Senior Backend Engineer (Integrations)

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Siteline is Hiring

Job Info:

• Company Siteline
• Position Senior Software Engineer (Backend/Integrations)
• Location San Francisco, CA
• Source Greenhouse
• Published March 09, 2026
• Category Development
• Type Full-Time
• Experience Senior

ABOUT SITELINE

Siteline is a Series A SaaS startup in the construction space. We're a team of 25 full-time employees who live and work remotely across the US, with a small in-person office in San Francisco.

What problems are we solving?

We're on a mission to modernize finance for construction, an industry that employs 1 out of every 10 workers, but lacks good software tools to get the job done. Payments in construction are fundamentally broken — the antiquated billing process hasn't evolved in decades, and construction is one of the slowest industries to get paid in. We've found a unique wedge into this huge market and are growing quickly.

Why are we building this?

Millions of hardworking people are affected by this broken system — in turn making construction more expensive and inefficient for society every year. When everyone up and down the chain is on the same page with payments, contractors can focus on actually building, instead of mountains of paperwork. We’re reimagining construction finance to help contractors get paid, grow their business, and build a better future for all of us.

🕺 The Role

Siteline is hiring a Senior Backend Engineer to lead the next evolution of our integrations platform. We power billing and compliance workflows for construction subcontractors, with integrations sitting at the core of our product. We’re looking for a senior engineer to architect, build, and own the mission-critical integrations with external ERPs and construction industry platforms. You will design resilient, real-time data pipelines, navigate the complexities of imperfect third-party systems, manage sync state at scale, and build extensible systems that enable the rest of the engineering team to move faster. This role is based in our San Francisco office (3-4 days/week). We are not considering fully remote candidates at this time.

🧰 Our Stack

Backend Node.js, TypeScript, GraphQL, PostgreSQL, Redis Integrations A mix of direct API calls, database connections, and third-party vendor integrations — each with its own quirks and challenges Durable Functions We use Inngest for reliable, resumable workflows: retries, fan-out, and long-running processes without the infrastructure headache Observability Monitoring is a first-class concern. We rely on searchable dashboards, structured logging, and OpenTelemetry Dash0 to debug issues fast and keep integrations running reliably

What You’ll Do

🔌 Own our integrations platform

• Architect and build direct integrations with ERPs and construction platforms
• Design bi-directional data sync systems with clear ownership, observability, and retry logic
• Handle edge cases like rate limits, partial failures, inconsistent schemas, and long-running jobs
• Build internal tooling that makes integrations easier to develop and support

🧠 Think in systems

• Design durable data models that map external systems to Siteline’s domain
• Establish patterns for idempotency, backfills, migrations, and versioning
• Improve reliability, monitoring, and performance of integration workflows

🤝 Partner cross-functionally

• Work closely with product and customer teams to understand real-world ERP workflows
• Translate messy external APIs into clean internal abstractions
• Support customers through tricky integration edge cases when needed

📈 Raise the technical bar

• Make pragmatic architectural decisions
• Write high-quality, well-tested backend code
• Mentor more junior engineers working on integration-adjacent projects

👀 What We’re Looking For

Senior-level backend experience

• 5+ years building production backend systems
• Strong experience in API design, async processing, job queues, and distributed systems

Integration experience (required)

• Experience building and maintaining integrations with third-party systems
• Familiarity with REST APIs, GraphQL, webhooks, OAuth, data mapping, and sync architectures
• Experience handling unreliable or legacy external systems

Systems thinking

• You’ve designed systems that need to be resilient, observable, and maintainable
• You understand tradeoffs around data integrity, retries, and eventual consistency

Clear communicator

• You proactively surface risks and unknowns
• You can explain complex systems to both engineers and non-technical teammates

Startup-ready

• Comfortable operating with ambiguity
• Able to make progress without perfectly defined requirements

🍪 Brownie Points

These are not required, but especially relevant to us:

• Experience integrating with:
  • ERP systems
  • Accounting software
  • Construction tech platforms
  • Financial or payment systems
• Experience with:
  • Event-driven systems
  • GCP / Cloud Run
  • Postgres
  • TypeScript or Node
  • React
• Experience working in vertical SaaS
• Experience replacing a third-party integration provider with an in-house system

WHY SITELINE

• Small but mighty - everyone here is excellent at what they do
• Impact from day one - you’ll shape product decisions and see your work live quickly
• Challenging problems - not “yet another CRUD app”
• Hybrid with purpose - we collaborate in-person in our SF office with views of the Bay, Chinatown, and North Beach
• Low-ego culture - smart, kind teammates who care about doing great work (and are really fun to be around)

Compensation & benefits

• Salary range: $165,000 - $185,000 annually (final offer within this range will depend on experience and skills)
• Health & wellness benefits: Comprehensive health, dental, and vision insurance. Commuter benefits for in-office work.
• Equity options : As a startup, we offer equity options to ensure that you share in our success as we grow together
• Professional development : Annual $1K learning stipend to use toward classes, certifications, conferences, or other meaningful career development
• Paid time off : Unlimited PTO policy with an encouraged three-week annual minimum

LEGAL DISCLOSURES

Work location

This is an in-person role based in San Francisco, California

Equal opportunity

Siteline is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We encourage applications from all qualified individuals and are dedicated to fostering a culture of respect and belonging. If you’re passionate about our mission and excited to contribute to a diverse team, we would love to hear from you!

Fair chance ordinance

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records

Company values

Move Quickly, Together Speed is our advantage, but alignment is our path to victory. We will go farthest, fastest if we work in unison. Prioritize the mission, establish clear owners and deliverables, and execute with confidence. Reach for the Sky We are curious, open-minded, and courageous. We challenge ourselves and each other to ask more questions, push boundaries, and deliver excellence every day. Run Lean Construction is a scrappy industry where companies must do more with less. Same here. Operate efficiently, optimize strategically, and always get the most bang for our buck. Be the Steel Builds fail when the foundation is faulty. The same is true for us. Exercise good judgment, deliver on your commitments, and know your capacity—every base has its threshold, after all. Most importantly, back your teammates. We’re stronger than reinforced concrete when we support each other. Build Our Fanbase Our mission is to grow the size of the pie for everyone in construction. We only achieve that audacious goal if we keep our customers front and center. Work tenaciously to build smarter systems that solve real problems for our customers, positively impact their businesses and lives, and make them loyal fans. Shoot Straight We speak directly, candidly, and respectfully. We prioritize transparency, err on over-communicating, and understand that differing opinions and perspectives are part of a healthy company. Ultimately, it’s okay to disagree with—but still commit to—the chosen direction. At Siteline, we're looking for people with passion, grit, and integrity. We encourage you to apply even if your experience doesn't precisely match the job description. Your skills and passion will stand out—and set you apart—especially if your career has taken some extraordinary twists and turns. We know that diverse perspectives foster the innovation we need to be successful, and we are committed to building a team that encompasses a variety of backgrounds, experiences, and skills. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Join us!

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