Dataforest

We are looking for a Java Developer with experience in real-time communication technologies to join our team. In this role, you will focus on maintaining, optimizing, and extending an established real-time communication platform, working with both backend services and core frontend interactions.

What you'll do:

• Maintain and expand our existing real-time streaming and communication system.
• Design, build, and optimize backend services using Java and Spring Boot.
• Handle frontend logic using Vanilla JavaScript and jQuery for seamless media delivery.
• Work with real-time protocols (WebRTC, WebSockets) to ensure low-latency media streaming and data exchange.

• Troubleshoot, refactor, and improve legacy code to boost performance and stability.

   

You'll be a great fit if you have:

• Strong experience with Java 8+ and Spring Boot 2.4+.
• Solid hands-on experience with real-time communication protocols, specifically WebRTC and WebSockets.
• Good understanding of relational databases (MySQL or MariaDB).
• Proficiency in frontend basics: VanillaJS and jQuery.

• Willingness and ability to work with an established legacy codebase (refactoring, feature addition, and maintenance).

   

Would be a plus:

• Experience with media servers/SFU frameworks like mediasoup.
• Practical experience with Node.js.

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.

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.

Dataforest helps businesses unlock the value of their data through AI, Data Engineering, Advanced Analytics and custom Web Product Development. We build scalable digital solutions for clients worldwide, driven by a culture of results, flexibility and collaboration.

Now we`re looking for a Senior Project Manager to join our team.

    You'll be a great fit if you have:

• PM Experience: 4+ years of project management experience specifically in an IT outsourcing/outstaffing company (must-have).
• English Level: C1 (Advanced) — fluent written and spoken communication skills for daily interaction with international clients.
• Agility & Context-Switching: Proven ability to switch context seamlessly and effectively manage multiple streams or teams simultaneously.
• Web Dev & Methodologies: Hands-on experience managing web development projects; deep knowledge of Agile (Scrum, Kanban) and Waterfall frameworks.
• Planning & Execution: Strong background in project planning, estimation, roadmap creation, and defining key performance metrics (KPIs/OKRs).
• Documentation & Tools: Deep understanding of project documentation standards and solid experience with task-tracking tools (Jira, Confluence, etc.).
   

     What you’ll do:

• Cross-Functional Team & Coordination: Coordinate cross-functional teams (developers, designers, QAs, and other specialists) across multiple autonomous project streams.
• Drive & Enhance AI-Driven SDLC: Take initiative in optimizing and scaling software development processes using modern AI tools and practices.
• Resource & Capacity Management: Take full ownership of team capacity and resource allocation; plan timelines, set objectives, and manage task assignments.
• Define & Track Success Metrics: Establish, monitor, and report on key project health and delivery metrics at every stage.
• Stakeholder Management: Maintain clear, proactive communication with key client stakeholders, internal dev teams.
  
  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.

Dataforest is looking for a Business analyst to join our team. If you're looking for a challenging project and a friendly, supportive team, you've come to the right place to send your resume.

You'll be a great fit if you have:
- 2+ years of experience in system, functional, or business analysis;
- English you can think in. You run the client call, you do not take notes on it;
- AI is already part of your working day, not something on your list to try;
- Practical experience with key business analysis techniques and requirement management tools;
- Understanding of SDLC and agile development processes;
- You would rather draw it than describe it: a wireframe, a flow, a schema, on the screen while everyone is still talking;
- Proficiency in identifying and translating business needs into clearly defined requirements;
- Experience in drafting functional / business / system requirement specifications;
- Experience in working with stakeholders and requirements elicitation;
- Critical thinking and problem-solving skills;
- Ability to decompose complex requirements into manageable tasks;
- Understanding of web development concepts and technologies;
- Excellent interpersonal and communication skills.

Would be a plus:
- SQL and API contracts do not scare you;
- Experience with integration projects.

What you'll do:
- Communicating with stakeholders to identify their needs and clarify requirements;
- Analyzing, validating, grooming and documenting requirements to the projects;
- Visualizing business processes and preparing data models for the software projects;
- Advising stakeholders on the common practices and possible product solutions;
- Performing competitor and market analysis, assisting in developing product ideas;
- Communicating project vision and coordinating development with engineering teams;
- Participating in presales and estimates.

We ensure your growth with:
- Opportunity to work with the high-skilled engineering team on challenging projects;
- Interesting projects with new technologies;
- 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.

