Senior Backend Engineer (IMMEDIATE JOINER)

**About** We are currently seeking a highly talented and motivated **Senior Backend Engineer** to join our dynamic team. As a core member of our engineering team, you’ll own backend systems end to end — from architecture through deployment — and help define the technical foundation of Aries. **What does the role look like?** As a Senior Backend Engineer, you will be responsible for building and scaling the backend infrastructure that powers our trading platforms and developer products. You’ll work directly with our product, frontend, and infrastructure teams to design, implement, and optimize services that handle mission-critical workloads. You’ll be expected to: - Architect and implement backend services in Go. - Design APIs, data models, and distributed systems that scale reliably. - Ensure performance, resilience, and fault tolerance in production environments. - Collaborate with frontend, product, and growth teams to deliver features from concept to launch. - Contribute to overall systems architecture in a modern cloud-native environment. **About Aries** You will be working on our core products: - [****](http://Aries.com) – the first open-source brokerage for active traders. - [****](http://Finance.dev) – developer infrastructure for trading products. **Requirements** - Strong proficiency in **Go (Golang)**. - Experience designing and maintaining scalable backend services and APIs. - Knowledge of databases (SQL/NoSQL) and messaging systems. - Experience with cloud platforms (AWS/GCP/Azure) and container orchestration (Docker/Kubernetes). - Proven track record of writing clean, maintainable, and testable code. - Ability to contribute to systems architecture and lead backend engineering discussions. **Nice to haves** - Interest in trading, fintech, or financial infrastructure. - Experience with low-latency, high-throughput systems. - Exposure to open-source contributions or impactful side projects. **Who you are** - You move with urgency, take initiative, and do what it takes to win. - You know the difference between excellent and mediocre engineering. - You’re highly opinionated yet open to stronger logic and collaboration. - You see elegant solutions in code and systems design. - You value precision, clarity, and accountability. - You thrive in startups and want to help entrepreneurs grow and thrive. **Benefits overview** - Competitive base salary depending on experience + equity package. - Unlimited PTO with a guaranteed two-week minimum. - Internet & equipment reimbursement. - Hybrid company model, hiring everywhere. - Latest 14” or 16” MacBook Pro.