Senior Software Development Engineer in Test

Stord; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Stord is seeking a Software Engineer in Test to build scalable automated testing infrastructure. You will own E2E, API, and load testing across platforms, partnering with engineers and product managers to embed high-quality automation into CI workflows.

Ideal candidates have Playwright or similar frameworks, strong scripting skills (JavaScript/TypeScript or Python), and experience with API testing and performance testing. This is a hands-on role shaping modern QA at scale.

Qualifications

• You’ve built and maintained production E2E suites (Playwright or equivalent).
• CI/CD integration with release gates that block bad merges.
• Proficiency in JavaScript/TypeScript or Python for test automation.
• Hands-on experience with API/contract testing tools (Pact) or API testing tools (Postman).
• Experience with load testing tools (k6, Locust).
• You use AI coding tools productively while applying your own judgment.
• You script tooling from the terminal, not GUI recorders.

Responsibilities

• Build and maintain scripts across the test pyramid: API, integration, E2E and load tests.
• Partner with PMs to translate critical flows into automated coverage
• Develop Playwright-based E2E suites for golden-path journeys
• Integrate test suites into GitHub Actions CI and gate releases on coverage
• Own suite health metrics and drive reliability as coverage grows
• Create AI-assisted tooling to generate test plans from acceptance criteria
• Maintain a regression and coverage infrastructure for critical paths
• Define load and performance test frameworks with engineering partners

Skills

Ownership

Communication

Collaboration

Production mindset

Learning agility

AI-assisted testing

CLI proficiency

Tools

Playwright

GitHub Actions

Postman

Pact

k6

Locust

JavaScript

Python

Job description

About Stord Stord is The Consumer Experience Company, powering seamless checkout through delivery for today's leading brands. Stord is rapidly growing and strategically scaling teams across the entire company, and seeking energetic experts to help us achieve our mission.

About Stord Stord is The Consumer Experience Company, powering seamless checkout through delivery for today's leading brands. Stord is rapidly growing and strategically scaling teams across the entire company, and seeking energetic experts to help us achieve our mission. By combining comprehensive commerce-enablement technology with high-volume fulfillment services, Stord provides brands a platform to compete with retail giants. Stord manages over $10 billion of commerce annually through its fulfillment, warehousing, transportation, and operator-built software suite including OMS, Pre- and Post-Purchase, and WMS platforms. Stord is leveling the playing field for all brands to deliver the best consumer experience at scale. With Stord, brands can increase cart conversion, improve unit economics, and drive sustained customer loyalty. Stord’s end-to-end commerce solutions combine best-in-class omnichannel fulfillment and shipping with leading technology to ensure fast shipping, reliable delivery promises, easy access to more channels, and improved margins on every order. Hundreds of leading DTC and B2B companies like True Classic, Native, Seed Health, goodr, Sundays for Dogs, and more trust Stord to deliver industry-leading consumer experiences on every order. Stord is headquartered in Atlanta with facilities across the United States, Canada, and Europe. Stord is backed by top-tier investors including Kleiner Perkins, Franklin Templeton, Founders Fund, Strike Capital, Baillie Gifford, and Salesforce Ventures. Stord is building the operating system for the modern supply chain — a unified platform handling Order Management, Warehouse Management, Transportation, and Consumer Experience for brands doing over $10B in commerce annually. We’re standing up a net-new Software Engineer in Test (SET) function — not to take quality ownership away from engineering, but to build the automation infrastructure that enables engineering teams to execute on ownership at scale. Today, E2E coverage, regression testing, API/contract testing, and performance testing all have inconsistent or no systematic owner or methodology — engineers patch these gaps ad hoc, on top of their feature work. This role sits embedded within [Product Group], partnering directly with engineers and EMs who remain accountable for coverage, CI gates, and test strategy. You build the frameworks and AI-assisted tooling that make that accountability sustainable at scale. This role is for an engineer who thinks about testing as a systems-building problem, not a checklist. You’d rather write the automation that catches a regression before a human ever sees it than manually re-verify a happy-path scenario on every release. If you want to build test infrastructure from the ground up, with real budget and executive sponsorship behind it, this role gives you the mandate to do exactly that.

