Lead Software Engineer

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November 25

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Jonas Software

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Enterprise • SaaS • B2B

Jonas Software is a prominent acquirer of vertical market software companies, with a rich history of over 20 years. The company focuses on mission-critical software solutions across various industries, aiming to provide business tools and a network for growth. Jonas Software operates under a decentralized structure, allowing acquired companies to maintain their autonomy while tapping into Jonas's extensive experience and best practices. They adhere to a 'buy & hold forever' strategy, ensuring long-term stability and a permanent home for acquired businesses. With more than 130 successful acquisitions under its belt and being part of Constellation Software, Jonas Software emphasizes preserving the legacy and culture of the companies it acquires, fostering a culture of sharing and leveraging expertise in vertical market software.

1001 - 5000 employees

🏢 Enterprise

☁️ SaaS

🤝 B2B

📋 Description

• Design & build: Lead development of distributed services in .NET 8 / C# (ASP.NET Core), including REST/gRPC APIs, background workers, and event-driven components. • Cloud architecture: Implement cloud-native patterns on AWS (e.g., ECS/EKS/Lambda, API Gateway, RDS/Aurora PostgreSQL, S3, SQS/SNS/EventBridge, CloudWatch, KMS, Secrets Manager, Cognito/SSO). • Data & performance: Model schemas in PostgreSQL, optimize queries/indices, tune performance, and design migrations and data retention strategies. • Security & compliance: Build with HIPAA in mind—least-privilege IAM, encryption in transit/at rest, audit logging, PHI data handling, BAA considerations, and secure SDLC practices. • Quality & delivery: Champion CI/CD (GitHub Actions/CodeBuild/CodePipeline), IaC (Terraform/CDK/CloudFormation), automated testing (unit/integration/contract), and safe feature-flag rollouts. • Observability: Establish metrics, logs, and traces (OpenTelemetry) with actionable dashboards and alerting; lead incident response and postmortems. • Technical leadership: Run design reviews, set coding standards, perform thoughtful code reviews, and mentor a small team of engineers. • AI First Mentality: Safely apply AI tools (code assistants, test generation, static analysis, documentation) to accelerate delivery—respecting PHI boundaries and vendor policies. • Collaboration: Work closely with Product, Security/Compliance, Customer Success, and clinician stakeholders to translate needs into resilient designs.

🎯 Requirements

• 7+ years building production systems; 3+ years in a lead role. • Expert in .NET/C# and ASP.NET Core for high-throughput, cloud-hosted services. • Strong AWS experience designing secure, cost-efficient architectures. • Solid PostgreSQL skills: schema design, performance tuning, migrations. • Hands-on with CI/CD and IaC (GitHub Actions, Terraform/CDK, Docker). • Proven ownership of production systems (incident response, postmortems). • Working knowledge of HIPAA concepts (PHI handling, auditability, BAAs, and logging). • Excellent communication: clear design docs, pragmatic trade-offs, and stakeholder alignment. • Ability to speak up and express opinions or concerns in a positive and constructive manner. • Proven use of AI coding assistants, prompt engineering for dev workflows, or internal guardrails for safe AI usage.

🏖️ Benefits

• Competitive salary + equity • Medical, dental, vision • 401(k) • Learning budget (including AI tools and cloud certifications)