Staff Software Engineer

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

As a Staff Software Engineer, you will work with developers, designers, and operational staff to play a critical role in the development of Apex’s B2B offering and maintaining Apex’s direct-to-consumer application. You will be working on significant critical projects and will take responsibility for all facets of the development process. You will support and mentor other team members to improve tea performance and velocity. We are looking for someone who is eager to dive into a highly collaborative and fast-paced environment to build innovative financial products. Our ideal candidate has a strong sense of ownership, is an individual contributor, and enjoys driving projects from inception to testing to scaling in production.

Dutie/Responsibilities

• Software Development: Lead the design and development of complex software systems. Develop, test, and maintain robust, scalable, and high-performance applications.

• Technical Leadership: Provide technical guidance and mentorship to junior engineers, fostering an environment of continuous learning and improvement.

• Code Quality: Advocate for and ensure adherence to coding standards, code reviews, and best practices. Drive efforts to improve code quality, documentation, and overall development process.

• Collaboration: Collaborate effectively with cross-functional teams including product management, UX/UI, and QA to deliver optimal solutions that meet business and user requirements.

• Problem Solving: Tackle complex technical challenges with innovative solutions and contribute to resolving critical system issues.

• Process Improvement: Identify and implement improvements in development processes, tools, and technologies to enhance team productivity and software quality.

• Product Vision: Work closely with stakeholders to understand product vision and requirements, translating them into actionable technical designs and strategies.

• Agility: Participate in Agile/Scrum practices to deliver high-quality features within established timelines and collaborate in sprint planning and reviews.

Education and or Experience

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent work experience) required

• 8+ years of programming experience with significant experience in backend frameworks and technologies

• Experience with end-to-end full-stack mobile, web, and QA testing

• Experience with gRPC for efficient communication in distributed systems.

• Experience with CI/CD tools such as Jenkins and Github Actions.

• Experience with distributed streaming platforms like RedPanda or Kafka.

• Experience with AWS services including VPC, EC2, RDS, S3, Glacier, CloudTrail, Route 53, Inspector, Systems Manager, and GuardDuty.

Required Skills/Abilities

• Knowledge of data serialization with Protocol Buffers and experience working with GraphQL.

• Strong understanding of distributed tracing and monitoring tools like SigNoz.

• Strong knowledge of relational databases, specifically PostgreSQL.

• Familiarity with back-end technologies and RESTful / GraphQL API integration.

• Ability to manage time efficiently and is highly collaborative

• Strong leadership skills and ability to manage a team of developers

Work Environment

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

#engineering #mid-senior #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.