Senior Engineer - Growth Marketing

Join our Marketing team and help Buffer reach millions of creators worldwide and build systems that power our Growth efforts

Role details

Location: Remote Employment type: Full time Department: Engineering Compensation: $156.5K – $202.3K • Offers Equity We strive for Buffer’s approach to salary, equity, and benefits to be:

Transparent
Fair
Simple
Generous

Read more about our compensation philosophies and approach.

Role description

About Buffer

We create social media and brand-building software for small businesses, creators, and individuals. Our mission is to provide essential tools to help small businesses get off the ground and grow. Through exceptional customer service and uplifting content, we help our customers believe they can succeed and do good along the way. Buffer is a fully distributed team, and we’ve always aimed to do things a little differently at Buffer. Since the early days, we’ve focused on building one of the most unique and fulfilling workplaces by rethinking a lot of traditional practices. We also default to transparency, so you can read all about our metrics, and our successes and failures along the way on our Transparency Dashboard. We're united by Buffer's values, and we hire and work from all over the world. We strive to create a diverse and inclusive work environment, and we are building a culture where underrepresented groups are welcome and can flourish. Please note that we do travel to work together in person once or twice per year, and those events are highly encouraged to build deeper connections among our small team. As you get to know Buffer and consider joining the journey, feel free to read more from Kirsti and Sabreen as they share their first experiences with Buffer, as well as from Hailley, who captured why she still calls Buffer home after 8+ years.

About the role

We're looking for a Senior Frontend Engineer to join our Growth Marketing team. This is a hands-on engineering role building the web experiences and systems that help Buffer grow. The work spans building features and pages across buffer.com - interactive tools, benchmarks, referral systems, conversion flows - along with the technical implementation behind them: integrations with marketing tools, analytics and tracking systems, SEO implementations, and backend logic that powers our marketing features. We need someone who's comfortable across the full frontend scope - strong with React and modern web development, but also capable of diving into backend logic, connecting third-party APIs, debugging tracking pipelines, and figuring out what they don't know. You'll collaborate closely with Simon (Director of Marketing), David (Senior Design Engineer), and Kate (Senior Designer). The team values pace and iteration — we ship quickly, learn from real usage, and improve as we go. But we also care about craft — noticing the UX details and maintaining standards while keeping momentum.

What you’ll do

Lead growth engineering projects, like implementing a localization framework to support international audiences, building referral program logic and attribution systems, rebuilding our tracking implementation to improve accuracy and reliability. You’ll own projects from concept to launch, working closely with marketing, design,

and other engineers.

Build features on Buffer's marketing site — ship landing pages,

interactive tools, and conversion flows that help people discover a nd try Buffer. Create benchmarks, calculators, and utility content that educate users a nd drive engagement.

Shape marketing platform capabilities by building systems

a nd frameworks that let the team move faster. Create A/B testing infrastructure, develop programmatic page generation for SEO/AEO, implement content management patterns, and build reusable components that make future projects easier to ship.

Drive experimentation

a nd optimization — implement A/B tests, optimize conversion funnels, and help the team learn faster through code. Set up experiments, validate results, and iterate based on what we learn. Balance moving quickly with maintaining quality.

Improve foundations by maintaining integrations with our marketing technology stack (Segment,

GTM, Mixpanel, BigQuery), upgrading dependencies, optimizing performance, and ensuring accessibility. You'll also participate in our on-call rotation a nd contribute to ongoing system health — fixing bugs, ad dressing security vulnerabilities, and other improvements that keep buffer.com running smoothly.

Contribute to shaping engineering culture by pairing with other engineers,

reviewing code, sharing knowledge about growth systems a nd marketing engineering patterns, and helping level up how we approach frontend work at Buffer.

Helpful skills

a nd experience

You have strong frontend foundations — solid experience with React,

TypeScript, and modern web development. Our site runs on Next.js but we value adaptability a nd curiosity over specific stack experience.

You're comfortable working across the stack when needed — writing backend logic,

building API routes,get ting data from various external systems,and connecting third-party integrations together.

You've worked with marketing or growth teams; comfortable with SEO analytics A/B testing conversion optimization; likely built referral systems programmatic pages or conversion funnels; know how to set up tracking validate implementations measure impact accurately.
You're comfortable navigating ambiguity thinking in systems — bring clarity ask good questions move ideas forward even when requirements aren't fully defined; look at full system understanding how different technologies goals connect; build things scale improve holistically rather than just solving point problems.
You have personal stake in content creation world; maybe run newsletter built audience social media regularly share own work online; used Buffer before care about planning creating publishing content experience.
You balance craft pace — ship quickly learn from real usage but care about quality; notice UX details maintain accessibility standards think about performance understand when polish versus iterate.
You thrive in remote async environments — communicate clearly support teammates don't wait permission make progress; work effectively across marketing design engineering explain technical decisions non-technical stakeholders.
You're fluent with AI tools use them work leverage improve efficiency; bonus points if integrated AI user-facing marketing features scale (like generating personalized content automating asset creation building intelligent systems).
Likely 5+ years experience but depth impact matter more than specific number years.

Our tech stack

Next.js v15+ with React TypeScript for buffer.com (currently using Pages router planning migrate App router).
Express middleware for some routing (planning migrate Next.js middleware).
Styling CSS Modules Motion animations Radix UI Base UI accessible components (gradually migrating Base UI) data visualizations using Recharts.
Marketing technology stack includes Segment Google Tag Manager Mixpanel BigQuery tracking analytics.
Pull content data from Ghost CMS (blog) Redash Notion Google Sheets various external APIs.

Interview process

Application: Submit application resume tell why want join Buffer take time make strong first impression. Apply only one role recommended.

2. Role interview: Chat hiring manager peer engineer understand what takes work at Buffer opportunity both sides get know each other determine expectations align. 3. Code review assignment: Asynchronous assignment review pull request understand how think code communicate technical ideas.

Technical interviews: Interview couple engineers focus technical experience approach senior roles additional conversation leadership teamwork broader challenges level.

Meet CEO: Opportunity meet Joel Gascoigne CEO gain deeper understanding Buffer strategy values work processes.

6. Collaboration period: Experimental stage work real project 2 days fully paid meet bufferoos kickoff project invite Slack collaborate team.