Jobs at Djinni

The Role 

QA General plays a crucial role in ensuring the quality and reliability of our software products across multiple platforms, and is responsible for designing and executing tests, identifying issues. He ensures our applications meet high-quality standards before release. 

Core Responsibilities 

Manual & functional testing 

• Conduct comprehensive manual testing of web and mobile (Android and iOS) applications on Windows, macOS, Linux, iOS, and Android (devices, emulators, and simulators) 
• Perform UI/UX testing to ensure compliance with design specifications and accessibility standards (WCAG) 
• Analyze and identify defects across all parts of the system (desktop, server, mobile) 
• Execute regression and functional testing for new and existing features 
• Design and execute test cases using appropriate test design techniques 
• Use QA tools such as Postman, Swagger, MockServer, emulators, and simulators 

Test Automation 

• Design, develop, and maintain automated tests primarily for web applications 
• Use automation tools and technologies such as: 
• Web (required): Playwright and/or Cypress 
• Languages: JavaScript (TypeScript is a plus) 
• IDEs: IntelliJ IDEA and/or VS Code 
• Contribute to mobile test automation where needed (basic scripts, support of existing suites, or gradual expansion of coverage) 
• Integrate web automated tests into the development and release workflow where applicable 

Processes & Collaboration 

• Estimate testing efforts and report test results clearly and on time 
• Maintain effective communication with developers, designers, product owners, and support teams 
• Engage with beta testers and contribute to bug lifecycle management 
• Contribute to improving testing strategies and QA processes 

Requirements 

QA fundamentals 

• Strong understanding of QA theory, methodologies, and the software development lifecycle (SDLC) 
• Proven experience testing web and mobile (Android and iOS) applications 
• Experience testing APIs and HTTP requests 
• Experience with regression, functional, and exploratory testing 
• Analytical mindset and strong attention to detail 

Tools & Technologies 

• Strong knowledge of Postman 
• Knowledge of JIRA, Confluence, and TestRail 
• Strong understanding of client-server architecture 
• SQL knowledge and practical experience with databases (MySQL, PostgreSQL, and/or MongoDB) 
• Familiarity with Figma, Chrome DevTools, and Grafana 

Automation – WEB (required) 

• Hands-on experience with web test automation using Playwright and/or Cypress 
• Proficiency in JavaScript for writing and maintaining automated tests 
• Ability to integrate and maintain automated tests in the team’s workflow 

Accessibility & Communication 

• Experience with accessibility testing and WCAG guidelines 
• English fluency required; additional languages are a plus  

We are looking for an experienced QA Automation Engineer (Senior/Lead) to join our team and maintain and extend test automation. This is a key role where you will define the automation strategy, design and implement the framework, integrate it into CI/CD, and ensure long-term scalability of automated testing in the project.
 

Responsibilities

• Define and implement the overall automation strategy for the project.
• Design and maintain a test automation framework from scratch.
• Automate regression and functional test cases.
• Integrate automated tests into CI/CD pipelines.
• Actively use AI tools to generate, optimize, and accelerate test automation.

• Collaborate closely with developers, QA, and product teams to identify testing priorities.

   

Requirements

• 5+ years of experience in QA, with a strong focus on test automation.
• Proven experience in building automation frameworks from scratch.
• Solid programming skills in JavaScript, Java or similar languages.
• Strong knowledge of automation tools and frameworks (Playwright, or similar).
• Experience with CI/CD tools (Jenkins, Github actions, etc.).
• Good understanding of the software development lifecycle and QA processes.
• Strong communication skills and ability to take ownership of the QA automation domain.

• Hands-on experience in exploring and implementing AI-driven automation solutions

   

Nice to Have

• Experience working with legacy environments or older frameworks.
• Knowledge of API and performance testing tools (Postman, JMeter, etc.).

We Offer

• Opportunity to lead the automation initiative from day one.
• Long-term project with room for professional growth.
• Full flexibility in choosing technologies (PHP, Java, JavaScript, and others) and the active use of AI in daily work.

We are looking for a Middle Python Developer with a strong focus on backend development, high-performance APIs, and 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.

     Skills requirements:

• 3+ years of commercial experience with Python;
• Strong production experience with FastAPI (async programming, dependency injection, Pydantic);
• Deep understanding and hands-on experience with GraphQL (schema design, resolvers optimization, federation is a plus) along with traditional REST API approach;
• Strong understanding of asynchronous programming (asyncio, multithreading/multiprocessing);
• Experience with AWS services;
• Experience with SQL databases, ORMs (e.g., SQLAlchemy/Tortoise), and query optimization;
• Solid understanding of client-server models, microservices architecture, and authorization/authentication principles (OAuth2, JWT).
   

     Optional skills (as a plus):

• Experience with Strawberry or Ariadne (Python GraphQL libraries);
• Experience with Redis and Lua scripts;
• Experience with Celery or other async task managers/message brokers;
• Experience with third party integrations (payments, iGaming platforms, CRM and similar).
   

     Key responsibilities:

• Designing and developing high-performance Backend APIs using FastAPI and GraphQL;
• Building and maintaining applications with a distributed microservices architecture;
• Writing efficient asynchronous logic and integrating third-party services;
• Developing data-retrieval applications and specialized scripts (similar to DAGs in Airflow or AWS Lambdas) to process information for further DS and DE workflows;

• Optimizing database queries and API performance to ensure low latency.
   

  We offer:

• 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.

Project overview

This project focuses on building and enhancing a mature cyber defense capability that combines advanced incident response with security engineering and automation. The goal is to improve detection accuracy, accelerate response times, and strengthen protection across cloud and on premise systems.

Position overview

This role serves as the last escalation point for Incident Management & Incident Response within the SOC team. The engineer is engaged when L2 analysts face technically complex incidents — including malware analysis, digital forensics, high-impact events, and incidents with significant business or client exposure. In addition to L3 analytical work, the role covers engineering responsibilities: SIEM fine-tuning, SOAR automation, data source onboarding, and quality control of incident tickets. The engineer also mentors junior analysts and drives team knowledge-sharing.

Responsibilities

• Act as the final escalation point for complex security incidents and lead end to end investigations
• Perform malware triage and behavioral analysis using both static and dynamic techniques
• Conduct digital forensics activities including evidence collection, artifact analysis, and timeline reconstruction
• Develop and tune detection rules in Microsoft Sentinel and improve analytics and correlation logic
• Write and optimize KQL queries to enhance detection quality and reduce false positives
• Configure and maintain data connectors, parsers, and normalization pipelines
• Design and improve SOAR playbooks to automate triage and response workflows
• Work with FortiAnalyzer to manage log collection, correlation rules, and alerting pipelines
• Collaborate with international teams to ensure consistent security monitoring practices
• Review incident tickets and ensure quality and completeness of investigations
• Mentor L1 and L2 analysts and contribute to knowledge sharing initiatives
• Break down engineering tasks and support junior team members in their execution

Requirements

• 3 to 5 years of experience in a SOC environment at L2 or Security Engineer level
• Experience acting as an escalation point for incident response and managing complex investigations end to end
• Hands on experience with malware analysis including identification of indicators of compromise and behavior analysis
• Experience with digital forensics fundamentals including evidence handling and timeline reconstruction
• Practical experience with Microsoft Sentinel including rule creation, tuning, and data onboarding
• Strong KQL skills with the ability to build and optimize analytical queries
• Experience with Microsoft Defender XDR products and advanced hunting capabilities
• Familiarity with Microsoft Azure security services including Entra ID and monitoring tools
• Experience working with AWS security services such as CloudTrail, GuardDuty, and Security Hub
• Experience with Fortinet FortiAnalyzer for log management and correlation
• Understanding of networking, operating systems, and enterprise security principles
• Experience with SOAR platforms and automation of incident response workflows
• Experience mentoring team members and supporting knowledge development

Nice to have

• Experience with AI driven SOC workflows and automation using language models
• Familiarity with Microsoft Copilot Studio or low code automation tools such as Logic Apps
• Experience integrating threat intelligence platforms and enrichment pipelines into SOC processes

POSITION DESCRIPTION: 

We are seeking a skilled DevOps Engineer to join our team. 

