Sr. Software Engineer

Tonic AI

20h

About The Position

Tonic.ai is a fast-growing Series B company operating at the intersection of data privacy and AI, making it an essential component of the modern AI stack. Our platform combines advanced data synthesis, de-identification, and privacy-preserving techniques to enable the safe use of enterprise data for software development, testing, and model training — accelerating innovation while protecting what matters most.
As AI adoption accelerates, access to high-quality, secure data is becoming one of the defining challenges for modern engineering teams. Tonic sits directly in that critical path.
Tonic.ai is seeking a Sr. Software Engineer to join our Structural Data team — a tenured, deeply technical group responsible for building and supporting the database foundations of our platform.
This is a position for an engineer who enjoys solving complex infrastructure problems and operating as a technical decision-maker within a mature engineering culture. You will help raise the technical bar of the team while working on systems that require strong fundamentals, sound engineering judgment, and the persistence to untangle complex systems.

Requirements

• Senior-level engineering capability, with the judgment to operate autonomously
• Deep experience in one or more of the following areas: .NET / C# Database internals or distributed data systems Enterprise infrastructure software
• Alternatively, strong Java engineers willing to learn .NET are encouraged to apply
• Demonstrated ability to troubleshoot complex technical systems
• Experience in smaller or growth-stage companies where adaptability is essential
• Familiarity with AI coding tools and openness to modern development practices

Responsibilities

• Design, build, and evolve database-centric components within Tonic’s structural data platform
• Make pragmatic architectural decisions that balance durability, performance, and maintainability
• Develop and maintain database connectors for the Structural platform
• Improve performance and maintainability of the product
• Troubleshoot complex production issues across multiple database technologies
• Investigate edge cases and system behaviors that require both patience and precision
• Author thoughtful technical designs and documentation
• Help the team reason through tradeoffs and long-term implications
• Partner with Product to translate requirements into scalable solutions
• Work closely with Support and Solutions Architects to deeply understand issues before implementing fixes
• Raise the bar through code quality, technical judgment, and strong engineering habits
• Bring informed perspectives on modern tooling, including AI-assisted development

Benefits

• Work on Problems That Matter: Secure data is becoming foundational to the future of AI. The systems you help build will directly enable that future.
• Stability Meets Momentum: A strong leadership team, meaningful traction, and high engineering retention create an environment where engineers can do sustained, impactful work.
• Autonomy & Trust: We hire experienced engineers and give them the space to operate.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed