Senior Java Software Engineer

Qodea

full-time

Posted on: 10/21/2025

Location Type: Hybrid

Location: Manchester • 🇬🇧 United Kingdom

Visit company website

✨ AI Apply

Apply

Job Level

Senior

Tech Stack

ApacheAWSCloudDistributed SystemsDockerGoGoogle Cloud PlatformGraphQLJavaKafkaKubernetesMicroservicesNoSQLPrometheusScalaSpringSpring BootSpringBootSQL

About the role

What You’ll Do:
- Lead the architecture and evolution of scalable, high-performance Java backend systems for personalisation, including data ingestion, profile management, recommendation services, and dynamic content delivery.
- Utilize frameworks like Spring Boot, Apache Kafka for messaging, and RESTful API as well as Backend-for-Frontend (GraphQL) design principles.
- Drive cross-functional initiatives to integrate modern personalisation technologies, such as real-time behavioral analytics and A/B testing frameworks, using Java-based APIs and microservices.
- Define strategies to enhance the performance, reliability, and observability of personalisation services, ensuring low-latency, high-availability systems through Java optimizations and monitoring tools like Micrometer or Prometheus.
- Design and implement Java frameworks for evaluating personalisation effectiveness through both offline metrics and live A/B experimentation.
- Champion engineering best practices in Java development and mentor engineers across teams, raising the bar for code quality and system design.
- Shape long-term technical direction by staying ahead of trends in distributed systems, Java ecosystem advancements, and personalisation technologies—and bringing these innovations into production.

Requirements

What You’ll Need to Succeed
- Degree in Computer Science, Engineering, or a related technical field.
- Experience in developing large-scale java systems.
- Extensive hands-on experience working with content from personalisation and recommendation engines.
- Familiarity with technologies such as Apache Beam, Pub/Sub, and other large-scale data processing frameworks crucial for personalisation at scale.
- Expertise in backend development, with knowledge of Golang is a plus, to build robust and efficient recommendation systems.
- Proficiency with both SQL and NoSQL databases, to manage and query data for personalized experiences.
- Demonstrated experience building robust APIs (REST, GraphQL) and operating in modern cloud environments (GCP, AWS), using Kubernetes, Docker, CI/CD, and observability tools.
- Proven ability to influence engineering direction across teams and functions.
- Strong communication skills and the ability to align diverse technical stakeholders around a cohesive vision.
**Nice to Have**
- Specialization in personalisation-related areas and recommendation engines.
- Experience deploying personalisation solutions in production.
- Knowledge of end-to-end personalisation system design.
- knowledge of Scala

Benefits

**Financial:**
- Competitive base salary.
- Matching pension scheme (up to 5%) from day one.
- Discretionary company bonus scheme.
- 4 x annual salary Death in Service coverage from day one.
- Employee referral scheme.
**Health and Wellbeing:**
- Private medical insurance from day one.
- Help@Hand app: access to remote GPs, second opinions, mental health support, and physiotherapy.
- EAP service
- Cycle to Work scheme.
**Time Off and Flexibility:**
- 36 days annual leave (inclusive of bank holidays).
- An extra paid day off for your birthday.
- Ten paid learning days per year.
- Flexible working hours.
- Market-leading parental leave.
- Sabbatical leave (after five years).
- Work from anywhere (up to 3 weeks per year).
**Development and Recognition:**
- Industry-recognised training and certifications.
- Bonusly employee recognition and rewards platform.
- Clear opportunities for career development.
- Length of Service Awards
**Extra Perks:**
- Regular company events.
- Tech Scheme.
Diversity and Inclusion StatementAt Qodea, we champion diversity and inclusion. We believe that a career in IT should be open to everyone, regardless of race, ethnicity, gender, age, sexual orientation, disability or neurotype. We value the unique talents and perspectives that each individual brings to our team, and we strive to create a fair and accessible hiring process for all. If you feel we can improve in any way, please reach out to our careers team via email at careers@qodea.com or connect with us on LinkedIn via our Qodea Company Page.