1 to 25 of 203 Relational Database Jobs in London

Application Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
groups, service accounts, and permissions * Application re-permissioning following identity, domain, or directory changes * Application architecture, dependency mapping, and impact analysis * SQL Server and relational database concepts including databases, schemas, tables, views, Key Responsibilities: * Take ownership of applications assigned for migration or remediation * Assess application architecture, authentication methods … delivering remediation activities related to identity, Active Directory, Entra ID, SSO, DNS, certificate, and domain changes. * Experience supporting applications with SQL Server or other relational database back ends, including connectivity, authentication, service accounts, and dependency analysis. * Experience supporting web-hosted applications, IIS, SSL/TLS certificates, load balancers ...

Identity & Application Integration Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
groups, service accounts, and permissions * Application re-permissioning following identity, domain, or directory changes * Application architecture, dependency mapping, and impact analysis * SQL Server and relational database concepts including databases, schemas, tables, views, Key Responsibilities: * Take ownership of applications assigned for migration or remediation * Assess application architecture, authentication methods … delivering remediation activities related to identity, Active Directory, Entra ID, SSO, DNS, certificate, and domain changes. * Experience supporting applications with SQL Server or other relational database back ends, including connectivity, authentication, service accounts, and dependency analysis. * Experience supporting web-hosted applications, IIS, SSL/TLS certificates, load balancers ...

Systems Data Analyst – SQL / NoSQL / Data Migration

Hiring Organisation
Precise Placements
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £420 per day
work with Developers, Architects and business specialists to establish how the existing system operates and support its migration into modern cloud and document-based database technologies. Key responsibilities Analyse legacy applications, databases and source systems. Reverse-engineer database structures where documentation is limited. Document schemas, tables, columns, relationships … with Developers, Solution Architects, Data Architects and business SMEs. Support data quality, governance and application-modernisation objectives. Essential experience Strong hands-on SQL and relational database experience. Previous database reverse-engineering or legacy system analysis. Detailed schema and technical database documentation. Source-to-target mapping ...

ICT Senior Database Administrator

Hiring Organisation
Great Ormond Street Hospital for Children NHS Foundation Trust
Location
London, WC1N 3BH, United Kingdom
Salary
£66274.00 to £73496.00
summary Great Ormond Street Hospital for Children NHS Foundation Trust is seeking an experienced ICT Senior Database Administrator to join our ICT team. This is an exciting opportunity to play a leading role in maintaining and developing the database platforms that support critical clinical and non-clinical services … across one of the world's leading children's hospitals. In this role, you will help ensure that our database environments remain secure, resilient, high performing and fit for the future. As ICT Senior Database Administrator, you will work within a highly specialist environment, supporting a large ...

Java Developer

Hiring Organisation
Matchtech Mobility
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£540 - £640 per day
development experience with Java and object-oriented programming principles. Experience building applications using: Spring Boot Spring MVC RESTful APIs Microservices Strong understanding of relational databases and SQL. Experience working with databases such as MySQL, PostgreSQL, or Oracle. Experience using Git, Bitbucket, or similar version control platforms. Familiarity with Maven ...

Database Platform Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Research is a fast‐growing, software‐driven organisation where data is at the heart of everything we do. We are looking for an experienced Database Platform Engineer to join our Data Services team. In this role, you will help design, build and operate the mission‐critical database platforms … underpin research, a global platform and business operations. This role focuses on providing highly available, performant and secure data services. Our environment spans multiple database technologies – PostgreSQL, Microsoft SQL Server, MySQL, and CockroachDB – deployed across both on‐premises infrastructure and the cloud (AWS). The role is highly collaborative ...

Software Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
design of APIs, data pipelines, and distributed systems with a strong focus on performance, reliability, and maintainability Define and enforce best practices around database design, query optimisation, and data modelling across relational databases (PostgreSQL) Evaluate emerging technologies and architectural patterns, making evidence-based recommendations to the broader engineering … formulated, testable, and readable code using appropriate software design patterns Build and maintain APIs, microservices, and data pipelines Write complex SQL queries and optimise database performance Debug and resolve issues across our applications, including production incidents Review, maintain, and refactor existing code to support improved or new features ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
production experience with modern Web stacks (TypeScript, React, Node.js, or Python/FastAPI). Strong API design experience (REST, GraphQL, gRPC, WebSocket) and relational/non-relational database design (PostgreSQL, SQLite). Systems & Mobile Architecture (Android ART) Proficiency in Kotlin or Java on native Android environments, including … WinTAK, OmniTAK) or military telemetry protocols (Cursor-on-Target/CoT, STANAG 4586). Familiarity with containerisation at the edge (K3s, Podman) or local database layers (Room, RocksDB). Knowledge of Defence safety standards ( Def Stan 00-056/00-055 ) and ALARP risk management. Competitive Pay: Salaries reviewed ...

Senior Full Stack Developer (React, JavaScript & C#.NET)

Hiring Organisation
Pontoon
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 per day
GitHub Actions, or similar tools. Cloud Platforms: Proficient in Azure or AWS (Azure preferred). Databases: Strong skills in SQL Server, PostgreSQL, or other relational databases. Key Responsibilities Design & Develop: Create and maintain full stack applications using React JS and C#.NET Core. Build Services: Develop high-performance backend services ...

