Senior Software Engineer

Reports To: CTO
Location:
San Francisco, CA

At Symbium
, we’re on a mission to streamline how citizens interact with local government and cut through the red tape in permitting processes. Imagine a world where homeowners and contractors can effortlessly navigate complex regulations, instantly determine what projects are possible on their property, and secure approvals with the click of a button.
Symbium is making that world a reality. By transforming dense rules into user-friendly software, we empower people to get work done without frustration and delay.

Symbium’s proprietary computational law (Complaw®) technology – initially developed at Stanford’s AI Lab – performs permit compliance checks in real time, enabling instant permit approvals
. Symbium is currently partnered with 270+ cities – and growing fast. Our platform accelerates clean energy adoption by simplifying approvals for installations of solar panels, reroofing, and EV chargers to heat pumps and beyond. This streamlined process helps communities transition more quickly to decarbonization and energy independence
.

Symbium is looking for a Senior Software Engineer who can take ownership of major technical initiatives, work across the stack, and help drive the evolution of our platform.
While this role is primarily an individual contributor position, it also provides meaningful opportunities to lead onboarding, guide teammates, shape engineering practices, and support the growth of the engineering team as Symbium scales.

This role is ideal for someone who thrives in hands‑on technical work, enjoys building foundational systems, and wants room to influence both product direction and engineering culture without stepping away from writing software.

You’ll tackle challenging technical problems (think translating law into code!), collaborate with a passionate team, and expand your engineering skills in a supportive environment. If you love the idea of using technology to disrupt the status quo and make a positive impact on society, you’ll thrive in this role.

• Build and own core systems
  • Lead the execution of Symbium’s AI roadmap, ensuring determinism and accuracy in mission-critical workloads while balancing these requirements with the practical development of scalable, production-ready AI features.
  • Build and maintain robust workflows, APIs, integrations, and backend systems in support of large-scale, high-reliability permitting functions.
  • Architect, design, and build scalable, maintainable, and performant platform components.
  • Lead end-to-end implementation of features – from design and development to deployment, monitoring, and iteration.
  • Drive high engineering quality through strong practices in testing, code quality, observability, and data modeling.
• Shape technical direction
  • Influence architectural decisions, tooling choices, and engineering standards across the team.
  • Contribute to documentation, engineering standards, and knowledge-sharing practices that strengthen team efficiency and alignment.
  • Work with senior leadership to shape engineering priorities, technical strategy, and continuous improvements to development processes.
• Strengthen engineering practices
  • Provide thoughtful code reviews, design feedback, and peer mentorship (no people management responsibilities).
  • Onboard new engineers by helping them understand our systems, tools, workflows, and architectural principles.
• Drive alignment across teams
  • Work directly with product managers, designers, policy experts, customers, and other stakeholders to clarify requirements and shape solutions.
  • Represent engineering considerations in cross-functional discussions, ensuring that technical…