Sr Full Stack Engineer (Golang)

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 Senior Full Stack Engineer, you will work cross-functional teams to play a critical role in the development of Apex’s Wealth 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 team 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 finding creative solutions to complex problems. Duties/Responsibilities Apex Fintech Solutions is seeking a Senior Full Stack Software Engineer to play a pivotal role on our engineering team, responsible for designing, developing, and maintaining high-quality software solutions. You will leverage your expertise to contribute to all aspects of the software development lifecycle, from requirements analysis and architectural design to implementation, testing, and deployment. You will collaborate closely with cross-functional teams to deliver scalable, reliable, and efficient software products that meet the needs of our users and business objectives. Backend Services Development: Lead the development, support, and quality assurance efforts for our backend services that power our portfolio rebalancing engine. Utilize automated testing extensively to ensure the reliability and accuracy of the services. Technical Documentation: Maintain technical documentation and guides, ensuring they are up to date, accurate, and easy to understand for both internal teams and external stakeholders. Product Releases and Deployments: Serve as the point person for product releases and deployments, coordinating with cross-functional teams to ensure smooth and successful releases into production environments. Data Analysis: Comfortably analyze large datasets for accuracy and logical values, leveraging your analytical skills to ensure data integrity and identify insights that drive decision-making and product improvements. Code Review and Quality Assurance: Conduct thorough code reviews, identify areas for improvement, and ensure adherence to coding standards, best practices, and quality metrics. Cross-Functional Collaboration: Collaborate closely with product managers, designers, and other stakeholders to understand requirements, define technical solutions, and deliver high-quality software products on time. Problem Solving and Troubleshooting: Investigate and resolve complex technical issues, troubleshoot production incidents, and implement preventive measures to minimize system downtime and ensure service reliability. Continuous Learning and Innovation: Stay updated on industry trends, emerging technologies, and best practices in software engineering, and apply this knowledge to drive innovation and improve development processes and methodologies. Education and/or Experience: Bachelor’s or Master’s degree in Computer Science, Engineering, or related field or equivalent work experience 7+ years of experience in software development with a strong proficiency in one or more programming languages such as Python, Go, or Java Experience with automated testing frameworks and methodologies for backend services Experience as a technical lead on epics, driving the technical direction and implementation strategy for large-scale projects Experience with CI/CD (Continuous Integration/Continuous Deployment) pipelines and tools, automating build, test, and deployment processes Experience with cloud platforms (e.g., AWS, Azure, GCP) Experience with SQL including the ability to write complex queries and optimize database performance Experience in financial services a plus Required Skills/Abilities: Ability to troubleshoot production systems, diagnose issues, and implement effective solutions to ensure system reliability and availability Strong problem-solving abilities, analytical thinking, and attention to detail Effective communication and interpersonal skills, with the ability to collaborate effectively with cross-functional teams and act as a technical leader when necessary Knowledge of Agile software development methodologies and tools (e.g., Scrum, Kanban, Jira) 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. At Apex, we aim to enable frictionless investing for everyone. Help us in our mission to democratize finance, and apply to our open roles today. Introduce yourself to our recruiters and we'll get in touch if there's a role that seems like a good match. At Apex, we stand for efficiency and transparency. In every office, you’ll find passionate, committed, dedicated teams driven to find smart solutions to solve our clients’ toughest challenges. We are passionate about our employees, providing the benefits and perks that elevate you, reward you, and help you give back. We provide great flexibility, a collaborative, open work space, and real potential to grow with the firm.

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