Jobs at Djinni

About Project: AI-Powered Jigsaw Puzzle Game
Approach: Milestone-based development, starting simple and adding complexity in phases.

Experience: Mobile developer with background in entertainment apps or games (more critical than specific tech stack). Should be highly proficient with AI-assisted development tools (Cursor, Claude, etc.) and comfortable having 90%+ of code AI-generated.

Nice to Have: Familiar with game-like animations and UI patterns for puzzle games.
Experience integrating with AI image generation APIs for real-time processing.

Tech: React Native preferred but open to other mobile frameworks.

English level - Upper intermediate
 

Skylum allows millions of photographers to make incredible images faster. Our award-winning software automates photo editing with the power of AI yet leaves all the creative control in the hands of the artist.
Join us on our mission to make photo editing enjoyable, easy, and accessible to anyone. You’ll be developing products with innovative technologies, providing value and inspiration for customers, and getting inspired in return.

 

Thanks to our incredible team of experts, we've built a collaborative space where you can constantly develop and grow in a supportive way. At the same time, we believe in the freedom to be creative. Our work schedule is flexible, and we trust you to give your best while we provide you with everything you need to make work hassle-free. Skylum is proud to be a Ukrainian company, and we stand with Ukraine not only with words but with actions. We regularly donate to various organizations to help speed up the Ukrainian victory. 

We are looking for a Lifecycle / CRM Lead, who will deliver +70% YoY revenue growth from lifecycle channels by systematically improving conversion and LTV, as well as building a cohesive lifecycle user experience across the entire Luminar ecosystem that helps users clearly understand the value of the products and naturally move between them.

Requirements:
 

Lifecycle & CRM Expertise

Deep hands-on experience building lifecycle funnels (email, push, in-app) across mobile and web products: onboarding, activation, purchase, retention, upsell, and winback. Strong understanding of how lifecycle impacts conversion, DRR, LTV, and overall channel payback.

End-to-End Growth Mindset

Experience managing the full user journey from first touchpoint to repeat purchases and upsells. Ability to view lifecycle not as a standalone channel, but as a growth function that connects acquisition, product, and monetization.

Data-Driven & Analytical Approach

Confident working with conversion, DRR, ARPU, LTV, retention, cohort analysis, and A/B testing. Ability to formulate hypotheses, evaluate impact, and make decisions based on data rather than intuition.

Revenue & Efficiency Orientation

Focus on measurable business outcomes: growing revenue from lifecycle channels, increasing LTV, and improving LTV/CAC efficiency. Clear understanding of how lifecycle can reduce effective CAC by maximizing value from existing traffic.

Systems & Structured Thinking

Ability to build lifecycle as a structured system: documentation of funnels, segments, communication rules, standards, and principles. Skilled at eliminating chaos, duplication, and cross-team or cross-product conflicts.

Ownership Mindset & Proactivity

Willingness to take full responsibility for lifecycle results, independently identify growth opportunities, initiate changes, and drive measurable impact without constant oversight.

Hands-On Approach

Ability to independently launch lifecycle flows, automations, and A/B experiments; work directly with CRM/ESP tools, data, and segmentation—especially in the early stages of the role.

Prioritization & Decision-Making

Ability to focus on initiatives with the highest potential impact, decline low-impact tasks, and balance promotional initiatives with long-term systemic lifecycle improvements.

Management & Embedded Team Collaboration

Experience working with embedded lifecycle managers or adjacent roles: setting standards and priorities, mentoring, and ensuring consistent execution quality and unified approaches.

Communication & Cross-Functional Partnership

Ability to collaborate effectively with PMM, acquisition, product, and analytics teams, and to justify lifecycle decisions through data and business impact rather than subjective preference.

AI Literacy

Practical use of AI tools for data analysis, hypothesis generation, segmentation, personalization, and optimization of lifecycle processes.

Responsibilities:

• Lifecycle audit and strategic priorities (Mobile)
• Competitive teardown: top-10 lifecycle email flows (Mobile)
• Lifecycle architecture and execution roadmap (Mobile)
• Improving core mobile funnel through lifecycle
• Launching revenue-driving lifecycle funnels
• Implementing a system of регуляр A/B testing
• Ownership of lifecycle metrics
• Lifecycle audit across the entire ecosystem
• Launching segment-based lifecycle funnels
• Measurable uplift in ARPU and cohort LTV driven by lifecycle
• +70% YoY revenue growth from lifecycle channels
• Positioning lifecycle as an ecosystem-wide growth function
• Improving LTV/CAC efficiency (target ≥ 2:1)

What we offer:

For personal growth:

• A chance to work with a strong team and a unique opportunity to make substantial contributions to our award-winning photo editing tools;
• An educational allowance to ensure that your skills stay sharp;
• English and German classes to strengthen your capabilities and widen your knowledge.

