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Fuse Energy Supply

Senior/Lead Backend Engineer

Senior/Lead Backend Engineer at Fuse Energy, a renewable energy startup in London, building the core digital infrastructure of a next-generation energy supplier on AWS — including a real-time digital twin of generation and demand, third-party messaging interfaces, high-volume consumption data pipelines, and the backend of a consumer energy app.

AWS CDK Cloud DevOps Infrastructure as Code +1 skills

63K – 103K £

Lead Développeur Backend Python & AWS

Senior lead backend developer (Python & AWS) hired through IT services firm Infotel to support one of its clients in Le Mans. Day to day: designing event-driven architectures and REST APIs in distributed cloud environments, acting as the AWS technical referent and ensuring security.

Next Frontier Capital

Senior Lead Software Engineer - Backend Java

New North AmericaLead

Senior Lead Software Engineer on JPMorganChase's Consumer & Community Banking tech team in Jersey City: writes and reviews secure production Java code, provides technical direction, and drives adoption of enterprise AI-assisted engineering practices. Core stack includes Java, Kubernetes, CI/CD automation, and AWS.

Agile AI Automation AWS CI/CD +7 skills

Capital One National Association

Senior Backend Engineering Lead

New North AmericaLead

Senior Lead Software Engineer (Back End) at Capital One in Chicago, leading a portfolio of backend projects and a team of developers building microservices and cloud-based solutions for banking customers. Core stack includes Java, Python, SQL, Node.js, Go, Scala, AWS, Docker, and Kubernetes.

AWS Cloud Docker Java Kubernetes +5 skills

Nachway Consulting

Lead Java Backend Engineer - AI, Kafka & Redis Expert

New North AmericaContractLead

Nachway Consulting is hiring a Lead Java Developer for a hybrid, long-term contract in Phoenix, AZ. The role leads backend development with Java/J2EE, Spring Boot, and microservices plus cloud integrations, and needs hands-on Kafka, Redis, Python, and AI/GenAI exposure, backed by 10 years of experience and strong leadership skills.

AI Cloud Generative AI J2EE Java +5 skills

Capital One National Association

Lead Backend Engineer: Scalable Data Pipelines &AI

New North AmericaLead

Lead Backend Engineer at Capital One architecting, building, and scaling data pipelines and microservices using Java, Scala, Apache Spark, and Spring Boot on AWS. Day to day involves owning critical data infrastructure, integrating AI/ML models, mentoring a team, and optimizing cloud performance.

AI AWS Cloud Data Pipelines Java +5 skills

Citibank (Switzerland) AG

Lead Backend Java Developer at Citi

New HybridNorth AmericaLead

Citi is hiring a Backend Java Lead Developer in Mississauga (hybrid) to lead systems analysis and full software development lifecycle work using Core Java, Spring Boot, and Oracle, while mentoring junior developers and advising on security measures.

API DevOps Java Microservices Oracle +1 skills

Back End Developer

New UKContractLead

Contract Senior Backend Software Engineer (Java) joining a major automotive client's Identity Management Services team in Dunton, Basildon (4 days/week on-site). As technical lead, they design and build high-scale, secure Java/Spring identity services, own platform security and resilience, and mentor the team using Agile and DevOps practices.

Agile CI/CD Cloud DevOps GCP +8 skills

Next Frontier Capital

Lead Software Engineer - Workforce Experience Technology (Backend, AWS)

Lead engineer on JPMorganChase's Workforce Experience team in Dublin, designing backend services, data models, and AWS infrastructure for HR talent-management applications while driving AI-assisted engineering practices. Core stack: Java/Spring Boot, Python, Terraform, AWS, PostgreSQL/Neptune, CI/CD.

Agile AI Automation AWS CI/CD +14 skills

Lead Backend Engineer (Trading systems, 70L)

Lead Backend Engineer (70% hands-on, 30% leadership) at a seed-stage fintech building an AI-native trading platform in Bangalore: architect microservices and data models from scratch, build high-throughput real-time APIs and integrations, own systems end to end, and mentor engineers. Strong Golang and distributed-systems experience preferred.

