Ideally you will have managed teams working with Java and modern backend technologies, a proven track record of leading engineers, and a pragmatic, calm approach to problem-solving.

Technical Requirements

• Strong previous commercial experience with Java/managing JVM engineers
• Promote DevOps (build/run it) methodology and practices
• Experience designing and delivering microservices-based architectures
• Solid understanding of CI/CD pipelines, including build automation, testing, and deployment
• Familiarity with modern engineering practices: automated testing, infrastructure as code, monitoring, and observability

Technology Stack

• Backend development across modern JVM frameworks including Spring, Spring Boot, and Micronaut, primarily using Java
• Cloud-native services deployed on Azure, with orchestration via Kubernetes and system monitoring/observability using tools such as Dynatrace
• Data persistence and storage using a mix of relational and NoSQL technologies, including SQL Server and MongoDB
• Frontend applications built with contemporary JavaScript frameworks and languages such as React, Next.js, Angular, and TypeScript
• In-memory data grids and caching solutions leveraging technologies like Redis and Ignite

If of interest, please apply with your updated CV and we can arrange a call?

,

The post Engineering Manager appeared first on La Fosse.

We are partnered with a tech client who are looking for a Lead Backend Engineer with strong experience in Java and/or Kotlin to take a key technical leadership role within a backend-focused engineering team

Technical Leadership & Influence

• Lead design discussions, technical deep dives, and knowledge-sharing initiatives
• Anticipate technical risks and proactively propose scalable, secure solutions
• Influence product and platform decisions through strong technical insight

Hands-on Software Development

• Develop high-quality backend services using Java (17+) and frameworks such as Spring Boot or Micronaut
• Build resilient, high-throughput services supporting secure transaction processing
• Design and implement integrations with external systems including payment gateways, banks, and fraud platforms

Core Skillset:

• Proven experience as a Lead Java Engineer in backend-heavy, multi-level engineering teams
• Strong expertise in Java 17+, with Spring Boot or Micronaut; Kotlin experience is a bonus (or willingness to learn)
• Hands-on experience with event-driven architectures, Kafka, microservices, and enterprise integration patterns
• Solid understanding of payment systems and PSP integrations, including fraud, tokenisation, and settlement flows
• Experience with cloud infrastructure (Azure preferred), Kubernetes, and CI/CD pipelines
• Working knowledge of relevant regulatory standards such as PCI DSS, SCA, and PSD2s
• Experience working in Agile/Scrum environments with a DevOps and test-driven mindset

Nice to have

• Experience with IAM platforms such as Okta, Auth0, Keycloak, or ForgeRock
• Knowledge of identity and security standards including OpenID Connect, OAuth2, JWT, SAML, and MFA
• Broader cloud exposure across Azure, AWS, or GCP

If this is of interest, please send an updated CV and we can set up a call?

,

The post Java Kotlin Lead appeared first on La Fosse.

This is a 6+ month contract position paying £400 per day outside IR35 with 3 days onsite in Paddington, London

Responsibilities: 

• Develop and maintain custom Shopify app logic and middleware services for system-to-system integration.
• Design and implement data flows using REST/GraphQL APIs, webhooks, and event-driven patterns (e.g. Kafka).
• Define and manage data contracts, schema mappings, and transformation logic between Shopify and backend systems.
• Collaborate with backend engineers to design integration endpoints, manage authentication, and handle errors.
• Implement observability and monitoring for integration APIs (using tools like Dynatrace, New Relic, or Azure Monitor).
• Troubleshoot and optimise data exchange processes across multiple systems.
• Support testing, validation, and refinement of end-to-end integration flows.

Experience required:

• Focus: Architecture, API design, mentoring, delivery – Shopify experience
• Core Skills: Backend Development (Micronaut preferred): Java, Gradle, REST & Kafka scaffolding, Health checks
• API Design & Integration: OpenAPI / AsyncAPI specs, Shopify integration patterns
• Testing & Quality: Unit tests, code coverage, mocking strategie, Contract testing, test data generation
• Architecture & Patterns: Domain-driven design, event-driven architecture, Reusable components (e.g., Catalogue Validator)
• Dev Standards & Governance: Linting, formatting, secure coding practices. 

,

The post Senior Java Engineer appeared first on La Fosse.

I’m currently partnered with an Accounting Software Company who are looking for a Java developer to join their small team.

The ideal candidate will have a passion for quality code and experience in Test Driven Development and Behaviour Driven Development.

You will be working with…
* Java 8+ / Spring Boot ecosystem (and some Kotlin)
* Azure Repos, Kubernetes, Docker, Helm, Terraform
* Cosmos DB, SQL Server
* Gradle, Jenkins, Azure Devops, SonarQube

Nice to have:
* Experience with Developer Portals
* API First Design tools like Stoplight, Readme, Sw

If this sounds like you click “APPLY” or send your c.v. to claudia.nichols@lafosse.com

The post Java developer- Fully remote- upto £80,000 appeared first on La Fosse.

The ideal candidate will have previous insurance experience and be well versed in working with both Java v8/v11 and Spring boot v4/v5.

Please note this is working inside IR35, initial 6-month contract and paying £625-650pd.

This will be a predominantly remote contract with the very infrequent requirement to travel to the office on the South Coast.

Essential Skills:

• Java (ideally v8 and v11)
• RESTbased API’s
• Spring boot (ideally v4 and v5)
• Microservices
• CI/CD and relevant tooling with Jenkins, Docker or Terraform
• AWS cloud services experience

If you have the above experience, please get in touch with your updated CV or email me on charlie.durman@lafosse.com

The post Java Developer – Contract Role – Inside IR35 – Fully Remote appeared first on La Fosse.

We are seeking a highly skilled and experienced Senior Software Engineer to join our dynamic team in London. As a Senior Software Engineer for a Payments FinTech, you will play a crucial role in the design, development, and maintenance of our software solutions, contributing to the growth and success of the business.

Responsibilities:

• Collaborate with cross-functional teams, including product managers, architects, and fellow engineers, to design and develop high-quality software solutions in line with business requirements.
• Take ownership of end-to-end software development lifecycle, including requirement analysis, system design, coding, testing, deployment, and maintenance.
• Write clean, efficient, and maintainable code using best practices and industry standards.
• Contribute to architectural decisions and provide technical leadership to the team.
• Mentor and guide junior engineers, fostering a culture of knowledge sharing and continuous learning.
• Collaborate with stakeholders to understand business needs and translate them into technical requirements.
• Stay updated with the latest industry trends, emerging technologies, and best practices to drive innovation and continuous improvement.
• Requirements:

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
• Minimum of 7 years of professional experience in software development, with a focus on backend systems and applications.
• Strong expertise in Java, Kotlin, Spring Boot, and related frameworks.
• Solid understanding of software development principles, design patterns, and best practices.
• Experience with database technologies (SQL, NoSQL) and data modeling.
• Proficiency in cloud technologies, preferably AWS.
• Familiarity with DevOps practices and tools, such as Docker and Kubernetes.
• Excellent problem-solving and debugging skills.
• Strong communication and collaboration skills, with the ability to work effectively in cross-functional teams.
• Prior experience in the fintech industry is highly desirable.

Benefits:

• Competitive salary package commensurate with experience.
• Opportunity to work in a fast-paced, innovative fintech company with a focus on cutting-edge technology.
• Collaborative and inclusive work environment that fosters professional growth and development.
• Flexible working hours and work-from-home options.
• Health insurance and pension scheme.
• Continuous learning and development opportunities.

If you are a passionate Senior Software Engineer looking to make a significant impact in the fintech industry, join our dynamic team and help shape the future of financial services.

The post Principal Software Engineer – Java / Kotlin appeared first on La Fosse.

Lead Java Developer

Salary: £70,000/£75,000

I’m currently working with a top Law Firm who are recruiting for a Senior Java developer to work on some exciting applications. The business are pioneering change with Data Science projects underway and an exciting journey to the cloud.

Requirements

5+ years of professional experience building backend systems in Java

Proficiency with PostgreSQL, AWS, CI/CD, Agile, Kubernetes

Experience leading projects and mentoring juniors

If this sounds like you click “APPLY” or send a copy of your c.v. to claudia.nichols@lafosse.com

The post Lead Java Developer appeared first on La Fosse.

Lead Java Developer

Salary: £70,000/£75,000

I’m currently working with a top Law Firm who are recruiting for a Senior Java developer to work on some exciting applications. The business are pioneering change with Data Science projects underway and an exciting journey to the cloud.

Requirements

5+ years of professional experience building backend systems in Java

Proficiency with PostgreSQL, AWS, CI/CD, Agile, Kubernetes

Experience leading projects and mentoring juniors

If this sounds like you click “APPLY” or send a copy of your c.v. to claudia.nichols@lafosse.com

The post Lead Java Developer appeared first on La Fosse.

You will be working on a number of new really exciting projects within a fully agile team.

Please note this is working inside IR35, initial 6 months (very likely to extend) and paying £650-675pd. This will be a hybrid role and requirement to be on site 2 days per week.

Essential Skills:

• Java
• GCP or AWS cloud services experience
• RESTbased API’s
• Spring boot
• Microservices
• CI/CD and relevant tooling with Jenkins, Docker or Terraform

If you have the above experience please get in touch with your updated CV.

The post Java Developer – Contract appeared first on La Fosse.

The developer will be within a world class engineering team on several really exciting and greenfield projects.

No prior Kotlin experience is required just a willingness to upskill, strong Java developers will be considered.

Please note this is working Outside IR35, fully remote and paying £650-700pd. This will be an initial 6 month rolling contract.

Essential Skills:

• Kotlin (ideally)
• Java
• Kafka
• Kubernetes
• Spring boot
• Microservices
• CI/CD and relevant tooling with Jenkins Docker and Terraform

Desirable:

• React or Typescript

If you have the above experience please get in touch with your updated CV.

The post Kotlin/Java Developer – Contract – Outside IR35 appeared first on La Fosse.

You will be working as a bridge between the development and senior leadership team to provide WebMethods expertise and also carry out hands on Java development.

Excellent communication skills are vital requirment for the role.

Please note this is working inside IR35, fully remote and paying £575-600 per day. This will be an initial 12 month contract.

Essential Skills:

• WebMethods
• Java (ideally)
• Unit Testing
• Excellent communication skills

If you have the above experience please get in touch with your updated CV.

The post WebMethods Integration Developer appeared first on La Fosse.

You will be working as a bridge between the development and senior leadership team to provide WebMethods expertise and also carry out hands on Java development.

Excellent communication skills are vital requirment for the role.

Please note this is working inside IR35, fully remote and paying £500 per day. This will be an initial 12 month contract.

Essential Skills:

• WebMethods
• Java (ideally)
• Unit Testing
• Excellent communication skills

If you have the above experience please get in touch with your updated CV.

The post WebMethods Developer appeared first on La Fosse.