Job Openings ＞ Job Description

资深 SRE 工程师

Location

• Hangzhou

About imToken

imToken is a blockchain technology company backed by Series B funding and headquartered in Singapore, with offices across 3 countries and regions. We are committed to building the most secure, user-friendly digital wallet, enabling everyone to enjoy a meaningful digital life with freedom and equality.

Since our founding in 2016, imToken has provided trusted, non-custodial wallet services to millions of users in over 150 countries and regions. We help users manage digital assets, identities, and data across major blockchains such as Bitcoin, Ethereum, and TRON. imToken also supports hardware wallets, decentralized token swaps, and DApp browsing, and has launched the imToken Card. Through imToken Labs, we continue to explore cutting-edge blockchain technologies to drive innovation and global growth.

Just as the value of a blockchain lies in its connected nodes, we value self-driven, fast-learning team players. At imToken, we welcome every individual to bring their unique talent to the team and help shape the future of blockchain.

About the role

We’re looking for a reliable and skilled Site Reliability Engineer (SRE) to join our Infrastructure Team. You will help build a stable, efficient, and scalable runtime platform to support the ongoing evolution of our core products, including the imToken wallet.

As an SRE at imToken, you’ll focus on system availability, performance, security, and observability. You'll leverage automation to reduce manual intervention, increase deployment efficiency, and improve operational resilience. Every optimization and improvement you make will have a direct impact on user experience and the stability of our products—laying the technical foundation for business growth.

You’ll work closely with engineering, operations, and security teams to drive architecture improvements, standardize processes, and solve challenges around system stability and scalability—helping us build a more reliable global infrastructure.

What you'll be doing

• Deploy, maintain, and monitor blockchain infrastructure components

• Build, maintain, and improve observability systems (monitoring, logging, alerting) to detect and respond to anomalies

• Enhance deployment efficiency and recovery through automation tools and workflows (e.g., CI/CD, Infrastructure as Code)

• Drive performance tuning, security hardening, and capacity planning; contribute to architecture evolution and service governance

• Collaborate with engineering and product teams in design reviews and release processes, ensuring operational readiness and stability

• Maintain system documentation and incident reports; lead post-mortem analysis and drive continuous improvements

What we look for in you

• Solid computer science fundamentals, proficient in Linux, networking protocols, and system performance tuning

• Hands-on experience with cloud platforms (e.g., AWS, GCP, Alibaba Cloud) and container technologies (Docker, Kubernetes)

• Familiar with monitoring/logging/alerting tools (e.g., Prometheus, Grafana, ELK, Alertmanager), and skilled in incident response

• Experience with microservice architecture and service mesh technologies (e.g., Istio) for traffic control, observability, and security

• Experience managing messaging systems (e.g., Kafka) in high-availability environments

• Self-motivated and eager to learn, with an eye on emerging technologies and trends

• Strong sense of ownership, with excellent problem-solving and analytical skills

What are nice to have

• Active in the tech community, with open-source contributions on GitHub or blog posts sharing technical insights

• Hands-on experience with blockchain infrastructure (e.g., Ethereum node management, wallet backend services, transaction broadcasting)

• Prior experience leading SRE/DevOps initiatives or managing team-based infrastructure projects