Senior Fullstack Engineer

place; United States; Remote; USD 150,000 - 210,000; Full time

Benefits offered by this job

Flexible work arrangement

Stock options

401(k) match

Comprehensive insurance

PTO

Job summary

PLACE is a fast-growing mortgage technology platform seeking a senior fullstack engineer to partner with founders and the CTO to ship production features end to end. The role spans Ruby on Rails services, TypeScript and Node services, a GraphQL gateway, and React frontends, with a strong emphasis on backend systems and third-party integrations in a regulated domain.

You will design robust integrations, lead multi-tenant architecture, and use AI tools daily to plan, implement, test, and review

Qualifications

• 7+ years building and running production web applications from vague description to shipped features.
• Deep Ruby on Rails experience including API-only services, ActiveRecord, PostgreSQL and background jobs.
• Proven ability to ship UI with React/TypeScript and work with GraphQL on server and client.

Responsibilities

• Design, build, and maintain features across Rails APIs, TS/Node services, GraphQL gateway, and React frontends.
• Own integrations with external platforms like loan origination systems and document vendors, including mapping and retries.
• Design asynchronous multi-step workflows with queues and saga-style orchestration for a multi-tenant platform.
• Lead technical design with design docs and architecture decisions; uphold high code review standards.
• Join on-call rotation, lead incident response, and coordinate with support on escalations.
• Leverage AI and agentic coding tools daily to plan, implement, test, and review; build shared AI tooling and guardrails.

Skills

Ruby on Rails

TypeScript

React

GraphQL

PostgreSQL

Distributed systems

AI tools

Code review

Security

Tools

PostgreSQL

GraphQL

Apollo

Docker

Redis

AWS

CI/CD

Job description

Role overview

A senior fullstack engineering role on a fast-growing mortgage technology platform, partnering closely with founders and the CTO to ship production features end to end. The work spans Ruby on Rails services, TypeScript and Node services, a GraphQL gateway, and React frontends, with a strong emphasis on backend systems and third-party integrations in a regulated domain.

Responsibilities

• Design, build, and maintain features across Rails APIs, TypeScript and Node services, a GraphQL gateway, and React frontends.
• Own integrations with external platforms such as loan origination systems, mortgage insurance providers, and document or e-sign vendors, including mapping, sync, reconciliation, retries, and idempotency.
• Design asynchronous, multi-step workflows using message queues, background jobs, and saga-style orchestration, keeping a multi-tenant platform correct and secure.
• Lead technical design for significant features through design docs and architecture decision records, then hold a high bar in code review.
• Join the on-call rotation, lead incident response, run blameless postmortems, and partner with customer support on lender-reported escalations.
• Use AI and agentic coding tools daily to plan, implement, test, debug, and review, while building shared AI tooling and guardrails for the team.

Requirements

• 7+ years building and running production web applications, taking problems from vague description to shipped, monitored solutions.
• Deep Ruby on Rails experience, including API-only services, ActiveRecord, PostgreSQL, background jobs, and RSpec.
• Comfort shipping UI with React and TypeScript, plus working knowledge of GraphQL on server and client (Apollo experience a plus).
• Experience with distributed, event-driven systems, debugging cross-service failures, and handling third-party integrations that are slow, inconsistent, or poorly documented.
• Advanced daily use of AI and agentic coding tools, with instincts for multi-tenant data isolation, security, and handling sensitive financial information.
• Strong communication skills, including writing design docs, explaining incidents to non-engineers, and disagreeing productively with product managers.

Nice to have

• Background in mortgage technology or another regulated, integration-heavy domain (fintech, lending, insurance, payments, healthcare).
• Familiarity with LOS platforms, MISMO standards, Node.js and TypeScript services, Elasticsearch, Redis, Docker, AWS, CI/CD, saga or workflow orchestration patterns.
• Mentoring engineers and leading cross-team initiatives.

Benefits and work setup

• Flexible work approach with the option to work from home, an office, or while traveling.
• PTO as needed, comprehensive insurance coverage, 401(k) match, stock option grants, and a stock purchase plan, with broad employee ownership.