Jobs at Djinni

Description

The Client is the UK’s leading fee-free mortgage broker. They are seeking experienced Data Engineer to join client’s data team. This role focuses heavily on core data engineering, architecture, and pipeline delivery within established frameworks rather than the presentation layer. The ideal candidate will be responsible for designing, building and optimizing scalable ingestion-to-consumption patterns and modern data warehousing principles.

Requirements

Must-Have Skills:

• Python / PySpark for Data Engineering: Strong experience writing PySpark notebooks in Fabric, building data transformation/cleansing logic, and notebook-based pipeline development.
• Medallion Architecture: Proven expertise in designing and implementing Bronze/Silver/Gold layered ingestion-to-consumption patterns, incremental loading, and transformation logic.
• Dimensional Modelling: Strong knowledge of Kimball-style fact/dimension design, SCD (Slowly Changing Dimension) handling, and Gold-layer conformance.
• T-SQL & DDL Proficiency: Expertise in warehouse schema design, writing stored procedures, and performance tuning.
• Pipeline Development & Orchestration: Practical experience with Dataflows Gen2, Fabric pipelines, notebook orchestration, scheduling, and dependency management.
• Good written and verbal English communication skills.

Nice-to-Have Skills:

• Governance & Security Implementation: Exposure to Microsoft Purview integration, Entra ID mapping, and workspace/access control architecture.
• Power BI & Semantic Modelling: Basic knowledge of DAX, semantic model design, and row/column/object-level security (RLS/CLS/OLS).

Job responsibilities

• Data Pipeline & Framework Development: Design, build, and orchestrate robust end-to-end data pipelines using Dataflows Gen2, PySpark notebooks and native orchestration tools.
• Architecture & Storage Layer Management: Implement and maintain Medallion Architecture (Bronze, Silver, Gold layers), ensuring proper incremental loading strategies and layer-specific transformation logic.
• Data Warehousing & Dimensional Modelling: Build Kimball-style fact and dimension models, manage Slowly Changing Dimensions (SCDs), and ensure Gold-layer data conformance for analytics consumption.
• Data Transformation & Optimization: Write clean, modular Python/PySpark code and T-SQL/DDL logic for data cleansing, schema design, stored procedures, and query performance tuning.

Description

We are looking for an experienced Senior Product Owner / Business Analyst to join our team and work closely with the client, business stakeholders, and engineering teams. The role combines strong business analysis skills with product ownership responsibilities, ensuring that business needs are translated into clear, actionable requirements and successfully delivered by the development team.

#LI-MP2
#LI-Remote

Requirements

• 5+ years of experience as a Business Analyst, Product Owner, or in a similar role within software development.
• Strong experience in requirements elicitation, analysis, and documentation.
• Hands-on experience with product backlog management and prioritization.
• Strong understanding of Agile/Scrum delivery processes.
• Ability to translate business needs into clear requirements and actionable user stories.
• Experience working directly with clients and multiple stakeholders.
• Strong communication, facilitation, and stakeholder management skills.
• Ability to work effectively with technical teams and understand software development concepts.
• Strong analytical and problem-solving skills.
• Upper-Intermediate / Advanced English.
• Experience in complex enterprise products.
• Experience working in a distributed/international team.
• Technical background or good understanding of modern software architecture and APIs.
• Experience with Jira and Confluence.

Job responsibilities

• Act as a bridge between business stakeholders, the client, and the engineering team.
• Elicit, analyze, and document business and functional requirements.
• Own and maintain the product backlog, ensuring clear priorities and alignment with business goals.
• Define user stories, acceptance criteria, and functional requirements.
• Facilitate requirements clarification and refinement sessions with technical teams.
• Work closely with Product Managers, Architects, Developers, QA, and other stakeholders.
• Support the team throughout the delivery lifecycle, from requirements definition through implementation and validation.
• Identify dependencies, gaps, risks, and potential improvements.
• Participate in planning, refinement, demos, and other Agile ceremonies.
• Ensure delivered solutions meet business needs and agreed acceptance criteria.
• Proactively communicate progress, issues, and decisions to relevant stakeholders.