We’re expanding our team and looking for a Django/DRF Developer to join Dataforest. If you’re looking for a friendly team, a healthy working environment, and a flexible schedule — you’ve found the right place to send your CV.

You'll be a great fit if you have:

- 3+ years of experience with Django and it's components;

- Experience with RESTful APIs, DRF and related libraries;

- Experience with Celery and async task management;

- Experience with SQL and query optimisation;

- Experience of writing tests;

- Able to work independently and excellent in communicating challenges and issues;
 

Would be a plus:

- Experience with AWS services (EC2, API Gateways, Lambda, SQS);

- Experience with NoSQL databases (Redis, Elasticsearch, etc.);

- Experience of end-to-end implementation for new functionality;

- Experience with payment systems integrations (Stripe, Shopify, Recurly, Paypal, Braintree, etc.);

- Experience with chargeback management tools (Ethoca, RDR, CDRN, etc.);

- Understanding how to handle high load on projects;
 

What you'll do:

- Design, develop and maintain payment gateway and other integrations;

- Design and develop new features and maintain existing functionality.

- Design and develop web applications using Python/Django/Celery.

- Design, develop and maintain RESTful APIs using Django Rest Framework (DRF).

- Write clean and well-structured code that is easy to read and maintain;

- Write and maintain technical documentation.

- Write and maintain unit tests to ensure code quality.

- Optimize and maintain the security, performance, and usability of the applications.

- Collaborate with the PM/Frontend/DevOps/QA and others team members.

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;

- Comfortable, spacious and well-equipped office in the city center;

- Team building activities, corporate events.

Dataforest is looking for a proactive, organized, and detail-oriented Delivery Manager. Your task will include coordinating key functions within a project and ensuring their effective interaction. We are seeking a professional with strong experience in project management and account management who can maintain high project margins and delivery quality.
 

You'll be a great fit if you have:
- 5–7 years of experience as a technical leader or project manager, with a preference for candidates with 10 years of experience.
- Strong leadership and organizational skills with the ability to effectively manage a team.
- Experience working with project budgets and understanding financial metrics.
- Deep understanding of the project delivery process.
- Experience in IT outsourcing
- Understanding in Python, API, and SQL.
- Possession of project management tools.
- Experience in account management and building long-term relationships with clients.
- English language proficiency at the Advanced or Fluent level.

What you'll do:
- Manage and coordinate project teams, including PMs, developers, and resource functions.
- Ensure timely and high-quality delivery of projects.
- Maintain and develop long-term relationships with clients, striving to increase their satisfaction.
- Manage project budgets and ensure the achievement of set financial indicators.
- Oversee all aspects of project execution—from planning to delivery.
- Participate in identifying client needs and generating additional business opportunities.

We ensure your growth with:

- Working in a fast-growing company;
- Great networking opportunities with international clients, challenging tasks;

- 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.

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.

Dataforest is looking for a Data Engineer to join an interesting software development project in the field of Cybersecurity. Our client’s platform offers Identity Insights drives real-time, multi-contextual digital forensics to protect new account opening workflows and expose fake accounts already in a customer database.

You'll be a great fit if you have:

- 3+ years of hands on in data engineering;
- 3+ years of commercial experience with Python;
- Advanced experience with SQL DBs (optimisations, monitoring, etc.);
- Advanced experience with PySpark;
- Solid understanding of ETL principles (architecture/ monitoring/ alerting/search and resolve bottlenecks);
- Familiar with AWS infrastructure (boto3, S3 buckets, etc);
- Experience working with large volumes of data;
- Understanding the principles of medallion architecture.

Would be a plus:

- Cassandra/Scylla
- PostgreSQL
- Pandas
- Experience with Kafka and Redis

What you'll do:

- Maintain data processing architecture using Python and PySpark that interacts with ScyllaDB & PostgreSQL.
- Work with Databricks infrastructure to ensure reliability, scalability, and cost efficiency.
- Proactively identify bottlenecks and suggest technical improvements.

We ensure your growth with:

- Working in a fast-growing company;
- Great networking opportunities with international clients, challenging tasks;
- 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.

Are you a Data Scientist with a love of LLMs, generative AI?

We are looking for a passionate Data Scientist to implement AI solutions aimed at achieving business goals.

