Senior Software Engineer

Next Ventures; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Next Ventures in New York City is seeking a Senior Backend Engineer to design and build scalable backend services in a cloud-native environment, focusing on transaction processing and asset management workflows.

You will work across teams supporting trading, lending, settlement, and infrastructure, contributing to high-throughput, low-latency systems with a strong emphasis on security and reliability. This role requires ownership and collaboration across disciplines.

Qualifications

• 7+ years of professional software engineering experience.
• Strong foundation in computer science fundamentals and system design.
• Proven experience designing and building scalable backend systems.
• Expertise in Java, Scala, Kotlin, C#, or similar (Java preferred).
• Deep understanding of object-oriented programming principles.
• Experience working across the full development lifecycle, including agile environments and production systems.
• Strong communication skills and a collaborative mindset.
• Attention to detail and a strong sense of ownership over system quality and performance.

Responsibilities

• Design and architect scalable backend services on a cloud-native platform, focusing on automation, reliability, and security.
• Build and enhance systems responsible for transaction processing and asset inventory management.
• Develop and maintain staking and workflow management systems for digital assets.
• Collaborate cross-functionally with teams supporting trading, lending, settlement, frontend applications, and infrastructure.
• Contribute to system design decisions and help shape architecture for high-throughput, low-latency environments.
• Participate in the full software development lifecycle, from design through deployment and production support.

Skills

7+ years experience

CS fundamentals

System design

Backend scalability

Java

OO principles

Agile development

Production systems

Tools

Docker

Kubernetes

Kafka

RabbitMQ

AWS

GCP

Azure

Job description

Senior Backend Engineer

Location:New York, NY

Overview

We are a technology-driven organization operating at the intersection offinancial services and digital assets, building infrastructure that supports institutional-grade platforms. Our team focuses on developing secure, scalable systems that power the management, movement, and growth of both fiat and digital assets.

We are looking for aSenior Backend Engineerto join a New York-based engineering team responsible for building and maintaining systems that support custody, staking, and asset management workflows within a high-performance, cloud-native environment.

What You’ll Do

• Design and architect scalable backend services on acloud-native platform, with a focus on automation, reliability, and security
• Build and enhance systems responsible fortransaction processing and asset inventory management
• Develop and maintainstaking and workflow management systemsfor digital assets
• Collaborate cross-functionally with teams supporting trading, lending, settlement, frontend applications, and infrastructure
• Contribute to system design decisions and help shape architecture for high-throughput, low-latency environments
• Participate in the full software development lifecycle, from design through deployment and production support

What We’re Looking For

• 7+ yearsof professional software engineering experience
• Strong foundation incomputer science fundamentalsand system design
• Proven experience designing and building scalable backend systems
• Expertise in one or more of the following:Java, Scala, Kotlin, C#, or similar(Java preferred)
• Deep understanding ofobject-oriented programming principles
• Experience working across the full development lifecycle, including agile environments and production systems
• Strong communication skills and a collaborative mindset
• Attention to detail and a strong sense of ownership over system quality and performance

Nice to Have

• Experience withmessaging systems(e.g., Kafka, RabbitMQ)
• Familiarity withcontainerization technologies(Docker, Kubernetes)
• Experience withcloud platforms(AWS, Azure, or GCP)
• Background infinancial services, fintech, or digital assets
• Understanding ofasynchronous or reactive programming models
• Familiarity withevent-driven architecturesand domain-driven design
• Knowledge ofconcurrency and multi-threading concepts, particularly in Java

Work Environment

• Based inNew York City
• Collaborative, fast-paced environment focused on building high-impact financial technology systems