Senior Engineer

LDMS

Senior Engineer solving complex technical problems in a hybrid role. Developing solutions using Java, Spring Boot, and PostgreSQL for a leading financial business in Cardiff.

Posted 7/23/2026full-timeCardiff • 🇬🇧 United KingdomSenior💰 £68,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong expertise in Java and Spring Boot, with a focus on designing and delivering complex features while maintaining high technical quality. Proficient in relational databases, observability practices, and CI/CD pipelines, with effective communication skills for both technical and non-technical audiences.

Highest-signal resume keywords

Java ExpertiseSpring Boot DevelopmentPostgreSQL Database DesignCode Review and MentoringCI/CD Pipeline Management

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Applicant Tracking System Keywords

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Hard Skills

JavaSpring BootPostgreSQLCode ReviewCI/CDObservabilitySecurity PracticesPerformance OptimizationAI Coding ToolsCloud Systems

Soft Skills

Clear CommunicationDecision MakingMentoringTeam CollaborationFeedback Delivery

Tools & Technologies

PrometheusGrafanaJenkinsKeycloakAWS S3

Industry Keywords

Financial Software DevelopmentScalabilityReliabilitySecurityCloud Hosting

Tech Stack

Tools & technologies

AWSCloudGrafanaJavaJenkinsPostgresPrometheusReactSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact

**Key Responsibilities**These may change with the needs of the business, but the main areas are:
**Technical Skills**
Design solutions to complex features and write the design documentation that other engineers build from.
Hold the technical quality bar for your team through code review, pairing and the example you set.
Spot gaps in testing, security or performance across your team's work, and fix them or make the case for fixing them.
Work within the technical direction and standards set by your Lead Engineer and feedback into them where you see a better approach.
Watch for scaling, reliability and operability problems before they cause incidents and help keep the team's work observable and secure.
**Delivery**
Lead the delivery of large features, involving other engineers.
Turn vague or unclear requirements into concrete engineering work the team can pick up.
Keep the team's delivery standards up, and step in when they slip rather than waiting to be asked.
Make sound decisions when the information is incomplete and keep work moving when requirements change or things get blocked.
**Impact**
Make a real difference to your team's output, quality and technical ability.
Help junior and mid engineers get better through pairing, honest feedback and giving them work that stretches them.
Contribute to department-wide engineering standards and documentation.
Help shape your team's goals and technical plans and connect the work back to what the business is trying to achieve.
Take part in hiring, running technical interviews and giving well-reasoned assessments of candidates.
**Communication**
Explain technical decisions clearly to both engineers and people without a technical background.
Write things down well, such as designs, technical documentation and runbooks that other people can pick up and use.
Help the team reach agreement on hard or contested technical questions.
Give clear, specific and kind feedback in code reviews.
Inform your Engineering Team Lead promptly when a piece of work is failing behind, rather than letting it surface late.
**AI and Innovation **
Explore new tools, including AI, and help bring the genuinely useful tools into your team’s day-to-day work while being honest about where they fall short.
Follow the team's agreed approach to AI-assisted work so that what gets produced stays consistent, secure and good quality.
Use AI coding tools such as Claude in your day-to-day development, moving faster while keeping design quality, security and maintainability high.

Requirements

What you’ll need

**Essential**
Strong, hands-on expertise in Java (preferably Java 25+) with a solid command of Spring Boot.
Strong relational database skills, ideally PostgreSQL, including schema design and migrations.
A track record of designing and delivering complex features, with design work that other engineers could build from.
Experience holding a quality bar through code review, pairing and example, and mentoring more junior engineers.
Comfortable working within an established architecture and set of standards and improving them where you see a better way.
Familiar with observability in practice, and how services are instrumented, monitored and debugged (for example Prometheus, Grafana).
Experience keeping a codebase secure and current, including dependency upgrades and vulnerability scanning.
Comfortable working with CI/CD pipelines (for example Jenkins) and a sound understanding of performance and scalability.
Clear communicator, able to explain technical decisions to engineers and non-technical colleagues.
Comfortable making sound decisions when the information is incomplete.
**Desirable**
Experience using AI coding tools such as Claude well as part of day-to-day engineering.
An understanding of what it takes to build software in a financial environment.
A widening base across the stack, such as performance, data, security, reliability and cloud so you can weigh up decisions beyond your own area.
Experience working with cloud-hosted systems on AWS, and an understanding of hosting, scaling and cost trade-offs.
Exposure to React and TypeScript, enough to work sensibly with patterns defined.
Familiarity with tools such as Keycloak for identity and AWS S3 for storage.

Benefits

Comp & perks

Discretionary bonus*
25 days annual leave (plus bank holidays)
Opportunity to purchase additional annual leave
1 day birthday leave
1 day charity leave
Private health insurance
Employee Assistance Programme (EAP)
Season ticket loan for transport
Eye care
Pension (3% / 5% contribution)
Salary sacrifice schemes (cycle to work and electric vehicle)
Monthly socials
Charity events
*The discretionary bonus will be pro-rata'd during your first year with the Company.