Sr. Full Stack Engineer

Trajan Wealth LLC • Scottsdale, AZ

1d • $108,000 - $140,000 • Onsite

About The Position

Trajan Wealth is seeking a Senior Full Stack Engineer with deep API management experience to build, scale, and secure the digital platforms that power its financial services products. The role spans customer-facing web experiences and the API gateway, authentication, and integration layer connecting internal systems, partner banks, and third-party data providers. The engineer will work with product managers, designers, security, compliance, and SRE teams to deliver reliable features that meet financial-services regulatory requirements. The position is 100% onsite at Trajan Wealth’s Scottsdale corporate headquarters.

The role works within small, autonomous product squads with end-to-end ownership. The engineering culture emphasizes trunk-based development, CI/CD, small reversible changes, paved roads and platform support, time for technical debt and learning, and blameless incident reviews that result in durable improvements.

Requirements

• At least 5 years of professional software engineering experience, including meaningful experience with both frontend and backend systems.
• Proficiency with a modern frontend framework, preferably React (Vue or Angular also acceptable), and TypeScript.
• Proficiency in at least one backend language commonly used in financial services: Java, Python, Go, Node.js, or C#.
• Working knowledge of Dagster or a comparable orchestration framework such as Airflow or Prefect, and Snowflake, including data pipelines, warehouse modeling, and integration of analytical workloads with operational APIs.
• Hands-on experience designing and operating production APIs at scale, including REST and ideally GraphQL, gRPC, or event-driven systems such as Kafka or EventBridge.
• Direct experience with a commercial or open-source API management platform such as MuleSoft, AWS API Gateway, or Azure API Management.
• Knowledge of OAuth 2.0, OIDC, JWT, mTLS, and API key management.
• Cloud experience with AWS, Azure, or GCP, including Docker and orchestration with Kubernetes or ECS.
• Working knowledge of relational and at least one non-relational database, with the ability to reason about data consistency, transactions, and idempotency in financial workflows.
• Demonstrated ability to ship software in regulated environments, including code reviews, change management, and audit trails.
• Clear written and verbal communication skills and ability to explain technical concepts to product, business, and non-technical stakeholders.

Nice To Haves

• Experience integrating with core banking platforms, payment rails (ACH, SWIFT, FedNow, or card networks), market data providers, or KYC/AML vendors.
• Familiarity with open banking standards such as FDX in the US or PSD2/Open Banking in the UK and EU, and consent-driven data-sharing patterns.
• Exposure to financial-grade API security profiles (FAPI) and production use of mutual TLS.
• Experience contributing to a developer portal, internal API marketplace, or platform-as-a-product model.
• Background in event sourcing, CQRS, or ledger-style data models.
• Prior experience as an on-call leader or engineering point of contact during incidents affecting regulated services.

Responsibilities

• Design, build, and operate end-to-end full-stack features spanning React/TypeScript front ends, backend services, data persistence, and event-driven integrations.
• Own the API lifecycle, including RESTful and event-driven API design, versioning, deprecation, backward compatibility, OpenAPI/Swagger documentation, and SDKs.
• Configure and tune the MuleSoft API gateway platform.
• Implement and maintain financial-services authentication and authorization patterns, including OAuth 2.0, OIDC, mTLS, JWT validation, scoped access tokens, and consent management.
• Partner with security and compliance teams to meet applicable standards and support internal audits and external regulatory reviews.
• Build observability into systems through structured logging, distributed tracing, metrics, alerting, and meaningful service-level objectives.
• Write production-quality, well-tested code and uphold engineering standards through code review, pairing, and mentorship of mid-level engineers.
• Participate in the on-call rotation, drive incident response, and lead blameless postmortems that produce lasting system improvements.
• Collaborate with product teams to translate business and regulatory requirements into technical designs and contribute to trade-off discussions about scope, risk, and timeline.

Benefits

• $108,000 to $140,000 base salary plus bonus.
• 401(k) with a matching contribution up to 13%.
• United Healthcare PPO medical coverage for employees, paid by the company.
• Delta Dental PPO and United Healthcare Vision.
• Short Term Disability, Long Term Disability, Life Insurance, and additional voluntary options.
• Generous holidays and PTO.
• Future career growth opportunity.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed