Jobs at Djinni

We are looking for an experienced Data Researcher to support our outbound marketing and sales activities.

Your main responsibility will be to research target companies and decision-makers, collect and verify contact data, and prepare accurate lead lists for outbound campaigns.

Responsibilities

• Research companies and decision-makers based on predefined ICPs and targeting criteria.
• Build and enrich lead lists using LinkedIn Sales Navigator, email finders, verification tools, and other data research platforms.
• Find, verify, and maintain accurate contact and company information.
• Enrich leads with additional data required for segmentation and personalization.
• Prepare lead lists for cold email, LinkedIn outreach, and ABM campaigns.
• Research relevant business signals such as hiring activity, company growth, funding, technologies, and other triggers.
• Maintain clean and structured lead data in HubSpot.
• Work closely with the marketing and outbound teams to improve targeting and data quality.

Requirements

• 1–2 years of hands-on experience in data research, lead generation, or a similar role.
• Hands-on experience with LinkedIn Sales Navigator and CRM platform.
• Experience using different email finders, email verification tools, and lead research platforms.
• Strong Google Sheets / Excel skills.
• English level B1 or higher.
• Strong attention to detail and ability to work with large datasets.
• Good online research and analytical skills.
• Ability to work independently and accurately follow targeting criteria.

Strong Advantage

• Previous experience in an IT outsourcing, software development, staff augmentation, or IT services company.
• Experience preparing data for cold email and LinkedIn outreach campaigns.
• Understanding of B2B ICPs, buyer personas, and outbound targeting.

We Offer:

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

About the project:
A connected beauty technology company building a smart mirror (in-store, running proprietary software) and a mobile app on iOS and Android. Behind both sits the company’s intelligence layer, which includes an AI Skin Analyzer, a virtual makeup artist, and a routine builder. Skin analysis already runs on proprietary models — the next step is live, realistic rendering on a real face, on a phone and on a wall-mounted mirror.

The role:
This role has more ownership than most: there is no existing face-rendering team to join, and you’ll set its standards. It also has more physical hardware than most software roles — you’ll work with a real Smart Mirror and real devices, and some of the hardest problems (light, skin, cameras) only show up there.

We are hiring an engineer to own the real-time face rendering behind three products:

• Treatment Preview — previews cosmetic treatments on the user’s own face (wrinkle smoothing and brow lift for neurotoxin-style treatments, lip and cheek volume for dermal fillers);
• AR product try-on — letting a shopper see a specific lipstick, blush, or foundation shade from the catalog on their own face, live, with accurate color matching;
• Guided makeup looks — walking a user step by step through a complete makeup look rendered live on their own face, built on the same shared engine.

This is a hands-on senior IC role. You’ll be the person who knows how the face engine works, building it rather than integrating someone else’s. The Flutter app team builds the screens around your work, and ML engineers own the analysis models. You own everything between the camera frame and the pixels on screen.

What you’ll work on:

• Build a shared face-rendering engine for Android and iOS: camera frames in, face tracking, region masks and warps, GPU shading, and frames out to a Flutter texture;
• Build Treatment Preview: smoothing, warps, and volume effects rendered behind a Flutter texture, guided by a wrinkle mask that updates slower than the frame rate, keeping effects stable on a moving face;
• Build realistic makeup rendering: lips, cheeks, base, eyes, with finishes (matte, satin, gloss, shimmer) that respond to light and work across the full range of skin tones;
• Connect the product catalog to the face: a pipeline that turns a product’s shade and finish into rendering parameters, scalable to thousands of products;
• Build multi-step guided makeup looks on the new engine;
• Optimize for real hardware: modern iPhones, mid-range Android phones, and a Smart Mirror running a 4K USB camera all day in-store;
• Measure quality: stability, color accuracy against real product swatches, and failure rates by skin tone, lighting, and face angle.

Tech stack:

• Rendering: OpenGL ES 2.0/3.0 (GLSL) on Android, Metal on iOS;
• Face geometry: ML Kit face detection for capture; dense face landmarks and blendshapes for rendering;
• Image processing: C++ with OpenCV;
• Native: Kotlin and C++ on Android, Swift on iOS;
• App: Flutter (Dart) with Bloc — you’ll write the platform-channel and texture boundary, and the app team writes the UI;
• Test devices: iPhone, Galaxy-class Android, and the company’s Smart Mirror.

Requirements:

• 5+ years of professional software engineering, including substantial real-time graphics work — you have written and shipped GPU shaders (GLSL, Metal, HLSL, or similar) in a product that ran at frame rate on real devices. This is the single most important requirement;
• Hands-on work with face tracking or face geometry: landmarks, face meshes, UV mapping, region masks, warps, or morphs (AR filters, virtual try-on, avatars, and face retouching all count);
• Native mobile development on Android (Kotlin/Java, NDK/C++) or iOS (Swift/Objective-C), with willingness to work on both;
• Experience putting ML models in a real-time pipeline, designing rendering around the model being the slow part;
• Practical grasp of color and image processing: color spaces and gamma, blending, frequency separation, filtering;
• An eye for realism and the discipline to measure it;
• Comfort working in an existing codebase;
• Clear English, spoken and written, with a working style that holds up across time zones.

