Lead Engineer (multiple)

Boston, MA

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. If you’re a close but not exact match with the description, we hope you’ll still consider applying.

Design, develop, and implement software features to support Klaviyo’s intelligent marketing automation platform. Serve as the Technical Product Owner (TPO) of editor features and functions on proprietary marketing automation platform. Analyze support issues and identify bugs for fixing. Faciliate transfer of users from classic to new technologies. Implement new hybrid experiences on our new editor technology. Convert
user hybrid templates from classic editor to new editor. Implement optimizations on MJML server to reduce system exits and other errors. Create documents iterating the team capabilities to analyze and optimize team performance and coordination. Mentor teammates through weekly meetings. Review team technical specifications. Telecommuting permitted 2 days per week. Multiple positions. Full-time. EEO/fully supports affirmative action practices. To apply, visit https://careers.klaviyo.com/en/ & search Job Title.  Minimum Requirements: Master's degree in Computer Science, Information Systems, Information Technology, or a related field of study and two (2) years of experience in job offered, or as a Software Developer, Software Engineer, or a related occupation.   Alternatively, a bachelor's degree in an acceptable field of study and five (5) years of acceptable experience.


We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey here

Get to Know Klaviyo

We’re Klaviyo (pronounced clay-vee-oh). We empower creators to own their destiny by making first-party data accessible and actionable like never before. We see limitless potential for the technology we’re developing to nurture personalized experiences in ecommerce and beyond. To reach our goals, we need our own crew of remarkable creators—ambitious and collaborative teammates who stay focused on our north star: delighting our customers. If you’re ready to do the best work of your career, where you’ll be welcomed as your whole self from day one and supported with generous benefits, we hope you’ll join us.

Klaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.

IMPORTANT NOTICE: Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process. All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses (@klaviyo.com), instant messaging platforms, or unsolicited calls. You can find our Job Applicant Privacy Notice here.
 
By clicking "Submit Application" you consent to Klaviyo processing your Personal Data in accordance with our Job Applicant Privacy Notice.  If you do not wish for Klaviyo to process your Personal Data, please do not submit an application. You can find our Job Applicant Privacy Notice here.

Apply for this job

*

indicates a required field

Resume/CV*

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

Accepted file types: pdf, doc, docx, txt, rtf

Education

Select...
Select...
Select...
Select...
Which of the following do you have experience with *

Select all that apply

Select...

*For purposes of these questions, please note that "sponsorship for employment visa status” means an F-1 Form I-983 Training Plan endorsement, F-1 I-20 endorsement, H-1B visa petition, H-1B visa transfer, O-1 visa petition, E-3 visa petition, TN status,  and 'job flexibility benefits' (also known as I-140 portability or Adjustment of Status portability). Please ask us if you are uncertain whether you may need immigration sponsorship or desire clarification.

Select...

US Voluntary Demographic Questionnaire

At Klaviyo, we strive to make the world more equitable - it's one of our core values. Klaviyos (our employees) believe that everyone deserves a fair shot at success. We strive to be a diverse company, where we seek opinions and experiences different from our own. Individuals seeking employment at Klaviyo are considered without regard to race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.

Please note that any information you provide in the following questions will be kept confidential, will not be associated with your application and will not impact your recruiting process. All information will be anonymized and reviewed quarterly, strictly in aggregate, to find ways to improve our recruiting processes. Self-identification is completely voluntary. To learn more about our job applicant privacy policy, please visit our website.

Select...
Select...
Select...
Select...