AI API Data Modeling Distributed Systems Event Driven Architecture +6 skills

Senior Backend Java Tech Lead (Banking)

Backend Java tech lead for a banking client in Peru: advising an innovation center, enforcing clean-code practices (SOLID, design patterns), and driving development and maintenance of highly available banking services and APIs/microservices. Core stack is Java 17+, Spring Boot, reactive programming, Azure cloud services, with blockchain/Web3 integration exposure.

AKS API Azure BDD Bitbucket +17 skills

Next Frontier Capital

Lead Software Engineer - Backend Java Spring Boot, Kafka

New North AmericaLead

Lead backend software engineer on JPMorganChase's Commercial & Investment Bank Digital Post Trade Technology group, designing, building, and troubleshooting secure, scalable post-trade services in an agile team. Core stack is Java with Spring Boot and Kafka, plus NoSQL stores and optionally AWS.

Agile AWS Cassandra CI/CD Cloud +7 skills

Hands-On Engineering Team Lead, Backend & Microservices

New North AmericaLead

Group 107 is hiring a hands-on engineering team lead in New York to guide a team on a client project with Capitolis: roughly 60% hands-on backend coding plus architecture stewardship, mentoring developers, and driving delivery of scalable microservices and data systems.

Nationwide-Property-

Lead Software Engineer: AI-Driven Backend & Oversight

New RemoteNorth AmericaLead

Lead engineer at Nationwide Property & Appraisal Services doing hands-on Django backend development, owning features end-to-end, reviewing architecture, and overseeing other engineers — including contractors and AI-assisted work — in a regulated, compliance-focused domain. Remote within the United States, with a deliberate pace focused on quality and documentation.

Senior Software Engineer: AI-Driven, Scalable Backend Lead

New North AmericaLead

Lead software engineer on JPMorgan Chase's Consumer & Community Banking technology team in New York, serving as a core technical contributor building trusted, scalable backend products in a secure environment. The role drives AI-assisted development practices, oversees complex architectures, and coordinates across vendor and internal teams.

Next Frontier Capital

Lead Software Engineer - Backend Java, Markets Tech

New North AmericaLead

Lead backend software engineer at JPMorgan Chase building Java/Spring Boot microservices and distributed systems for the Equities Broker Dealer and Prime Finance platform (securities lending, trade lifecycle, clearing & settlement), while integrating AI/ML and GenAI (LLMs, RAG, vector databases) securely at enterprise scale.

Agile AI Analytics API Automation +32 skills

Next Frontier Capital

Lead Java Engineer — Frontend & Backend Architect

New North AmericaLead

Lead Java engineer on JPMorganChase's Wholesale Credit Risk Technology team in Jersey City, building secure, scalable risk products. Day to day: leading development and code reviews, driving automation, and championing CI/CD and security best practices across frontend and backend work.

Automation CI/CD

Lead Software Engineer - Backend Engineering - Java/Kotlin

New North AmericaLead

Lead backend engineer on JPMorgan Chase's Accelerator team (Chase), building customer-facing banking products with JVM languages (Java/Kotlin) in a cloud-native, multi-cloud environment. Day to day: domain modeling, scalable and secure architecture, zero-downtime releases, and reliability/performance work.

Cloud Cloud Native Fintech Java JVM +1 skills

Next Frontier Capital

Lead Backend Engineer - Java Spring Boot, Kafka

New North AmericaLead

Lead Software Engineer at JPMorgan Chase's Digital Post Trade Technology group in Jersey City, NJ: driving design, development, and delivery of scalable, secure post-trade products — building production-grade Java applications (Spring Boot, Kafka), reviewing code, and guiding architecture discussions with stakeholders.

The Bitcoin Street Journal

Senior Blockchain Backend Engineer - Lead Private Ledger

New HybridNorth AmericaLead

Senior technical leadership role at iCapital building an industry-wide distributed ledger for the private markets ecosystem. Day to day: designing private ledgers, building RESTful Python services, driving architecture with product/leadership, and mentoring engineers. Hybrid setup in Kentucky with Fridays remote.

API Api Design Blockchain Python REST