Jobs in the United States

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Site Reliability Engineer - OCI (Start Date: Feb 2027)
Oracle
Nashville, TN
- $59,100 to $118,200 USD / year
To be considered for a SRE position in OCI, you must possess the Objective Minimum Qualifications (OMQs) below
Added 7 mins ago
Systems Test Engineer 3
United Launch Alliance
Centennial, CO
This position will support the ULA Enterprise through being a System Test Project Manager, driving test execution of launch vehicle systems. This candidate will report to the Airborne…
Added 8 mins ago
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Senior IT Security and Network Engineer
AIR Communities
Denver, CO
- $130,000 to $160,000 USD / year
The role is expected to work in the office 4 to 5 days per week, based on business and team needs
Added 8 mins ago
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Lead Software Engineer
RGA Enterprise Services Company
Remote, United States
- $123,120 to $183,290 USD / year
Develop, test, and deployed backend API's with Pydantic for validation and Beanie for MongoDB ORM.
Added 16 mins ago
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Intelligent Automation / RPA Engineer / Software Engineer
Unissant
Washington, DC
- $119,000 to $145,000 USD / year
Unissant is seeking an Intelligent Automation / RPA Engineer / Software Engineer to support a newly awarded program for a federal health agency. Design, implement, and support approved…
Added 20 mins ago
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Software Test Engineer
Actalent
Phoenix, AZ
- $50 to $65 USD / hour
A fully onsite option is also available in Cedar Rapids, Iowa, five days per week
Added 28 mins ago
Senior Systems Engineer
SAIC
Huntsville, AL
Must possess an active Secret security clearance with the ability to maintain; US Citizenship required
Added 35 mins ago
Product Quality Leader
J. J. Keller & Associates, Inc.
Neenah, WI
Work Hours: Standard business hours; onsite at least 4 days per week · The Product Quality Leader is required to work onsite at our corporate office in Neenah, WI at least 4 days per week
Added 41 mins ago
Model Based System Engineer Staff
ITI Engineering
Winter Springs, FL
As a Model Based Staff Systems Engineer at ITI, you will be responsible for the system design and verification of advanced military electronics and computing products. You will apply…
Added 42 mins ago
Lead Angular Engineer, MarTech - Engagement & Subscriptions
Cricut
South Jordan, UT
As Lead Angular Engineer for Marketing Technology (MarTech), you will provide hands on technical leadership for experiences that improve subscription conversion, retention, and member…
Added 47 mins ago
Hardware Validation Engineer
ALTEN Technology USA
Palo Alto, CA · Irvine, CA
As a Hardware Validation Engineer you will be responsible for;
Added 50 mins ago
Software Engineer II - Flows Experience
Klaviyo
Boston, MA
We want a Full Stack Engineer who likes owning features end to end, from the React canvas down to the Python services and APIs underneath. You’ll work closely with Flows Platform, the team…
Added 52 mins ago
Sr Systems Engineer
Sierra Nevada Corporation
Plano, TX
Qualifications You Must Have:
Added 52 mins ago
Principal Systems Engineer
Sierra Nevada Corporation
Plano, TX
Qualifications You Must Have:
Added 53 mins ago
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Embedded Software Engineer
Actalent
Phoenix, AZ
- $50 to $65 USD / hour
A fully onsite option is also available, based in Cedar Rapids, Iowa, five days per week
Added 53 mins ago
Mechanical Engineer
Actalent
New Braunfels, TX
Job Title: Mechanical EngineerJob DescriptionThis role offers an early-career Mechanical Engineer the opportunity to support the design, development, testing, compliance, and manufacturing…
Added 53 mins ago
Senior Electrical Engineer
ASML US, LP. (US30)
Wilton, CT
Minimum of 4 years of relevant work experience required
Added 53 mins ago
AU
Senior Electrical Engineer
ASML US, LP. (US30)
Wilton, CT
- $131,000 to $190,000 USD / year
Minimum of 4 years of relevant work experience required
Added 59 mins ago
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AI Engineer
Senseye
Remote, United States
- $129,000 to $148,000 USD / year
A working grasp of ML fundamentals: training and validation, overfitting, evaluation metrics, and why a good test score isn't the same as a working product.
Added 59 mins ago
Ford Racing Thermal Systems Engineer
Ford
Allen Park, MI · Allen Park
The Ford Racing Thermal Systems Engineer role involves extensive cross-functional collaboration, target setting, modeling, validation testing, and risk management to ensure that Ford Racing…
Added 59 mins ago
Aviation Maintenance Engineer
Anduril Industries
Costa Mesa, CA
As an Aviation Maintenance Engineer you will ensure the airworthiness and mission readiness of developmental UAS platforms across assembly, maintenance, and flight test operations. You will…
Added 1 hour ago
Site Reliability Engineer - OCI (Feb 2027 Start Date)
Oracle
Nashville, TN
To be considered for a SRE position in OCI, you must possess the Objective Minimum Qualifications (OMQs) below
Added 1 hour ago
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Data Engineer
Unissant
Washington, DC
- $130,000 to $145,000 USD / year
Unissant is seeking a Data Engineer to support a newly awarded program for a federal health agency. Build and maintain reliable data pipelines, data transformations, and integration…
Added 1 hour ago
Intermediate Communications Systems Engineer
The MITRE Corporation
Bedford, MA
Must have ability to obtain and maintain a Top Secret U.S Government issued Security Clearance
Added 1 hour ago
Principal Software Engineer, Performance
Nuro
Mountain View, CA
You will architect hardware-agnostic device interfaces, inter-device communication pipelines, runtime APIs, and onboard software platforms that enable Nuro’s autonomy stack to run safely…

