Talent.com
Software Engineer II - Editors
Software Engineer II - EditorsKlaviyo • Boston, MA, US
Software Engineer II - Editors

Software Engineer II - Editors

Klaviyo • Boston, MA, US
[job_card.1_day_ago]
[job_preview.job_type]
  • [job_card.full_time]
[job_card.job_description]

Job Description

Job Description

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. Want to learn more about life at Klaviyo? Visit careers.klaviyo.com to see how we empower creators to own their own destiny.

Why You Should Join the Editors Team :

The Editors team is responsible for building common reusable components for the message editor. This team powers all the editors at Klaviyo. This team focuses on building intuitive and powerful interfaces to create highly customizable and dynamic content ranging from product feeds, real time event data, and more. This product area is core to Klaviyo's continued success.

As a Software Engineer II on the team, you'll play a key role in designing and building scalable systems that power our editor experiences across all the editors. Partnering closely with product managers and technical product owners, you'll help define scope, translate ideas into practical implementations, and build intuitive editing tools that delight our users. This role leans frontend, with a strong focus on crafting thoughtful, reusable components and seamless user experiences using technologies like TypeScript, React, Python, and Django. There are ample opportunities for growth given the scope of this role and the team's central role in Klaviyo's product.

Over the past year, our team has enhanced the editor interfaces with impactful features that our customers love—and they're eager to see that same power brought to other mobile experiences. Looking ahead, we'll be investing in new editor blocks, a personalization builder, in-canvas editing, and content generation powered by AI. You'll contribute directly to these efforts, helping Klaviyo extend its best-in-class editing tools across platforms.

How You Will Make a Difference :

  • You will be a core member of the Editors team, working on impactful customer-facing features that will make our product the best in the industry.
  • You will work on creating easy-to-use editors that are highly performant.
  • You will work closely with Product, Design, and Data Science to provide the best experience for our customers.

Who You Are :

  • Experienced in full-stack development with strong hands-on skills in React, Redux, JavaScript, HTML, and CSS, along with familiarity with general web best practices.
  • Has a track record of delivering and shipping work powered by or accelerated through AI.
  • 3+ years of experience in a software engineering role
  • Proficient in Python and Django (or similar backend technologies), and comfortable working across large codebases and multiple layers of the stack.
  • Familiar with automated testing practices and frameworks, including end-to-end and integration tests (e.g., cypress, pytest).
  • Experienced with RESTful and GraphQL APIs, and evolving APIs and data models to support product success.
  • You take ownership of your work—from requirements and edge cases to implementation and testing—and are motivated by solving tough problems with others.
  • Proven track record of leading complex, multi-quarter projects involving cross-team collaboration.
  • You know when to reach for tools like queues, caches, CDNs, and web workers to solve performance and scaling challenges.
  • Collaborative, communicative, and eager to learn and share knowledge.
  • Technologies We Use (not exhaustive) :

  • React, TypeScript, Redux
  • Python, Django
  • MySQL, RabbitMQ, Redis, ProxySQL
  • Amazon Web Services (EC2, RDS, Aurora, etc.), Terraform, and other DevOps tools
  • Location :

    This is a hybrid role based in Boston , with 3 days in office and 2 days remote per week.

    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

    Massachusetts Applicants :

    It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

    Our salary range reflects the cost of labor across various U.S. geographic markets. The range displayed below reflects the minimum and maximum target salaries for the position across all our US locations. The base salary offered for this position is determined by several factors, including the applicant's job-related skills, relevant experience, education or training, and work location.

    In addition to base salary, our total compensation package may include participation in the company's annual cash bonus plan, variable compensation (OTE) for sales and customer success roles, equity, sign-on payments, and a comprehensive range of health, welfare, and wellbeing benefits based on eligibility.

    Your recruiter can provide more details about the specific salary / OTE range for your preferred location during the hiring process.

    Base Pay Range For US Locations :

    $120,000—$180,000 USD

    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.

    AI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop). We provide accommodations as needed.

    By participating in Klaviyo's interview process, you acknowledge that you have read, understood, and will adhere to our Guidelines for using AI in the Klaviyo interview Process. For more information about how we process your personal data, see our Job Applicant Privacy Notice.

    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.

    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 and here (FR).

    [job_alerts.create_a_job]

    Software Engineer Ii • Boston, MA, US

    [internal_linking.related_jobs]
    Senior Software Engineer II

    Senior Software Engineer II

    Cleo • Boston, MA, United States
    [job_card.full_time]
    Design and develop full-stack components which are part of Cleo’s overall code base; Typescript, Angular, Node.Ability to explain complex technical and functional concepts effectively.Be a trusted ...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Writing Editor - Flexible

    Writing Editor - Flexible

    Outlier • Remote, MA, United States
    [filters.remote]
    [job_card.full_time]
    Earn up to $16 USD / hourly and work remotely and flexibly.Outlier, a platform owned and operated by Scale AI, is looking for. If you're passionate about improving models and excited by the future of ...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Advanced Software Engineer

    Advanced Software Engineer

    Relativity • Boston, MA, United States
    [job_card.full_time]
    As an Advanced Software Engineer at Relativity, you will use your development expertise, working on software projects to build our software platform, Relativity. You will help solve complex problems...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Sr Principal Engineer (Software HIT)

    Sr Principal Engineer (Software HIT)

