Job Title: Back End Engineer

Company Name: Ostium

Job Url: https://www.calyptus.co/jobs?slug=dvubLvPc-s

Job Description: Ostium is the first perpetuals DEX engineered specifically for Real World Assets (RWAs). The company builds on the massive growth in on-chain perpetuals, bringing a first-of-its-kind twist through a focus on RWAs. The platform enables trading of an entirely new set of assets previously unavailable on-chain — from gold and copper to wheat, oil, stocks, and forex pairs.

Through trade execution at prices fed via Chainlink’s Functions product and a proprietary Price Oracle, Ostium is pioneering new frontiers in DeFi. The team includes Harvard graduates with experience at Bridgewater, IOI, IMO, and IPhO medalists, as well as lead engineers from prominent firms such as Maple Finance and 21Shares.

With over $6 billion in volume, Ostium has achieved product-market fit and is ready to accelerate its growth.



Ostium Labs raised $3.5 million in a seed round in October 2023.


Role
Ostium is seeking a Back End Engineer to join its dynamic team and help scale its platform. This role requires someone who can work across the entire tech stack — from frontend development to backend architecture — while maintaining a deep understanding of blockchain technology and DeFi systems.


Responsibilities
Design and implement scalable backend services using Node.js, TypeScript (NestJS), and Python.
Architect and integrate Web3 functionalities throughout the tech stack.
Design and implement caching solutions using Redis to optimize application performance.
Build and maintain API integrations between frontend and backend systems.
Ensure high performance, reliability, and security across all system components.
Collaborate with the team on technical architecture decisions and implementation strategies.
Work closely with product and design teams to implement new features.
Contribute to technical documentation and engineering best practices.

Requirements
Strong experience with Node.js, TypeScript (NestJS), PostgreSQL, AWS, and Redis.
Experience with containerization and orchestration using Kubernetes (K8s).
Experience with various communication protocols: REST, WebSockets, Server-Sent Events (SSE), etc.
Familiarity with IPFS and distributed storage systems.
Experience with ethers.js and Web3 libraries for blockchain interaction.
Experience with microservices architecture.
Strong understanding of database design and optimization.
Knowledge of security best practices and performance optimization.
Experience with automated testing and CI/CD pipelines.
Go development experience is a plus.
Experience with monitoring and observability tools such as Prometheus and Grafana is a plus.

Preferred Qualifications
Previous experience in DeFi or trading platforms.
Experience with Subgraph integration and GraphQL.
Understanding of perpetuals trading and RWA markets.
Contributions to open-source projects.
Experience with high-frequency trading systems or real-time data processing.

Benefits
Competitive compensation package.
Opportunity to work with cutting-edge blockchain technology.
Collaborative environment with highly skilled team members.
Flexible work arrangements.
Professional development opportunities.


This role is ideal for someone passionate about DeFi, who enjoys working across the full technical stack, and wants to be part of building the future of on-chain RWA trading. Interested candidates are encouraged to submit their resume, GitHub profile, and any relevant project examples demonstrating their backend stack expertise.

Skills
Core Skills
Microservices
Redis
TypeScript
Node.js
PostgreSQL
Secondary Skills
AWS
Kubernetes
CI/CD
Open source
Performance management
AI & Automation Tools/Skills
ChatGPT
Additional Info
Culture
Well-being and Wellness
Main Language:
English
Visa Sponsorship:
Not Available
Relocation Support:
Not Available
Company Overview


Posted: 106 days ago
No funding information available
Appl