Rails engineers who ship fast, from MVP APIs to production SaaS platforms, with the convention-over-configuration discipline that makes Rails codebases maintainable for years.
Senior Rails developers with SaaS, fintech, and marketplace platform experience
Flexible models, part-time, full-time, or dedicated team
Start in days. Fixed cost or retainer.
Recognition
Rails codebase growing slower and harder to change as the product matures?
Need Rails engineers who understand the framework deeply, not just the scaffold commands?
In short
RaftLabs provides senior Ruby on Rails engineers for API development, SaaS platform builds, marketplace backends, and Rails version upgrades. Developers follow Rails conventions rigorously, producing codebases that stay maintainable as products grow. Engagements start in days on fixed-cost or monthly retainer terms.
We work with startups and product teams that have chosen Rails, or are considering it, for speed and pragmatism.
Rails is the fastest way to go from idea to working product. We build Rails MVPs that are production-ready from day one, authentication, API, admin, background jobs, and deployment, so you can ship and learn without accumulating technical debt.
Rails powers some of the most successful SaaS products in the world. We build multi-tenant Rails applications with subscription billing, user management, feature flags, and the operational tooling SaaS products need.
Older Rails codebases accumulate tech debt and fall behind on Rails versions. We audit, refactor, and modernise Rails applications, upgrading from Rails 4/5/6 to Rails 7, improving test coverage, and cleaning up the codebase without disrupting production.
We provide Rails backend resource for client projects, embedded in your process, following your standards, available at the capacity your pipeline needs.
JSON APIs built with Rails API mode or full-stack Rails with Hotwire, designed for your frontend or mobile client. Serialisation, authentication (Devise/JWT), rate limiting, and documentation built in from the start.
Multi-tenant Rails applications with Stripe or Paddle billing, user and account management, email workflows, and admin tooling. We build SaaS products that can go from launch to scale without architectural rewrites.
Two-sided marketplace backends, seller and buyer management, listing workflows, payment routing, commission handling, and dispute management. Rails conventions keep marketplace complexity manageable at scale.
Sidekiq-backed background job queues for email sending, report generation, external API calls, and scheduled tasks. Reliable job processing with retry logic, dead-letter queues, and monitoring.
N+1 query elimination, database index optimisation, caching strategy implementation (Redis, Memcached), and query plan analysis. We profile Rails applications to find the actual bottlenecks and fix them.
Systematic Rails and Ruby version upgrades for applications running on outdated versions. We handle dependency compatibility, deprecation fixes, and test suite updates, keeping production stable throughout the upgrade process.
Senior Ruby on Rails engineers, flexible engagement, full source code ownership.
Our Rails engineers understand ActiveRecord, the asset pipeline, convention-based routing, and Rails security defaults, not just how to add gems and run scaffold commands.
Part-time for API work or specific features, full-time for a full product build, or a dedicated team for a complex Rails platform. Engagement model matches your project phase.
Senior Rails talent without senior developer hiring costs. No recruitment timeline, no benefits overhead, no notice period when requirements change.
Daily standups, sprint reviews, and weekly summaries. You see progress in deployed features, not status slides.
RSpec tests for models, request specs for APIs, and system tests for critical user flows. Test coverage is part of what we deliver, not something added after the sprint is done.
Rails has strong security defaults, we use them and supplement with additional protections. SQL injection prevention, CSRF protection, strong parameter enforcement, and Brakeman security scanning in the CI pipeline.
| RaftLabs | In-House | Freelance | |
|---|---|---|---|
| Time to hire top Ruby on Rails developers | 1 day to 2 weeks | 4 to 6 weeks | 1 to 12 weeks |
| Project initiation time | 1 day to 2 weeks | 2 to 10 weeks | 1 to 10 weeks |
| Risk of project failure | Exceptionally low with a 98% success rate | Low | Very High |
| Developers supported by project management | Yes, dedicated PM and Agile processes | Varies | No |
| Exclusive development team | Yes, dedicated team guaranteed | Yes | No |
| Assurance of work quality | Yes, with quality assurance processes | Yes | Varies |
| Advanced development tools and workspace | Yes, enterprise-grade tools | Yes | Varies |
Tell us what you're building or what your existing Rails application needs. We'll match you with the right engineers.
A 30-minute call to understand your Rails application, current challenges, and what needs to be built or fixed.
A clear proposal with team composition, timeline, and fixed cost or monthly rate.
Engineers onboard in days. First sprint planned. Code running in your environment within the first week.
Pricing
Dedicated senior engineers from $6,000/month (minimum pod $12,000/month).
Senior Ruby on Rails engineers available in days. Fixed cost or monthly retainer. Full source code ownership.
Yes. Rails 7 with Hotwire has given the framework a significant productivity boost for full-stack development. It remains the fastest framework for building CRUD-heavy web applications and APIs, shipping an MVP in Rails still takes significantly less time than equivalent work in Node.js or Go. The talent pool is smaller than it was five years ago, which makes hiring harder but doesn't make the technology less effective. We help you make the right stack choice based on your product requirements.
Yes. Rails as an API backend with a React or React Native frontend is a common architecture we build. We use Rails API mode for pure JSON APIs, or Rails with Hotwire for server-rendered UI with reactive components. The choice depends on your product requirements, we advise on the right approach for your specific use case.
Yes. Rails version upgrades are a common engagement, Rails 4 to 7 covers significant framework changes. We start with a dependency audit and test suite coverage check, plan the upgrade path, and execute in stages that keep production stable. Most upgrades also include Ruby version bumps and dependency modernisation.
We start with profiling, rack-mini-profiler, Skylight, or Scout APM to identify the actual bottlenecks. Most Rails performance problems come from N+1 queries, missing database indexes, or inefficient ActiveRecord usage rather than Rails itself. We fix the root causes, implement caching where appropriate (Rails.cache, Redis, HTTP caching), and add database indexes based on actual query patterns.