Junior Rails Developer Jobs in Seattle, WA (NOW HIRING)

There are many positions open within the Care Innovation team, so depending on your skills and team needs, we'll route you to the appropriate team! You will take on a high-visibility, high-impact role as a Senior Software Engineer. In this key technical position within a high impact team, you'll have the autonomy to drive technical decisions and influence the direction of product development. You'll collaborate closely with R&D leadership to design and execute high-priority projects that support our company's mission of transforming mental healthcare.

Please note that this is a hybrid role based in Seattle, with an expectation to be in the office 2–3 days per week at our 255 King St location. Candidates must be based in the Seattle metro area or able to relocate independently within 90 days of their start date. Occasional travel will be required for team on-sites.

What You'll Do

• Write, review, and optimize production-ready code daily while making key technical decisions and holding a high bar for code quality.
• Lead technical design reviews and produce technical designs as a primary author—delivering elegant solutions to complex problems.
• Use AI tools (e.g., Claude, Copilot, Cursor etc) to support technical design, explore tradeoffs, accelerate delivery, and augment code reviews—while critically evaluating all AI-generated output to ensure it meets team quality and security standards.
• Identify repeatable tasks that can be accelerated with AI; guide junior engineers on effective and responsible AI usage.
• Design and build scalable backend services in Ruby on Rails, owning provider-facing APIs across the profile, onboarding, and offboarding lifecycle.
• Lead multi-person, multi-sprint projects: coordinate execution, manage dependencies and tradeoffs, and build alignment across stakeholders.
• Mentor and actively develop engineers at earlier career stages through code reviews, pairing, and direct coaching.
• Own operational excellence: exemplify best practices in logging, alerting, and monitoring; methodically investigate incidents and provide root cause analyses, including participating in an on-call rotation.

What Success Looks Like In This Role

• Coding Excellence – Deliver clean, efficient, and scalable code that enhances system performance, maintainability, and reliability. Your code quality serves as a model for the team.
• Technical Leadership – Lead high-impact projects from ideation to delivery, driving technical direction while making significant hands-on coding contributions.
• AI-Augmented Engineering – Actively use AI to accelerate your work—from drafting designs and debugging to reviews and documentation—while guiding teammates to do the same responsibly and effectively.
• Scalable & Reliable Systems – Design, implement, and maintain architectures that support future growth while maintaining high system uptime and low defect rates.
• Project Execution – Consistently ship high-quality projects on time, within scope, and with high stakeholder satisfaction.
• Engineering Excellence – Elevate team standards through strong personal contributions, high-value code reviews, and proactive identification of tech debt and improvement opportunities.
• Mentorship & Growth – Act as a technical leader and mentor, fostering a culture of learning, growth, and accountability.

What You'll Bring

• 5+ years of professional software development experience with a focus on backend development.
• Strong proficiency in Ruby on Rails, Python, or equivalent object-oriented backend language.
• Experience leading technical designs and multi-person engineering projects end-to-end.
• Strong SQL skills and familiarity with relational databases like PostgreSQL.
• Actively uses AI coding tools (e.g., Claude, Copilot) and iterates on prompts to get high-quality outputs—while critically reviewing AI-generated code for correctness, security, and standards compliance.
• Embraces writing well-designed tests that accompany all code.
• Proven ability to mentor and develop engineers at earlier career stages.
• Comfortable working on an agile team; curious about learning new things, including evolving AI capabilities.
• Bonus: Experience integrating AI/ML features or LLM-powered services in production.
• Bonus: Background in healthcare or regulated environments.

The target base salary range for this position is $159,000 - $191,000 and is part of a competitive total rewards package including equity and benefits. Individual pay may vary from the target range and is determined by a number of factors including experience, location, internal pay equity, and other relevant business considerations. We review all employee pay and compensation programs annually using Radford Global Compensation Database at minimum to ensure competitive and fair pay.

Note: We have even more benefits than listed here and below, your recruiter will provide more in-depth information as you continue in the interview process. Benefits are subject to individual plan requirements and eligibility criteria.

• Health, Dental, Vision benefits start on your first day at Spring. You and your dependents also receive access to One Medical accounts HSA and FSA plans are also available, with Spring contributing up to $1K for HSAs, depending on your plan type.
• Employer sponsored 401(k) match of up to 2% for retirement planning
• A yearly allotment of no cost visits to the Spring Health network of therapists, coaches, and medication management providers for you and your dependents.
• We offer competitive paid time off policies including vacation, sick leave and company holidays.
• At 6 months tenure with Spring, we offer parental leave of 18 weeks for birthing parents and 16 weeks for non-birthing parents.
• Access to Noom, a weight management program—based in psychology, that's tailored to your unique needs and goals.
• Access to fertility care support through Carrot, in addition to $4,000 reimbursement for related fertility expenses.
• Access to Wellhub, which connects employees to the best options for fitness, mindfulness, nutrition, and sleep in one subscription
• Access to BrightHorizons, which provides sponsored child care, back-up care, and elder care
• Up to $1,000 Professional Development Reimbursement a year.
• $200 per year donation matching to support your favorite causes.