Senior Software Engineer, Lead (Java, .NET)

TL;DR

Senior Software Engineer, Lead (Java, .NET): Architecting and modernizing a platform by transitioning legacy .NET systems to a Java/Spring stack, with an accent on designing patterns for zero-downtime domain displacement and bridging tech stacks. Focus on understanding business impact of architectural choices, mastering observability for system health, and leveraging AI tools for development workflows.

Location: Remote-First within Europe. The team is distributed across multiple European countries.

Company

hirify.global is a pioneer in research technology (ResTech), offering a programmatic marketplace for collecting opinions and behaviors from nearly 300 million respondents in over 150 countries.

What you will do

• Collaborate on architectural modernization, designing patterns for legacy displacement from monoliths with zero downtime.
• Build new services and transition existing ones from .NET to Spring while contributing to other codebases.
• Partner with product managers to define requirements and shape a roadmap balancing technical debt and new value.
• Communicate effectively across timezones, using written documentation and async methods for a distributed team.
• Master observability using Grafana and modern tracing to ensure backend system performance and reliability.
• Drive AI efficiency by leveraging Agentic programming tools (like Claude Code) for refactoring and development.

Requirements

• Deep experience in backend systems and comfortable switching between programming languages.
• Comfortable with event-driven systems and a proven track record of breaking down monoliths and managing system migrations.
• Believes code without a robust test suite (Unit, Integration, E2E) isn't finished.
• Strong product mindset, seeking to understand the business impact of architectural choices.
• Builds systems that provide performance insights rather than waiting for crashes.

Nice to have

• Practical experience with .NET and Java are a plus.

Culture & Benefits

• Remote-First work setup with high autonomy for engineers.
• Global impact, powering a marketplace used by millions worldwide.
• Strong values in collaboration, innovation, accountability, and caring.
• Recognized in Newsweek’s 2025 Global Top 100 Most Loved Workplaces®.
• Commitment to a culture of trust, respect, and employee growth.