Senior Backend Software Engineer

Span
San Francisco, CA
On-site

Who this role is best for

Geared toward senior engineers comfortable with cloud-native infrastructure and event-driven systems, working in San Francisco on mission-driven electrification projects that involve cross-functional collaboration and high-volume data processing.

Best fit for

  • Candidates with 4+ years of backend experience and deep JVM expertise in cloud-native environments
    — “Strong JVM expertise with deep understanding of JVM internals
  • Individuals experienced in building and maintaining large-scale observability platforms
    — “Experience operating observability platforms at scale
  • Engineers with a track record of leading infrastructure design and cross-team coordination
    — “Bridge the Cloud and Platform teams on cross-cutting work involving service deployment
  • Professionals who have worked with Apache Kafka and event-driven architectures
    — “Deep experience with Apache Kafka including topics, consumer groups
  • Candidates with hands-on Kubernetes experience and a focus on networking and deployment architecture
    — “Hands-on Kubernetes experience including debugging workloads, understanding networking

Things to consider

  • A commitment to long-term technical debt management and system maintenance
    — “Maintain and evolve services over time, including planning for scaling
  • The role involves working with a variety of external hardware partners and APIs
    — “Design and build 3rd party cloud-based integrations with a variety of other hardware partners

How to stand out

  • Highlight experience with building APIs for B2B clients and ensuring security and usability
    — “Design APIs and data specifications for internal and external users
  • Showcase leadership in defining and implementing Kubernetes networking standards
    — “Define and drive adoption of Kubernetes networking and observability standards
  • Emphasize work with event-driven systems and high-volume data processing
    — “Build and maintain event-driven systems using Kafka to process high-volume energy monitoring data
  • Demonstrate ability to mentor and collaborate across multiple engineering domains
    — “Mentor and collaborate with team members, sharing knowledge and best practices
  • Showcase experience with IoT or hardware integration in cloud systems
    — “Internet of Things (IoT) products (e.g. AWS IoT, Google Cloud IoT, something homegrown)
Pace · Fast PacedCollaboration · HighAutonomy · HighDecision Impact · TeamLevel · Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • design and develop new features and subsystems
  • lead the design and implementation of systems
  • mentor and collaborate with team members
  • maintain and evolve services over time
Typical background
experience in backend software engineeringexpertise in cloud servicesknowledge of Kubernetes and observability

Skills & requirements

Required

KotlinTypeScriptGrpcREST ApisGraphQLMQTTAPI DesignData ProcessingCloud ServicesKubernetesService NetworkingObservability

Preferred

Distributed SystemsMicroservicesIot

Stack & domain

KotlinTypeScriptGrpcREST ApisGraphQLMQTTAPI DesignData SpecificationsCollaborationMentorshipLeadershipProblem-solvingTeamworkCloud Software EngineeringEnergy MonitoringApisIot DevicesElectrificationRenewable Energy

About the role

Original posting from Span via Ashby

OUR MISSION

SPAN IS ENABLING ELECTRIFICATION FOR ALL ⚡

WE ARE A MISSION-DRIVEN COMPANY DESIGNING, BUILDING, AND DEPLOYING PRODUCTS THAT ELECTRIFY THE BUILT ENVIRONMENT, REDUCE CARBON EMISSIONS, AND SLOW THE EFFECTS OF CLIMATE CHANGE.

  • Decarbonization is the process to reduce or remove greenhouse gas emissions, especially carbon dioxide, from entering our atmosphere.
  • Electrification is the process of replacing fossil fuel appliances that run on gas or oil with all-electric upgrades for a cleaner way to power our lives.

AT SPAN, WE BELIEVE IN:

  • Enabling homes and vehicles powered by clean energy
  • Making electrification upgrades possible
  • Building more resilient homes with reliable backup
  • Designing a flexible and distributed electrical grid

THE ROLE

We are seeking a Senior Backend Software Engineer to join our team building the cloud-based glue that gives our users access to the rich information and controls provided by SPAN Panel, SPAN Drive, and future generations of our products. Our system collects a large volume of energy monitoring data that needs to be stored, processed and exposed in different ways for different end users from homeowners to utility operators. We're also opening up never-before available levels of control of the energy in the home that need to be accessed in secure and easy-to-use APIs.

You’ll join our cloud software engineering team and work with other engineers including data engineering, mobile, web, device software (firmware), and systems software teams. Working with the team, you’ll lead the design and implementation of systems that integrate our hardware, mobile apps, dashboards and external APIs. You'll work with product owners and other engineers to build features from start to finish. You'll bring deep infrastructure expertise to bear as a bridge between the Cloud and Platform teams — shaping Kubernetes strategy, networking architecture, and observability standards alongside building product features.

