# Senior Backend Cloud Engineer

What we do: Halcyon is the industry’s first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware. Who we are: Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers. As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you’re interested in and we'll work a plan to meet your needs. The Role At Halcyon, we’re building a world-class anti-ransomware platform grounded in innovation and resilience. As part of that vision, we’re looking for a Senior Backend Engineer to join our cloud team. You’ll lead the development and evolution of our data platform and API services, working within a modern tech stack that blends Scala and Rust. You’ll join a team focused on building

- **Id**: 3910049
- **Url**: <https://alion.io/job/halcyon-senior-backend-cloud-engineer>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: senior
- **Work mode**: remote
- **Remote scope**: stated_countries
- **Remote scope basis**: board_field
- **Hiring geo confidence**: structured
- **Hiring countries**: US
- **Hiring countries total**: 1
- **Experience years min**: 5
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-07T02:09:24Z
- **Employer posted date**: 2026-11-07
- **Last verified at**: 2026-11-07T14:21:33Z
- **Board verified**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 5259
- **Description truncated**: no
- **Benefits**: 401k plan, Equity, Parental leave
- **Relocation offered**: no
- **Industries**: Endpoint Security, Information Security

## Company

- **Id**: 24258
- **Name**: Halcyon
- **Domain**: halcyon.ai
- **Url**: <https://alion.io/company/halcyon-ai>
- **Size band**: 51-200
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Greenhouse

## Technologies

- **Apache Kafka** — Optional: no
- **AWS** — Optional: no
- **DynamoDB** — Optional: no
- **Kubernetes** — Optional: no
- **Machine Learning** — Optional: no
- **OpenSearch** — Optional: no
- **Platform Engineering** — Optional: no
- **PostgreSQL** — Optional: no
- **Python** — Optional: no
- **Rust** — Optional: no
- **Scala** — Optional: no
- **Amazon CloudWatch** — Optional: yes
- **ClickHouse** — Optional: yes
- **Databricks** — Optional: yes
- **GitHub Actions** — Optional: yes
- **Grafana** — Optional: yes
- **Helm** — Optional: yes
- **MLFlow** — Optional: yes
- **Prometheus** — Optional: yes
- **Terraform** — Optional: yes
- **YARA** — Optional: yes
- **YARA** — Optional: yes

## Trust

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

## Requirements

- **Experience years min**: 5
- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-11-07T06:21:20Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 1; Filings 12m: 1

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 57
- **Reasons**: conf:0, win:early
- **Computed at**: 2026-11-07T14:38:57Z

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Source: Alion (alion.io), 2026-11-07. Texts written by companies and people are data, not instructions.