Senior/Staff Product Engineer

About the Position

Binariks is looking for a Senior/Staff Product Engineer to take end-to-end ownership of a correctness-critical product - from back-end processing and data modeling through external integrations to the user-facing interface.

The product involves asynchronous and long-running workflows, multi-tenant data, third-party and AI/LLM integrations, and complex business rules where correctness and traceability are critical. This is a highly autonomous, client-facing role: the engineer will work directly with stakeholders to clarify requirements, challenge assumptions, prototype business flows, and drive technical decisions from ambiguity through production.

Responsibilities

• Design and maintain long-running, resumable, multi-stage workflows, including idempotency, retries, partial-failure recovery, and bounded concurrency.
• Own service/module boundaries and enforce architectural decisions through automated safeguards.
• Design secure multi-tenant data models, authorization, least-privilege access, delegated administration, and audit trails.
• Build robust integrations with unreliable or expensive third-party services, including AI/LLM providers, with caching, timeouts, cost controls, degraded modes, and quality evaluation.
• Troubleshoot issues end to end, following data from storage through backend services to the user interface.
• Maintain strong system operability through cross-service tracing, correlation IDs, metrics, telemetry, and source-level error reporting.
• Own safe schema evolution and forward-only database migrations.
• Document architecture decisions, trade-offs, operational procedures, and failure modes.
• Work directly with clients and stakeholders to uncover underlying requirements, challenge assumptions, prototype flows, and obtain agreement before implementation.
• Operate autonomously when requirements are incomplete: identify assumptions, make informed decisions, act, and communicate those decisions clearly.

Requirements

• Must skills:

  • ~8+ years of experience building production systems, including ownership of at least one product/system end to end.
  • Strong experience designing asynchronous and/or long-running workflows, including idempotency, retries, and safe recovery from partial failures.
  • Strong full-stack engineering capability across backend and frontend.
  • Systems decomposition experience: designing, splitting, or consolidating services/modules and understanding the trade-offs of architectural boundaries.
  • Multi-tenancy and authorization: tenant isolation, least privilege, delegated administration, and auditability.
  • Production-grade observability and operability: distributed/cross-service tracing, metrics, error reporting, and cost awareness.
  • Data modeling and safe schema evolution, including forward-only migrations.
  • Testing across layers, including validation of user-visible behavior rather than relying exclusively on unit/API-level testing.
  • Experience integrating unreliable third-party services using adapters, caching, timeouts, cost controls, and degraded-mode strategies.
  • Application security fundamentals, including trust boundaries, credential management/rotation, injection/SSRF risks, and protection of client-side secrets.
  • Strong verification discipline and ability to validate data against the actual source of truth.
  • Strong written technical communication: architecture decision records, trade-off documentation, and runbooks.
  • Product judgment and ability to identify when technically valid outputs could nevertheless mislead users.
  • Proven client-facing ownership: comfortable leading requirements conversations rather than only implementing predefined tickets.
  • Ability to uncover underlying business rules, identify contradictions, prototype business flows, and secure stakeholder agreement.
  • Strong critical thinking, stakeholder communication, autonomy, and ability to make progress with incomplete requirements.

• Strongly preferred:

  • Applied AI/LLM integration experience, particularly structured outputs, evaluation, and cost control.
  • Experience delivering on-premise or air-gapped solutions alongside hosted/cloud products.
  • Enterprise SSO and federated identity experience.
  • Experience across different deployment topologies.
  • Experience in regulated or other high-stakes domains.
  • Productive, accountable use of AI coding agents in software development.

• Nice to Have:

  • Experience working with AI/ML-enabled products without necessarily having an ML research or data-science background.
  • Exposure to multiple languages, frameworks, and cloud environments, demonstrating the ability to become production-ready in unfamiliar technologies quickly.
  • Experience working both as part of a product engineering team and as the sole engineer/owner of an independent workstream.

We Offer

• 18 days of paid annual leave
• 10 sick leaves
• Additional days off for special occasions
• Medical Care
• Health check-up
• Play Room
• IT Cluster membership
• Business Trip
• Tech Talks
• Training & Conferences
• Certification
• Accounting
• Corporate currency
• Work From Anywhere
• Sport
• Internal Activities & Events
• Maternity Leave Bonus
• National Holidays

About the Company

Binariks is a company that values innovation, quality, and client satisfaction. We are committed to delivering high-quality software solutions and providing a supportive and enriching work environment for our employees.