Senior Manager, Software Engineering

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.

2026, 2025, 2024, 2023
- Presented by Built In

2025
- Presented by US Fin Tech Awards

2024
- Presented by CNBC

Apex Fintech Solutions is seeking a Senior Manager, Software Engineering to lead our CIAM team of 5-6 senior engineers building the authentication and authorization software that powers Apex's clearing platform. You'll own the development and deployment of critical security infrastructure supporting both internal teams and external clients, creating custom software solutions that integrate with various internal systems and vendor products to provide a unified identity and access management platform for the entire company.

• Lead and develop a team of senior engineers through mentorship and technical guidance
• Drive architectural decisions for IAM services handling millions of requests
• Partner with Product to define roadmap and deliver platform capabilities
• Own production reliability including incident response and post-mortems
• Enable other engineering teams through self-service authorization tools
• Ensure compliance with SOC2, PCI, and financial regulations

• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical discipline (or equivalent work experience) required
• 10+ years prior experience in software development
• 5+ years leading engineering teams
• Deep experience with IAM/CIAM systems (OAuth, SAML, OIDC)
• Track record of building secure, high-performance services
• Experience with cloud platforms and modern Dev Ops practices
• Financial services or regulated environment experience a plus
• Experience reducing operational toil through automation a plus

• Hands‑on expertise in Go, Python, or Java with distributed systems
• Knowledge of OPA, Zanzibar, or policy‑based authorization
• Flexible and open to learning and adopting new technologies and frameworks.
• Capable of diagnosing and fixing complex technical issues effectively.
• Excellent interpersonal and communication skills, capable of working collaboratively across different geographical locations and explaining technical details to non‑technical stakeholders.
• Demonstrated leadership skills with the ability to drive projects, mentor peers, and promote a positive and productive work environment.

• This job operates in a hybrid, office environment 3 days per week.

#engineering #mid-senior #full-time #LI-LN1 #APEX

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

We offer a robust package of employee perks and benefits, including healthcare benefits (medical, dental and vision, EAP), competitive PTO, 401k match, parental leave, and HSA contribution match. We also provide our employees with a paid subscription to the Calm app…