Senior Software Engineer

orderco; United States; Hybrid; USD 175,000 - 195,000; Full time

Benefits offered by this job

Competitive salary

Equity

Hybrid work environment

401(k) match

Medical, dental, vision

Job summary

Order.co is seeking an experienced engineer to deliver complex features end-to-end, owning subsystems and raising the technical bar for the team. You will mentor junior engineers, review designs, and drive improvements in testing, observability, and code organization.

The role emphasizes security-aware decision making and strong collaboration with product discussions. You should have production-grade Ruby on Rails experience, solid PostgreSQL data modeling skills, and a track record of

Qualifications

• Proven experience building production-grade Ruby on Rails applications.
• Strong data modeling and query performance with PostgreSQL.
• Experience integrating with external systems via REST/GraphQL or webhooks.
• Experience with AWS, CI/CD, and deployment fundamentals.
• Ability to mentor junior engineers and lead code reviews.
• Ability to communicate with both technical and non-technical stakeholders.

Responsibilities

• Design and implement complex features end-to-end; own subsystems and navigate existing codebases with architectural discernment, using AI tooling as an accelerant while applying your own judgment on correctness, security, and alignment with the system's direction
• Participate in design reviews; propose sound technical designs and identify scalability, performance, and reliability risks before they become incidents
• Scope and estimate accurately; deliver features from requirements through rollout and post-release monitoring; communicate risks early
• Mentor junior and mid-level engineers through code reviews and pairing; provide substantive feedback that raises the quality of code around you
• Drive improvements in team practices — testing patterns, observability, code organization — and push back on shortcuts that create long-term cost
• Explain technical decisions clearly to both technical and non-technical stakeholders; represent engineering in product discussions with a security lens

Skills

Ownership mindset

Incremental delivery

Mentoring

Ruby on Rails

PostgreSQL

REST/GraphQL APIs

AWS

CI/CD

AI tooling awareness

Tools

REST/GraphQL APIs

Webhooks

External system integrations

Job description

Order.co is a guided B2B marketplace with a mission to simplify buying for businesses. Order.co makes it easy for businesses to place and track purchases across all their vendors, control spend, and make payments in a single, consolidated bill. Tailored insights and purchasing recommendations fuel smarter spending decisions so businesses can easily save time and money on what they need to grow.

Founded in 2016 and headquartered in New York City, Order.co oversees nearly half a billion in annualized spend across hundreds of customers like WeWork, SoulCycle, Lume, and High-Level Health. Order.co has raised $50M in funding from industry-leading investors like MIT, Stage 2 Capital, Rally Ventures, 645 Ventures, and more. Order.co has been proudly named a 50 to Watch by Spend Matters and a Best Place to Work by BuiltIn and Inc. Magazine.

The Role

Deliver complex features reliably while raising the technical bar of the team. At this level, your scope extends from individual features to subsystems — you own the outcome, not just the task.

Responsibilities

• Design and implement complex features end-to-end; own subsystems and navigate existing codebases with architectural discernment, using AI tooling as an accelerant while applying your own judgment on correctness, security, and alignment with the system's direction
• Participate in design reviews; propose sound technical designs and identify scalability, performance, and reliability risks before they become incidents
• Scope and estimate accurately; deliver features from requirements through rollout and post-release monitoring; communicate risks early
• Mentor junior and mid-level engineers through code reviews and pairing; provide substantive feedback that raises the quality of code around you
• Drive improvements in team practices — testing patterns, observability, code organization — and push back on shortcuts that create long-term cost
• Explain technical decisions clearly to both technical and non-technical stakeholders; represent engineering in product discussions with a security lens

What We're Looking For

• You own outcomes, not just tasks — accountability motivates you
• You build incrementally and surface risks early; you don't absorb uncertainty silently
• You help people around you grow through reviews, pairing, and direct feedback
• Production-grade Ruby on Rails; PostgreSQL with confidence in data modeling and query performance
• Experience building integrations with external systems — REST/GraphQL APIs, webhooks, or third-party vendor connections
• Familiarity with AWS, CI/CD pipelines, and deployment fundamentals
• Familiarity with AI coding assistants (e.g., Claude, GitHub Copilot); you understand where they help and where they fail — hands-on use is a plus, critical evaluation instinct is required

Failure Modes We Screen Against

Strong coder, weak owner — ships code but doesn't own outcomes. Solo expert — hoards knowledge instead of sharing. An overconfident designer — proposes solutions without considering trade-offs.

Interview Process

• 0 — Take-home Exercise
  • Format: 72h window, a few focused hours of work
  • What We Evaluate: Reviewed before your first live conversation
• 1 — Hiring Manager Screen
  • Format: 60 min, conversational
  • What We Evaluate: Career trajectory, mentorship philosophy, technical influence examples, communication style
• 2 — PR Discussion
  • Format: 60 min
  • What We Evaluate: A conversation about the code you submitted, with two senior engineers. No live coding.
• 3 — System Design
  • Format: 60 min, Miro board
  • What We Evaluate: Requirements gathering, schema/API design, trade-off articulation.
• 4 — Team Interview (conditional)
  • Format: 30 min
  • What We Evaluate: Collaboration, mentorship examples, end-to-end delivery narrative
• 5 — Culture Add
  • Format: 30 min, People Team
  • What We Evaluate: Organizational values alignment

AI coding assistants are allowed in Rounds 2 and 3. We observe how you use them, not whether you use them.

What You’ll Receive

• Competitive compensation including base salary, bonus, and equity
• Employer-sponsored 401(k) with match
• Comprehensive medical, dental, and vision coverage
• Flexible time off and hybrid work environment
• Opportunity to build and scale a critical function at a high-growth fintech company

The anticipated annual salary range for this role is $175,000–$195,000. Actual compensation and title will be commensurate with experience, qualifications, knowledge, and skills.