NodeJS Engineer REQ_111

Remote- United States of America Remote, United States of America Remote, United States

Contractor

Job Description

3Pillar is an AI transformation partner on a mission to help enterprises build the AI-native products and intelligent agents that will define the next era of business. With teams across North America, Europe, Latin America, and Asia, we work with the most ambitious companies in financial services, healthcare, media, and technology — helping them move faster, modernize boldly, and compete on their own terms. Our HelixAI platform and Helix Pods delivery model put our engineers at the center of real agentic transformation — doing work that is open, portable, and built to last. We are building the future of enterprise AI.

Senior Software Engineer - NodeJS

Elevate your expertise to new heights at 3Pillar, the premier destination for trailblazing senior software engineers like yourself. Picture collaborating with industry leaders, spearheading transformative projects that redefine urban living, establishing new media channels for enterprise companies, or driving innovation in healthcare. Our mission is to revolutionize the tech landscape, and your skills are integral to achieving this ambitious goal.

Your role extends beyond the realm of code composition; you will architect transformative solutions that reshape entire industries. Join us and spearhead the charge toward a tech future that transcends the ordinary.

Key Responsibilities:

• Design, build, and maintain scalable AWS Lambda functions across the ecoATM accounts platform — covering authentication (Cognito), user profiles, orders, newsletters, and third-party integrations.
• Develop and operate containerized, event-driven communication systems supporting SMS/email workflows, webhooks, subscriptions, and scheduled campaigns (Twilio, SendGrid, Iterable, SNS, Fargate).
• Extend and maintain the serverless payment engine managing the full transaction lifecycle, including webhook processing, DynamoDB stream publishing, and multi-provider payment flows (PayPal, Venmo, gift cards).
• Build and evolve APIs and microservices using Node.js, GraphQL, and RESTful patterns; persist data in DynamoDB, MySQL, and Opensearch.
• Implement operational services — address verification, shipping label generation (S3), promo-code management (Voucherify) — that support internal workflows at scale.
• Manage and improve the Lerna-based monorepo architecture to maximize code reuse, dependency hygiene, and deployment consistency across Lambda services.
• Write comprehensive unit and integration tests using Vitest (mocks, spies, coverage), upholding CI/CD quality gates.
• Facilitate effective communication with client stakeholders regarding project status, technical trade-offs, and recommendations.
• Participate actively in Agile ceremonies — daily stand-ups, sprint planning, retrospectives — and contribute to engineering community initiatives (CoPs, mentoring).
• Leverage AI-assisted development tooling (Cursor, GitHub Copilot) to accelerate feature delivery and maintain high code quality.

Skill Level Description:

• Expert: Has skill mastery based on extensive practical experience. Frequently mentors others in this skill.
• Advanced: Demonstrated expertise built from repeated and diverse practical experience. Able to mentor others in this skill.
• Intermediate: Good relevant practical experience and can credibly discuss/offer perspective
• Foundational: Understanding of fundamentals but limited/no practical experience

Minimum Qualifications:

• 5–7+ years of professional experience as an active participant on an Agile development team.
• Expert experience building and operating AWS serverless applications: Lambda, API Gateway, DynamoDB, SNS, SQS, ECS/Fargate, S3, Cognito.
• Advanced experience with GraphQL schema design, resolvers, and REST-based web services.
• Advanced experience with relational databases (MySQL) and document/search stores (DynamoDB, Opensearch).
• Advanced experience with event-driven and microservice architectures targeting high availability and throughput.
• Advanced experience writing unit and integration tests; strong command of Vitest or equivalent frameworks (mocks, spies, coverage reporting).
• Working experience with Lerna or similar monorepo tooling for multi-package Lambda projects.
• Demonstrated ability to work on complex enterprise systems or successfully deliver a greenfield product.
• Ability to translate business requirements into technical requirements and communicate trade-offs clearly.

Additional Experience Desired:

• Hands-on experience with third-party integrations: Twilio, SendGrid, Iterable, Shopify, or payment processors (PayPal, Venmo).
• Experience with promo/coupon engine integrations (Voucherify or similar).
• Experience with Docker, containerized ECS deployments, and CI/CD pipelines (GitHub Actions or similar).
• Familiarity with AI-assisted coding workflows (Cursor, GitHub Copilot, or equivalent).

You’re passionate about software development — it's not just your career, it's your hobby too.

You’re constantly striving to learn new things and stay current with emerging cloud and serverless patterns.

What is it like working for 3Pillar Global?

At 3Pillar, we offer a world of opportunity:

Imagine a flexible work environment – whether it's the office, your home, or a blend of both. From interviews to onboarding, we embody a remote-first approach.

You will be part of a global team , learning from top talent around the world and across cultures, speaking English everyday. Our global workforce enables our team to leverage global resources to accomplish our work in efficient and effective teams.

We’re big on your well-being – as a company, we spend a whole trimester in our annual cycle focused on wellbeing. Whether it is taking advantage of fitness offerings, mental health plans (country-dependent), or simply leveraging generous time off, we want all of our team members operating at their best.

Our professional services model enables us to accelerate career growth and development opportunities - across projects, offerings, and industries.

We are an equal opportunity employer. It goes without saying that we live by values like Intrinsic Dignity and Open Collaboration to create cutting-edge technology AND reinforce our commitment to diversity - globally and locally.

Join us and be a part of a global tech community!

Check out our Linkedin site and Careers page to learn more about what it’s like to be part of our #oneteam!

Job Snapshot

Updated Date

09/30/2026

Job ID

Job_240

Department

Engineering & Architecture

Location

Location Remote- United States of America Remote, United States of America Remote, United States