Description

We are looking for a Senior Automation Test Engineer to join a team developing and testing an advanced healthcare medical device that combines embedded hardware, software, and user-facing applications.
The project involves a complex hardware-software system used in a regulated medical environment. The main focus of this role is developing and maintaining automated tests using a custom Python-based test automation framework, as well as supporting system and integration testing of the device.

Requirements

• 5+ years of experience in Software Testing / QA
• Strong hands-on experience with Python/Robotframework/Bash
• Solid experience in test automation
• Experience creating and maintaining automated test suites
• Good understanding of software testing methodologies and test design techniques
• Experience with system and/or integration testing
• Experience testing systems that interact with hardware
• Good debugging and troubleshooting skills
• Experience working with Git and defect tracking systems
• Ability to understand technical requirements and system behavior
• Good English communication skills

Job responsibilities

• Design, develop, and maintain automated tests using a custom Robotframework automation framework
• Analyze system and software requirements and translate them into automated test scenarios
• Perform system, integration, and functional testing of a medical device
• Work with real hardware, devices under test, simulators, and supporting test equipment
• Investigate test failures, analyze logs, and support root cause analysis
• Maintain and improve the existing automation framework and test infrastructure
• Review test results and report defects with clear technical analysis
• Collaborate closely with software developers, system engineers, and other QA engineers
• Participate in test planning, estimation, and technical discussions
• Contribute to improving test coverage, reliability, and overall test automation efficiency

• Support CI/CD and automated test execution where applicable

   

Description

The project team is part of a commercial software delivery organization focused on building and maintaining customer-facing applications. The department works in an agile environment, collaborating closely with developers, product owners, and stakeholders to deliver high-quality, reliable solutions. The team is expanding and is looking for an expirience Senior QA Automation Test Engineer to join the project.

#LI-MP2
#LI-Remote

Requirements

• 5+ years of hands-on experience in test automation using Java.
• Strong experience with Playwright(Selenium, Java binding) for UI test automation.
• Solid knowledge of JUnit 5, test design principles, and the test lifecycle.
• Proficient in testing REST APIs using tools like Retrofit, Postman, or similar.
• Experience validating data at the database level using SQL or frameworks like MyBatis.
• Comfortable working in Agile/Scrum environments, participating in daily standups, reviews, and retrospectives.
• Hands-on experience with CI/CD tools (e.g., Jenkins, GitLab CI).
• Knowledge of test reporting tools (e.g., Allure).
• Ability to troubleshoot and debug automation failures across multiple layers (UI, API, DB).
• Ability to create a functional test plan and test cases.
• Strong communication skills and a proactive attitude.
• Strong understanding of AI and Generative AI technologies, including LLM-based applications.

Nice to Have:

• Experience with Manifold for Java (plugin and usage).
• Exposure to test planning and requirement traceability.

Job responsibilities

• Collaborate closely with developers and other QA engineers during sprint planning and refinement.
• Design, implement, and maintain E2E and integration tests for web applications and RESTful APIs.
• Build and enhance automated test suites using Java 11, Playwright, and JUnit 5.
• Perform API-level testing using Retrofit, and validate business logic and database operations with MyBatis.
• Configure and manage test environments and property files using the owner library.
• Participate in code reviews and contribute to test framework improvements and standards.
• Analyze test results, investigate issues, and log defects with clear documentation.
• Work with Jenkins or similar CI/CD tools to monitor and troubleshoot test pipeline runs.
• Leveraging AI tools to accelerate test automation, optimize QA workflows, and validate AI-enabled products and features.

Description

We are looking for a hands-on Senior Python Engineer who can take an AI use case from technical design through implementation and integration into a production environment.

The ideal candidate combines strong Python/software engineering skills with practical experience building LLM and GenAI solutions, and is comfortable working in an enterprise environment with complex business and technical requirements.

