RYZ Labs is a startup studio built in 2021 by three lifelong entrepreneurs. The founders of RYZ have worked at some of the world's largest tech companies and some of the most iconic consumer brands. They have lived and worked in Argentina for many years and have decades of experience in Latam. Passion for the early phases of company creation Attracting the brightest talents to build industry-defining companies in a post-pandemic world Remote and distributed teams throughout the US and Latam Use of cutting-edge technologies in cloud computing Aim to provide diverse product solutions for different industries Plans to build a large number of startups in the upcoming years Our Values and What to Expect Customer First Mentality - every decision we make should be made through the lens of the customer. Bias for Action - urgency is critical, expect that the timeline to get something done is accelerated. Ownership - step up if you see an opportunity to help, even if not your core responsibility. Humility and Respect - be willing to learn, be vulnerable, and treat everyone who interacts with RYZ with respect. Frugality - being frugal and cost-conscious helps us do more with less. Deliver Impact - get things done most efficiently. Raise our Standards - always be looking to improve our processes, our team, and our expectations. The status quo is not good enough and never should be.

Senior Software Engineer

Backend EngineerSoftware EngineerFull TimeRemoteTeam 51-200

Location

United States + 24 more

Posted

41 days ago

Salary

Not specified

KotlinBlockchainWeb3APIDistributed SystemsSQLNo SQLAWSJavaJVMSecurityFintech

Job Description

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Role Description

RYZ Labs is seeking an experienced Senior Software Engineer to join a dynamic technology team in the financial and crypto industries.

Design, develop, and maintain backend services using Kotlin, ensuring scalability, performance, and reliability.
Build and integrate systems for financial and crypto products, including wallets, exchanges, payment platforms, and blockchain-based services.
Collaborate with product managers, designers, and engineers to define and deliver robust technical solutions.
Participate in architectural decisions, code reviews, and continuous improvement of engineering practices.
Ensure security, data integrity, and system resilience in highly sensitive financial environments.

Qualifications

5+ years of experience as a Software Engineer.
Solid experience with Kotlin for backend development.
Previous experience in crypto, blockchain, fintech, or financial systems.
Strong understanding of backend architecture, APIs, and distributed systems.
Experience working with databases (SQL and/or NoSQL).
Familiarity with cloud environments and modern deployment practices.

Requirements

Experience with blockchain protocols, Web3 ecosystems, or smart contracts.
Strong knowledge of security best practices in financial or crypto platforms.
Background in fast-paced startup or scale-up environments.
Experience with Java or JVM-based ecosystems.

Company Description

RYZ Labs is a startup studio founded in 2021 by two lifelong entrepreneurs. The founders have worked at some of the world’s largest tech companies and most iconic consumer brands, and bring decades of experience across the US and Latam markets. Their shared passion lies in the early stages of company creation and in attracting top-tier talent to build industry-defining companies in a post-pandemic world.

Our teams are remote and distributed throughout the US and Latam, leveraging cutting-edge cloud technologies to build scalable and resilient applications.
We provide diverse product solutions across industries and plan to launch a large number of startups in the coming years.
At RYZ, engineers work with high autonomy and ownership, participating in every step of the development lifecycle.
We foster an environment focused on learning, growth, and tackling challenging, high-impact projects alongside talented professionals.

Customer First Mentality – Every decision is made through the lens of the customer.
Bias for Action – Urgency matters; timelines move fast.
Ownership – Step up when you see an opportunity, even beyond your core role.
Humility & Respect – Be open to learning, vulnerability, and collaboration.
Frugality – Do more with less through smart, efficient solutions.
Deliver Impact – Focus on execution and meaningful outcomes.
Raise Our Standards – Continuous improvement is part of our DNA.