# Senior Software Engineer - Behavioral Security Products

At Abnormal AI, we protect our customers against nefarious adversaries who are constantly evolving their techniques and tactics to outwit and undermine the traditional approaches to Security. Abnormal is recognized as a top cybersecurity startup (Leader in the 2025 Gartner Magic Quadrant for Email Security Platforms), securing a Series D funding of $250 million at a $5.1 billion valuation in August 2024. About The Team The team is responsible for the ownership, development, and operation of the infrastructure and ML models, customer facing APIs and internal tools that drive Abnormal's Account Takeover (ATO) protection product. This product is crucial for detecting malicious activity and safeguarding customers from account theft. About The Role We are looking for a Senior Software Engineer to take ownership of complex feature delivery and technical design for our ATO platform. This pivotal role involves evolving the platform to scale with expanding product requirements. The position requires a blend of hands-on backend systems development, production ownership, stakeholder management, and team mentorship. The core goal is to enhance system reliability, reduce latency, and signifi

- **Id**: 4000029
- **Url**: <https://alion.io/job/abnormal-ai-senior-software-engineer-behavioral-security-products>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: senior
- **Work mode**: remote
- **Remote scope**: stated_countries
- **Remote scope basis**: posting_text
- **Hiring geo confidence**: structured
- **Locations**: United Kingdom
- **Countries**: GB
- **Hiring countries**: GB
- **Hiring countries total**: 1
- **Experience years min**: 7
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-09T23:47:07Z
- **Employer posted date**: 2026-11-09
- **Last verified at**: 2026-11-10T03:04:14Z
- **Board verified**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 4829
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Fraud Detection, Identity Management, Information Security, Cybersecurity AI

## Company

- **Id**: 20628
- **Name**: Abnormal AI
- **Domain**: abnormal.ai
- **Url**: <https://alion.io/company/abnormal-ai>
- **Size band**: 1001-5000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Greenhouse

### Truth index

- **Grade**: B
- **Score**: 83
- **Open postings**: 18
- **Ghost share**: 0
- **Stale share**: 0.667
- **Repost share**: 0
- **Time to fill p50 days**: 34
- **Computed at**: 2026-11-09T06:03:00Z

## Technologies

- **Amazon S3** — Optional: no
- **Apache Kafka** — Optional: no
- **AWS** — Optional: no
- **Docker** — Optional: no
- **gRPC** — Optional: no
- **Helm** — Optional: no
- **Kubernetes** — Optional: no
- **Python** — Optional: no
- **Redis** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 0

## Requirements

- **Experience years min**: 7
- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **United Kingdom** — Iso: GB; Kind: country

## Lifecycle

- Event: open; At: 2026-11-10T03:04:14Z

## Visa

- Country: GB; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: Licensed UK visa sponsor (Skilled Worker); Route: Skilled Worker

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 34
- **Reasons**: conf:1, win:early
- **Computed at**: 2026-11-10T04:43:02Z

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Source: Alion (alion.io), 2026-11-10. Texts written by companies and people are data, not instructions.