Requirements

• 5+ years of software engineering experience (including backend/distributed systems), with 2+ years designing and running LLM/agentic systems in production.
• Expert Python engineering for long-running services: concurrency, resource management, performance profiling, API client resilience (retries, timeouts, backoff).
• Deep working knowledge of model capabilities/limits across tiers, model selection and pinning strategy, cross-region inference profiles, quota and throughput planning.
• Expert-level use of Strands Agents/LangGraph in production, including custom tool adapters, memory/session management, and framework-internals debugging.
• Proven ability to select and implement the right pattern per problem, decompose oversized tasks (map-reduce with checkpointing), and escalate autonomy only on eval evidence.
• Experience owning tool contracts as versioned integration surfaces: schema design, least-privilege scoping, read/write separation, contract testing with API-owning teams.
• Advanced context engineering: prompt layout for cache hit rate, stable-prefix design, per-step context allocation, measured (not guessed) representation choices.
• Experience designing versioned output contracts consumed by downstream systems, including evidence/citation fields and compatibility management.
• Experience designing evaluation methodology end-to-end: statistical treatment of nondeterminism, grader mix and judge calibration, eval-gated CI for prompt/model/config changes, growing eval sets from production failures.
• Experience designing defense-in-depth for production agents: prompt-injection resistance, tenant isolation, PII redaction handling, least-privilege tool access, degradation ladders and failure policies.
• Experience operating agents in production: end-to-end run reconstruction, per-tenant cost attribution, drift monitoring, incident response for AI-specific failures, capacity and quota management.
• Strong AWS experience including Amazon Bedrock (and ideally Bedrock AgentCore: Runtime, Gateway, Memory, Identity), infrastructure as code (CloudFormation/Terraform), and event-driven pipeline design (queues, DLQs, idempotency, checkpointing).
• Experience designing derived-data stores for agent pipelines (run state, checkpoints, memoized intermediate results) with clear source-of-truth boundaries.
• Ability to lead technical discussions, mentor engineers, and align integration contracts with application teams and architects.

Job responsibilities

• Own the design and delivery of production agent pipelines end-to-end, from trigger to published output, including decomposition for oversized inputs.
• Own tool contracts as versioned integration surfaces jointly with API-owning teams; drive contract-first development and contract testing.
• Design the release-bundle process (prompt + model + tools + config versioned and deployed as one unit, stamped on every output).
• Define the evaluation methodology and quality gates; calibrate judges against human experts; grow eval sets from production failures.
• Design the failure and degradation policy (retry, resume, degrade, honest absence), pathological-input handling, and prompt-injection defense-in-depth.
• Own production operations: dashboards, alerts, drift monitoring, incident response, quota/capacity planning, cost optimization.
• Lead code and design reviews; enforce testing standards across agent, tools, and infrastructure code.
• Design and operate shadow/champion-challenger rollout mechanisms; manage pinned-model upgrades with mandatory eval reruns.
• Partner with product and domain experts to define output contracts, quality rubrics, and feedback loops; challenge requirements that harm quality or cost.
• Mentor junior and middle engineers; develop the team’s agent-engineering playbook.

TenThousand is a Ukrainian engineering company that has been developing solutions for Fintech and Retail clients in the US, Israel, and Europe since 2021. Our client base includes banks, fintech companies, and logistics services. We tackle complex technical challenges—such as high-risk projects or those involving legacy architecture—and transform them into reliable, scalable, and stable systems. We work on real commercial projects, applying a product-oriented approach and adhering to high standards of quality and security.

We run our own free 3-month academy and are currently looking to add 5 developers to our team for a remote role.