This role offers the opportunity to work on cutting-edge AI adoption projects that helps to improve current business processes.
 

     You'll be a great fit if you have:

•  Strong Python Experience (2 year +);
• Experience with LLM , Diffusion models;
• Knowledge of Prompt engineering;
• Experience with Gen AI-related technologies such as LangChain and RAG;
• Experience with Neural Networks (Optional) ;
• Experience with NLP , Predictive analytics and Machine learning;
• Experience with Pandas;
• Experience with SQL, including experience with large datasets;
• Strong experience in statistics;

• Bachelor's degree in Computer Science or a related field.
   

  What you'll do:

• Develop AI agents that utilize LLM, RAG and langchain approach;
• Implement LLM and Diffusion models to boost business productivity;
• Utilize LLM (LLM Vision) to improve object detection, text classification and extraction;
• Create forecasting, recommendation, and classification models;
• Transform business challenges to AI applications.
   

     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.

We are looking for a Python Developer (microservices) to join the Dataforest team. If you are looking for 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;
• Experience with SQL and query optimisation;
• Experience with integration of 3rd party services;
• Strong understanding of client-server model, REST API approach, authorization/authentication principles;
• Strong understanding of asynchronous/multithread/multiprocess programming;

• Upper- Intermediate level of English.

   

    Would be a plus:

• Experience with Redis and Lua scripts;
• Experience with AWS services (Lambda, Step Functions, API Gateway, SQS, Fargate);
• Experience with Django REST API;
• Experience with payment systems integrations (Stripe, Shopify, Recurly, PayPal, Braintree, etc.);

• Experience with Celery and async task management.

   

  What you'll do:

• Developing server applications (APIs). Within these applications, developers need to describe core logic and integrations with third-party services.
• Writing scripts similar to DAGs in Airflow or AWS Lambdas. These scripts should process information using Pandas or implement some simple business logic.
• Developing applications with a distributed architecture (microservices).

• Developing client applications for data retrieval. These data will later be processed by developers from the DS and DE departments.

   

  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.

Ми працюємо в напрямках Data Science, Data Engineering та Data Transformation: будуємо data-архітектуру, ETL-пайплайни, інтеграції даних, автоматизацію звітності, BI-рішення та аналітичні системи для середніх і великих компаній.
Шукаємо Lead Generator’а, який вміє не просто знаходити контакти та запускати outreach, а самостійно будувати й оптимізувати lead generation кампанії - від формування ICP та збору даних до персоналізації, автоматизації, кваліфікації ліда та передачі його в Sales.

Основні задачі: 

• Пошук та відбір цільових компаній і decision-makers відповідно до ICP: FinTech, Healthcare, Retail, Manufacturing, Logistics.
• Робота з LinkedIn Sales Navigator для пошуку, сегментації та формування цільових аудиторій.
• Побудова та запуск lead generation кампаній через Clay, Apify та LinkedIn Helper.
• Використання Claude API для автоматизації research, enrichment та персоналізації outreach.
• Побудова логіки кампаній: сегментація → enrichment → personalization → first touch → follow-ups → qualification.
• Налаштування інтеграцій між lead generation інструментами та іншими системами.
• Робота з webhooks - обов'язкова навичка.
• Створення персоналізованих First Touch / Follow-up sequences для різних ICP та персон.
• Ведення письмової комунікації з потенційними клієнтами з метою виявлення потреб, pain points та потенційного інтересу до наших послуг.
• Прогрів і кваліфікація лідів до статусу Interested / Qualified / Ready for Call та передача в Sales.
• Формування та постійне оновлення баз ICP: компанії, decision-makers, сегменти, тригери та інші дані для персоналізації.
• Аналіз результатів кампаній та оптимізація підходів на основі response rate, positive reply rate, qualified leads та booked meetings.
• Щоденна / щотижнева / щомісячна звітність за ключовими показниками.

• За потреби - створення коротких персоналізованих Loom-відео для outreach.

