MAP Staffing Solutions Group

Senior Backend Engineer - Rails, AI (Remote)

MAP Staffing Solutions Group  •  Remote  •  1 month ago
Apply
AI can make mistakes so check important info. Chat history is never stored.

Job Description

Join as a Backend Engineer and help rebuild payments for the >$1tn distribution industry. You’ll architect and build the systems that process millions of dollars in transactions daily, integrate with complex ERP systems, and leverage cutting-edge LLM technology to transform how distributors manage their revenue cycles.

You’ll join a small team of A+ players where everyone acts as an individual contributor while actively supporting each other through pair programming and collaborative problem-solving. You’ll work closely with our founder-led team who previously operated a distribution business and understand the real-world problems we’re solving.

Who Thrives Here (read this first — it saves everyone time)

  • AI-Native: You already use Cursor, Claude, GitHub Copilot, or similar every single day. You treat AI as a pair programmer, not a toy or a threat.
  • Product-minded: You obsess over the “why” behind features, dig into customer data (or talk to customers), and measure success in revenue and user love — not story points.
  • Ownership > tasks: You hate being blocked. When something is unclear or broken, you prototype, reach out directly, pair, or just ship a pragmatic solution.
  • Builder mentality: Strong opinions, weakly held. You default to shipping the simplest thing that works (often with AI help), then iterate fast.

What You’ll Own

  • High-volume payment processing systems and secure financial APIs
  • Deep integrations with major ERPs (NetSuite, Sage, Acumatica, etc.)
  • LLM-powered workflows (credit decisions, remittance matching, automated comms)
  • Real-time data pipelines handling millions of financial records
  • AR / collections automation that directly impacts customer cash flow

Must-Have

  • 4+ years of backend experience with strong system design chops
  • Expert-level Ruby on Rails (Rails 7+, Ruby 3+) — our core backend is modern Rails and you’ll own huge parts of it from day one → Exceptional candidates with deep experience in Django, Laravel, Spring Boot, or similar who are excited to go all-in on Rails will be considered
  • Advanced PostgreSQL (query optimization, large datasets, logical replication, etc.)
  • Proven ability to design clean, versioned REST/JSON APIs
  • Experience shipping and operating ETL/background-job heavy systems in production

Bonus Points

  • Built or maintained third-party integrations with enterprise software
  • Real fintech, payments, or billing experience (Stripe, ACH, lockbox, etc.)
  • Hands-on LLM integration or prompt engineering (bonus if you’ve shipped it to production)
  • Previously worked at a Series A–C startup and loved the chaos

Tech Stack (today — evolves fast)

  • Backend: Rails 7+, PostgreSQL, Sidekiq, Redis
  • Infra: AWS, Docker, Terraform, CI/CD
  • AI: OpenAI / Anthropic APIs, vector DBs, Cursor/Claude daily
  • Security: Bank-grade encryption, SOC 2 in progress

Engineering Culture

True end-to-end ownership — no PMs writing pixel-perfect specs. We pair program (human + AI), ship daily, write tests that matter, and refactor mercilessly. AI tools are first-class citizens here: we expect you to 10× your output with them and help us push the boundaries of what’s possible in fintech automation.

Benefits

  • 🌴 Flexible paid time off so you can recharge.
  • 🏋️ Up to $100/mo wellness reimbursements.
  • 📈 A competitive stock option grant, so you have skin in the game.
  • ⚕️Medical, dental, and vision insurance, with 100% of premiums paid by us.
  • 📍Quarterly team gatherings for periodic in-person collaborative strategy and work sessions.
  • 👫 A passionate, supportive team dedicated to learning and growing together.
MAP Staffing Solutions Group

About MAP Staffing Solutions Group

MAP Staffing Solutions Group was established with the goal of building long-term relationships with clients and candidates and to build a network of technology professionals. The mission is to assist clients with developing and implementing successful recruiting strategies and to get the most value from the staffing process. The people are the most important asset to any company and hiring the right resources is a critical step in ensuring the future success of an organization. MAP Staffing Solutions bridges the gap between candidates and hiring managers and helps to ensure that the most talented professionals are introduced to our clients.

We provide traditional temporary help, professional-level staff, strategic partnerships and regular, full-time hires. Our recruiters have the skill and savvy to match up clients and candidates that are not only a technical but a cultural and organizational fit, as well.

We cover management positions such as CIO, CTO, COO, and all technical positions:

• Business Intelligence

• CRM

• Database Design and Administration

• Data Warehouse

• Desktop / Help Desk Support

• Disaster Recovery

• ERP

• Information Data Security

• LAN - WAN Networking

• Mainframe Programming

• Market Data Systems

• Project Management

• Software Design and Engineering

• Systems Analysis

• Systems Developers

• Technical Support

• Technical Writing

• Telecommunications

• Trading Systems

• Web Development

Industry
IT & Software
Company Size
1-10 employees
Headquarters
Unknown
Year Founded
2003
Social Media