What you’ll be doing:
• Developing features for real commercial projects for clients in the US, Israel, and Europe
• Working in a team under the guidance of a lead from day one
• Developing your technical skills in an environment that upholds real product standards

Requirements:
• Solid knowledge of React, JavaScript, and TypeScript
• Willingness to learn quickly and adopt new approaches
• Responsibility, initiative, and self-organization
• English proficiency at B1+ level (for working with documentation and basic communication)

What we offer:
• Involvement in real projects from the very first weeks
• Free 3-month internal academy and mentorship
• Systematic professional development and career growth within the company
• Remote work format | Office-based work

Selection stages:
1 HR interview — introduction, motivation, soft skills (20–30 min)
2 Technical assignment or interview with the lead
3 Discussion with the project lead → job offer

About the Role

We are building next-generation Generative AI technology for the gaming industry, changing the way video advertising content is produced and scaled. Our technology can recreate and emulate game development environments, helping gaming companies generate video ads, new game levels, and game mechanics significantly faster and more efficiently.

By combining Generative AI with genetic machine learning models, the technology has already demonstrated strong results in collaboration with major gaming companies, including improvements of up to 10x in key performance metrics.

We are now looking for a Motion Designer to join the team and contribute to creating high-quality, engaging advertising content for mobile games.

Your Responsibilities

As a Motion Designer, you will:

• Work within Unity to create and optimize dynamic, engaging ads for mobile games.
• Utilize After Effects to enhance video ads, ensuring they are visually compelling and aligned with the marketing strategy.
• Collaborate closely with game developers and marketing teams to design high-quality assets for ad campaigns.
• Apply your artistic skills to elevate the aesthetic quality of the ads, balancing creativity with performance optimization.

Key Requirements

We are seeking candidates with the following qualifications:

• Proficiency in Unity: You should feel confident working within the Unity environment to create and modify assets for video ads.
• Experience with After Effects: Strong knowledge and usage of After Effects to create polished video content.
• Background in mobile game ads: At least 1 year of professional experience in producing ads for games, ideally mobile games.
• A creative mindset with artistic inclinations, bringing unique visual perspectives to the table.
• Bonus: You are an avid mobile gamer yourself, with a deep understanding of game mechanics and audiences.

Hiring Process

We value a streamlined and transparent hiring process:

1. Home Task (Optional): You may be asked to complete a task to demonstrate your skills. This will be discussed during the technical interview.
2. Technical Interview: A comprehensive discussion with the Hiring Manager, including a review of your portfolio and the optional test task.

3. HR Interview: A final conversation with the HR team to align expectations, culture, and values.

    

Benefits

We offer:

• 20 days of vacation annually, plus all national holidays.
• 10 days of sick leave per calendar year.
• Paid software licenses and tools necessary for your work.
• A dynamic, remote-friendly work environment with the flexibility to work from anywhere.

We are seeking a highly skilled and experienced Senior DevOps Engineer to join our dynamic team. The ideal candidate will have a strong background in Kubernetes, Terraform, ArgoCD, Continuous Integration (CI), Continuous Deployment (CD), developer toolsets, and Software Development Life Cycle (SDLC) best practices. This role requires a deep understanding of modern DevOps tools and practices, as well as a commitment to fostering a responsive, communicative, and collaborative environment. This role requires on-call duties.

Key Responsibilities:

• Develop and manage large scale production Kubernetes clusters in a cloud environment (AWS preferred).
• Deploy, manage, and monitor containerized applications using Kubernetes.
• Develop and manage infrastructure as code using Terraform.
• Design, implement, and maintain CI/CD pipelines to ensure efficient and reliable software delivery.
• Manage and optimize cloud infrastructure in AWS to support scalable and secure applications.
• Administer and optimize source code repositories and workflows in GitHub.
• Collaborate with development teams to enhance developer toolsets and streamline SDLC processes.
• Troubleshoot and resolve infrastructure and application issues.
• Implement best practices for security, reliability, and performance.
• Provide mentorship and technical guidance to junior engineers.
• Communicate effectively with cross-functional teams to understand requirements and deliver solutions.

Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent experience.
• 5+ years of experience in a platform engineering, DevOps or similar role.
• Extensive experience with Terraform for infrastructure as code.
• Experience with self-hosted Kubernetes clusters for container orchestration and ArgoCD.
• Proficiency in Golang or Python(or any other languages) for scripting and automation.
• Hands-on experience with GitHub for version control and collaboration. 
• In-depth experience with AWS cloud services.
• Excellent problem-solving skills and the ability to work under pressure.
• Exceptional communication skills, both verbal and written.
• Proven ability to work collaboratively in a team environment.
• Strong organizational skills and attention to detail.
• In depth networking knowledge.
• Hands-on experience with AI-assisted development tools, such as GitHub Copilot and Claude Code.

Preferred Qualifications:

• Experience with Github runners and other CI/CD tools and platforms.
• Knowledge of security best practices in cloud environments.
• Experience with observability tools such as Prometheus, and ELK and Grafana stacks- nice to have .
• Certification in AWS or Kubernetes and experience with Backstage is a plus.
• Experience with kOps is a plus.
• Knowledge of Cilium CNI is a plus.
• Experience with Jenkins is a plus.

We offer*:

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

*not applicable for freelancers

Join our Revenue Management engineering team and take ownership of the software that powers pricing decisions for every SIXT vehicle, worldwide. Our back office platform enables Pricing Managers to configure rates for both B2C and B2B customers and serves as a critical backbone for a range of internal business operations. The current system is built on a legacy codebase and your primary mission will be to reimagine and rebuild it from the ground up. This is a rare greenfield opportunity to architect a replacement for a core, mission-critical platform that directly shapes the prices millions of customers see across the globe.

What You’ll Do:

• Build and maintain scalable services and integrations
• Design solutions to solve complex problems in legacy and data-intensive systems
• Write clean, tested code and perform code reviews
• Own your services: “You build it, you run it.”
• Collaborate with Product Owners and stakeholders

Must-Have Skills:

• 4-5 years experience with Go, PHP.
• Strong OOP, design patterns, and experience with working with legacy code
• Strong SQL skills (with PostgreSQL, Oracle)
• Unit & integration testing, familiarity with XML, JSON, YAML
• Version control: Git.
• Agentic coding experience
• Upper-Intermediate English.
 

Nice-to-Have:

• Symfony, frontend frameworks (React, ExtJS, jQuery)
• Microservices, goMicro, REST/gRPC APIs, message brokers (Kafka, RabbitMQ)
• Cloud Experience, Docker, Kubernetes, observability tools (Prometheus, Grafana, Instana)
• Exposure to AI/ML tools and frameworks for data-intensive applications.
• Performance optimization and load testing.
• Security/authentication: OAuth2, JWT, Keycloak
 

What we offer:

• Competitive high salary (pegged to EUR)
• Full-time employment as an internal employee of SIXT TECH Ukraine
• Relocation compensation
• People-oriented management with minimal bureaucracy
• A challenging role where you can learn, grow, and influence architecture and processes
• 25 calendar days of paid vacation
• Educational budget for courses, conferences, and certifications
Medical insurance
• Co-funding (50%) for gym and foreign language classes

If you want to work with modern data tech, real business impact, and a global product at scale — we’d love to hear from you.

Affiliate Manager (Crypto Casino)

We are looking for an experienced Affiliate Manager to join our growing iGaming team and help scale our affiliate program for a new Crypto Casino project.

Responsibilities

• Search for and onboard new SEO affiliate partners.
• Build and maintain long-term relationships with SEO webmasters and affiliate teams.
• Negotiate and manage RevShare (RS) partnership agreements.
• Monitor traffic quality, player value, and long-term partner performance.
• Analyze FTDs, NGR, LTV, retention, and overall affiliate profitability.
• Scale existing SEO partnerships and identify new growth opportunities.
• Work closely with CRM, Product, and BI teams to maximize affiliate performance.

• Monitor the competitive landscape and identify high-potential SEO partners.

