---
title: "Senior Backend Engineer (Core Team) at Playson – All Job Board"
---

# Senior Backend Engineer (Core Team) at Playson

Written by

[admin](https://alljobboard.com/author/admin/)

in

- [Europe, Ukraine (Remote)](https://maps.google.com/maps?q=Europe%2C%20Ukraine%20%28Remote%29&zoom=14&size=512x512&maptype=roadmap&sensor=false)
- Posted 6 days ago

![Playson](https://alljobboard.com/wp-content/plugins/wp-job-manager/assets/images/company.png)

 **Playson**

**About the Role**

We’re looking for a **Senior Backend Developer** who thrives in a deeply hands-on environment and enjoys being close to the code on a daily basis. This role is heavily focused on building, optimising, and scaling backend services in a high-load system where performance and reliability are critical.

You’ll be working on complex, real-time challenges at the core of our platform – improving latency, ensuring high availability, and making systems more efficient at scale. This is not a coordination-heavy role; it’s for someone who enjoys writing production code, solving tough engineering problems, and seeing the direct impact of their work.

If you’re product-driven, take ownership, and prefer a “build first, improve fast” approach while working on systems where every millisecond matters – this role will feel like home.

**Key Responsibilities**

- Work as part of a cross-functional team owning a core product within the platform
- Design, build, and deliver new backend features end-to-end in a distributed environment
- Write high-quality, production-level code daily, contributing directly to a high-load, scalable system
- Take ownership of services handling financial transactions at scale, with a strong focus on reliability and accuracy
- Proactively suggest and implement improvements in architecture, processes, and development practices
- Participate in code and architectural reviews to maintain high engineering standards
- Solve complex business and technical challenges with pragmatic, efficient solutions
- Participating in **on-call rotations** within the squad to ensure the reliability and availability of our systems
- Play an active role in ongoing tech transformation initiatives across the platform
- Collaborate closely with engineers, product, and other stakeholders to deliver impactful solutions used by millions globally

**Requirements**

- Solid experience with Node.js/TypeScript is ideal, but we also welcome experts in other OOP languages such as Java, Python, C++, C#, or Go
- Strong understanding of asynchronous programming techniques
- Deep production experience with Kafka: confident reasoning about consumer-group rebalances and their impact on in-flight processing, offset-commit strategies under retries and duplicate delivery, and the limits of “exactly-once” semantics
- Experience designing idempotent, retry-safe handlers for at-least-once pipelines: transactional outbox, idempotency keys, and deduplication
- Experience building services with gRPC or similar RPC frameworks
- Strong knowledge of relational databases such as MySQL or PostgreSQL, plus production experience with at least one NoSQL technology at scale, such as DynamoDB, MongoDB, or Redis
- Hands-on experience running services on Kubernetes and AWS/GCP: deployment, autoscaling, resource limits, and production debugging
- Production operations experience: on-call ownership of a high-load system, including incident response, impact assessment, root-cause analysis, and post-incident improvements

**Nice to Have**

- Experience with ClickHouse or other columnar/analytical databases
- Experience with multi-region / failover architectures: data replication, regional isolation, and graceful degradation
- Practical use of AI coding agents such as Cursor or Claude Code as part of daily development: effective prompting, reviewing, and validating AI-generated code
- Understanding of application security and industry best practices
- Gambling domain experience

**What We Offer**

- Competitive Salary
- Quarterly Bonuses
- Unlimited Paid Time Off
- Unlimited Paid Sick Leave
- Remote & Flexible Working
- Private Medical Insurance
- Financial Support for Life Events
- Professional Development Budget
- International Exposure
- Regular Company Events

*\*Benefits may vary depending on location and contractual agreement*

**Recruitment process**

1\. HR interview (30-45mins)

2\. Interview with a Hiring Manager (45mins)

3\. Technical interview with live coding (90mins)

4\. Final Interview with C-level (60 mins)

*By submitting your application, you acknowledge that your personal data will be processed in accordance with our*  *Privacy Policy* *.*

**Source:** this listing was published by [Jobicy](https://jobicy.com/). [View the original posting and apply](https://jobicy.com/jobs/152752-senior-backend-engineer-core-team) — applications are handled there, not on this site.

To apply for this job please visit [jobicy.com](https://jobicy.com/jobs/152752-senior-backend-engineer-core-team).