In this role, you will design and implement innovative cloud service offerings, streamline development and deployment processes, and enhance system reliability and security. Your main tasks will include automating infrastructure, optimizing performance, and ensuring scalability for millions of users. 

You will have the opportunity to work with cutting-edge technologies and collaborate with a team of experts across different domains. This position offers room for professional growth, exposure to complex cloud systems, and the chance to contribute to innovative projects that impact multiple industries. 

MINIMUM EXPERIENCE: 

3+ years of experience in DevOps / SRE or a related field 

EDUCATION:
BS or MS in Math, Computer Science, Engineering 

REQUIREMENTS: 

• Proven experience working with AWS (Amazon Web Services) 
• Expertise with container-based technologies, e.g., Docker, Kubernetes 
• Expertise with infrastructure as code, configuration management tools, and cloud automation, e.g., Terraform, CloudFormation
• Good understanding of networking and security concepts 
• Experience in defining and building CI/CD processes and working with common CI/CD tools 
• Experience in Linux Systems Administration, scripting, and troubleshooting in a production environment 
• Excellent problem-solving skills, along with the ability to work independently 

NICE TO HAVE: 

• Relevant certifications (e.g., AWS Certified DevOps Engineer, Kubernetes certifications) 
• Experience with microservices, serverless architecture 
• Knowledge of monitoring and logging tools (Prometheus, ELK Stack, Grafana) 
• Knowledge in Jenkins, Groovy, CDK 
• Experience with scripting using languages as Python, Go , PowerShell, etc
• A passion for everything performance, observability, availability, scalability, and security with experience owning and delivering projects using Agile methodologies 

DUTIES: 

• Design and implement new service offerings on top of a strong cloud foundation 
• Support development teams in leveraging our larger machine learning operations (MLOps) 
• Drive the design, implementation, and management for expanding observability infrastructure, keeping up to date with new technologies 
• Lead sustainable incident response, blameless postmortems, and production improvements that result in direct business opportunities 
• Collaborate with software development and the infrastructure team to design, implement, and maintain multiple business offerings 
• Automate deployment, scaling, and management of infrastructure using modern DevOps tools and practices
• Monitor and optimize system performance, troubleshoot issues, and implement solutions. 
• Manage and secure cloud-based environments (AWS) 
• Implement and maintain configuration management and infrastructure as code (IaC) using Terraform
• Collaborate in designing and implementing security best practices throughout the development and deployment pipelines 
• Take part in periodical On-Call responsibilities, alongside your fellow team members 
• Define and document best practices across all pillars of DevOps/SRE 

COMPENSATION & BENEFITS: 

• Competitive salary 
• Professional and friendly team 
• Flexible work schedule 
• Hybrid work mood 
• Paid vacation, sick days, and more 

Our client is looking for an experienced Mobile Quality Engineer who combines strong QA fundamentals, hands-on mobile automation, and AI-assisted engineering practices to deliver high-quality iOS and Android applications.

This role is ideal for someone who can combine mobile automation, manual testing, and AI-assisted workflows to improve product quality, release confidence, and team productivity.
This is an AI-first QA role focused on modern mobile automation, agentic workflows, shift-left testing practices, and hands-on validation of iOS and Android applications.
 

Responsibilities:

• Build, maintain, and execute automated tests for native and hybrid iOS and Android applications.
• Perform manual, exploratory, regression, and compatibility testing across mobile devices, OS versions, and screen sizes.
• Develop scalable automation using Appium and WebdriverIO for mobile applications and Playwright for web-based applications.
• Use AI-assisted tools such as Codex, Claude, GitHub Copilot, or similar platforms to accelerate automation, debugging, refactoring, and test coverage improvements.
• Build reusable automation assets, prompts, and agentic workflows to support test creation, maintenance, and release validation.
• Own quality and release readiness through automated testing, risk identification, defect tracking, and continuous validation.
• Partner closely with engineering, product, design, and QA teams to embed quality early in the development lifecycle.
• Create and maintain test cases, test plans, automation coverage, and clear documentation using tools such as Xray or TestRail.
• Participate in Agile ceremonies, including refinement, sprint planning, stand-ups, reviews, and retrospectives.
   

