Senior Software Engineer

Summary

Join Kard, a rapidly growing fintech company, and play a pivotal role in optimizing our internal developer platform. As a Platform Engineer, you will streamline and automate software development, deployment, and operations, ensuring efficient and reliable processes. You will architect and maintain our AWS infrastructure, leverage automation tools, and collaborate with engineering teams to improve observability and reduce operational friction. Your decisions will directly impact developer productivity and Kard's ability to innovate. This role requires expertise in AWS, Kubernetes, Terraform, and CI/CD, along with strong problem-solving and communication skills. Kard offers a competitive salary and benefits package, including flexible PTO, health insurance, and a remote-first work environment.

Requirements

• Expertise in AWS, particularly with cross-account networking, EKS, Lambda, RDS, S3, Cognito, and IAM
• Deep experience with Kubernetes, including cluster management, networking, scaling, and security best practices
• Hands-on experience with Terraform and infrastructure automation, enforcing modular, maintainable, and secure infrastructure
• Strong background in CI/CD pipelines, deployment automation, and incident response, ensuring fast and reliable software delivery
• Experience in build vs. buy decision-making, leveraging third-party automation, open-source tooling, and managed services to optimize cost and efficiency
• Familiarity with developer productivity and observability tooling, such as Datadog, Prometheus, OpenTelemetry, or similar
• Experience designing self-service platforms that reduce cognitive load and streamline engineering workflows
• Strong problem-solving and communication skills, with the ability to align platform work with business needs
• Experience leading technical projects and mentoring engineers, helping bridge platform engineering with product development

Responsibilities

• Build and maintain developer experience platforms that make deployment, operations, and observability easy and reliable
• Architect and evolve Kard’s multi-account ("cell") AWS infrastructure, ensuring it is secure, cost-efficient, and adaptable while improving usability through automation and self-service tooling
• Evaluate build vs. buy for internal platform needs, leveraging open-source tools and third-party automation to reduce engineering burden
• Develop and enforce standards, automation, and guardrails for infrastructure as code (Terraform), CI/CD, cost management, security, and compliance
• Improve incident management, observability, and system resilience, ensuring fast recovery and high availability
• Work closely with engineers across the company to reduce cognitive load, improve developer workflows, and accelerate product delivery
• Drive the evolution of Kard’s cell-based multi-account architecture, making it more usable, flexible, and efficient
• Enhance and automate feature flag management, database migrations, smoke testing, and operational tooling
• Lead and participate in technical decision-making, integrating developer experience, scalability, and business impact
• Mentor engineers and advocate for best practices in operational excellence, security, and platform engineering

Preferred Qualifications

• Experience with fintech, adtech, or other transaction-based systems
• Background in cost efficiency, compliance, and security automation
• Contributions to open-source projects or active participation in the engineering community
• Experience in high-growth startups, balancing speed and scale

Benefits

• Flexible PTO, with a minimum requirement to take one day off a quarter, ten days a year, promoting mental well-being
• Observance of 11 Federal Holidays, plus an additional day each for Black Friday and Christmas Eve (US employees only)
• Health, Dental and Vision Insurance
• 401k with employer match (US employees only)
• Coworking space and WFH setup reimbursement
• Company Offsites two times per year for planning, team-building, and networking
• Remote-first work environment