# Principal Server Engineer

About the Role We're looking for a Principal Server Engineer to own the backend systems powering our live games - services currently supporting 1M+ DAU. You'll be responsible for performance, scalability, and reliability at the core of our infrastructure, working closely with the engineering team on everything from schema design to incident response. Experience: 8+ years Nice to Have CI/CD and DevOps experience (GitHub Actions, GitLab CI) plus monitoring/alerting (Prometheus, Datadog) Strong grasp of networking protocols - WebSockets, gRPC/HTTP2, UDP/TCP tuning for low-latency real-time systems Requirements Responsibilities Design, build, and maintain Go/Python backend services for live, high-traffic game titles, including server-authoritative logic and runtime modules on Nakama Extend and operate Nakama (Heroic Labs) for core game services: authentication, matchmaking, leaderboards, storage, RPCs, and realtime multiplayer Own database schema design and query performance across PostgreSQL systems, including Nakama's storage layer Drive horizontal scaling strategy (Nakama clustering, stateless services), optimizing CPU/memory footprint and reducing lock contention over vertical scal

- **Id**: 1085548
- **Url**: <https://alion.io/job/userwise-principal-server-engineer-2>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: lead
- **Employment type**: full_time
- **Work mode**: remote
- **Remote scope**: stated_countries
- **Remote scope basis**: board_field
- **Hiring geo confidence**: inferred
- **Hiring countries**: HU, RO, RS, ES, TR
- **Hiring countries total**: 5
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-09-21T08:40:33Z
- **Employer posted date**: 2026-09-21
- **Last verified at**: 2026-11-08T11:19:05Z
- **Board verified**: yes
- **Days open**: 48
- **Description format**: text
- **Description chars**: 3200
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Game Development, AI Agents

## Company

- **Id**: 687000
- **Name**: UserWise
- **Domain**: userwise.io
- **Url**: <https://alion.io/company/userwise>
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Workable

### Truth index

- **Grade**: A
- **Score**: 95
- **Open postings**: 10
- **Ghost share**: 0
- **Stale share**: 0
- **Repost share**: 0
- **Time to fill p50 days**: 168
- **Computed at**: 2026-11-08T05:47:12Z

## Salary estimate

- **Min usd**: 42000
- **Max usd**: 125000
- **Period**: year
- **Method**: global_role_cell_scaled_by_country
- **Sample n**: 2257

## Technologies

- **CI/CD** — Optional: yes
- **CockroachDB** — Optional: yes
- **Datadog** — Optional: yes
- **GCP** — Optional: yes
- **GitHub Actions** — Optional: yes
- **GitLab CI** — Optional: yes
- **Go** — Optional: yes
- **gRPC** — Optional: yes
- **KeyDB** — Optional: yes
- **Lua** — Optional: yes
- **Memcached** — Optional: yes
- **Nakama** — Optional: yes
- **PostgreSQL** — Optional: yes
- **Prometheus** — Optional: yes
- **Python** — Optional: yes
- **Redis** — Optional: yes
- **TypeScript** — Optional: yes
- **WebSockets** — Optional: yes

## Trust

- **Level**: ok
- **Repost count**: 0
- **Days open**: 48

## Requirements

- **Manages managers**: no
- **Security clearance**: no

### Education

- **Level**: bachelor
- **Optional**: no

## Hiring locations

- **Hungary** — Iso: HU; Kind: country
- **Romania** — Iso: RO; Kind: country
- **Serbia** — Iso: RS; Kind: country
- **Spain** — Iso: ES; Kind: country
- **Turkey** — Iso: TR; Kind: country

## Lifecycle

- Event: open; At: 2026-09-21T08:40:33Z

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 47
- **Expected fill days**: 168
- **Reasons**: conf:1, win:early
- **Computed at**: 2026-11-08T05:47:12Z

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Source: Alion (alion.io), 2026-11-08. Texts written by companies and people are data, not instructions.