---
title: 'Senior Software Engineer, Engine & Distributed Systems at StackAI'
canonical: 'https://feeny.ai/job/senior-software-engineer-engine-distributed-systems-stackai-san-francisco-7190ms27m7p3'
type: 'job'
last_seen: '2026-09-11'
---

# Senior Software Engineer, Engine & Distributed Systems at StackAI

- **Company:** StackAI
- **Location:** San Francisco, CA
- **Compensation:** $202k–$230k
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-06-19
- **Last confirmed live:** 2026-09-11
- **Apply:** https://jobs.ashbyhq.com/stack-ai/963be320-fecb-4095-b73c-a9050b3188f5/application

**Skills:** Python, FastAPI, PostgreSQL, Distributed Systems, Temporal, Cadence, Airflow, Concurrency, Queueing, Retries, Fault Tolerance, Idempotency, State Machines, PydanticAI, LangGraph, Event-driven architectures, Message queues, Tool-calling, Sub-agent orchestration, Streaming

> Stack AI is seeking a Senior Software Engineer to own the durable execution engine for its AI workflow platform. The role involves designing distributed systems for scheduling, concurrency, and failure recovery, ensuring high reliability and scale for long-running AI agents.

## Job description

## About the Company

StackAI (by Asana) is a no-code AI workflow platform that empowers companies to build, deploy, and scale AI-powered workflows easily. With thousands of users and rapidly growing enterprise adoption, our mission is to democratize access to LLMs and bring AI into the hands of every business operator, not just developers. An Asana Company, we're building the foundational platform for the AI-driven future of work

## The role

Enterprises run real work on AI agents, and at StackAI that work runs on a single engine. Some agents finish in a second. Others run for days, fan out into dozens of sub-agents, pause, resume, and recover from failures without losing a step. We're hiring a Senior Software Engineer, Engine & Distributed Systems to own that engine: the durable runtime at the core of the platform that has to be correct every time, at any scale. This is deep systems work at the heart of the product. When the engine is solid, agents simply run — and getting it there is one of the more interesting distributed-systems problems in AI today. You'll own it end to end, from the execution model to how it behaves in production.

## What you'll do

- Own the execution engine. The runtime, scheduling, and sub-agent parallelization that run every agent on the platform.
- Make long-running work durable. Build checkpointing, resumption, and recovery so agents survive failures and restarts and pick up exactly where they left off.
- Shape the execution model. Decide how work is scheduled, queued, and moved from synchronous to asynchronous, so the platform stays correct and responsive as load grows.
- Engineer for scale and reliability. Hold the engine to strict health targets for worker freshness, deploy safety, and drain time, and keep latency and throughput strong as volume grows.
- Keep the engine open to the ecosystem. Make it straightforward to bring new agent harnesses, orchestration frameworks, and model capabilities into the runtime.

## What we're looking for

- 5+ years building backend systems in production, with real depth in distributed systems.
- Hands-on experience with durable execution or workflow orchestration (Temporal, Cadence, or equivalent), with a way of thinking rooted in idempotency, state machines, and failure recovery.
- Strong command of concurrency, queueing, retries, and fault tolerance under load.
- Strong in Python and modern backend frameworks (FastAPI or similar), with sound database fundamentals (Postgres or similar).
- You're drawn to the correctness problems that everything else quietly depends on.

Distributed systems is broad. If you're strong on most of this and excited to grow into the rest, we'd like to hear from you, even if you don't check every box.

Bonus points

- Operating Temporal at scale.
- Event-driven architectures and message queues.
- Experience with PydanticAI, LangGraph, or similar.
- AI or agent runtimes: tool-calling, sub-agent orchestration, streaming.
- Performance and cost optimization of high-throughput backends.
- Startup or growth-stage experience.

## Why StackAI

You'll join a lean, high-impact team and own the engine that every customer's agents run on. Your work ships fast and is felt across the whole product. StackAI is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

## About StackAI

## Company Overview
- **One-liner**: StackAI provides a no-code, enterprise-grade platform for building, deploying, and governing AI agents and workflow automations, trusted by regulated industries like finance, healthcare, and defense.
- **Entity Type**: Private (acquired by Asana in May 2026; continues to operate as its own product and brand)
- **Headquarters**: Cambridge, Massachusetts, United States (also lists San Francisco as a headquarters location)
- **Founded**: 2023
- **Founders**: Tony Rosinol (Co-Founder & CEO) and Bernard Aceituno (Co-Founder & President)

## Core Business
- **Primary Industry**: Enterprise AI platform / Agentic workflow automation
- **Target Customers**: B2B Enterprise – IT, finance, legal, risk/compliance, healthcare, defense, and other regulated organizations
- **Mission/Purpose**: To bring safe, scalable, agentic AI into the world’s most regulated enterprises, enabling teams to automate manual work with security and governance.

