Explore 1 full stack python and react engineer ii jobs from 1 hiring companies in Danvers, MA, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Full Stack Python And React Engineer Ii

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Full Stack Python And React Engineer Ii Jobs

Klaviyo

Onsite

<div class="content-intro"><p><em>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 <a class="_ymio1r31 _ypr0glyw _zcxs1o36 _mizu194a _1ah3dkaa _ra3xnqa1 _128mdkaa _1cvmnqa1 _4davt94y _4bfu18uv _1hms8stv _ajmmnqa1 _vchhusvi _kqswh2mm _ect4ttxp _syaz13af _1a3b18uv _4fpr8stv _5goinqa1 _f8pj13af _9oik18uv _1bnxglyw _jf4cnqa1 _30l313af _1nrm18uv _c2waglyw _1iohnqa1 _9h8h12zz _10531ra0 _1ien1ra0 _n0fx1ra0 _1vhv17z1" href="http://klaviyo.com/careers" data-renderer-mark="true">klaviyo.com/careers</a>&nbsp;to see how we empower creators to own their own destiny.</em></p></div><h3><strong>About the Role</strong></h3>
<p>Klaviyo is looking for a Full Stack Engineer to support key initiatives that enhance our product offerings and drive company growth. In this role, you'll play a critical part in delivering end-to-end solutions using both front-end and back-end technologies. You’ll improve existing products and develop new capabilities that push the boundaries of what’s possible for our customers.</p>
<p>As a Software Engineer II, you’ll tackle complex challenges, explore multiple solutions, and weigh business and technical trade-offs to determine the best path forward. You’ll actively contribute to team discussions and help shape important technology decisions. You'll also be responsible for shipping well-designed, thoroughly tested solutions that prioritize reliability and performance.</p>
<p>On the <strong>Flows Insight &amp; Management</strong> team, we focus on crafting an exceptional user experience for the Flows product area which empowers users to build, manage, and analyze automated workflows seamlessly. Our work revolves around an intuitive visual editor that lets users create and modify flows with ease, as well as the rich insights and analytics that help them understand how their flows are performing. We also manage APIs that integrate with other services, creating a powerful ecosystem for users to drive automation in new and exciting ways.</p>
<p>Collaboration is key to what we do. We actively partner with engineering teams across the organization, giving us exposure to diverse parts of the product and opportunities to impact various projects. This keeps us engaged with a variety of challenges and solutions, as we’re always learning and evolving.</p>
<p>Looking to the future, our team is focused on expanding the capabilities of Flows. We’ll be enhancing our flow editor and ecosystem to make it even easier to build and expand on flows. We’re also building smarter recommendations and actionable insights to help users optimize their flows. With our continued evolution, we envision Flows not just as a tool, but as a platform that empowers teams to do more, build more, and connect seamlessly.</p>
<h3><strong>About the Team</strong></h3>
<h3><sup>The Flows Insight &amp; Management team owns how customers design, understand, and manage automated lifecycle programs across channels like Email, SMS, and WhatsApp. We are responsible for:</sup></h3>
<ul>
<li>
<h3><sup>The Flows User Experience: Building an intuitive visual editor, staff-side management tools, and the analytics previews that allow users to create and modify flows with ease.</sup></h3>
</li>
<li>
<h3><sup>Developer APIs: Managing the configuration and APIs that handle creating, editing, cloning, and versioning flows.</sup></h3>
</li>
<li>
<h3><sup>Analytics &amp; Reporting: Delivering rich insights, node-level metrics, and revenue/conversion analytics that help users understand exactly how their automations are performing.</sup></h3>
</li>
<li>
<h3><sup>Looking to the future, we are focused on expanding the flow editor ecosystem and building smarter recommendations and actionable insights to help users optimize their strategies.</sup></h3>
</li>
</ul>
<h3>What We’re Looking For</h3>
<ul>
<li>3+ years of experience in a software engineering role with a proven track record of building high-quality products.</li>
<li>Strong Full Stack proficiency: Experience building end-to-end solutions using Python and Django on the backend, and React and TypeScript on the frontend.</li>
<li>API Design experience: Ability to design and maintain robust RESTful APIs (experience with developer-facing APIs is a plus).</li>
