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Offer summary
(Summary generated by AI based on the full job description)
The project involves technological transformation of a digital bank serving millions of active users. The main stack includes microservices, Kubernetes, cloud, OAuth 2.0, OIDC, and C4/UML modeling. Responsibilities cover designing high-availability distributed system architecture, bridging platform and product teams, defining engineering standards, and collaborating on security and optimization. The offered rate is 180–190 PLN/h net + VAT.
Senior IT Solutions Architect – Mobile & Cloud Banking
Company: OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
from: 24 July 2026
to: 23 August 2026
180 - 190 złnet (+ VAT)/ hr.B2B contract (full-time)
Salary details
basic salary
Offer parameters
level:senior
working mode:remote
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
Kubernetes
C4
UML
Java
Kotlin
Git
Swift
Operating system
Windows
Linux
Our requirements
- Experience: 5+ years in IT solution architecture and complex system integrations.
- Domain Knowledge: Proven track record in designing architecture for mobile applications and high-availability, high-concurrency systems in the financial sector.
- Modern Stack & Practices: Practical experience with microservices architecture, Kubernetes (k8s) orchestration, containerization, and cloud CI/CD delivery pipelines.
- Platform Engineering: Solid grasp of domain-driven platform teams supporting product engineering teams.
- Security & Auth: Strong understanding of authentication/authorization protocols (OAuth 2.0, OIDC) and cryptography (digital signatures, PKI, encryption).
- Code & Modeling: Hands-on ability to model in C4/UML, read/analyze code in Java, Kotlin, or Swift, and work with Git.
- Education & Languages: Higher degree in Computer Science (or related) and fluency in reading technical documentation in English.
Your responsibilities
- Architect High-Scale Systems: Design complex, distributed software architecture and system integrations for high-volume mobile banking services.
- Bridge Platform & Product: Split your focus 50/50 between driving core Tech Platform architecture in the Foundation team and supporting dedicated domain product teams.
- Define Engineering Standards: Establish requirements for hardware, infrastructure, tech stack, service orchestration, and software development best practices.
- Integrate & Document: Model system integrations (C4/UML) and maintain complete, high-quality architectural documentation.
- Ensure Security & Performance: Partner with cybersecurity experts on access layers, OAuth 2.0/OIDC implementations, and cryptographic standards.
- Drive Data-Backed Decisions: Independently gather technical domain context across the organization to recommend and implement architectural optimizations.
About the project
Our client is Poland’s largest financial institution and a market leader in digital banking, delivering cutting-edge services to millions of active daily users.
Please note: Optiveum is acting as the recruitment partner for this role. You will sign a long-term B2B contract directly with a reputable IT outsourcing company, dedicating your expertise full-time to this Bank's technological transformation.
About the Role
We are seeking a Senior IT Solutions Architect to co-define the target architecture for Poland’s premier mobile banking ecosystem. Operating at the intersection of product and platform engineering (50/50 split), you will design microservices-based, distributed, and cloud-native solutions designed to handle high-concurrency traffic with near 100% availability.
This is how we organize our work
This is how we work
at the client's siteyou focus on a single project at a timeyou develop several projects simultaneouslyyou have influence on the productyou focus on product developmentyou focus on code maintenanceagilescrum
This is how we work on a project
- architect / technical leader support
- Continuous Deployment
- Continuous Integration
- team-level deployment
- documentation
- issue tracking tools
- testing environments
What we offer
- Salary: 180 – 190 PLN/h net + VAT (B2B contract, depending on experience).
- Work Model: Hybrid (minimum 2 days/month in the Warsaw office).
- Contract Duration: 6–12 months (with a high probability of long-term extension).
- Location: Warsaw, Poland.
- Impact & Scale: Direct influence on an application powering the daily financial transactions of millions of users using a modern tech stack.
Benefits
- remote work opportunities
- integration events
OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Optiveum is a recruitment and consulting company created based on our 20-plus years of experience in HR & IT services.
We work for Clients located in Poland and abroad providing our local and international Candidates with Project-based or Permanent job opportunities in a remote or office-based model.
This is how we work
Senior IT Solutions Architect – Mobile & Cloud Banking
180–190 zł / hr. (B2B)
I apply to:
OPTIVEUM SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Warszawa, Masovian
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