Klaviyo

Software Engineer II - Flows Experience

Boston, MA, United States

$116,000 - $174,000 USD

Apply on klaviyo.com About employer

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Job details

Pay: $116,000 - $174,000 USD
Posting language: English
Posted: Nov 12, 2026

Original 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 klaviyo.com/careers to see how we empower creators to own their own destiny.

Software Engineer II - Flows

Onsite in Boston, MA 5 days a week

Flows is how tens of thousands of brands automate their marketing on Klaviyo, from welcome series and abandoned-cart reminders to complex multi-channel journeys that reach 100M+ consumers. The Flows Experience team builds everything a marketer touches in a flow: the canvas, triggers, filters and actions they configure, the analytics they use to decide what to do next, and the APIs that developers and AI tools use to build flows for them. Our mission: Flows should be the easiest, most trusted place to run sophisticated marketing automation. Complex journeys should feel simple, mistakes should get caught before they cost revenue, and the product should keep up as an account grows.

We want a Full Stack Engineer who likes owning features end to end, from the React canvas down to the Python services and APIs underneath. You’ll work closely with Flows Platform, the team that runs the engine behind every flow, and with product and design, to ship work customers notice right away. Recently the team made large flows open up to 70% faster, launched an API (also in the Klaviyo MCP) that lets developers and AI agents safely edit live flows, and raised webhook throughput 20x.

How you’ll make a difference

Own major parts of the Flows product (the builder, analytics, version history, management surfaces) from design through launch and operation
Design and evolve the public and internal Flows APIs that define how a flow can change. Customers, partners and AI agents all build on them.
Make the product fast and reliable for very large flows and very large accounts, whether that means canvas render performance, a slow analytics query or an API under heavy load
Build guardrails that catch mistakes before they cost a brand revenue: validation, safe defaults, clear feedback and easy recovery
Partner with Flows Platform on the contract between the product and the engine, so new capabilities scale from day one
Raise the bar for your team as a technical leader through design reviews, mentorship, operational excellence and modern, AI-assisted ways of building

Who you are

You’ve built and shipped products that customers rely on, and you care about the user experience as much as the code
You’re strong across the stack. You know at least one area deeply (complex front-end apps, API design, or backend performance) and are comfortable working in the others.
You enjoy hard problems at the line between UX and systems: a canvas that lags with 200 nodes, a workflow with too many clicks, a query that times out, a queue that won’t drain
You ship early and often, use data and customer feedback to iterate, and work closely with product and design
You thrive on a small, autonomous team where you own outcomes and collaborate widely to get them right
You’re curious about how AI changes both what we build (agents that build flows) and how we build it

Technologies we use (not exhaustive)

React, TypeScript, JavaScript
Python, Django, Celery
MySQL, Redis, RabbitMQ, Kafka
AWS, Terraform, and modern observability and CI/CD tooling

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:

$116,000 - $174,000 USD

This role may require up to 10% travel for purposes such as new hire onboarding, client or partner work if applicable, team meetings, and industry events. Travel is coordinated in advance.

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).

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Jobs in the United States