   

Requirements

• Experience as an Affiliate Manager in Crypto Casino.
• Mandatory experience working specifically with SEO traffic.
• Strong understanding of RevShare (RS) business model.
• Existing network of SEO affiliates and webmasters.
• Experience negotiating and managing long-term RS partnerships.
• Understanding of SEO affiliate economics, player quality, and lifetime value.
• Strong analytical and communication skills.

• English — Upper-Intermediate or higher.

   

We Offer

• Fully remote work.
• Competitive fixed salary.
• Attractive performance-based bonus system.
• Long-term cooperation.
• Opportunity to grow with a new international product.
• Fast decision-making and minimal bureaucracy.
• Supportive team and transparent processes.

If you're passionate about affiliate marketing and have experience in the iGaming industry, we'd love to hear from you.

Description

We are looking for a mature and proactive Scrum Master who can operate independently, rather than someone focused only on facilitating Scrum ceremonies.

The person should be comfortable taking ownership of delivery-related topics, proactively addressing blockers and dependencies, challenging inefficient processes, and helping the team improve its delivery predictability.

Requirements

• 3+ years of experience as a Scrum Master in software development.
• Strong practical knowledge of Scrum and Agile methodologies.
• Proven experience working with software engineering teams.
• Strong experience with Jira and Confluence or similar tools.
• Hands-on experience with delivery planning, tracking, and reporting.
• Experience managing impediments, risks, and dependencies.
• Experience working closely with Product Owners and technical teams.
• Strong facilitation and stakeholder management skills.
• Ability to work proactively and independently.
• Strong communication and conflict-resolution skills.
• Upper-Intermediate or higher English.
• Experience working with distributed international teams.
• Experience coordinating dependencies across multiple teams.

• Experience in scaled Agile environments.

   

Job responsibilities

• Facilitate Scrum ceremonies, including Sprint Planning, Daily Scrum, Sprint Review, Retrospectives, and Backlog Refinement.
• Support the team in planning and delivering Sprint and release commitments.
• Track delivery progress, risks, blockers, and dependencies.
• Proactively identify and remove or escalate impediments.
• Work closely with the Product Owner to maintain a healthy and well-refined backlog.
• Ensure effective communication and collaboration between Product, Engineering, QA, and other stakeholders.
• Support estimation, planning, and delivery tracking.
• Monitor Agile metrics and use them to improve team transparency and delivery predictability.
• Facilitate continuous improvement and help the team identify and implement practical process improvements.
• Support effective management of cross-team dependencies.
• Facilitate resolution of team conflicts and help maintain a collaborative team environment.
• Provide clear and timely updates on delivery status, risks, and dependencies.

We are looking for a hands-on QA Automation & AI Lead to build the next generation of AI-driven quality engineering for our web applications.

This is not a traditional QA Lead role. We are looking for an engineer who deeply understands QA, is strong in automation, and has practical experience building and testing LLM-powered products.

What You’ll Do

• Build AI-driven frontend test automation, primarily using Playwright + LLMs, to test real user journeys.
• Design frameworks where AI can help generate test cases, execute tests, validate outcomes, and analyze failures.
• Build evaluation frameworks for LLM products, including prompt evaluation, hallucination testing, regression testing, and output quality.
• Make intelligent decisions about which model to use where, balancing accuracy, latency, context size, and cost.
• Optimize token consumption for frontend automation instead of sending entire pages/context to expensive models unnecessarily.
• Identify where to use deterministic automation vs. LLM-based automation.
• Explore AI-assisted approaches to make manual and exploratory testing faster and more effective.
• Remain highly hands-on while providing technical direction and guiding engineers implementing the automation platform.

What We’re Looking For

• Strong software engineering and test automation experience.
• Hands-on experience with LLMs and AI-powered applications.
• Strong experience with Playwright or similar browser automation frameworks.
• Experience with prompt/LLM evaluation, hallucination testing, and non-deterministic systems.
• Good understanding of token optimization, context management, model selection, latency, and LLM costs.
• Strong understanding of QA principles, test strategy, regression testing, and edge cases.
• Ability to prototype quickly and turn experiments into scalable automation frameworks.
• Strong technical leadership skills while remaining an individual contributor.

