526 to 550 of 2,290 Java Jobs in London

Senior Software Engineer

Hiring Organisation
Holt Executive
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
occasional on-call responsibilities. Experience Required Degree in Computer Science, Software Engineering, or a related technical discipline. Strong hands-on experience developing software using Java within a real-time operational environment. Strong experience with JavaScript and Node.js development. Experience working with both Windows and Linux operating systems. Good understanding ...

Senior Quality Assurance Engineer

Location
Greater London, England, United Kingdom
focus on automation testing Strong understanding of software testing concepts, methodologies, and tools Strong programming skills in at least one programming language (Python, TypeScript, Java, etc.) Experience with test automation frameworks and tools (e.g. Playwright, Selenium, Appium, Pytest, TestNG, etc.) Experience with API testing tools such as Postman, SoapUI ...

Software Engineer - X Money

Location
Greater London, England, United Kingdom
testing, monitoring, deployment, and secure data handling. BASIC QUALIFICATIONS Proficiency in distributed systems for high-scale, low-latency environments; languages like Rust, Go, Python & Java, and high volume streaming systems. 2+ years of experience working on large scale consumer applications. PREFERRED SKILLS AND EXPERIENCE 5+ years of experience working ...

Senior Lead Infrastructure Engineer - Market Data - AWS / Snowflake

Location
Greater London, England, United Kingdom
assisted recommendations before implementation, escalating when uncertain and ensuring outcomes align to resiliency, security, and auditability expectations Network architecture and protocols Programming languages (e.g. Java, Python, C++) Market Data/messaging products (e.g. TREP, Vela, RedLine, Bloomberg BPIPE, Solace, AMPS, etc.) Market Data vendors and their key products (e.g. Bloomberg ...

Senior FIX Onboarding Specialist - Vice President

Location
Greater London, England, United Kingdom
tackle design and functionality problems independently with little to no oversight. Practical cloud native experience. Experience with scripting or programming languages (e.g., Python, Java) for automation and testing. Preferred qualifications, capabilities, and skills Certification in FIX protocol or related areas is a plus. Equal Employment Opportunity We are an equal ...

Cloud Data Architect (Manager) - BIP xTech

Hiring Organisation
Business Integration Partners
Location
London, UK
Employment Type
Full-time
architect scalable batch and streaming pipelines using ETL/ELT patterns. Proficiency in one or more programming or query languages (e.g. SQL, Python, Java, R).Experience managing architecture quality processes, such as design authorities or architecture review boards. Strong client-facing skills with the ability to build trusted relationships ...

Senior Software Engineer, C/FICCO Data

Location
City Of London, England, United Kingdom
both new and existing systems. Provide on‐call support as needed. Qualifications A minimum of 2+ years’ experience using at least one of Python, Java, and C++, and can work comfortably in multiple programming languages A track record of working directly with end customers, scoping and delivering production systems ...

Analytics Services Platform Engineer

Hiring Organisation
G Research
Location
London, UK
Employment Type
Full-time
Glue Data CatalogExposure to DataOps practices and collaboration with Data Engineering teamsFamiliarity with GPU-accelerated analytics using Spark with GPUs or RAPIDSProgramming experience with Java, Scala, C#, Python or GoWhy join us? Highly competitive compensation plus annual discretionary bonusLunch provided (via Just Eat for Business) and dedicated barista bar35 days ...

Data Engineer

Location
Greater London, England, United Kingdom
QuickSight. Experience with cloud data warehouses like AWS Redshift, Snowflake, or BigQuery. Some knowledge of Kafka and a programming language (e.g., Python or Java) for building data workflows and automation. Familiarity with AWS services such as S3, Glue, Lambda, EMR, or streaming tools like MSK/Kinesis. Experience with basic ...

Senior Software Engineer, C/FICCO Data

Hiring Organisation
DRW
Location
London, UK
Employment Type
Full-time
both new and existing systems. Provide on-call support as needed. Qualifications: A minimum of 2+ years' experience using at least one of Python, Java, and C++, and can work comfortably in multiple programming languagesA track record of working directly with end customers, scoping and delivering production systems in fast ...

Mission Systems Engineer (Foundry Pipelines & Operator Apps) for NATO with security clearance

Location
Greater London, England, United Kingdom
pipelines, ontology, Compute Modules, Code Repositories and Workbooks, application development. This one is core to the role. Fluency in at least one of Python, Java, SQL, TypeScript or JavaScript, Bash, Go. Three years or more of professional software or forward-deployed/solutions engineering, shipping systems into production. The knack ...

Senior Software Engineer (Platform)

Location
Greater London, England, United Kingdom
shipping products in small, fast moving teams. Proven track record delivering and maintaining production systems in at least one systems language (Go, C++, Rust, Java, C#, etc.), with clear, idiomatic designs. Architecture & design: Able to reason about trade offs and produce clean, evolvable service boundaries. Cloud & DevOps: comfortable working ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
experience Undergraduate degree in Computer Science (or related field) with English primary instruction (strongly desired) 2+ years of experience/fluency in Scala/Java Proficient with relational and NoSQL databases Experience working with container‐based solutions Experience using libraries such as ZIO, Akka, Play Framework Experience with cloud services ...

