18 of 18 Permanent Relational Database Jobs in the City of London

grade SaaS and analytics solutions, primarily within the insurance domain. Working in an agile, cloud-first environment, you will develop high-performance microservices, optimise database performance, implement robust security protocols, and contribute to architectural decisions that support scalable, resilient systems. This role offers the opportunity to work on advanced … front-end and third-party integrations Develop microservices aligned to modern architecture patterns Implement business logic, validation layers and data processing components Ensure optimal database performance across relational and non-relational systems Implement modern authentication and authorisation frameworks including OAuth2, SAML and JWT Develop secure, testable ...

. Proven experience building high-throughput systems such as: Applications streaming +100GB via Kafka, or Managing +100TB data lakes, or Operating against +10TB relational/time-series/OLAP databases. Strong data streaming experience (Kafka preferred; alternatives such as Azure Service Bus, RabbitMQ, Kinesis, or Pulsar considered). Deep … understanding of multithreading and concurrency in .NET — particularly SPANs and Channels. Strong relational database experience (Postgres preferred; SQL Server, Oracle, MySQL/MariaDB considered). Experience working in industries that handle significant data peaks or throughput spikes. Strong monitoring and observability experience (Grafana preferred; Datadog, Dynatrace ...

longer-term modernisation of the architecture. Non-Negotiables: Strong software engineering experience (C# preferred but Java, or C++ considered) Strong SQL/relational database experience Careful approach to testing and safe refactoring Clear, concise technical and verbal communication Have previously worked for a Financial Service organisation ...

customers with accessible credit products and has an excellent reputation in the market. They’re looking for an experienced Data Engineer to join their database team and take ownership of production-critical systems across AWS. 🔧 The Role You’ll design, modernise and optimise scalable database solutions, with … Server migrations to AWS Performance tuning, monitoring & optimisation You’ll work closely with cloud, engineering and application teams, playing a key role in shaping database standards and architecture across the business. ✅ What They’re Looking For 5+ years’ experience in relational database design & support Strong ...

working knowledge of CI/CD, IaC, containerisation technologies You have experience of working with messaging/streaming platforms (e.g. Kafka, RabbitMQ) and designing relational databases (e.g., MySQL, PostgreSQL) You're proficient with cloud-based systems (preferably AWS) You're collaborative and pragmatic with great communication skills What ...

immutability, monads, cats/Scalaz familiarity advantageous). Experience designing and consuming REST APIs, JSON validation/serialization (Play JSON, Circe). Experience with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimisation. Proven experience writing unit and integration tests (ScalaTest, Specs2, Mockito, etc. ...

Cats or Scalaz is a plus). Experience designing and consuming REST APIs , including JSON validation/serialization (Play JSON, Circe). Proficiency with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimization. Proven experience writing unit and integration tests (ScalaTest, Specs2, Mockito, etc. ...

legacy systems in a high-performance environment. ✅ What You’ll Bring 🔹 5+ years’ experience in software development (Java essential) 🔹 Strong experience with SQL/relational databases (SQL Server, Snowflake or similar) 🔹 Experience supporting production systems (debugging, fixing, releases) 🔹 Understanding of CI/CD, testing, and engineering best practices 🔹 Ability ...

product-driven, fast-paced environment (e.g., startup or tech company). Willingness to work with Kotlin (current server-side language). Experience with relational databases. Working knowledge of cloud platforms, preferably Google Cloud Platform. Strong commitment to code quality, efficient architecture, and performance optimisation. Bonus Points Advanced knowledge ...

object-oriented programming languages (C#, C++, Python) Self-motivated with ability to work both independently and under direction Excellent interpersonal skills Optional: Knowledge of relational databases and SQL Knowledge of finance and capital markets ...

pipelines, including translating manual/spreadsheet reporting into structured data solutions. Strong knowledge of BI and data technologies (SQL, Power BI, Azure stack) and relational database/reporting architectures. Confident in engaging and influencing stakeholders across business, change, and data teams; able to explain technical concepts clearly ...

experience at tech and product-driven companies Proficiency with TypeScript, Node.js, and React.js (Framer Motion, Tailwind and Radix is a strong plus) Proficiency with relational databases like Postgres Experience with cloud infrastructure (we use AWS and Terraform) As a person, you... Are first and foremost a builder Are excited ...

Financial Services is essential; knowledge of Life & Pensions is highly desirable. Proficiency in CI/CD pipelines, version control (Git/Azure DevOps), and relational/non-relational databases. Understanding of integration patterns (pub/sub, API-led, event-driven) and security standards (OAuth2, JWT, TLS, API security ...

maintain features across our web app (Next.js) and mobile app (React Native) Contribute to our Python backend and help improve API performance Collaborate on database design and write efficient queries in Postgres Work with AWS services to deploy and maintain our infrastructure Ship polished, user-facing features that directly … professional experience Familiarity with JavaScript and Next.js (React or React Native experience is a plus) Basic knowledge of Python Understanding of SQL and relational databases Eagerness to learn cloud services (AWS experience is a plus but not required) Ideal Candidate Quality Focus: Obsessive attention to detail and commitment ...

Build polished, responsive frontend experiences using Hotwire (Turbo & Stimulus) and Tailwind CSS Design and build full-stack features across our Rails application, from database to UI Collaborate with product and design to translate requirements into intuitive, well-crafted interfaces Build and consume APIs that power both internal tooling … things look and feel, not just whether they work Comfortable working with HTML, CSS, and JavaScript across a modern Rails frontend stack Familiarity with relational databases (PostgreSQL preferred) and writing efficient queries Comfortable building and consuming APIs as part of delivering full-stack features Experience writing automated tests (RSpec ...

mapping documentation between source and target systems. Required Skills & Experience Strong experience in data migration, data cleansing, and data transformation projects. Advanced SQL and database querying skills. Experience working with large datasets and relational databases (SQL Server, Oracle, etc.). Strong data analysis and data profiling skills. ...

evolution and scaling of our backend infrastructure Design and implement performant APIs and services Build infrastructure to support cutting-edge AI capabilities Optimise database performance and query efficiency Continuously improve reliability and observability through enhanced monitoring and alerting Collaborate cross-functionally to ensure our infrastructure supports continuous product innovation … proficiency in TypeScript and Node.js Hands-on experience with cloud infrastructure and infrastructure as code (we build on AWS using Terraform) Deep knowledge of relational databases (we use PostgreSQL) Familiarity with serverless architectures (we love lambdas!) Solid understanding of security best practices and performance optimisation As a person, you... ...

information down for a non-technical audience Provide data-driven analysis and insights to optimize campaign performance Collaborate with other analysts, Marketing managers, and database developers on both strategic initiatives and ongoing data infrastructure enhancement projects Manage ad-hoc data requests to help meet a variety of needs such … troubleshooting data oddities, QA'ing, modeling, and more Your Qualifications: 2+ years Marketing Data Analytics experience Strong proficiency in SQL, Excel, PowerBI, and relational databases Attention to detail and a history of managing complexity Demonstrated leadership and self-direction; capacity for learning new skills and a willingness to share ...