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

This is an incredible opportunity for a Sr Software Engineer to join Apex's Engineering team. As a software engineer you will work closely with other engineers, tech leads, product managers, and architects to build the next generation version of Apex Compliance and Regulatory applications, and Tax & Cost Basis services. The Software Engineer will be an integral part of our team supporting the technology organization in a transformation toward a highly scalable and resilient system. This is a role for someone who flourishes in a fast-paced and collaborative environment.

Duties/Responsibilities:

Define, develop, deploy, and operate software that delivers real value to Apex. We often work with micro-services, managed by Kubernetes.
Assist with the ownership of end-to-end software development of new features/tools including design, documentation, implementation, and testing of applications in our cloud development environment.
Support project priorities, deadlines and deliverables with your technical expertise.
Build robust, scalable, and self-healing services to ensure optimal performance and reliability with minimal manual intervention.
Support the production systems on cloud environment which includes build, deployment (CI/CD), and monitoring (Datadog, PagerDuty).
Deliver high quality code by following coding standards, performing code reviews and ensuring test coverage at all levels.
Identify risks, perform risk analysis, effectively manage risks; proactively raise prioritization and scheduling tradeoff decisions, escalating and identifying alternate options as appropriate; Follow defined Risk Management processes
Collaborate with engineers and other teams to elevate technology, follow agile ceremonies and consistently apply best practices.
Be a self-starter, capable of solving ambiguous and challenging technical problems with wide scope.
Assess existing processes and identify opportunity for improvement

Education and/or Experience:

BA, BS, or MS in Computer Science, Engineering or related technology field (or equivalent work experience) required.
5+ years of prior experience as a Software Engineer is required.
Experience with Docker and/or Kubernetes is required.
Experience working with any cloud-based provider (GCP/AWS/Azure) is highly desirable.
Experience with developing highly scalable and performant microservices preferred.
Experience working with Astronomer and Apache Airflow or any other related tools in the field of data orchestration is a plus.
Financial services background is a plus.

Required Skills/Abilities:

Strong fundamentals of system architecture, object-oriented design, algorithm, and data structures.
Expertise in at least one modern programming language (Java and Python preferred)
Strong SQL skills and expertise with relational database systems (e.g., PostgreSQL, SQL Server)
Ability to visualize and propose system design, document the design and implement it.
Ability to learn new and unfamiliar technologies (languages, tools, frameworks) quickly, as required.
Adaptability: while you enjoy establishing processes and standards, you understand the need to be flexible and enjoy trying new things.
Adaptability: while you enjoy establishing processes and standards, you understand the need to be flexible and enjoy trying new things.

Work Environment:

This job operates in a hybrid, office environment 2 days per week.

#engineering #associate #full-time #AFSUK

_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 a market-leading salary with an annual bonus, 28 days of annual leave plus 10 Northern Ireland national holidays, a training and development budget, and a pension matched up to 7%. Our benefits also cover private health insurance for medical, dental, and optical care, and life insurance. We emphasize work-life balance with flexible working hours, parental leave, a modern city center office, and a hybrid work schedule that allows for greater flexibility by partially working from home. Additional perks include monthly catered lunches, unlimited drinks and snacks, hackathon events, poker tournaments, and a charitable matching gift program.

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.