✦ Luna Orbit — Software Engineering

Staff Software Engineer, Payer

at Headway

📍 Remote - New York; San Francisco, California, United States; Seattle, Washington, United States Remote Posted April 03, 2026
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Position Details

Type Full-Time
Experience lead
Exp. Years 7+ years
Education Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
Category Software Engineering

About this role

Staff Engineer at SoFi Bank leading core banking platform development for SEN, focusing on real-time settlement and scalable, auditable systems.

Key Responsibilities

  • Architect and build SEN core systems
  • Lead cross-team technical direction
  • Define API contracts and governance
  • Drive reliability and production readiness
  • Mentor engineers and shape technical roadmap

Technical Overview

Deep distributed systems expertise with JVM stacks (Kotlin/Java), Kubernetes, AWS/GCP, Terraform, API design, and experience with workflow orchestration (Temporal, Cadence, Step Functions) and event-driven architectures (Kafka).

Ideal Candidate

The ideal candidate is a senior staff engineer with 7+ years in backend development, strong experience with JVM-inspired stacks (Kotlin/Java) and modern infrastructure (Kubernetes, AWS, Terraform). They should excel at architecting scalable, provider-facing systems and mentoring engineers across multiple teams.

Must-Have Skills

7+ years software engineering experienceHands-on experience with Python 3Hands-on experience with TypeScriptExperience with FastAPIExperience with ReactExperience with AWS (FargateECSS3)Experience with SparkExperience with KafkaExperience designing and scaling ML/LLM-powered systems in productionBachelor's degree in Computer Science or related field

Nice-to-Have Skills

Healthcare/payors domainDeveloper experience tooling (API gatewayssandbox environments)

Tools & Platforms

FastAPIReactRemixNext.jsAmazon Web ServicesAWSSparkKafkaDatadogPagerDutySentryGithub

Required Skills

7+ years software engineering experienceJVM-based stacks (Kotlin or Java) with Spring BootKubernetesAWS/GCPTerraformCI/CD pipelinesAPI designStateful workflows (TemporalCadenceStep Functions)Event-driven architectures (Kafka)Social: data modelingSQL/PostgreSQL

Hard Skills

Python 3TypeScriptFastAPIReactRemixNext.jsAmazon Web ServicesAWSSparkKafkaDatadogPagerDutySentryGitHubAWS FargateECSS3

Soft Skills

LeadershipMentoringCollaborationProblem-solvingCommunicationOwnershipCross-functional teamwork

Industry & Role

Industry SaaS
Job Function Own the technical side of the Commercial Banking core systems for SoFi
Role Subtype Staff Engineer
Tech Domains Python, JavaScript, Amazon Web Services, Google Cloud Platform, Kafka, Spark, APIs

Keywords for Your Resume

Staff Software EngineerPayerPython 3TypeScriptFastAPIReactRemixNext.jsAWSAmazon Web ServicesSparkKafkaDatadogPagerDutySentryGitHubKubernetesFargateECSS3ML/LLM-powered systemsAPIsCI/CD pipelinesTemporalCadenceStep FunctionsPython

Deal Breakers

7+ years of software engineering experience, Hands-on JVM-based stack (Java/Kotlin) experience, Kubernetes and AWS/GCP experience, Terraform and CI/CD pipelines experience, Strong API design experience

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