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5,485 Rails jobs

Open roles that use Ruby on Rails for web applications.

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5.5K jobs
Atlassian Backed by Accel
63 views 2 weeks ago

Senior Backend Software Engineer, DX

Open 15d RemoteNorth AmericaSenior H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Senior backend engineer on Atlassian's Developer Experience (DX) team, working end-to-end on features in a Ruby on Rails codebase with raw SQL — driving technical design, shipping scalable services, leading code reviews, and mentoring. Fully remote within USA time zones.

Agile Atlassian AWS Azure Cassandra +16 skills
149K – 235K $
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Yellow Card Financial
31 views 2 weeks ago

Growth Marketing Lead

Open 16d RemoteNorth AmericaLead
United States

Who We Are Yellow Card is a global payments infrastructure with deep emerging markets expertise. Businesses use us to access US dollars, manage treasury, and move money across borders. Our focus now is scaling our…

AI Automation Cloud CRM Demand Generation +8 skills
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Smartly.io Job Board
20 views 2 weeks ago

Software Engineer, Large-Scale Data Systems

Open 16d On-siteEurope
Finland
Helsinki

Engineer on Smartly's Aqueduct team building the data platform behind large-scale cross-platform advertising — designing data storage and pipelines that process billions of records daily, building APIs, and following SRE practices. Stack includes Ruby on Rails, TypeScript/React, plus Python/Scala/Java with tools like Spark, Flink, Kafka, and PostgreSQL/ClickHouse.

Agentic AI AI API Automation BigQuery +20 skills
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Wealthsimple Technologies
24 views 2 weeks ago

Principal/Staff Product Manager, Financial Risk

Open 16d RemoteNorth AmericaPrincipal Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
Canada

Own the vision and roadmap for Wealthsimple's Financial Risk platform: a real-time fraud decisioning rules engine, fraud investigation tooling/automations, and account restriction frameworks protecting money movement across payment rails. Needs 8+ years in product management with deep fraud/risk and platform PM experience plus strong technical fluency in streaming and ML integration.

Accessibility AI API Cryptocurrency Data Science +4 skills
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Kikoff Backed by Lightspeed
14 views 2 weeks ago

Senior Software Engineer - Product Platform

Open 16d On-siteNorth AmericaSenior
United States
San Francisco

Senior Software Engineer on Kikoff's Product Platform team builds and owns foundational services—identity/KYC infrastructure, credit furnishing systems, and shared platform capabilities—that every product team depends on. Ruby on Rails is a plus; strong production-systems fundamentals required.

AI Fintech Rails Ruby
244K – 292K $
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Mercury - Banking for Startups
15 views 2 weeks ago

Senior Engineering Manager - Credit Cards

Open 16d RemoteNorth AmericaSenior
United States
San Francisco

The idea of credit predates coinage itself. In ancient Babylon, loans of grain and silver were recorded on clay tablets, complete with interest rates, repayment terms, collateral, and the names of witnesses. These…

CAD Fintech Haskell Rails SaaS
239K – 299K $
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Ent Security
5 views 2 weeks ago

Director, Talent & Performance

Open 16d HybridNorth AmericaC-level
United States
San Francisco

About Ent Ent is the intent-aware workspace security platform for securing human and AI-driven work. Built to protect productivity, the new attack surface, Ent understands not just what users and agents do but why, and…

Agentic AI AI Assembly Performance Management Rails +1 skills
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Docyt
27 views 2 weeks ago

DevOps Engineer

Open 15d APAC 8 questions
India
Noida, Uttar Pradesh

Senior DevOps Engineer at Docyt (a Silicon Valley AI startup automating small-business back offices) based in Noida, India. Day to day: build and scale AWS cloud infrastructure, CI/CD pipelines, and reliability/monitoring using Docker, Kubernetes, Jenkins, Terraform/Ansible, and Prometheus/Grafana/ELK.

Agile AI Ansible Automation AWS +41 skills
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Archer Recruitment
12 views 2 weeks ago

C++ Senior Software Engineer

RemoteEuropeSenior
Ireland

C++ Senior Software Engineer High-Scale Greenfield Build Global Fintech Career Progression A scaling global fintech business is expanding its core engineering team with a Senior Software Engineer. The organization’s…

API Api Design C++ Fintech Rails +2 skills
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Wonderschool Backed by a16z
47 views 2 weeks ago

Full Stack Software Engineer, Applied AI

Open 139d North America 15 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Francisco

Wonderschool is hiring a full stack engineer in San Francisco to own its AI-driven development loop — reviewing AI-generated code, building automated agent pipelines, and shipping product features with React/TypeScript, Node.js or Elixir, and Postgres. In-person 5-6 days a week; $140k+ base plus equity.

