Remote Senior Java Engineer (Remote) in Cardiff

Remote Senior Java Engineer (Remote) in Cardiff

Cardiff Full-Time No working from home possible
The Investigo Group

At a Glance

  • Tasks: Build secure, high-performance backend systems using Java and contribute to innovative data solutions.
  • Company: Join The Investigo Group, a dynamic tech coalition leading in AI and data solutions.
  • Benefits: Enjoy competitive salary, remote work, generous holiday, and continuous learning opportunities.
  • Other info: Flexible working options and a culture that values diversity and inclusion.
  • Why this job: Make an impact with cutting-edge technology while collaborating with a passionate team.
  • Qualifications: 7+ years in backend engineering, strong Java skills, and experience with microservices.

Location: Remote (UK)

Job Type: Full-time, Permanent

Salary: Competitive, based on experience + benefits + bonus potential

About Us:

Come and be a part of The Investigo Group (TIG), a dynamic coalition of cutting-edge tech firms specialising in Platform, Software, Data, AI and other bleeding-edge technology solutions. Our innovative prowess spans the globe while proudly hailing from the United Kingdom. The group is multi-functional with a large portfolio of B2B products and services.

Diversity, Equity, and Inclusion (DEI) are at the heart of The Investigo Group (TIG). We're dedicated to creating a workplace where people from all backgrounds are not only welcome but empowered to excel. We actively seek diverse talent, promote fairness, and foster an inclusive environment where every voice matters, driving innovation and progress in our dynamic tech community.

About You:

You’re an experienced backend engineer who thrives in collaborative environments and enjoys solving complex technical problems. You’re confident in your skills with Java and bring solid experience with microservices, messaging systems, and scalable architecture. You’re someone who:

  • Thinks deeply about software design and architecture.
  • Can clearly articulate your thinking to both engineers and non-engineers.
  • Enjoys mentoring, supporting teammates, and fostering a strong engineering culture.
  • Has a curiosity for emerging technologies and is eager to learn (and teach).
  • Feels comfortable working independently, taking initiative, and owning solutions end-to-end.
  • Believes in writing clean, testable code and values continuous improvement.

About The Team:

You’ll be joining a small but mighty cross-functional engineering team within Collaboraite, focused on developing a collaborative data and analytics platform. The work involves cutting-edge challenges; real-time event handling, secure data ingestion, working with LLMs and Computer Vision models, and crafting high-performance indexing and search pipelines.

About The Role:

We’re hiring a Senior Java Engineer to join our Collaboraite team, building the next generation of secure, high-performance, and scalable data analytics platforms. This is a hands-on engineering role with real scope for technical leadership. You’ll help design, build, and deliver features and services that power AI-enabled products used by some of the most respected organisations in the UK.

Key Responsibilities:

  • Build and maintain scalable, secure, and high-performance backend systems using Java, with additional exposure to Go and Python.
  • Contribute to architectural decision-making and ensure alignment with engineering best practices.
  • Build APIs and services in a microservices ecosystem, often using Spring Boot, Quarkus, and modern messaging systems.
  • Support CI/CD practices, including infrastructure as code, containerisation, and GitHub Actions or Jenkins.
  • Collaborate cross-functionally with Product, ML Engineers, and Designers to define, plan, and deliver features.
  • Mentor junior engineers and champion best practices in testing, documentation, and code quality.
  • Troubleshoot performance and reliability issues across distributed systems.

Success in This Role Looks Like:

  • Delivering robust, scalable, and secure features that contribute directly to the platform’s growth and stability.
  • Influencing technical direction by contributing to architectural decisions and raising the standard of engineering quality across the team.
  • Proactively identifying improvements in system performance, developer experience, or technical debt—and driving them through to implementation.
  • Mentoring and supporting team members, fostering a culture of collaboration, continuous learning, and engineering excellence.
  • Communicating effectively with stakeholders across disciplines, translating complex technical ideas into clear, actionable insights.
  • Taking ownership of projects and features from design through to deployment, monitoring, and refinement—delivering value quickly without compromising maintainability.

What We're Looking For:

  • 7+ years of hands-on backend engineering experience, with deep expertise in Java and modern backend ecosystems.
  • Proven experience building microservices and event-driven systems (e.g., with Kafka, RabbitMQ, or NATS).
  • Strong relational database skills (PostgreSQL), including schema design and SQL optimisation.
  • Experience with RESTful API design and implementation, ideally with Spring Boot or Quarkus.
  • Familiarity with containerisation (Docker, Kubernetes, Helm) and DevOps practices.
  • Comfortable working in Agile, cross-functional teams.
  • SC clearance (or eligibility to obtain it) is a requirement for this role.