Why This Role

Your work directly affects release velocity and confidence for a large-scale, high-growth platform. By assisting in the development of net-new frameworks and tests, you’ll directly impact the Engineering organization’s long-term ability to meet high standards in customer satisfaction. AI‑assistant test generation — turning acceptance criteria into automated scripts — is a live, unsolved problem here, not a vendor tool you’re asked to babysit. You’ll take a cutting edge approach to automated testing in the 21st century and be encouraged to cultivate and sharpen those skills. You work alongside a SET Lead defining cross‑org framework standards from day one, so you’re shaping how quality standards and methodologies land in practice, not just inheriting a rulebook. You’re closing gaps across the entire test pyramid — E2E, regression, contract testing, performance testing — that Stord’s own testing charter explicitly flags as unowned today.

What You’ll Build

Full‑Suite Test Automation

• Build and maintain scripts across every layer of the test pyramid: API, integration, end‑to‑end and load tests.
• Partner with PMs to convert their most critical smoke suite user flows into automated coverage
• Build Playwright‑based E2E suites covering [Product Group]’s golden‑path user journeys
• Wire test suites into GitHub Actions CI, gating releases on passing coverage
• Own suite health standards and outcomes — flake reduction, runtime, and reliability as coverage grows

AI‑Assisted Workflow Optimization

• Build and refine tooling that turns acceptance criteria and user stories into test plans and automated test scripts
• Evaluate and integrate AI‑assisted test generation tools into the team’s day‑to‑day workflow
• Cut the manual effort required to interpret execution results, validate outcomes, triage suites, and keep coverage current as product ships features

Regression & Coverage Infrastructure

• Build and maintain a regression test register mapping critical paths to automated coverage
• Wire coverage reporting into a shared dashboard and keep the dashboard accurate as coverage expands

Load & Performance Testing

• Build load and performance test frameworks that engineers can employ in a variety of applications
• Partner with engineers to define and validate performance thresholds before release
• Ensure critical services are load‑ and soak‑tested ahead of peak season

Experience We’re Looking For

Required

• Test automation frameworks — You’ve built and maintained production E2E suites (Playwright or equivalent), not just written individual test cases.
• CI/CD integration — You can wire test suites into GitHub Actions (or equivalent) and configure release gates that actually block bad merges.
• Programming proficiency — JavaScript/TypeScript, Python, or similar. You write test automation as real software: structured, reusable, maintainable.
• API/contract testing — Hands‑on experience with contract test tooling (e.g. Pact) or API test tooling (e.g. Postman).
• Load/performance testing — Experience with load testing tools (e.g. k6, Locust) or equivalent.
• Directed AI‑assisted development — You use AI coding tools as a productivity multiplier while keeping your own technical judgment in the loop.
• CLI‑native workflow — You operate primarily from the terminal and script your own tooling rather than relying on GUI test recorders.

Required Soft Skills

• Ownership & Accountability — You own features end‑to‑end and take pride in what you ship. You follow through from design to production and don’t drop things.
• Strong Communication — You can explain technical decisions and trade‑offs to engineers, PMs, and stakeholders. You ask good questions and listen well.
• Collaborative Approach — You work well with others, give constructive code review feedback, and actively seek input from teammates.
• Production Mindset — You prioritize reliability and user impact. You think about failure modes, monitoring, and operational concerns as part of your design process.
• Learning Agility — You’re comfortable with rapidly evolving AI/ML technologies and tools. You stay current without chasing hype.

Strongly Preferred

• Experience building a test automation function from scratch, not just extending an existing one
• Experience partnering directly with PMs on acceptance criteria and Golden Path journey definition
• Familiarity with coverage tooling and using coverage data to prioritize test investment
• Hands‑on exposure to AI‑assisted test generation tooling specifically, not just general‑purpose AI coding assistants

Nice to Have

• Experience in e‑commerce, logistics, or supply‑chain domains
• Familiarity with [Shopify / WMS‑TMS / billing systems]
• Experience with security/dependency scanning tools in CI

What Success Looks Like

30 days: Has audited existing test coverage against [Product Group]’s happy‑path / sad‑path scenarios, identified the top gaps, provided a test plan, and shipped at least one new automated test into CI.

90 days: Regression test register live and passing threshold criteria is gating releases; contract/API test tooling in place for at least one major service boundary; AI‑assistant test generation piloted with at least one team.

6 months: Load/performance test framework in active use by engineers on applicable stories; [Product Group]’s release process clears Stord’s Definition of Done quality gates without manual rework surfacing at UAT.