Senior Software Engineer

Role Description

We're moving from a build cycle that hides intent inside Jira tickets to one that puts a spec at the center of every change. AI generates working code from a clear enough spec; if the spec is fuzzy, the code is too. The bottleneck moves from typing to thinking.

We run a V-shaped SDLC. The left side is intent: research, vision, spec, tests. The right side is verification: unit, integration, system, UAT. AI is changing the left side fast. Your job is to own the spec-to-verified-software loop so intent actually lands in production.

Product owns the upper 40%. They bring the customer research, the 1-3 year vision for where TextUs is headed, and the strategic framing of the bet. Engineering owns the lower 60%: the spec that turns vision into code, the acceptance criteria that defines done, the UAT that proves it works, and the working software at the end of it.

What you'll own:

• A feature area end-to-end, from spec authoring through verified production rollout
• Translating product research and 1-3 year vision into specs the engineering org can build against
• Specs that explicitly address tenancy, auth, rate limits, cost, observability, failure modes, and rollback
• Acceptance criteria for every feature in your area, written before code is generated
• UAT scenarios and the test artifacts that verify the system does what the customer expects
• The codegen loop: scoping prompts, knowing when to stop and rewrite the spec rather than chase convergence, reviewing AI output against intent
• Production health for what ships: telemetry, alerts, on-call response, follow-through on whatever broke
• Pairing on spec authorship with less experienced engineers, raising the floor on what a "good spec" looks like across the team
• Overall mentorship of junior and mid-level engineers

Qualifications

• 5+ years building production software in a team that ships fast and owns its own quality
• Comfort with the customer side of the product, not just the engineering side
• Strong fluency with Claude Code or equivalent agentic dev tooling
• Strong written communication
• Track record of shipping in a Rails or comparable full-stack environment
• History of independent ownership: features you took from problem to production with light oversight
• Bonus: experience with TypeScript, React, React Native, Chrome extension surfaces, or embedded web app contexts

Requirements

• Our stack: Ruby on Rails, Postgres or similar relational database experience, ElasticSearch or similar search technology, ActiveJob with AWS SQS, Sidekiq or similar background job system, AWS

Benefits

• Competitive pay
• Health / Dental / Vision Insurance
• HSA contributions
• 401K with company match
• Unlimited PTO
• Cell phone + internet reimbursement for $100/month
• One-time $1,000 home office stipend once you’ve been with TextUs for 6 months
• Up to 12 weeks of Parental Leave
• 12 holidays + EOY Closure
• U.S. remote first with optional WeWork office space in downtown Denver, CO

Interview Process

• Initial Call w. HR (30 mins via Video)
• Interview w. Hiring Manager (45 mins via Zoom Video)
• Rembrandt Assessment
• Assignment (90 mins via Zoom Video)
• Interview w. Cross Functional Team (60 mins via Zoom Video)
• Q&A w. CEO (30 mins via Zoom Video)

Employment Details

• Job Type: Full time
• Compensation Range: $140-150K
• Location: Remote (US) / Headquartered in Denver, CO
• Target Start Date: 2-3 weeks from offer date
• # hires for this role: 1
• Reporting to: Engineering Manager