Senior Rails Full-Stack Developer
Role Overview
As a Senior Rails Full-Stack Developer, you will design, build, and scale systems for a high-performance SaaS platform using Ruby on Rails. You will extend a custom design system with Hotwire and Tailwind, collaborate with the engineering team to shape technical direction, and ensure performance and reliability across the application. This role involves working on backend services, frontend features, and addressing performance bottlenecks in a remote, product-focused environment.
Perks & Benefits
This is a fully remote position with a culture built on trust, autonomy, and asynchronous collaboration, offering competitive pay and long-term growth opportunities. You'll work on technically challenging problems at scale, with a focus on stability and deep product knowledge, and the company values diversity and inclusion. The role is for independent contractors with flexible hours, typically around 40 per week, and hiring is limited to specific countries in Europe and South America.
Full Job Description
About Hubstaff
Hubstaff helps remote teams work smarter with industry-leading workforce analytics, time tracking, scheduling, and payroll automation software used by 140,000+ users globally.
We’ve been fully remote for over a decade and believe remote work is one of the biggest shifts in modern work. We’re profitable, product-led, and building for the long term.
The Role
We’re hiring a Senior Rails Full-Stack Developer to join our Growth team — a fast-moving engineering group focused on experimentation, user experience, and business impact.
This isn’t a traditional feature factory role. Growth engineers at Hubstaff are deeply involved in ideation, experimentation, analytics, and outcomes — not just implementation.
We’re looking for engineers who are driven by outcomes over output and who thrive in environments where speed, learning, and ownership matter. Success in this role means thinking beyond tickets and contributing to the full lifecycle of experiments: ideation, implementation, measurement, iteration, and learnings.
You’ll work closely with Product, Design, Data, and Marketing to launch experiments quickly, learn fast, and improve conversion, activation, retention, and customer experience across the platform.
What You’ll Do
Build and scale features using Ruby on Rails, Hotwire, Tailwind, and modern frontend tooling
Launch rapid growth experiments with ultra-fast turnaround times
Own projects and experiments from idea to outcome — not just delivery
Scope-cut strategically to maximize learning velocity and business impact
Work with tools like Statsig, Segment, Metabase, and Customer.io
Analyze metrics, events, experiment results, and user behavior to guide decisions
Balance technical quality with experimentation speed
Improve performance, reliability, and UX across the platform
Collaborate asynchronously with a high-performing remote team
What We’re Looking For
5+ years building production web applications
Strong Ruby on Rails experience
Strong frontend experience with Hotwire/Turbo/Stimulus + Tailwind
Experience with React, Vue, or similar modern JS frameworks
Product-minded engineer with strong ownership mentality
Comfortable operating in fast-moving, experimentation-heavy environments
Strong understanding of metrics, event tracking, experimentation, and data-informed decision-making
Ability to think through tradeoffs, risks, and business impact — not just technical implementation
Bias toward action with a “ship, learn, iterate” mindset
Experience working remotely and asynchronously
Stable work history with multi-year tenure preferred
Nice to Have
Experience with Statsig, Segment, Metabase, or Customer.io
Experience scaling SaaS platforms
Background in growth/product experimentation
Familiarity with Docker, Kubernetes, AWS/GCP
Location
Hiring in: Argentina, Brazil, Poland, Romania, Spain, Portugal
Compensation
$45–60 USD/hour
~40 hours/week
Long-term contractor role
Why You'll Love Working With Us
A fully remote company with a strong async-first culture
High ownership, low bureaucracy environment where engineers have real product impact
Fast-moving Growth team focused on experimentation, learning, and outcomes
Opportunity to work closely with Product, Data, Design, and Marketing on initiatives that directly influence business growth
Autonomy to move quickly, test ideas, and shape solutions beyond implementation
Long-term product and engineering focus with meaningful technical challenges
Competitive compensation for top talent
Hubstaff is proud to be an equal opportunity employer committed to building an inclusive and diverse team.
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