QAtronic

About the company
We have spent five years building the relationships, regulatory strategy, and proprietary technology to weave the Global South into a connected financial ecosystem. Our core stack which forms part of our broader ecosystem is a fully integrated digital banking system with current accounts, savings, multi-currency accounts, payments, onboarding, lending origination and servicing, document management, regulatory reporting, and full general ledger and accounting — built natively rather than layered on legacy technology.

Role Overview
We are looking for a senior-level backend developer who can design and build the backend of our cloud-native banking platform. The ideal candidate is a strong communicator, can work autonomously on complex systems, and brings deep expertise in modern JVM-based software development for distributed microservices in Java and Scala, CI/CD, and Kubernetes. Operational security and regulatory best-practice should always be front of mind.

Key Responsibilities
● Design & Implement high-throughput, fault-tolerant micro-services in Java / Scala (Spring Boot, Akka, Play).
● Data Layer Mastery – Build efficient data access layers for MongoDB, Oracle, and PostgreSQL; tune queries, design indexes, and manage migrations.
● Distributed Systems – Apply patterns such as event-driven architecture, CQRS, eventual consistency, and service discovery.
● API & Integration – Define clean REST contracts, handle versioning, and integrate with external fintech APIs (payment gateways, banking networks).
● CI/CD Ownership – Author and maintain GitLab pipelines (build, test, static analysis, containerization) to enable fast, reliable releases.
● Cloud-Native Practices – Deploy services to AWS (EKS, ECS, Lambda) or similar platforms; leverage managed databases, secrets, and monitoring.
● Performance & Reliability – Conduct load testing, profiling, and capacity planning; implement retries, circuit-breakers, and graceful degradation.

Required Technical Skills
Java/Scala/Groovy, Spring Boot, Gitlab (pipelines, git), MongoDB (schema design, aggregation), Oracle (PL/SQL, tuning), PostgreSQL, Kubernetes, basic AWS knowledge.

Desired Experience & Attributes
● 10+ years of professional backend development in Java/Scala.
● Proven track record building large-scale, low-latency services that handle high transaction volumes.
● Experience in fintech or regulated domains is a plus.
● Strong problem-solving mindset; can independently own feature delivery from design through production.
● Excellent communicator in English – able to explain technical concepts to non-technical audiences and collaborate across product, security, and operations teams.
● Focus on code quality, test-driven development, and continuous improvement.
● Availability as soon as possible

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

Candidates based in Poland are especially welcome. Proficiency in Polish will be a strong advantage. 
 

Scope of Work (Snowflake Data Engineer / Architect)

- Migration of data processing pipelines and datasets between two Snowflake instances. 

- Reverse engineering of selected existing solutions in order to assess the required level of modification (including implementation of selected adjustments). 

- Migration of several Streamlit applications (native Streamlit in Snowflake) alongside the data and pipelines. 

- For selected datasets and pipelines, implementation of new components (code, data structures, and Snowflake cross-account data sharing mechanisms). 

- Re-creation of an existing data processing framework currently used by another business unit on the new Snowflake account. 

- Ensuring that all data structures required for critical applications and Power BI reports are available in the new Snowflake account, including the pipelines/processes feeding those structures. 

-The role will require close collaboration with a Power BI specialist responsible for analyzing and prioritizing semantic models and Power BI reports currently consuming data from the existing Snowflake account.

Primary Skills: 

- SQL

 -Snowflake (preferred) or other cloud data warehouse solutions 

- Data layering 

- Stored procedure / Cursor / Dynamic SQL / Window functions / Recursive Query etc C# development 

- ETL - Azure Data Factory (or other ETL Tools)

- Data pipeline design 

- REST API / Oauth 

- Semi-structured Data 

- File Processing: JSON / XLSX / CSV / PARQUET

We offer:

• Attractive financial package

• Paid vacation, holidays and sick leaves

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

• Flexible working hours