Lead Engineer AI/AppSec

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.

We combine the scale of a global bank with the drive of a tech innovator. Our Technology teams design and build digital services that keep millions of customers safe and connected. Within Cybersecurity Technology & Engineering (CTE), we deliver solutions that strengthen security across the organization and set best practices for thousands of engineers.

You’ll be part of a specialized team working on innovative proof-of-concepts, ensuring security is embedded across the software development lifecycle on a global scale.

Sounds like your kind of challenge?

What you'll be doing

As Technical Lead, you will be the primary technical reference point for CEE Engineering, responsible for turning technical strategy into high-quality solutions. Your key responsibilities include:

Leading the engineering of proof-of-concept and proof-of-value security solutions, building to standards that enable wider adoption.
Designing and developing security tooling and scanning services with a clear understanding of their operational context.
Driving code quality through rigorous reviews and actionable feedback.
Owning and enforcing testing strategies (unit, integration, regression) and embedding quality gates in the CI/CD pipeline.
Facilitating design discussions and producing clear architectural decision records (ADRs).
Acting as the main technical unblocker, diagnosing complex issues and removing delivery impediments.
Building and maintaining production-quality Python microservices on GCP and Kubernetes.
Contributing to the codebase as a hands-on engineer while mentoring and developing other team members.
Collaborating with global partner teams to align integrations and resolve technical dependencies.

Note: Detailed project information will be shared during the recruitment process.

What you get in return

Flexible cooperation model – choose the form that suits you best
(B2B, employment contract, etc.)
Hybrid work setup – remote days available depending on the client’s arrangements - 6 days a month from the office in Kraków
Collaborative team culture – work alongside experienced professionals eager to share knowledge
Continuous development – access to training platforms and growth opportunities
Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
High quality equipment – laptop and essential software provided

Who we're looking for

Proven experience leading the delivery of complex, multi-component software systems, with ownership of design and quality across a team.
✔ Strong background in cybersecurity engineering – building or maintaining security tooling, scanning services, or similar.
✔ Deep knowledge of Python (microservice design, async programming, FastAPI or similar frameworks).
✔ Hands-on experience with GCP, Kubernetes, Helm, and Docker.
✔ Strong CI/CD pipeline experience (Jenkins or equivalent).
✔ Expertise in secrets/configuration management (e.g., HashiCorp Vault).
✔ Solid skills in PostgreSQL and/or Redis, including schema design and performance tuning.
✔ Ability to lead technical design, document decisions, and explain solutions to technical/non-technical audiences.
✔ Comfortable working in Agile environments.

Nice to have:

Familiarity with secret scanning tools (e.g. TruffleHog), async task frameworks (Celery, Kafka), and observability tooling (Splunk, OpenTelemetry).
Frontend experience (Vue.js, React, TypeScript).
Cloud or engineering certifications (e.g. GCP Professional).

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.

Ready to take the next step?

Submit your application! We look forward to reviewing your profile 😊

Know someone who might be a great fit?
Feel free to share this opportunity using the referral link: Mindbox Referrals System