RESPONSIBILITIES

  • Design and develop new features and subsystems in the SPAN Cloud to support a variety of end users from homeowners, installers, fleet and utility partners.
  • Bridge the Cloud and Platform teams on cross-cutting work involving service deployment, reliability, and infrastructure design.
  • Work cross-functionally with product and design teams to learn about our customers, identify solutions and develop the features that solve their needs
  • Collaborate between firmware, frontend and backend engineers on projects to seamlessly build a cohesive product
  • Work in our Kotlin and TypeScript cloud with gRPC, REST APIs and GraphQL as well as communicating with our IoT devices over MQTT.
  • Design APIs and data specifications for internal and external users, including large-scale B2B enterprise clients.
  • Mentor and collaborate with team members, sharing knowledge and best practices to elevate the entire engineering organization
  • Maintain and evolve services over time, including planning for scaling, major version upgrades, and long-term technical debt management
  • Act as the Cloud team's subject matter expert on Kubernetes, service networking, and observability — advising on architecture decisions and standards.

POTENTIAL PROJECTS

  • Architect and co-ordinate full-stack solutions to enable new panel functionality such as geolocation-specific demand reduction to assist in reducing peak power draw.
  • Design and build 3rd party cloud-based integrations with a variety of other hardware partners
  • Scale our existing cloud and data infrastructure to support SPAN’s growing fleet
  • Build and maintain event-driven systems using Kafka to process high-volume energy monitoring data
  • Define and drive adoption of Kubernetes networking and observability standards (including service mesh and Datadog integration patterns) across the Cloud engineering team.
  • Integrate payment processing systems including app store payments and subscription billing

ABOUT YOU

REQUIRED QUALIFICATIONS

  • 4+ years of experience as a backend engineer with a track record of taking ownership of projects and features.
  • Experience collaborating with engineers from multiple domains to complete projects.
  • Experience with Cloud-native platforms like AWS, GCP, Azure (we use AWS).
  • Experience collaborating with coworkers in shared code base using industry standard tools and processes including version control, type systems, linting and unit testing
  • Understanding engineering principles and processes to design robust, scalable and resilient systems
  • 4+ years of professional experience in a common backend programming language and a desire to work with Kotlin, TypeScript, and Python
  • Strong JVM expertise with deep understanding of JVM internals, performance tuning, and memory management with proven track record of maintaining services over time, including planning for scaling, major version upgrades, and managing technical debt
  • Deep experience with Apache Kafka including topics, consumer groups, stream processing, and event-driven architectures
  • Hands-on Kubernetes experience including debugging workloads, understanding networking (DNS, ingress, service mesh), and advising on deployment architecture.
  • Experience operating observability platforms at scale (Datadog or equivalent) — dashboards, alerting, distributed tracing, and incident response.

BONUS QUALIFICATIONS

We would love to hire someone with experience working in one or more of the following areas:

  • Internet of Things (IoT) products (e.g. AWS IoT, Google Cloud IoT, something homegrown) or other hardware component A variety of different datastores (e.g. SQL and noSQL, key-value stores, document stores)
  • gRPC or GraphQL APIs.
  • Products with a rich mobile app
  • Infrastructure as code tools like Pulumi or Terraform etc.
  • Familiarity with Data Engineering technologies such as Flink and Spark
  • Experience with service mesh technologies (Istio or equivalent)
  • Spring Boot or Micronaut framework experience
  • App store payments or Stripe billing integration
  • B2B enterprise APIs and partner integrations
  • Experience with tenant isolation patterns (inside a broader multi-tenant architecture)

LIFE AT SPAN

Headquartered in San Francisco’s vibrant SoMa neighborhood, we are an eclectic group of creative thinkers who value open communication, teamwork, and a ‘make it happen’ approach to addressing complex challenges.

SPAN embraces diversity and equal opportunity in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills.

We’re hiring talented individuals who are driven by success and are passionate about shaping the future of renewable energy. If that sounds like you, we’d love for you to consider joining the rapidly growing team at SPAN.

THE PERKS:

⚡ Competitive compensation + equity grants at a well-funded, venture-backed company

⚡ Comprehensive benefits: 100% employee premiums for base plans on medical, dental, vision with options for additional coverage. Parental leave up to twenty four (24) weeks depending on eligibility

⚡ Comfortable, sunny office space located near BART and Caltrain public transit

⚡ Strong focus on team building and company culture: Employee Resource Groups, monthly social events, SPANcakes recognition breakfast, lunch, and learns

⚡ Flexible hours, one holiday per month, and flexible time off

Interested in joining our team? Apply today and we’ll be in touch with the next steps!

Source: Span careers (Ashby)

Similar roles