Senior Platform Engineer - Loancrate

The Job Sauce

Job Overview

Location

Remote

Job Type

Full-time

Full Job Description

📋 Description

• Senior Platform Engineer at Loancrate: Build the foundational infrastructure and developer tooling that enables product teams to ship features rapidly, reliably, and securely — directly impacting the company’s mission to automate mortgage origination and save lenders over $16B annually in operating expenses.
• What the person will do day to day:
• Design and evolve AWS infrastructure using Terraform and Pulumi Cloud, treating infrastructure as a product that engineering teams depend on for safe, frequent deployments.
• Build and maintain self-serve developer experiences including local dev tooling, templates, golden paths, and CI-integrated workflows that make "the right thing" the easy thing for engineers.
• Pioneer tooling and best practices for AI-first software engineering, including background agents for autonomous code changes and frameworks enabling AI product experiences to self-optimize based on user interactions.
• Extend internal TypeScript platform libraries — from schema/code generation to data access and instrumentation — to standardize how teams build and ship features with safer, more consistent primitives.
• Make Loancrate’s platform observable and self-healing by instrumenting services with Datadog, building meaningful alerting, reducing incident blast radius, and implementing SLOs and auto-scaling.
• Bake security into platform defaults across IAM, secrets management, encryption, audit logging, and DDoS protection while preserving engineering velocity.
• Solve scaling challenges as the AI-native mortgage platform grows, including Aurora PostgreSQL tuning, Kafka throughput optimization, and cost-efficient compute autoscaling.
• Own reliability and performance of the data platform (Aurora PostgreSQL), managing provisioning, backups, failover, read replicas, and query tuning to ensure safe usage is the default.
• Reduce toil through automation and self-service tooling so engineers can move fast without waiting on the platform, and contribute to architecture decisions, documentation, and shared on-call rotation.
• About the team or company:
• Loancrate is a remote-first team founded in 2020 with a mission to make home-buying simpler and less expensive by replacing outdated mortgage software with AI-native tooling that has already powered over $85 billion in new home loans.
• The company values collaboration, radical transparency (sharing both successes and failures), and having fun while solving complex problems in the home-lending industry — ideal for engineers who thrive on diving deep quickly.
• What the person can learn or achieve in this role:
• Gain deep expertise in building internal platforms that scale with AI workloads, combining infrastructure engineering with developer experience innovation at the forefront of AI-native software development.
• Shape the technical foundation of a high-impact fintech startup where your work directly enables faster, safer, and more reliable loan origination — potentially saving the industry billions in annual operating costs.

🎯 Requirements

• Experience building internal platforms or developer tooling such as code generation, CLIs, templates, shared SDKs, or frameworks that improve engineering velocity.
• Strong TypeScript skills with API design taste — comfortable building stable primitives that other engineers rely on.
• Deep AWS experience across compute, networking, storage, and security services (ECS, Lambda, VPC, ALB, IAM, RDS, ElastiCache, MSK, OpenSearch, S3, CloudWatch, CloudTrail, GuardDuty).
• Proficiency with Terraform and/or Pulumi for infrastructure-as-code, including modules, workspaces, and CI-driven plan/apply workflows.
• Track record designing and operating CI/CD systems that enable large engineering teams to ship frequently and confidently (e.g., Buildkite, GitHub Actions).
• Experience building production observability stacks using Datadog, CloudWatch, Sentry, distributed tracing, and SLOs to drive reliability and incident reduction.

🏖️ Benefits

• Robust medical coverage with 100% of employee and family premiums covered by the company.
• Vision and dental coverage included as part of the comprehensive health benefits package.
• 401(k) retirement plan with company support for long-term financial planning.
• HSA and FSA accounts available for tax-advantaged healthcare and dependent care spending.
• Remote-first culture — work from anywhere you do your best work, with no geographic constraints.
• Flexible time off policy — trusted to manage your time without accrual tracking or rigid limits.

Skills & Technologies

TypeScript

React

Node.js

Express

PostgreSQL

Senior

Remote

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About The Job Sauce

The Job Sauce is a career-coaching firm that helps professionals land six-figure roles through résumé writing, LinkedIn optimization, interview preparation and salary-negotiation training. Founded by former tech recruiter Madeline Mann, the company offers self-paced online programs, live group coaching and one-on-one services aimed at mid-career job seekers. Its methodology focuses on data-driven résumé design, strategic networking and persuasive storytelling to secure interviews and offers faster. The firm has served thousands of clients across technology, finance, healthcare and other industries, publishing free career content on YouTube and LinkedIn to broaden access to job-search best practices.

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