Agentic AI AI API Api Design CI/CD +14 skills
from 140K $
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Lawrence Harvey
11 views 2 weeks ago

Backend Software Engineer (New York)

Open 16d North America
United States
New York

Lawrence Harvey has been engaged by a well-backed fintech startup building global payments infrastructure across traditional banking and digital asset rails on a position that is critical to the continued development…

API Cloud Distributed Systems Fintech Node.js +3 skills
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Revenue3
2 views 2 weeks ago

Senior Rust Backend Engineer -NYC hybrid (New York City Metropolitan Area)

Likely evergreen North AmericaFull-timeSenior
United States

About the Company We’re partnering with an enterprise fintech building infrastructure that unifies traditional and tokenized assets into a single operating layer. Its platform enables financial institutions, exchanges,…

Agentic AI AI API Automation Claude Code +16 skills
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Wealthsimple Technologies
22 views 2 weeks ago

Software Development Manager, Institutional Transfers

Open 16d RemoteNorth America Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
Canada

Engineering manager leading one of two teams (Transfers Platform or Transfers Experience) that move client investment accounts in and out of Wealthsimple. The person hires and coaches developers, sets technical direction, and ensures the reliability and scalability of the transfer platform built on distributed systems, SQL, event-driven architecture, and cloud.

Accessibility AI Automation AWS Cloud +21 skills
166K – 208K CAD
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VC Lab
79 views 2 weeks ago

QA Engineer

Open 16d Remote

QA Engineer at Decile Group (VC Lab) owning quality end to end for Decile Hub and Start Fund: building an agentic AI QA system that runs regression tests and flags risks automatically, plus classic test plans, bug triage, and release checks. Needs 5+ years QA on SaaS, hands-on AI-agent building, and living within a few time zones of Pacific time.

Agentic AI AI Automation Rails Ruby +2 skills
80K – 100K $
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beaconsoftware
40 views 2 weeks ago

Lead Software Engineer - Canada (Remote)

Open 16d RemoteNorth AmericaFull-timeLead 6 questions

Hands-on lead engineer embedded full-time in one of Beacon's acquired vertical SaaS companies: shipping code daily on that company's stack (.NET, Rails, Python, TypeScript, Oracle, PHP), modernizing CI/CD and testing, coaching the existing team, driving AI-assisted development, and setting the roadmap with the GM.

Agentic AI AI .NET Oracle PHP +6 skills
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Beacon Holdings
35 views 2 weeks ago

Lead Software Engineer - Canada (Remote)

RemoteNorth AmericaFull-timeLead 6 questions

About Beacon Software: Beacon is acquiring and operating a portfolio of vertical SaaS companies. Most private equity firms scale by adding people. We are building Beacon to scale by adding software. The thesis is…

Agentic AI AI .NET Oracle PHP +6 skills
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Karias Health
9 views 2 weeks ago

Senior Software Engineer (Python & Ruby on Rails)

Open 16d RemoteNorth AmericaFull-timeSenior
United States
United

Foundational senior engineer at a health benefits platform who architects a multi-tenant Rails/Python SaaS on AWS (RDS, S3, Redshift, Glue, OpenSearch), builds RAG pipelines on HIPAA-eligible LLMs, and mentors offshore engineers — roughly 80% hands-on building, 20% technical leadership, reporting to the Lead Engineer.

AI AWS CI/CD Fintech Hipaa +11 skills
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Instrumentl Backed by Y Combinator
21 views 2 weeks ago

Senior Backend Engineer

Open 16d RemoteNorth AmericaSenior
United States
Oakland

Senior Backend Engineer at Instrumentl, a grants platform for 6,000+ nonprofits. You'll own AI features end to end — building tool-using LLM agents, RAG pipelines, and APIs for grant discovery and application drafting — in Python (FastAPI/Celery), with strong evals, observability, and reliability practices on a small YC-backed team.

AI API AWS CI/CD Data Pipelines +17 skills
175K – 220K $
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Placements24
39 views 2 weeks ago

Web Developer (Full Stack)

Open 16d RemoteAfrica
South Africa
Vereeniging

Full stack web developer designing, building, and maintaining both the front end (modern JS frameworks like React/Vue/Angular) and back end (Node.js, Python, etc.) of web applications on a remote-first engineering team, collaborating with product managers, designers, and engineers to ship scalable features.

Angular API CI/CD CSS Django +14 skills
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