Senior Full-Stack Software Engineer

About the role:

We are looking for a Senior Full-Stack Software Engineer to help design and build scalable systems that power our products and platform.

In this role, you will contribute to architectural decisions, lead key technical initiatives, and collaborate closely with product and design teams to deliver high-impact features. You’ll work across the stack, help improve engineering practices, and support the growth of other engineers while solving meaningful technical challenges at scale.

If you’re motivated by building reliable systems, tackling complex problems, and partnering closely with product and design to deliver impactful solutions, you’ll thrive in this role.

About us:

At 8am, our vision is to power a world where professionals thrive. We start every day on a mission to empower professionals with the most trusted, innovative technology to deliver world-class outcomes for their clients and exceptional financial results for their business. They count on our purpose-built solutions to simplify operations, ensure compliance, and fuel profitable growth, so they can focus on their clients and do more of the work that matters.

Founded in 2005, 8am™ (formerly AffiniPay) is the professional business platform built to help legal, accounting, and other client-focused professionals run stronger, more profitable businesses. Today, more than 250,000 professionals across the U.S. trust 8am to help them work smarter, serve clients better, and unlock their full potential. We have been recognized as one of Inc 5000’s fastest growing companies in the U.S. for 13 years in a row, and as a result, our teams continue to grow as well!

What you'll do:

• Design and build scalable web applications using modern backend and frontend technologies (e.g., Rails, Node.js, React, or similar frameworks)
• Develop and maintain APIs and backend services that support product functionality
• Build reusable frontend components and contribute to shared UI libraries
• Improve and modernize existing systems to enhance performance, scalability, and maintainability
• Collaborate with product and design teams to translate business requirements into technical solutions
• Mentor engineers and support the professional growth of teammates
• Participate in architecture discussions and contribute to technical decision-making
• Support reliable deployments by debugging issues and collaborating with DevOps and QA teams
• Participate in sprint planning, grooming, and retrospectives
• Contribute to improving engineering standards, tooling, and development practices

About you:

• Strong experience designing and building production web applications
• Experience working across both frontend and backend systems
• Experience with modern web frameworks (such as Rails, Node.js, React, or similar technologies)
• Experience building APIs and backend services
• Solid understanding of relational databases and SQL (e.g., PostgreSQL, MySQL)
• Strong understanding of software design principles and maintainable system architecture
• Experience working in Agile development environments
• Experience mentoring engineers or providing technical guidance
• Strong communication and collaboration skills
• Ability to work effectively with distributed teams
• Preferred location: Brno, Czech Republic

Nice to have:

• Experience building scalable Software-as-a-Service (SaaS) applications
• Experience with modern frontend frameworks such as React, Next.js, or similar
• Experience with backend frameworks such as Ruby on Rails, Node.js, or similar
• Experience with cloud platforms (AWS, Google Cloud Platform, etc.)
• Experience with observability, monitoring, or performance tuning
• Experience working with experimentation or analytics tools

Diversity, equity & inclusion at 8am:

At 8am, we recognize that innovation occurs with a strong team of people who are diverse in background, personality, talent and ideas. Experience comes in many forms and ensuring a diverse and inclusive workplace where we continue to learn from each other is an integral part of our culture. We are committed to creating a welcoming and transparent environment for all that embraces those differences through education, equal access to opportunities and information, inclusionary programs, and community outreach.

Why 8am

At 8am, our culture is shaped by the people who bring it to life every day. Together, we build a company rooted in continuous learning, genuine community, holistic wellness, and meaningful engagement—values that empower us as individuals and unite us as a team. Our culture is grounded in our core values: Work Smart, Win Fast; Outshine Ordinary, and We Find a Way. These values drive how we serve our customers and work with each other in a collaborative, inspiring, and empowering environment, every day.

Security advisory:

Our hiring teams at 8am are dedicated to recruiting top talent that share our passion for serving the professional services industry through innovative financial technology. As such, our Talent Acquisition Team only follows legitimate hiring practices. We will always communicate with our candidates using emails with the 8am domain and will never ask for sensitive/personal data during the application process. All interviews take place over phone call, Zoom/Google Meet or in person. All offers are communicated verbally by our Talent Acquisition Specialists with a written offer letter as a follow up.