring and observability tools for test infrastructure.
• Excellent problem-solving skills and ability to debug complex testing issues.
• Strong written communication skills and documentation practices.

Responsibilities

• Design, build, and maintain robust tooling and testing infrastructure to support engineering workflows across frontend and backend systems.
• Create comprehensive automation frameworks for unit, integration, and end-to-end testing using Jest, Playwright, Vitest, and Cypress.
• Build intelligent CI/CD pipelines with file-change tracking and parallelization strategies.
• Develop utilities for mocking APIs and spinning up isolated testing environments mirroring production.
• Monitor test reliability and performance metrics to improve feedback speed.
• Collaborate with engineers to ensure code is testable and properly instrumented for deployments.
• Create documentation and onboard teams to test architecture and developer workflows.
• Drive technical decisions for testing infrastructure supporting trading systems and portfolio management.

Skills

TypeScript/JavaScript

Testing frameworks

CI/CD pipelines

Infrastructure as code

AWS

Containerization

Test data management

Debugging

Tools

Jest

Playwright

Vitest

Cypress

GitHub Actions

Jenkins

CDK

Terraform

Docker

Kubernetes

Datadog

Job description

Farther is seeking a Software Engineer, Test Infrastructure (SETI) to design and build tooling and pipelines that keep our TypeScript codebase fast to test and safe to ship. You will develop testing frameworks, mock utilities, and scalable CI/CD processes across frontend and backend systems, aligning with reliability standards for financial services.

You will collaborate with engineering teams to ensure testability, instrument deployments, and maintain high signal quality.