Contact us
Contact us Open menu
50+ engineers · in-house 11 years on the market · since 2015

Build your Web & API solutions with our Ruby On Rails experts

We close your Rails roles in ~2 weeks, not 2 months. Senior Rubyists, ready to onboard, with PM, QA & design in-house when you need them.

Book 15-mins INTRO Call See case studies
Ruby on Rails RoR Ruby PostgreSQL MySQL Redis SQLite Sidekiq Solid Queue Solid Cache ActiveJob Hotwire Turbo Stimulus ViewComponent RSpec Capybara RuboCop Brakeman ActionCable AnyCable Puma Kamal ActiveRecord Rails API Rails Engines Ruby on Rails RoR Ruby PostgreSQL MySQL Redis SQLite Sidekiq Solid Queue Solid Cache ActiveJob Hotwire Turbo Stimulus ViewComponent RSpec Capybara RuboCop Brakeman ActionCable AnyCable Puma Kamal ActiveRecord Rails API Rails Engines
Why we chose Rails

At CleverLabs,
We Love Ruby on Rails

CleverLabs is a Ruby On Rails development agency that provides full-cycle Ruby on Rails software development services since 2015. We truly believe that Ruby on Rails is one of the most powerful and elegant frameworks for building modern Web Apps. Our Team is one of the largest in-house Ruby on Rails teams in Eastern Europe, with 40 senior RoR developers averaging 9 years of experience.
Related articles Why Ruby on Rails is a Good Choice For Your Startup? A Week with Sandi Metz’s Practical Course
config/routes.rb
# 2 weeks to production
# recruiter_estimate = 8.weeks # lol
# caffeine_level: :espresso
Rails.application.routes.draw do
  resources :projects, only: [:index, :show]
  # no :destroy — we're builders, not arsonists
  namespace :api, defaults: { format: :json } do
    resources :teams, only: [:index, :show]
    post 'hire', to: 'matches#create' # avg 9 days
  end
  get 'still_hiring', to: redirect('/') # you found us
end
↳ shipped Tuesday 14:22 by maria
↳ reviewed in standup — "LGTM, ship it"
Average match
9days
from intake call to first commit
In-house RoR team · 9 yrs avg. experience
40+ senior Rubyists
Clutch rating
CleverLabs rated 5.0 on Clutch for Ruby On Rails Projects
Rated on Clutch for Ruby on Rails projects
/ 01 The hiring tax you don’t need to pay

Hiring senior Rubyists is brutal.
We already did it for you.

Without CleverLabs
With CleverLabs
“Posting on 6 boards. 200 résumés. 4 worth calling.”
Pre-vetted Rails seniors, one shortlist, ready Monday.
“Recruiter says “next week.” It’s been five weeks.”
Signed contract Tuesday — first PR Friday.
“Junior pretending to be senior on a take-home.”
Engineers we’ve worked with for 3–7 years. Tested on real stacks.
““We need a PM and QA too.” Now you’re hiring three roles.”
Pods include PM, QA and designer if you want one.
/ 02 The 14-day promise

From “we need a Rubyist”
to first commit. In 14 days.

Most agencies promise a CV in 3 weeks. We promise a working pull request. Here’s the actual day-by-day from our last 4 engagements.

Day 0–1
Intake call
15 min with our lead engineer. Stack, scope, seniority, must-haves, deal-breakers.
Day 2–4
Shortlist
Two matched engineers. CVs, code samples, two-line ‘why this person’ summary.
Day 5–8
Tech interview
You run it your way. We handle scheduling and prep.
Day 9–11
Paperwork
MSA + SOW, NDA, your DPA. We move fast on contracts. Most Clients sign same week.
Day 12–14
First PR
Engineer starts. Onboarded by our tech lead in parallel. Working code by Friday.
Start the clock
/ 03 Two ways to work with us

Pick the model that fits.

