Tech Lead (Backend): Billing & Fees (Fintech)

Location: Europe; hybrid/remote working policy available.

Salary: €85,000–€95,000 EUR; Bulgaria: €85,000–€95,000 EUR; Spain: €95,000–€105,000 EUR; Poland: PLN 350,000–420,000.

Company

hirify.global builds stablecoin-native financial infrastructure for global payments, billing, and money movement.

What you will do

• Own the technical direction, architecture, strategy, and roadmap for the Billing & Fees subdomain within the Ledger domain.
• Design and build services for fee configuration, fee calculation, invoice generation, billing adjustments, reconciliation, and automated financial workflows.
• Develop data pipelines and integrations across Snowflake, Salesforce, Ledger, and internal financial services.
• Ensure financial accuracy, idempotency, traceability, exception handling, reconciliation, and auditability.
• Lead architecture reviews, service design, technical decisions, and hands-on production development using domain-driven, hexagonal, and event-driven patterns.
• Guide engineers, improve engineering quality, and own observability, incident response, CI/CD, testing, documentation, and operational resilience.

Requirements

• 7+ years of backend software engineering experience, including strong hands-on Java or Kotlin and Spring Boot expertise, plus technical leadership experience.
• Experience designing and delivering complex, distributed, production-grade systems using microservices, event-driven architectures such as Kafka or SQS, relational databases such as MySQL or PostgreSQL, and Redis.
• Experience with financially sensitive systems including billing, invoicing, payments, ledgers, fee calculation, or reconciliation, where accuracy, consistency, auditability, and reliability are critical.
• Strong architecture expertise covering domain-driven design, hexagonal architecture, service decomposition, bounded contexts, and asynchronous communication.
• Ability to own technical architecture and engineering decisions while balancing scalability, reliability, delivery timelines, and business requirements.
• Strong RESTful API design experience, including backward compatibility and reliable internal and external integrations.
• Understanding of transactional consistency, idempotency, error recovery, and reconciliation in distributed environments.
• Experience mentoring engineers through technical design, code reviews, problem-solving, and complex delivery challenges.
• Experience operating business-critical systems, participating in on-call rotations, managing incidents, and using observability tools such as Grafana, Prometheus, and Micrometer.
• Familiarity with CI/CD pipelines, infrastructure-as-code, automated testing, and modern software delivery practices.
• Strong communication and stakeholder management skills across Engineering, Product, Finance, and Commercial teams in a distributed, remote-first environment.
• Comfort working as both a hands-on engineer and technical leader.

Culture & Benefits

• Flexible working hours with hybrid working at the core of the policy.
• Flexible holiday arrangements and opportunities to travel to offices worldwide.
• Growth-minded, open, and creative working environment.
• Salary packages vary by candidate experience and relevant certifications.