Senior Software Engineer - Channel Processing
At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements.
What this role actually needs.
At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. Requirements: - In this role, you will own and build features/services that hundreds of thousands of Klaviyo customers rely on daily to drive their business forward. - Work on crafting our highly-scalable, highly-available campaign pipeline that processes and delivers hundreds of millions of messages daily growing to billions scale. - Collaborate radically with teams and stakeholders across Klaviyo on designs, implementations, and engineering practices. - Learn new technologies, bring them to the team and apply them to evolve our systems to the next level. - Help us improve our experimentation and development processes, and mentor other engineers on the team. - Participate in the technical interview process to help maintain a high bar for our growing teams Company context: Klaviyo is the public marketing automation and CDP company powering email, SMS, and AI personalization for ecommerce.
What a strong candidate brings
These requirements are extracted from the source listing and normalized for UpJobz readers.
- In this role, you will own and build features/services that hundreds of thousands of Klaviyo customers rely on daily to drive their business forward.
- Work on crafting our highly-scalable, highly-available campaign pipeline that processes and delivers hundreds of millions of messages daily growing to billions scale.
- Collaborate radically with teams and stakeholders across Klaviyo on designs, implementations, and engineering practices.
- Learn new technologies, bring them to the team and apply them to evolve our systems to the next level.
- Help us improve our experimentation and development processes, and mentor other engineers on the team.
- Participate in the technical interview process to help maintain a high bar for our growing teams
Why this listing is more than a copied job post.
Senior Software Engineer - Channel Processing is framed against UpJobz source checks, country scope, compensation visibility, and work-authorization signals so candidates can make a faster go/no-go decision.
United States tech market
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Compensation read
The employer source does not expose a reliable salary range, so candidates should ask for compensation early instead of waiting until late-stage interviews.
Work authorization read
Current extracted signal: Open to TN, H-1B, and OPT candidates already in the United States. UpJobz treats this as a search signal, not legal advice, and links visa-sensitive roles back to the relevant visa hub where possible.
Location read
On-site roles in Boston should be compared against commute, local salary bands, and nearby employer demand.
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Next moves
- Tailor your resume around ai and llm instead of sending a generic application.
- Use the first two bullets of your application to connect your background directly to senior software engineer - channel processing is a high-signal on-site role in boston, and it is most realistic for open to tn, h-1b, and opt candidates already in the united states.
- Open the role quickly if it fits and bookmark three similar jobs before you leave the page.
Interview themes
Watchouts
- Compensation is hidden, so get range clarity in the first recruiter conversation.
- Use open to tn, h-1b, and opt candidates already in the united states as part of your positioning so the recruiter does not have to infer it.
- Show concrete examples of succeeding in on-site environments.
Keywords to match against your background
Use these terms to decide whether your resume, portfolio, and recent projects line up with the role.
Apply through the employer source
Open the source listing from klaviyo.com, confirm the role is still active, then apply on the employer or ATS page.
Source: klaviyo.com · Source ID: 7646799003 · Confidence: 88/100 · Last checked: May 7, 2026
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