What Success Looks Like

You will help us move from traditional QA toward AI-native quality engineering—where AI assists in creating and validating test scenarios, frontend journeys are intelligently automated, LLM products are continuously evaluated, and model/token usage is optimized for both quality and cost.

We’re looking for someone who thinks beyond “How do I automate this test?” and asks “What is the smartest combination of deterministic automation and AI to test this product?”

Gross salary 14,000 - 21,000 PLN 

We are looking for a highly skilled Senior Data Scientist to join our team.  As a Senior Data Scientist, you will be responsible for designing and implementing advanced data models, analyzing complex business problems, and developing solutions that help optimize sales, marketing, pricing, and overall commercial performance in a leading American publishing house.

The role will contribute to the transition from primarily descriptive analytics toward more advanced, data-driven decision making.

Skills & Experience

• Bachelor’s or Master’s degree in Data Science, Computer Science, Engineering, Statistics, Mathematics, or a related field;
• 5+ years of experience in data science roles;
• Strong experience applying data science and machine learning to business problems, ideally in areas such as sales, marketing, customer behavior, demand forecasting, or pricing optimization;
• Proficient in Python and SQL for data analysis, scripting, and machine learning;
• Proficient in using agentic coding tools like Claude Code, Codex, Cursor
• Experience with SciKit-learn, Pytorch, and similar machine learning frameworks for building and deploying machine learning models;
• Experience working with modern data warehouses/lakehouses like Snowflake, Databricks, BigQuery, Redshift
• Strong analytical and problem-solving skills, with the ability to translate ambiguous business problems into data-driven solutions;
• Ability to work independently and collaborate with business and technical stakeholders;
• Fluent in English and excellent communication skills.

Nice to have: 

• Strong background in data science, with extensive experience in leveraging advanced analytics and machine learning to drive data-driven business decisions.

Responsibilities

• Design, develop, and implement advanced data models and machine learning algorithms to solve complex problems in the publishing domain, like author discovery;
• Analyze sales, marketing, customer, product, and pricing data to identify opportunities and support business decisions;
• Develop data-driven approaches to areas such as demand forecasting, customer behavior, sales optimization, marketing effectiveness, and pricing;
• Work with business stakeholders to understand broad or ambiguous business challenges and translate them into analytical and machine learning solutions;
• Collaborate with cross-functional teams to understand data requirements and deliver actionable insights and recommendations;
• Build and maintain scalable data pipelines using technologies such as Snowflake, and DBT;
• Leverage Python and SQL for data analysis, model development, experimentation, and automation;
• Utilize SciKit-learn, Pytorch and similar frameworks for developing and deploying machine learning models;
• Help evolve the organization from descriptive analytics toward predictive and prescriptive analytics and data-driven decision making;
• Stay current with emerging trends and technologies in data science and machine learning.

CodeGeeks Solutions is a software company led by top-notch experts with over 10 years of experience in product design & software development. We are able to comprehensively cover the needs of our clients and focus on the full cycle of development.

Now we are looking for an ambitious Junior Strong Full Stack JS Developer in Lviv to join our team!
 

Why us?

• We trust our team and care deeply that everyone feels comfortable and supported in their work and our positive atmosphere
• This work will be fulfilling! You’ll develop and acquire new skills, and we’ll support you every step of the way
• Here you will find like-minded people and true friends
• Here, you’ll even look forward to Mondays!
• We’re a young and successful team! :)

We Offer

• 15 days of annual time off paid + company-wide New Year holiday in the last week of the year (5 days);
• 20 days of sick leave paid (5 — 100%, 15 — 50%);
• Legal support;
• IT Cluster membership;
• Flexible work schedule and remote work options;
• Chance to make a real impact and shape the future of our company;
• Education compensation;
• Clear career map, continued professional development and growth opportunities;
• Opportunity to work with a talented and dynamic team of experts;
• Internal training and meetups;
• Access to corporate learning materials;
• High-level compensation and regular performance-based salary and career development reviews;
• PE accounting and support;
• Work in a comfortable, modern and cozy office in Lviv;
• Team buildings & corporate events;
• Referral program.
   

