1 day ago
Base Salary
$134k - $228k/yr
Responsibilities
- Develop and maintain BFT consensus, block production, finality, state storage, snapshotting, and state recovery.
- Implement cryptographic signing, Merkle-committed state, threshold and shard-based key handling, and hardware-backed custody integrations.
- Build the expression language, compiler, bytecode VM, parser, type checker, interpreter, and programmable transfer and access rules.
- Design and support gRPC services, REST gateways, CLI tools, and multi-language client SDKs.
- Stream ledger data into ClickHouse and Postgres for queries, explorers, and reporting, with Prometheus metrics and tracing.
- Create deterministic simulation, fault-injection, property-based testing, fuzzing, and formal model-checking systems for distributed-code correctness.
- Operate production systems using Docker, Kubernetes, Helm, metrics, traces, and root-cause incident analysis.
- Write technical designs and documentation for internal teams and bank engineering customers.
Requirements
- Six or more years of professional backend or systems engineering experience, including at least three years writing production Rust.
- Deep practical async Rust experience with tokio, futures, traits, generics, lifetimes, Send, and Sync.
- Hands-on experience with blockchain or distributed-ledger internals, including consensus, transaction validation, state commitments, storage, or node networking.
- Applied understanding of digital signatures, hashing, key derivation, key custody, and system trust boundaries.
- Experience designing and evolving service APIs, ideally gRPC and Protocol Buffers, with backward compatibility for versioned clients.
- Experience operating production systems with Docker, Kubernetes, Helm, metrics, tracing, and incident debugging.
- Experience testing concurrent and distributed code through unit, integration, simulation-level, property-based, or timing-sensitive testing.
- Clear technical writing skills.
- Preferred experience with digital currencies, tokenized deposits, payments, core banking systems, or ISO 20022.
- Preferred experience with trusted execution environments, Intel SGX, AWS Nitro Enclaves, vsock, HSMs, or PKCS#11.
- Preferred language, compiler, or virtual-machine implementation experience.
- Preferred experience with ClickHouse, Kafka, sqlx, Postgres, TypeScript, Python, or Go.
- Public contributions to Rust or distributed-ledger open-source projects are a plus.
Benefits
- Full-time employment with a stated base pay range of $133,980.00-$227,770.00 annually.
- New York City-area location preference, with remote flexibility for candidates able to work Eastern Time hours.
- Travel to New York may be required for customer sessions, planning, and key team meetings.
- Equal opportunity employment and a commitment to diversity.
- US-based conditional offers require a drug test.
Tech Stack
ActixApache KafkaAWSClickHouseDockerGitHub ActionsGogRPCHelmKubernetesPostgreSQLPrometheusPythonRustTypeScript
Categories
About FIS
FIS builds financial technology for banks, merchants, and capital-markets firms, including core banking platforms, payment processing, fraud/risk tools, and investment/treasury systems. It sells enterprise software, cloud services, and outsourced processing via long-term contracts and transaction-based fees. Founded in 1968 and headquartered in Jacksonville, Florida, FIS is a Fortune 500 public company trading on the NYSE (FIS) with customers worldwide.