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Über
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
We are looking for a
Principal Software Architect
to lead the design and evolution of a multi-tenant wealth management platform. In this role, you will define platform architecture and technical strategy for systems serving correspondent firms and their end investors. You will focus on scalability, security, and regulatory compliance while working closely with engineering, product, compliance, and customer integration teams to support continued growth.
What We're Looking For We are seeking a senior engineering leader who combines architectural rigor with strong execution and embodies the APEX paradox: structured creativity. You approach system design proactively by identifying edge cases, regulatory constraints, and failure modes early, while still moving ideas into production. You balance exploration with delivery and design systems that are resilient, configurable, and understandable by teams beyond yourself. You believe strong platforms reduce operational risk by design through clear contracts, guardrails, automation, and documentation.
Duties/Responsibilities • Enumerate edge cases, failure modes, and regulatory constraints before building-not after • Design multi-tenant authorization models with strong tenant isolation, thinking adversarially about permission cascading and cross-tenant data leakage • Architect high-volume onboarding, funding, and trading workflows with upfront constraint enumeration • Define the technical strategy for white-label and partner-branded investing experiences across correspondent firms • Architect secure, deterministic systems in Go-based backend services and GraphQL BFF layers • Build auditability, data retention, and compliance guardrails directly into system design-not as afterthoughts • Ensure platform design meets SEC, FINRA, and SOC 2 compliance requirements through configuration, not heroics • Drive Architecture Decision Records to maintain shared context and prevent architectural drift • Communicate architectural decisions clearly to engineering teams, product leadership, and executive stakeholders • Partner with product leadership to align technical solutions with business and investor needs • Support customer integration teams on SSO, API onboarding, and white-label deployments • Translate regulatory and compliance requirements into scalable technical solutions • Mentor engineers on platform security, multi-tenancy, and compliance-aware development • Systematically improve platform architecture based on production patterns and operational data • Evolve authorization, identity federation, and tenant isolation as the platform scales
Education and/or Experience • Bachelor's degree in Computer Science, Engineering, or other technical fields. Advanced degrees are preferred but not required-demonstrated architectural impact matters more • 10+ years of engineering experience with 5+ years in senior architectural leadership roles • Experience building and operating multi-tenant B2B2C platforms at scale (millions of end users) • Expertise in Go backend services, gRPC, and GraphQL BFF architectures • Strong experience with GCP cloud-native services (Cloud Run, GKE, Spanner/BigQuery, Pub/Sub) • Deep familiarity with PostgreSQL and Spanner in high-scale environments • Experience with authentication and identity federation frameworks like Cognito, Auth0, Okta, and SAML SSO • Secure authorization design expertise (e.g., SpiceDB, OPA, or similar relationship-based models) • Working knowledge of SEC and FINRA regulations, particularly how they impact platform architecture • Understanding of SOC 2 compliance requirements and how to encode them into system design • Domain expertise in fintech, wealth management, or broker-dealer platforms
Required Skills/Abilities • Excellent leadership skills, with the ability to inspire and mentor software engineering teams • Proven architectural and engineering expertise: designing scalable, secure, and resilient systems • Strong knowledge of platform compliance, multi-tenancy, and edge-case enumeration • Outstanding ability to balance exploration during discovery with disciplined execution in production systems • Excellent documentation and collaboration skills, with an emphasis on visibility and shared context (ADR discipline) • Strong cross-functional coordination with product, compliance, and customer teams • Solid understanding of Terraform, CI/CD pipeline design, and infrastructure-as-code practices
Preferred Qualifications • Experience with correspondent or clearing firm platforms • Familiarity with trading systems, account management, and funding workflows • Frontend architecture experience with React or Next.js • SpiceDB or similar authorization frameworks (Zanzibar-style) • Background building white-label SaaS platforms with per-tenant configuration
Work Environment • Hybrid: 3 days per week in-office
#engineering #director #full-time #LI-SD1 #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.
Our Rewards
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 and offer generous external learning and tuition reimbursement benefits. At AFS, we offer a hybrid work schedule for most roles that allows employees to have the flexibility of working from home and one of our primary offices.
EEO Statement
Apex Fintech Solutions is an equal opportunity employer that does not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, veteran status, marital status, or any other protected characteristic. Our hiring practices ensure that all qualified applicants receive fair consideration without regard to these characteristics.
Disability Statement
Apex Fintech Solutions is committed to creating an inclusive and accessible workplace for all candidates, including those with disabilities. We are dedicated to ensuring equal employment opportunities and providing reasonable accommodations to qualified individuals with disabilities. If you require reasonable accommodations to participate in the application or interview process, please submit your request via the Candidate Accommodation Requests Form. We will work with you to provide the necessary accommodations to ensure your full participation in our hiring process.
Sprachkenntnisse
- English
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