Tech Lead, Backend Developer, Software Architect

Delasport — Implementing Technological Solutions Here and Now.

Delasport is an iGaming software company providing Sports Betting & Online Casino software and turnkey B2B solutions. Since 2010, we have made a significant impact on the industry, earning awards and expanding our global presence. With offices in Bulgaria, Ukraine, and Malta, our team of more than 500 experts continues to drive innovation and strive for excellence. We are looking for top talent to join our R&D center in Kyiv.

We take products from zero to hero, and scale them until they’re strong enough to be handed over to core teams. No legacy constraints. No endless support cycles. Just greenfield builds, modern tech, and real ownership from day one.

We move fast, think lean, and execute with focus, one product at a time, full commitment, full impact. Every sprint matters, every decision ships value. This is not a support team. It’s a build-from-scratch engine for products that matter, because every hero needs a superhero.

• Technical Quality Ownership - Set and enforce technical standards for code quality, testing practices, deployment procedures, and observability across all teams. Ensure deliverables consistently meet company and industry standards.
• Security & Compliance - Champion security best practices in application design and delivery. Drive secure coding standards, dependency management, and vulnerability remediation across the development lifecycle.
• Technology Decisions - Drive and consult on technology choices in collaboration with the Architect and engineering teams. Evaluate new tools, frameworks, and patterns with a clear focus on efficiency, maintainability, and long‑term sustainability.
• Architecture & Design Guidance - Review and guide system designs, API contracts, data models, and integration patterns. Ensure business requirements are implemented following sound architectural principles and established standards.
• Hands‑On Engineering - Stay deeply hands‑on with production code. Lead by example in modern Java (21/25), Spring Boot 3/4, PHP, Laravel, NodeJS, Kafka Streams, and cloud‑native microservices. Conduct in‑depth code reviews and contribute to critical path development.
• Observability & Operational Excellence - Define and drive observability standards (metrics, logging, tracing, alerting) to ensure production systems are transparent, diagnosable, and reliable.
• Technology Adoption - Drive the adoption of new technologies and practices across teams. Build proof‑of‑concepts, define migration paths, and ensure smooth rollouts with minimal disruption.
• Cross‑Team Collaboration - Act as the technical mediator between Java teams, Team Leads, the Architect, and business stakeholders. Translate business requirements into sound technical guidance and ensure alignment across all parties.
• Knowledge Sharing - Foster a culture of technical excellence through design reviews, tech talks, documentation, and hands‑on mentoring of senior engineers.

Employees may be required to participate in an on‑call rotation, ensuring availability outside regular working hours to respond to urgent issues as needed per the on‑call policy.

• Experience
  : 7+ years of hands‑on backend development with strong expertise, including 2+ years in a technical leadership capacity (Tech Lead, Principal Engineer, or equivalent).
• Technical Expertise
  • Deep knowledge of Java (21+), PHP or NodeJS concurrency, JVM internals, and performance characteristics
  • Strong experience with building production‑grade microservices
  • Strong expertise with Kafka and Kafka Streams – event‑driven architectures, stream processing, schema evolution, and exactly‑once semantics
  • Solid understanding of REST API design principles and synchronous integration patterns
  • Hands‑on experience with Kubernetes, Git Ops (ArgoCD, Kustomize), and container orchestration
  • Experience defining and implementing observability strategies (metrics, distributed tracing, structured logging, alerting)
  • Strong understanding of application security practices, secure coding, and dependency management
  • Solid database knowledge: relational and document databases, data modeling, and…