Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions
Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions

Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions

London Full-Time 85000 - 100000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and build secure Java backend services for cutting-edge cybersecurity solutions.
  • Company: Join a global leader in cybersecurity, shaping the future of secure SaaS products.
  • Benefits: Enjoy competitive salary, equity options, healthcare, and a collaborative work environment.
  • Why this job: Make a real impact on global security while growing your skills in a dynamic team.
  • Qualifications: 7+ years in software engineering with strong Java and backend development experience required.
  • Other info: Onsite role in London, perfect for those eager to innovate and lead in tech.

The predicted salary is between 85000 - 100000 £ per year.

TechHeads is proud to partner with a global cybersecurity leader on a high-impact opportunity for a Senior Software Engineer. This permanent role based onsite in central London (5 days a week), offers the chance to work shoulder-to-shoulder with a world-class team on complex, secure SaaS systems powering global enterprises.

As a Senior Backend Engineer, you’ll play a key role in designing and building greenfield backend services using Java and Spring Boot, with a strong emphasis on DevOps, automation, and performance at scale. You will help shape technical direction, lead by example in code quality, and champion best practices across the team.

You’ll be working on the core of next-gen cybersecurity products, including enterprise-grade systems built from the ground up. With a focus on innovation and engineering excellence, this role offers real technical ownership and the chance to make architectural decisions that scale globally.

You’ll be part of a forward-thinking, collaborative team where ideas are shared, voices are heard, and initiative is rewarded. This is an opportunity to grow fast, work on meaningful problems, and expand your skills in a technically rich environment.

If you’re looking to elevate your career, build secure and scalable systems, and play a key role in a global product roadmap, we want to hear from you.

Responsibilities:
  • Design, develop, and maintain Java-based backend services using Spring Boot, REST/GraphQL, Kafka, PostgreSQL, and RabbitMQ.
  • Contribute to infrastructure modernisation efforts, working closely with DevOps teams on Kubernetes, CI/CD pipelines, and legacy system migrations.
  • Innovate across the stack, taking ownership of key projects and delivering performant, scalable solutions.
  • Lead engineering best practices including coding standards, unit testing, code reviews, and system architecture discussions.
  • Support, coach, and mentor junior developers, fostering a culture of technical excellence and collaboration.
  • Work closely with cross-functional teams, including product and engineering groups in different countries/regions, to ensure alignment and execution.
  • Build and deploy secure, resilient APIs (REST/GraphQL) and optimise the full software development lifecycle through automation.
Requirements:
  • 7+ years of professional experience in software engineering, with a strong focus on Java backend development.
  • Solid understanding of Spring Boot, Kafka, RabbitMQ, PostgreSQL, and modern API design patterns.
  • Hands-on experience or familiarity with DevOps tools and concepts – e.g. Kubernetes, Git-based CI/CD, cloud infrastructure (AWS/GCP/Azure).
  • Strong grasp of software security principles, system performance optimisation, and infrastructure reliability.
  • Experience working on large-scale, production-grade systems with distributed architectures.
Nice to Have:
  • Exposure to tools like Elasticsearch/Kibana, Hadoop/HBase, OpenSearch, or VPN/proxy architectures.
Ideal Candidate will:
  • Bring technical vision, initiative, and a passion for exploring and implementing emerging technologies.
  • Be a natural technical leader with experience mentoring engineers and driving engineering quality across teams.
  • Enjoy solving complex problems and have a product mindset with an eye toward continuous improvement.
Compensation:

Salary: £85,000 - £100,000 DOE

Benefits:

Equity, Healthcare and More

If you would like to be considered for this position, please share a copy of your updated CV to thomas@techheads.ie

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Contact Detail:

TechHeads Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions

Tip Number 1

Familiarise yourself with the specific technologies mentioned in the job description, such as Java, Spring Boot, and Kafka. Being able to discuss your hands-on experience with these tools during an interview will demonstrate your suitability for the role.

Tip Number 2

Showcase your understanding of DevOps practices, especially around CI/CD pipelines and Kubernetes. Prepare examples of how you've implemented these in past projects, as this will highlight your ability to contribute to infrastructure modernisation efforts.

Tip Number 3

Emphasise your experience with mentoring junior developers and leading engineering best practices. Be ready to share specific instances where you’ve fostered a culture of collaboration and technical excellence within your team.

Tip Number 4

Prepare to discuss your approach to solving complex problems and your product mindset. Think of examples where you've made architectural decisions that improved system performance or security, as this aligns well with the responsibilities of the role.

We think you need these skills to ace Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions

Java Development
Spring Boot
REST/GraphQL API Design
Kafka
RabbitMQ
PostgreSQL
DevOps Practices
Kubernetes
CI/CD Pipelines
Cloud Infrastructure (AWS/GCP/Azure)
Software Security Principles
System Performance Optimisation
Infrastructure Reliability
Distributed Architectures
Technical Leadership
Mentoring and Coaching
Collaboration with Cross-Functional Teams
Problem-Solving Skills
Continuous Improvement Mindset

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with Java, Spring Boot, and any relevant DevOps tools. Emphasise your contributions to large-scale systems and any leadership roles you've taken on.

Craft a Compelling Cover Letter: In your cover letter, express your passion for cybersecurity and how your skills align with the role. Mention specific projects where you've demonstrated innovation and technical ownership.

Showcase Relevant Projects: If you have worked on greenfield projects or have experience with modern API design patterns, be sure to include these in your application. Highlight your role and the impact of your contributions.

Highlight Soft Skills: Since the role involves mentoring junior developers and collaborating with cross-functional teams, mention your communication skills and any experience you have in coaching or leading teams.

How to prepare for a job interview at TechHeads

Showcase Your Technical Expertise

Be prepared to discuss your experience with Java, Spring Boot, and other relevant technologies in detail. Highlight specific projects where you've designed and built backend services, and be ready to explain your thought process and the challenges you faced.

Demonstrate Your Problem-Solving Skills

Expect to encounter technical questions or scenarios during the interview. Practice articulating how you approach complex problems, especially in the context of cybersecurity and scalable systems. Use examples from your past work to illustrate your problem-solving strategies.

Emphasise Collaboration and Leadership

Since this role involves mentoring junior developers and working closely with cross-functional teams, be sure to share your experiences in leading projects and fostering a collaborative environment. Discuss how you've supported team members and contributed to a culture of excellence.

Prepare for DevOps Discussions

Given the emphasis on DevOps practices, brush up on your knowledge of CI/CD pipelines, Kubernetes, and cloud infrastructure. Be ready to discuss how you've integrated these tools into your workflow and how they can enhance software development processes.

Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions
TechHeads
Location: London
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  • Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions

    London
    Full-Time
    85000 - 100000 £ / year (est.)
  • T

    TechHeads

    50-100
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