Senior Technical Writer

peak6group; Austin (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

Apex Fintech Solutions in Austin is seeking a Senior Technical Writer to craft API documentation and developer content for our fintech platform. You will build guides, references, and tutorials that empower clients and engineers to integrate quickly and effectively.

Collaborate with engineers, product managers, and architects to translate complex concepts into clear, accurate documentation, while leveraging AI to accelerate content creation and maintain high quality at scale.

Qualifications

• Bachelor's degree or higher (in a relevant field)
• Experience writing API documentation for developer audiences
• Ability to collaborate across engineering, product, architecture, and client-facing teams

Responsibilities

• Create and maintain high-quality API and knowledge-base content for developers.
• Collaborate with engineering, product, architecture, and client-facing teams to write API documentation and guides.
• Lead documentation initiatives and drive projects to completion with minimal oversight.
• Develop API references, integration guides, tutorials, quick starts, and release documentation.
• Use generative AI tools to research, draft, and improve technical content while ensuring accuracy and security.

Skills

Technical writing

APIs

AI tooling

Education

Bachelor's degree

Tools

Swagger

OpenAPI

AI tools

Job description

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

At Apex Fintech Solutions, we've got an amazing track record of success and fostering ongoing innovation. Our technical writing staff sits at the leading edge of this disruption and is responsible for communicating the scope and impact of Apex's top-of-class financial infrastructure products and software solutions for technical and financial client personas. If you thrive off the energy of an enthusiastic, collaborative team and love to learn and solve problems, we want to hear from you.

As a Senior Technical Writer at Apex Fintech Solutions, you're responsible for developing technical documentation to support Apex's platform, including our APIs and the clients who use them. In addition to your expert skills in producing content for developer audiences, this role demands agility to support rapid software-development cycles. Your ingenuity and resourcefulness will be critical as you adapt to varying circumstances and shifting timelines and collaborate across multiple teams to achieve objectives. You excel in understanding the perspective of your audience, ensuring clarity and depth in your communications, and you possess keen curiosity and drive to continuously learn about the products you document.

The Senior Technical Writer role will lead the creation and evolution of technical documentation for our technology products, APIs, platforms, and client experiences. You will partner with engineers, product managers, architects, and business stakeholders to translate technical concepts into clear, accurate, user-focused content.

As a senior member of the team, you will lead by example – consistently delivering high-standard content that adheres to our writing guidelines and mentoring less experienced team members. You will also combine strong technical writing expertise with hands-on use of artificial intelligence to improve documentation quality, accelerate content development, streamline workflows, and enhance the overall experience.

Duties and Responsibilities:

• Create and maintain high-quality, client-facing API and knowledge base content that meets industry standards, keeping pace with product development teams and adhering to style guidelines.


• Collaborate closely with engineering, product management, architecture, and client-facing teams to write API documentation and programming guides.


• Lead documentation initiatives, make informed decisions, and drive projects to completion with minimal oversight.


• Develop API reference documentation, integration guides, tutorials, quick starts, how-to guides, conceptual content, release documentation, and developer resources.


• Use generative AI tools as part of the daily technical writing workflow to research, draft, restructure, analyze, summarize, and improve technical content.


• Apply human expertise and editorial judgment to AI-generated content, ensuring accuracy, consistency, technical validity, security, and appropriate tone.


• Identify opportunities to use AI and automation to reduce repetitive documentation tasks and improve content production efficiency.


• Develop effective AI prompts and repeatable workflows for documentation creation, content analysis, and knowledge management.


• Explore approaches such as structured content, metadata, reusable content components, and knowledge bases that improve content accessibility for both humans and AI systems.

Requirements and Qualifications:

• Bachelor's degree or higher (in En