Build backend systems with Kotlin or Java, Kafka, PostgreSQL, Redis, and microservices for a crypto savings and crypto-backed lending platform. This hands-on technical lead defines architecture, remains close to the code, and leads a small team of engineers.

Lead Software Engineer for the PRIIP Cloud platform, owning full-stack development with TypeScript/Node.js, React, Java/Kotlin, REST APIs, event-driven architectures, AWS, Docker, and Kubernetes. The team builds a cloud-based PRIIP documentation and reporting system for regulated financial services, collaborating with compliance, quant, and product specialists. This role leads a multidisciplinary team of engineers and subject matter experts.

Lovable★4.0 (43)· London

Uses Go, Rust, TypeScript; AWS, Azure, Google Cloud, Cloudflare; Kubernetes, Terraform, Temporal, OTEL, CI/CD; PostgreSQL, ClickHouse, Firestore, Spanner, BigQuery. Builds the platform for Lovable Enterprise enabling secure, cloud-agnostic deployment, defining architecture for sandboxing, networking, encryption, identity, and mentoring engineers.

NatWest Group★3.7 (1.2k)· London

You'll work with Mainframe hardware (DASD, SAN/FICON, IBM z), automation scripting (Python/Shell), infrastructure as code, GDPS, and CI/CD pipelines. As part of NatWest Digital X, you'll engineer hardware solutions for the Mainframe environment, applying automation to improve products. This technical lead role guides a team but no team size is specified.

Design, configure and manage Mainframe Hardware solutions including DASD, SAN/FICON connectivity, and network infrastructure, using automation scripting (Python or Shell). You will engineer infrastructure-as-code for the Mainframe environment at NatWest Digital X, supporting hardware migrations between IBM z Mainframes and GDPS architectures. This is a technical lead role.

Lovable★4.0 (43)· London

Build enterprise deployments using Go, Rust, and TypeScript on AWS, Azure, and Google Cloud, with Kubernetes, Terraform, and Temporal. You will build the platform that allows large customers to run Lovable securely and at scale across every major cloud provider.

Starling★3.5 (66)· London

Work with Swift (iOS) and Kotlin/Java (Android), native mobile security APIs and cryptography, and public cloud IaaS. You will design, build, and maintain security controls for the company’s Android and iOS mobile banking applications as part of the Cyber Security team.

NiCE★3.4 (30)· London

You'll work with Python, Go, Java, C#, Bash, PowerShell, AWS (EC2, ECS, Lambda, DynamoDB), CloudFormation, Terraform, Jenkins, GitLab CI/CD, CircleCI, Docker, Kubernetes, Prometheus, Grafana, ELK stack, Cloudwatch, and optionally Grafana Observability Suite, Splunk, Datadog, PagerDuty, Rundeck, Ansible, Puppet, Chef. As an individual contributor, you'll run production, improve reliability, and support multiple large distributed software applications for NiCE, a provider of customer experience, financial crime, and public safety software.

Nuffield Health★3.2 (939)· London

You will work with Java 21, Spring Boot, Maven, RabbitMQ, Apache Camel, Git, GitHub Actions, Docker, Azure DevOps, Terraform, Ansible, and SQL databases. The Integration Squad designs, develops, and supports microservices and APIs for Nuffield Health's digital healthcare platforms, enabling secure connectivity across internal and third-party systems.

Cato Networks seeks a Senior Full Stack Engineer for their secured access team to design and build web security solutions and internal infrastructure platforms using Java, Go, Spring Boot, GraphQL, PostgreSQL, MySQL, MongoDB, and Redis. The role involves end-to-end development from large-scale data processing to web interfaces, working on enterprise SaaS microservices at scale across security products and infrastructure. Requires 6+ years backend development experience, SaaS microservices expertise, and familiarity with relational/non-relational databases in CI/CD environments.

Work with AWS, Kubernetes, Docker, Terraform, CloudFormation, Python, Go, Jenkins, GitLab CI/CD, Prometheus, and Grafana. You will run production environments, build and automate infrastructure, and improve reliability for NICE’s suite of distributed software solutions.

You will work with Python/Java, Docker, ECS/EKS, GitLab, CI/CD, Terraform, AWS, and Kafka to build a cloud-native customer onboarding platform for a banking client. As a Principal Engineer, you provide technical leadership across multiple squads and mentor a team of approximately 10 junior engineers.

Apple★4.1 (14k)· London

You’ll use Java, Swift, C, Go, or Python, plus Kubernetes and cloud deployment/monitoring tools, to build Apple’s privacy-focused cloud platform. Your team develops iCloud infrastructure, including Advanced Data Protection and Apple silicon hardware integrity for Private Cloud Compute, impacting over a billion users. No team size or scope is mentioned.

You will work with Java, JavaScript, Python/Shell/PowerShell, AWS, CI/CD pipelines, and API/microservices debugging, with nice-to-have exposure to Docker, Kubernetes, Terraform, and CloudFormation. The role is a Support Engineer focused on technical troubleshooting across applications and infrastructure.

DeepL★3.8 (4)· London

The role works with Databricks, Apache Iceberg, Kafka, dlt, Python, Terraform/Terragrunt, Docker, and Kubernetes. The team builds and operates DeepL’s data platform infrastructure, including the lakehouse, data ingestion, and AI-powered connectors and workflow integrations used across the company.

Site Reliability Engineers will work with Python, cloud technologies, the Athena ecosystem, Linux, and Kubernetes, focusing on automation, optimization, and process re-engineering using AI for a Banking/Finance/Trading Market Risk Platform.

You will work with Python, Java, Go, Kubernetes, Docker, and cloud platforms to build large-scale Identity & Access Management (IAM) systems, authentication, authorization, and access control services for a global financial platform.

JPMorgan★3.9 (20k)· London

You will work with Java 17+, Spring/Spring Boot, REST APIs, AWS, Terraform, Infrastructure as Code, CICD, TypeScript, and React in a cloud platform engineering team that improves reliability, resilience, and observability of customer-facing digital banking services for Chase UK.

Staff Software Engineer working with Python, Java, Go, Kubernetes, and Docker to design and build large-scale Identity & Access Management (IAM) systems for a global financial platform at a fast-growing FinTech.

Apple★4.1 (14k)· London

Use Golang, C++, Java, or Python along with Kubernetes, Cassandra, Zookeeper, Kafka, Redis, and other open-source tools to build and support Apple's next-generation infrastructural platform for iCloud and backend services at hyperscale. The role includes technical leadership of projects or small teams, developing resilient API-driven services.

Apple★4.1 (14k)· London

Work with Kubernetes (GKE/EKS), GCP/AWS, Java, Swift, Python, or TypeScript, Nginx, Envoy, Prometheus, Docker, Terraform, Pulumi, and CI/CD pipelines. The SRE team supports Private Cloud Compute (PCC), Apple's privacy-preserving cloud intelligence platform, ensuring availability and automation of critical systems.

American Express★4.1 (9.7k)· London

You will work with PowerShell, Python, AWS, Azure, Google Cloud, Java, HTML5, JavaScript, .NET, DevOps, and SRE tools. The Enterprise Technology Services organization powers the company’s growth by delivering technology, digital, and data capabilities globally, and your team provides 24x7 support for technology engineering, architecture, and infrastructure to ensure high product availability.

You will work with PowerShell, Python, Java, HTML5, JavaScript, .NET, AWS, Azure, Google Cloud, network protocols, automation tools, and DevOps practices. The Enterprise Technology Services team provides 24x7 global support for American Express’s technology engineering, infrastructure, and cloud services to ensure high product availability.

You will work with Java 11+, Spring Framework, Hibernate, REST microservices, AWS (Lambda, ECS, EKS), Terraform, and Kubernetes (deployments, ingress, autoscaling, monitoring). This role is with LA International Computer Consultants Ltd, an IT consultancy. No specific team or project scope is listed.

TEKsystems★3.8 (4.7k)· London

Building distributed backend services using Java, Kotlin, and TypeScript with AWS and Infrastructure as Code (AWS CDK). The team designs and operates large-scale cloud services supporting millions of customers globally.