Staff Elixir Engineer

We are looking for an experienced Staff Elixir Engineer based in Germany (100% remote work) to join a compact core team (CTO, 2 developers, 1 QA) during a pivotal growth phase of our product.

Hellgate has successfully transitioned from active development to production and is now scaling. The primary goal is to accelerate development velocity while maintaining high reliability standards appropriate for the Fintech domain.

Domain & Context 🔎

• 💳 Industry: Fintech (Payment orchestration, card storage/tokenization, 3DS, integration with payment providers and network schemes)

• 🧩Technical Stack & Environment

  • Core: Elixir, Phoenix Framework, Ecto

  • OTP: Deep understanding required (Supervision trees, GenServer), distributed Erlang is a plus

  • Database: PostgreSQL (primary), Mnesia (limited usage)

  • Infrastructure & DevOps: Docker, Kubernetes (K8s), Azure, Terraform

  • Messaging: NATS (episodic usage)

  • Frontend: Minimal involvement (React), but a readiness to work with frontend code is expected

• ⚙️ Philosophy: "Devs do Ops" - we embrace a culture where developers own their code from design to production infrastructure

• 🧬Mindset: Long-term product vision - we prioritize maintainability, reliability, and code longevity over "quick fixes"

Your role in our universe 🪐

• Design and implement secure, scalable solutions for payment processing and tokenization

• Take over full ownership of a technical direction

• Manage deployment and infrastructure using Terraform and K8s (DevOps in the hard way)

• Define technical strategy for specific domains and lead architectural decisions

• Write high-quality code intended to live and be maintained "forever"

• Work with external payment providers and complex network schemes

Your star qualities 💫

• Extensive experience with Elixir

• Ability to work with processes, understand concurrency models, and build robust systems (beyond just writing controllers)

• Demonstrated DevOps skills, with experience using Docker and Kubernetes; familiarity with IaC (Terraform) is highly desirable

• Basic understanding of React (ability to read/tweak code)

• Ability to make technical decisions based on long-term product viability rather than short-term speed

• Comfortable working fully remote in English (B2+), taking ownership of your work and collaborating independently in a small team with fluid processes that will evolve as the team grows

Why join us?

• Our values 💛
  We believe in personal responsibility, flexibility, and trust.

• Our team 🦸‍♂️
  We're bold.

• Our products and projects 🚀
  They're inspiring, innovative, and growth-oriented.

• Our offer 🌟
  Up to 150k yearly salary, 100% remote work from Germany (relocation supported), flexible working hours, virtual stock options, yearly company retreat and monthly remote social events, feedback sessions and development plans, 28 days of vacation, ...