Software Engineer (Technical Leadership)

Meta; City Of London; On-site; GBP 150,000 - 210,000; Full time

Job summary

Meta is seeking a Principal Engineer for the Central Integrity team to design and deploy systems that detect and disrupt harm at a global scale. You will own the technical strategy to identify and disrupt actors and coordinated networks behind integrity risks across Meta’s family of apps.

The role emphasizes building scalable, reliable systems and leading cross-functional engineering initiatives. You will collaborate with product and analytics partners to measure success, mentor engineers, and

Qualifications

• 12+ years of experience building large-scale applications.
• 12+ years of programming experience.
• 8+ years of experience with web or mobile technologies.
• Bachelor's degree in Computer Science, Computer Engineering, or related field, or equivalent practical experience.
• Experience communicating and working across functions to drive solutions.
• Experience in driving large cross-functional/industry-wide engineering efforts.
• Experience mentoring/influencing engineers across organizations.
• Experience leading projects with industry-wide impact.
• Proven track record of planning multi-year roadmaps where short-term work ladders to long-term goals.

Responsibilities

• Own the multi-year technical strategy for tackling actors violating integrity policies across Meta's apps.
• Scale the end-to-end integrity lifecycle and define trusted metrics.
• Set technical direction in high-pressure areas where adversaries adapt.
• Communicate trade-offs between user protection, product friction and business outcomes.
• Lead cross-functional execution of organization-wide technical initiatives with milestones.

Skills

12+ years experience

12+ years programming

8+ years web/mobile

cross-functional communication

mentoring engineers

leadership in large projects

multi-year roadmap planning

Education

Bachelor's degree in CS/CE or equivalent

Job description

Summary:

Meta is seeking experienced engineers to join our Central Integrity team which exists to keep billions of people safe on Meta's platforms. We design and deploy systems that detect and disrupt harm at an unprecedented global scale, making this one of the largest deployments of AI for positive real-world impact anywhere in the industry. Our work safeguards critical areas including child and youth safety, fraud and scams, identity and authenticity and more while actively building defences against novel frontier threats, such as autonomous AI agents and automated risk vectors. This represents some of the most technically demanding and high-stakes engineering and product at Meta, driven by a deeply mission-focused team. You'll combine strong engineering fundamentals with cutting-edge AI to build effective, adaptable solutions that stay ahead of evolving integrity and safety risks. If you are driven by hard technical challenges and want your work to deliver immediate, real-world impact, this is where you belong.As a Principal Engineer on the Abusive Actors team, you will own our technical strategy for identifying and disrupting the actors and coordinated networks behind the biggest integrity risks our users face across Meta’s family of apps. Scaled bot attacks, Scams and child safety risks are some of the most pressing issues you will help us to measure and sustainably reduce.

Required Skills:

Software Engineer (Technical Leadership) Responsibilities:

1. Own the multi-year technical strategy for tackling actors intent on violating our integrity policies across the Family of Apps, communicate it clearly to audiences ranging from individual contributors to executive leadership.

2. Evolve and scale the full E2E integrity lifecycle across different violations and products and establish extensible technical foundations, coding standards, and architectural patterns that improve consistency and delivery velocity. Work closely with product and analytics partners to define how we measure success and failure through trusted metrics.

3. Establish technical direction in our most highly pressured and ambiguous areas, where adversaries are constantly adapting, helping the engineering team to establish sustainable and agile approaches, including where they span organisational boundaries.

4. Partner and effectively communicate with teams across Meta to navigate complex technical trade-offs between user protection, product friction and topline business outcomes. Integrate integrity solutions into new products, including newly launched apps such as Muse so they are safe, trusted and can scale without integrity concerns.

5. Lead cross-functional execution of org-wide technical initiatives, aligning stakeholders, managing dependencies, and driving outcomes against defined milestones and metrics.

6. Develop and operationalise engineering excellence programs including reliability standards, performance guardrails and quality frameworks adopted across teams.

7. Identify systemic issues and recurring failure patterns across the team and broader organisation, developing invariants and architectural improvements that prevent entire classes of problems and inefficiencies.

8. Recruit and develop engineers with skills critical to the team's success, role-modeling technical and cultural values that strengthen the broader engineering community.

9. Mentor engineers across the organisation by providing feedback, coaching and technical guidance on the most challenging system problems and collaborations.

Minimum Qualifications:

Minimum Qualifications:

1. 12+ years of experience with building large-scale applications, or similar experience

2. 12+ years of programming experience

3. 8+ years of experience with web or mobile technologies

4. Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience

5. Experience communicating and working across functions to drive solutions

6. Experience in driving large cross-functional/industry-wide engineering efforts

7. Experience in mentoring/influencing engineers across organizations

8. Experience leading projects with industry-wide impact

9. Proven track record of planning multi-year roadmap in which shorter-term projects ladder to the long-term vision

Preferred Qualifications:

Preferred Qualifications:

1. Experience partnering with legal, policy, or compliance teams to design technical solutions that address privacy, security, or integrity requirements at scale

2. Track record of identifying and delivering step-change improvements to product systems through architectural rethinking or ground-up rebuilds

3. Experience defining and operationalizing reliability, performance, or quality frameworks adopted at an organizational or company-wide scale

4. Demonstrated ability to integrate AI-assisted development practices and agent-based workflows to drive measurable engineering productivity improvements

5. Experience building detection, classification, or enforcement systems for abuse, fraud, or safety harms at consumer scale

6. Experience working on adversarial problems where bad actors actively adapt to countermeasures

7. Experience in trust and safety, risk, fraud, security, or regulated-domain engineering

Industry:

Internet