Jobs at Djinni

Dataforest is seeking a QA Engineer to join our team. If you’re a strong Manual QA who actively uses AI to generate test data and write basic checks faster — you’ve found the right place. We’d love to see your CV!

    What you'll do:

• Conduct manual testing of web applications, assessing both frontend UI/UX and backend API behavior.
• Perform functional, regression, integration, and exploratory testing throughout the entire SDLC.
• Perform API testing using Postman or similar tools.
• Perform database validation using SQL queries to verify data integrity, transformations, and backend logic.
• Using AI create and maintain test documentation (test cases, checklists, bug reports).
• Leverage AI assistants (e.g. Claude) to create automated API and E2E scripts to optimize manual QA workflows.
• Collaborate closely with developers and project managers to maintain high quality standards across the SDLC.
   

     You'll be a great fit if you have:

• 2+ years of hands-on QA experience with web applications built on modern JS frameworks (React, Vue, Angular, pure JS) and REST APIs.
• Active use of AI in your workflow: practical experience applying AI tools for automation, test case generation, or troubleshooting.
• API testing experience using Postman (collections, environments, basic scripts).
• SQL skills for database querying and data validation.
• Solid understanding of the Software Development Life Cycle (SDLC) and QA methodologies.
• Hands-on experience writing clean, comprehensive test documentation.
• Proficiency with teamwork tools: JIRA, Confluence, Git/Bitbucket.
• Strong communication skills and a positive, team-oriented mindset.
• English level: Intermediate (B1) or higher (strong written and spoken communication for daily team collaboration).
   

     Would be a plus:

• Experience testing Stripe, PayPal, or other third-party payment integrations.
• Basic understanding of CI/CD pipelines and how QA fits into automated delivery workflows.
• Experience testing data engineering projects: ETL pipelines, data warehouses, or data integration workflows.
• Experience with web scraping projects — understanding of scraping logic, data extraction validation, and edge case handling.
• Experience with AI/ML product testing — familiarity with testing LLM-based features, recommendation systems, or other non-deterministic outputs.
  
  We ensure your growth with:
• Competitive salary fixed in USD
• Flexible working schedule and fully remote work format
• Paid vacation days and sick leave days 
• Personal and professional development opportunities
• Participation in building innovative projects from scratch using modern technologies
• Team-building activities and corporate events
• English classes and educational events.

Join the Dataforest Team!

We are actively expanding our team and looking for strong new talent to join our ranks. If you are a Data Engineer seeking a friendly team, a healthy working environment, and a flexible schedule — you have found the right place to send your CV!

You'll be a great fit if you have:

- 2+ years of experience with Python;
- 2+ years of experience as a Data Engineer;
- Experience with Pandas;
- Experience with SQL DB / NoSQL (Redis, Mongo, Elasticsearch) / BigQuery;
- Familiarity with Amazon Web Services;
- Experience with Kafka;
- Knowledge of data algorithms and data structures is a MUST;
- Working with high volume tables 10m+.

What you'll do:

- Create ETL pipelines and data management solutions (API, Integration logic);
- Different data processing algorithms;
- Involvement in creation of forecasting, recommendation, and classification models.

Would be a plus:

- Experience with Spark (pyspark);
- Experience with Airflow;
- Experience in statistics;
- Knowledge of DS and Machine learning algorithms.

We ensure your growth with:

- Great networking opportunities with international clients, challenging tasks;
- Building interesting projects from scratch using new technologies;
- Personal and professional development opportunities;
- Competitive salary fixed in USD;
- Paid vacation and sick leaves;
- Flexible work schedule;
- Friendly working environment with minimal hierarchy;
- Team building activities, corporate events.

Job Description

Required Hard Skills (The "Must-Haves")

· Expert C/C++: 3+ years of experience in strictly kernel-mode software development.

· WinDbg Mastery: Ability to perform "post-mortem" debugging without symbols for third-party conflicts, and live kernel debugging using VMWare/Hyper-V/KDNET. You must be comfortable analyzing stack traces, register states, and trap frames.

· Windows Internal Knowledge: Deep understanding of:

• IRQLs (Interrupt Request Levels) and DPC/Dispatcher mechanics.
• Memory Management (Paged vs. Non-Paged pool, MDLs).
• Synchronization primitives (Spinlocks, Mutexes, Pushlocks).