Software Engineer III - Back-end Engineer - Chase UK

Location
Greater London, England, United Kingdom
concepts and applied experience Recent hands‐on professional experience as a back‐end software engineer Experience in coding in a recent version of the Java programming language Experience in designing and implementing effective tests (unit, component, integration, end‐to‐end, performance, etc.) Excellent written and verbal communication skills in English ...

Senior Software Engineer I - Servicing Platform

Hiring Organisation
Wise
Location
London, UK
Employment Type
Full-time
those listed below and are eager to learn more we do want to hear from you! Strong proficiency in backend programming languages like Java, Python or Go. Passion for building at scale – You've worked on high-throughput systems and know what it takes to keep services fast and reliableDeep ...

Senior Application Security Engineer

Hiring Organisation
Fortinet
Location
London, UK
Employment Type
Full-time
Security Researcher or Engineer3+ years of experience with manually auditing source code to find security issues or programming skills in one or more of: Java, .NET, Python or JavaScript frameworks. Strong understanding on OWASP TOP 10 vulnerabilities. Strong understanding of common API security risksStrong understanding on Cloud-Native application architecture ...

Senior Software Engineer - iCloud Platform - Observability

Location
Greater London, England, United Kingdom
maintain highly concurrent and throughput-intensive services Triage, investigate, and remediate production and operational issues Minimum Qualifications Strong background in developing software in Java or a similar language (e.g. Swift, C, or C++) Strong background in designing, building, and operating backend services and distributed systems Strong background in streaming data ...

Full Stack Software Developer, Client Solutions

Location
Greater London, England, United Kingdom
with Angular (preferred), React or other structured modern front-end framework Comfortable with enterprise-grade backend technologies such as C#/.NET (preferred) or Java Good understanding of modern UI patterns, state management, component-driven development and web performance optimisation Solid understanding of application architecture, data modelling and integration patterns ...

Senior Python Developer

Location
Greater London, England, United Kingdom
core programming language Experience in Financial Services/Highly regulated environment is highly beneficial Proficiency in one additional programming language is preferred (e.g. C++, Java, etc.) A proven track record of delivering scalable, high-quality solutions in production environments Experience mentoring and guiding developers, with strong leadership skills ...

Software Engineer III - Backend Engineering - Chase UK

Location
Greater London, England, United Kingdom
concepts and applied experience Recent hands‐on professional experience as a back-end software engineer Experience in coding in a recent version of the Java programming language Experience in designing and implementing effective tests (unit, component, integration, end‐to‐end, performance, etc.) Excellent written and verbal communicationskills in English Understanding ...

Senior Salesforce Engineer

Hiring Organisation
Stepstone UK
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
user interfaces. Use Salesforce APIs to integrate with other systems used in the organization, and work with the following tech/tools/methodology; Java, JavaScript, HTML, CSS, TDD, Agile, pair programming, Bitbucket, Bamboo Adhere to Salesforce best practices, maintain code documentation, and write/maintain test classes ...

The Core Engineering - Software Engineer - Vice President - London

Hiring Organisation
Goldman Sachs
Location
London, UK
Employment Type
Full-time
with both technical and business audiences, and comfortable working with multiple global stakeholders. Expert Knowledge in One Or More OfHands-on programming experience in Java or PythonSignificant solutions architecture and system design experienceExperience of using Agentic AI coding tools - e.g. Claude Code, Co-Pilot Agent Mode, DevinExperienced with Cloud Technologies ...

Lead Software Developer

Hiring Organisation
Inspire People
Location
South Croydon, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
specific programming language or technology is required, as strong software development skills are considered transferable. The current technology environment includes HTML, CSS, Python, Flask, Java, Spring Boot, REST APIs, RabbitMQ, DB2, AWS. Responsibilities of a Lead Software Developer Contribute to software design, technical decision-making and the refinement of requirements. ...

Senior Customer Success Architect

Location
Greater London, England, United Kingdom
demonstrated record of successfully engaging with enterprise accounts. Competent in programming languages and concepts that underpin modern web and mobile development (e.g. SQL, JavaScript, Java, Python, Android, iOS, RESTful APIs). Execution and customer service oriented, able to effectively prioritise and complete customer deliverables in alignment with customer requirements ...

Research Software Engineer

Location
Greater London, England, United Kingdom
distributed systems. Strong software-design instincts: modular code, tests, CI/CD, observability. Fluency in Python plus one systems language (C++, Rust, Go or Java). Hands-on with container orchestration and schedulers (Kubernetes/K8s, SLURM, or similar). Comfortable profiling performance, optimising I/O, and automating workflows. ...