Will be a plus:

• Shipped a virtual makeup try-on, beauty filter, or face-retouching product;
• Flutter external textures or platform views, or embedding native rendering in any cross-platform UI framework;
• Training or fine-tuning segmentation models (face parsing, lips, skin) and building the datasets behind them;
• Physically based shading, or measuring color from real product swatches;
• Experience with inclusive evaluation across Fitzpatrick skin types, lighting conditions, and ages;
• Low-level Android camera work (Camera2, UVC/external cameras) or embedded devices;
• Knowledge of aesthetic medicine, or experience building consumer features near medical claims.

Working hours:
Our engineering team works in Central European time, and our leadership team is on the US East Coast. Your working day ends at 20:00 CET, and dependable availability through the afternoon until then is a firm requirement of this role. That’s the window where your day overlaps with the US morning, when decisions get made, priorities get set, and cross-team questions get answered.

Not required — please apply anyway if you don’t have these:

• Beauty or cosmetics domain knowledge;
• Flutter or Dart experience;
• A computer science or graphics degree.

We offer:

• Remote work;
• Legal support;
• Paid sick leaves, vacations, and public holidays;
• Medical insurance;
• Free English classes.

This role is ideal for an experienced GNC engineer with hands-on expertise in autopilot development, flight-control systems, and autonomous aerial platforms. You will develop, integrate, and validate guidance and control software, working directly with Ukrainian interceptor manufacturers on system integration and real-world flight testing.

The role combines embedded software development, system-level engineering, and practical flight-test experience in a small, highly technical environment.

This is a full-time, on-site role in Kyiv.

Your responsibilities will include:

• Develop, integrate, and maintain autopilot, guidance, navigation, and flight-control software for autonomous aerial platforms.
• Integrate radar systems and sensor data with existing flight-control architectures.
• Work with established autopilot platforms, including ArduPilot, Betaflight, PX4, and custom systems.
• Analyze flight telemetry and test results, investigate system-level issues, and drive improvements.
• Integrate and debug sensors, embedded software, flight controllers, communication interfaces, and other system components.
• Plan and conduct flight tests in collaboration with Ukrainian interceptor manufacturers.
• Work directly with airframe partners on hardware and software integration.
• Diagnose issues across the full system, from sensors and firmware to flight-control hardware and airframe performance.
• Collaborate closely with engineering teams during prototyping, integration, and flight testing.
• Coordinate technical integration activities in Ukraine and contribute to system architecture and engineering decisions.

• Maintain technical documentation and support continuous improvement of system reliability and performance.

   

What we expect from you:

• English level B2 or higher for effective technical communication with international engineering teams.
• Hands-on experience developing autopilot, GNC, or flight-control systems for UAVs, autonomous aircraft, or related platforms.
• Strong understanding of guidance, navigation, control theory, and flight dynamics.
• Production-level programming experience in C/C++.
• Practical experience with at least one of the following: ArduPilot, Betaflight, PX4, or a custom UAV autopilot system.
• Experience integrating and debugging sensors, embedded systems, and flight-control hardware.
• Ability to analyze real flight logs and telemetry and use the results to improve system performance.
• Hands-on experience with flight testing and system validation.
• Strong understanding of the UAV system architecture and the interaction between software, hardware, sensors, and airframe dynamics.
• Ability to troubleshoot complex, system-level problems across multiple engineering disciplines.
• Strong analytical and problem-solving skills, with a systematic approach to engineering challenges.
• Ability to communicate technical decisions, explain issues, and collaborate effectively with international engineering teams.

Nice to Have:

• Experience with interceptor UAVs or other high-speed autonomous aerial platforms.
• Experience developing an autopilot system from the ground up.
• Background in terminal guidance or other advanced autonomous guidance systems.
• Knowledge of sensor fusion, state estimation, and Kalman filtering.
• Familiarity with MAVLink and UAV communication protocols.
• Experience with software-in-the-loop (SITL) and hardware-in-the-loop (HIL) simulation.
• Experience integrating radar or computer-vision systems with autonomous platforms.
• Previous collaboration with Ukrainian defense manufacturers or military units.
• Experience leading technical integration, owning system architecture, or coordinating multidisciplinary engineering work.

What we offer:

• Hands-on engineering work involving autonomous systems, embedded software, and real-world testing.
• The opportunity to validate engineering solutions in real-world conditions, not just in simulations.
• A small, highly technical team where initiative and technical ownership matter.
• Official employment with reservation.
• Paid vacation and sick leave.
• A long-term project in a fast-moving engineering environment.
• Full-time, on-site work in an office in Kyiv (5 days a week).
• Competitive salary.

Binariks is looking for a Data & AI Engineer (Semantic Layer) to design the knowledge that AI agents reason over. This covers how drugs, payers, coverage rules, prescribers and patient journeys connect, and the shared vocabulary every agent relies on.

The project is an emerging AI decision-intelligence platform for pharmaceutical commercial teams, developed for a US healthcare data and analytics company. It turns daily specialty-pharmacy, hub, payer and clinical data into AI-generated recommendations that show why they were made and who acts on them, then measures whether they worked. The role will join a senior Binariks team working alongside the client's product and engineering teams on AWS.

