Backend Software Engineer

ERGO NEXT Group INTERNAL•Waltham, MA

2d•Hybrid

About The Position

ERGO NEXT is hiring a Backend Software Engineer to support and own its Payments & Partnerships domain. The role works with modern backend technologies and programming languages, including server-side Kotlin, and delivers clean, testable code through a CI/CD pipeline that pushes to production several times a day. The engineer will collaborate with product, marketing, and front-end engineering teams to iterate quickly and find effective solutions. They will own features from inception and design through coding and production, maintaining high quality and test coverage. The role also uses AI- and LLM-powered tools to improve developer productivity and experimentation.

Requirements

At least 6 years of proven backend development experience.
Experience with Java, Kotlin, or similar languages such as Python or .NET.
A B.Sc. in Computer Science or equivalent.
Excellent knowledge and understanding of object-oriented programming concepts and best practices.
Experience working with relational databases and good SQL skills.
Adaptability, a willingness to learn new technologies quickly, and effectiveness in a dynamic environment.
Ability to work effectively across diverse domains and contexts.
Excellent interpersonal and communication skills.

Nice To Haves

Hands-on development experience in highly distributed, cloud-based environments.
Experience with AWS or another cloud platform.

Responsibilities

Support and own the Payments & Partnerships domain.
Collaborate with product, marketing, and front-end engineers to iterate on the product and solve challenges.
Own features from inception through design and coding to production, ensuring high quality and test coverage.
Use AI- and LLM-powered tools to improve developer productivity and experimentation.
Produce clean, testable code and deliver it through the CI/CD pipeline.