1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience they need to unlock the potential of true crypto ownership. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond.

So if you're someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team.

Location: We prioritise candidates who are based in Dubai then consider those working remotely in one of our European Hub Locations (UK, Spain or Germany).

We're looking for an enterprise-oriented Senior Software Engineer with a focus on structure and scalability. You'll be responsible for developing high-performance, scalable backend systems for our core infrastructure, including services like History, Tokens, Prices, and BFF. This role requires expertise in the Node.js ecosystem, including Nest.js, as well as experience with microservices architecture and various storage and monitoring tools.

You'll need a basic knowledge of blockchain technologies and be comfortable working in a Scrum-based, agile environment. The position is based on a hybrid schedule, with a minimum of three days per week on-site in our Dubai office.

Responsibilities

Designing and implementing scalable microservices and high-performance APIs using Nest.js
Ensuring low latency and high throughput in service architecture
Writing clean, maintainable, and well-documented code while following internal coding standards
Monitoring technical and business metrics and setting up alerting systems for early incident detection
Performing regular profiling and system performance analysis to optimise backend components, including database queries and response times
Participating in code reviews and engaging in architecture discussions and sprint planning sessions
Promoting best engineering practices across the team
Ensuring backend systems are secure, scalable, and resilient
Applying industry best practices for data protection and system design
Proactively identifying and mitigating system vulnerabilities
Staying updated with emerging backend technologies and introducing new tools and practices to enhance team efficiency
Continuously seeking ways to improve system architecture and performance

Requirements

Previous experience working in fintech, DeFi, or crypto projects
Experience with microservices architecture in a high-load environment
Experience setting up and managing metrics pipelines and alerting systems

Skills

Proficient in Node.js/TypeScript with strong SQL skills and PostgreSQL experience
Familiar with Redis, message brokers (e.g. NATS, EMQX, Kafka), and monitoring tools (Prometheus, Grafana)
Good understanding of blockchain fundamentals, Web3, and Solidity
Knowledge of CI/CD pipelines, Docker, and basic Kubernetes concepts
Strong problem-solving abilities, proactive communication, and quality-driven mindset

Nice To Have

Nest.js
Knowledge of event-driven architecture
Knowledge of Web3 libraries (ethers.js, web3.js) for blockchain interactions

Why you'll love working with us

Join a young, creative team in a fast-paced and supportive environment
We're open to new ideas — if you've got a vision, pitch it and make it happen
Enjoy competitive pay that matches your skills and experience
Be part of a company that's shaping the future of DeFi
Take time when you need it — we offer unlimited vacation days
Get fully compensated for your work gear — we'll set you up for success

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Senior Software Engineer, Backend (TypeScript)