Backend Engineer, Cross-Chain Payments (Remote-First)

Jobgether; Ireland; Remote; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Competitive base salary

Equity package

Comprehensive health benefits

Unlimited paid time off

Remote-first environment

High-impact blockchain infrastructure

Job summary

Jobgether is seeking a Backend Engineer, Solving, in Ireland to build and maintain core cross-chain transaction systems. You will design quote-generation, pricing, and settlement pipelines, working primarily with TypeScript and Node.js to deliver reliable, cost-efficient DeFi infrastructure.

You will own end-to-end workflows, integrate with DEXs and liquidity venues, and improve observability and resilience using modern tooling, with remote-first collaboration across teams and a strong emphasis

Qualifications

• Strong backend engineering experience with TypeScript and Node.js, including production-grade services.
• Hands-on experience building systems that interact with on-chain protocols, including querying DEX quotes and swap calldata.
• Solid understanding of DeFi fundamentals: AMMs, liquidity pools, routing, slippage, MEV.
• Design and ownership of multi-stage processing pipelines connecting detection, pricing, execution, and settlement.
• Focus on reliability, observability, and robust error handling in production.

Responsibilities

• Design, build, and improve the core quote-generation and pricing engine with on-chain feeds and dynamic fees.
• Develop integrations with DEXs and aggregators (1inch, LiFi, Uniswap) and handle calldata, multi-hop routing, gas estimation.
• Own end-to-end transaction pipelines from deposit detection to settlement.
• Improve reliability with structured errors, monitoring, and incident triage using Datadog.
• Investigate failures and bottlenecks, addressing reverts, retries, and liquidity constraints.
• Collaborate with protocol teams to integrate new settlement primitives for decentralized liquidity.
• Develop features for payment use cases including stablecoin transactions with fixed pricing.
• Own projects from design to production, ensuring performance and business requirements.
• Contribute to scalable backend architecture and tooling.

Skills

TypeScript

Node.js

DeFi / Blockchain

System design

Observability & reliability

Remote collaboration

Cross-chain

Performance optimization

Tools

Datadog

Redis/BullMQ

Job description

Jobgether is seeking a Backend Engineer, Solving, in Ireland to build and maintain core cross-chain transaction systems. You will design quote-generation, pricing, and settlement pipelines, working primarily with TypeScript and Node.js to deliver reliable, cost-efficient DeFi infrastructure.

You will own end-to-end workflows, integrate with DEXs and liquidity venues, and improve observability and resilience using modern tooling, with remote-first collaboration across teams and a strong emphasis