    Fresenius Kabi USA, LLC • North Andover, MA, United States
    [job_card.full_time]
    Highly experienced engineering position, under minimal or no direct supervision guides the designing, building and maintaining software used in medical devices and engineering projects related to m...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Freelance Survey and Focus Group Contributor (Hiring Immediately)

    Freelance Survey and Focus Group Contributor (Hiring Immediately)

    Maxion Research • Whitman, Massachusetts, US
    [job_card.part_time]
    Join Our Part-Time Research Studies Today!.Are you eager to earn extra income from the comfort of your home? We are looking for motivated individuals to participate in paid research studies includi...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Software Engineer

    Senior Software Engineer

    Sonos Inc • Boston, MA, United States
    [job_card.full_time]
    At Sonos we want to create the ultimate listening experience for our customers and know that it starts by listening to each other. As part of the Sonos team, you'll collaborate with people of all st...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Flexible Online Research Contributor (Hiring Immediately)

    Flexible Online Research Contributor (Hiring Immediately)

    Maxion Research • Easton, Massachusetts, US
    [job_card.part_time]
    Join Our Part-Time Research Studies Today!.Are you eager to earn extra income from the comfort of your home? We are looking for motivated individuals to participate in paid research studies includi...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Remote M&A Associate - AI Trainer ($50-$60 / hour)

    Remote M&A Associate - AI Trainer ($50-$60 / hour)

    Data Annotation • Brockton, Massachusetts
    [filters.remote]
    [job_card.full_time] +1
    We are looking for a finance professional to join our team to train AI models.You will measure the progress of these AI chatbots, evaluate their logic, and solve problems to improve the quality of ...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Sr. Firmware Design Engineer

    Sr. Firmware Design Engineer

    Schneider Electric • Andover, MA, US
    [job_card.full_time]
    Do you want to join the world's most sustainable company • as one of our new Firmware Engineers, working in a team of experts with state-of-the-art technologies?. We are seeking more highly talen...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Software Engineer, SMS Delivery – Editors Platform

    Senior Software Engineer, SMS Delivery – Editors Platform

    Klaviyo • Boston, MA, United States
    [job_card.full_time]
    A leading marketing technology firm in Boston, MA seeks a Senior Software Engineer for SMS Delivery to design and build scalable applications. The role emphasizes frontend development and requires p...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Senior Software Engineer - IDE AI Experiences - LLM Engineer

    Senior Software Engineer - IDE AI Experiences - LLM Engineer

    Datadog, • Boston, MA, United States
    [job_card.full_time]
    We’re building a new team building to bring the power of Datadog to developers within AI-focused IDE experiences such as Cursor and GitHub Copilot. We’re looking for product-minded engineers who are...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Writer / Journalist Internship Part-Time in Worldwide - Remote Worldwide

    Writer / Journalist Internship Part-Time in Worldwide - Remote Worldwide

    The Borgen Project • Brockton, MA, United States
    [filters.remote]
    [job_card.part_time] +1
    Are you passionate about making a difference in the world? Look no further! The Borgen Project is an international organization that works at the political level to improve living conditions for pe...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Independent Scanning Specialist

    Independent Scanning Specialist

    RDSolutions formerly RetailData • Abington, MA, US
    [job_card.part_time]
    The retail industry continues to see unprecedented dynamics as it pivots to a true omni-channel shopping experience.Informed retailers are succeeding, and RDSolutions is providing them with the con...[show_more]
    [last_updated.last_updated_variable_hours] • [promoted] • [new]
    Ada Developer - Software Engineer II

    Ada Developer - Software Engineer II

    Raytheon • Middleton, MA, United States
    [job_card.temporary]
    MA133 : Tewksbury, Ma Bldg 3 Concord 50 Apple Hill Drive Concord - Building 3, Tewksbury, MA, 01876 USA.Person, or Immigration Status Requirements : . At Raytheon, the foundation of everything we do is...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    AI Writing Editor - Flexible

    AI Writing Editor - Flexible

    Outlier • Remote, MA, United States
    [filters.remote]
    [job_card.full_time]
    Earn up to $16 USD / hourly and work remotely and flexibly.Outlier, a platform owned and operated by Scale AI, is looking for. If you're passionate about improving models and excited by the future of ...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Staff Software Engineer - Boston, MA

    Staff Software Engineer - Boston, MA

    OpenGov • Boston, MA, United States
    [job_card.full_time]
    OpenGov is the leader in AI and ERP solutions for local and state governments in the U.More than 2,000 cities, counties, state agencies, school districts, and special districts rely on the OpenGov ...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Principal / Sr Medical Editor - Regulatory Documents - Copy Editing + QC - NA / Canada Remote Based

    Principal / Sr Medical Editor - Regulatory Documents - Copy Editing + QC - NA / Canada Remote Based

    Syneos Health / inVentiv Health Commercial LLC • Boston, MA, United States
    [filters.remote]
    [job_card.full_time]
    Principal / Sr Medical Editor - Regulatory Documents - Copy Editing + QC - NA / Canada Remote Based.Syneos Health is a leading fully integrated biopharmaceutical solutions organization built to acceler...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Speech Language Pathologist - SLP

    Speech Language Pathologist - SLP

    Visiting Rehab and Nursing Services Careers • Bridgewater, Massachusetts, US
    [job_card.full_time] +1
    SLP (Speech-Language Pathologist) – Bridgewater, MA.Must have 1 year of clinical experience •.Set Your Own Hours | Respect, Support, and Zero Clinic Drama. Let’s be honest — you didn’t get into this ...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]