Middle Data Engineer Job at N-iX

Middle Data Engineer

At LeverX, we have had the privilege of delivering over 950 projects. With 20+ y...

Location

Salary:

Not provided

LeverX

Expiration Date

Until further notice

Requirements

3–5 years of experience in data engineering
Strong SQL and solid Python for data processing
Hands-on experience with at least one cloud and a modern warehouse/lakehouse: Snowflake, Redshift, Databricks, or Apache Spark/Iceberg/Delta
Experience delivering on Data Warehouse or Lakehouse projects: star/snowflake modeling, ELT/ETL concepts
Familiarity with orchestration (Airflow, Prefect, or similar) and containerization fundamentals (Docker)
Understanding of data modeling, performance tuning, cost-aware architecture, and security/RBAC
English B1+

Job Responsibility

Design, build, and maintain batch/streaming pipelines (ELT/ETL) from diverse sources into DWH/Lakehouse
Model data for analytics (star/snowflake, slowly changing dimensions, semantic/metrics layers)
Write production-grade SQL and Python
optimize queries, file layouts, and partitioning
Implement orchestration, monitoring, testing, and CI/CD for data workflows
Ensure data quality (validation, reconciliation, observability) and document lineage
Collaborate with BI/analytics to deliver trusted, performant datasets and dashboards

What we offer

Projects in different domains: Healthcare, manufacturing, e-commerce, fintech, etc.
Projects for every taste: Startup products, enterprise solutions, research & development projects, and projects at the crossroads of SAP and the latest web technologies
Global clients based in Europe and the US, including Fortune 500 companies
Employment security: We hire for our team, not just a specific project. If your project ends, we will find you a new one
Healthy work atmosphere: On average, our employees stay in the company for 4+ years
Market-based compensation and regular performance reviews
Internal expert communities and courses
Perks to support your growth and well-being

Senior Software Engineer - Trade Processing Middle Office Platform

As an experienced Staff / Senior Software Engineer, you’ll shape our flagship Mi...

Location

United States , New York

Salary:

170000.00 - 240000.00 USD / Year

Clear Street

Expiration Date

Until further notice

Requirements

Bachelor's Degree in Computer Science or Engineering
10+ years of strong proficiency in Java / Spring Boot, Spring, RDBMS, Service Oriented Architecture (SOA), microservice based server side application development
Strong experience with distributed systems, event-driven architecture, and tools like Kafka
Practical knowledge of relational databases (e.g., Postgres) and schema design
You have contributed to systems that deliver solutions to complex business problems that handle massive amounts of data
You prioritize end user experience and it shows in your API designs, functionality, and performance
You have a strong command over design patterns, data structures, and algorithms
You have strong problem-solving skills with a keen eye for performance optimization
You can clearly explain the nuances of system design and paradigms to engineers and stakeholders
Strong understanding of multi-threading, concurrency, and performance tuning

Job Responsibility

Architect and build highly available, horizontally scalable mission critical applications in a modern technology stack
Design, build, and optimize core components responsible for processing a high volume of trade data in a low latency environment
Solve complex performance and scalability challenges, ensuring our systems handle large-scale financial data efficiently
Collaborate with product managers, and other engineers to translate financial methodologies into robust software solutions
Lead by example in system design discussions, architectural trade-offs, and best practices
Mentor team members, contributing to a strong culture of engineering excellence

What we offer

Competitive compensation, benefits, and perks
Company equity
401k matching
Gender neutral parental leave
Full medical, dental and vision insurance
Lunch stipends
Fully stocked kitchens
Happy hours

Fulltime

Middle Palantir Foundry Developer

At LeverX, we have had the privilege of delivering 1,500+ projects. With 20+ yea...

Location

Uzbekistan, Georgia

Salary:

Not provided

LeverX

Expiration Date

Until further notice

Requirements

3+ years in data/analytics engineering or software development
Hands-on experience with Palantir Foundry (pipelines and/or applications)
Proficiency in Python and SQL
Confidence with Git
Ability to translate business requirements into working solutions
English B1+

Job Responsibility

Build and maintain data pipelines and transformations in Foundry
Implement application logic, views, and access controls
Validate data and ensure basic documentation and support
Work with stakeholders to clarify requirements and iterate on features

What we offer

Impactful use-case delivery on real data
Possibility to progress into a Team Lead role: mentoring, design facilitation, and coordination
Projects in different domains: Healthcare, manufacturing, e-commerce, fintech, etc.
Projects for every taste: Startup products, enterprise solutions, research & development projects, and projects at the crossroads of SAP and the latest web technologies
Global clients based in Europe and the US, including Fortune 500 companies
Employment security: We hire for our team, not just for a specific project. If your project ends, we will find you a new one
Healthy work atmosphere: On average, our employees stay in the company for 4+ years

Middle QA Big Data

The objective of this project is to enhance the QA processes through the impleme...

