This employer is seeking a
Senior Software Engineer (Contract) for a fully remote, US-based engagement. This role focuses on building and scaling backend services and platform capabilities using
Elixir, Phoenix, LiveView, and PostgreSQL, while supporting mobile platform integrations and infrastructure. The organization is a private equity-backed technology leader dedicated to accelerating the transition to a more sustainable energy future through intelligent, grid-interactive building systems.
This is an opportunity to work on high-impact, real-world systems that directly contribute to sustainability and energy efficiency at scale. Engineers on this team collaborate closely with product, design, and infrastructure partners to deliver reliable, performant applications used by enterprise customers, utilities, and facility operators. The role offers meaningful ownership, strong technical challenges, and the chance to help shape a modern, distributed platform in a collaborative and forward-thinking environment.
Required Skills & Experience - 6+ years of professional software development experience, including ownership of production systems
- 3+ years of hands-on Elixir development in production environments
- Experience building applications using Phoenix, LiveView, and Ecto
- Strong experience with PostgreSQL, including query optimization, indexing, transactions, and schema design
- Working knowledge of OTP concepts (GenServers, Supervisors, Tasks, Agents)
- Experience with distributed systems architecture, scalability, and reliability best practices
- Experience with background job processing tools (e.g., Oban, Broadway, or similar)
- Strong testing practices and experience with automated test frameworks
- Experience building and maintaining APIs and backend services consumed by mobile or frontend clients
- Solid understanding of CI/CD pipelines and deployment workflows
- Strong debugging, analytical, and problem-solving skills
- Experience collaborating cross-functionally with Product and Design teams
Desired Skills & Experience - Experience supporting mobile applications and platform integrations
- Familiarity with native mobile ecosystems (iOS/Android) at an architectural level
- Experience with cloud platforms such as AWS, Google Cloud Platform, or Azure
- Experience with observability tools (logging, metrics, tracing)
- Familiarity with containerization and orchestration (Docker, Kubernetes)
- Experience working in energy, IoT, or distributed hardware-integrated systems
- Experience using AI-assisted development tools (e.g., GitHub Copilot, Claude) to accelerate delivery
- Previous experience in high-growth or PE-backed environments
What You Will Be Doing Tech Breakdown - Elixir / Phoenix / LiveView: 60%
- PostgreSQL & Data Modeling: 15%
- Distributed Systems & Backend Architecture: 15%
- CI/CD, DevOps & Infrastructure: 10%
Daily Responsibilities - Design, build, and maintain backend services and platform features: 50%
- Collaborate with product, design, and engineering teams on feature development: 20%
- Optimize performance, scalability, and reliability of systems: 15%
- Conduct code reviews, testing, and technical mentoring: 10%
- Support deployments, debugging, and production issue resolution: 5%
The Offer 
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