Staff Blockchain & Payments Infra Engineer (Remote, PT)

Syndesus; United States; On-site; USD 173,000 - 250,000; Full time

Job summary

Syndesus partners with a global fintech to hire a Staff Software Engineer for blockchain and payments infrastructure. This remote US role requires significant Pacific Time overlap and focuses on backend systems that move value at scale.

You will extend in-house blockchain infrastructure, own scalable microservices, and build secure APIs for cross-chain payments and banking integrations. Collaborate with product and engineering on architecture and quality across teams including liquidity,

Qualifications

• 7+ years of professional software development with strong Java expertise
• Technical leadership of teams larger than four engineers on architecture and system design decisions
• Expert-level depth in API design, payments processing, or blockchain
• Strong RESTful API design and development fundamentals
• Experience with cloud platforms (AWS, GCP, or Azure), container orchestration (Kubernetes, EKS, ECS), and SQL schema design
• CS degree or closely related field (or foreign equivalent)
• Web3, blockchain, and smart contract business logic experience is required
• Must be US-based with meaningful Pacific Time availability

Responsibilities

• Extend in-house blockchain systems infrastructure and own scalable microservices with secure, reliable APIs
• Build publicly accessible APIs that enable developers to integrate with complex payment systems and platform services
• Collaborate with product and engineering on architecture, system design, and quality standards across multiple teams (liquidity, developer platform, Web3 services, payments)

Skills

Java

API design

Leadership

RESTful APIs

Cloud platforms

Kubernetes

Education

CS degree

Tools

AWS

GCP

Azure

Kubernetes

EKS

ECS

SQL

Job description

Syndesus partners with a global fintech to hire a Staff Software Engineer for blockchain and payments infrastructure. This remote US role requires significant Pacific Time overlap and focuses on backend systems that move value at scale.

You will extend in-house blockchain infrastructure, own scalable microservices, and build secure APIs for cross-chain payments and banking integrations. Collaborate with product and engineering on architecture and quality across teams including liquidity,