Stackline is the first full-funnel connected commerce platform for the world's most innovative brands. Business leaders, product innovators, performance marketers, and analysts trust Stackline as the single source of commerce truth. Fueled by our proprietary neural network, our market insights, revenue metrics, behavior analyses, and autonomous functionality create the actions that determine success or failure.
Founded in 2014 in Seattle, we have offices in Minneapolis, New York, Salt Lake City, and London. Since November 2020, Stackline has raised $180 million in strategic investments from Goldman Sachs Growth Equity and TA Associates.
Stackline is on a mission to fuel the future of commerce by bringing brands and customers closer together.

About The Role:

The Software Engineer II (Full Stack) is an essential role for the development and refinement of software features or products. This role will be responsible for designing, building, maintaining, and improving software products and services with both frontend and backend components, specifically crafting interactive applications that utilize diverse UI technologies and tools. Sophisticated coding, testing, and debugging tasks along with resolving complex bugs, enhancing performance, and updating software will be additional focus areas. This role is based out of our Seattle, WA office 5 days per week.

You will be joining a dynamic team that is the driving force behind the expansion of our suite of software products. A successful candidate will be able to navigate ambiguous and complex situations seamlessly, quickly establish trust and rapport across teams, and guide and mentor team members in scaling systems to accommodate more users and ensuring system functionality and reliability.

Join us on our journey of continual evolution and innovation!

   What You Will Do:
  • Design and implement stable and performant SaaS products utilizing both frontend and backend technologies such as C#, Java, and Node.js.
  • Own a complex set of internal/external services and data sets.
  • Execute full SDLC (design, build, document, unit/functional/load test, and deploy) APIs, UIs, applications, and infrastructure needed to scale our products and platform.
  • Address latency and throughput challenges in data process and request serving.
  • Design and develop high volume enterprise scale data service applications, which will handle billions of data points weekly.
  • Build and manage large scale distributed system platform and services built using Big Data technologies.
  • Evaluate existing software to identify enhancement opportunities. This will include tackling latency, throughput challenges in data processing and request serving.
  • Set up efficient operational processes including continuous deployment pipelines (CI/CD), testing automation, and appropriate monitoring and alerts.
  • Actively participate in design discussions, team planning and code reviews. Provide insightful and constructive feedback for team and individual improvement.
  • Troubleshoot software failures by reviewing code errors, logfiles, metrics, using debug functions, and other common troubleshooting techniques.
  • Provide guidance to junior engineers about software development, operational excellence.

Who We Are Looking For:

  • Bachelor’s degree in Computer Science or a related technical field.
  • 3+ years of professional development experience in modern programming languages such as JavaScript, Node.js, C#, Java, Python, or Typescript.
  • 2+ years of professional development experience with React and building REST/GraphQL APIs.
  • Experience with LLMs and other machine learning models.
  • Experience with AWS services including, S3, SQS, CloudFront, SNS, ECS, EC2, Route 53, Lambda, Kinesis.
  • Experience using Database technologies: Mongo / Dynamo / MySQL / Postgres / RDS. 
  • Experience with Elasticsearch/OpenSearch.
  • Experience using state management libraries such as Redux, Zustand, Redux Toolkit.
  • Knows a broad range of design approaches and when to use them (and when to not).
  • Understands a broad range of data structures and algorithms, and which to use, or not.
  • Understands the maintenance characteristics, runtime properties, and dependencies of a software (e.g., build dependencies). Knows how to be efficient with compute resources: hardware, database, memory/CPU, etc.
  • Understands how to thoroughly test functionality of complex software systems.
  • Experience working with Agile methodologies. 
  • Strong analytical and excellent problem-solving skills, with a propensity towards learning new tools and technologies.
  • Comfortable writing SQL and hands-on knowledge of working with large datasets with billions of records.

 Bonus Points If You Have:

  • Master’s degree in Computer Science or a related technical field. 
  • Experience working in a startup, retail, digital advertising, or e-commerce environment.
  • Experience building complex applications on distributed systems that have been successfully deployed for a large customer base.
  • Experience with Big Data technologies (streaming and batch processing).
  • Experience with LLMs and other machine learning models.
  • End-to-end software development experience.
  • History of delivering high quality production systems/services.
  • Experience designing with an emphasis on scalability and sustainability.

 Benefits and Perks: 

It’s important that each and every employee feels they are supported and can complete their life’s best work today and in the future. As part of that, we are committed to doing our part in addressing pay gaps and discrepancies by providing pay transparency for all of our roles. Actual salaries are just one component of the compensation package and may vary above or below the range based on job-related knowledge, skills, experience, geographical location, and performance. The pay range for this position located in Seattle is $150,000 - $170,000 per year. Other rewards may include annual bonuses, short- and long-term incentives, and other team-specific awards. In addition we provide a robust benefits and perks package that includes:

  • Comprehensive benefits plan covering medical, dental, and vision
  • Fertility benefits
  • Company 401k plan plus matching
  • Company paid Life Insurance
  • 20 days of Paid Time Off annually
  • 9 Paid company holidays
  • 100% Paid Parental leave - 20 weeks for birthing mothers and 12 weeks for all other parents
  • Summer Fridays early close at 2pm
  • Fully stocked kitchen snacks with weekly fresh fruit


Stackline is committed to creating a diverse environment and is proud to be an equal opportunity employer. We encourage applicants from all backgrounds to apply. All qualified applicants will receive consideration for employment without regard to race, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Apply for this Job

* Required

resume chosen  
(File types: pdf, doc, docx, txt, rtf)
cover_letter chosen  
(File types: pdf, doc, docx, txt, rtf)

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Stackline’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.

Please reach out to our support team via our help center.
Please complete the reCAPTCHA above.