Backend Senior Software Engineer

Role Description

This is a high-impact role for a senior engineer who wants real ownership from day one. As a Senior Software Engineer (Contractor) at Thrive Global, you will own and evolve our enterprise platform end-to-end — responsible for both sustaining engineering (reliability, scalability, technical debt) and net-new feature development that directly supports our B2B customers and commercial growth.

You will start by working on our Coaching application, with the flexibility to move to other parts of the platform as priorities evolve. This is a fast-moving, lean environment, so we are looking for someone who brings the pragmatism of a startup — a bias to ship and iterate quickly — paired with the craft of an engineer who has seen the long-term cost of shortcuts. You will take ambiguous problems, break them into well-sized workstreams, and drive them to completion with minimal hand-holding.

How You’ll Contribute

• Own and evolve the enterprise platform end-to-end.
• Independently scope and deliver medium-to-large projects.
• Partner closely with Product and stakeholders.
• Set a high bar for quality without sacrificing pace.
• Support reliability and incident response.

Qualifications

• Senior-level software engineering experience, with a track record of owning systems or products end-to-end in a production environment.
• Demonstrated ability to scope and deliver medium-to-large projects independently, from ambiguous problem to shipped solution.
• Strong full-stack in TypeScript, with experience balancing sustaining engineering (reliability, scalability, technical debt) and net-new feature development.
• Experience building and supporting B2B / enterprise-facing software.
• Comfort partnering directly with Product and non-technical stakeholders to translate requirements into technical plans.
• Experience with on-call rotations and incident response.
• Pragmatic, startup-minded approach — able to move fast and iterate while maintaining a high quality bar.
• Requires meaningful daily overlap with the U.S. Eastern Time business hours, as well as sufficient overlap with the Ireland-based team to support collaboration and communication.
• Available to start immediately and engage as a contractor.

Benefits

• Mission-Driven Impact: Be part of a company that’s truly making a difference in people’s lives around the world.
• Career Growth: Develop within the company and help shape our growth strategy.
• Human-Centric Culture: Thrive in a supportive environment with a range of wellness perks and benefits.
• Competitive Compensation: Enjoy a comprehensive and rewarding total compensation package.
• Health & Financial Benefits: Medical, dental, and vision coverage plus a 401(k) program with company match.
• Time to Recharge: Generous paid time-off programs designed to help you rest, reset, and recharge — including Thrive Time, a benefit unique to Thrive that gives employees additional paid time off after major projects or intense periods of work to truly recharge and recover.

Compensation

Compensation for this contract position is expected to fall within the range of $90–$125 per hour, depending on experience, expertise, and overall qualifications. Please note that, as this is a contractor role, compensation will be provided on an hourly basis and the selected candidate will not be eligible for employee benefits, bonus programs, equity, or other company-sponsored benefit plans. The final hourly rate will be determined based on the candidate's background, experience, and market considerations.