Matillion
Senior Application Security Engineer

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Are you ready to shape the future of data?
Matillion is the company behind Maia, the AI Data Automation platform.
In the AI economy, demand for data is exploding. Manual data engineering can’t keep up. Maia fixes that by combining 15 years of data expertise with agentic AI to eliminate the manual work that slows data teams down. Organisations like Cisco, DocuSign, and Slack are already using it to deliver real business impact, faster.
We started in Manchester and now we’re global - with teams across the UK, US and India.
We are driven, curious, energetic people who move fast, think big and hold ourselves to a high standard. We’re here to make a dent in the universe bigger than ourselves. And we’re looking for people who want to be part of it.
Role Purpose
Matillion is built around small development teams utilising a modern, cloud-based technology stack to deliver products. The AppSec Engineer will work in an engineering capacity to product and engineering teams to ensure security is baked into the product from the design phase creating a SecDevOps workflow.
What you will be doing
Design
- Establish and lead security champions programme across the development squads
- Build functional and nonfunctional requirements for the application in conjunction with the product team
- Input abuse case stories into the product backlog
- Evangelise security across the product team, ensuring security stories are prioritised against feature goals
- Assess SDLC security gap risks and propose remedies
Consult
- Instruct and guide developers on how to conduct Threat Modelling during application Design
- Act as the single point of contact for security concerns arising from the development team providing advice on how to solve technical software issues
- Lead the pentesting cadence around the core application set by conducting hacking exercises
- Provide application code reviews against known development frameworks such as OWASP ASVS
- Provide input into the design of functional and non-functional security controls such as customer authentication workflows
- Run Security Champion sessions to keep developers aware of security developments
Reasons to use Rodeo
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.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
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.
See breakdownIt searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
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.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Engineer
- Establish security into the CICD pipeline such as SAST/IAST/DAST
- Automate and build nifty security tools to test Matillion applications
- Integrate testing, build failures and outputs to the development team to ensure passage to production is secure
- Create security tests for code and assist developers in building security unit testing
Support
- Responsive support to the development teams
- Analysis of logs to identify issues and provide solutions
Innovation
- Research projects, including prototyping, to explore future opportunities
- Investigate new technologies
- Optimise the infrastructure deployment process through use of automation, in-house and open source solutions
Self-Development and Growth
- Develop new skills by working with other members of the team
- Work with the Team Lead to identify training goals
- Lead and partake in technical discussions within the team
- Actively identify and complete opportunities for self-training and external training
- Drive the team’s process of continual improvement
What we are looking for
Technical / Role Specific
Essential
- A passion and drive to succeed in Application Security
- Understanding of Software Development Life Cycle
Desirable
- Security professional at heart borne from a software engineering background
- Experience of working with the OWASP ASVS framework
- Experience in Agile delivery environments
- Greenfield experience setting up security technologies from scratch
- Outgoing and able to build relationships with key stakeholders
Personal Capabilities Required, e.g. skills, attitude, strengths
- Can do attitude, willing to take on a wide range of security issues
- Keeps up to date with security developments
- Keen to engage with the security community on a range of topics
- Fast learner


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£71,440 - £107,160 a year
At Matillion, we are committed to providing compensation in line with market standards based on the role, job family, job level and country. This role’s estimated annual salaried pay range for this position is £71,440 - £107,160. The final salary will be based on your relevant skills, experience, and qualifications demonstrated in the hiring process.
More about Matillion
We operate a flexible working culture that promotes work-life balance, with benefits including:
- Company Equity
- 30 days holiday + bank holiday
- 5 days paid volunteering leave
- Private Health Insurance
- Life Insurance
- Pension
- Access to mental health support
Your Safety
Matillion recruiters will only contact you from @matillion.com email addresses. We occasionally work with trusted recruiting partners; they will always tell you they are working on our behalf. We will never ask for money, fees, or bank details at any point in the hiring process. If something feels off, trust that instinct. Don't click any links. Go straight to matillion.com/careers to verify open roles or reach us at talent@matillion.com.
Want to know more?
Don't tick every box? Apply anyway. We hire for potential, not just experience. A member of our Talent Acquisition team will be in touch.
Cannot find anything suitable role right now? We still want to hear from you. Drop us a line at talent@matillion.com.
Find out more about life on #TeamGreen here.
Matillion is an equal opportunity employer. We celebrate diversity and we are committed to creating an inclusive environment for all of our team. Matillion prohibits discrimination and harassment of any type. Matillion does not discriminate on the basis of race, colour, religion, age, sex, national origin, disability status, genetics, sexual orientation, gender identity or expression, or any other characteristic protected by law.
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