I will fix and scale ruby or nodejs backend apps

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dkdottk
D
dkdottk
Danylo K
fix and scale ruby or nodejs backend apps
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fix and scale ruby or nodejs backend apps

About this gig

I build full-stack web apps with Ruby, Node.js, and modern JavaScript.


With 6+ years of experience, I help startups and product teams ship reliable features end to end from database and APIs to the UI your users actually click.


What I can do for you:

Full-stack features in Ruby on Rails + frontend

Node.js / TypeScript APIs with a clean web UI

Vue.js / JavaScript frontend work tied to real backend logic

Auth, dashboards, admin panels, CRUD workflows

PostgreSQL / MongoDB, Docker, AWS integrations

Payments (Stripe) and third-party APIs

Bug fixes, refactors, and tests (RSpec / Jest)

Production-ready source code with comments


How we work:

1. You share the goal, stack, and current codebase (if any)

2. I confirm scope for the package (~10-12 hours)

3. I deliver working full-stack changes + source

4. Up to 2 revisions included


Best fit: new features, MVPs pieces, integrations, admin tools, and fixes across frontend + backend.


Message me before ordering if the task is larger we can plan milestones or a custom offer.

  • Programming language

    • Ruby/RoR

Get to know Danylo K

Danylo K

Ruby and Node Software Engineer

  • FromUkraine
  • Member sinceAug 2026

  • Languages

    English, Ukrainian
I am a Ruby and Node.js Engineer with over 6 years of experience designing and scaling high-load, distributed systems. I specialize in architecting microservice ecosystems, building secure financial workflows, and leveraging AWS pipelines to solve complex technical problems. My approach focuses on robustness, maintainability, and aligning technical decisions with business goals.

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