Java Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
preferred). Experience with Spring Boot, Spring Framework, and microservices architecture. Strong understanding of REST APIs, distributed systems, and event-driven architectures. Experience with relational databases such as PostgreSQL, MySQL, or Oracle. Experience with cloud platforms such as AWS, Azure, or Google Cloud Platform. Familiarity with containerisation technologies including ...

Senior Java Developer IRC298565

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
message brokers, message order, idempotency), Saga Pattern (distributed transactions for eventual consistency), CQRS (Command Query Responsibility Segregation), and orchestration vs choreography. Solid experience with relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Cassandra). Strong experience designing, documenting, and implementing APIs (RESTful services). DevOps & Cloud Hands ...

Senior Java Developer IRC298567

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
microservices. CQRS: understanding of Command Query Responsibility Segregation and managing eventual consistency. Orchestration vs Choreography: ability to choose and implement appropriate service coordination strategies. Relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Cassandra). Strong experience designing, documenting, and implementing APIs (RESTful services). Hands-on experience ...

Senior .Net Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
with an eye for good UX• Experience in designing and building distributed systems using Microsoft C#, .NET Core and Web API• Experience working with relational databases such as Oracle or SQL Server• Experience with deploying applications to Cloud infrastructure such as Azure or AWS• Any exposure to application containerisation ...

Engineer, DevOps

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
with designing and operating software in a Cloud Provider, such as AWS, Azure, or GCP Strong skills with cloud-based data storage, such as: Relational Databases, NoSQL Stores, data caches, etc. Familiarity with Agile development methodologies and practices. Excellent analytical abilities and problem-solving skills, capable of addressing complex ...

Senior Software Engineer (Back End)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Comprehensive SDLC experience across design, development, QA, deployment, and production support.* Ability to balance rapid delivery with architectural rigour and long‐term maintainability.* Strong relational database design and optimisation skills (MSSQL, MySQL).* Proven problem‐solving capabilities and ability to validate ideas through POCs.* Experience building automated testing ...

Senior Lead Java Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Java 17+ and frameworks like Spring Boot, Spring MVC and Apache Deep understanding of RESTful services and understanding microservices architecture Deep understanding of relational databases, SQL language and ORM tools Deep understanding of message brokers Experience with front‐end development using HTML, CSS, JavaScript frameworks Experience with Test Driven ...

Senior Software Engineer - Risk & FX

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
software development experience. 2+ years of building microservices with Java. Proficient in additional programming languages, such as Ruby or Scala. Working knowledge of relational databases such as MySQL. Experience designing event‐based and streaming solutions using Kafka. Experience building applications that run in Kubernetes. Hands‐on experience delivering high ...

Senior AI Engineer - Perm UK

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
experience designing and building RESTful APIs and microservices using frameworks such as FastAPI , Flask or Django . Strong SQL skills with experience designing performant relational database solutions. Commercial experience with AWS and/or Azure cloud platforms. Experience designing distributed systems and scalable architectures. Experience with Docker , Kubernetes ...

Informatica Engineer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600/day 600 per day inside IR35
Informatica Intelligent Cloud Services (IICS). Proven experience designing and developing ETL and data integration solutions. Strong SQL skills and experience working with relational databases such as Oracle, SQL Server or PostgreSQL. Experience with data migration, data warehousing and data quality processes. Understanding of data modelling principles and metadata ...

Director, Application Development Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
roles (e.g., Head of Engineering, Technical Lead). Expert‐level proficiency in Java and frameworks like Spring Boot for building microservices. Strong expertise with relational databases (Oracle) and data modelling (canonical data models, JSON). Deep experience with enterprise messaging platforms (Kafka, IBM MQ). Proven experience implementing ...

Full Stack Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
design, together with a strong grounding in security patterns (OAuth 2.0, OIDC, Entra ID, RBAC) and secure coding practices.* **Data:** Comfortable working with relational databases and data-heavy application features, with strong SQL and an eye for query performance.* **AI Development:** Experience building with LLMs and AI-enabled solutions ...

Software Engineer (Backend)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
fintech, payments, banking, trading, or other financial infrastructure domains. Familiarity with event‐driven architectures, message queues, and stream processing. Experience with PostgreSQL (or similar relational databases) and data‐intensive workloads. Experience running services on a major cloud provider (e.g. AWS, GCP) and with containerisation/orchestration (e.g. Docker, Kubernetes ...

Senior C# Developer- - SC Cleared

Hiring Organisation
Triad
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65000/annum
.NET Framework, including .NET Core Strong understanding of object-oriented programming principles. Experience with software development methodologies such as Agile or Scrum. Familiarity with relational databases (e.g., SQL Server, MySQL, PostgreSQL) and ORM frameworks (e.g., Entity Framework). Excellent problem-solving and analytical skills. Good communication and collaboration abilities. ...

Senior Platform Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
implementing scalable, reliable distributed, heterogeneous systems. · Deep knowledge of cloud architecture and development best practices, design principles, and patterns. · Experience working with everything from relational databases through to a multitude of NoSQL stores. · Experience working with technologies, including message queues, event streams, authentication, caching, API hosting, containers, lambdas, FaaS ...

Principal C# Engineer / Snr Dev Lead

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
service design. Strong experience developing REST APIs and integration patterns, including contract‐first API design, versioning, validation, error models and backward compatibility. Strong document database knowledge, preferably MongoDB, including schema design, indexing, aggregation, performance tuning, consistency trade‐offs and operational considerations. Strong relational database and SQL skills ...