Kotlin Tech Lead

Tenth Revolution Group; Polska; Remote; PLN 180,000 - 300,000; Full time

Job summary

Tenth Revolution Group is seeking an experienced Kotlin Tech Lead for a remote-first engagement with a digital banking partner. This hands-on leadership role combines software engineering, architecture, mentoring, and stakeholder engagement to deliver secure, scalable cloud-native solutions for financial institutions.

You will guide engineering teams, drive architectural decisions, remain hands-on in Kotlin, and champion best practices, testing, observability, and CI/CD while collaborating

Qualifications

• Strong Kotlin commercial experience.
• Experience as Tech Lead or similar leadership role.
• Experience building cloud-native applications and distributed systems.
• Knowledge of software architecture and design principles.
• Experience with CI/CD and DevOps practices.
• Excellent communication and stakeholder management.
• Experience within Banking, FinTech, or Financial Services.
• Exposure to Java and the Spring ecosystem.
• Experience working within regulated environments.

Responsibilities

• Lead and mentor software engineering teams.
• Drive architecture and technical design decisions.
• Remain hands-on with Kotlin development.
• Design and build scalable microservices and distributed systems.
• Work closely with clients and stakeholders to deliver successful outcomes.
• Champion engineering best practices, testing, observability, and CI/CD.
• Support system performance, scalability, resilience, and security initiatives.

Skills

Kotlin

Tech Lead

Cloud-native

Architecture

CI/CD

Communication

Banking/FinTech

Java

Regulated environments

Tools

Spring ecosystem

Java

CI/CD tooling

Job description

Kotlin Tech Lead | Remote | 12-Month B2B Contract | Digital Banking

We're supporting a specialist digital banking technology partner that helps financial institutions build, launch, and scale modern digital banking platforms.

Operating with a remote-first and engineering-led culture, they work closely with clients to deliver high-quality, scalable solutions while maintaining a strong focus on technical excellence, collaboration, and continuous improvement.

The Role

We're looking for an experienced Kotlin Tech Lead to provide technical leadership across complex digital banking projects.

This is a hands-on role combining software engineering, architecture, mentoring, and stakeholder engagement. You'll guide engineering teams, influence technical decisions, and help deliver secure, scalable cloud-native solutions used by financial institutions.

Responsibilities

• Lead and mentor software engineering teams
• Drive architecture and technical design decisions
• Remain hands-on with Kotlin development
• Design and build scalable microservices and distributed systems
• Work closely with clients and stakeholders to deliver successful outcomes
• Champion engineering best practices, testing, observability, and CI/CD
• Support system performance, scalability, resilience, and security initiatives

Requirements

• Strong commercial experience developing software with Kotlin
• Previous experience as a Tech Lead, Lead Engineer, or similar technical leadership role
• Experience building cloud-native applications and distributed systems
• Strong understanding of software architecture and design principles
• Experience with modern CI/CD practices and DevOps ways of working
• Excellent communication and stakeholder management skills
• Experience within Banking, FinTech, or Financial Services
• Exposure to Java and the Spring ecosystem
• Experience working within regulated environments

If you're passionate about Kotlin and enjoy combining hands-on engineering with technical leadership, we'd love to hear from you.