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    "title": "Senior Backend Engineer (Core Team) at Playson",
    "description": "<p><strong>About the Role</strong></p>\n<p>We’re looking for a <strong>Senior Backend Developer</strong> who thrives in a deeply hands-on environment and enjoys being close to the code on a daily basis. This role is heavily focused on building, optimising, and scaling backend services in a high-load system where performance and reliability are critical.</p>\n<p>You’ll be working on complex, real-time challenges at the core of our platform &#8211; improving latency, ensuring high availability, and making systems more efficient at scale. This is not a coordination-heavy role; it’s for someone who enjoys writing production code, solving tough engineering problems, and seeing the direct impact of their work.</p>\n<p>If you’re product-driven, take ownership, and prefer a “build first, improve fast” approach while working on systems where every millisecond matters &#8211; this role will feel like home.</p>\n<p><strong>Key Responsibilities</strong></p>\n<ul>\n<li>\n<p>Work as part of a cross-functional team owning a core product within the platform</p>\n</li>\n<li>\n<p>Design, build, and deliver new backend features end-to-end in a distributed environment</p>\n</li>\n<li>\n<p>Write high-quality, production-level code daily, contributing directly to a high-load, scalable system</p>\n</li>\n<li>\n<p>Take ownership of services handling financial transactions at scale, with a strong focus on reliability and accuracy</p>\n</li>\n<li>\n<p>Proactively suggest and implement improvements in architecture, processes, and development practices</p>\n</li>\n<li>\n<p>Participate in code and architectural reviews to maintain high engineering standards</p>\n</li>\n<li>\n<p>Solve complex business and technical challenges with pragmatic, efficient solutions</p>\n</li>\n<li>\n<p>Participating in <strong>on-call rotations</strong> within the squad to ensure the reliability and availability of our systems</p>\n</li>\n<li>\n<p>Play an active role in ongoing tech transformation initiatives across the platform</p>\n</li>\n<li>\n<p>Collaborate closely with engineers, product, and other stakeholders to deliver impactful solutions used by millions globally</p>\n</li>\n</ul>\n<p><strong>Requirements</strong></p>\n<ul>\n<li>\n<p>Solid experience with Node.js/TypeScript is ideal, but we also welcome experts in other OOP languages such as Java, Python, C++, C#, or Go</p>\n</li>\n<li>\n<p>Strong understanding of asynchronous programming techniques</p>\n</li>\n<li>\n<p>Deep production experience with Kafka: confident reasoning about consumer-group rebalances and their impact on in-flight processing, offset-commit strategies under retries and duplicate delivery, and the limits of &#8220;exactly-once&#8221; semantics</p>\n</li>\n<li>\n<p>Experience designing idempotent, retry-safe handlers for at-least-once pipelines: transactional outbox, idempotency keys, and deduplication</p>\n</li>\n<li>\n<p>Experience building services with gRPC or similar RPC frameworks</p>\n</li>\n<li>\n<p>Strong knowledge of relational databases such as MySQL or PostgreSQL, plus production experience with at least one NoSQL technology at scale, such as DynamoDB, MongoDB, or Redis</p>\n</li>\n<li>\n<p>Hands-on experience running services on Kubernetes and AWS/GCP: deployment, autoscaling, resource limits, and production debugging</p>\n</li>\n<li>\n<p>Production operations experience: on-call ownership of a high-load system, including incident response, impact assessment, root-cause analysis, and post-incident improvements</p>\n</li>\n</ul>\n<p><strong>Nice to Have</strong></p>\n<ul>\n<li>\n<p>Experience with ClickHouse or other columnar/analytical databases</p>\n</li>\n<li>\n<p>Experience with multi-region / failover architectures: data replication, regional isolation, and graceful degradation</p>\n</li>\n<li>\n<p>Practical use of AI coding agents such as Cursor or Claude Code as part of daily development: effective prompting, reviewing, and validating AI-generated code</p>\n</li>\n<li>\n<p>Understanding of application security and industry best practices</p>\n</li>\n<li>\n<p>Gambling domain experience</p>\n</li>\n</ul>\n<p><strong>What We Offer</strong></p>\n<ul>\n<li>\n<p>Competitive Salary</p>\n</li>\n<li>\n<p>Quarterly Bonuses</p>\n</li>\n<li>\n<p>Unlimited Paid Time Off</p>\n</li>\n<li>\n<p>Unlimited Paid Sick Leave</p>\n</li>\n<li>\n<p>Remote &amp; Flexible Working</p>\n</li>\n<li>\n<p>Private Medical Insurance</p>\n</li>\n<li>\n<p>Financial Support for Life Events</p>\n</li>\n<li>\n<p>Professional Development Budget</p>\n</li>\n<li>\n<p>International Exposure</p>\n</li>\n<li>\n<p>Regular Company Events</p>\n</li>\n</ul>\n<p><em>*Benefits may vary depending on location and contractual agreement</em></p>\n<p><strong>Recruitment process</strong></p>\n<p>1. 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