Note: The job is a remote job and is open to candidates in USA. DTN is a global data and technology company that supports operational leaders in various industries. They are seeking a Senior Software Engineer to design and implement GraphQL APIs, lead quality improvement processes, and mentor junior engineers within their Energy sector.
Responsibilities
- Designs, develops, and implements GraphQL APIs to provide unified data access across multiple systems
- Leads the development and expansion of semantic API architecture including schema design, resolver optimization, and data normalization strategies
- Establishes data governance and security practices for semantic API layers
- Collaborates with Data Engineering teams to integrate data sources and transformation patterns
- Leads quality improvement processes including code reviews, schema validation, and performance optimization
- Mentors junior engineers and provides technical leadership on GraphQL and semantic architecture best practices
- Develops comprehensive documentation for semantic API patterns and implementations
Skills
- Expert-level proficiency in GraphQL and AWS AppSync including schema design, batch Lambda resolvers, pipeline resolvers, subscriptions, and caching
- Minimum 5 years of AWS cloud experience (Lambda, RDS, DynamoDB, IAM, CloudWatch, X-Ray, Kinesis, Glue, Athena)
- Experience with AWS CDK or CloudFormation for infrastructure as code
- Understanding of Lambda optimization (cold starts, concurrency, VPC considerations)
- Expert in Node.js for building batch Lambda resolver functions
- Proficiency in Python for data processing and Lambda functions
- Deep understanding of Lambda batching patterns (DataLoader, batch aggregation, connection pooling, caching)
- Expert-level SQL and database knowledge (Postgres, MySQL, Oracle)
- Experience with NoSQL databases (DynamoDB)
- Understanding of data architecture principles including modeling for transactional and analytical workloads
- Advanced Git including branching strategies and code review processes
- CI/CD pipelines for AppSync and Lambda deployment
- Strong testing strategies (unit, integration, schema validation, batch operation testing)
- Performance profiling and optimization for serverless and databases
- Minimum 7 years of software engineering experience with 3-5 years focused on API architecture and data-intensive applications
- Strong data architecture background with understanding of data management, integration patterns, and governance
- Proven ability to lead technical initiatives and mentor engineers
- Excellent communication and documentation skills
- Experience in Agile/Scrum environments
- Problem-solving mindset for performance, data consistency, and architectural issues
- Cost optimization experience in serverless environments
- AWS Certifications
- Background in energy, commodities, or supply chain domains
- Multi-tenant architectures experience
- Contributions to open-source GraphQL projects
- Database administration experience across multiple platforms
Benefits
- Unlimited PTO
- Flexible working hours
- Remote work model (position dependent)
- Competitive Medical, Dental and Vision Insurance Plans
- 6% 401K matching
- Unlimited access to 13k+ courses via learning platform to support employee career advancement
- Employee Assistance Program (EAP)
Company Overview
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