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Senior Backend Engineer | Jigsaw

full-time
Posted on February 23, 2026

Job Description

Senior Backend Engineer

Job Summary

We are looking for a Senior Backend Engineer to enhance our infrastructure and reliability as we cater to enterprise customers and on-premise deployments. This role is essential to ensure that our systems are reliable and scalable. The ideal candidate will have a strong background in managing infrastructure end-to-end, including coding, deploying, and monitoring.

Responsibilities

  • Design and build robust, reliable backend infrastructure that scales effectively at an enterprise level.
  • Manage cloud deployments utilizing AWS services such as EC2, RDS, Lambda while focusing on cost optimization.
  • Set up containerized applications, manage networking, and connect services efficiently.
  • Implement comprehensive observability through logging, alerts, and monitoring using tools like Sentry and CloudWatch.
  • Build testing frameworks (unit, integration, API) and CI/CD pipelines to ensure speedy development without compromising reliability.
  • Optimize database performance through SQL queries, connection pooling, and architecture improvements.
  • Handle background job systems and queues, utilizing tools such as Celery and Redis for distributed task management.
  • Prepare the system for SOC2 compliance and address security requirements to protect customer data.
  • Develop on-premise deployment capabilities tailored for enterprise customers.
  • Foster a culture of reliability and resilience in system architecture to alleviate concerns during customer onboarding and feature launches.

Qualifications

  • 3-4 years of backend experience in building and managing scalable production systems.
  • Strong expertise in AWS or other cloud infrastructure management, with hands-on experience beyond basic usage.
  • Proficiency in Python (FastAPI, Django, Flask) with a focus on writing clean, maintainable code.
  • Experience with Docker, microservices, queue-based architectures, and distributed systems.
  • Production mindset emphasizing failure modes, monitoring, reliability, and cost considerations.
  • Ownership mentality, showcasing proactive problem-solving and initiative.

Preferred Skills

  • Strong skills in any 3-4 of the following areas:
    • Scaling applications using Docker, Kubernetes, and EC2 utilization.
    • Database optimization, including SQL query performance, connection management, and PostgreSQL tuning.
    • Inter-service communication strategies such as WebSockets, real-time systems, and API design.
    • Security practices concerning authentication, tokens, private subnets, and API gateways.
    • Testing methodologies including unit, integration, and API test frameworks.
    • Monitoring tools and error tracking systems including Sentry and CloudWatch.
    • CI/CD practices utilizing CodePipeline, CodeDeploy, or GitHub Actions.

Experience

  • 3-4 years of relevant experience in backend engineering with a focus on infrastructure and reliability in production environments.

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