Senior Fullstack Software Engineer - JavaScript / TypeScript jobs in United States
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Rithum · 1 day ago

Senior Fullstack Software Engineer - JavaScript / TypeScript

Rithum is the world’s most trusted commerce network, accelerating how brands, suppliers, and retailers work together to deliver seamless e-commerce experiences. As a Senior Software Engineer for the Retailers business function, you will be responsible for writing efficient, maintainable code and mentoring junior engineers while collaborating closely with designers and architects to enhance product scalability and performance.

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H1B Sponsor Likelynote

Responsibilities

Provide guidance on system architecture decisions, making sure the technical direction aligns with business goals
Conduct thorough code reviews, ensuring best practices are followed, identifying potential issues, and mentoring junior developers in improving their coding skills
Provide technical guidance, share knowledge, and help junior and mid-level engineers grow in their roles by reviewing their work and offering constructive feedback
Work closely with other teams to ensure seamless delivery of software projects and alignment across departments
Be able to break down large, complex tasks into smaller, manageable components and distribute them among team members
Play a key role in agile processes, including sprint planning, daily stand-ups, retrospectives, and prioritization of tasks
Communicate effectively with stakeholders, including product managers, designers, and clients, to clarify requirements and ensure alignment with business objectives
Handle complex technical challenges, debugging, and resolving issues that may be beyond the scope of junior engineers
Participate in on-call rotation to support the “you build it you own it” mantra
Understanding and utilization of software development tools including version control, building processes, debuggers, and test frameworks for:
Primary technologies (may include):
Typescript, Angular
JavaScript, Node.js, React.js
Python
AWS services (Lambda, DynamoDB, OpenSearch, Kinesis, API Gateway, Step Functions, and others)
IaC: Terraform, CloudFormation, Serverless
Secondary technologies
AWS services (OpenSearch, Lambda, DynamoDB, Kinesis, RDS, and others)
SOAP/REST web service APIs
Redis, NoSQL
AWS SageMaker, Glue
Microsoft SQL Server

Qualification

AngularTypescriptJavaScriptNode.jsAWS TechnologiesPythonAI/MLTensorFlow/PyTorchSQL ServerNoSQLVersion ControlCommunication SkillsMentoringProblem-SolvingTeam Collaboration

Required

3+ years' experience developing in Angular, Typescript, JavaScript or Node.js
3+ years' experience developing in AWS Technologies
2+ years of AI/ML experience with a strong technical focus
2+ years' experience in Python, TensorFlow/PyTorch, or cloud platforms
Proven leadership in high-impact AI projects, with a history of mentoring team members and developing innovative methods that drive departmental objectives
Strong verbal and written English communication skills
Experience developing web applications, working with databases, and consuming APIs
Understanding of relevant software development tools including version control, build processes and test frameworks
Ability to work independently with limited supervision

Preferred

Bachelor's degree or higher in Computer Science or a closely related field
2+ years of AI/ML experience with a strong technical and strategic focus, with expertise in machine learning algorithms, NLP, computer vision, or large-scale deployment
2+ years expertise in machine learning algorithms, NLP, computer vision, or large-scale deployment
2+ years' experience in creating data systems for feature stores or vector databases
Experience with cloud computing infrastructures such as AWS or Azure
Use of source code repositories such as Azure DevOps and Git
Experience working with SQL Server and NoSQL databases
Experience with performance tuning and optimization techniques for high scale systems
Experience working with development teams in multiple time zones
Proven track record of creating secure and scalable software that scales to dozens or hundreds of servers in a distributed, fault tolerant manner
Experience with e-commerce, retail, online marketplaces, or digital advertising
Excellent analytical, decision-making and problem-solving skills
Proven ability to work in a rapidly changing environment with keen attention to detail

Benefits

Medical, dental and vision benefits: Affordable health care plans and company HSA contributions, starting on Day 1
A 6% 401(k) match
Competitive time off package with 20 days of Paid Time Off, 9 Company-Paid holidays, 2 paid floating holidays, 7 paid sick days, 2 Wellness days, and 1 Paid Volunteer Day; at 3 years of service PTO increases to 22 days, and at 5 years it increases to 25 days
12 weeks primary caregiver leave & 4 weeks secondary caregiver leave
Accident, critical illness, and hospital indemnity insurance
Pet insurance
Legal assistance and identity theft insurance plans
Life insurance 2x salary
Access to the Calm app and the Employee Assistance Program
$65/month Remote work stipend for internet
Culture and team-building activities
Tuition assistance
Career development opportunities
Charitable contribution match up to $250 per year

Company

Rithum

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Rithum is a provider of cloud-based e-commerce fulfillment and marketing solutions for large retailers, marketplaces, and consumer brands.

H1B Sponsorship

Rithum has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (3)

Funding

Current Stage
Late Stage

Leadership Team

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Lou Keyes
Chief Executive Officer & Board Member
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Suzin Wold
Chief Marketing Officer (CMO)
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Company data provided by crunchbase