## Products & Services
- **[StackAI Platform](https://www.stackai.com/)**: A no-code, drag-and-drop platform for building enterprise AI agents. Key capabilities include:
  - Visual agent builder with 100+ integrations (SAP, SharePoint, ServiceNow, Slack, etc.)
  - LLM-agnostic – deploy the best model for each task
  - One-click RAG pipelines for context-rich responses
  - Export agents as chatbots, forms, APIs, and more
  - Role-based access control, audit logs, PII detection/redaction
  - Deploy anywhere: multi-tenant, VPC, on-premise
  - Compliance certifications: SOC 2 Type II, HIPAA, GDPR, ISO 27001 (in progress)

## Market Standing
- **Valuation**: Not disclosed (acquired by Asana; acquisition terms not publicly announced)
- **Key Metric**: Total funding raised – **$19.5M** (across 3 rounds)
- **Notable Investors/Partners**: Asana (acquirer), Y Combinator, Gradient Ventures (Google AI fund), Epakon Capital, Soma Capital, and others
- **Growth Signals**:
  - Acquired by Asana in May 2026, signaling strong product-market fit and strategic value
  - Employee headcount grew **352.9% YoY** (from ~14 to 64 employees as of mid-2026)
  - Operates in 11 countries; 32 active job postings as of July 2026
  - Customers include YMCA Retirement and LifeMD

## Competitive Advantages
- **Enterprise-Grade Security & Compliance**: SOC 2, HIPAA, GDPR, ISO 27001 (in progress) – certified for handling sensitive data in regulated industries.
- **No-Code + Deep Integrations**: 100+ pre-built connectors (SAP, ServiceNow, SharePoint, etc.) allow non-technical teams to build agents quickly.
- **LLM Agnostic**: Choose the best model per task (Anthropic, OpenAI, Google, etc.), avoiding vendor lock-in.
- **White-Glove Support**: Dedicated AI strategists and forward-deployed engineers assist customers from pilot to scale.
- **Deployment Flexibility**: Multi-tenant, VPC, or on-premise options satisfy strict data residency requirements.

## Strategic Focus
- Post-acquisition by Asana, StackAI will continue operating as its own product while benefiting from Asana’s resources to accelerate feature development and expand use cases.
- Near-term priorities include deeper integration with Asana’s work management platform (shared plans, memory, goals) while maintaining all existing integrations and workflows.
- Hiring push: “doubling our team size in 2026” (from LinkedIn), with roles across engineering, product, and customer success.

## Why Work Here
- **Culture**: Described as “a small dedicated team of insanely talented individuals” that is “user-centric, craft-focused, creative” – ambitious yet pragmatic, moving fast while caring about details.
- **Impact**: Build a category-defining product with strong customer momentum in high-stakes industries (finance, healthcare, defense).
- **Growth**: High headcount growth (352% YoY) and active hiring across 32 roles as of July 2026.
- **Work Environment**: Hybrid/office presence likely (Cambridge and San Francisco offices); remote-friendly given employees in 11 countries.
- **Engineering Culture**: Technical team makes up 51% of workforce; founders are MIT PhDs; strong emphasis on AI, security, and enterprise architecture.

## Sources
1. [stackai.com](https://www.stackai.com/) – Official product and platform information
2. [cbinsights.com](https://www.cbinsights.com/company/stack-ai) – Funding, headquarters, investors, customers
3. [linkedin.com](https://www.linkedin.com/company/stackai) – Employee count, growth, locations, culture
4. [stackai.com/blog/stackai-joins-asana-to-build-the-future-of-agentic-work-management](https://www.stackai.com/blog/stackai-joins-asana-to-build-the-future-of-agentic-work-management) – Acquisition announcement and FAQ
5. [stackai.com/blog/stackai-explained](https://www.stackai.com/blog/stackai-explained) – Detailed feature and security overview

## Other roles at StackAI

- [Senior Software Engineer - Encryption & PHI](https://feeny.ai/job/senior-software-engineer-encryption-phi-stackai-san-francisco-zckvmt1s3rwh) — San Francisco, CA
- [Senior DevOps Engineer](https://feeny.ai/job/senior-devops-engineer-stackai-san-francisco-3ca3vyy24k6j) — San Francisco, CA
- [Lead QA Engineer](https://feeny.ai/job/lead-qa-engineer-stackai-united-states-d54pkfw2tweg) — United States
- [Sales Development Representative (Healthcare)](https://feeny.ai/job/sales-development-representative-healthcare-stackai-new-york-a8rkvqvfe9f9) — New York, NY
- [Solution Engineer](https://feeny.ai/job/solution-engineer-stackai-new-york-wez31d6zj86e) — New York, NY
- [Product Marketing Manager](https://feeny.ai/job/product-marketing-manager-stackai-new-york-pq87q9g20p52) — New York, NY
- [Product Security Engineer](https://feeny.ai/job/product-security-engineer-stackai-warsaw-t96grawx8dr9) — Warsaw, Poland
- [Senior Software Engineer, Identity & Access](https://feeny.ai/job/senior-software-engineer-identity-access-stackai-warsaw-cdnv3axsvx36) — Warsaw, Poland
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