· File System Filters: Proven experience with the Filter Manager Model (FltMgr) and Minifilter drivers (FltRegisterFilter, Pre/Post operation callbacks).

· EDR/Security Driver Experience: Familiarity with:

• ObCallbacks (ObRegisterCallbacks).
• Process/Thread/Image Load Notify routines (PsSetCreateProcessNotifyRoutineEx, etc.).
• Avoiding deadlocks when injecting logic into high-frequency system paths.

Preferred Skills (The "Nice-to-Haves")

· Reverse Engineering: Proficiency with IDA Pro or Ghidra to analyze potential conflicts with third-party drivers (e.g., Antivirus conflicts causing the crash).

· x64 Assembly: Ability to read disassembly to pinpoint the exact instruction causing the fault when source lines are ambiguous.

· WHQL/WHCP: Experience with the Windows Hardware Compatibility Program signing process (in case the fix requires re-certification) and Microsoft Virus Initiative program

Job Responsibilities

Write kernel and Driver software that can reach the internals of the operating system.

· Implement novel collection and protection techniques.

· Write robust driver infrastructure.

· Optimize for extreme performance constraints.

· Research uncharted territories of the Windows kernel, drivers, APIs, and internal mechanisms.

· Crash Dump Analysis: Perform deep-dive analysis of kernel memory dumps (Minidumps and Complete Memory Dumps) to identify the root cause of the crash (e.g., race conditions, stack overflows, invalid memory access, IRQL violations).

· Reproduction & Isolation: Design stress tests and verification procedures to reliably reproduce the BSOD in a controlled environment using tools like Driver Verifier and specific load-testing scripts.

· Code Review & Remediation: Audit the existing C/C++ driver code (specifically Minifilter callbacks and process notification routines) for thread safety, proper lock usage (Spinlocks/ERESOURCE), and memory handling.

· Patch Implementation: Implement robust fixes for the identified issues, ensuring zero regression in driver performance or security efficacy.

· Validation: Verify fixes using Microsoft Driver Verifier and HLK (Hardware Lab Kit) basics to ensure stability under high stress.

Department/Project Description

Our clients is an endpoint security company looking for an expert-level Windows Kernel Driver Specialist to assist engineering team in developing next generation Endpoint Detection and Response (EDR) agent. We are looking for an experienced individual to join a team that is responsible for developing our cutting-edge collection, prevention and protection technologies using both documented and undocumented proprietary kernel mode techniques.
The team develops the core kernel technologies for a wide variety of products, from EDR to next-gen AV, including work that encompasses many aspects of kernel development, from infrastructure through filter drivers to function hooking, to name a few.

Level: Senior Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Senior SDET to lead the design of automated test frameworks and testing strategy for a large-scale distributed data platform. You will own the quality of the query engine, connectivity layer, and backend services end-to-end — from framework architecture through CI/CD infrastructure across all major clouds — and mentor middle engineers on the team.

This is a data-heavy, backend-focused role. We are not looking for web/UI QA engineers — the work centers on validating distributed query execution, data correctness at scale, connectivity drivers, and backend microservices.

Responsibilities

• Architect, design, and evolve automated test frameworks in Python / pytest for backend services, REST APIs, and distributed data components.
• Define testing strategy for new features and platform components — coverage, risk assessment, and quality gates.
• Own end-to-end, integration, performance, and regression testing covering SQL query execution, data correctness at scale, and platform APIs.
• Lead performance and load testing efforts with JMeter, including workloads over JDBC / ODBC / Arrow Flight drivers.
• Design and validate large-scale data testing scenarios — query plans, result correctness across heterogeneous data sources, metadata consistency, and behavior under high concurrency.
• Own CI/CD test pipelines in Jenkins — architect, maintain, and continuously improve.
• Provision and manage test environments in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker; drive automation and reproducibility.
• Investigate complex, cross-layer failures and drive root-cause analysis with engineering.
• Mentor middle SDETs, review test designs, and set quality standards across the team.
• Partner with US-based development leads on shift-left practices, testability, and release readiness.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Python, including pytest, with deep understanding of OOP, software design principles, and test framework architecture.
• SQL & Data: Advanced SQL skills and strong understanding of relational and analytical data systems, including query execution internals.
• Data-intensive testing experience: Demonstrated experience testing data-intensive systems — query engines, ETL/ELT pipelines, streaming platforms, or analytical databases. Candidates with only web/UI QA backgrounds are not a fit.
• Testing experience: 5+ years in backend/system test automation, with demonstrated ownership of test strategy and infrastructure.
• CI/CD & DevOps: Solid experience architecting and maintaining Jenkins pipelines and test environments.
• Containers & Orchestration: Strong working knowledge of Docker and Kubernetes (running workloads, debugging pods, deploying complex environments).
• Cloud: Hands-on experience with at least one major cloud (GCP, AWS, or Azure); exposure to more than one is a strong plus.
• Version Control: Confident with Git / GitHub workflows and code review practices.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.
• Leadership: Prior experience mentoring engineers, defining test strategy, or leading a QA/SDET function.

Desired Skills

• Deep experience testing REST APIs and backend microservices at scale.
• Hands-on with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Strong understanding of modern data lakehouse concepts, open table formats (Apache Iceberg), and data warehousing.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Performance testing with JMeter or comparable load-testing tools at production scale.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Deep understanding of query plan generation, query acceleration / materializations, and metadata integrity in distributed data systems.
• Prior experience leading a QA/SDET function in a data-platform or database engineering environment.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK.

Level: Middle Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Middle-level SDET to design and maintain automated tests for a large-scale distributed data platform. You will validate the correctness, performance, and reliability of the query engine, connectivity layer, and backend services across all major clouds.

This is a data-heavy, backend-focused role. We are not looking for web/UI QA engineers — the work centers on validating distributed query execution, data correctness at scale, connectivity drivers, and backend microservices.

Responsibilities

• Develop and maintain automated tests in Python / pytest for backend services, REST APIs, and distributed data components.
• Write end-to-end, integration, and regression tests covering SQL query execution, data correctness, and platform APIs.
• Support performance and load testing with JMeter, including workloads over JDBC / ODBC / Arrow Flight drivers.
• Validate data-intensive scenarios — query plans, result correctness across data sources, metadata consistency, and behavior under concurrency.
• Contribute to CI/CD test pipelines in Jenkins — configure, maintain, and troubleshoot.
• Provision and manage test environments in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker.
• Investigate failures across the stack — query engine, distributed services, drivers, infrastructure — and drive them to resolution with engineering.
• Collaborate with US-based developers on testability and quality gates.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Python, including pytest, with a solid grasp of OOP and software design principles.
• SQL & Data: Strong SQL skills and solid understanding of how relational and analytical data systems work.
• Data-intensive testing experience: Hands-on experience testing data-intensive systems — query engines, ETL/ELT pipelines, streaming platforms, or analytical databases. Candidates with only web/UI QA backgrounds are not a fit.
• Testing experience: 3+ years in backend/system test automation or SDET roles.
• CI/CD & DevOps basics: Practical experience with Jenkins pipelines and deploying/maintaining test environments.
• Containers: Working knowledge of Docker and basic Kubernetes (running workloads, debugging pods, kubectl fluency).
• Cloud: Comfortable operating in at least one major cloud (GCP, AWS, or Azure).
• Version Control: Confident with Git / GitHub workflows.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.

Desired Skills

• Experience testing REST APIs and backend microservices at scale.
• Familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Understanding of modern data lakehouse concepts, open table formats (Apache Iceberg), and data warehousing.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Performance testing with JMeter or comparable load-testing tools.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Understanding of query plan generation, query acceleration / materializations, and metadata integrity in distributed data systems.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK

Level: Senior Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Senior Software Engineer to design, build, and own significant components of the core query engine of a large-scale distributed data platform. You will lead work across query planning, optimization, and execution — driving architectural decisions, mentoring middle engineers, and pushing the platform's performance and scalability boundaries across all major clouds.

This is a systems-level, backend engineering role focused on distributed data processing internals — not application development or CRUD services.