Soft Skills:

  • Clear communicator who can explain technical concepts to both technical and non-technical stakeholders.
  • Natural mentor who shares knowledge and brings others along.
  • A thoughtful engineer who balances speed with maintainability.
  • A proactive mindset—always looking for ways to improve systems, codebases, or processes.
  • Ability to break down complex problems and drive solutions through to delivery.

Security Clearance Requirements:

Please note that holding current SC clearance is not essential at the point of application, but eligibility is required. This role requires the successful candidate to be eligible for Security Check (SC) clearance.

Flexible Working:

We offer both hybrid and remote working models.

Private Medical Inclusive Culture:

Enjoy an inclusive culture and environment.

Holiday:

Generous holiday allowance.

Learning:

Access to continuous learning and development opportunities.

Bonus Potential:

Bonus potential based on performance and business-related factors.

Discounts:

Discounts on a wide range of products and services.

Pension:

Pension scheme contributions with Government Top-Up.

More Benefits:

Explore additional benefits on our career site.

Please note that the talent acquisition team is managing this vacancy directly and we do not require agency support. Candidates who are successful will be required to undergo relevant security checks.

Our Process:

Our talent acquisition team will be in touch if you're successful, and the team will arrange a short screening call (max 30 minutes) to learn more about you, what you’re looking for, and answer any questions you may have. If all goes well, the team will share your profile with the hiring manager for review. Our interview process is tailored to each role but typically the first half is run remotely with a final stage on-site.

Equal Opportunities:

Here at TIG we are committed to equal opportunities and value diversity, equity and inclusion at our company. We do not discriminate based on race, religion, colour, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.

Remote Senior Java Engineer (Remote) in Cardiff employer: The Investigo Group

The Investigo Group (TIG) is an exceptional employer that champions innovation and inclusivity, offering a dynamic remote work environment for Senior Java Engineers. With a strong focus on employee growth through continuous learning opportunities, competitive benefits, and a culture that values collaboration and diverse perspectives, TIG empowers its team members to excel in their careers while contributing to cutting-edge technology solutions. Join us to be part of a forward-thinking community where your skills will make a meaningful impact in shaping the future of secure data analytics.

The Investigo Group

Contact Details:

The Investigo Group Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Remote Senior Java Engineer (Remote) in Cardiff

Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work at The Investigo Group or similar companies. A friendly chat can open doors and give you insider info on job openings.

Tip Number 2

Prepare for those interviews! Brush up on your Java skills and be ready to discuss your experience with microservices and scalable architecture. Practice explaining complex concepts in simple terms—this will impress both technical and non-technical interviewers.

Tip Number 3

Show off your passion for learning! Mention any recent projects or technologies you've explored, especially in AI or data analytics. This shows you're not just about coding but also about growing and adapting in this fast-paced field.

Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our innovative team at The Investigo Group.

We think you need these skills to ace Remote Senior Java Engineer (Remote) in Cardiff

Java
Microservices
Messaging Systems
Scalable Architecture
Spring Boot
Quarkus
CI/CD Practices

Some tips for your application 🫡

Tailor Your CV:Make sure your CV is tailored to the Senior Java Engineer role. Highlight your experience with Java, microservices, and any relevant projects that showcase your skills. We want to see how you fit into our tech-savvy team!

Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about this role and how your background aligns with our mission at The Investigo Group. Let us know what excites you about working with cutting-edge technology.

Showcase Your Problem-Solving Skills:In your application, don’t just list your skills—show us how you've used them to solve complex problems in past roles. We love engineers who can think deeply about software design and architecture, so share some examples!

Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it gives you a chance to explore more about our culture and values!

How to prepare for a job interview at The Investigo Group

Know Your Java Inside Out

Make sure you brush up on your Java skills before the interview. Be ready to discuss your experience with microservices, messaging systems, and scalable architecture. Prepare to explain your thought process behind software design and architecture clearly.

Showcase Your Problem-Solving Skills

Be prepared to tackle complex technical problems during the interview. Think of examples from your past work where you successfully solved issues or improved processes. This will demonstrate your ability to think critically and contribute to the team.

Communicate Clearly and Confidently

Practice explaining technical concepts in simple terms. You’ll need to communicate effectively with both engineers and non-engineers, so being able to articulate your thoughts clearly is key. Consider doing mock interviews with friends to refine your communication skills.

Emphasise Collaboration and Mentorship

Highlight your experience in mentoring junior engineers and fostering a strong engineering culture. Share specific examples of how you've supported teammates and contributed to a collaborative environment, as this aligns with the values of The Investigo Group.