Blitzy
Principal Software Engineer
Cambridge, MA · Principal
Sponsorship not specified$280k-$320kDetected 56 days ago
JavaScriptPythonNode.jsFull-Stack DevelopmentSQLNoSQLPostgreSQLMySQLMongoDBCassandraDynamoDBVector DatabasesAWSGCPAzureKubernetesTerraformRESTgRPCLLMsManual TestingLeadership
About the role
- This is the most senior individual contributor role at the company today.
- We are looking for someone who has already operated at Principal / Staff+ scope in a highly technical environment and expects to spend their time writing, reviewing, and shipping production code.
- Leverage comes from system ownership, execution quality, and durable technical decisions - not people management or process.
Responsibilities
- We move quickly and decisively to innovate internally and deliver exceptional software externally.
- You independently own mission-critical production systems end-to-end
- The opportunity to re-shape an entire industry and create a platform that changes the future of software creation
- Building and improving Blitzy using Blitzy, holding the platform to real-world standards
Nice to have
- Graph databases (Neo4j) for modeling and searching complex relationships
- Vector databases / embeddings infrastructure for semantic search and retrieval
- Designing and implementing LLM validation loops (evaluation, feedback, regression testing, and failure analysis)
- LangSmith (or equivalent tooling) for tracing, evaluation, and debugging
- Familiarity with specific models or vendors (e.g., OpenAI, Anthropic) is a plus
- Strong understanding of frontend frameworks and architecture
- Ability to evaluate and contribute to frontend technical decisions
- Experience working within - or modernizing - complex, long-lived production environments
Skills
- Python (primary language)
- Backend frameworks and microservices architectures
- RPC-based services (REST, gRPC)
- Node.js and JavaScript (supporting languages)
- Expertise across at least two of AWS, GCP, and Azure, with GCP mandatory
- Expert-level Kubernetes experience for container orchestration in production environments
- Terraform for infrastructure as code
- Strong expertise across both SQL and NoSQL databases
Compensation
- Competitive salary and equity
- $280,000 - $320,000 + bonus and equity
Benefits
- Compensation: $280,000 - $320,000 + bonus and equity
- Paid medical, dental, and vision insurance for you and your dependents
- Flexible vacation days, sick days, and work-from-home days
Company info
- Led by two pioneering co-founders we are one of the fastest growing companies in the U.S., creating our own category of enterprise autonomous software development.
- We automate thousands of hours of software development for our customers, which includes strong representation within the Fortune 500.
- How we work:
- We move Blitzy Fast: Time is both our company's and our clients' most precious asset.
- Championship Mindset: We operate like a professional sports team.
- We win as a team by holding ourselves and each other to high standards, collaborating in-person, and remaining focused on the mission.
- Passion for Invention: We're pushing the frontier of what's possible, requiring constant innovation and iteration.
- We Work for the Customer: We focus on delivering outsized value to the customers we work with and expanding those relationships into deep, meaningful partnerships.
- We believe in being 'everyday athletes'-taking care of ourselves so we can bring our best minds to work.
- We promote great sleep, movement, and restorative activities for optimal mental performance.
- It makes for a happier and more productive team.
- You materially increase the effectiveness of the engineering organization through example and judgment
- End-to-end ownership of production-grade backend systems used by enterprise customers
This listing is sourced directly from Blitzy's careers page and normalized into a canonical job model.