Senior / Staff Software Engineer (Backend)

21bitcoin; Remote; EUR 60.000 - 120.000; Vollzeit

Zusammenfassung

A fintech startup is seeking a Senior / Staff Software Engineer (Backend) to lead backend systems design and implementation. This remote-first role, offering flexibility and optional in-person collaboration in Munich, Salzburg, or Vienna, requires strong backend programming skills, especially in TypeScript or Go. You will contribute to high-quality software development driving innovative Bitcoin financial solutions while enjoying competitive compensation and equity opportunities.

Leistungen

Competitive salary (€60,000–120,000 gross p.a.)

Equity opportunities

Flexible working hours

Mentorship and growth opportunities

Qualifikationen

• 8+ years of backend development, system architecture, and technical leadership experience.
• Strong experience with TypeScript or Go, and building scalable systems.
• Excellent problem-solving skills and a self-starter mindset.

Aufgaben

• Rebuild the core backend with TypeScript / Go.
• Drive technical excellence and promote clean, modular code.
• Collaborate with the engineering team to solve complex challenges.

Kenntnisse

TypeScript

Go

Backend development

System architecture

PostgreSQL

DynamoDB

Serverless tools

Tools

NestJS

GraphQL

Terraform

Docker

Jobbeschreibung

21bitcoin aims to simplify Bitcoin through investment solutions. Founded in 2021 in Salzburg, the company has grown to a lean team of about 21 people, with recent investment from GVB Raiffeisenbank Bayern Mitte.

Position

Senior / Staff Software Engineer (Backend) – full‑time, remote‑first with optional in‑person hubs in Munich, Salzburg, and Vienna.

Responsibilities

• Rebuild the core backend with TypeScript / Go, ensuring robustness, scalability, and future‑proofing.
• Identify and replace outdated implementations, tools, and processes with high‑performance alternatives.
• Own end‑to‑end delivery: design, implement, test, deploy, and maintain backend systems.
• Drive technical excellence: promote clean, modular code, seamless integrations, and optimal architecture.
• Collaborate with the engineering team to solve complex challenges and continuously raise the bar for quality.

Success Metrics

• Highly scalable, reliable, and maintainable backend systems.
• Faster, more efficient feature delivery by development teams.
• Adoption of clear coding practices and best‑in‑class tools across the engineering group.
• Thriving culture of responsibility, collaboration, and professional standards.

Toolbox

• Languages & Frameworks: TypeScript, Go, NestJS, GraphQL.
• Databases: PostgreSQL, DynamoDB.
• Infrastructure: Serverless (CDK, Terraform), Fargate, Docker.
• Messaging & Streams: Kinesis, Kafka, SNS, SQS, EventBridge.
• Workflow Orchestration: Temporal, Restate, Inngest.

Requirements

• 8+ years of backend development, system architecture, and technical leadership experience.
• Strong experience with TypeScript or Go, and building scalable systems.
• Proficiency with PostgreSQL/DynamoDB and serverless/cloud‑native tooling.
• Excellent problem‑solving skills and a self‑starter mindset.
• Strategic thinker who balances innovation with business impact.
• Passion for maintainable, well‑tested, and high‑quality code.
• Located within ±2 hours of CET or willing to relocate to Munich, Salzburg, or Vienna.

Benefits

• Impact: Shape Bitcoin financial services and lead critical projects.
• Autonomy: Drive impactful solutions in a fast‑paced startup.
• Innovation: Use modern tools and cloud‑native infrastructure.
• Growth: Mentorship and learning opportunities with a skilled team.
• Compensation: Competitive salary (€60,000–120,000 gross p.a.) plus equity.
• Remote first with optional in‑person hubs; flexible hours; relocation assistance.

Interview Process

• Resume review and portfolio.
• Exploratory call.
• Test assignment (1‑week take‑home).
• Engineering deep dive (case study/technical interview).
• Workshop: solve real‑world problems.
• Decision and offer.