Requirements:

• 5+ years of QA experience, including hands-on testing of iOS and Android applications.
• Strong experience with mobile automation and modern testing practices.
• Practical experience with Appium and WebdriverIO.
• Hands-on experience automating web-based applications with Playwright.
• Strong manual testing skills, including test design, exploratory testing, regression testing, and defect reporting.
• Working knowledge of JavaScript/TypeScript for test automation.
• Experience using AI-assisted development or QA tools such as Codex, Claude, GitHub Copilot, or similar.
• Ability to build or improve reusable automation skills, prompts, and agentic workflows.
• Strong understanding of mobile applications, web applications, APIs, test coverage, and release validation.
• Experience with Jira, Confluence, Bitbucket, Xray/TestRail, BrowserStack, Charles Proxy, and CI/CD processes is a plus.
• Strong ownership, problem-solving skills, attention to detail, and ability to work in a fast-paced Agile environment.
• Upper-intermediate or higher English communication skills.
• Availability to work until at least 12:00 PM ET (7 pm or 8 pm Kyiv time), Monday through Friday.

The role focuses on improving engineering efficiency, infrastructure reliability, and security posture across a cloud-native microservices ecosystem.

Key Responsibilities:
- Improve and standardize CI/CD pipelines across teams
- Optimize build, test, and deployment processes
- Enhance Infrastructure as Code practices
- Improve observability, reliability, and scalability of the platform
- Drive security improvements across infrastructure and delivery pipelines
- Implement DevSecOps best practices
- Collaborate with product and engineering teams to improve operational processes
- Participate in architectural decision-making and continuous platform evolution
- Contribute to pre-sales and technical consulting activities when required

• Mandatory Skills Description:

  Core Technical Competencies:
  • Hands-on experience with Microsoft Azure
  • Strong Kubernetes experience (production environments)
  • CI/CD pipeline design and optimization
  • Infrastructure as Code:
     o Terraform or Azure Bicep
  • Containers:
     o Docker or Podman
  • Scripting:
     o Python and/or Bash
     o PowerShell
  • Experience with security best practices in cloud-native environments
  
  Leadership & Communication:
  • Experience leading or mentoring engineers
  • Strong client-facing communication skills
  • Ability to drive cross-team improvements

• Nice-to-Have Skills Description:

  • DevSecOps tooling (SAST, DAST, dependency scanning, container scanning)
  • Experience improving SDLC governance
  • CI/CD platforms:
     o GitLab CI
     o TeamCity
     o Azure DevOps
     o GitHub Actions
     o ArgoCD or Flux
  • Configuration Management:
     o Salt
     o Puppet
     o Chef
  • Programming:
     o Python
     o Golang

About the Role:

Limestone Digital is looking for a Senior Account Manager to own long-term relationships with international clients and drive account growth. You will act as a strategic partner for clients, understanding business goals, shaping delivery approaches together with delivery leads, and ensuring consistent value delivery. 

We need a leader who can take the wheel, build the strategy, and execute it autonomously. This role combines client consulting, commercial ownership, and delivery leadership, with a strong focus on trust-based, long-term partnerships.

What we are looking for:

• 7+ years of strong experience in account management, consulting, or client services leadership in digital/software services
• A valid US visa is mandatory for onsite client meetings and business trips
• Background in both account management and project/delivery management
• Demonstrated ability to operate with high autonomy in a dynamic, unstructured environment, building processes from scratch
• Proven ability to manage complex client relationships and distributed delivery teams
• Demonstrated success in growing existing accounts (upsell/cross-sell, renewals)
• Strong commercial acumen: comfortable owning a margin and an account economics
• Mandatory experience running Quarterly Business Reviews and strategic planning sessions independently
• Ability to manage expectations, drive escalations when needed, and prevent overpromising
• Excellent negotiation, stakeholder management, and presentation skills
• Excellent spoken and written English (full professional proficiency)
• Experience working in international, multicultural environments
• Availability for business trips to Prague, approximately once every two months
   