What we are looking for:

• 5+ years in data engineering, analytics engineering, or solutions engineering, with a solid track record in client-facing environments
• Experience integrating data/semantic context with LLM applications (RAG, GraphRAG, metadata-driven retrieval, or structured outputs) using Python
• Deep expertise in conceptual, logical, and physical data modelling - spanning ER, dimensional, and canonical models, with the ability to map complex business concepts directly to clean data structures
• Hands-on experience with modern data platforms: strong SQL, hands-on experience with AWS or GCP (AWS preferred), and working knowledge of Databricks (Delta Lake, Unity Catalog)
• Experience with data catalog and metadata management with tools such as DataHub, Collibra, Alation, Unity Catalog, Dataplex or Glue, including business glossaries and lineage
• Strong interpersonal skills to facilitate discovery workshops, translate domain jargon into robust technical designs, and articulate trade-offs clearly to non-technical stakeholders.
• Working proficiency in English (B2+)
• High comfort navigating ambiguity, rapid context-switching, and operating embedded directly within client organizations

Your Responsibilities:
 

• Design semantic models, business glossaries, and domain taxonomies to capture complex business logic, utilizing ontology standards (such as RDF/OWL or graph models) where applicable
• Implement semantic models (business entities, metric definitions) directly within Databricks Unity Catalog
• Design the foundational semantic contracts for AI agents (shared vocabulary, entity IDs, permission models, context scoping)
• Integrate knowledge graphs with LLM applications (implementing GraphRAG and semantic context retrieval)
• Build, automate, and refresh graph structures from underlying relational and lakehouse data sources
• Manage graph quality through validation, version control, lineage tracking, provenance, and data governance
• Facilitate discovery sessions with domain SMEs to capture business terms, logic, rules, and relationship mappings

Will Be a Plus:

• Practical background with OWL, RDF, SKOS, SHACL, or Protégé
• Experience building and querying graph databases (Neo4j, AWS Neptune, Stardog, GraphDB) via Cypher or SPARQL
• Hands-on work with GraphRAG
• Familiarity with regulated domain standards such as FHIR (Healthcare) or ACORD (Insurance)

About RankHouse
 

RankHouse is a link-building agency specializing in guest posts and link insertions, with a strong focus on the iGaming industry.

We help businesses strengthen their online presence through relevant publisher placements, managing the entire process from website research and negotiations to content placement and publication.

 

We're looking for an experienced B2B Sales Partner who already has an established professional network in iGaming and is interested in turning those connections into long-term business opportunities.
 

What You'll Do

• Identify and approach potential clients through your existing professional network.
• Connect with decision-makers at iGaming operators, casino and sportsbook providers, and SEO or digital marketing teams.
• Manage the full sales cycle, from initial conversations and identifying client needs to negotiating and closing deals.
• Build and maintain long-term relationships with your clients.
• Generate repeat orders, identify upselling opportunities, and grow existing accounts.
• Collaborate with the RankHouse team on pricing, proposals, and service delivery.
   

What We're Looking For

• Proven experience in B2B sales or business development within the iGaming industry.
• An established network of relevant professional contacts, particularly among SEO Managers, Heads of SEO, CMOs, Marketing Directors, and other decision-makers.
• Experience independently negotiating and closing B2B deals.
• Strong communication, relationship-building, and negotiation skills.
• Ability to identify client needs and develop long-term commercial relationships.

Experience selling SEO, link-building, digital PR, or related marketing services would be a strong advantage.
 

Important: We're looking for someone who can bring relevant industry relationships and close deals, not someone focused solely on cold lead generation.
 

What We Offer

• Commission on new sales: Earn commission for every successfully closed and paid order.
• Recurring commissions: Continue earning from repeat orders generated by your assigned clients.
• Higher earning potential: Additional rewards for higher-margin deals and growing client accounts.
• Flexible cooperation: Work remotely, manage your own schedule, and combine this opportunity with other professional activities.
• Operational support: RankHouse handles publisher research, negotiations, placements, and order fulfillment, allowing you to focus on sales and client relationships.
• Long-term opportunity: Build and develop your own client portfolio with ongoing earning potential.
   

Commission rates and commercial terms are discussed individually based on experience, responsibilities, and the cooperation model.

Earning potential: $1,500–3,000+ per month (commission-based).

No fixed salary. Your earnings depend on successfully closed deals, repeat orders, and account growth. Higher-margin sales offer additional commission opportunities.
 

How to Apply

Please briefly tell us about:

• Your experience in B2B sales within iGaming.
• The types of companies and decision-makers you have worked with.
• Your experience closing deals and managing client relationships.
   

We're particularly interested in candidates who already have relevant industry connections and are comfortable working with a performance-based compensation model.

We’re looking for a Full Stack Developer with strong experience in .NET, React, and Microsoft Azure to join our team. The ideal candidate has a solid understanding of both frontend and backend development and is comfortable building, maintaining, and integrating scalable web applications.

You will work across the full development lifecycle, contributing to frontend interfaces, backend services, and cloud-based solutions while collaborating with the team to deliver reliable, production-ready applications.

Responsibilities

• Develop and maintain backend applications and services using .NET
• Build responsive and user-friendly frontend interfaces using React
• Design, develop, and integrate REST APIs
• Work with Microsoft Azure services and cloud-based infrastructure
• Ensure application performance, scalability, and reliability
• Collaborate with other developers and team members throughout the development process
• Participate in code reviews, debugging, testing, and technical improvements
• Follow clean code principles and development best practices

Requirements

• 3+ years of full-time professional experience as a Full Stack Developer
• Strong experience with .NET backend development
• Practical experience with React frontend development
• Hands-on experience with Microsoft Azure
• Good understanding of REST APIs and frontend/backend integration
• Experience with Git and collaborative development workflows
• Ability to troubleshoot issues and work independently

We are looking for a Python Backend Engineer to join a long-term digital healthcare project.
 

