Senior Engineer, Platform

The Position

HappyCo is hiring a Senior Engineer, Platform to help scale the foundational systems that power our products and integrations. This role focuses on improving the reliability, performance, and extensibility of the platform while accelerating delivery of roadmap-critical initiatives.

The position plays a key role in three strategic initiatives:

• Expand our Property Graph to unlock new product capabilities
• Integration reliability and customer visibility to support mid-market adoption and retention
• Plugin and API enablement to accelerate ecosystem expansion

This engineer will operate as a hands-on senior individual contributor, owning delivery across platform components including integrations, APIs, and extensibility surfaces. The role requires strong technical judgment, cross-team collaboration, and a focus on measurable production outcomes.

What you'll do (day to day)

• Design, implement, and maintain scalable platform services and APIs
• Lead delivery of roadmap-critical platform capabilities including Property Graph and integration surfaces
• Evaluate architectural tradeoffs to ensure reliability, scalability, and extensibility
• Integration & Ecosystem Enablement
• Build and improve APIs and plugin frameworks enabling partner integrations
• Ensure integrations operate reliably across customer environments
• Improve visibility and monitoring across integration workflows
• Improve platform reliability, observability, and application performance
• Use production telemetry and monitoring data to diagnose and resolve performance issues
• Reduce operational overhead and improve system resilience
• Work closely with Product Engineering leads and stakeholders to deliver platform capabilities
• Support cross-team execution for growth and retention initiatives
• Collaborate with product leadership and engineering stakeholders
• Participate in incident response and root-cause analysis
• Implement preventative improvements based on operational learnings
• Ensure safe rollouts and strong production outcomes

What were looking for

Required Qualifications

• 6+ years of professional software engineering experience
• Technologies Used: Golang, Ruby on Rails & Rust
• Strong experience building platform services, APIs, or infrastructure systems
• Experience improving system reliability, observability, and performance
• Demonstrated experience working on distributed systems or complex backend platforms
• Ability to own problems from design through production outcomes
• Strong collaboration skills working across engineering and product teams

Preferred Qualifications

• Experience designing graph-based data models or complex domain modeling
• Experience building developer platforms, plugin frameworks, or extensibility systems
• Background working with integration-heavy SaaS platforms
• Experience improving operability and observability of production systems
• Familiarity with cloud-native architecture and distributed systems

How we measure success

First 90 Days

• Contribute to at least one roadmap-critical platform milestone
• Participate in incident response with documented prevention improvements
• Deliver one measurable application performance improvement

Longer-Term Success

• Platform roadmap milestones land with lower execution risk
• Fewer reliability regressions across key integration and API paths
• Faster cross-team delivery of growth and retention initiatives
• Clear improvements in system performance, observability, and reliability

Keys to optimum happiness at HappyCo

• Thrives in ambiguity and proactively builds clarity
• Focuses on long-term impact over quick wins
• Enables others through systems, not mandates
• Leverages technology and AI to empower people and simplify complexity
• Embraces the challenges and rewards of growing in a scaleup environment

Timeline Expectations

First 30 days:

Learn the current platform architecture, core service boundaries, and deployment/runtime model

Build context on high-impact integration pathways, API surfaces, and reliability pain points

Get productive with our observability patterns and incident workflow

First 60 days:

Own and ship at least one scoped improvement to an API or integration surface with measurable impact on reliability, throughput, or operability

Improve instrumentation and alerting for an existing platform workflow

First 90 days:

Contribute to at least one roadmap-critical platform milestone

Participate in at least one incident with documented prevention follow-through

Deliver one measurable application performance improvement

Lead a meaningful cross-team implementation slice in platform scope and ship iteratively

First 12 months:

Platform milestones land with lower execution risk; fewer reliability regressions on key integration and API paths

Faster cross-team delivery of growth and retention priorities

Clear improvements in system performance, observability, and reliability

Raised bar on operational quality through documentation, standards, and collaborative execution

About HappyCoFounded in 2011, HappyCo (happy.co) builds mobile and cloud solutions to enable real-time property data. Our flagship product suite 'Happy Property’ has 5M units on its platform.

We’re everyday people with a shared purpose — improving the lives of others. Our team is made up of thinkers, talkers, planners, makers, builders and everything in between. Together, we’re turning our passions into happier communities!

When customers use our software, their communities get stronger. Our tools empower everyone in multifamily property management to improve their operations and maximize returns, which means they’re building better experiences for their residents. Learn more about our Product Vision here!

HappyCo CultureHappyCo strives to build better communities. So naturally, we are dedicated to making our own community an enjoyable place that allows us do our best work. We’re devoted to building an inclusive, supportive culture that empowers each HappyCo’er to succeed and grow. To learn more about our culture, check out our careers page!

We offer:

• Work from anywhere supported by a flexible company culture
• Opportunity to work for one of the fastest growing technology companies in the PropTech industry
• Unlimited vacation time
• Generous paid parental leave
• Competitive and equitable pay, including stock options
• Monthly stipends to support Wellness and Home Office expenses

We believe in supporting people to do their best work and thrive, and building a diverse, equitable, and inclusive company is core to our mission. Our goal is to ensure that HappyCo upholds an inclusive environment where all people feel that they are equally respected and valued, whether they are applying for an open position or working at the company. We welcome applicants of any educational background, gender identity and expression, sexual orientation, religion, ethnicity, age, citizenship, socioeconomic status, disability, and veteran status. HappyCo is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures.