Jobs at Djinni

A German AI software startup is hiring 2-3 full-time Software Engineers in Ukraine.

The company has been operating for around 20 months, is growing quickly and is looking for developers interested in a long-term position.

The role is fully remote, with direct employment by the German company.

What matters most

The founder is looking for someone who:

• Understands software and system architecture
• Thinks independently and challenges assumptions
• Makes sound technical decisions
• Takes ownership instead of waiting for detailed instructions
• Uses Claude, Cursor or Codex as part of the daily development workflow
• Understands, reviews and improves AI-generated code
• Communicates clearly in English
• Is available full-time and not studying or working another full-time job

This is an AI-first development environment. The focus is not on writing every line of code manually, but on using AI effectively while maintaining control over architecture, quality and technical decisions.

Years of experience are not the only deciding factor. Senior developers are welcome, but smart and highly capable Junior or Mid-Level candidates will also be considered.

Location

• Ukraine only (western part of ukraine preferred)
• Fully remote

Salary and employment

• EUR 2,000-3,500 gross per month
• Depends on experience, seniority and overall match
• Direct full-time employment by the German company
• Long-term cooperation

• Start as soon as possible

   

Interview process

1. Short introductory interview - approximately 15-20 minutes
2. AI-based take-home task - approximately one working day
3. Final interview with the founder - approximately 90 minutes

The company makes decisions quickly. First interviews are planned within the next 48 hours.

Please apply with

• Your CV (in best case with photo)
• Current location in Ukraine
• Salary expectation
• Earliest possible start date
• A short description of how you use Claude, Cursor or Codex
• One example of a product or system you have built and the technical decisions you made

Inception-1 is a product company that creates AI-driven B2C products designed to help people feel more connected and less alone. Our mission is to build meaningful digital experiences that blend technology with empathy — and to prove that technology can be both human and transformative.

We are looking for a Media Buyer to take end-to-end ownership of Meta performance campaigns, with strong cross-functional collaboration.

Responsibilities:

• Launch, manage, and optimize performance marketing campaigns on Meta.
• Optimize campaigns based on ROAS, LTV, and unit economics.
• Run A/B and split tests across creatives, campaigns, and landing pages.
• Analyze performance data, identify trends and insights, and scale winning approaches.
• Create clear and detailed tasks for photo/video designers and manage execution.
• Develop, maintain, and improve automation and auto-rules for acquisition.
• Conduct competitor analysis and generate growth hypotheses.
   

Requirements:

• Hands-on experience in running and optimizing Meta (Facebook Ads) campaigns.
• Strong experience working with CPA, ROAS, LTV, budgeting, and performance analytics.
• Experience with W2W, W2A, AEM, CAPI + Pixel optimization.
• Proven experience with A/B and split testing of creatives, campaigns, and landing pages.
• Strong analytical skills and data-driven decision-making.
• Experience creating briefs and tasks for designers and managing creative production.
• Experience building and managing auto-rules and campaign automation.
• English level: Upper Intermediate+.
• Hands-on experience with Meta Ads Manager, Tableau, Amplitude, Jira, Confluence, Birch.
• Proven experience in managing and scaling $50K+ daily ad spend.
   

Nice to Have:

• Experience with multiple UA channels: TikTok, Google Ads, Apple Search Ads, Snapchat, Pinterest.
• Proven experience launching campaigns from scratch and scaling with lean budgets.
• Understanding of performance marketing changes after iOS 14.5+.
• Bachelor’s degree in marketing, economics, analytics, or a related field.

What we offer:

• Flexible work schedule and remote-friendly culture.
• Online services of a corporate doctor, and after the probationary period — health insurance in Ukraine
• 20 working days of paid vacation per year, unlimited sick leave.
• All equipment necessary for work.
• Compensation for the best courses on the market, corporate online meetups and lectures, a large library, business and management schools for employees.
   

Join our team of performers, practitioners and global changemakers!

If you’re a talented Data Scientist looking to be part of a fast-growing, innovative R&D team, shape the future of decision-making in business, work on cuttingedge technologies and vast amounts of global real-time data, affect billions of mobile users, and become an industry leader - then let’s talk! Start.io is a mobile data platform that enables organizations to uncover insights and make datadriven decisions that enhance strategies and drive growth. We are seeking a Senior Data Scientist to join our Data Science & Engineering team.

Responsibilities:

• Analyze large and complex data to discover hidden patterns and opportunities;
• Develop and own end-to-end highly scalable data pipelines;
• Develop state-of-the-art machine learning models, and algorithms and build solutions in monetization fields;
• Provisioning data models for real-time (online) processing;
• Shape new data products, and constantly improve the existing products;
• Collaborate with multiple teams including Product, BI, Analysts, DevOps, R&D and Marketing to lead and accomplish overall solutions;

• Oversee a complete release to production, including analyzing requirements, testing, monitoring and measuring results, multitasking, and quickly responding to critical issues.

   

Requirements:

• B.Sc./M.A/M.Sc. degree in Computer Science, Engineering, Math, Statistics, or other equivalent fields;
• 6 years as a Data Scientist - a strong background in ML concepts and models;
• Hands-on experience with Python, especially with data science ML libraries (regression & classification algorithms e.g. XGB or LGBM, recommendation system algorithms, etc.;
• Understanding of databases and SQL for data retrieval;
• Monitoring and alerting tools (e.g. Grafana, Kibana).

Will be a plus:

• Knowledge in the programmatic advertising landscape – DSPs, SSPs, exchanges – significant advantage;
• Experience with relational (e.g. Vertica, VoltDB) and non-relational (e.g. MongoDB) databases;
• Experience with PMML.

What we offer:

• Help and support from our caring HR team;
• 20 days of vacation;
• The exchange of experience and work with talented colleagues;
• Last but not least - valuable compensation for your efforts.

Langate is an award-winning provider of web development services in 3 main categories: business, healthcare, and education. At Langate, we're passionate about crafting digital solutions that make a real impact. We take immense pride in our strong collaboration with the U.S.  We're here to shape the future of technology, one milestone at a time. 

In addition to technical expertise, we value excellent communication skills. Collaboration and effective teamwork are the cornerstones of our success, and we believe in fostering an environment where everyone’s voice is heard and valued. 

Requirements:  

• 3+ years of experience in IT recruitment, preferably within technology companies or product/service IT environments 
• Strong expertise in full-cycle recruitment: intake meetings, sourcing, screening, interviewing, feedback preparation, offer management, and candidate communication 
• Advanced sourcing skills, including the ability to build sourcing strategies, use multiple channels, and develop diverse candidate pipelines 
• Solid experience conducting competency-based interviews, assessing candidate fit, and providing clear, structured feedback to stakeholders 
• Practical experience using AI tools and creating effective prompts to support recruitment, sourcing, communication, and process optimization 
• Experience with paid sourcing tools such as LinkedIn Recruiter, AI sourcing platforms, or similar tools will be an advantage 
• Strong presentation skills and the ability to communicate recruitment insights clearly to internal stakeholders 

 
Responsibilities: 

• Being responsible for full recruitment processes 
• Managing and developing relationships with hiring managers and candidates 
• Generating and maintaining candidates' pipeline; candidates data processing 
• Developing and updating market knowledge in our service areas of focus 
• Working with Ukrainian and foreign IT labor markets 

Team: HRD, 2 recruiters 

Schedule: 5/2, 8-hour working day (40 hr per week), flexible schedule. 

Hiring process: Recruiters + Tech interview, HRD interview, PI testing 

We offer:  

• Competitive compensation 
• B2B contract, paid sick leave, 20 days of paid vacation 
• Free English lessons    
• Flexible work schedule    
• Official Ukrainian holidays are non-working days   
• Paid courses and certifications    
• Сoach / psychologist consultation    
• Workshops    
• Career development plan 
• Mentoring Education    
• Medical Health Insurance 

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.

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.

N-iX is looking for a Junior Big Data engineer to join our team.

Our client is a leading global healthcare organization, driving innovation in pharmaceuticals, biotechnology, and patient-centric solutions.

We develop advanced data and analytics solutions that help global organizations turn complex data into intuitive digital tools, enabling teams to make informed decisions in their daily operations and long-term strategy. Our projects span modern operational applications, interactive dashboards, and advanced analytics platforms designed to deliver actionable insights across multiple business domains.

About the Role

We are seeking a proactive Senior Big Data Engineer to join our team. In this role, you will be responsible for designing, developing, and maintaining scalable data pipelines and reporting-ready data assets within Palantir Foundry. The ideal candidate will possess a robust background in cloud technologies, data architecture, and a passion for solving complex data challenges.

You will collaborate with a cross-functional team and stakeholders to translate business requirements into scalable data solutions, enabling reporting, improving data quality, and driving data transformation initiatives.

Key Responsibilities

• Collaborate with cross-functional teams to gather business requirements and design, implement, and maintain scalable data pipelines in Palantir Foundry, ensuring end-to-end data integrity and optimized workflows.
• Design and maintain data ingestion, transformation, and orchestration pipelines using Palantir Foundry, Python, and PySpark.
• Develop reporting-ready datasets and data models to support downstream analytics and Power BI reporting.
• Develop, optimize, and maintain efficient ETL/ELT processes to collect, process, and integrate data from multiple sources, ensuring timely and accurate data delivery.
• Implement data quality validation, monitoring, and health checks to ensure reliability and consistency of data assets.
• Monitor pipeline performance, identify bottlenecks, troubleshoot production issues, and continuously improve scalability and processing efficiency.
• Plan and prioritize work independently, communicate progress transparently, and proactively manage changing priorities while proposing practical solutions when requirements evolve.
• Maintain clear technical documentation and promote automation and continuous improvement across data engineering processes.
• Stay current with emerging technologies and industry best practices, incorporating innovative approaches into data engineering solutions.

Required Qualifications

• 2+ years of experience in data engineering, preferably within the pharmaceutical or life sciences industry.
• Strong proficiency in Python and PySpark.
• Proficiency with big data technologies (e.g., Apache Hadoop, Spark, Kafka, BigQuery, etc.).
• Hands-on experience with cloud services (e.g., AWS Glue, Azure Data Factory, Google Cloud Dataflow).
• Expertise in data modeling, data warehousing, and ETL/ELT concepts.
• Hands-on experience with database systems (e.g., PostgreSQL, MySQL, NoSQL, etc.).
• Proficiency in containerization technologies (e.g., Docker, Kubernetes).
• Effective problem-solving and analytical skills, coupled with excellent communication and collaboration abilities;

Nice to have

• Experience with market research data
• Familiarity with Veeva CRM, Reltio, SAP, and/or Palantir Foundry
• Background in pharma or healthcare
• Experience with automation / pipeline optimization

We offer*:

• Reservation from the military
• 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

*not applicable for freelancers

We at ImpactFrames are looking for a skilled and passionate Motion Designer to join our team!

🌀 Who we are:

ImpactFrames is a motion design studio working with tech startups and SaaS companies around the world. We specialize in high-end 2D/3D explainer videos and promotional content that helps products shine — not just visually, but strategically.

Our team includes motion designers, illustrators, UI/UX designers, and project managers — all united by a passion for storytelling and clean visual thinking.

📌 This is the level of quality we strive for:

Check ImpactFramesstudio on YouTube or Behance or impactframesdotcom

🎯 What you’ll do:

• Animate storyboards using After Effects (mostly 2D, some 3D integration).
• Work with UI elements, icons, typography, and transitions.
• Follow and improve visual style based on client branding and art direction.
• Collaborate with designers and PMs to ensure smooth delivery.

🔍 What we’re looking for:

• Solid experience with After Effects (shape animation, transitions, keyframe control).
• Strong sense of timing, composition, and motion logic.
• Portfolio with clean commercial explainer/promo work.
• Basic Illustrator/Photoshop/Figma skills for working with assets.
• English B1 - for understanding briefs & products (team communication in Ukrainian 🇺🇦)
• Responsibility and independence - we appreciate self-driven people.

🚫 Please note:

If your main experience is in YouTube/TikTok editing, this role may not be a good fit. We’re specifically looking for motion designers, not video editors.

🎁 Bonus (but not required):

• Experience working in a motion studio.
• 3D basics (Element 3D, Blender, or C4D).

💬 Why work with us:

• Fixed hourly rate, no micromanagement.
• Work with startups from the U.S. and EU, on high-impact videos.
• Structured and flexible workflow - clear briefs, Telegram/Notion/Drive setup.
• Feedback-rich environment with team support.
• Room to grow - both creatively and professionally.

📥 If this sounds like you - send us your showreel or portfolio (Behance, Vimeo, Google Drive - anything works).

We’d love to chat and see how we can make awesome things together ✨

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.

About DualEntry

Founded in 2024, DualEntry is one of the world’s fastest-growing AI startups.

Our AI-native ERP lets accounting teams achieve more in less time. $5M-ARR businesses to NYSE-listed companies trust DualEntry to automate away manual data entry work with AI. We’re finally making the one-person finance team a reality and putting the pain of legacy ERPs from the 1990’s in the past.

We operate with urgency and ownership. We move fast.

Why This Role Matters Now

Since starting 18 months ago, we’ve raised $100M from world-class investors such as Lightspeed Venture Partners, Khosla Ventures, Contrary Ventures and Google Ventures.

We got there by moving incredibly fast and hiring and sharp, hard-working people.

We’re a small team, growing fast with huge momentum - join early.

This is an intense, hands-on role with full ownership. We expect you to push for excellence and raise the bar.

 

📍 Location: Remote - this role is available across all countries with 4hr+ overlap for the US ET timezone (NYC HQ)

Where you'll create impact

• You’ll own end-to-end execution for backend systems and infrastructure
• You’ll build APIs, services, and real-time systems handling complex accounting logic
• You’ll collaborate with founders, product, and frontend engineering to turn complex workflows into secure, performant systems
• You’ll design, implement, and ship production-ready features at high speed
• You’ll manage data migrations, scaling challenges, external integrations, and end-to-end reliability
• You’ll drive measurable outcomes that accelerate DualEntry’s product velocity and stability

What sets you up for success

• Hardcore work ethic and high agency
• 8+ years of experience in backend engineering
• Proven track record in high-growth, high-ownership environments
• Strong skills in PostgreSQL, SQL, ORMs, migrations, and schema design
• Experience with AWS or comparable cloud infrastructure
• Strong API design and testing experience
• Understanding of CI/CD, deployment, and production readiness
• Bonus: expertise in Python and modern frameworks (FastAPI, Flask, or Django)
• Ability to manage complex systems with evolving requirements
• Fluent English (C1+) with clear communication

Why you’ll thrive here

• Significant equity ownership in one of the top AI companies in the world
• You’re joining early and will grow with DualEntry
• Your feedback shapes the product directly
• High-speed culture
• High-trust environment with high expectations
• Ambitious mission - ERP is one of the largest B2B software markets in the world ($220bn per year), this is a once in a lifetime opportunity to build the next generation ERP in an industry that has not seen new entrants in 30+ years

Benefits & Perks

• Base Salary: $150,000 - $250,000 USD
• Equity: $50,000 - $80,000 USD
• Contract type: B2B
• Remote-first team - the fastest team you will have ever worked with
• Time Off: 15 PTO days + 12 public holidays
• Visa sponsorship option for relocation to NYC within 2+ years
• Early-stage role with high autonomy and real long-term upside
• Enjoy a learning & development budget for courses, certifications, and language learning to keep growing your skills.
• Work where you feel most productive at co-working spaces or from your home office with support for setup, internet, and phone.
• Plus, wellness perks and more to make your workday even better!

We hire the best, expect the best, and give you the masterclass of your career - an archaic and huge industry like ERP only goes through a restructure like this once in a lifetime. It’s hard, it’s intense, and it’s the most rewarding work you’ll ever do.

If you’re hungry, driven, and ready to build something massive, climb aboard!

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.

We are looking for a Strong Junior Full-Stack Developer to join our team and work on projects across fintech, healthcare, e-learning, and travel-tech domains for product and service-based clients from the United States and Europe. 

Requirements: 

• At least 1.5 years of hands-on commercial experience building web applications with React and Node.js 
• Experience with JavaScript, React, Node.js (Nest), TypeScript, HTML5, CSS3 
• Comfortable working with both relational and NoSQL databases 
• Confident with REST API design and integration 
• Practical experience with AI-assisted development tools (Claude Code, Copilot, Cursor, etc.) 
• Upper-Intermediate English or higher 

Responsibilities: 

• Assess technical requirements for tasks and propose an implementation approach 
• Build, maintain, and improve existing applications 
• Enhance the overall user experience of web applications 
• Collaborate closely with developers, designers, and other stakeholders to keep everyone aligned 

• Deliver solutions on time, matching spec and design 

   

We Offer:  

• Innovation Culture: Work in a team that actively experiments with AI and modern development approaches  
• Real Product Impact: Direct collaboration with a client and influence on product decisions  
• Flexible Work: Remote work or a modern office in Kyiv  
• Generous Time Off: 20 paid vacation days + 15 sick leave days annually  
• Professional Growth: Compensation for courses, certifications, and learning resources  
• Cutting-Edge Tools: Access to premium AI tools (Cursor Pro, Сlaude Code, GitHub Copilot, etc.) 

Recruitment Process:  

1. HR Interview  
2. Technical Interview   
3. Final Interview   
4. Job Offer 

If you have any questions or need clarifications, feel free to reach out to our Talent Hunter Team by email.

We're hiring a Senior Media Buyer who has lived in the performance and affiliate world — someone who thinks in CPA, CPL, and ROAS and knows how to scale paid campaigns profitably. You'll own bid and budget strategy across Meta (primary), Google, YouTube, and TikTok, working shoulder-to-shoulder with our creative team to turn winning angles into scaled, profitable lead flow.

Responsibilities

• Own end-to-end media buying across Meta (Facebook/Instagram), Google, YouTube, and TikTok
• Build, test, and scale direct-response campaigns against strict CPA/CPL targets
• Manage large monthly budgets (six figures and up) with daily optimization and a daily ship cadence
• Partner with the creative team to brief, test, and iterate on high-volume ad creative
• Own CRO across landing systems; work with the tech team on server-side tracking and attribution
• Read performance data every day — kill losers fast, scale winners aggressively
• Push lead quality and cost efficiency (we run at −24% average CPA and want to go lower)

Qualifications

• 4+ years in media buying / paid acquisition, with real affiliate or lead-gen / performance-marketing experience
• A proven track record scaling paid social profitably at $100K+/mo budgets
• Deep Meta Ads expertise, plus strength in at least one of Google / YouTube / TikTok
• Fluency in CPA, CPL, ROAS, LTV, and pixel / server-side (CAPI) tracking
• A direct-response instinct — you know what makes a buyer click, not just a browser
• Comfort with high volume, fast iteration, and full ownership

This role offers an exciting opportunity for a motivated professional eager to lead innovative media campaigns within a collaborative environment.

🌍 Full-time | Remote with hubs in Kyiv, Warsaw and Riga | Mental Health Tech

💙 pleso therapy is one of the fastest-growing mental health startups in Central-Eastern Europe. We’re building the mental health platform of the future – a trusted space for people to find support when they need it most. With hundreds of therapists on board and thousands of sessions every month, we’re already changing lives.

The most iconic Ukrainian business of 2021 according to AIN.UA.

We’re looking for a Junior User Acquisition Specialist / PPC Specialist (Google Ads) to join our marketing team and support the day-to-day management and optimization of our Google Ads campaigns across Ukraine, Poland, Romania, and the UK.

You’ll work directly with our User Acquisition Lead, who will remain responsible for strategy and key decisions while helping you develop your technical and analytical skills.

💡 This role is ideal for someone who wants to deepen their Google Ads expertise, work with meaningful products across European markets, and grow under the direct mentorship of an experienced User Acquisition Lead.

🎯 Your Impact Areas

• Manage and optimize Google Ads campaigns across Ukraine, Poland, Romania, and the UK
• Work with Search, Performance Max, and Demand Gen campaigns
• Support daily campaign operations, including budget and bid adjustments, audience management, search query analysis, and ad updates
• Monitor campaign performance and prepare regular reports
• Analyze results and identify opportunities to improve user acquisition and Customer Acquisition Cost
• Review campaign settings carefully and ensure changes are implemented accurately
• Collaborate with the User Acquisition Lead, marketing designer, and analyst on creatives, hypotheses, and priorities
• Use AI tools to speed up data analysis, ad copy creation, and other routine tasks
• Identify opportunities to automate existing Google Ads workflows
• Gradually take ownership of assigned campaigns and markets
• Propose and test new optimization hypotheses as you grow into the role

🧠 Your Superpower Stack

• At least 6 months of hands-on experience with Google Ads; 1+ year would be a strong advantage
• Practical experience with Search and Performance Max campaigns
• Experience working with web products, lead generation, subscription-based products, or mobile applications
• Understanding of core performance marketing metrics and the relationships between campaign actions and results
• Experience managing meaningful advertising budgets; experience with monthly budgets of $20,000–$40,000+ would be an advantage
• Strong attention to detail and the ability to spot errors before they affect campaign performance or budget
• Logical and analytical thinking — you make decisions based on data and can explain the reasoning behind them
• Willingness to work with routine and manual campaign tasks while maintaining accuracy
• Curiosity and persistence when investigating problems or unfamiliar topics
• Ability to acknowledge what you don’t know, ask thoughtful questions, and learn from feedback
• Openness to productive discussion - you can defend your point of view while remaining open to other perspectives
• Basic proficiency with AI tools for ad copy generation, data analysis, or workflow automation
• English level of B1 or higher

It would be a plus if you have:

• Experience with Demand Gen or Meta Ads
• Experience running campaigns in European markets
• Basic knowledge of GA4 or Looker Studio
• Experience with quiz funnels or a good understanding of how they differ from standard landing-page funnels
• Experience working in a performance marketing agency with lead generation, product, or app-based clients

