Senior Software Engineer II at American Express

✨ The Stack take on this American Express job

• 🏢 American Express has 5 jobs here, 5 with visa sponsorship see all
• 🛂 Skilled Worker visa. Standard minimum salary: £41,700 a year guide
• 💡 No salary shown. Ask American Express if it is above the minimum.

Updated 2026-11-06, from our data and official sources.

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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.

Key skills

• Backend Engineering — in 130 other listings on The Stack
• API Design — in 193 other listings on The Stack
• Distributed Systems — in 346 other listings on The Stack
• Cloud Platforms — in 71 other listings on The Stack
• Docker — in 465 other listings on The Stack
• Kubernetes — in 594 other listings on The Stack
• SQL — in 552 other listings on The Stack
• NoSQL — in 52 other listings on The Stack
• Vector Databases
• Machine Learning
• LLM
• MLOps
• Python
• System Design
• Solution Architecture
• Observability

On The Stack (as of 2026-11-06)

• American Express has 4 other listings on The Stack, 4 of them marked as offering visa sponsorship.
• 216 visa-sponsored jobs in the United Kingdom on The Stack, posted in the last 60 days.
• 197 visa-sponsored software engineer jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about American Express

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.