Location

Ukraine

Salary:

Not provided

N-iX

Expiration Date

Until further notice

Requirements

3+ years of QA experience with a strong focus on Big Data testing, particularly with hands-on experience in Data Lake environments on any cloud platform (preferably Azure)
Experience with Azure
Hands-on experience in Azure Data Factory, Azure Synapse Analytics, or similar services
Proficiency in SQL, capable of writing and optimizing both simple and complex queries for data validation and testing purposes
Experienced in PySpark, with experience in data manipulation and transformation, and a demonstrated ability to write and execute test scripts for data processing and validation (ability to understand the code and convert the logic to SQL)
Hands-on experience with Functional & System Integration Testing in big data environments, ensuring seamless data flow and accuracy across multiple systems
Knowledge and ability to design and execute test cases in a behavior-driven development environment
Fluency in Agile methodologies, with active participation in Scrum ceremonies and a strong understanding of Agile principles
Familiarity with tools like Jira, including experience with X-Ray for defect management and test case management
Proven experience working on high-traffic and large-scale software products, ensuring data quality, reliability, and performance under demanding conditions

Job Responsibility

Design and execute data validation tests to ensure completeness in Azure Data Lake Storage (ADLS), Azure Synapse, and Databricks
Verify data ingestion, transformation, and loading (ETL/ELT) processes in Azure Data Factory (ADF)
Validate data schema, constraints, and format consistency across different storage layers
Conduct performance testing on data pipelines
Optimize query performance by working with data engineers
Identify, log, and track defects in JIRA
Collaborate with Data Engineers and Business Analysts to resolve data inconsistencies
Generate detailed test reports, dashboards, and documentation for stakeholders

What we offer

Flexible working format - remote, office-based or flexible
A competitive salary and good compensation package
Personalized career growth
Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
Active tech communities with regular knowledge sharing
Education reimbursement
Memorable anniversary presents
Corporate events and team buildings
Other location-specific benefits

Rust Engineer - Platform

As a Platform Backend Engineer (Rust) at Keyrock, you will drive the development...

Location

Salary:

Not provided

Keyrock

Expiration Date

Until further notice

Requirements

Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience
Proven experience in building and maintaining data-intensive, large-scale, high-performance trading data platforms
Strong expertise in Rust (or C++), Python, and TypeScript for system development and automation in the financial services industry
Good understanding of data engineering principles, including data modeling, ETL pipelines, and stream processing
Experience with financial services data workflows, including trading, middle office, and back office operations
Extensive experience in cloud-native architectures, with proficiency in AWS
Proficient in GitOps tools and methodologies for infrastructure automation and deployment
Strong background in DevSecFinOps, ensuring compliance, security, and cost efficiency across the development lifecycle
Hands-on experience with CI/CD pipelines, infrastructure as code (IaC), and monitoring tools

Job Responsibility

Rust Development: Design, build, and maintain high-performance backend services and APIs using Rust, ensuring low latency and high availability for critical trading data platforms
Strong systems engineering fundamentals: Concurrency, memory management, networking, serialization, and observability Solid understanding of performance tuning and profiling in real-world systems
System Integration: Create seamless integrations between live trading operations (exchanges/DeFi) and backoffice systems, automating workflows to improve operational efficiency
Cloud-Native Deployment: Deploy and manage services in a cloud-native environment, leveraging AWS, Kubernetes, and Terraform to scale infrastructure infrastructure-as-code
DevOps & Observability: Maintain GitOps-driven workflows, ensuring robust CI/CD pipelines and implementing deep system observability (logging, metrics, tracing) for rapid incident response
Database Optimization: Optimize data storage and retrieval strategies (SQL/NoSQL), balancing query performance, cost efficiency, and data integrity in a high-volume financial environment
Security & Compliance: Engineer solutions with a "Security-First" mindset, ensuring strict adherence to compliance standards and secure handling of sensitive financial data
Cross-Functional Collaboration: Partner with Product Managers, Risk teams, and other engineers to translate complex business requirements into reliable technical specifications and features
Technical Excellence: Actively participate in code reviews, contribute to architectural discussions, and mentor fellow engineers to foster a culture of high code quality and innovation
Continuous Improvement: Stay updated on emerging trends in the Rust ecosystem, cloud infrastructure, and blockchain technologies to continuously refine the platform’s capabilities

What we offer

A competitive salary package
Autonomy in your time management thanks to flexible working hours and the opportunity to work remotely
The freedom to create your own entrepreneurial experience by being part of a team of people in search of excellence

Fulltime

New

Middle Data Warehouse Engineer

We are seeking a motivated Middle Data Warehouse Engineer to join our team. In t...

