cover image
Integration International Inc.

Java Developer – Electronic Trading Platform

Hybrid

New york, United states

$ 105 /hour

Freelance

10-10-2025

Share this job:

Skills

Java JavaScript Kotlin TypeScript SQL PostgreSQL GitLab CI/CD DevOps Docker Kubernetes Jenkins Test Selenium Test Automation Scrum Programming git Azure AWS Postman Agile SDLC Junit Spring HTML5 Spring Boot Maven Gradle Gitlab CI Kafka Microservices

Job Specifications

Job Description:

Preferred Experience:

* Prior experience working on Genesis Global implementations for trading, risk, or post-trade applications.

* Exposure to low code / hybrid architectures combining Genesis with Java microservices.

* Hands-on experience integrating with broker or exchange FIX gateways.

* Experience with performance tuning and memory optimization for low-latency trading systems.

* Understanding of compliance, audit logging, and entitlement management in trading environments.

* Experience with cloud deployments (AWS / Azure) and containerized microservices.

Your project involves:

* Genesis Global Low-Code Platform -- back-end + orchestration + event-driven UI layer.

* Java / Kotlin microservices -- core trading logic and APIs.

* Microsoft FAST -- front-end web-component framework for building modern, modular UIs.

* FIX connectivity -- order/execution messaging.

* Test automation -- end-to-end validation of UI and trading workflows.

Skills/Tools/Frameworks:

Core Programming: Java (8/11/17+), Kotlin (preferred), Spring Boot / Micronaut, Multithreading, Concurrency, REST APIs.
Genesis Global Platform: Experience developing applications using the Genesis Application Platform (GAP) - GPAL scripting, Data Server, Event Handler, UI Integration, Genesis Marketplace components.
FIX Protocol Development: Experience with FIX 4.x / 5.x message types, FIX Engines (QuickFIX/J, QuickFIX/N, Connamara, or Genesis FIX adapters), order management.
workflows, execution reports, and trade capture.
Web / UI Development: Proficiency with Microsoft FAST, TypeScript / JavaScript, HTML5, CSS3, Web Components, and responsive design principles.
Test Automation: Genesis testing frameworks, Selenium, Cypress, JUnit/TestNG, Postman / Newman, Cucumber (BDD).
Cloud / DevOps Tools: Docker, Kubernetes, Jenkins / GitLab CI, Git, Maven / Gradle, SonarQube.
Data & Messaging: Kafka, RabbitMQ, RESTful APIs, JSON, SQL (PostgreSQL / Oracle), and real-time data streaming.
Capital Markets Knowledge: Equities, Fixed Income, FX, or Derivatives workflows; understanding of order types, trade lifecycle, and market data handling.
Methodologies: Agile / Scrum, TDD / BDD, CI/CD automation, Secure SDLC.

About the Company

Integration International is an AI Change Catalyst and Digital Transformation Solutions organization and a one-stop hub for end-to-end touchpoints of the business life cycle. We believe in providing pioneering solutions to the enterprise of today and tomorrow, through a synergy of AI capabilities and human ingenuity, ensuring that our solutions serve business needs optimally while maintaining integrity with global ethical standards. With a team of highly skilled professionals and a comprehensive network of resources, we have... Know more