Senior Staff Software Engineer

Role Description

We are seeking a Senior Staff Software Engineer to lead the architecture and evolution of the core systems that power Juniper Square — the distributed services, cloud infrastructure, and developer platform on which every product, workflow, and AI capability is built. You will define the vision, architecture, operating model, and execution roadmap required to evolve from team-by-team infrastructure decisions to a cohesive, paved-road platform that enables every engineering team to ship reliable, secure, and performant software at speed.

This role anchors a strategic priority for our GPX line of business: taking Juniper Square upmarket to serve the largest private equity institutions in the world — firms managing $100B+ in AUM. Serving these PE titans demands a step-change in everything our systems do:

• Order of magnitude increase in data and traffic volumes
• Enterprise-grade security and integration expectations

You will architect the systems foundation that makes this scalable. This is a deeply hands-on leadership role for a technical expert who leads by building: you will actively design systems, prototype solutions, write and review code, and guide teams through their most complex technical challenges.

Your mandate spans the full systems estate:

• Modernize our service architecture and cloud foundation
• Define architecture across compute, networking, service communication, multi-tenancy, and observability
• Build the systems substrate — including the infrastructure powering JunieAI and agentic workloads

You will work closely with engineering leadership, product teams, security, and executive stakeholders to align technology strategy with business outcomes, mentor engineers, and build a culture of operational excellence. Success in this role means not only delivering a modern systems platform but also elevating the team's capabilities, processes, and ways of working to operate as a true platform engineering organization.

While this is a remote role, some travel is required — to in-person leadership meetups, team offsites, and to customer sites in support of enterprise engagements where deep technical presence matters.

Qualifications

• Advanced degree in Computer Science, Engineering, or related field
• 15+ years in distributed systems, platform engineering, or infrastructure roles
• Proven experience architecting large-scale, high-availability multi-tenant distributed systems in production
• Strong hands-on experience with modern cloud-native stacks (Kubernetes, containers, service mesh, serverless)
• Deep expertise in distributed systems fundamentals: consistency models, consensus, partitioning, idempotency, backpressure, and failure modes
• Advanced proficiency in Python, Go, Java, or similar; strong systems-level debugging skills
• Expertise in infrastructure as code (Terraform, Pulumi, or similar) and modern CI/CD
• Experience designing event-driven and streaming architectures (Kafka or similar)
• Experience building developer platforms, internal tooling, or paved-road infrastructure at scale
• Strong understanding of observability practices and SRE principles (SLOs, error budgets, incident management)
• Hands-on experience with AWS, Azure, or GCP at production scale
• Strong understanding of infrastructure security, multi-tenancy, and compliance best practices
• Ability to operate at both executive and deeply technical levels

Requirements

• Experience taking a SaaS platform upmarket to serve large enterprise or institutional customers
• Background in private markets, fund accounting, or fintech systems with complex financial domain models
• Experience building infrastructure for AI/LLM workloads: inference serving, agent runtimes, GPU scheduling, or evaluation systems
• Background in high-growth SaaS, fintech, or other regulated, data-sensitive environments
• Experience with large-scale cloud cost optimization
• Experience scaling relational databases (PostgreSQL or similar) under high concurrency

Benefits

• Health, dental, and vision care for you and your family
• Life insurance
• Mental wellness coverage
• Fertility and growing family support
• Flex Time Off in addition to company-paid holidays
• Paid family leave, medical leave, and bereavement leave policies
• Retirement saving plans
• Allowance to customize your work and technology setup at home
• Annual professional development stipend