Senior Software Engineer - Scala & AWS (Legacy Modernization)

OpenKrill; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Unlimited PTO

Medical benefit contributions

Job summary

TrueML in the United States is seeking a senior software engineer to own and evolve mature, business-critical systems. You will design, build, and maintain internal tools and services, contributing to architectural decisions and modernization efforts on high-revenue platforms.

You'll mentor engineers, collaborate with stakeholders, and focus on reliability, performance, and observability while advancing legacy codebases toward scalable, future-ready systems.

Qualifications

• 5+ years of professional software engineering experience building and shipping production software.
• Experience with software architecture and making sound technical trade-offs.
• Comfort working in and improving legacy codebases.
• Strong programming fundamentals and the ability to learn new languages quickly.
• Experience with Scala and/or Python.
• Experience building services or APIs used by other engineers or internal teams.
• Strong communication skills for high-visibility projects.

Responsibilities

• Design, build, and maintain internal tools and services, primarily within legacy systems.
• Contribute to architectural decisions, including modernization of existing platforms.
• Deliver on high-revenue projects where reliability and performance matter.
• Collaborate with stakeholders across engineering and business to understand needs.
• Improve maintainability, testing, and observability of codebases.
• Write technical documentation and share knowledge with the team.
• Participate in code reviews, mentor engineers, and raise engineering quality.

Job description

TrueML in the United States is seeking a senior software engineer to own and evolve mature, business-critical systems. You will design, build, and maintain internal tools and services, contributing to architectural decisions and modernization efforts on high-revenue platforms.

You'll mentor engineers, collaborate with stakeholders, and focus on reliability, performance, and observability while advancing legacy codebases toward scalable, future-ready systems.