Software Engineer – Full Stack (SaaS & Infrastructure)
FloxLocation: Remote (timezones between PST and UTC+1)
Employment Type: Full-Time
Reports To: VP of Engineering
About Us
Flox is an innovative Series A startup building developer tools for engineering teams. We're focused on simplifying complex workflows, improving developer productivity, and empowering teams to deliver high-quality software faster. At Flox, we value technical excellence, collaboration, and iterative improvement, and we're looking for a Software Engineer – Full Stack to help us build and scale our core platform.
About the Role
We are looking for a full stack focused software engineer to help design, build, and maintain the core services and user interfaces that power our SaaS offering. You will work on APIs, multi-tenant storage, role-based access control, authentication and authorization, payment systems, web presentation, and database schema design. You will be responsible for ensuring our services are secure, scalable, and efficient, supporting both our internal teams and customers.
This role is ideal for an engineer who thrives in a startup environment, understands the challenges of scaling SaaS platforms, and enjoys building robust and well-architected systems. You’ll work closely with product, design, and other engineers to deliver high-quality services that drive our product forward.
Responsibilities
Design, implement, and maintain scalable services that power our SaaS platform.
Develop and optimize APIs for internal and external use.
Work on authentication & authorization systems, including role-based access control (RBAC) and multi-tenancy models.
Build and integrate payment processing systems for subscriptions and billing and back office needs.
Enable simple get-out-of-the-way experiences via our web console.
Design and optimize database schemas for performance and maintainability.
Ensure services meet security, compliance, and SOC2 requirements.
Implement observability, monitoring, and incident response processes to ensure system reliability.
Collaborate closely with other engineers, product managers, and designers to deliver seamless user experiences.
Participate in code reviews, architecture discussions, and technical roadmap planning.
Perform incident response and support (includes on-call rotation)
Qualifications
Technical Expertise:
4+ years of experience in full-stack software development for a SaaS or Enterprise administration console.
Strong proficiency in Go, Rust, Python, or a similar backend language.
In addition to the backend language, strong proficiency with Javascript/Typescript, particularly Angular.
Experience with RESTful APIs and/or gRPC.
Expertise in authentication and authorization protocols (OAuth, OpenID Connect, JWT).
Experience designing and implementing RBAC and multi-tenant architectures.
Strong understanding of SQL and database optimization (PostgreSQL, MySQL, or similar).
Familiarity with payment processing systems (Stripe, Braintree, or similar).
Knowledge of observability tools (Prometheus, OpenTelemetry, etc.).
Nice-to-Have:
Experience with SOC2 compliance, security best practices, and infrastructure hardening.
Familiarity with modern Angular frameworks
Familiarity with Nix, Rust, or Node.js.
Knowledge of event-driven architectures (Kafka, NATS, or RabbitMQ).
A willingness to Karaoke
What We Offer
Competitive salary and meaningful equity in an early-stage startup.
Flexible, remote-friendly work environment.
Opportunities for career growth in a high-impact role.
The chance to shape the technical culture and architecture of a rapidly growing SaaS product.
Travel: It is encouraged to travel about 2 weeks a year to collaborate with the team in person.
How to Apply
To apply, please submit your resume and a brief cover letter explaining why you’re excited about joining Flox as a Software Engineer – Full Stack