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Back End Developer

Back End Developer

Eterna LabsKochi, IN
4 hours ago
Job description

About Eterna Labs

Eterna is on a mission to build a best-in-class, low-latency trading interface for crypto markets engineered for next-generation performance. Founded by alumni of MIT, Harvard, and Yale, and backed by visionary investors like Naval Ravikant and Accomplice VC, we’re a deep-tech startup obsessed with speed, scalability, and reliability.

Our flagship product, HyperFlash, delivers high-speed trading infrastructure for digital assets. It combines liquid staking, MEV optimization, and a low-latency trading terminal bringing the precision of traditional finance to crypto. HyperFlash empowers traders to earn more, move faster, and access on-chain markets with institutional-grade performance.

Role Overview

We’re looking for a Backend Engineer who thrives in fast-paced, high-performance environments. You’ll work closely with a small team of elite engineers to build, optimize, and scale backend systems that power high-frequency, real-time trading.

You’ll get to ship production code daily, design systems that handle massive live data, and learn how a deep-tech startup scales from 0 → 1.

Tech Stack

  • Languages & Frameworks : TypeScript, Node.js, Express, Next.js
  • Databases : PostgreSQL, MongoDB, Redis
  • Messaging & Streaming : Kafka, SQS
  • Infrastructure : AWS (ECS, Lambda, RDS, ElastiCache, S3, CloudFront, CloudWatch), Docker
  • Testing & CI / CD : Jest, GitHub Actions
  • Protocols : REST, GraphQL, WebSockets

What You’ll Do

  • Build and optimize low-latency indexers and data storage systems with high uptime.
  • Architect and refine database schemas and storage formats for large-scale performance.
  • Ingest and process massive real-time data streams at scale.
  • Implement Redis caching for sub-second live data delivery.
  • Design and develop REST / GraphQL APIs and backend services.
  • Manage and monitor AWS infrastructure and CI / CD pipelines.
  • Develop and maintain Kafka-based queues and WebSocket services.
  • Optimize performance-critical paths and data aggregation layers.
  • Integrate third-party services (e.g., wallet / KMS solutions).
  • Build real-time notification and sniping systems for on-chain alerts.

    • You’re a Great Fit If You Are :

  • Resourceful - You figure things out and ship, no matter what.
  • Fast learner - You pick up new tools, frameworks, and paradigms quickly.
  • High ownership mindset - You take pride in your code and its impact.
  • Performance-obsessed - You love optimizing systems for speed and scale.
  • Curious and experimental - You’re comfortable breaking things to learn fast.
  • Familiar with AI tools like Cursor, GPT, Claude, Gemini, and other emerging platforms.
  • Excited to ship 7 days a week and work in a culture that values momentum over perfection.
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    Back End Developer • Kochi, IN

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