Senior/Staff Backend & Platform Engineer - FinOps, IAM & Blockchain (Remote)

Location: US or Canada (Remote)

Compensation: Up to $200K Base + Equity + Token Participation

Stack: Mobile Development via Flutter or React Native

TLDR

• Our client is building one of the fastest-growing consumer crypto platforms, combining a seamless user experience with sophisticated infrastructure that powers trading, asset movement, and on-chain activity at scale.
• The company has achieved exceptional early traction, surpassing one million users and generating significant revenue growth within a short period of time, demonstrating strong product-market fit in a rapidly expanding market.
• Engineers own mission-critical systems spanning authentication, funds movement, ledgering, blockchain infrastructure, and platform reliability—areas where security, correctness, and uptime are essential.
• This role offers broad technical ownership across multiple domains including identity, financial systems, and blockchain infrastructure, making it ideal for engineers who enjoy solving complex platform challenges.
• Candidates will help build the infrastructure foundation of a rapidly scaling consumer trading platform while working alongside a highly technical and execution-focused team.

Requirements

• 5+ years of hands-on backend and platform engineering experience building and operating high-scale production systems in fintech, crypto, trading, payments, or similarly complex environments.
• Mobile development experience with Flutter or React Native.
• Deep expertise in at least one of the following domains, with meaningful implementation ownership: identity and access management, security platforms, financial systems and ledgering, payments infrastructure, or blockchain infrastructure.
• Strong experience designing and operating distributed systems, including datastores, queues, event-driven architectures, streaming systems, and background processing frameworks.
• Proven operational ownership, including on-call participation, incident response, service reliability, observability, and managing systems against defined service-level objectives.
• Demonstrated ability to operate effectively in startup environments, drive cross-functional initiatives, and take ownership of critical systems with minimal oversight.

Bonus Skills

• Experience with Go, Rust, cloud infrastructure, crypto wallets, exchanges, DeFi protocols, or other digital asset platforms.
• Experience building authentication systems, authorization frameworks, session management, key management systems, or other security-critical platform services.
• Experience building financial infrastructure such as payments systems, transaction orchestration, reconciliation platforms, double-entry ledger systems, balancing frameworks, or reporting systems.
• Experience operating blockchain infrastructure, including node management, RPC services, transaction pipelines, execution layers, or on-chain data ingestion.

Responsibilities

• Design and operate identity and access management systems that support authentication, authorization, account security, and key management capabilities.
• Build and scale financial infrastructure responsible for payments orchestration, ledgering, reconciliation, transactional correctness, and risk controls.
• Develop blockchain infrastructure supporting transaction submission, monitoring, node operations, and on-chain data ingestion.
• Establish reliability, observability, and operational standards across critical platform services through monitoring, alerting, incident management, and performance optimization.
• Lead large cross-functional initiatives spanning engineering, security, product, and operations teams.
• Mentor engineers and help elevate engineering standards through architecture reviews, technical leadership, and knowledge sharing.

About

• Our client is building modern financial infrastructure for digital assets, creating a consumer platform that simplifies access to crypto markets while operating at significant scale.
• Senior and Staff Engineers own foundational systems that directly impact platform security, reliability, scalability, and customer trust.
• The ideal candidate has a proven track record building and operating mission-critical backend systems, whether in identity, payments, financial infrastructure, trading systems, or blockchain platforms.
• This is a highly autonomous role with broad ownership across authentication, payments infrastructure, blockchain systems, and platform engineering, offering significant technical influence as the company continues to scale.