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Tech Lead (Backend): Billing & Fees

BVNK
Contract type
Ongoing
Work mode
Hybrid · Bulgaria · Spain · Poland
Experience
Senior · 7+ years

Job description

Tech Lead for the Billing & Fees subdomain within BVNK's Ledger domain, owning the technical direction and delivery of billing infrastructure. The role is hands-on technical leadership, turning complex financial and commercial requirements into reliable, scalable engineering solutions.

At a glance

Employment
Full-time
Work mode
Hybrid · Bulgaria · Spain · Poland
Pay
EUR 85,000 – 115,000 / year

What you'll do

  • Own the technical direction of Billing & Fees: define and drive the architecture, technical strategy and engineering roadmap for billing services
  • Lead the development of scalable billing infrastructure: architect and build services for fee policy configuration, fee calculation, invoice generation, billing adjustments and reconciliation
  • Drive end-to-end billing automation: design data pipelines and integrations connecting systems such as Snowflake, Salesforce, Ledger and internal financial services
  • Ensure financial accuracy and auditability: establish engineering patterns supporting financial correctness, including idempotency, traceability, reconciliation, exception handling and audit trails
  • Lead architectural design and technical decisions: drive technical design submissions, architecture reviews and service design applying domain-driven design, hexagonal architecture and event-driven patterns
  • Provide hands-on technical leadership: remain actively involved in designing, building and reviewing production code; mentor engineers and raise engineering standards
  • Collaborate across engineering and business domains: partner with Product, Finance, Commercial, Back Office, Ledger, Digital Assets and Fiat teams
  • Own reliability and operational excellence: establish standards for observability, monitoring, performance and incident response, including message processing failures, dead-letter queues and service recovery
  • Drive engineering quality and delivery: set expectations for testing, CI/CD, documentation and technical debt management

What we're looking for

  • 7+ years of backend software engineering experience, with strong hands-on expertise in Java/Kotlin and Spring Boot, including experience leading technical initiatives or providing technical leadership to other engineers
  • Proven experience designing and delivering complex, distributed, production-grade systems, with strong understanding of microservices, event-driven architectures (Kafka, SQS), relational databases (MySQL/PostgreSQL) and caching technologies such as Redis
  • Experience working on financially sensitive systems, such as billing, invoicing, payments, ledger, fee calculation or reconciliation platforms
  • Strong architectural expertise, including domain-driven design, hexagonal architecture, service decomposition, bounded contexts and asynchronous communication patterns
  • Demonstrated ability to own technical architecture and drive engineering decisions, balancing scalability, reliability, delivery timelines and business requirements
  • Strong API design experience, including building and evolving RESTful APIs, managing backwards compatibility, and creating reliable integration patterns
  • Solid understanding of financial data integrity, including transactional consistency, idempotency, error recovery and reconciliation in distributed environments
  • Experience mentoring and guiding engineers through technical design, code reviews, problem-solving and complex delivery challenges
  • Strong production ownership mindset, with experience operating business-critical systems, participating in on-call rotations, managing incidents and using observability tooling 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, with the ability to work effectively across Engineering, Product, Finance and Commercial teams in a distributed, remote-first environment
  • Comfortable being both a hands-on engineer and a technical leader

Your team

Billing & Fees subdomain, Ledger domain

Billing & Fees sits at the heart of how BVNK monetises its products and services; the team ensures every transaction is billed accurately, fees are applied correctly, and invoices can be generated, reconciled and audited with confidence.

Benefits

  • Fair and competitive salary at every stage of your growth
  • Flexible working hours, with hybrid working at its heart
  • A culture built on passionate, growth-minded people
  • A flexible approach to holiday
  • Opportunities to travel to our offices around the world
  • An open and creative environment where you can help us define the future of BVNK, its culture, and its opportunity sets

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About BVNK

Stablecoin-native infrastructure for global money movement

BVNK is building stablecoin-native infrastructure so businesses can move value instantly across borders and networks. With global licenses and T1 bank partnerships, it facilitates billions in transactions for enterprise clients. The team is spread across EMEA, North America, and APAC.

Mission

To accelerate global money movement

Key facts

  • 2021
  • Financial services / stablecoin infrastructure
  • Founded in 2021
  • Secured strategic investment from Visa in 2025
  • $50 million Series B with Haun Ventures, Coinbase Ventures, Scribble Ventures, DRW Venture Capital, Avenir, and Tiger Global
  • Newsweek's Top 100 Global Most Loved Workplaces three years running (most recently in 2025)
  • Recognised by LinkedIn as one of the Top 20 Startups in the UK in 2024
  • Offers a Hybrid/Remote working policy

Partners & customers

WorldpayDeelLianLian GlobalRapydVisaHaun VenturesCoinbase VenturesScribble VenturesDRW Venture CapitalAvenirTiger Global