Nice to have:

• Experience creating templates/playbooks for client engagement, escalation, and account growth
   

What you will do:

Client management & growth:

• Develop a deep understanding of each client’s business, priorities, budget cycles, and decision-making structure
• Build and maintain senior-level stakeholder relationships
• Maintain structured communication through regular calls, business reviews, and written follow-ups
• Independently design and run Quarterly Business Reviews and strategic sessions
• Identify and drive upsell/cross-sell opportunities within existing accounts by aligning our services with the client's long-term business roadmap
• Monitor satisfaction and gather both structured and informal feedback.
   

Delivery partnership:

• Maintain a clear, informed view of all active projects within your accounts
• Ensure transparent communication between clients and delivery teams
• Represent the client’s perspective internally and Limestone Digital’s perspective externally
• Identify risks early and coordinate resolutions with delivery leadership, Commercial & operational ownership
• Own account economics: revenue, margin, forecasting, invoicing, and payment collection (with Finance)
• Draft/review/manage client documentation: MSAs, SOWs, change requests, proposals
• Coordinate with client procurement teams on purchase orders and commercial processes
• Ensure contract-to-delivery clarity and operational professionalism across Engagements
   

About the project:

Limestone Digital is an outsourced software development company with headquarters in Prague, Czech Republic. We deliver and maintain desktop and web-based applications and systems for a wide variety of SMEs & startups across industries such as FinTech, Logistics, Healthcare, Insurance, Sports, and E-gaming. Limestone Digital is a team of extraordinary Developers, UI/UX Designers, QA Engineers, and Project Managers who help our clients by building and operating top-notch engineering solutions in our R&D facilities located in Eastern Europe. Our ideal candidate will act as the point of contact for clients, prospects, Business Unit Heads, and LD leadership. Account Manager will create business strategies, architect and oversee delivery approaches, build successful relationships, and drive business results.

📍 Remote 
🕐 Full-time
 

We are currently looking for an experienced International Accountant / Group Accountant to strengthen our Finance Team and take ownership of accounting operations across our international group structure. Our entities operate in the United Kingdom, Estonia, Hong Kong, Cyprus, and the UAE (Dubai Mainland), making this role ideal for someone who enjoys working in a dynamic international environment and managing multi-jurisdictional accounting processes.

Your Mission

The key objective of this role is to support the transition of accounting operations from outsourced providers to an efficient in-house finance function, ensuring accuracy, compliance, and high-quality financial reporting across all group companies.
 

Key Responsibilities

Accounting Operations

• Manage full-cycle accounting for multiple international entities.
• Maintain accurate bookkeeping records and accounting documentation.
• Process multi-currency transactions and perform bank reconciliations.
• Manage Accounts Payable (AP) and Accounts Receivable (AR).
• Conduct intercompany reconciliations and ensure consistency across group entities.

Financial Reporting

• Prepare monthly, quarterly, and annual financial statements in accordance with IFRS.
• Prepare Balance Sheet, Profit & Loss, and Cash Flow reports.
• Support management reporting and financial analysis.

Tax & Regulatory Compliance

• Prepare and submit statutory financial and tax reports where direct filing is permitted.
• Ensure compliance with local accounting and tax regulations.
• Monitor reporting deadlines and regulatory requirements across jurisdictions.

Audit Support

• Prepare audit working papers and supporting documentation.
• Coordinate communication with external auditors and service providers.
• Support annual audit processes and year-end closing activities.

Process Development

• Participate in building and improving internal accounting processes.
• Support the transition from outsourced accounting to an in-house finance model.
• Identify opportunities for automation and process optimization.
   

Requirements

Professional Experience

• 3–5+ years of experience as:
  • International Accountant;
  • Group Accountant;
  • Senior Accountant;
  • Auditor within a Big 4 firm or international accounting/advisory company.
• Experience working with multiple legal entities and international structures.
   

