Quality Assurance Tester and Technical Writer at Trillium

The Role 

Trillium is seeking a Quality Assurance Tester & Technical Writer. In this role, you will play a critical part in ensuring the quality and reliability of our software while also providing traders and internal users with clear, concise, and well-structured documentation. You will test software to identify and document bugs and usability issues and translate technical concepts into user-friendly materials. This role requires strong attention to detail, a structured approach to software testing, and the ability to write accessible content for traders while maintaining technical accuracy. You’ll also play a key role in helping us build an AI-augmented knowledge base, enabling users to find answers quickly using natural-language queries. We’re investing in tools that make documentation not just searchable, but conversational. 

Responsibilities

Quality Assurance Testing  

• Collaborate with developers and product managers to understand software functionality and testing requirements  

• Design and execute manual test cases to ensure the reliability and usability of trading software  

• Identify, document, and track software bugs/issues, providing clear reproduction steps and supporting artifacts (e.g. logs, screenshots)  

• Verify bug fixes and enhancements before deployment  

• Conduct regression testing to ensure new changes do not impact existing functionality  
• Contribute to improving QA processes and recommend tool enhancements over time  

Technical Writing  

• Work closely with the development team to understand new features and translate them into clear actionable documentation  

• Write and maintain user guides, documentation, knowledge base articles, and other internal communications  

• Tailor documentation for a trader audience – accurate, visually supported, and fast to consume  

• Create visual assets including screenshots, GIFs, and annotated diagrams to illustrate software features and workflows  

• Review and refine content for clarity, consistency, and usefulness  

• Gather and incorporate feedback from stakeholders to improve content  

• Maintain up-to-date documentation as the product evolves  

 

Requirements

• 3-5 years of experience as a Quality Assurance Tester and/or Technical Writer, preferably in fintech, trading, or software development  

• Experience in manual software testing, including writing test cases and documenting defects  

• Strong writing and editing skills with a keen eye for detail and consistency  

• Proficiency with bug tracking tools such as Jira  

• Ability to translate complex technical concepts into digestible, user-friendly documentation  

• Proficiency in creating visual documentation (screenshots, GIFs, diagramming software)  

• Ability to manage multiple documentation projects in a fast-paced environment 

 

What Sets You Apart  

• Familiarity with trading platforms, market data, or financial technology  

• Experience with Jira and Confluence  

• Exposure to working closely with traders  

• Strong instincts for usability and UX, particularly in data-dense or fast-moving applications  

• Proficiency in organizing and maintaining internal knowledge bases or training materials  

• Experience structuring documentation for use with AI tools, or custom LLM integrations for documentation workflows 

• Involvement in collaborating across disciplines (engineering, product, trading, support)  

• A passion for clean, structured documentation and process excellence  

Location: This is a hybrid role based in NYC 

*Start Date: On or about August 4th, 2025

 

Compensation and Perks

• The reasonably estimated salary for this role is $90,000 – $130,000 + Additional Bonus if applicable. Actual compensation is based on a number of factors including but not limited to the candidate's skills, qualifications, and experience. 

• Complimentary breakfast on Tuesdays and lunch on Wednesdays and Thursdays 

• Trillium sets itself apart with a collaborative culture built on mutual respect and a shared commitment to excellence. Many of our team members have chosen to build their entire careers here, drawn by an environment that values long-term growth, fosters innovation, and creates a truly great place to work. 

• Trillium offers a wide range of best in class, comprehensive and inclusive employee benefits and perks including PTO, medical and dental insurance, 401(K) matching, parental leave, pre- tax commuter benefits, catered lunches, and a complimentary membership to Battleground Country Club.