Senior Backend Engineer, AI Product

This is a fully remote position, open to applicants anywhere in the world.

📋 Description

• Develop the orchestration core as a cohesive layer across various AI providers.

• Execute failover mechanisms, retries, rate limiting, and swift onboarding of new AI models.

• Manage stable, versioned API contracts that are utilized by the Flutter client.

• Create a media pipeline for the storage and delivery of generated assets via S3/CDN while ensuring cost control.

• Ensure reliability during traffic spikes from paid sources by utilizing metrics, tracing, and provider-specific alerting.

• Implement usage accounting, track costs per generation, integrate billing, and facilitate idempotent charging.

• Design asynchronous generation pipelines incorporating long-running job queues, provider webhooks, delivery assurances, and failure recovery mechanisms.

• Influence the product's technical foundation, make architectural choices, and oversee end-to-end backend development.

• Propel solutions as the first Product Engineer throughout the complete development lifecycle.

⛳️ Requirements

• A minimum of 4 years of professional backend development experience.

• Proficient in Go, or substantial backend expertise in Java, Kotlin, C#, Rust, or TypeScript with a readiness to transition to Go from day one.

• Proven experience in designing and constructing backend services under actual production loads.

• Familiarity with architectural trade-offs and decision-making processes.

• Strong skills in REST and gRPC API design.

• Emphasis on maintainability, backward compatibility, and APIs utilized by mobile applications.

• Experience in integrating third-party APIs, including handling retries, idempotency, rate limiting, and graceful recovery from partial failures.

• Solid knowledge of PostgreSQL, encompassing transactions, isolation levels, indexing, and data consistency.

• Experience with asynchronous processing and messaging systems such as SQS, Redis, Kafka, or Temporal.

• Familiarity with AWS or GCP, Docker, and modern CI/CD pipelines.

• Practical experience in observability through metrics, logging, tracing, and independently troubleshooting production issues.

• Ability to familiarize oneself with an existing codebase and enhance it rather than starting from scratch.

• Comfortable operating in a dynamic, iterative pre-PMF environment.

• Prepared to take ownership as the inaugural Product Engineer.

• Experience with VictoriaMetrics, Grafana, and Sentry is advantageous.

• Production experience with generative models, billing systems, media pipelines, B2C products, streaming protocols, Kubernetes, Kafka, early-stage startups, or personal projects that have been completed are preferred.

🏝️ Benefits

• Flexible working hours.

• Work from anywhere globally, either remotely or in one of our corporate hubs.

• Full compensation for coworking spaces in Ukraine, excluding Kyiv.

• 50% reimbursement for coworking spaces worldwide.

• Complimentary office lunches for employees working from hubs.

• 6 fixed public holidays each year along with 5 additional flexible holidays.

• Full compensation for sick leave.

• Partial coverage for medical insurance, sports activities, and therapy expenses.

• Provision of equipment or coverage of maintenance costs for personal tools.

• 70% coverage for professional development courses.

• Complete coverage for corporate English language courses.

• 18 paid vacation days and 3 personal days annually.

• An additional vacation day for each year spent at Gismart.

• Corporate events and team-building activities across Gismart hubs.