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Sr Software Engineer I

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Sr Software Engineer I in USA

  • American Express
  • Full time
  • Email
  • Phoenix, AZ

Responsibilities

  • Design, build, and manage enterprise messaging, event distribution, system integration, and shared technology platforms.
  • Build self-service onboarding portals, topic and schema management consoles, monitoring views, APIs, and backend services across the full stack.
  • Architect high-throughput, low-latency event-driven systems using publish/subscribe, queue-based, and streaming patterns.
  • Lead platform modernization and migration from legacy middleware and monolithic application servers to containerized cloud-native microservices.
  • Engineer multi-region resiliency, failover, dead-letter handling, duplicate detection, and failure isolation.
  • Own CI/CD pipelines, configuration management, release verification, rollback procedures, observability, alerting, and data-quality reconciliation.
  • Evaluate LLM and AI/ML applications for schema generation, anomaly classification, and reconciliation summarization with human-in-the-loop controls.
  • Write production code and unit tests, participate in design reviews, uphold engineering and security standards, and mentor junior engineers.
  • Partner with product, infrastructure, business, and senior leadership stakeholders to translate objectives into technical designs and communicate trade-offs.

Requirements

  • Bachelor's or master's degree in computer science, computer engineering, or another technical discipline is preferred.
  • 10+ years of software development experience.
  • Experience with full-stack development, enterprise messaging and streaming platforms, and large-scale highly resilient systems.
  • Production cloud experience, preferably AWS, including container orchestration, streaming and storage services, secrets and parameter management, and infrastructure as code.
  • Experience with CI/CD tools such as Harness, Jenkins, or GitLab and container platforms such as Docker, Kubernetes, ECS, or OpenShift.
  • Strong data skills involving relational databases, SQL/PLSQL, NoSQL stores, XML/XSD/XSLT, JSON schema design, and data-quality or reconciliation engineering.
  • Experience with observability and log analytics tools such as Dynatrace, Splunk, or ELK.
  • Experience with LLMs, prompt engineering, ML, cognitive OCR, or agentic AI automation; Python experience is a plus.
  • Experience with microservices, service mesh technologies, high-throughput applications, and performance engineering.
  • Experience with JavaScript, TypeScript, ReactJS, NodeJS, NextJS, Java, Python, Go, React, Envoy, gRPC, Protocol Buffers, JSON, Couchbase, Cassandra, Redis, API development, and cloud infrastructure is preferred.
  • Demonstrated ability to mentor engineers and lead technical work across distributed onsite and offshore teams.
  • Strong analytical, business analysis, communication, technical judgment, and ability to interpret technical and business objectives.

Benefits

  • Competitive base salaries and bonus incentives.
  • 6% company match on the retirement savings plan.
  • Free financial coaching and financial well-being support.
  • Comprehensive medical, dental, vision, life insurance, and disability benefits.
  • Flexible working model with hybrid, onsite, or virtual arrangements depending on role and business need.
  • 20+ weeks of paid parental leave for all parents for pregnancy, adoption, or surrogacy.
  • Access to global onsite wellness centers staffed with nurses and doctors, depending on location.
  • Free confidential counseling through the Healthy Minds program.
  • Career development and training opportunities.

Salary: $123k - $215k/yr

American Express

At American Express, we know that with the right backing, people and businesses have the power to progress in incredible ways. Whether we’re supporting our customers’ financial confidence to move ahead, taking commerce to new heights, or encouraging people to explore the world, our colleagues are...

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