DRW on cord

DRW

Senior Offensive Security Engineer

External position
London, UK
Hiring internally for DRW?
Finance
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Posted
3 days ago
Checked
cord regularly checks that external positions are still open
2 days ago

Skills & Experience

Job roles: Security Engineer
Experience level: Senior
Core skills considered: Penetration Testing, Threat Detection, Security Testing, Cyber Security
Other skills considered: API Security, Cloud Security, Python

Logistics

Base salary: Undisclosed
Some companies on cord are unable to disclose salaries publicly due to internal company policies. Message the company for salary information.
Employment type: Permanent
Remote working: Hybrid
Visa sponsorship: Not available

Job Description

DRW is building out its offensive security capability, and we're looking for a Senior Offensive Security Engineer to lead the charge. In this role, you'll plan and execute red team engagements, penetration tests, and adversary simulations against our trading infrastructure, corporate environment, and cloud platforms, acting as a trusted adversary who helps us find and fix weaknesses before anyone else does.

You'll work closely with our security, infrastructure, and trading teams to translate what you find into real improvements, and you'll help shape the methodology, tooling, and roadmap for offensive security at DRW as the function matures. This is a hands-on, high-trust role for someone who thinks like an attacker, communicates like a partner, and cares about making the firm measurably harder to compromise.


What You'll Do

  • Plan and execute red team engagements and adversary simulations against trading systems, corporate IT, and cloud environments, modeling realistic attacker tactics, techniques, and procedures (TTPs) mapped to frameworks such as MITRE ATT&CK
  • Conduct penetration tests across networks, web and internal applications, APIs, and cloud infrastructure, and report findings with clear, actionable remediation guidance
  • Design and build custom tooling, scripts, and exploits to emulate adversary behavior, test control effectiveness, and validate detection coverage
  • Partner with the Security Engineering and SOC teams in purple-team exercises to close gaps between what attackers can do and what defenders can see
  • Run social engineering and phishing simulations to assess and improve organizational security awareness
  • Identify, validate, prioritize, and track vulnerabilities and control weaknesses through to remediation in collaboration with infrastructure, platform, and application owners
  • Present engagement results and risk narratives to both technical teams and senior leadership in a way that drives action
  • Stay current on the threat landscape, emerging TTPs, and offensive tooling, and bring that knowledge back into DRW's defenses
  • Assess the security of AI and LLM-integrated systems, including prompt injection, model manipulation, data poisoning, and abuse of agentic workflows, and work with teams building these systems to harden them
  • Leverage AI-assisted tooling to accelerate reconnaissance, vulnerability discovery, and exploit development, and evaluate new AI-powered offensive techniques as they emerge
  • Help define and mature DRW's offensive security methodology, standards, and tooling, and mentor other engineers on the security team

What We're Looking For

  • 5+ years of hands-on experience in offensive security, penetration testing, or red teaming, including full engagement lifecycle work: reconnaissance, initial access, privilege escalation, lateral movement, persistence, and exfiltration
  • Strong scripting or programming ability for building and adapting offensive tooling
  • Solid understanding of networking fundamentals, Windows, macOS, and Linux internals, identity providers, and cloud platforms
  • Practical experience with common offensive security tools (e.g., Cobalt Strike, Metasploit, BloodHound, Burp Suite, Nmap) and a track record of building your own when the situation calls for it
  • Working knowledge of the MITRE ATT&CK framework, adversary emulation, and detection evasion techniques, along with enough understanding of defensive controls and tooling to help defenders improve
  • A track record of clear, precise reporting and communication and you can translate technical findings into risk that both engineers and executives understand
  • Experience with smart contract auditing and blockchain security
  • Familiarity with AI/ML security risks, including adversarial attacks on models, prompt injection, and the offensive and defensive implications of LLM-powered tooling
  • A collaborative mindset: you see red teaming as a way to make the whole organization more secure, not just to find flaws
Senior Offensive Security Engineer at DRW
Position posted 3 days ago

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Starling Bank on cord

Starling Bank

Full Stack Engineer (ML Ops)

London, UK
FinTech · Banking · Finance
A better bank for everyone
Active
over 6 months ago
Responds to
0% of requests
Responds in
1h 55m
Requests
7 pending

Skills & Experience

Job roles: Full Stack
Experience level: Mid, Senior
Core skills considered: Java, React, Redux, AWS, JavaScript

Logistics

Base salary: £70K - £110K
Employment type: Permanent
Remote working: Hybrid (up to 2 remote days p/w)
Visa sponsorship: Not available

Job Description

Starling is the UK’s first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. All at the tap of a phone, all the time.

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way.

We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices.

Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. We don't like to mandate how much you visit the office and work from home, that's to be agreed upon between you and your manager.

Our Data Environment

Our Data teams are excited about the value of data within the business, powers our product decisions to improve things for our customers and enhance effective and agile decision making, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech.

We are looking for talented data professionals at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write and the contribution they make to Starling. People with a broad ability to apply themselves to a multitude of problems and challenges, who can work across teams do great things here at Starling, to continue changing banking for good.

Requirements

We have built our entire banking platform in house and mostly in Java. We are looking for people who want to work on building the tooling that is used by our engineers on a daily basis.

We are looking for people who are truly full stack, and are as comfortable polishing their javascript front end as they are debugging the innards of their java applications database interactions, or standing up infrastructure with terraform. We are looking for people who can:

  • Design REST apis.
  • Code backend services, ideally using Java, or another other server side compiled language.
  • Develop modern front ends, ideally using React and Redux.
  • Get their code into the cloud and support it there, ideally on AWS.
  • Believe in clean coding, simple solutions, automated testing and continuous deployment.
  • Like to take ownership of a feature from the original idea through to live.
  • Think (like us) that a small number of empowered developers is the right way to deliver software.

Company Benefits

  • 33 days holiday (including flexible bank holidays)
  • An extra day’s holiday for your birthday
  • 16 hours paid volunteering time a year
  • Part-time and/or flexible hours available for most roles
  • Salary sacrifice, company enhanced pension scheme
  • Life insurance at 4x your salary
  • Hybrid/remote working
  • Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton
  • Generous family-friendly policies
  • Varied social groups set up and run by our employees
  • Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks
  • Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing

Full details are available on our careers site

Interview Process

Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team:

  • Stage 1 - 30 mins with one of the team
  • Stage 2 - Take home challenge
  • Stage 3 - 90 mins technical interview with two team members
  • Stage 3 - 45 min final with an executive and a member of the people team
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