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Flex

Staff Software Engineer, Fullstack-MarTech

Flex · New York, NY; San Francisco, CA; USA

Posted 28 days ago

or apply directly on Flex's site. We never take the application ourselves.

Is this posting real?

This role has been open
28 days
Flex's roles stay open a median of 45 days
Reposted
No
Salary listed
No
8% of Flex's roles list one
Ghost-job risk at Flex
high
29 stale, 0 reposted of 49 open
Hiring momentum
71 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Flex's own greenhouse board since 2026-08-03. Full hiring picture for Flex.

About this role

As a Staff Software Engineer on the MarTech team at Flex, you will lead the development of platforms and services that enhance customer acquisition and retention through marketing technology. Your responsibilities will include building full-stack marketing services, designing high-scale APIs, and collaborating with cross-functional teams to launch features. You will also work on projects related to customer-facing web experiences, event-driven services, and data pipelines.

Our read on this posting3.0out of 5
benefits
3/5
freshness
4/5
career value
4/5
role clarity
4/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Flex as an employer.

What you need

  • 8+ years of professional software development experience
  • 6+ years of hands-on experience with Java
  • 3+ years of experience with TypeScript
  • 3+ years of experience with React (or React Native)
  • Excellent written and verbal communication skills
  • Proven experience building high-quality, high-performance web and mobile UIs

Nice to have

  • Experience on a growth, marketing engineering, or MarTech team
  • Hands-on experience with platforms such as Braze, Google Tag Manager, or Amplitude
  • Familiarity with attribution, identity resolution, and conversion tracking
  • Experience with A/B testing and experimentation frameworks
  • Experience with big data platforms and tooling

What you get

  • Competitive medical, dental, and vision
  • Company equity
  • 401(k) plan with company match
  • Unlimited paid time off + 13 company paid holidays
  • Parental leave
  • Free Flex subscription

Worth weighing

  • Compensation varies significantly based on geographic location
  • Hybrid work model requires 2-3 days on-site per week in local offices
  • No specific mention of career advancement opportunities or training programs

Summarised from Flex's posting. Read the full original.

Listed by Flex on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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