Responsibilities

• Architect, design, and implement significant components of the query engine — planner, optimizer, execution operators, memory management, and data access layers.
• Write and review high-quality, performance-critical code in Java and/or C++.
• Own end-to-end delivery of features from technical design through production rollout.
• Drive performance optimization work — profiling, benchmarking, and eliminating bottlenecks in latency- and throughput-sensitive paths.
• Integrate deeply with columnar formats, open table formats, and connectivity drivers.
• Mentor middle engineers, lead code reviews, and set technical standards for the team.
• Contribute to CI/CD architecture and quality processes across Jenkins, containerization, and multi-cloud deployment (GCP, AWS, Azure via Kubernetes / Docker).
• Debug complex, cross-layer issues spanning query planning, distributed execution, memory management, and I/O.
• Partner with US-based engineering leads on design reviews, architectural decisions, and roadmap execution.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Java or C++, with deep understanding of OOP, systems design, memory management, and concurrency. Candidates strong in both are especially valued.
• SQL & Data: Advanced SQL skills and strong understanding of query execution internals — planning, optimization, and operator implementation.
• Data processing systems experience: Demonstrated experience building or extending data processing systems — query engines, distributed databases, ETL/ELT frameworks, or analytical platforms.
• Engineering experience: 5+ years in backend/systems software engineering, with a track record of owning significant components.
• CI/CD & DevOps: Solid experience with Jenkins and modern engineering workflows.
• Containers & Orchestration: Strong working knowledge of Docker and Kubernetes.
• Cloud: Hands-on experience with at least one major cloud (GCP, AWS, or Azure); exposure to more than one is a strong plus.
• Version Control: Confident with Git / GitHub workflows and rigorous code review practices.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.
• Leadership: Prior experience mentoring engineers, leading technical designs, or owning components end-to-end.

Desired Skills

• Deep experience with Apache Arrow (columnar in-memory format).
• Hands-on experience with Apache Calcite (SQL parsing, planning, optimization framework).
• Experience with Gandiva or LLVM-based expression compilation and code generation.
• Experience with open table formats — Apache Iceberg, Delta Lake, or Hudi.
• Deep familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Deep understanding of query planning, optimization (cost-based, rule-based), and execution internals.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Track record of performance optimization at the systems level — profiling, vectorization, cache/memory-conscious design.
• Prior experience contributing to open-source data infrastructure projects.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK

Level: Middle Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Middle-level Software Engineer to work on the core query engine of a large-scale distributed data platform. You will develop features across query planning, optimization, and execution, contribute to performance-critical components, and help evolve the platform's ability to process massive analytical workloads across heterogeneous data sources.

This is a systems-level, backend engineering role focused on distributed data processing internals — not application development or CRUD services.

Responsibilities

• Develop and maintain features across the query engine — planning, optimization, execution, and data access layers.
• Write high-quality, performance-conscious code in Java and/or C++.
• Work with SQL semantics, query plans, and execution operators over large-scale distributed data.
• Integrate with columnar formats, open table formats, and connectivity drivers used across the platform.
• Contribute to CI/CD pipelines and automated testing — participate in build, test, and release workflows in Jenkins.
• Deploy and validate work in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker.
• Debug complex issues spanning query planning, distributed execution, memory management, and I/O.
• Collaborate closely with US-based engineering teams on design reviews, code reviews, and technical decisions.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Java or C++, with solid OOP and software design fundamentals. Candidates comfortable with both are especially valued.
• SQL & Data: Strong SQL skills and solid understanding of relational and analytical data systems, including query execution concepts.
• Data processing systems experience: Hands-on experience with data processing systems — query engines, distributed databases, ETL/ELT frameworks, or analytical platforms.
• Engineering experience: 3+ years in backend/systems software engineering.
• CI/CD & DevOps basics: Practical experience with Jenkins pipelines and modern development workflows.
• Containers: Working knowledge of Docker and basic Kubernetes (running workloads, debugging pods, kubectl fluency).
• Cloud: Comfortable operating in at least one major cloud (GCP, AWS, or Azure).
• Version Control: Confident with Git / GitHub workflows.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.

Desired Skills

• Experience with Apache Arrow (columnar in-memory format).
• Familiarity with Apache Calcite (SQL parsing, planning, optimization framework).
• Exposure to Gandiva or LLVM-based expression compilation.
• Experience with open table formats — Apache Iceberg, Delta Lake, or Hudi.
• Familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Understanding of query planning, optimization, and execution internals.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Experience with performance profiling and optimization of latency-sensitive systems.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK

Join Whitechain — Build the Future of Web3!

At Whitechain, we’re on a mission to revolutionize blockchain, smart contracts, and cryptography. As part of the WhiteBIT ecosystem, we’re building cutting-edge Web3 solutions, from our own EVM blockchain to non-custodial wallets, DeFi platforms, and GameFi experiences.We’re looking for ambitious innovators to help us bridge the gap between retail and corporate blockchain adoption. If you’re passionate about decentralization, Web3, and shaping the future of digital economies, this is your chance to make an impact!

The future of Web3 starts with you — join us as a DevOps Engineer!

Requirements

— 3+ years in DevOps / SRE / infrastructure roles
— 1 year experience with blockchain/ crypto infrastructure background (Ethereum, OP Stack or similar)
— Strong Kubernetes: deployment, debugging, network policies, Helm
— Terraform (modules, state management, multiple providers)
— CI/CD with GitHub Actions or equivalent; GitOps principles
— AWS (IAM, VPC, EC2, S3, KMS)
— Confident Linux administration and Bash scripting
— Monitoring and alerting with Prometheus / Grafana
— Git and PR-based workflow

Responsibilities

— Operate and evolve Kubernetes clusters (testnet and upcoming mainnet) via ArgoCD and Helm
— Deploy, upgrade and troubleshoot OP Stack components: op-node, op-reth, batcher, proposer, conductor
— Maintain infrastructure as code: Terraform (AWS, Cloudflare) and Ansible for node configuration
— Own and improve CI/CD pipelines (GitHub Actions): image builds, registry publishing, automated IaC tag bumps
— Maintain monitoring and alerting (Prometheus, Grafana); respond to alerts for sequencer lag, batcher stuck, L1 sync, disk
— Participate in the on-call rotation after onboarding
— Follow and keep runbooks up to date; document on-chain and operational procedures
— Configure and protect public RPC endpoints (rate limiting, Cloudflare WAF)

Good to have

— Direct OP Stack experience (op-node, op-reth, batcher, proposer, conductor)
— ArgoCD and GitOps in production
— Ansible
— Cloudflare (WAF, rate limiting, CDN)
— Key management: AWS KMS or HashiCorp Vault
— Incident response experience and postmortem writing

About the Role:

We are looking for an experienced Senior Data Engineer to join our team and help build scalable, secure, and high-performance data platforms. In this role, you will work closely with Data Architects, Engineers, Analysts, DevOps specialists, and Data Scientists to design, develop, and optimize modern cloud-based data ecosystems.

This is a full-time remote position for a senior-level professional who can commit 40 hours per week and take ownership of complex data engineering initiatives.

🔹 Responsibilities:

As a Senior Data Engineer, you will:

* Collaborate with Data Architects on designing and implementing data solutions across Azure, AWS, or IBM Cloud environments

* Build, maintain, and optimize modern data ecosystems and data pipelines

* Develop and support data ingestion, transformation, and processing solutions

* Work closely with cross-functional teams, including Data Engineers, Analysts, DevOps Engineers, and Data Scientists

* Implement security best practices to ensure the reliability and protection of cloud infrastructure and data processes

* Apply modern engineering principles and methodologies to support business growth and innovation

* Identify opportunities to improve data quality, reliability, scalability, efficiency, and overall platform performance

* Optimize data solutions to balance performance, maintainability, and cost-effectiveness

* Design and execute unit, system, and integration testing strategies

* Contribute to continuous improvement initiatives and engineering best practices

🔹 Requirements:

* Strong commercial experience as a Data Engineer

* Advanced proficiency in Python for data processing, transformation, and analysis

* Strong expertise in SQL, including query optimization and database performance tuning

* Hands-on experience with Azure and/or AWS data platforms and services

* Experience designing and maintaining scalable cloud-based data solutions

* Solid understanding of data engineering best practices, data modeling, and ETL/ELT processes

* Experience with software development lifecycle methodologies and Agile environments

Nice to Have:

* Experience with IBM Cloud data services

* Knowledge of data governance and cloud security practices

* Experience working in enterprise-scale data environments

🌍 What We Offer:

-Paid vacation and sick leave

-We provide the equipment you need to work comfortably (if required)

-We cover 50% of courses if you want to grow professionally

-Regular salary reviews based on your performance

-Competitive salary, depending on your experience

-Always on-time payments — no delays

-A normal, supportive team without unnecessary bureaucracy

The company "D4 Group" is a thriving outsourced firm and is currently seeking a full-time UX Designer.

