About this role.
This Senior Backend Engineer role develops and optimizes promotional features for a gaming SaaS platform. The position emphasizes high-performance, scalable distributed systems, microservices, asynchronous programming, and production reliability. Core technologies include Node.js, TypeScript, gRPC, messaging systems, SQL and NoSQL databases, Kubernetes, and major cloud platforms. The engineer will lead technical decisions, conduct reviews, collaborate with distributed teams, and participate in an on-call rotation.
Role DNA
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Job Complexity
5/5Pace & Pressure
4/5Autonomy Level
5/5Communication Load
4/5Salary analysis
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Core skills
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Sample interview questions
I would define clear service boundaries, use an event-driven design with a durable broker such as Kafka, and make consumers idempotent to safely handle retries. I would partition workloads by a stable key, such as player or campaign ID, use transactional persistence where needed, and add observability for lag, error rates, latency, and business-event correctness.
I would avoid blocking the event loop, use asynchronous I/O carefully, enforce timeouts and cancellation, and apply bounded concurrency for downstream calls. For CPU-intensive work, I would use worker threads or separate services, while TypeScript contracts, runtime validation, and comprehensive tests help keep interfaces reliable.
I would begin with metrics and distributed traces to isolate whether latency originates in application logic, a database, a broker, or a dependent service. I would reproduce the bottleneck where possible, optimize the highest-impact path through indexing, query changes, caching, batching, or connection-pool tuning, then validate the change with load tests and production monitoring.
I use versioned API contracts, explicit timeouts, retry policies that avoid retry storms, correlation IDs, and clear error semantics. For asynchronous workflows, I design for at-least-once delivery through idempotency keys, dead-letter handling, schema compatibility, and operational dashboards for failed or delayed messages.
I would first assess customer impact and stabilize the service through rollback, traffic shifting, or feature-flag disablement. Next, I would use logs, metrics, traces, and recent-change history to identify the cause, communicate status clearly, and document corrective actions such as tests, alerts, runbooks, or architectural safeguards to prevent recurrence.
About the Role
Our promotional features team is seeking a Senior Backend Engineer. This role is focused on developing and optimising promotional features for our gaming platforms, where performance, scalability, and cutting-edge solutions are paramount.
If you’re a product-passionate person, your mind is keen to solve deep tech engineering problems, and you have a fast “PoC first” approach with a deep sense of ownership, we would love to hear from you.
Key Responsibilities
Develop and maintain robust backend systems for our promotional features.
Optimize existing systems for enhanced performance and scalability.
Lead technical decisions and contribute to our SaaS solutions.
Collaborate with distributed teams to innovate and implement new features.
Ensure code and architectural excellence through reviews.
Address complex technical challenges with innovative solutions.
Participating in on-call rotations within the squad to help ensure the reliability and availability of our systems.
Requirments
Strong proficiency in Node.js and TypeScript (our primary backend stack). We’re also open to strong backend engineers from other ecosystems (e.g., Go, Java, C#, C++) who are ready to ramp up quickly.
Strong understanding of asynchronous programming and concurrency patterns.
Experience building distributed systems and working with messaging and coordination tools (e.g., Kafka, RabbitMQ, NATS, distributed locks).
Experience with gRPC in production environments.
Solid knowledge of databases: relational (MySQL, PostgreSQL), columnar (ClickHouse), and NoSQL (DynamoDB, MongoDB).
Experience with cloud platforms (AWS/GCP/Azure) and Kubernetes.
Skilled in building and maintaining unit and end-to-end tests.
Proven track record of delivering production-ready solutions.
Experience working with large-scale microservices architectures.
Degree in Computer Science or a related field (or equivalent practical experience).
Nice to Have
Understanding of enterprise development patterns
Experienced with large-scale microservices architecture
Experience with cloud providers (AWS, GCP, etc.)
Active performance observation
Gambling domain experience
Understanding of application security and industry standards, its best practice
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
HR interview
Technical interview (with Live coding)
Final interview
Please take into account that sometimes the process may differ, your TA Partner will keep you updated.
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