Senior Fullstack Developer (Java + Angular)

About HireSix

At HireSix, we go beyond basic recruitment. Our experienced team combines deep HR knowledge with precision-driven hiring practices to deliver top-tier tech talent that truly fits your company culture and goals. From the first interview to long-term retention, we handle the entire process with care, clarity, and full transparency.

The project

Our client is a fast-growing fintech software company operating a proprietary trading platform. The platform provides:

• Trading evaluations for aspiring traders;
• Funded accounts to back retail traders;
• Advanced analytics and execution tools for real-time trading.

The system is already in production, now the team is adding major new features and squashing bugs to deliver the next generation of trading capabilities.

What you’ll do

• Design & implement new backend features using Spring Boot 2.x;
• Develop & maintain Angular 13+ front-end modules;
• Build real-time functionality with WebSockets and message brokers;
• Troubleshoot production issues, ensuring high availability and quick resolutions;
• Optimize PostgreSQL schemas, queries and indices for performance and scalability;
• Collaborate with product managers, QA engineers, and DevOps to deliver end-to-end solutions;
• Write clean, testable, documented code, and participate in code reviews.

Must-have qualifications

• 5+ years professional experience with Java (Spring Boot 2.x);
• 3+ years with Angular 13+ (or comparable modern Angular versions);
• Deep proficiency in PostgreSQL at production scale;
• Proven experience building real-time systems (WebSockets, event streams, etc.);
• Track record of maintaining high availability and responsiveness under pressure;
• Able to own features from design through deployment.

Nice to have

• Prior work on proprietary trading platforms or at prop trading firms;
• Integration experience with broker APIs (e.g. cTrader, MetaTrader, DXTrade);
• Familiarity with containerization (Docker/Kubernetes) and cloud deployments.

What we offer

• Full-time remote role with flexible hours;
• B2B contract;
• 20 days paid vacation + 10 days sick leave per year;
• A small, high-performance, collaborative team where your impact is immediate.

Hiring process

Recruiter screening — Technical assignment — Technical interview — Offer