Most popular Outstaff

Team Extension

  • Engineers join your Slack, Jira, GitHub — your processes, your standups.
  • You manage day-to-day. We handle HR, retention, replacement, payroll.
  • Scale up or down with 30 days’ notice. No bench fees.
  • Same engineer stays on your project. Average tenure: 2.4 years.
Best for: scale-ups with their own CTO, ongoing roadmap, internal tech lead.
10+
projects currently outstaffed
Engagement details
Min. commitment 1 month
Notice period 30 days
Time zones EU / US overlap
Working language English
Contract MSA + SOW, your DPA
Talk to an engineer
Turnkey Outsource

Dedicated Pod

  • PM + tech lead + 2–4 engineers + QA + designer. End-to-end delivery.
  • We own outcomes: roadmap, estimates, risk, releases.
  • Fixed-scope or T&M. Weekly demos. Code is yours from day one.
  • Includes our internal QA, DevOps and security review processes.
Best for: founders / non-technical owners, MVPs, distinct product modules.
100+
products and modules shipped end-to-end since 2015
Engagement details
Min. commitment 2 months
Time models Fixed-scope / T&M
Time zones EU / US overlap
Working language English
Contract MSA + SOW, your DPA
Talk to an engineer
/ 04 Stack & expertise

Key Technologies
We daily use

We’re a Ruby shop by conviction. Real products need a real stack. Here’s the toolkit our engineers reach for every day, from backend and data to DevOps, architecture and AI.

Technologies

Backend
RubyRuby On RailsAnyCableSidekiqActiveJobsGoliathFalcon
Frontend
ReactVue.jsHotWire/Turbo StackTailwindCSS
Databases
MySQLPostgreSQLRedisMongoDBRedshiftClickHouse
Logs
ELK Stack
Automated Testing
RSpecChaiJestCypressCapybaraSelenium
Queues
RabbitApache Kafka
AI Integrations
Open AIAnthropic

DevOps

CI/CD
GitLab CIGitHub Actions
Deployment
DockerDocker ComposeKamal
AWS Services
Load BalancerEC2ECSEKSS3RDSCloudWatchRoute 53

Approaches

Server Architecture
MonoliteMicroservices
Code Organization Approach
Rails EnginesDDDBDD
Linters
RubocopRuumbaReekBreakmanRubyCriticFlay
/ 05 How we work

Agile Approach

We propose using Scrum as our Agile framework, as it fosters collaboration and ensures that customers receive frequent feedback from users while seeing their product evolve over time.

see in details
Messaging Tools
SlackMicrosoft Teams
Task Tracking Tools
ConfluenceJiraGitLab BoardsGitHub Projects
  • 2-week Sprints
  • Sprint Planning, Retrospective & Grooming calls
  • Daily Reports — Progress, Plan, Problems
  • Monthly Reports
For founders

Building a startup? Rails is still the fastest path to launch.

You heard Rails is fast. It is, when you know it. Our engineers ship auth, admin, billing, dashboards, and API in one month. You spend the rest of the runway finding product market fit, not wrestling boilerplate.

Get an MVP team Look at startup cases
Week 1
Auth, admin, base models, CI, deploy. App is online.
Week 2–3
Core domain: your actual product surface.
Week 4
Payments, emails, analytics. First users invited.
Week 5+
Iterate weekly. Real users, real metrics.
/ 07 The team you’re hiring

Our leadership
RoR development team

CleverLabs is not a marketplace. Every engineer is a full-time employee. Many of them with us since 2015. Our average Client stays with us 6+ years, and one Client just hit year nine with the same embedded pod.