<li>Infrastructure &amp; Database knowledge: Familiarity with relational databases (MySQL/Aurora) and exposure to cloud infrastructure, specifically AWS.</li>
<li>Engineering best practices: A focus on writing clean, maintainable code, participating in code reviews, and leading robust testing practices.</li>
<li>Agile collaboration: Experience working in fast-paced environments and partnering effectively with Product and Design teams.</li>
<li>Experience using AI coding tools like Claude Code or Cursor to accelerate development.</li>
</ul>
<h3><strong>Nice to Have</strong></h3>
<ul>
<li>Experience with infrastructure as code, such as Terraform.</li>
<li>Familiarity with asynchronous task queues and event-driven architecture (Pulsar, Kafka, RabbitMQ, Celery).</li>
<li>Background in digital marketing, customer data software, or building analytics products.</li>
<li>Exposure to machine learning concepts, as we work towards building smarter recommendations for our users.</li>
<li>Experience building cloud-native solutions, ideally on AWS.</li>
</ul>
<p>&nbsp;</p>
<p>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<a href="https://getcovey.com/product/covey-scout-inbound"> Covey Scout for Inbound</a> on April 3, 2025.</p>
<p>Please see the independent bias audit report covering our use of Covey<a href="https://getcovey.com/nyc-local-law-144"> here</a></p><div class="content-pay-transparency"><div class="pay-input"><div class="description"><p><strong>Massachusetts Applicants:<br></strong>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.</p>
<hr>
<p>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.</p>
<p>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.&nbsp;</p>
<p>Your recruiter can provide more details about the specific salary/OTE range for your preferred location during the hiring process.</p></div><div class="title">Base Pay Range For US Locations:</div><div class="pay-range"><span>$116,000</span><span class="divider">&mdash;</span><span>$174,000 USD</span></div></div></div><div class="content-conclusion"><p><strong>Get to Know Klaviyo</strong></p>
<p>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.</p>
<p><em>AI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop). We provide accommodations as needed.&nbsp;</em></p>
<p><em>By participating in Klaviyo’s interview process, you acknowledge that you have read, understood, and will adhere to our&nbsp;<a href="https://www.klaviyo.com/careers/ai-guidance" target="_blank" data-saferedirecturl="https://www.google.com/url?q=https://www.klaviyo.com/careers/ai-guidance&amp;source=gmail&amp;ust=1761072778777000&amp;usg=AOvVaw0auUcRqeYRczM9UoXAKldj">Guidelines for using AI in the Klaviyo interview Process</a>. For more information about how we process your personal data, see our&nbsp;<a href="https://www.klaviyo.com/legal/job-applicant-privacy-notice" target="_blank" data-saferedirecturl="https://www.google.com/url?q=https://www.klaviyo.com/legal/job-applicant-privacy-notice&amp;source=gmail&amp;ust=1761072778777000&amp;usg=AOvVaw1axMoReIM1qwTbmaPcLI_b">Job Applicant Privacy Notice</a>.<br></em></p>
<p><em>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.</em></p>
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<div class="p-rich_text_section"><em data-stringify-type="italic">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.</em></div>
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<div class="p-rich_text_section"><strong data-stringify-type="bold">By clicking "Submit Application" you consent to Klaviyo processing your Personal Data in accordance with our Job Applicant Privacy Notice.&nbsp; If you do not wish for Klaviyo to process your Personal Data, please do not submit an application.<em data-stringify-type="italic">&nbsp; </em></strong><em data-stringify-type="italic">You can find our Job Applicant Privacy Notice&nbsp;</em><em data-stringify-type="italic"><a class="c-link" href="https://www.klaviyo.com/legal/job-applicant-privacy-notice" target="_blank" data-stringify-link="https://www.klaviyo.com/legal/job-applicant-privacy-notice" data-sk="tooltip_parent">here</a></em><em data-stringify-type="italic">&nbsp;and <a href="https://www.klaviyo.com/fr/legal/job-applicant-privacy-notice">here</a> (FR).</em></div>
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Software Engineer II - Flows and Insight Management

Software Engineer

3+ years in software engineering; strong full stack with Python/Django backend and React/TypeScript frontend; RESTful APIs; AWS; MySQL/Aurora; agile; AI coding tools

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