🧩 Recruitment process for this position:

• Introductory call with the Recruiter - up to 30 minutes. A conversation to discuss your experience, motivation, expectations, and alignment with the role.
• Short test assignment. A practical task designed to evaluate your Google Ads knowledge, analytical thinking, and attention to detail. It should take no more than one hour.
• Deep-dive interview with the User Acquisition Lead. A discussion about your test assignment, practical experience, approach to campaign management, and future potential.
• Final interview. A conversation with the marketing leadership team.
• Reference checks. Before extending a final job offer, we kindly ask for references from your previous places of work. These help us ensure a great mutual match and a smooth start together.
• Offer stage. If everything aligns, we’ll proceed with an offer.

🌍 Why Join Us?

• Huge and meaningful market: mental health across Europe & beyond
• Collaborative, respectful, and human-centered culture
• Tight-knit, mission-driven, ambitious team across 5+ countries
• Unlimited vacations & sick leaves
• Mental health support: sponsored therapy sessions and wellness programs
• Fully remote with hubs in Kyiv, Warsaw, Riga
• Coworking compensation and partially covered expenses during on-site work
• Public holidays according to your country
• Day off on your birthday 🎉
• Language learning support: Up to €150 per month for English / Polish / Romanian language learning
• Learning&Development support: Compensation for learning and professional development (qualification courses, certifications, and other relevant training)
• Physical health support: Up to €300 per quarter for expenses related to your physical health (sport, massage therapy, doctor visits, diagnostic procedures and other health-related services)

If you're passionate about growth, excited by data-driven experimentation, and looking for a place where your work directly fuels impact - this could be your next big move.

💬 Know someone amazing? Send them our way and if we hire them, you’ll receive up to $100 as a referral bonus! Learn more here.

💙 Join us to build smart foundations and help scale a company that truly matters.

📩 To apply: send your CV and a short note about yourself.

About Us

We are a US-founded early stage start-up with an R&D team located in Europe. Our mission is to make learning accessible, relevant, and individualized to keep up with the changing world. We are developing a personalized virtual trainer experience, integrating generative AI and learning engineering to build a VR simulator for immersive hands-on skills training. Our learning engineering approach customizes content and feedback in real-time, directly improving learning outcomes.

We're looking for a Senior Unity engineer to help build the client-side infrastructure of our training platform. This is not just one-off application work. You will build the client foundation that powers VR training simulations today, and additional client targets over time, connecting it to our server according to a defined client-server architecture. The role demands strong application architecture, on-device services, and performance optimization skills.

The Role

This is a hands-on individual contributor role focused on building and evolving key components of our platform's client-side architecture. You will build client infrastructure against a defined server-client architecture in which the server owns authoritative simulation state and logic, connecting the client to the server per spec and reflecting server-owned behavior faithfully on the device.

Key Responsibilities

• Own and drive key components of the Unity VR client architecture so they generalize across training simulations and, over time, additional client targets, rather than serving a single application.
• Build client-side infrastructure that connects to the server according to defined contracts and reflects server-owned state and behavior on the device.
• Co-design the client-server API with the backend, defining the data contracts.
• Develop tooling that supports content creators and other developers working on the platform.
• Use AI coding assistants as part of day-to-day development, and build and maintain the pipelines and validation that make their output reliable.
• Make pragmatic architectural decisions and manage technical priorities effectively in a fast-paced, ambiguous startup environment.

Requirements

• Demonstrated professional Unity and C# experience, ideally 5+ years, with a track record of shipping complex applications or products.
• A portfolio demonstrating experience architecting and refactoring large-scale Unity projects.
• Direct experience building for VR, in particular Meta Quest.
• A track record of building generic, reusable infrastructure and frameworks, not just one-off features.
• Comfort working within a defined client-server architecture and with established API contracts.
• A proactive and adaptable mindset suited for the dynamic and evolving environment of an early-stage startup.
• Excellent communication and collaboration skills in English, with experience working effectively in a remote, culturally diverse team.
• A genuine interest in using technology to enhance learning and education.

Nice To Have

• Experience targeting additional client platforms such as WebGL.
• Experience with data-driven or reactive component systems.

What We Offer

• A high-ownership role with direct influence on product direction, architecture, and user experience, and on company culture.
• A senior opportunity to build a platform from the ground up and contribute to its growth and commercialization.
• The flexibility of a fully remote position, with working hours flexible across European time zones rather than tied to US hours.