   

Що очікуємо від тебе:
Досвід у Lead Generation / SDR / Outreach від 6 місяців.
Практичний досвід роботи з: Clay, Apify, LinkedIn Sales Navigator, LinkedIn Helper, Claude API, Webhooks - обов'язково

Важливо не просто знати інтерфейс інструментів, а розуміти, як об'єднати їх у єдиний lead generation workflow.
Наприклад:
Sales Navigator → Apify → Clay → enrichment → Claude API personalization → LinkedIn campaign → qualification → Sales
Очікуємо вміння самостійно побудувати кампанію з нуля: визначити сегмент, зібрати та очистити дані, налаштувати enrichment, персоналізацію та sequence, запустити кампанію, проаналізувати результати та запропонувати зміни.
Базове розуміння термінів:

• Data Engineering
• Data Science
• ETL / Data Pipelines
• Data Integration
• Data Migration
• BI / Dashboards
• Data Automation

English - Upper-Intermediate+, включно з упевненою письмовою комунікацією.

Для нас особливо важливі:
Орієнтованість на результат.
Ми оцінюємо не кількість виконаних механічних дій, а кількість релевантних діалогів, кваліфікованих лідів та зустрічей.
Аналітичні навички.
Вміння працювати з показниками кампаній, знаходити причини низької конверсії, тестувати гіпотези та покращувати результати.
Сильна письмова комунікація.
Вміння не тільки відправити sequence, а й продовжити живий діалог із потенційним клієнтом, поставити правильні запитання, виявити його потребу та зрозуміти, чи є потенціал для подальшої розмови із Sales.
Технічність.
Розуміння automation logic, API та webhooks на рівні, достатньому для самостійної побудови lead generation workflows.
Самоорганізація та відповідальність.
Здатність самостійно вести кампанії, контролювати KPI та своєчасно реагувати на результати.
KPI
Орієнтир - 40-120 нових релевантних контактів із запущеними персоналізованими sequences на тиждень залежно від складності сегмента та рівня персоналізації.
Також оцінюємо:

• response rate;
• positive reply rate;
• кількість qualified leads;
• кількість booked meetings;
• конверсію між етапами кампанії;
• якість ICP та контактної бази.
  
   

Ми пропонуємо:

• Повністю віддалену роботу.
• Гнучкий графік - для нас важливий результат.
• Фіксовану ставку в USD + бонуси за KPI.
• Роботу з досвідченою командою Data Engineers та Data Strategists.
• Наставництво та можливість розвиватися в технічному B2B lead generation.
• Можливість вирости до SDR / Sales Manager.
• Оплачувану відпустку, державні вихідні та лікарняні.
• Корпоративи, тімбілдинги, тематичні заходи та інші командні активності.

We are looking for an experienced and proactive Senior Project Manager to join our team at Dataforest and lead a long-term, high-scale FinTech project.

About the Project:
Our client is building a powerful B2B SaaS platform designed to revolutionize chargeback management, featuring enterprise-grade API integrations (Ethoca, Verifi), seamless payment processor connections (Stripe, Shopify, Braintree), and real-time dispute alerts. We are actively developing and scaling multiple product streams, including Business Health, Dispute Management, and others.

    You'll be a great fit if you have:

• 5+ years of PM experience, specifically in an IT outsourcing company (must-have).
• Domain expertise: Mandatory experience in FinTech / Payments.
• English level: C1 (Advanced) — strong written and spoken communication skills.
• Skills: Excellent ability to context-switch between dynamic tasks and effectively manage multiple teams/streams.
• Web Dev & Methodology: Proven experience managing web development projects; strong expertise in Agile/Scrum, Kanban, and Waterfall methodologies.
• Planning & Execution: Strong knowledge of project planning, estimation, and defining success metrics.
• Track record of managing teams of 20+ members.

• Documentation & Tools: Deep understanding of project documentation and hands-on experience with task tracking systems (Jira, Confluence, etc.).
   

  Will be plus:

• Domain expertise: Mandatory experience in FinTech / Payments.
   

     What you’ll do:

• Lead a large-scale project: Coordinate up to 30 team members structured into up to 10 autonomous sub-teams.
• Drive & improve AI-driven SDLC: Manage, optimize, and take full initiative in improving project delivery processes using modern AI tools and practices.
• Resource & Capacity Management: Plan and document project objectives, timelines, tasks, and work assignments while taking full ownership of team capacity and resource allocation.
• Define and track project success metrics.
• Set tasks for team members (developers, designers, QAs, and other specialists).
• Stakeholder Management: Maintain full, effective interaction with the development team, key clients, and external 3rd-party providers/integrations (e.g., Visa, Mastercard, payment gateways, etc.).
  
  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.