Backend Software Engineer (Node.js)

TL;DR

Backend Software Engineer (Node.js): Designing and building backend services and AI-driven workflows to streamline crypto compliance tools with an accent on TypeScript, event-driven architecture, and database optimization. Focus on integrating LLM frameworks, building scalable APIs, and ensuring high system reliability for complex blockchain data processing.

Location: Must be based in London, UK (Hybrid)

Company

hirify.global develops AI-powered tools that help compliance teams investigate crypto transactions and enhance digital asset risk management.

What you will do

• Design, build, and maintain backend services and event-driven systems using TypeScript and Node.js.
• Develop APIs and workflows that integrate AI and LLM frameworks to power innovative intelligent features.
• Design, optimize, and query data models across relational (PostgreSQL) and NoSQL databases.
• Collaborate with cross-functional teams including product managers and web engineers to deliver features from concept to production.
• Participate in technical design reviews and code reviews to ensure high system quality.
• Contribute to infrastructure and observability practices to ensure stable service operation in production.

Requirements

• 3–6 years of backend engineering experience using TypeScript and Node.js.
• Proven ability to design, build, and maintain robust, well-documented APIs.
• Hands-on experience with AWS services (e.g., Lambda, ECS, S3) in production environments.
• Proficiency in SQL databases and familiarity with NoSQL solutions.
• Methodical approach to system design, architecture, and technical trade-offs.
• Excellent communication and collaboration skills working with diverse teams.

Nice to have

• Familiarity with LangChain or other LLM/AI frameworks.
• Experience with Terraform, Kubernetes, or other infrastructure-as-code tools.
• Experience with observability platforms like Datadog.
• Familiarity with distributed or event-driven architectures.
• Interest in cryptocurrency, blockchain, or compliance domains.

Culture & Benefits

• Hybrid working model with the flexibility to work from anywhere for up to 90 days per year.
• £500 remote working setup budget and $1,000 annual learning and development budget.
• 25 days annual leave plus bank holidays and an extra day for your birthday.
• Enhanced parental leave: 16 weeks fully-paid leave for all eligible employees.
• Private health insurance through Vitality and access to Spill mental health support.
• Life assurance cover at 4 times your salary.