Senior Blockchain Infra Engineer: Low-Latency RPC & Builder

NodeReal; Singapore; On-site; SGD 150,000 - 210,000; Full time

Benefits offered by this job

Competitive compensation

Flexible working arrangements

Ownership of core infra

Job summary

NodeReal is seeking a Senior Blockchain Infrastructure Engineer in Singapore to build and operate MegaNode and BSC Builder, high-performance RPC and MEV-enabled platforms. You will work on low-latency transaction processing, block construction, and multi-region deployment, interfacing with protocol, DevOps, and QA teams.

The role requires 4+ years in backend or blockchain engineering, strong Go skills, and experience with EVM internals and distributed systems.

Qualifications

• 4+ years of backend, infrastructure, distributed-systems, or blockchain engineering experience.
• Strong proficiency in Go. Solid experience with Rust, C++, or Java is a plus.
• Strong understanding of concurrent programming, distributed systems, Linux, networking, and production debugging.
• Hands-on experience with EVM-compatible blockchains, including transactions, mempools, EVM execution, JSON-RPC, and full-node operations.
• Familiarity with blockchain client internals such as go-ethereum, BSC, Reth, or comparable node implementations.
• Experience designing and operating high-availability, low-latency services in production.
• Strong ownership mindset: able to investigate ambiguous issues, identify root causes, and deliver robust fixes independently.
• Comfortable collaborating across engineering, QA, and operations in a fast-moving environment.

Responsibilities

• Develop and optimize BSC Builder capabilities: ingest transactions/bundles, build blocks, submit bids, manage payments, and integrate with validators.
• Improve backrun and block-construction performance through pathfinding, parallel transaction optimization, EVM simulation, and execution deduplication.
• Build systems for bid, transaction, bundle, and backrun tracking; improve observability and storage efficiency of the builder pipeline.
• Implement and maintain BSC protocol and hardfork upgrades in Builder and MegaNode, including client/API compatibility and downstream-service adaptation.
• Develop MegaNode components for high-throughput RPC, block/state-diff collection, trace/debug APIs, and lightweight-node infrastructure.
• Diagnose and resolve production issues involving Kafka message ordering, node/block-tree stalls, RPC panics, long-tail EVM simulations, and multi-region releases.
• Improve reliability, latency, capacity, monitoring, and incident-response processes for critical RPC and builder services.
• Work closely with protocol, DevOps, and QA teams to design, test, release, and operate production-grade infrastructure.

Skills

Go

Distributed systems

Linux

C++

Rust

Kubernetes

Kafka

JSON-RPC

Tools

Kubernetes

Kafka

Prometheus

S3/object storage

Git

Job description

NodeReal is seeking a Senior Blockchain Infrastructure Engineer in Singapore to build and operate MegaNode and BSC Builder, high-performance RPC and MEV-enabled platforms. You will work on low-latency transaction processing, block construction, and multi-region deployment, interfacing with protocol, DevOps, and QA teams.

The role requires 4+ years in backend or blockchain engineering, strong Go skills, and experience with EVM internals and distributed systems.