50+
in-house engineers
11
years in business
6y+
average Client tenure
4+
average years developers stay with us
Ignat Zakrevsky
Ignat Zakrevsky
CTO
15+ yrs experience
Arseni Yemchyk
Arseni Yemchyk
COO & Tech Project Manager
13+ yrs experience
Andrei Tsepliakou
Andrei Tsepliakou
Lead RoR Developer
14+ yrs experience
Pavel Kremen
Pavel Kremen
Lead RoR Developer
16+ yrs experience
Vladimir Khalzov
Vladimir Khalzov
Lead RoR Developer
18+ yrs experience
Yury Zubau
Yury Zubau
Lead RoR Developer
19+ yrs experience
Mila Kazakova
Mila Kazakova
UI/UX & Product Designer
7+ yrs experience
Anton Polyansky
Anton Polyansky
Lead QA Engineer
8+ yrs experience
Denis Korablev
Denis Korablev
Lead RoR Developer
14+ yrs experience
Oleg Zubarev
Oleg Zubarev
Lead RoR Developer
11+ yrs experience
Evgeny Yushkevich
Evgeny Yushkevich
Lead RoR Developer
10+ yrs experience
Ivan Ralinsky
Ivan Ralinsky
Lead RoR Developer
11+ yrs experience
Maxim Mikhailau
Maxim Mikhailau
Lead RoR Developer
9+ yrs experience
Nikolay Saldunov
Nikolay Saldunov
Lead RoR Developer
9+ yrs experience
Vladimir Panarkin
Vladimir Panarkin
Lead RoR Developer
10+ yrs experience
and many more — backend, frontend, mobile, QA, DevOps, design, PM
Meet your match
/ 08 What else CleverLabs does

Not just Rubyists.

Rails is the engine, but real products need design, product, QA, ops, mobile, AI, all in-house at CleverLabs. Sixteen practices, one master agreement, one delivery culture.

Full-cycle Rails builds for web apps, APIs and platforms — from green-field MVP to multi-tenant SaaS in production.
Senior Rubyists embedded in your team in ~2 weeks. You manage day-to-day; we own retention, HR, replacements.
2-week deep-dive on legacy Rails apps. You get a report, risk register and a quarter-by-quarter refactor plan.
PM + tech lead + 2–4 engineers + QA + designer. We own the outcome end-to-end — weekly demos, code is yours.
Discovery → IA → high-fidelity → design system. Our designers ship inside your repo, not in Figma silos.
Heuristic review of your existing product. Tracked findings, prioritized fixes, optional implementation by the same team.
Embedded PMs who run discovery, scope, sprint hygiene, and the awkward conversations that ship products.
Manual + Capybara, Playwright, RSpec. Regression suites that catch things. CI under 8 minutes.
AWS, GCP, Kamal, Kubernetes, Docker. On-call rotations, runbooks, SOC 2 prep, cost optimization.
Production React + TypeScript front-ends. Often paired with a Rails API; we can do both or just the front.
iOS & Android in React Native, sharing types and API contracts with your web app. Native modules when you need them.
Custom CRM platforms when Salesforce/HubSpot are too rigid — deal pipelines, comms, integrations, reporting.
LLM features grafted onto existing products: assistants, summarization, semantic search, agents, eval pipelines.
Verticals we've shipped repeatedly: logistics & fulfillment, fleet and warehouse ops, payroll and benefits, payments, KYC, compliance.
Several of our longest Client relationships started with a vendor transition. We audit the existing codebase and docs, align on your goals, set up new workflows, and run a secure handover without dropping delivery.
Inherited a Rails 4 nightmare? We've done 6 of those. Stabilize, untangle, then carefully modernize.
/ 09 Testimonials

Still with us years later

Decisely since 2016, eHub since 2017, verified on Clutch by the CTOs and founders who work with our engineers every day.