The company's primary focus is to deliver design and development services, with core activities encompassing UX/UI Design, SaaS solutions, and Mobile app development.

Requirements:

- Exceptional UX design skills!

- 2+ years of experience in UX/UI design (Web/Mobile/Products/Dashboards).

- Proficiency in Figma, Sketch, Adobe (PS/AI/XD) tools.

- Impressive Dribbble & Behance portfolio.

- Familiarity with Jira, G Suite, and Confluence.

- Understanding of current UX/UI design trends and best practices.

- Experience working with Enterprise clients.

- Animation creation experience in After Effects.

We offer:

- Competitive salary that increases with qualification.

- Timely payments.

- remote work possibility.

- Support for professional development.

- Supportive management.

- Working schedule from Monday to Friday, either from 10:00 am to 7:00 pm or from 9:00 am to 6:00 pm. Lunch break.

If you are seeking a position where you can work on modern projects within a small but friendly team, where you can apply all your skills and continue to grow professionally, please send your resume promptly. We might be looking for you!

📍Hybrid in Kyiv, Full-time

Trust Sourcing is a fast-growing IT outstaffing company with great ambitions. We operate in a very competitive market so every day we are looking for opportunities to be better. To be faster. Having a lot of ideas we are very open to fresh ones.
 

We are looking for an IT Specialist with a strong focus on IT Asset Management and System Administration (Windows). The role combines hands-on technical support, lifecycle device management, and basic system administration. The specialist will be responsible for configuring and maintaining user devices, resolving software issues, and supporting internal users on demand.

This role requires B1+ English communication skills (written and verbal) and the ability to explain technical topics clearly at a basic level to non technical users.
 

Key Responsibilities

IT Asset Management:

— Maintain inventory of company IT assets (laptops, peripherals, accessories).

— Track asset lifecycle: procurement, setup, assignment, replacement, and decommissioning.

— Search for IT equipment availability across European markets using online tools and vendor platforms.

— Communicate with store managers and suppliers via email and messengers to confirm availability, pricing, and delivery timelines.

System Administration & Workstation Management:

— Install, reinstall, and configure Windows 11 on company devices.

— Perform initial system setup: drivers, system updates, security settings, and standard configurations.

— Install, configure, and update required software and tools.

— Ensure devices are ready for employee use according to internal standards.
 

IT Support & Troubleshooting:

— Provide on-demand IT support to internal users.

— Diagnose and resolve software-related issues (OS, applications, drivers, system settings).

— Apply structured troubleshooting steps and escalate issues when required.

— Clearly explain issues and solutions to users in a simple, understandable way.
 

Documentation & Communication:

— Document common issues, solutions, and configuration steps.

— Communicate clearly with non-technical users and internal stakeholders.

— Use Google Search efficiently to quickly find solutions, documentation,

drivers, and vendors.
 

Requirements

— Proven 0,5+ years of experience as an IT Support Specialist/ System Administrator/Hardware Specialist, or similar role.

— Understanding of Windows 11 principles and architecture.

— Hands-on experience with: OS installation and reinstallation, System configuration and optimization, Software installation and troubleshooting.

— Basic understanding of IT hardware (laptops, monitors, peripherals).

— Ability to independently research solutions using online resources.

— Intermediate B1+ English level or higher (verbal and written).

— Ability to explain technical topics on a basic, user-friendly level.

— Confident written communication via email and messengers.

— Strong problem-solving mindset.

— Ability to work independently and manage multiple support requests.

— Attention to detail in asset tracking and documentation.

— Responsible and service-oriented approach to internal support.
 

Nice to Have

— Experience with IT asset tracking tools or spreadsheets.

— Familiarity with remote support tools.

— Experience working with distributed or international teams.
 

What We Offer

— Stable workload with clear responsibilities.

— Exposure to real IT operations and asset management processes.

— Opportunity to grow toward advanced system administration roles.

— Fair compensation package +bonuses;

— Office in the Kyiv center;

— Accounting coverage, professional courses;

— Friendly team and many more.