Education & Qualifications

• Bachelor's degree in Accounting, Finance, Audit, or a related field.
• ACCA, CPA, or progress toward obtaining a professional qualification will be a significant advantage.

Technical Knowledge

• Strong practical knowledge of IFRS.
• Understanding of financial consolidation principles.
• Experience with international accounting and compliance requirements.
• Ability to independently manage reporting and audit preparation processes.

Systems & Tools

• Experience with cloud-based accounting systems and ERP platforms.
• Experience with Odoo is highly desirable.
• Familiarity with electronic government reporting and tax portals.

Language Skills

• English level B2–C1 (Upper-Intermediate to Advanced).
• Ability to communicate effectively with international stakeholders, auditors, and service providers.
   

What We Offer

✨ Opportunity to work with an international group of companies across multiple jurisdictions.
✨ High level of autonomy and ownership.
✨ Exposure to international accounting, taxation, and IFRS reporting.
✨ Professional growth and development opportunities.
✨ Remote work format.
✨ Competitive compensation package.
 

If you are looking for a role where you can make a real impact, drive accounting excellence, and work in a truly international environment, we'd love to hear from you. 🚀
 

Join Office8 and become part of a team that supports global business growth.

Come build something true with us.

At True Sea Moss, we’re on a mission to bring real, wild nourishment back into people’s lives. Our products are rooted in nature, clean by design, and crafted with care. As we grow, we’re not just scaling orders — we’re deepening relationships.

That’s where you come in.

We’re looking for a Head of Customer Support who doesn’t just manage tickets — you design systems that reflect care, calm, and clarity at every customer touchpoint. You know that behind every inquiry is a human being, and behind every world-class brand is a world-class support operation.

Now – who are we looking for?

You’re a people-first, process-driven leader. You can zoom out to design scalable systems and zoom in to resolve a delicate issue with nuance and empathy. You know how to build teams, train for tone, and turn everyday conversations into brand loyalty.

What You’ll Be Doing

• Lead and evolve our customer support strategy, systems, and team as we scale across markets
• Own and optimize support operations, including SLAs, workflows, ticket routing, and knowledge management
• Design and implement feedback loops that turn customer insight into product, policy, and experience improvements
• Track and report on core CX metrics (CSAT, response time, resolution rate, etc.) to inform team performance and company decisions
• Oversee our support platforms and ensure tool usage is efficient, integrated, and evolving
• Build and nurture a high-performing team — from hiring to training to coaching
• Partner with Marketing, Product, and Ops to ensure seamless communication and aligned customer touchpoints
• Lead crisis response, escalations, and sensitive communications with clarity and care

What You Bring

• Proven experience leading customer support or CX teams in a high-growth DTC or e-commerce environment
• Strong command of support platforms (e.g., Zendesk, Shopify, Klaviyo) and automation tools
• Operational mindset: you love process design, SOPs, and scalable systems
• Deep understanding of CX metrics and the ability to use data to drive continuous improvement
• Experience managing remote teams across multiple time zones
• A calm, proactive, solutions-first approach to customer challenges

Nice-to-Haves

• Familiarity with U.S. consumer expectations and CX best practices
• Experience with health & wellness, lifestyle, or mission-driven brands
• Background in customer lifecycle, retention, or post-purchase engagement strategy

Why Work With Us

We don’t treat customer support as an afterthought — it’s central to our brand and business.

You’ll help shape how we show up in the world: consistently, compassionately, and with conviction.

We listen. We care. We build things that last.

Here’s How We Back Our Words with Care

• Welcome pack and custom True Sea Moss merch to start strong
• Sports reimbursement to support your mental and physical well-being
• Additional vacation days beyond standard holidays
• Coaching & career development sessions to fuel your growth
• Corporate English lessons to help you sharpen communication
• WHOOP membership to support your health and recovery
• Coworking membership for flexibility and focus
• Sabbatical options after long-term contributions
• Travel and project grants to support personal growth and creativity

So — does this sound like your kind of work?

If you believe great customer support is about connection, consistency, and care — and you're ready to build something that truly matters — we’d love to hear from you.

Let’s make things worth remembering.

Looking for a Data Engineer 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.