In early 2016 Decisely made the strategic decision to contract with CleverLabs. We feel we made the right decision. They work very hard to meet our deliverables. Decisely considers CleverLabs an invaluable partner for years to come.
Richard Mann, Chief Product Officer
HR & BenefitsSalt Lake City, US2016 — ongoing
Full review on Clutch
eHub has been CleverLabs customer since 2017. We still are very delighted with software development services they provide us with. We would not hesitate to recommend CleverLabs to any company looking for top-notch development services.
Ryan Warnick, Chief Technical Officer
eCommerce · ShippingUtah, US2017 — ongoing
Full review on Clutch
CleverLabs has successfully delivered high-load and stable REST APIs, connected the API hub to the client's mobile app, integrated several external IoT suppliers, and reached the request load speed of up to 110 ms. Moreover, the team's consistent planning has enabled them to complete tasks on time
Severin Waldis, Chief Executive Officer
IoT · SaaSSwitzerland2024 — ongoing
Full review on Clutch
Their project management is excellent. Brilliant, timely, clear communication always. The platform is supported and maintained to a high standard — custom development milestones met. Their customer relationship and communication skills are excellent.
Cat Wildman, CEO & Founder
EDI / DiversityUnited Kingdom2024 — ongoing
Full review on Clutch
CleverLabs delivered quality work on time, meeting our expectations. The team was experienced and knowledgeable, providing valuable recommendations. They communicated well through virtual meetings and messages — overall a successful engagement.
Rami Sweis, Chief Executive Officer
Shipping marketplaceDubai, UAE2025
Full review on Clutch

Latest articles

View all articles
A Week with Sandi Metz’s Practical Course
A Week with Sandi Metz’s Practical Course
#RubyOnRails
Why Ruby on Rails is a Good Choice For Your Startup?
Why Ruby on Rails is a Good Choice For Your Startup?
#RubyOnRails

Events

View all events
image description
Training
1-Week Sandi Metz Training
22-26 July 2024
Online
image description
Conference
InfoShare 2023
24-25 May 2023
Gdansk, Poland
image description
Conference
Blockchain Expo Global 2022
1- 2 December 2022
Online
/ 10 Questions every CTO asks

Read this before the intake call.

Nine out of ten intake calls start with these. We answered them up front so we can spend the call talking about your problem.

We employ them. As a Ruby on Rails agency with 11+ years in the market, we've built a huge pool of senior candidates. 50+ engineers are on the CleverLabs payroll year-round across our Warsaw HQ and Tallinn / Almaty R&D offices. When you need someone, it's an internal matching problem, not a cold start.
Free replacement in 5 business days, no questions. We re-shortlist from the same pool of seniors.
Yes. We're a 50+ person team, not a law firm, but we work with your paperwork regularly. CleverLabs has legal entities in Poland, the USA, and Kazakhstan, and we usually turn standard MSAs, NDAs, and DPAs around within a few business days.
Our team is mostly based in Poland (Warsaw, CET/CEST). EU overlap is straightforward. With the US East Coast you can usually count on 4–6 shared hours; US West Coast is tighter, mostly a morning window on their side. We'll be upfront about what works on the intake call.
Yes. Our agreements include a dedicated clause for that. Permanent hire is possible, ideally after one year of working together. The terms are spelled out in the contract from the start.
We typically work on a monthly retainer for both outstaff and dedicated pods. The rate depends on seniority and team composition. We quote in € or $, and keep the SOW short and practical.
/ 11 Why Choose CleverLabs as Your Ruby on Rails Partner?

When you hire Ruby on Rails developers from CleverLabs, you gain more than individual expertise. Our 40+ in-house senior engineers work daily on complex projects and actively share knowledge across the team. With an average of 9 years of experience, our developers bring stability, deep domain expertise, and consistent delivery. With CleverLabs, you don't just hire developers, you tap into the collective expertise of an entire RoR agency.

Tell us what you’re building.
We’ll tell you who can ship it.

Quickest path: 15 minutes with our Partnership Director and RoR Tech Lead. We discuss your goals, identify the best match from our in-house team, and show you real CVs.

Ruslan
Ruslan Yemchyk
CEO
Dmitry Klimovets, Partnerships Director
Dmitry Klimovets
Partnerships Director
Please check the Privacy Policy and Cookie Policy