76 to 100 of 296 Java Jobs in the City of London

genuinely matters. You’ll join an agile, client-embedded team delivering modern, scalable systems. Your work will include: Designing and building backend services using Java (12+) and Spring Boot Contributing to front-end development (ideally Angular, though React is welcome) Working across the full SDLC: requirements, build, test, deploy, support … with on-site collaboration when it adds value. 🏡 You’ll likely be a mid-level full stack engineer who: Has strong commercial experience with Java and modern frameworks Is comfortable being client-facing and explaining technical decisions Enjoys working across backend and frontend, not just one layer Cares about code ...

banking, iGaming, startups, or enterprise companies performing real time processing. Experience You will be expected to have the following: 6+ years commercial experience with Java Good understanding of JVM (memory model, concurrency, data structures) Spring framework, Spring Boot Maven Knowledge of REST APIs & Microservices MongoDB JUnit and TDD Nice ...

Role : Senior Java Engineer Location : Osterley, UK Contract role - Inside Ir35 Hybrid work: Min 4 days from client location Experience : 10+ Start date: Immediate Key Responsibilities: Highly skilled Senior Java Developer with hands-on experience in Spring Boot, WebFlux, and Reactive Programming. Experience in optimizing application delivery and security using … Mentor junior engineers and contribute to technical leadership across the team. Required Skills & Experience: 10+ years of professional software development experience. Strong proficiency in Java, spring boot Solid understanding of Docker Compose, Kubernetes, and Amazon EC2. Expertise in at least one major cloud platform (AWS, GCP, or Azure). Proven ...

Java Developer/Software Engineer (AWS React Full Stack) London/WFH to £80k Are you a technologist Java Developer looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start … small team of finance and technology entrepreneurs with a hugely successful track record. As a Java Developer you will join a small team to build systems from the ground up, working across the full technology stack with a focus on designing, developing and deploying cloud-native microservices that form ...

Senior Java Developer | Travel-tech Senior Java Developer | £300-400/day | Outside IR35 | Fully Remote within Europe A fast-growing travel-tech organisation is embarking on a major product evolution and is looking for an experienced Senior Java Developer to join their team. This is a key engineering role … working on high-traffic, consumer-facing systems used across Europe. What You’ll Work On Lead the evolution of a large-scale Java, Springboot, and MySQL , ensuring it can support a new universal architecture across multiple products. Design and implement new backend features, Unit Testing, API testing, and system improvements ...

Senior Java Engineer (Kafka, Spring Boot, Microservices) We’re hiring a Senior Java Engineer to build secure, real-time systems using Java, Spring Boot, and Apache Kafka. You’ll design scalable event-driven microservices, collaborate across the stack, and shape a platform used in mission-critical environments. … office when you prefer in-person time. Team meetups are planned in advance, flexibility is the default. 💡 Required Experience 10+ years’ experience as a Java Backend Engineer/Senior Java Developer Proven track record building and scaling Kafka-based architectures in production Deep expertise with Spring Boot (Security ...

Months Experience - 20+ Years Job Description - Strong experience as Technical Business Analyst and Architect - Expertise in AWS and Azure - Enterprise data modeling and integration - Java, Microservices, APIs - Agile/Scrum delivery - Banking, Financial Services, Media domain experience preferred Education ...

following: Experience designing, improving and maintaining robust data pipelines Strong SQL programming skills. Knowledge of other programming languages such as Python, C++ and Java, is beneficial Possesses a strong understanding of Snowflake - beneficial Experience managing small teams of Data Engineers Strong experience working in a cloud environment and knowledge ...

Containerisation/Orchestration with Kubernetes Extensive CI/CD work (ideally with Jenkins, or equivalents) Scripting/coding experience with Python, Bash, Shell or Java Strong knowledge across Automation, Networking, Linux and Security These positions range in salary offering £80-120K, dependant on experience and Seniority, and operates ...

years professional software development experience Strong proficiency in high-performance Python (deep ecosystem knowledge and best practices) Experience with at least one JVM language (Java, Kotlin, Scala) is an advantage Background in distributed systems and large-scale compute frameworks Familiarity with Docker, Kubernetes, Linux environments, and CI/CD automation ...

advisory) Support and shape proposals during early stage bids What you’ll bring: Extensive engineering experience within one or more of the following languages: Java, JavaScript/TS or C# Extensive cloud deployment experience across AWS, Azure or GCP Experience with IaC, CI/CD, TDD Highly communicative and consulting ...

background in cloud platforms (AWS or GCP) and deep knowledge of Kubernetes — ideally including the ability to build operators. Strong coding skills in Golang, Java, or C#, with experience in distributed systems. Expertise in operational excellence: observability, reliability, automation. This is an outstanding opportunity for a Senior Software Engineer join ...

look outside of this. They are; Have studied Computer Science or Maths at a Top University Have strong OOP – language is not important; Python, Java, C C#. Strong problem-solving capability Some SQL experience Have had internship or placement experience (non-negotiable) Salary range is £45K-£55K + bonus + ...

