Senior Software Engineer
About The Position
The Software Engineering job family specializes in the design, development and testing of software systems or applications for software enhancements and new products including cloud-based or internet-related tools. DTN is a global data and technology company helping operational leaders in energy, agriculture, and weather-driven industries make faster, smarter decisions. Our Operational Decisioning Platform turns complex data into decision-grade insights – empowering customers to expand their margins, accelerate growth, and outpace risk. With more than 1,200 employees globally, DTN serves the companies that feed, fuel, and protect the world.
Requirements
- 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
Nice To Haves
- 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
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
Benefits
- Competitive Salary
- 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)
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