Referral

We are always searching for new talents and welcome your recommendations.
Have someone on your mind? Send them to us. 
For a successful hire for this position, you will receive a 100 USD Gross bonus

We are looking for a Middle .NET Developer to join our team and work on an exciting FinTech project. You'll collaborate with experienced engineers to build scalable, secure, and high-performance backend solutions.

Responsibilities:

• Develop and maintain backend services using C# and .NET.
• Design and implement RESTful APIs.
• Participate in architecture discussions and code reviews.
• Collaborate with cross-functional teams to deliver high-quality software.
• Write clean, maintainable, and well-tested code.
   

Requirements:

• 3+ years of commercial experience with C#/.NET.
• Strong knowledge of .NET Core / .NET 6+ and ASP.NET Core.
• Experience with REST APIs.
• Solid understanding of SQL databases (MS SQL Server or PostgreSQL).
• Experience with Entity Framework Core.
• Knowledge of OOP, SOLID principles, and design patterns.

Nice to Have:

• Docker and Kubernetes.
• Azure or AWS.
• Experience with microservices.
• Previous experience in the FinTech domain.

We Offer:

• Remote work and flexible working hours.
• Legal support.
• Paid sick leaves.
• Paid vacations.
• Medical insurance. 
• Free English classes.

Meet the YozmaTech YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster. We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact. Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is a trailblazing force in the tech industry, propelling the future of Cloud Asset Management. Their solution empowers DevOps, SRE, and Platform Engineering teams to master their cloud landscape, detect drifts, invoke policy-as-Code, and maintain a codified cloud across Multi-Cloud and Kubernetes clusters. The client specializes in providing comprehensive asset inventory, insights, and Infrastructure-as-Code information. The client is a fast-growing startup recognized as an emerging innovator in the DevOps community.

Weʼre looking for a talented QA Automation AI Native Engineer to join our R&D group. As an integral part of the team, you will play a key role in enhancing and scaling our automation infrastructure, bringing Firefly's automation framework to the next level. Your responsibilities will include designing automated tests to ensure optimal product quality and health, identifying and troubleshooting bugs, and closely collaborating with our software design and platform teams.
In this unique R&D role, you will be at the forefront of our next-generation AI Agentic tech, cloud-based solutions, taking on challenges related to performance, scalability, and availability in multi-cloud environments. You will work with cutting-edge services and tools, driving innovation across our systems and development lifecycle. If you thrive in dynamic environments, excel in modern programming, and have a deep knowledge of technologies and infrastructure, weʼd love to hear from you!

Key Requirements:
🔹 At least 4 years of experience in Python within an automation framework API or Backend focused);
🔹Hands-on experience working with AI coding agents such as Claude Code, Codex, or GitHub Copilot as part of your daily workflow;
🔹Self-driven and responsible, with a “can-doˮ attitude, strong interpersonal skills, and excellent communication abilities;
🔹Previous experience in a SaaS company, with a strong understanding of cloud-based testing and tooling.
🔹At least one of the following:
- Experience in cloud infrastructure: AWS, GCP or Azure.
- Experience working with relational (PostgreSQL) and non-relational (Mongo) databases.
- Experience working with message queues and event driven architecture.
- DevOps practices and technologies such as Terraform, K8s, VCS providers and CI systems
🔹 English – Upper-Intermediate or higher.


What you will do:
🔹 Operate within an agile R&D team, owning the automation framework that validates the platform end to end;
🔹 Design and maintain spec-driven API tests that keep pace with evolving product APIs;
🔹 Shape how we work with modern AI tooling — coding agents, agent skills, and MCP; integrations — embedding it into the pipeline (e.g. AI-assisted failure triage);
🔹 Build and scale CI/CD for high-throughput, parallelized testing across environments;
🔹 Deliver safe multi-region, multi-tenant testing;
🔹 Provision ephemeral test environments as infrastructure-as-code;
🔹 Own test-suite reliability and security: secret hygiene, dependency integrity, fail-closed gates, and clear reporting;
🔹 Make it easy for developers to contribute tests through reusable patterns, scaffolding, and docs.

