Software Engineer II (Full Stack)

WHO WE ARE

Apex Fintech Solutions (Apex) powers innovation and the future of digital wealth management by building tech-forward solutions that help simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech software enables us to support clients such as Stash, Betterment, SoFi, Webull, and eToro, amongst many others; collectively, Apex powers access to the stock market for over 22+ million end customers.  

 At Apex, we are changing how the securities industry operates by reinventing the status quo, which was manual, slow, and accessible only by the ultra-wealthy. We're digitizing and democratizing systems so that everyone has an opportunity to invest. 

When you're at Apex, you drive this change. You're part of a global team with a clear vision: to be the trusted technology that powers the digital economy. Our offices in Austin, Dallas, Chicago, New York, Portland, Belfast, and Manila are home to over 1,000 employees. 

Together, we’re shaping the future of financial innovation. Embrace change. Solve big. Win together. And be G.R.E.A.T. — grit, results, empathy, accountability, and teamwork — with Apex. 

We’re proud to be recognized for the innovative work we do, the purpose-driven nature of our work, and the collaborative culture we’ve created. Here are just a few of the many awards we’ve recently received: 

Best Places to Work 

2026, 2025, 2024, 2023 - Presented by BuiltIn 

WealthTech of the Year 

2025 - Presented by US FinTech Awards 

The World’s Top 250 Fintech Companies 

2024 - Presented by CNBC 

ABOUT THIS ROLE

Apex is seeking a Full Stack Software Engineer II to join our dynamic team in the tech sector of our financial services and trading business. This role is geared towards a mid-level professional eager to deploy innovative solutions and explore fresh ideas, contributing to various strategic company initiatives. You will work alongside some of the industry’s most adept professionals to address unique challenges in our ever-evolving market. The position offers abundant opportunities for career development through complex projects involving a multitude of technologies and programming frameworks. 

Key Responsibilities: 

• Build sweet UIs – and the frameworks that drive them – on top of APIs designed in collaboration with domain product teams. 

• Think through hard problems and solve them at all layers of the enterprise 

• Write self-documenting and well-tested code with an emphasis on sustainable development practices 

• Work as part of a small, productive development team that cares most about delivering value to the business while emphasizing code quality, peer reviews and strong engineering practices 

• Full Lifecycle Software Engineering: Participate in all phases of the software development lifecycle, from design through development, testing, deployment, and maintenance. 

• Quality Assurance and Standards: Write high-quality, well-tested code and maintain strict coding standards through regular code reviews, mentoring, and coaching within your team. 

• Project Management: Effectively manage project priorities, deadlines, and deliverables using your extensive technical expertise. 

• Continuous Learning: Engage in ongoing training to deepen your understanding of options trading, financial markets, and the technologies that drive these sectors such as RDBMS, Kubernetes, Docker, and Google Cloud Platform. 

Education and Experience: 

• Bachelor's or Master’s degree in Computer Science, Software Engineering, Electrical Engineering, Computer Engineering, or a related technical discipline.  

• 3-5 years in software development within a technology-driven organization. Experience in financial services is a plus but not required.