Senior Backend Engineer - Intents API

MLabs; Remote; AED 477,000 - 606,000; Full time

Job summary

A leading blockchain technology firm is seeking a Senior Backend Engineer to design and optimize backend services for their multi-chain DeFi platform. You will be responsible for creating high-performance, low-latency APIs and ensuring data integrity across systems. The ideal candidate has extensive experience in backend development, particularly with TypeScript and Node.js, as well as a solid understanding of blockchain technology. This role offers competitive compensation and the flexibility of fully remote work.

Benefits

Equity participation from Day 1

30 days of Paid Time Off (PTO)

Annual team offsites

Remote setup grant for home office

Annual personal development budget

Qualifications

• 5+ years of backend development experience building and scaling high-throughput services.
• Expert proficiency in TypeScript/Node.js with NestJS framework experience.
• Strong ability to build fault-tolerant microservices.
• Experience with relational databases and complex query optimization.

Responsibilities

• Design and maintain low-latency APIs for quote management.
• Implement mechanisms for data integrity and verification.
• Build infrastructure for real-time broadcasting of data.
• Collaborate with various teams for seamless integration.

Skills

TypeScript

Node.js

NestJS

Blockchain security

Microservices

WebSockets

PostgreSQL

Tools

Redis

Terraform

AWS

GCP

K8s

Job description

Senior Backend Engineer (Intents & Order Infrastructure) – Remote (EMEA). Compensation: $130K - $165K. We simplify multi‑chain DeFi for traditional financial institutions, fintechs, and service providers by offering a unified API to access all on‑chain liquidity across major blockchains, ensuring the best prices for same‑chain and cross‑chain swaps.

Our platform is a passionate, remote‑first team on a mission to enable a fairer, more decentralized world by making complex blockchain technologies accessible to everyone. We are looking for a Senior Backend Engineer to lead the development and scaling of our core off‑chain coordination service, the Order Server.

Key Responsibilities

• Design and maintain highly available, low‑latency APIs for quote management and system‑wide status retrieval.
• Develop rigorous mechanisms to ensure data integrity, including digital signature verification (EIP‑712), timing constraints, and co‑signature logic.
• Build and optimize infrastructure for real‑time broadcasting of validated data to external liquidity providers and execution partners.
• Integrate with data indexing services to monitor the multi‑phase status of core system objects across distributed environments.
• Implement advanced logic for data aggregation, caching, and partner reputation systems to ensure an optimal user experience.
• Work closely with Smart Contract, Product, and other teams to ensure seamless integration and provide comprehensive documentation for backend architecture.

Qualifications

• 5+ years of backend development experience building and scaling mission‑critical, high‑throughput services.
• Expert proficiency in TypeScript/Node.js and deep experience with the NestJS framework.
• Deep understanding of blockchain security primitives (EIP‑712), transaction execution flows, and reading on‑chain events/logs.
• Strong ability to build fault‑tolerant microservices and experience with real‑time systems (WebSockets, Redis Pub/Sub).
• Solid experience with relational (PostgreSQL) and complex query optimisation.
• Ability to work autonomously, prioritise tasks effectively, and take ownership of projects from end to end.

Nice to Haves

• Experience with blockchain indexing services (e.g., The Graph, Goldsky).
• Familiarity with intent‑centric architectures, solvers, or off‑chain order matching.
• Direct experience with cross‑chain message passing or oracles (e.g., Wormhole).
• Knowledge of Infrastructure as Code (Terraform) and cloud‑native deployments (K8s, AWS/GCP).

Benefits & Perks

• Equity participation from Day 1.
• 30 days of Paid Time Off (PTO).
• Annual team offsites (previous locations: Thailand, Vietnam, Morocco).
• Remote setup grant of €1,000 for home office or coworking space, plus choice of high‑end work equipment.
• Annual €1,000 personal development budget (after 6 months).
• Fully remote work within EMEA with flexible working hours.
• Culture of “fail forward”, bold decision making and accountability.

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

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