Location

Salary:

Not provided

N-iX

Expiration Date

Until further notice

Requirements

At least 4 years of experience in this or a similar role
Intermediate proficiency with Oracle and PL/SQL
Experience with ETL processes and data pipeline development
Familiarity with shell scripting (Unix) and basic command-line debugging
Working knowledge of AWS CLI
Basic knowledge of Java
A solid understanding of data warehousing concepts
Strong problem-solving skills and the ability to learn from technical documentation and training materials

Job Responsibility

Design, develop, and maintain ETL (Extract, Transform, Load) processes to move data from various sources to our data warehouse
Write and optimize complex queries and scripts using PL/SQL and Oracle to transform and load data
Automate and orchestrate data workflows using shell scripting (Unix/korn shell)
Utilize AWS CLI for tasks such as managing data in S3 or interacting with other AWS services
Debug and troubleshoot data pipeline issues to ensure data accuracy and availability for downstream consumers
Collaborate with stakeholders and team members to understand data requirements and deliver reliable solutions

What we offer

Flexible working format - remote, office-based or flexible
A competitive salary and good compensation package
Personalized career growth
Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
Active tech communities with regular knowledge sharing
Education reimbursement
Memorable anniversary presents
Corporate events and team buildings
Other location-specific benefits

Applications Development Senior Group Manager

This role will be part of the Risk Data team and is a senior management level po...

Location

United Kingdom , London

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

Strong academic record, ideally with a Bachelor’s or Master’s degree in Computer Science or engineering or related technical discipline
Proven experience in enterprise application development with full stack technologies
Strong Architect and hands on technical experience in implementing large volume real time complex solutions in Big Data Platforms & Public Cloud platforms
Experience in Data architecture, strong Software development fundamentals, data structures, design patterns, object-oriented principles
Experience in design and delivery of multi-tiered applications and high performance server side components
Skills on system performance tuning, high performance, low latency, multithreading and experience with Java server side programming
Preferred experience in Handling high volumes of data and working with In-memory databases and Caching solutions
Experience of building and leading teams, ideally with a global resource profile and demonstrated ability to deliver large projects efficiently and on time
Significant experience in large Financial Services Technology services companies is expected for this position
Hands-on development, architecture and leadership experience in real-time data engineering platforms implementation

Job Responsibility

Lead the efforts in Institutional Data Platform (ICG) that span multiple businesses, products and functions
Delivery of Price Risk related Data initiatives and Capital reporting (GSIB) related deliverables
Establish strong relationships with the global business stakeholders and ensure transparency of project deliveries
Actively identify and manage risks and issues, working with disparate teams to create mitigation plans and follow-through to resolution
Adhere to all key Project Management (PMQC) & Engineering Excellence standards
Ensure timely communications to Senior Technology Management and Business Partners in Front Office, Middle Office & other Operations functions
Drive the design and development of system architecture, work with end-users of the systems, and enhance the quality of deliverables
Ensure staff follows Citi documented policy and procedures as well as maintain desktop procedures and supporting documentation for filings on a current basis and in comprehensive manner
Ensure change is managed with appropriate controls, documentation, and approvals including implementation of new and revised regulatory reporting requirements
Manage and maintain all disaster recovery plans, oversee appropriate testing, and provide permit-to-operate for new applications

What we offer

27 days annual leave (plus bank holidays)
A discretional annual performance related bonus
Private Medical Care & Life Insurance
Employee Assistance Program
Pension Plan
Paid Parental Leave
Special discounts for employees, family, and friends
Access to an array of learning and development resources

Fulltime

Middle Python Engineer

We’re opening the position of a Middle Python Engineer (Python, pandas, FastAPI)...

Location

Poland

Salary:

Not provided

Edvantis

Expiration Date

Until further notice

Requirements

Strong knowledge of the Python programming language and the relevant ecosystem (boto3, AWS, Snowflake, SQL, HTTP, REST API, OAuth2, RegExp, Xpath, unit testing)
Understanding the infrastructure of AWS or Azure
Good knowledge of CI/CD pipelines and version control tools (e.g., Git, GitHub Actions, Azure DevOps)
Responsibility and attention to detail
focus on quality
Readiness to work with enabler assignments: researching open data sources and reports data review
Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent experience)
English level – Upper-Intermediate or higher (sufficient to handle conversation in video-off mode)

Job Responsibility

Develop and optimize scalable back-end services and APIs using Python
Design and implement AI-driven agents to enhance efficiency
Work with cloud platforms to deploy and manage AI-driven applications
Develop secure, high-performance microservices and data pipelines
Optimize database performance and ensure data consistency in SQL databases (e.g., PostgreSQL)
Collaborate with Front-End and AI/ML Teams to build end-to-end AI-powered solutions
Ensure best practices in CI/CD, DevOps, and cloud infrastructure management
Stay up to date with AI advancements and emerging back-end technologies

What we offer

Remote-first work model with flexible working hours (we provide all equipment)
Comfortable and fully equipped offices in Lviv and Rzeszów
Competitive compensation with regular performance reviews
18 paid vacation days per year + all state holidays
12 days of paid sick leave per year without a medical certificate + extra paid leave for blood donation
Medical insurance with an affordable family coverage option
Mental health program which includes free and confidential consultations with a psychologist
English, German, and Polish language courses
Corporate subscription to learning platforms, regular meetups and webinars
Friendly team that values accountability, innovation, teamwork, and customer satisfaction

Fulltime

Middle Data Engineer

N-iX

Location:

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 22, 2026

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Looking for more opportunities? Search for other job offers that match your skills and interests.

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Job Posted:
January 22, 2026