Requirements

• At least 2 years of commercial experience.
• English: Upper-Intermediate.
• Technical Education.
• Located in Lviv with the opportunity to visit the office.
• Strong frontend experience with React, NextJS, or similar modern frameworks.
• Backend development experience with NodeJS/NestJS, or other modern backend technologies.
• Good knowledge of relational and NoSQL databases.
• Proficient with AI and agentic coding tools such as Cursor, Claude Code, or similar.
• Strong programming fundamentals and ability to quickly work with new languages, frameworks, and existing codebases.
• Experience with TypeScript or other strongly typed languages and GIT.
• Good understanding of REST principles and how to design and develop RESTful APIs.
• Basic knowledge of Cloud technologies, such as AWS or Azure, is preferred.
• Ability to write high-quality, maintainable, and well-documented code.
• Good problem-solving skills and ability to work independently and in a team.
• Experience with agile methodologies and software development lifecycle.
   

Responsibilities

• Design, develop, and maintain modern web applications using appropriate frontend and backend technologies.
• Design and develop RESTful APIs and backend services.
• Design and maintain relational and NoSQL databases.
• Use AI coding agents as part of the development workflow for implementation, debugging, refactoring, and testing.
• Review and validate AI-generated code, maintaining responsibility for architecture, quality, security, and performance.
• Write high-quality, maintainable, and well-documented code.
• Troubleshoot and debug issues as they arise.
• Continuously improve the performance, scalability, and reliability of applications.
   

At CodeGeeks, we’re dedicated to fostering a culture of collaboration, innovation, and excellence. If you’re passionate about driving business growth and creating value for our clients, we are waiting for your resume!

Responsibilities

• Handle technical requests from clients, operators, and internal teams.
• Investigate, reproduce, and troubleshoot slot game issues.
• Analyze logs, game sessions, and technical identifiers.
• Verify game functionality on desktop and mobile.
• Create bug reports and verify fixes.
• Perform smoke/sanity testing after fixes and releases.
• Support production incident investigations and escalate critical issues.
• Track client-facing issues through resolution.
• Collaborate with QA, Development, DevOps, Account Managers, and other teams.

• Maintain troubleshooting documentation and identify recurring issues.

   

Requirements

• 2+ years of experience in QA, Technical Support, Application Support, or similar.
• Understanding of software testing and client-server architecture.
• Experience with defect investigation and bug reporting.
• Basic knowledge of HTTP/HTTPS and SQL.
• Experience with REST APIs and Postman.
• Experience with ClickUp or similar tools.
• Strong analytical and troubleshooting skills.
• Good technical communication skills.
• English sufficient for written communication.

Nice to Have

• Experience in iGaming, online casino, or slot provider products.
• Knowledge of casino/game provider or aggregator integrations.
• Experience with Kibana, Grafana, Sentry, Datadog, or similar tools.
• Understanding of microservices and production incident investigation.
  
   

Benefits:

• 21 vacation days + 2 extra day-offs annually;
• 12 paid sick days;
• Fully remote format — work from anywhere you feel productive;
• Flexible schedule: start your day anytime between 08:00–11:00 CET;
• Fixed budget for health insurance and gym/fitness;
• Provided all required work equipment;
• Zero bureaucracy and direct communication with founders and C-level;
• Minimal meetings, async-friendly workflow;
• Startup energy: fast motion, creativity, and tight-knit communication;
• Business trips and team meetups several times per year;
• Multiple salary payout options (flexible formats);
• …And many more perks unlocked after we hit break-even.