Staff Software Engineer, Backend

FarCoder; Northern (KY); Hybrid; USD 200,000 - 240,000; Full time

Benefits offered by this job

100% medical, dental, vision coverage

16 weeks paid parental leave

Unlimited PTO

Remote work stipend

Professional development budget

Job summary

Customer.io is hiring a remote Staff Software Engineer, Backend to lead the architecture of high-scale messaging systems in Go. You’ll shape direction across squads, drive critical reliability and performance improvements, and mentor senior engineers to raise the team’s capabilities.

The role emphasizes cloud-native design in AWS/GCP, extensive Go expertise, and cross-functional collaboration to move architecture forward while delivering measurable impact for billions of messages daily.

Qualifications

• 10+ years building scalable, distributed systems in Go or similar statically typed language.
• Proven track record designing production-ready systems with throughput, cost and reliability tradeoffs.
• Experience designing observability, metrics, alerting, rollback and backpressure as first-class concerns.

Responsibilities

• Shape the technical direction of distributed messaging systems in Go and set architectural standards.
• Drive cross-squad initiatives, align leadership, and raise engineering bar with reusable frameworks.
• Mentor engineers, contribute to design reviews, and document patterns for broader reuse.

Skills

React

Go

AWS

GCP

REST

Tools

MySQL

Scala

Unity

Job description

# Remote Staff Software Engineer, Backend Job at Customer.ioUSA4 hours agoFull TimeUSA$200000 - $240000 USDReactGoAWSGCPRESTMedicalMySQLScalaUnity“When applying, mention the word FarCoder to show you’ve read the job post completely. Employers can look for these words to identify genuine, thoughtful applicants and avoid spam.”## Job OverviewCustomer.io is hiring a remote candidate for Staff Software Engineer, Backend. This is a full time position. Work location: USA.The role typically involves technologies such as React, Go, AWS, GCP, REST, Medical.This role involves building user interfaces using technologies such as React.## Key Responsibilities* Shape the technical direction of our distributed messaging systems in Go — making the high-level architectural calls on mission-critical services where scale, cost, and reliability are all in tension* Take on ambiguous, high-stakes problems that cross squad and function boundaries, and drive them to a decision when the right answer isn't obvious to anyone yet* Build consensus on contested technical questions across teams, and communicate the tradeoffs clearly enough that senior leadership can act on them* Raise the department's bar — set quality and design standards, mentor senior engineers, and turn what you know into frameworks and documentation other teams can use without you in the room* Drive engineering process and tooling improvements that span multiple squads, not just your own* Participate in an on-call rotation as required, supporting the reliability of the systems you build* Interview and calibrate against our career ladder, giving honest, evidence-based assessments of candidates* Use AI agents to make multi-file changes by scoping the work, writing the prompt, and verifying the output## Required Skills### Primary Skills* React* Go* AWS* GCP* REST### Secondary Skills* Medical* MySQL* Scala* UnitySkills required for this role include React, Go, AWS, and related tools for day-to-day development.## Job Details* **Employment Type:** Full Time* **Location:** USA* **Salary:** $200000 – $240000 USD## Tech StackReact, Go, AWS, GCP, REST, Medical, MySQL, Scala, Unity## Role detailsHi, I'm Paul, VP of Engineering at Customer.io. We're looking for a staff engineer to set technical direction for the systems that move billions of messages a day. This isn't a role about shipping more, faster. It's about deciding what gets built, where the architecture needs to go next, and raising the ceiling for the engineers around you.## About Customer.ioOver 9,000 companies — from scrappy startups to global brands — use our platform to send billions of emails, push notifications, in-app messages, and SMS every day. Customer.io powers automated communication that people actually want to receive.We help teams send smarter, more relevant messages using real-time behavioral data. Under the hood: Go, React, Ember and AI help us ship fast and scale with confidence.## What We Value**Ownership at company scale**You take on the problems nobody has claimed yet — the ones that span squads, have no obvious owner, and would quietly cost us a year if left alone. You either solve them or get leadership aligned to.**Engineers with product taste**You think like a user, not just an engineer. You connect architectural decisions to what customers actually experience, and you can explain that connection to people who don't write Go.**A healthy skepticism for \"the way things are done\"**You retire practices that have outlived their usefulness, including ones you helped build. Best practices matter — but never more than forward motion.**Force multiplication**Your best quarter isn't measured by what you shipped. It's measured by what the department can now do that it couldn't before.## What You'll Do## What we're looking for* 10+ years building scalable, distributed systems in Go (or similar statically typed languages), including several as the person others turned to on architecture* Depth across multiple systems or domains, not just one — you've been the recognized expert in more than one place* A track record of designing for production reality: you quantify tradeoffs in throughput, cost, and reliability rather than picking a reasonable path and defending it* Experience designing observability and recovery as first-class concerns — metrics, alerting, rollback, backpressure, checkpointing — not logging added afterward* Comfort working in cloud-native environments (AWS, GCP), with relational databases (we use MySQL) and a real understanding of performance tradeoffs* Evidence of making other engineers better: mentorship, technical writing, design review, standards that outlasted your involvement* A bias for action over perfection, and the judgment to know which decisions are worth slowing down for## Compensation & BenefitsWe believe in transparency. Starting salary for this role is $200,000 - $240,000 USD (or equivalent in local currency) depending on experience and subject to market rate adjustment. This role also carries a 10% annual bonus target.We know our people are what make us great, and we're committed to taking great care of them. Our inclusive benefits package supports your well-being and growth, including 100% coverage of medical, dental, vision, mental health, and supplemental insurance premiums for you and your family. We also offer 16 weeks paid parental leave, unlimited PTO, stipends for remote work and wellness, a professional development budget, and more.See full benefits here →## Our ProcessNo gotchas, no trick questions - just a clear, human process designed to help both of us make an informed decision.1. **Application** - We review everyone with care. Tell us why you're interested.2. **Recruiter Call (30 mins)** - Let's chat about what you're looking for and how we work.3. **Hiring Manager Interview (60 mins)** - Talk with one of our hiring managers about your working style and a project you've owned end-to-end, plus a short AI-assisted coding exercise.4. **Architecture Interview (60 mins)** - A collaborative system design conversation focused on scaling challenges, tradeoffs, and failure modes.5. **Take-Home Assignment** - Complete a short, realistic task similar to what you'd work on here.6. **Assignment Review Call (60 mins)** - Walk us through your work and discuss tradeoffs, priorities, and how you'd iterate.All final candidates will be asked to complete a background check and employment verifications as part of our pre-employment process.Customer.io recognizes the stifling impact of systemic injustice on diverse communities. We commit to using our influence to increase inclusion and equity within the tech industry. We strive to build an inclusive team culture, implement bias-free hiring practices, and develop community partnerships to expand our global impact.Zoom is the only video conference platform that we use, virtual interviews will be conducted using the video capability (i.e., not via the chat), and offers will be extended in writing on official Customer.io letterhead. Please be vigilant in all of your job search activity, and if you have any questions please contact [e-mail].## Join us!We believe in empathy, transparency, responsibility, and, yes, a little awkwardness. If you're excited by what you read and want to build software that makes communication better for everyone—apply now.