Sr. Software Engineer
Mondo
full-remoteseniorcontractbackend Baltimore, MD 2 days ago via LinkedIn
104,000 - 114,400 USD/annual
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GolangTypeScriptGraphQLApolloREST APIsPostgreSQLAWSCI/CDTerraformObservability
About the role
Role Overview
Senior Backend Software Engineer to design, build, and maintain scalable, secure, high-performance APIs and distributed systems in a modern cloud environment.
Contract Details
- Title: Sr. Software Engineer
- Location: 100% Remote
- Start date: ASAP
- Duration: 6 months (potential extension)
- Compensation: $50–$55/hr (W2) plus benefits (Medical, dental, vision, 401k)
- Visa sponsorship: Not eligible
Responsibilities
- Build and maintain high-performance APIs using GraphQL and REST
- Design secure, scalable backend services with modern architectures
- Collaborate with cross-functional teams on API integrations and federation
- Build GraphQL subgraphs and manage schema composition using Apollo
- Manage and optimize data layers across PostgreSQL and data warehouse systems
- Deploy and operate services on cloud platforms (AWS, GCP, Azure)
- Implement observability (logging, metrics, distributed tracing)
- Maintain CI/CD pipelines and support reliable zero-downtime deployments
Requirements
Must Have
- Strong proficiency in Golang
- Strong proficiency in TypeScript (Node.js)
- Experience building APIs with GraphQL (Apollo) and REST
- Hands-on experience with ORMs: GORM, Prisma, or TypeORM
- Relational database + data modeling with PostgreSQL
- Cloud experience with AWS/GCP/Azure (serverless and containerized environments)
- Security protocol knowledge: JWT, OIDC, RBAC
- CI/CD experience; Infrastructure as Code with Terraform/CDK
- Strong observability knowledge (logging/monitoring/tracing)
Nice to Have
- GraphQL federation and Apollo Router
- Event-driven systems (e.g., SQS, EventBridge)
- Integrations with data warehouses such as Snowflake
- Distributed systems design and performance optimization
Scraped 4/13/2026