About the Project

A fast-growing platform using AI to transform healthcare, with its technology already reaching millions of patients worldwide.

The product is used internationally and continues to scale, with ongoing development of backend services, APIs, integrations, and data processing. You will work in a distributed engineering team on a long-term basis and take ownership of backend features from design to production.
 

Requirements

• 5+ years of commercial experience with Python
• Experience with modern Python web frameworks
• English — Upper-Intermediate or higher
   

Responsibilities

• Design and develop scalable Python backend services
• Build and maintain REST APIs
• Work with databases, migrations, and query optimization
• Integrate internal and third-party services
• Write unit and integration tests
• Participate in architectural decisions and code reviews
• Support production services and mentor less experienced engineers
   

We Offer

• 20 paid vacation days
• 5 paid sick days
• Laptop / monitor and all necessary equipment
• Performance review and salary review
• Long-term cooperation
• Fully remote work
• Professional development and learning opportunities

Solid Software is looking for an AI Software Architect/ Senior AI Engineer to design and deliver production-grade solutions powered by LLMs. The role requires deep expertise in architecting, building, and operating complex AI systems: RAG, agentic workflows, tool calling, evaluation frameworks, and observability platforms.

The ideal candidate pairs strong software engineering fundamentals with a track record of shipping real-world AI products. Beyond experimentation, you can design scalable, reliable, and cost-effective LLM solutions that run successfully in production, with a solid grasp of modern AI architecture patterns, prompt engineering, retrieval systems, and agent orchestration.

What will you do?
 

• Own the architecture of AI-powered services and ensure their effective integration with backend, mobile, and web applications.
• Design, build, and maintain production-grade LLM applications using modern AI frameworks and orchestration platforms.
• Lead technical design reviews and drive architectural decisions across AI services, backend systems, data pipelines, and cloud infrastructure.
• Design and implement agentic workflows involving tool use, function calling, multi-agent systems, planning, memory management, and reasoning chains.
• Design and optimize RAG architectures using vector databases, embeddings, document processing pipelines, and retrieval optimization techniques.
• Establish evaluation frameworks to assess AI quality, reliability, latency, cost, and business impact, including benchmarking and automated quality assessment.
• Implement AI observability and monitoring using tools such as Langfuse, LangSmith, OpenTelemetry, and similar platforms.
• Optimize prompts, retrieval strategies, model selection, and system architecture to improve accuracy, performance, reliability, and cost efficiency.
• Design scalable APIs and services that expose AI capabilities to internal and external applications, and deploy them on cloud platforms, primarily Google Cloud Platform (GCP).
• Collaborate with software engineers, data scientists, product managers, and domain experts to translate business requirements into practical AI solutions.
• Define AI engineering standards, best practices, and governance processes to support the development and maintenance of reliable AI systems.
• Mentor engineers working on AI initiatives and contribute to architectural decisions and technical direction.
• Document AI architectures, workflows, evaluation methodologies, and operational procedures to ensure maintainability and knowledge sharing.

Requirements:
 

• 10+ years of software engineering experience, including 5+ years building LLM-based and generative AI solutions in production.
• Upper-Intermediate English (B2 or C1) for comfortable verbal communication within an international team.
• A Master's degree in Computer Science, Artificial Intelligence, Machine Learning, Software Engineering, or a related field.
• Strong Python development experience and software engineering fundamentals.
• Hands-on experience with AI orchestration frameworks such as LangGraph, LangChain, LlamaIndex, CrewAI, or equivalent technologies.
• Practical experience designing and implementing agentic systems involving tool use, function calling, planning, memory management, and multi-agent workflows.
• Strong expertise in RAG architectures, vector databases, embeddings, prompting strategies, context management, and retrieval techniques.
• Experience with AI evaluation and observability tools such as Langfuse, LangSmith, or similar platforms, including benchmarking, monitoring, and automated quality assessment.
• Experience working with structured and unstructured data pipelines and databases, including PostgreSQL, vector databases, and document stores.
• Production deployment experience with Docker, Kubernetes, cloud platforms, and CI/CD pipelines.
• Ability to evaluate architectural trade-offs involving model performance, latency, reliability, maintainability, and cost.
• Strong communication, technical leadership, and mentoring skills, with the ability to collaborate effectively across engineering, data, and product teams.
• Experience with mobile application development or architecture is a strong advantage.

Nice to have:

• Experience working with commercial and open-source models, including OpenAI, Anthropic, Gemini, Llama, and Mistral, as well as fine-tuning techniques.
• Experience in regulated, privacy-sensitive, or high-availability environments.
• Experience integrating AI capabilities into mobile and web applications.
• Familiarity with synthetic data generation and model optimization techniques.

Why Solid Software?

• We support Ukraine; 
• A wonderful team of enthusiasts and like-minded people;
• Atmosphere of comfortable work & life balance;
• Flexible schedule and work-from-home opportunity;
• Opportunity to work on projects with different directions (web, mobile, tablet, watch, desktop);
• MacBook Pro and great tech;
• Decent compensation;
• Lack of bureaucracy;
• Compensation for professional events, sports activities;
• Corporate online parties and fun team-buildings;
• Anniversary and birthday presents.

Professional growth:

• Onboarding and mentorship program with a dedicated onboarding guide built by our team;
• Internal Career Path program from Developer to Architect that consists of knowledge areas for IT specialists, books, training sessions, and work activities;
• Corporate library with the best programming books (+ an ability to order a particular book if we don't have it);
• Professional and constant feedback.

