Hypofriend GmbH

Senior Ruby Backend Engineer with affinity for observability (d/w/m)

Full-time4-5 yrsBerlinNot disclosedApply by 13 Oct 2026
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Overview

Hypofriend has helped thousands of customers navigate the difficult journey of buying a home. Our online platform helps customers from calculating their affordability to getting matched to relevant properties to calculating and processing the optimal mortgage. As a Senior Backend Engineer with an affinity for observability, you would be supporting both a customer-facing and an advisor-facing produ

What you'll do

  • Hypofriend has helped thousands of customers navigate the difficult journey of buying a home.
  • Our online platform helps customers from calculating their affordability to getting matched to relevant properties to calculating and processing the optimal mortgage.
  • As a Senior Backend Engineer with an affinity for observability, you would be supporting both a customer-facing and an advisor-facing product that run on Vue.js, GraphQL, and Ruby on Rails, powered by AWS.
  • Our customer-facing products include complex calculators wrapped in a simple UI, with a powerful calculation engine that takes thousands of mortgage products and optimizes them for our customers.
  • Our advisor-facing products include a fully-fledged back-office that ensures customer interactions over email, chat, and telephone, as well as the processing and handling of mortgage applications and financial documents, are reliable, efficient, and secure.
  • You'll help ensure our calculation engines, back-office tools, and customer-facing platform become more resilient and secure as we grow.
  • Tasks ๐Ÿ’ช๐Ÿฝ Individuals who like getting things done ๐Ÿ’ฌ Excellent communication skills, able to work closely with backend engineers and product teams ๐Ÿ” Eagerness to understand the systems end-to-end, from application code to the infrastructure it runs on ๐Ÿ”ง Someone who is as comfortable writing infrastructure-as-code as they are debugging a production incident ๐Ÿ“ˆ A pragmatic approach to reliability, building the right amount of resilience, focussing on the key building blocks and clean architecture Our technology stack โš™๏ธ Backend Ruby 4.0 (Rails 8.1) PostgreSQL 16 Serverless Ruby, Node.JS, Python ๐Ÿ–Œ๏ธ Frontend Vue.js 3 CSS3 (flex & friends) ๐Ÿ‘ท๐Ÿฝ Infrastructure AWS: ECS, Lambda, RDS, CloudFront Terraform for infrastructure-as-code CI/CD pipelines ๐Ÿ” Testing & Reliability RSpec Monitoring & alerting tooling Requirements Strong commercial experience with Ruby (min 4-5 years), ideally including Ruby on Rails 7/8 RSpec experience Good grasp of OO patterns Sentry , GitHub and Datadog are your best friends Hands-on production experience with Terraform for infrastructure-as-code Working knowledge of AWS (ECS, Lambda, RDS, CloudFront, VPC networking, IAM) Experience building and maintaining CI/CD pipelines Solid understanding of observability : monitoring, logging, and alerting Experience with containerization (Dock.

Requirements

  • Practical experience with Engineering.
  • Experience level: 4-5 yrs.
  • Strong written and verbal communication in English.
  • Comfortable working on-site in Berlin.

Skills

Engineering

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