Proven delivery of ForgeRock v8 upgrade programmes Strong identity onboarding/migration capability CI/CD, Terraform/Ansible, containerisation, scripting (Groovy/Java/JavaScript) Excellent understanding of OAuth2/OIDC/SAML and modern access control patterns Experience delivering within regulated financial services environments Strong communication, leadership ...

Profile Senior Data Engineer A successful Senior Data Engineer should have: Experience within the Insurance industry Strong proficiency in programming languages such as Python, Java, or Scala. Experience with cloud platforms like Azure. Knowledge of big data technologies such as Hadoop, Spark, or Kafka. Proficiency in SQL and database management ...

Computer Science, Information Technology, or related field. Technical Skills: Proficiency in RPA tools ( UiPath , Blue Prism , Automation Anywhere ). Strong programming skills in Python , Java , or .NET . Knowledge of SQL/NoSQL databases and API integrations. Other Skills: Excellent problem-solving and analytical abilities. Strong understanding of SDLC ...

field teams to deliver and iterate on live deployments Requirements 5+ years’ experience building production-grade software Expertise in backend development using C++, Rust, Java, or Python Strong experience with front-end frameworks (React, Angular, or equivalent) Proven ability to work across distributed systems and real-time applications Comfortable working ...

cloud engineering. Strong understanding of distributed systems, performance and failure modes, and experience with observability tooling. Comfortable with several languages (e.g. Python, Java, Kotlin, TypeScript) and technologies like Kafka, Flink, Redis and clustered Postgres. Familiarity with networking concepts (routing, load balancing, service‐to‐service communication); bonus points for leading teams ...

years in technology advisory in Data Science/AI roles. Hands‐on experience with advanced AI and end‐to‐end solutions. Strong Python/Java skills and familiarity with TensorFlow/PyTorch. Proficient in ML/DL models, databases, ETL, and data pipelines. Experience with cloud (AWS/Azure/ ...

future engineering team (tooling, processes, and architecture) ✅ Core Technical Requirements Proficient in one or more modern backend languages (e.g. Python, Go, TypeScript, Java, Rust) Strong systems design skills — you can model real-world systems and reason about scale, latency, and trade-offs Comfortable building from zero — greenfield work doesn ...

live whiteboarding sessions, asynchronous collaboration, and diverse tech stacks across multiple sectors. Tech stack highlights: AWS services: EMR, Glue, RedShift, Kinesis, Lambda, DynamoDB Languages: Java, Python, Scala, Spark, SQL Big data architecture and ETL pipelines What we’re looking for: Strong problem-solving and analytical skills Experience designing and deploying ...

data warehousing approaches. Experience deploying data-processing platforms from major vendors such as AWS, Azure, GCP, or Databricks. Proficiency in one or more of Java, Scala or Python, with the ability to contribute hands-on when required. A demonstrable commitment to developing people through coaching, mentoring, and team leadership. Desirable ...

overseeing the Full Software System Lifecycle of a product, demonstrating your commitment to continued development and improvement Demonstrable experience in the use of Java Middleware, API, Docker, and MQ systems Good working knowledge of performance and security in Enterprise Systems Experience of working with networks: LAN & WAN/Internet ...

database development, automation and reporting using Power BI and Excel including VBA. Expert in at least one programming language like C#, Python, Java including JavaScript along with any exposure to one or more of Azure DevOps (Pipelines, CI/CD) and GIT. Good understanding of Investment products. Tasks that ...

apps, AIP) Some experience in object-oriented design, software engineering, and experience in at least one relevant coding language (e.g. Python/PySpark, R, Java, Typescript, SQL) Experience of UX design and/or data visualisation Strong understanding of data engineering, data modelling, and platform integration across enterprise environments Demonstrated ...