We truly value the unique talents and skills that each individual brings to our company. As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team. 

Apply now and help us shape what comes next!

Solid Software is looking for a self-driven Software Architect to design and deliver scalable, high-quality solutions across APIs, data pipelines, cloud infrastructure, and AI services. You’ll bring deep Python expertise and enough frontend knowledge to guide Flutter development and shape client-side architecture.

What will you do?

• Own the architecture of backend services and ensure their seamless integration with mobile and web applications.
• Lead technical design reviews and make architectural decisions across backend services, frontend applications, and infrastructure.
• Design scalable, resilient, cloud-native systems that support AI-driven coaching experiences and evolving product requirements.
• Break down complex technical and business requirements into independent, manageable tasks that can be implemented and delivered incrementally.
• Collaborate with frontend developers, data scientists, and DevOps engineers to integrate backend services with applications, AI models, and cloud infrastructure.
• Provide technical leadership and mentorship to engineers across disciplines, helping maintain consistent engineering practices and architectural standards.
• Design and optimize PostgreSQL or MySQL schemas to support performance, scalability, and data integrity.
• Implement reliable database session management for high-concurrency environments, using SQLAlchemy or an equivalent ORM while ensuring thread safety.
• Apply dependency injection and modular design principles to improve code testability, maintainability, and separation of concerns.
• Identify performance bottlenecks and optimize backend services, database queries, and system architecture to improve scalability and reliability.
• Containerize backend services using Docker, orchestrate deployments with Kubernetes, and support production workloads on cloud platforms.
• Leverage Google Cloud Platform (GCP) and cloud-native technologies to deploy, operate, and scale services.
• Document APIs using OpenAPI/Swagger to support clear and consistent integration for internal and external consumers.

Requirements:

• 10+ years of experience in software engineering, including at least 5 years designing production-scale systems.
• Upper-Intermediate English (B2 or C1) for comfortable verbal communication within an international team.
• A Master's degree in Computer Science, Software Engineering, or a related field.
• Ability to evaluate architectural trade-offs involving scalability, reliability, maintainability, and cost, and make well-reasoned technical decisions.
• Strong communication, technical leadership, and mentoring skills, with the ability to collaborate effectively across engineering and product disciplines.
• Extensive Python backend development experience, including hands-on experience with Flask or FastAPI.
• Strong knowledge of SQLAlchemy or an equivalent ORM, particularly database session management for high-concurrency, thread-safe applications.
• Practical experience with dependency injection, modular architecture, and maintainable code design.
• Experience designing scalable database schemas and optimizing SQL queries for performance and data integrity.
• Production experience with Docker and Kubernetes for containerization and service orchestration.
• Hands-on experience with cloud platforms and cloud-native technologies, preferably Google Cloud Platform (GCP).
• A self-driven, detail-oriented approach to problem-solving, with the ability to work independently and make sound technical decisions with minimal supervision.
• Familiarity with Pandas and NumPy for data analytics or machine learning-related tasks.
• Experience with mobile application development or architecture is a strong advantage.

Why Solid Software?

• We support Ukraine; 
• A wonderful team of enthusiasts and like-minded people;
• Atmosphere of comfortable work & life balance;
• Flexible schedule and work-from-home opportunity;
• Opportunity to work on projects with different directions (web, mobile, tablet, watch, desktop);
• MacBook Pro and great tech;
• Decent compensation;
• Lack of bureaucracy;
• Compensation for professional events, sports activities;
• Corporate online parties and fun team-buildings;
• Anniversary and birthday presents.

Professional growth:

• Onboarding and mentorship program with a dedicated onboarding guide built by our team;
• Internal Career Path program from Developer to Architect that consists of knowledge areas for IT specialists, books, training sessions, and work activities;
• Corporate library with the best programming books (+ an ability to order a particular book if we don't have it);
• Professional and constant feedback.

We truly value the unique talents and skills that each individual brings to our company. As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team. 

Apply now and help us shape what comes next!

Solid Software is looking for a Lead Generation Specialist who is eager to learn, grow, and achieve real results.

You’ll help us identify the right prospects, build meaningful connections, experiment with different outreach approaches, and turn conversations into new business opportunities. We’re looking for someone curious, proactive, creative, ambitious, and ready to develop their lead generation skills with us.
 

What will you do? 
 

• Searching for potential leads on LinkedIn or other supporting channels;
• Building and maintaining prospect lists;
• Contacting potential leads via LinkedIn and managing follow-ups;
• Maintaining and keeping records within a CRM;
• Tracking and analyzing LinkedIn outreach results;
• Testing new approaches to improve lead generation results.

Requirements: 
 

• Up to 1 year experience with lead generation (B2B lead generation, ICP & buyer persona research, contact discovery, list building);
• Strong written and verbal English;
• Good understanding of the IT market, lead generation tactics, and best practices;
• Familiar with Apollo.io, Hunter.io, LinkedIn Sales Navigator, web scrapers, or similar platforms;
• Understanding of LinkedIn as a professional networking platform;
• Experience with data and email verification, data cleaning & hygiene;
• Confident with Excel/ Google Sheets (filtering, VLOOKUP/pivot basics) and Google Docs;
• Interested in AI and hands-on with AI tools (ChatGPT, Claude, Gemini, Grok, DeepSeek): prompt engineering, AI-driven prospecting, localized messaging;
• Willingness to learn, take relevant courses, and follow new trends;
• Ambition and strong desire to achieve results;
• Responsible and attentive approach to work, follow-ups, and CRM (KeepinCRM);
• Understanding of other outreach channels (e.g., Meta Business Suite) would be a plus.

