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Senior Software Engineer, Party & Account Services

Office - NYC💼 Full-time💰 $155,000–$155,000🗓 2026-07-05 → 2026-07-31

Core

Design, build, and scale core backend systems for brokerage account operations, including onboarding, KYC, compliance workflows, and account lifecycle management for global institutional partners.

Role type

Senior IC Java backend engineer (fintech)

Builds

Production-grade Java services and event-driven workflows for the Party & Account System (PAS)

Domain

Financial technology / Brokerage infrastructure

Deliverable

production ML models | product features | infrastructure

Required skills

Java (Spring Boot 3), DynamoDB, Kafka, REST API design, AWS (EKS, S3, SQS), Redis, distributed systems design, system testing (JUnit 5, Mockito)

Preferred skills

Brokerage/fintech domain knowledge, tax reporting (W-8/W-9), clearing integrations (FIS, DTCC, InteliClear), LLMs/Agents

Technologies

Java, Spring Boot 3, DynamoDB, Kafka, AWS, Redis, Postgres, EKS, JUnit 5, Mockito

Responsibilities

Ensure Tier-1 API availability and meet SLA requirements; Design and deliver backend Java services for the Party & Account System; Lead technical design and implementation of new account types; Build and maintain REST services and Kafka-driven asynchronous processors; Own integrations with downstream clearing and reporting systems; Partner cross-functionally to translate regulatory requirements into system behavior; Monitor production systems and diagnose latency, throughput, and consistency issues

Seniority

Senior, hands-on IC

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