B2Tech is seeking a Backend Team Lead to join our Payment Systems team, leading the development of scalable, reliable, and high-performance services on the .NET stack.

This is a hands-on leadership role combining technical ownership with people development. You’ll shape the architecture of our payment platform, lead complex integrations with payment providers, banks, and mobile money operators, and support a team of engineers in delivering resilient systems that perform reliably at scale.

YOUR IMPACT

Technical:

• Design and deliver scalable, robust, and high-performance backend solutions using .NET, PostgreSQL, and Entity Framework Core.

• Optimize PostgreSQL queries, indexes, and data models to maintain data integrity and performance as transaction volumes scale.

• Drive architectural decisions across our microservices and gRPC-based payment gateway, selecting the right patterns and technologies for each challenge.

• Own the technical quality of integrations with payment providers, banks, and mobile money operators, from initial onboarding through production.

• Build resilient integrations that handle real-world payment scenarios, including timeouts, retries, idempotency, reconciliation, and provider-specific behavior.

• Maintain high engineering standards across delivered solutions, with a strong focus on reliability, maintainability, and performance.

• Drive continuous technical improvement, evaluating and introducing new technologies where they deliver meaningful value.

Leadership:

• Lead a team of .NET developers responsible for payment processing, orchestration, and third-party provider integrations.

• Mentor engineers on software design, code quality, architectural patterns, and engineering best practices.

• Lead effective code reviews, providing clear, constructive feedback that raises engineering standards across the team.

• Create an environment of ownership, open communication, collaboration, and continuous improvement.

• Partner with Product, QA, and other stakeholders to define priorities, manage expectations, and deliver against agreed timelines.

OUR REQUIREMENTS

Technical:

• Excellent knowledge of the .NET technology stack, including C#/.NET and REST and gRPC APIs.

• Strong relational database expertise, ideally PostgreSQL, including schema design, indexing, and query optimization.

• Strong hands-on experience with Entity Framework Core and modern data-access patterns.

• Proven experience making architectural and implementation-level design decisions within distributed or microservices-based systems.

• Solid experience integrating external APIs and providers, including authentication, adapters, retries, idempotency, and failure handling.

• Strong understanding of clean code, software design patterns, SOLID principles, and maintainable software architecture.

• Experience with real-time or near-real-time event-driven systems using Kafka or comparable messaging technologies.

• Proven ability to diagnose and resolve performance issues within high-throughput, transactional systems.

• Strong analytical, troubleshooting, and problem-solving skills when working with complex production systems.

• Comfortable working within an Agile/Scrum engineering environment.

Leadership:

• Proven ability to lead, mentor, and develop software engineers while maintaining strong technical credibility.

• Excellent communication and stakeholder management skills, with the ability to collaborate effectively across technical and non-technical teams.

Nice-to-Have:

• Experience with AWS or another major cloud platform and cloud-native architectures.

• Working knowledge of Kubernetes and containerized application deployment.

• Familiarity with Terraform or comparable Infrastructure-as-Code technologies.

WHAT WE OFFER

• Annual Discretionary Performance Bonus 💷

• Annual Salary Review 💵

• 21 Days of Paid Leave 📢

• Hybrid Working Model 🏠

• Semi-Flexible Working Hours ⌚

• Provident Fund 💰

• Medical Insurance Coverage ❤️‍🩹

• Subsidized Sports Benefits App Subscription 🏋️

• €100 Monthly Lunch Allowance + €9 for Each In-Office Day 😋

• Weekly Happy Hour 🤠

• Exciting Career Paths 🎯

• Personalized Learning & Development Programs 📖

• Birthday Leave 😎

• Marriage Leave 💍

• A Variety of Employee Perks 🎫