Why Solid Software?
 

• We support Ukraine;
• A wonderful team of enthusiasts and like-minded people;
• Atmosphere of comfortable work & life balance;
• Flexible schedule and work-from-home opportunity;
• Opportunity to work on projects with different directions (web, mobile, tablet, watch, desktop);
• MacBook Pro and great tech;
• Decent compensation;
• Lack of bureaucracy;
• Compensation for professional events, sports activities;
• Corporate online parties and fun team-buildings;
• Anniversary and birthday presents.

Professional growth:
 

• Build a long-term Career Path with desired knowledge areas, training sessions, and work activities;
• Great opportunity for a candidate willing to gain their first commercial experience, but who is results-driven and ready to work hard & learn to achieve results; 
• Corporate library with best professional books (+ an ability to order a particular book if we miss it);
• Professional and constant feedback. 

We truly value the unique talents and skills that each individual brings to our company. As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team.

Apply now and help us shape what comes next!

We are looking for a Senior Python Developer who is ready to scale and grow with us.
 

If you’re passionate about clean code, scalable backend architecture, and excited to build something impactful, we’d love to meet you!
 

What will you do?
 

• Contribute to the full backend lifecycle, from architecture design to production deployment;
• Design, develop, and maintain RESTful APIs using Python, Flask, FastAPI, and SQLAlchemy;
• Implement microservices architecture with message brokers and API gateways;
• Implement authentication and authorization with industry-standard encryption and access control;
• Optimize backend services for performance and efficiency, identifying bottlenecks and implementing solutions to improve response times and resource utilization;
• Implement complex algorithms and data structures to handle data processing, operations research (OR), recommendation systems, and optimization problems;
• Deploy and scale services on GCP (Cloud Functions, Cloud Run, Kubernetes); containerize with Docker;
• Design and optimize database schemas using PostgreSQL/MySQL and integrate Pandas/NumPy for analytics and ML;
• Document API specifications using OpenAPI (formerly Swagger);
• Collaborate with frontend, data science, and DevOps teams to align backend with product goals;
• Maintain engineering standards through code reviews, documentation, and knowledge sharing.
 

Requirements:

• 7+ years of commercial experience in backend development with Python;
• Upper-Intermediate English (B2 or C1) for comfortable verbal team communication.
• Strong hands-on experience with Python, Flask, and SQLAlchemy, Pandas, NumPy;
• Proficiency with Docker and Kubernetes;
• Expertise in software architecture and design patterns, with a proven track record of solving complex technical and performance problems;
• Strong understanding of algorithmic complexity, optimization techniques, and best practices for designing efficient algorithms to solve complex problems;
• Proven ability to handle complex, loosely defined business logic and structure intricate processes cleanly;
• Solid grasp of software architecture and design patterns, with a track record of solving complex technical and performance problems;
• Autonomous in architectural decision-making, comfortable owning hard problems end to end;
• Bonus points if you’ve worked in medical or sports domains.

Why Solid Software?
 

• We support Ukraine;
• A wonderful team of enthusiasts and like-minded people;
• Atmosphere of comfortable work & life balance;
• Flexible schedule and work-from-home opportunity;
• Opportunity to work on projects with different directions (web, mobile, tablet, watch, desktop);
• MacBook Pro and great tech;
• Decent compensation;
• Lack of bureaucracy;
• Compensation for professional events, sports activities;
• Corporate online parties and fun team-buildings;
• Anniversary and birthday presents.
 

Professional growth:
 

• Onboarding and mentorship program with a dedicated onboarding guide built by our team;
• Internal Career Path program from Developer to Architect that consists of knowledge areas for IT specialists, books, training sessions, and work activities;
• Corporate library with the best programming books (+ an ability to order a particular book if we don’t have it);
• Professional and constant feedback.
 

We truly value the unique talents and skills that each individual brings to our company. As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team.
 

Apply now and help us shape what comes next!

Head of Retention / Retention Team Lead / Senior CRM Manager

About the Role

We are looking for an experienced retention leader to own and evolve our CRM and retention function end-to-end. Depending on your background and ambitions, this role can be shaped as a hands-on Senior Manager, a Team Lead, or a Head of Retention. The core mission remains the same: build a data-driven, multichannel retention engine that drives player engagement, retention, LTV, and sustainable business growth.

Key Responsibilities

Retention Strategy & Lifecycle Management

• Develop and execute the overall retention and CRM strategy across all stages of the player lifecycle.
• Drive onboarding, engagement, reactivation, churn prevention, loyalty, and VIP retention initiatives.
• Build scalable user segmentation frameworks to improve personalization and communication efficiency.
• Define and optimize bonus strategies, promotional mechanics, loyalty programs, and gamification initiatives.
• Identify growth opportunities to increase retention, ARPU, NGR, and customer lifetime value.

CRM Campaign Management

• Design, launch, and optimize multichannel CRM campaigns across Email, SMS, Push Notifications, In-App Messaging, Onsite Communications, and Messengers.
• Develop automated trigger-based communication flows based on user behavior and lifecycle stages.
• Ensure communication strategies align with brand positioning and customer expectations.
• Implement structured A/B testing methodologies and continuously improve campaign performance.

