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 68000 - 85000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and develop 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: Elevate your career while tackling meaningful challenges in a forward-thinking team.
  • Qualifications: 7+ years in software engineering with strong Java and backend development skills required.
  • Other info: Onsite role in London, perfect for those seeking technical ownership and growth.

The predicted salary is between 68000 - 85000 £ per year.

Permanent • Onsite • London £85,000 - £100,000 DOE

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'll 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

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

TechHeads is an exceptional employer, offering a dynamic work environment in the heart of London where innovation thrives. With a strong emphasis on employee growth, you will have the opportunity to lead projects, mentor junior developers, and shape the future of cutting-edge cybersecurity solutions. Enjoy competitive benefits including equity and healthcare, while collaborating with a world-class team dedicated to engineering excellence and meaningful problem-solving.
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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 latest trends in cybersecurity and SaaS solutions. Being able to discuss current challenges and innovations in the field during your interview will demonstrate your passion and knowledge, making you a standout candidate.

Tip Number 2

Showcase your experience with Java and Spring Boot by preparing examples of past projects where you've successfully implemented these technologies. Be ready to discuss specific challenges you faced and how you overcame them, as this will highlight your problem-solving skills.

Tip Number 3

Network with professionals in the cybersecurity space, especially those who work with SaaS products. Engaging in relevant online communities or attending industry events can provide valuable insights and connections that may help you during the application process.

Tip Number 4

Prepare to discuss your leadership style and mentoring experiences. Since the role involves supporting junior developers, being able to articulate how you've fostered collaboration and technical excellence in previous teams will be crucial.

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 technologies mentioned in the job description. Emphasise your contributions to previous projects, especially those involving backend services and DevOps practices.

Craft a Compelling Cover Letter: Write a cover letter that showcases your passion for cybersecurity and your technical vision. Mention specific projects where you've demonstrated leadership and innovation, and explain how your skills align with the responsibilities of the role.

Highlight Relevant Experience: In your application, focus on your 7+ years of software engineering experience. Detail your familiarity with tools like Kafka, RabbitMQ, and PostgreSQL, and provide examples of how you've optimised system performance and reliability in past roles.

Showcase Soft Skills: Don't forget to mention your mentoring experience and ability to work collaboratively with cross-functional teams. Highlight instances where you've fostered a culture of technical excellence and continuous improvement within your team.

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 Leadership Skills

Since this role involves mentoring junior developers and leading best practices, share examples of how you've taken initiative in previous roles. Discuss any experiences where you've led a team or project, focusing on how you fostered collaboration and technical excellence.

Understand the Company’s Vision

Research the company's products and their approach to cybersecurity. Be ready to discuss how your skills align with their goals and how you can contribute to their mission of building secure and scalable systems.

Prepare for Problem-Solving Questions

Expect to face technical challenges during the interview. Practice coding problems and system design scenarios that are relevant to backend development. Be ready to articulate your problem-solving approach and the rationale behind your decisions.

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

    London
    Full-Time
    68000 - 85000 £ / year (est.)

    Application deadline: 2027-06-23

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    TechHeads

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