# Senior Software Engineer II at American Express

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Lead backend and platform work for TLS O

- **Company:** American Express (https://jobs.trythestack.co/companies/american-express)
- **Location:** Burgess Hill, GB, United Kingdom
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 10+ years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Backend Engineering, API Design, Distributed Systems, Cloud Platforms, Docker, Kubernetes, SQL, NoSQL, Vector Databases, Machine Learning, LLM, MLOps, Python, System Design, Solution Architecture, Observability
- **Posted by employer:** 2026-05-22
- **Added to The Stack:** 2026-05-23
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://egug.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_1/job/26008496 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-software-engineer-ii-american-express

## About the role

Responsibilities:
- Lead backend and platform work for TLS Opus: evolve services, improve platform reliability and scalability.
- Design, build and ship AI-enabled capabilities using Python, modern ML/LLM tooling and vector databases.
- Drive platform-level improvements: microservices refactors, CI/CD, observability and cloud-native practices (containers, orchestration).
- Partner with product owners, architects and stakeholders to define technical direction and deliver measurable business outcomes.
- Mentor engineers and evangelise engineering excellence, automation and production ML best practices.
- Ensure 24x7 operational readiness: monitoring, incident response, capacity planning and reliability engineering.

Requirements:
- Extensive experience in backend engineering and distributed systems at scale (10+ years preferred).
- Strong Python skills and proven experience deploying ML/LLM systems to production (MLOps, vector DBs, embeddings).
- Solid cloud-native experience (AWS/Azure/GCP), Docker, Kubernetes and infrastructure automation.
- Deep system design and solution architecture skills; experience influencing stakeholders and cross-team priorities.
- Familiarity with observability, CI/CD, data pipelines and security/risk-aware delivery.

## Responsibilities

The role focuses on evolving backend services and driving platform-level improvements for the TLS Opus CRM platform. It involves building AI-enabled capabilities using Python and modern AI tooling within an agile engineering environment.

## Requirements

Requires deep expertise in backend engineering, distributed systems, and cloud-native architectures. Candidates must have experience deploying AI/ML systems in production and strong skills in system design and stakeholder influence.

## FAQ

- **Is this Senior Software Engineer II role still open?** It was posted on 2026-05-22. Listings more than 30 days old may no longer be active, so check American Express's site before applying.
- **Does American Express offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on American Express's site.
- **Where is this role located?** The listing gives the location as Burgess Hill, GB, United Kingdom. It is marked on-site.
- **What skills does this role ask for?** The listing names: Backend Engineering, API Design, Distributed Systems, Cloud Platforms, Docker, Kubernetes, SQL, NoSQL, Vector Databases, Machine Learning, LLM, MLOps, Python, System Design, Solution Architecture, Observability.

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