Analytics & Performance Management

• Own and monitor key retention KPIs including:
  • Retention Rate
  • Churn Rate
  • ARPU
  • NGR
  • LTV
  • CTR
  • Conversion Rate
• Analyze player behavior and campaign performance to identify optimization opportunities.
• Collaborate with BI and Data teams to define reporting requirements and actionable dashboards.
• Prepare technical specifications for CRM platform enhancements, automation initiatives, and integrations.

Team Leadership & Cross-Functional Collaboration

• Build, mentor, and develop a high-performing CRM and Retention team.
• Conduct regular 1:1 meetings, performance reviews, coaching sessions, and career development planning.
• Define team KPIs, objectives, and performance standards.
• Collaborate closely with Product, BI, VIP, Support, Marketing, Affiliate, and Platform teams to ensure alignment on retention goals and initiatives.
• Act as the key stakeholder for CRM-related projects and retention-focused product improvements.

Requirements

• 3+ years of experience in CRM, Retention, or Lifecycle Marketing within iGaming.
• Proven understanding of player lifecycle mechanics and retention strategies.
• Experience managing or mentoring team members (1+ year preferred).
• Hands-on experience with CRM platforms, automation tools, and campaign management systems.
• Strong analytical mindset with deep understanding of retention and monetization metrics.
• Experience working with Tier-1 and European GEOs.
• Ability to operate effectively in a fast-paced, growth-oriented environment.
• Excellent communication, organizational, and stakeholder management skills.
• English level: Intermediate+ or higher.

Nice to Have

• Experience managing VIP retention initiatives.
• Experience with loyalty programs and gamification systems.
• Experience launching CRM processes from scratch.
• Experience working with BI tools and advanced segmentation models.

What We Offer

• Flexible working hours and fully remote work format.
• Unlimited vacation policy and paid sick leave.
• Competitive compensation package based on experience and expertise.
• Employee referral bonus program.
• Gifts and rewards for special occasions.
• 50% reimbursement of learning and professional development expenses.
• Sports and wellness compensation program.
• Co-working space reimbursement.
• Team-building activities and corporate events.
• Supportive and collaborative international team environment.

We are looking for a professional with mandatory hands-on experience in iGaming, strong analytical skills, and the ability to independently manage product performance and drive measurable business results.

Key Responsibilities

• Own and drive the development and performance of iGaming products and brands.
• Monitor and analyze key product and financial metrics, including GGR, NGR, ARPU, ARPPU, LTV, Retention, Conversion Rate, FTD, and other relevant KPIs.
• Identify growth opportunities, develop product hypotheses, and implement data-driven improvements.
• Analyze player behavior, user journeys, conversion funnels, and monetization performance.
• Evaluate bonus mechanics, promotional campaigns, and their impact on product profitability.
• Collaborate with CRM, Retention, Marketing, Payments, Support, Analytics, and Development teams to deliver product initiatives.
• Manage and prioritize the product backlog, define requirements, and oversee implementation.
• Measure the effectiveness of product changes and their impact on business performance.
• Conduct competitor research and identify opportunities for product development across international markets.
• Take ownership of assigned product areas and ensure continuous improvement of their performance.

Requirements

• MUST HAVE: 3+ years of hands-on Product Manager / Product Owner experience specifically within the iGaming industry (Online Casino / Sportsbook).
• Previous iGaming experience is mandatory. Candidates without direct iGaming product experience will not be considered.
• Proven experience managing B2C iGaming products or brands and understanding their business models.
• Strong knowledge of iGaming product economics, including GGR, NGR, LTV, ARPU, Retention, FTD, Conversion, and bonus mechanics.
• Strong analytical skills and the ability to identify the root causes of changes in product performance.
• Experience developing product hypotheses, prioritizing initiatives, and measuring their business impact.
• Understanding of CRM, Retention, Payments, and Acquisition processes within iGaming.
• Experience collaborating with cross-functional teams and stakeholders.
• Strong ownership mindset, independence, and focus on measurable business outcomes.
• Ability to manage multiple priorities in a fast-paced product environment.

Nice to Have

• Experience managing multiple iGaming brands.
• Experience working with Tier-1 markets.
• Hands-on experience with A/B testing and product experimentation.
• Experience optimizing bonus economics, payment flows, or player retention.
• Background in fast-growing international product companies.

What We Offer

• An opportunity to join a growing international iGaming company.
• Direct influence on product strategy, brand performance, and key business metrics.
• A high level of autonomy and ownership in product decision-making.
• Exposure to international markets, including Tier-1 GEOs.
• A performance-based bonus system linked to clear and achievable KPIs after the probation period.
• Career growth opportunities toward Product Team Lead and Head of Product positions.
• The opportunity to contribute to the development of new product directions as the company scales.
• Close collaboration with experienced product leadership and cross-functional teams.

About the Role and Team

Initially, the Product Manager will be responsible for several brands within the company's portfolio.

As the product department continues to grow, the team will gradually transition toward a structure where Product Managers take ownership of specific product areas, such as Payments, Retention, or other core product functions.

This is a hands-on individual contributor role with significant responsibility and autonomy. You will work closely with cross-functional teams and report directly to the Product Team Lead.

If you have solid iGaming product experience, enjoy working with data, and want to make a real impact on business growth, we'd love to hear from you!

We're looking for a hands-on Senior/Lead Manual QA Engineer who can cover the full testing spectrum: UI, API, and AI/ML output validation. You'll be joining a project building an AI-powered document analysis platform from the ground up. The system combines a CMS backend, modern UI, and a RAG-based AI layer used for intelligent document processing and analysis.