Skills requirements:
• 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;
• Knowledge of data algorithms and data structures is a MUST;
• Working with high volume tables 10m+.

Optional skills (as a plus):
• Experience with Spark (pyspark);
• Experience with Airflow;
• Experience with Kafka;
• Experience in statistics;
• Knowledge of DS and Machine learning algorithms..

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

We offer:

• 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 Scientist 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.

    Required Qualifications

• 2+ years of experience working with large-scale, complex datasets.
• Experience with imbalanced data.
• High proficiency in Python for data analysis, feature engineering and modeling.
• Expertise in exploratory data analysis and preparing clean, structured datasets for model development.
• Hands-on experience with AI/ML techniques:
• Supervised (eg. gradient boosting, decision trees, etc.)
• Unsupervised (eg. anomaly detection, clustering, etc.)
• Familiarity with basic statistical concepts and model evaluation metrics (eg. precision, recall, ROC-AUC).
• Upper-intermediate (B2) or higher level of English.
  
  Nice to Have
• Hands-on experience in the fraud/risk domain.
• Experience with Databricks (including Pyspark) for data processing, experimentation, and model development.
• Experience in MLflow library for experiment tracking and model lifecycle management.
• Experience working with diverse data sources (e.g., behavioral, device, or transactional data) and deriving meaningful features.
• Experience assessing data quality and validating new data sources in production environments.

     Key Responsibilities

• Analyze large-scale transaction datasets to identify fraud patterns and risk signals.
• Develop and validate ML models for risk scoring and fraud detection/classification.
• Support deployment of models into production environments by collaborating with the development team.
• Monitor model performance, conduct regular evaluations, analyze the results.
• Perform feature engineering to continuously improve model performance.
• Collaborate with the client on R&D efforts, including exploratory data analysis, feature development, and testing new approaches.

     We offer

• 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 and corporate events.

We are looking for a visionary and hands-on Senior Backend Developer / Tech Lead to drive the technical evolution of our high-performance microservices ecosystem at Dataforest. If you are passionate about building scalable, high-load systems, defining architectural patterns, and guiding a talented engineering team in a healthy, flexible working environment — we want you on board!

    Technical Requirements:

• 4+ years of commercial experience in backend development using Python;
• Proven track record of designing and scaling high-load (Highload) applications and distributed systems;
• Deep expertise in FastAPI (advanced async patterns, dependency injection, architecture optimization, Pydantic v2);
• Extensive hands-on experience with GraphQL in production (advanced schema design, federation/subgraphs, N+1 problem resolution, resolver optimization);
• Strong mastery of asynchronous programming in Python (asyncio, advanced concurrency models);
• Production experience with AWS infrastructure;
• Advanced knowledge of SQL  databases, mastering query optimization, indexing strategies, and database sharding/replication (e.g., PostgreSQL + SQLAlchemy/Tortoise);
• Deep understanding of microservices patterns (Event-Driven Architecture, CQRS, Saga pattern, API Gateways, Service Mesh).
   

     Optional skills (as a plus):

• Experience with specialized GraphQL tools like Strawberry, Ariadne, or Apollo Router/Federation;
• Advanced usage of Redis (caching strategies, pub/sub);
• Experience with message brokers and task queues (Kafka, RabbitMQ, Celery) under heavy loads.
• Experience with third party integrations (payments, iGaming platforms, CRM and similar).
   

    Key Responsibilities:

• Architecture & Leadership: Design, build, and maintain scalable backend architectures using FastAPI and GraphQL; establish best practices, code standards, and technical roadmaps;
• High-Load Optimization: Solve complex scalability challenges, optimize system performance, eliminate bottlenecks, and ensure low-latency data delivery;
• Microservices & Infrastructure: Own the integration and evolution of a highly distributed microservices mesh built on AWS;
• Mentorship & Code Quality: Lead technical discussions, conduct rigorous code reviews, and mentor Middle/Junior developers, fostering a culture of engineering excellence;

• Cross-functional Collaboration: Act as a key technical point of contact, collaborating with Data Science, Data Engineering, and product stakeholders to design robust data-retrieval and processing APIs.
   

