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Senior Staff Fullstack Engineer at Control | Argentina

On-site Full-time

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Experience Level

Senior

Qualifications

Qualifications:Proven experience in backend development with a strong grasp of APIs and microservices. Proficiency in PostgreSQL and database schema design. Experience with blockchain technologies including EVM chains, Solana, Bitcoin, and Cosmos. Strong understanding of asynchronous programming and job processing. Excellent problem-solving skills and the ability to work in a collaborative environment. Strong communication skills to articulate technical concepts to non-technical stakeholders.

About the job

WHY CONTROL EXISTS

Most crypto wallets are designed for traders, but Control takes a different approach.

Control is a private custody platform for digital wealth—crafted for families and individuals who prioritize legacy over market trends. We are establishing the infrastructure for people to safeguard their digital heritage: multi-chain assets that are secure, organized, and accessible for generations.

This is not just another DeFi dashboard or exchange tool. This is digital wealth custody, where trust, reliability, and craftsmanship are measured in decades, not mere sprints.

THE ROLE

We are seeking a Staff Full-Stack Engineer to be a key architect in the development of Control v2. You will collaborate closely with the CTO, focusing mainly on backend development—designing and creating the APIs, services, and data systems that drive wallet operations, transaction signing, asset custody, and portfolio management. You will also engage with frontend tasks as required to ensure seamless integration and timely delivery.

This role emphasizes ownership over mere task completion. Your architectural decisions will shape the platform for years to come, and the code you write will protect real assets. You will work in a compact team where your judgment profoundly influences product quality.

We are rebuilding Control from the ground up. The v1 platform validated the market, and now we are creating v2 as a greenfield project with new architecture, stack, and standards. This is a unique engineering opportunity: a product with actual users and market validation, combined with the technical freedom of a blank canvas.

WHAT YOU WILL DO

Design and develop backend APIs and services that enable wallet management, transaction signing, asset tracking, and portfolio operations across various blockchains.

Take ownership of PostgreSQL schema design—modeling financial and blockchain data with the foresight required for long-term custody. Implement safe, type-aware migrations.

Develop and maintain blockchain interaction layers for EVM chains, Solana, Bitcoin, Cosmos, and future networks.

Create webhook handlers, background jobs, and asynchronous workflows for transaction monitoring, balance updates, and wallet lifecycle management.

About Control Software

About Control:Control is redefining digital wealth management through a dedicated custody platform that prioritizes security and accessibility. Our mission is to empower families and individuals to manage their digital assets responsibly, ensuring their legacies endure for generations.

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