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Europe, UkraineOffice & Admin•1 hour ago

Senior Backend Engineer (Core Team)

Company: Playson

Job TypeFULL TIME
SalaryCompetitive Salary
LocationEurope, Ukraine
Posted1 hour ago

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Full Job Details & Description

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 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 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: 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.

Apply For This Job Vacancy

Click below to visit the official application portal for Playson.

APPLY NOW ON OFFICIAL SITE →
Vacancy Ref: #10465
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Frequently Asked Questions

How do I apply for this Senior Backend Engineer (Core Team) vacancy?▼

Click the "Apply Now On Official Site" button to be redirected directly to the official application portal for Playson. JobMelo connects you directly to verified employer listings with no candidate fees.

Where is this Senior Backend Engineer (Core Team) position located?▼

This vacancy is located in Europe, Ukraine, United Kingdom. Please ensure you can commute to this area or have accommodation arranged.

What is the pay rate for this Senior Backend Engineer (Core Team) role?▼

The listed compensation is Competitive Salary. The standard UK National Living Wage is £11.44 per hour for workers aged 21 and over.

Do I need UK Right to Work for this job at Playson?▼

Yes, candidates must have valid UK Right to Work (British/Irish citizenship, settled status, Graduate visa, or dependent visa) unless the employer explicitly offers Skilled Worker Visa sponsorship.

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