Corero Network Security
Java Software Engineer

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About Us
Corero Network Security is a leading provider of Distributed Denial of Service (DDoS) protection solutions. We are specialists in automatic detection and mitigation solutions, that include network visibility, analytics, and reporting tools. Corero's technology provides scalable protection capabilities against both external DDoS attackers and internal DDoS threats, in even the most complex edge and subscriber environments, ensuring internet service availability and uptime. Corero's key operational centers are in Marlborough, Massachusetts, USA, and Edinburgh, UK, with the Company's headquarters in London, UK. The Company is listed on the London Stock Exchange's AIM market under the ticker CNS. For more information, visit www.corero.com.
The Role
Corero is looking for a talented and motivated Java Software Engineer to join its team developing centralized management and policy administration solutions for its leading DDoS and application protection solutions. The successful candidate will develop new capabilities and features within our product portfolio.
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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
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Responsibilities:
- Work in a small team developing the software for Corero’s management solutions.
- Software development and support of complex and algorithmic Java software within a Linux environment.
- Development and use of software APIs between components in a Linux system.
- Collaborate closely with other team members, product management, and engineering management on requirements.
- Deliver strong contribution to Corero intellectual property and software assets.
- Work across the entire lifecycle including design, implementation, integration, and bug fix.
Required Qualifications:
- Bachelor’s Degree in Computer Science or similar.
- Good knowledge of data structures and algorithms.
- Good communication, problem solving, presentation, and design documentation skills.
Required Experience and Skills:


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Your very own career expert that helps elevate your application to the next level.
- Highly proficient in Java 21+
- Good object-oriented software design skills.
- Solid experience in Linux environments.
- Experience in Spring framework, particularly Spring Boot.
- Solid experience with Linux-based scripting using Python and shell.
- Relational database and Mongo database experience.
- Strong Spring JPA / Spring Security experience.
- Strong SQL / Relational Databases experience.
- Container technologies such as Docker.
- Understanding of unit test methodologies.
What We Offer
- Competitive compensation package
- Pension scheme
- Life insurance
- Medical insurance
- Enhanced parental leave
- 25 days off + bank holidays + birthday leave
Location:
The position is associated with our central Edinburgh office, Scotland, UK. For candidates local to that office, flexible working arrangements mean an expected average of 2 days working in the office per week, with remaining days working from home.
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