  We offer:

• 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

- Confident PC user (Windows)
- Basic English
- Extensive internet research skills
- Creative problem-solving and analysis skills
- Team player with good interpersonal and solution-oriented attitude
- Readiness to work in shifts (mandatory)
- Stress-resistance
- Ice Hockey knowledge is very beneficial, actual hockey playing skills are not required
- Video gaming experience also useful

Job Responsibilities

- Analyze ice-hockey games and record key events as they occur such as successful pass, penetration of offensive zone, faceoff win, etc. (40+ total event types)
- Check the quality of content and do an analysis of quality data
- Work on various data tools and generate information by doing online research
- Provide inputs/content with high quality
- Ability to identify and verify source authenticity
- Solve complex problems in time-bound and effective manner
- Ability to analyze data by doing secondary research

Department/Project Description

Our client is leading supplier of sports analytics to its clients. Using cutting edge Computer Vision and AI/ML technologies, the company provides outstanding real-time sports performance analysis. As an analyst you will be responsible for providing quality statistics for ice hockey games using client's proprietory tools.

About Us 

ChatRevenue.ai was founded by Ratmir Timashev (founder of Veeam) 

and Vlad Voskresensky (founder of Revenue Grid) to create the next generation of CRM systems. 

We’re building an AI-native CRM platform that completely redefines how sales automation 

works. 
By structuring data for intelligent automation, we enable agentic AI to design workflows, assist Sales Leaders and Reps in real time, and generate predictable sales funnels – all through a simple, chat-driven interface. 

Our mission: to build a CRM that works for User, not the other way around. 

About the Role 

This role is for engineers who thrive in dynamic environments where processes are still being shaped and impact is immediate. 

At ChatRevenue, we focus on outcomes rather than ceremonies – no endless grooming sessions or heavy planning rituals. 

Our engineering processes are evolving, and you’ll have a direct influence on how they are structured. There are no excessive management layers or long approval chains – decisions are made quickly through open discussion and direct collaboration. 

Previous startup experience is not required. What matters is your ability to operate without rigid rules, take initiative, and make independent technical decisions. 

What You’ll Do 

• Architect and maintain backend services using Python / FastAPI 
• Build seamless integrations with between our code product and external ecosystems (CRM, communication platforms) 
• Design and optimize scalable ETL/ELT pipelines 
• Develop and deploy production-ready Generative AI features to enhance product capabilities 
• Lead features from initial technical design to production release and ongoing support 
• Deliver high-quality code in short, impactful cycles 
• Maintain DevOps best practices (testing, CI/CD, security, containerization) 

What We’re Looking For 

• Strong Python skills (FastAPI, async, Pydantic) 
• Experience with SQL (PostgreSQL), Pandas, and data pipelines 
• Solid understanding of HTML/CSS/JavaScript
• Hands-on experience with Docker, Kubernetes, Azure, Kafka 
• Experience with CI/CD and Git-based workflows 
• Curiosity about product-building and openness to evolving environments 
• Strong teamwork skills – constructive code reviews, active participation in technical discussions, and ownership mindset 

Nice to have 

• Experience with OpenSearch 
• DevSecOps exposure 
• Advanced debugging skills 
• Azure API Management 
• Experience developing Generative AI features 
• Integrations with Salesforce, Google Meet, or similar platforms 

Why Join Us 

• Remote-first culture – work from anywhere 
• Flexible schedule aligned with European time zone 
• No bureaucracy or micromanagement – transparent and fast decision-making 
• Direct product impact – your work ships quickly and is visible in production 
• Real ownership – influence architecture and technical direction 
• Unlimited paid vacation and paid sick leave 
• Company-provided equipment 
• Premium AI tools subscription (ChatGPT, Copilot, Claude) 
• Professional growth – opportunity to own a technical domain or lead a module as the company scales 
• Competitive compensation starting from $6,000

If you want to build an AI-native CRM from the ground up and be part of the core team shaping the product, we’d love to hear your story. 

Apply or reach out directly – let’s build something truly transformative together.