Senior Backend Engineer - Cross-Chain Solver (Remote - EMEA)

Jobgether; United Kingdom; Remote; GBP 87,000 - 131,000; Full time

Job summary

A technology-driven hiring platform is seeking a Senior Backend Engineer to design and develop core infrastructure for cross-chain transactions. The role entails building high-performance systems and collaborating closely with multiple teams. The ideal candidate has over 5 years of backend development experience and is proficient in TypeScript and NestJS. This fully remote position offers a competitive salary and numerous benefits.

Benefits

Base salary €100K - €150K

Equity participation

30 days of PTO

Annual personal development budget of €1,000

Choice of work equipment

Qualifications

• 5+ years of backend development experience in high-throughput systems.
• Strong proficiency in TypeScript and frameworks like NestJS.
• Solid background in data structures, algorithms, and statistical analysis.
• Deep understanding of blockchain architecture and transaction execution.

Responsibilities

• Design, implement, and maintain a high-performance cross-chain solver.
• Develop pricing, routing, and liquidity management algorithms.
• Collaborate with smart contract and front-end teams.

Skills

TypeScript

NestJS

Data structures

Algorithms

Statistical analysis

Monitoring tools

Caching solutions

System design

Autonomy

Problem-solving

Job description

Overview

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Backend Engineer - Cross-Chain Solver in EMEA.

As a Senior Backend Engineer, you will design and develop the core infrastructure enabling fast, reliable, and cost-efficient cross-chain transactions. You will build high-performance systems that manage liquidity, execute transactions across multiple blockchain networks, and solve critical challenges in cross-chain interoperability. This role involves close collaboration with smart contract developers, data scientists, and engineering teams to optimize algorithms, improve system reliability, and ensure scalability. You will thrive in a fully remote, fast-paced environment with autonomy, the opportunity to mentor peers, and direct impact on innovative blockchain products used across multiple chains.

Accountabilities

• Design, implement, and maintain a high-performance cross-chain solver for multiple blockchain networks.
• Develop pricing, routing, and liquidity management algorithms to optimize transaction throughput and capital efficiency.
• Build robust monitoring, alerting, and testing frameworks to ensure system reliability and security.
• Collaborate with smart contract and front-end teams for seamless integration with on-chain protocols.
• Maintain high coding standards, conduct code reviews, and ensure best practices for performance, maintainability, and security.
• Optimize transaction execution logic balancing bid frequency, win rate, and system efficiency.
• Act as a technical mentor and provide guidance on backend and algorithmic challenges.

Requirements

• 5+ years of backend development experience, ideally in high-throughput systems.
• Strong proficiency in TypeScript and frameworks like NestJS.
• Solid background in data structures, algorithms, and statistical analysis.
• Deep understanding of blockchain architecture, mempool dynamics, and transaction execution.
• Experience with monitoring, observability tools, and caching solutions (e.g., Redis).
• Strong system design and architecture skills with the ability to think at a high level.
• Autonomy, problem-solving mindset, and ability to navigate ambiguity in a fast-paced environment.
• Excellent communication skills and ability to provide and receive constructive feedback.

Nice to Haves

• Proficiency in Rust.
• Experience building cross-chain solvers or similar trading systems.
• Familiarity with cross-chain bridges, DEXs, or different blockchain VMs (EVM, SVM, Move).

Benefits

• Base salary €100K - €150K with equity participation from day one.
• Fully remote work with flexible hours.
• 30 days of PTO and annual team offsites.
• Choice of work equipment and optional coworking/office setup support.
• Annual personal development budget of €1,000 (pro-rated first year).
• Collaborative, inclusive, and innovative team culture with opportunities for mentorship and growth.

Jobgether AI Matching Process

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

When you apply, your profile goes through our AI-powered screening process designed to identify top talent efficiently and fairly. Our AI thoroughly analyzes your CV and LinkedIn profile, focusing on your skills, experience, and achievements. It then compares your profile to the job's key requirements and past success factors to calculate your match score. The top three candidates with the highest match scores are automatically shortlisted for the role. When necessary, our human team performs an additional review to ensure no outstanding profile is overlooked.

This process is transparent, skills-based, and bias-free, emphasizing your professional fit and potential. Once the shortlist is finalized, it is shared directly with the hiring company, which then conducts interviews or additional assessments.

Thank you for your interest!

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