Interview stages:
🔹 HR-interview;
🔹 Initial Screening (30 min);
🔹 Technical Task (candidate completes a test assignment);
🔹 Technical Interview (review with architect/technical team);
🔹 Final Interview ;
🔹 Reference check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

— Remote (Ukraine/Europe)

— Schedule: Flexible

Intelvision is looking for a proactive and results-driven Sales Development Specialist to generate high-quality leads, manage Upwork channels, and contribute to building a strong and sustainable sales pipeline.

Responsibilities:

— Manage assigned Upwork profiles, ensuring all outreach aligns with defined positioning, services, and messaging frameworks;

— Source and identify relevant opportunities on Upwork, focusing on ICP fit, deal size and overall business potential;

— Prepare and submit high-quality bids, adapting messaging when needed to improve relevance and response rates;

— Maintain a consistent bidding pipeline, balancing volume with quality and conversion potential;

— Perform initial qualification of opportunities based on relevance, budget, and scope realism, focusing on high-conversion leads;

— Create and maintain accurate lead records in CRM (HubSpot), capturing key context and ensuring proper pipeline hygiene;

— Handoff qualified leads to Sales or SDR teams in a structured and timely manner;

— Collaborate with Sales and Marketing teams to share insights on lead quality, client needs, and objections, contributing to the continuous improvement of outreach strategy;

— Track key performance metrics (bids, replies, conversions) and continuously optimize sourcing, targeting, and messaging;

— Follow internal processes and maintain discipline in daily activities to ensure consistent and scalable lead generation;

Requirements:

— Strong ownership mindset with the ability to independently drive sales channels end-to-end, ensuring consistent pipeline generation and long-term client value;

— 2+ years of experience in B2B sales or lead generation, with a solid understanding of sales funnels, pipeline management and lead qualification (ICP, budget, scope);

— Client-centric approach with a strong service mindset: ability to build trust, understand client needs, and clearly articulate value rather than just “sell”;

— Strong discovery and listening skills, with the ability to ask the right questions and identify high-potential opportunities;

— Solid understanding of IT services (e.g., web development, cloud solutions, AI, integrations) and ability to translate client needs into business opportunities (no coding required);

— Experience working with CRM systems (preferably HubSpot) and maintaining structured, accurate pipeline data;

— Proven ability to handle objections and keep conversations engaging;

— Process-oriented mindset with the ability to follow, optimize, and scale sales processes, as well as track key metrics (bids, responses, conversions);

— Hands-on experience with Upwork or similar platforms, including profile positioning, writing effective proposals, and identifying high-quality projects (strong advantage);

— Excellent communication skills (C1—C2 English), both written and spoken;

What we offer:

— Remote-first work environment;

— Long-term permanent position in a stable industrial technology company;

— Opportunity to work on real-time systems used in production environments worldwide;

— High ownership culture with direct impact on hardware/software architecture;

— Flat hierarchy and collaborative engineering team

— Paid sick leaves and vacations;

— Complete hardware package;

— Refund of personal professional growth (courses, platforms, etc);

— Personal development plan;

— Internal accountant;

— Ability to select currency for your contract.

GlobalLogic Ukraine is inviting a Trainee Embedded C Developer to join its Lviv office.

The customer is one of the largest enterprise construction tools manufacturers. They are looking to expand their market with new functionality and hardware solutions.

As a developer, you will implement and support existing embedded system libraries, as well as create integrated hardware-in-the-loop (HIL) testing systems to improve production code quality.

Requirements
We are looking for a Trainee Embedded C Developer to join our Lviv office who would like to:

• Gain experience in embedded software development for microcontrollers
• Improve theoretical and practical knowledge of the C programming language

• Understand and gain experience in modern approaches to integration testing for complete software applications on electronic devices

   

Key skills:

• C programming language
• Basic understanding of the microcontrollers (MCU) and digital/analog electronics

• Intermediate level of English

   

Nice to have:

• Version control systems
• Experience with ARM Cortex-M-based MCUs
• Good knowledge and work experience with embedded interfaces (SPI, UART, I2C etc.)
• Knowledge of the real-time operating systems / multithreading
• Understanding of the Continuous Integration (CI) and either Continuous Delivery or Continuous Deployment (CD) in the software development process

Job responsibilities

• Design and implement new features using the C language
• Develop parts of the embedded tool software according to the provided requirements
• Mantain and update existing software
• Design and implement software for unit and acceptance testing
• Communicate with the customer on a daily basis