Full Stack Developer

mthree•Jersey City, NJ

7d•$140,000 - $170,000•Onsite

About The Position

Our client is seeking a highly motivated Full‑Stack Developer to help build and enhance next‑generation platforms supporting global post‑trade operations. You will contribute to the design, development, and modernization of systems that process corporate actions, income events, entitlements, and client reporting across multiple markets. This role is ideal for an engineer with over 5 years of experience who enjoys solving complex problems, working in a fast‑paced environment, and delivering resilient, scalable solutions used across the firm. About mthree: Since 2010, mthree has been helping clients solve their business and technological challenges. We are a technology and business consultancy with a global workforce delivering significant business and IT projects in some of the largest financial services organizations worldwide. Core Services: Consulting and Advisory Managed Services Alumni Graduate Program Alumni Pro Program We have a global presence and are experts in delivering exceptional quality to our client base, providing consulting services across Risk, Regulation & Compliance; Vendor Products; Application Support; Application Development; Cyber & Information Security; Data Science and DevOps areas. Our Expert program offers experienced professionals access to top roles in tech, finance, aviation and insurance. Join us to work on groundbreaking technology projects, from international trading platforms to critical applications for leading airlines. We recruit professionals who are eager to fast-track their careers in technology or operations within prestigious global organizations.

Requirements

Strong Java backend skills (API design, concurrency basics, testing) plus solid React/TypeScript fundamentals (state management, performance, component design)
Messaging platforms like RMQ, Kafka , FX or Dervis Trade lifecycle domain functional knowledge
Experience with distributed systems patterns: async messaging, retries/idempotency, schema/versioning, and safe rollouts.
Working knowledge of SDLC in controlled environments (secure coding, least privilege, auditability, operational readiness).
Years of experience and seniority expectations - 5+ years
Hands-on with Cassandra data modeling and performance tuning; Kafka stream processing or exactly-once/at-least-once semantics familiarity.
Applied AI experience (LLM/RAG integrations, prompt/tooling patterns, evaluation/guardrails) in production applications.
Observability and reliability depth (SLOs, alerting hygiene, incident response, postmortems).
Frontend & AI: React + TypeScript; AI integrations (LLM APIs/SDKs, vector search/RAG where relevant), CI/CD + Git, and logging/metrics/tracing tools.
Demonstrated proficiency in software applications and technical processes within a technical discipline (e.g., cloud, artificial intelligence, machine learning, mobile, etc.)
Applicants must be currently authorized to work in the United States on a full-time basis. The Company will not sponsor applicants for work visas.

Responsibilities

Design, develop, and maintain microservices and distributed systems using Java, Spring Boot, and related frameworks.
Deliver full-stack features end-to-end (React UI → Java services → data), including testing, release, and production support.
Build reliable, scalable APIs and event-driven workflows; contribute to code reviews and shared engineering standards.
Troubleshoot issues using logs/metrics/traces and drive root-cause fixes and incremental improvements.
Develops secure and high-quality production code, and reviews and debugs code written by others
Hands-on practical experience delivering system design, application development, testing, and operational stability
Advanced understanding of agile methodologies such as CI/CD, Application Resiliency, and Security, Proficiency in automation and continuous delivery methods