Key Responsibilities

• Follow a phased QA approach - begin with CMS and backend testing to establish a reliable baseline of expected system behavior, then apply those insights to validate AI agent outputs effectively
• Design and execute test cases for REST APIs, covering functional correctness, edge cases, error handling, authentication, and data integrity
• Perform UI testing across core user journeys, validating layout, behavior, and integration with backend services
• Transition into AI output validation once the deterministic layers are stable - using your knowledge of business rules to identify inconsistencies, hallucinations, or degraded outputs in agent responses
• Document and maintain test cases, test plans, and bug reports in a structured and traceable way
• Participate in requirement reviews and technical discussions to identify testability gaps early
• Collaborate with the Lead Big Data/AI Engineer and AI team to understand RAG pipeline behavior, document ingestion flows, and output quality expectations
• Contribute to building reusable test assets and QA processes as the project scales

Requirements

• 4+ years of experience in manual QA, with exposure to frontend, backend and AI testing
• Solid experience with API testing using tools such as Postman, REST Client, or similar
• Experience testing web UIs and understanding of cross-browser/cross-environment considerations
• Ability to read and interpret API documentation, data schemas, and system architecture descriptions
• Hands-on experience working on projects that included AI, ML, or NLP components — particularly validating outputs that are probabilistic or context-dependent
• Familiarity with the concept of RAG (Retrieval-Augmented Generation) or LLM-based systems
• Strong analytical thinking — especially the ability to assess whether an AI response is contextually correct, not just technically non-null
• Good understanding of test documentation practices: test plans, test cases, bug reports, traceability
• Experience working in Agile/Scrum teams
• Upper-Intermediate English or higher - you'll be communicating directly with the client and cross-functional team members
• Familiarity with Palantir Foundry is a strong 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

About the Company

We are a leading research and development company, recognized as one of the largest organizations in Ukraine specializing in fine organic synthesis and the development of advanced synthetic methodologies for organic compounds. Our scientific research contributes to cutting-edge innovations in the pharmaceutical and biotechnology industries, with projects that meet international standards.

Our culture is built around professional excellence, respect, teamwork, social responsibility, care for the scientific community, and proactivity.

We are looking for an experienced Lead Monitoring Engineer (SCOM) to architect, implement, and maintain a proactive enterprise monitoring platform based on Microsoft System Center Operations Manager (SCOM) 2022. Your mission will be to build a monitoring ecosystem capable of identifying and preventing service disruptions before they impact business operations or end users.

Responsibilities

• Design, deploy, configure, and maintain Microsoft SCOM 2022, including Management Servers, Gateways, Operational Database, and Data Warehouse.
• Build and support proactive monitoring for a hybrid Microsoft infrastructure, including:
  • Windows Server 2019+
  • Microsoft Exchange (On-Premises)
  • Microsoft 365 / Office 365 services
• Configure hardware monitoring for physical servers.
• Optimize monitoring quality by:
  • Establishing performance baselines
  • Reducing alert fatigue
  • Creating synthetic transactions and health checks
• Develop and maintain custom PowerShell scripts for automation, monitoring, and custom metric collection.
• Design monitoring standards, dashboards, alerts, and reporting to improve infrastructure visibility and reliability.
• Troubleshoot performance and infrastructure issues across enterprise environments.

Required Qualifications

• 3–5 years of enterprise Windows Server administration experience.
• 1–2 years of hands-on experience with enterprise monitoring solutions, preferably:
  • Microsoft SCOM (2012 R2 / 2016 / 2019 / 2022), or
  • Strong experience with Zabbix, PRTG, or Prometheus and a solid understanding of enterprise monitoring concepts.
• Deep knowledge of Windows internals, including:
  • WMI
  • Event Viewer
  • Performance Monitor (PerfMon)
  • Windows Registry
  • Performance troubleshooting (CPU, Memory, Disk I/O, Network)
• Good understanding of Microsoft Exchange architecture, including:
  • Database Availability Groups (DAG)
  • Mailbox databases
  • Transport queues
• Strong PowerShell scripting skills for automation and custom monitoring.
• Basic Microsoft SQL Server administration, including:
  • Indexes
  • Database file placement
  • High Availability concepts

Nice to Have

• Microsoft certifications such as:
  • MCSA / MCSE (Windows Server)
  • MCSE: Cloud Platform and Infrastructure
  • MCTS: System Center Configuration/Operations Manager
• Modern Microsoft certifications:
  • Microsoft Certified: Windows Server Hybrid Administrator Associate (AZ-800 / AZ-801)
  • Microsoft 365 Certified: Administrator Expert (MS-102)
• ITIL 4 Foundation certification or knowledge of Event Management and Incident Management processes.
• Basic XML knowledge for customization of SCOM Management Packs.

What We Offer

• A unique opportunity to design and build an enterprise monitoring platform from scratch, with significant architectural ownership.
• Work in a complex, enterprise-scale Microsoft infrastructure supporting mission-critical scientific operations.
• Official employment with full social benefits and a competitive, fully transparent salary.
• 24 calendar days of paid annual leave.
• Standard 40-hour work week.
• Fully remote work environment.
• Comprehensive medical insurance.
• Access to on-site dental and massage services (where applicable).
• Challenging and meaningful technical projects.
• Continuous learning, certification, and professional development opportunities.