Senior Software Engineer - E-Commerce

ABOUT TRUELOGIC

At Truelogic we are a leading provider of nearshore staff augmentation services headquartered in New York. For over two decades, we’ve been delivering top-tier technology solutions to companies of all sizes, from innovative startups to industry leaders, helping them achieve their digital transformation goals.

Our team of 600+ highly skilled tech professionals, based in Latin America, drives digital disruption by partnering with U.S. companies on their most impactful projects. Whether collaborating with Fortune 500 giants or scaling startups, we deliver results that make a difference.

By applying for this position, you’re taking the first step in joining a dynamic team that values your expertise and aspirations. We aim to align your skills with opportunities that foster exceptional career growth and success while contributing to transformative projects that shape the future.

OUR CLIENT

This is a design-led lifestyle and e-commerce marketplace operating at the intersection of technology, art, and consumer retail. The organization connects a global community of independent artists with customers seeking distinctive, premium products across stationery, art, and home décor.

JOB SUMMARY

We are seeking a Senior Software Engineer to drive the design, delivery, and evolution of core components within our Orders Platform, including cart, payments, shipping, and order management. This role spans end-to-end ownership from technical design and implementation to deployment, monitoring, and production stability.

You will build resilient, scalable e-commerce microservices, integrate complex third-party systems (payment gateways, shipping providers, compliance services), and ensure distributed data consistency across systems. The role includes contributing to the migration from a monolithic architecture to modern microservices, implementing decomposition strategies, and supporting frontend modernization efforts.

You will design extensible RESTful APIs, optimize performance through caching and database improvements, manage infrastructure enhancements (Redis, CI/CD, Kubernetes), and proactively resolve production issues. In addition, you will mentor engineers, author technical design documents, and collaborate cross-functionally to deliver stable, high-impact features at scale.

RESPONSIBILITIES

- Lead component-level projects (cart, payments, shipping, orders) across the Orders

Platform, from design and implementation to deployment and monitoring.

- Design and build resilient, scalable e-commerce microservices (cart, payment gateways

like CyberSource/Apple Pay/PayPal, shipping/fulfillment like FedEx/ShipEngine),

ensuring distributed data consistency.

- Drive the migration from a monolith to modern microservices using decomposition

patterns (e.g., Strangler Fig) and modernize the frontend (React, CJS-to-ESM,

Webpack-to-Vite).

- Design and implement RESTful API services for various consumers, focusing on

extensibility, caching (Redis/Valkey), and third-party rate limiting.

- Integrate third-party payment and compliance systems (e.g., CyberSource MLE),

adhering to security best practices and deadlines.

- Create and maintain operational dashboards, monitoring, and alerting using Grafana,

CloudWatch, and Sentry for system health and quick production issue identification.

- Write extensible, well-tested code with high unit test coverage, delivering stable features

consistently.

- Manage infrastructure tasks including Redis upgrades, database optimization (read

replicas, slow query remediation), CI/CD improvements, and Helm/Kubernetes

configuration.

- Investigate and resolve production issues quickly, identifying root causes, predicting

ramifications, and implementing preventative fixes.

- Collaborate with Product, QA, and cross-functional teams to meet requirements,

proactively communicate status/blockers, and plan 1-2 weeks ahead.

- Mentor engineers and interns, sharing system knowledge, best practices, and

architectural decisions.

- Author detailed technical design documents for complex projects, covering context,

proposed approaches, performance, phased plans, and acceptance criteria.

QUALIFICATIONS AND JOB REQUIREMENTS

- 8+ years of professional experience as a software engineer, with demonstrated ability to

own and deliver complex, multi-week projects independently.

- A B.S. in Computer Science or equivalent experience.

- Strong, hands-on programming skills in Python (primary) with working knowledge of at

least one additional language (JavaScript/TypeScript, PHP, or similar).

- Experience building and maintaining microservices and event-driven systems (Kafka,

message queues, async consumers) in a production environment.

- Practical experience with monolith-to-microservice migration, decomposing legacy

systems, managing dual-write p