As a Senior Software Engineer | Blockchain at Daylight, you'll play a crucial role in developing our Django APIs and backend services that support our mobile app and partner integrations as well as designing the interactions with our smart contracts onchain. You'll build functionality that helps homeowners monitor, control, and optimize their energy usage while participating in our decentralized energy network. We're an early-stage startup, so this role goes beyond just writing code. You'll have significant input on architecture decisions, user experience, and product direction. As we scale, there will be opportunities to grow into a leadership or management position, mentoring junior developers and shaping our backend development strategy and onchain integrations. This role is ideal for someone who is passionate about crypto and clean energy, values craftsmanship in their code, and thrives in dynamic startup environments where your work has a direct impact on the product's success and the company's mission. This role is in-person in our New York City office. ### Responsibilities
GraphQL & REST API Development
Design and build robust GraphQL queries and mutations that power our mobile app and are tailored for mobile performance
Architect, develop, and maintain scalable API endpoints that support vendor/partner integrations
Collaborate with cross-functional teams to define, design, and ship innovative features
Continuously monitor performance and resolve bottlenecks and bugs across all endpoints
Champion code quality, automation, and comprehensive testing practices
CRM& Internal Tools Development
Leverage and extend Django’s admin interface to build a feature-rich internal CRM and administration portal
Customize the Django admin site to meet evolving business and workflow needs
Work with stakeholders to refine internal processes and drive user-friendly administrative solutions
Smart Contract Development
Design and implement Solidity smart contracts that underpin Daylight's decentralized energy markets
Develop Daylight's decentralized data storage and validation layer using modern frameworks (e.g. Commonware, Snapchain L3)
Architect secure oracle flows to feed real-world energy data onchain
Manage crosschain deployments and integrations for liquidity routing and yield pools using LayerZero, Wormhole, or similar technologies
Technical Architecture & DevOps
Contribute to architecture planning and drive technical design decisions that ensure scalability and security
Optimize the application stack for maximum speed and reliability
Embrace CI/CD methodologies and infrastructure-as-code practices to streamline deployments
Evaluate and integrate emerging technologies that enhance our backend ecosystem
What we’re looking for
| Must Haves
5+ years of experience developing APIs and backend services
2+ years of experience writing Solidity smart contracts
Strong understanding of API Development and best practices
Experience with Python, Django, PostgreSQL and Redis
Proficiency in writing clean, readable, and well-documented code
Experience with REST APIs, GraphQL, and network request handling
Familiarity with version control systems, particularly Git
Knowledge of backend performance profiling and optimization techniques
Experience with testing and managing AWS infrastructure and Kubernetes
Familiarity with crypto and related infrastructure, specifically EVM
Ability to work in a fast-paced environment with changing requirements
Strong problem-solving skills and attention to detail
Familiarity with DeFi protocols, especially stablecoins, lending markets, liquid staking, or yield optimization systems
Experience integrating offchain data via oracles
| Nice to Haves
Experience with Celery, Django admin sites
Experience with smart contract audits
Experience with continuous integration and delivery processes
Contributions to open-source projects
Understanding of energy markets and renewable energy systems
What we offer
Competitive salary and equity package
Opportunity to shape a category-defining product from the ground up
Comprehensive health, dental, and vision insurance
Wellhub membership
Monthly wellness stipend
Daylight values diversity and welcomes applications from all qualified candidates. We're building technology that serves everyone, and we believe diverse perspectives make our team and our product stronger.