For comfort:

• A great environment where you’ll work with true professionals and amazing colleagues whom you’ll quickly call friends;
• The choice of working remotely or in our cozy office space located in Kyiv’s Podil, equipped with everything you might need for productive and comfortable work.
• The office is prepared for productive work in any conditions, including blackouts, since there are Starlinks, uninterruptible network connections, and two internet providers.
• There are also additional co-working spaces for the team in Lisbon and Warsaw.

For health:

• Medical insurance (for UA-based employees);
• Twenty-one days of paid sick leave per year;
• Paid psychological support (6 psychotherapy specialists to choose from)

For leisure:

• Twenty-one days of paid vacation per year;
• Fun times at our frequent team-building activities.

If you are looking forward to working with true professionals and simply wonderful people and create an amazing product — we are waiting for your CV!

Skylum allows millions of photographers to make incredible images faster. Our award-winning software automates photo editing with the power of AI yet leaves all the creative control in the hands of the artist.
Join us on our mission to make photo editing enjoyable, easy, and accessible to anyone. You’ll be developing products with innovative technologies, providing value and inspiration for customers, and getting inspired in return.

 

Thanks to our incredible team of experts, we've built a collaborative space where you can constantly develop and grow in a supportive way. At the same time, we believe in the freedom to be creative. Our work schedule is flexible, and we trust you to give your best while we provide you with everything you need to make work hassle-free. Skylum is proud to be a Ukrainian company, and we stand with Ukraine not only with words but with actions. We regularly donate to various organizations to help speed up the Ukrainian victory. 

We are looking for a Product Marketing Manager to drive stable and profitable revenue growth for Skylum’s mobile applications by owning the full 4P marketing matrix, delivering >160% YoY revenue growth over the next two years while maintaining a 12-month eROMI above 120%.

Requirements:
 

• Leadership – Coach and challenge teams; ready to lead the largest Marketing sub-department.
• Performance Marketing Expert – Advanced expertise in Meta, Google, TikTok, and Affiliate channels.
• Mobile Marketing Expert – Strong knowledge of mobile attribution, MMPs, and subscription monetization levers (paywall, onboarding, trials) impacting CR, ARPPU, LTV, and ROAS.
• Growth Ownership & Business Mindset – Sets goals, drives execution, and makes profitability-focused decisions based on unit economics.
• Web-to-App (W2A) Specialist – Proven track record in building and scaling web-to-app funnels.
• Analytical Skills – Solid expertise in unit economics and hands-on experience with Tableau, Amplitude, AppsFlyer, and ad platform analytics.
• Agility & Speed – Quickly adapts to market changes and aligns teams accordingly.
• Team Collaboration – Leads cross-functional initiatives and delivers measurable results.
• AI Literacy – Proficient in 2+ AI tools for marketing, research, or productivity.

Responsibilities:
 

• Maintain Blended ROAS ≥ 1.3x for the Mobile PPC channel 
• Launch at least 2 new efficient user acquisition channels (e.g., TikTok Ads, mobile CPA networks, native advertising, etc.)
• Establish a unified marketing reporting system for mobile apps across all acquisition channels and ensure its ongoing stability and reliability.
• Develop growth planning and forecasting
   
• Optimize the existing web-to-app funnel and launch additional experiments (landings/microlandings, offers, flows) tailored by GEO and segments, scaling what proves effective.
• Ensure accurate tracking and measurement of growth initiatives
• Establish and oversee tracking processes (MMP, SKAN, events, conversions) and maintain high data quality standards.
• Build an insights base and knowledge system
• Conduct competitor and user analysis, translate insights into experiment hypotheses, and maintain a structured test database with conclusions and playbooks.

What we offer:

For personal growth:

• A chance to work with a strong team and a unique opportunity to make substantial contributions to our award-winning photo editing tools;
• An educational allowance to ensure that your skills stay sharp;
• English and German classes to strengthen your capabilities and widen your knowledge.

For comfort:

• A great environment where you’ll work with true professionals and amazing colleagues whom you’ll quickly call friends;
• The choice of working remotely or in our cozy office space located in Kyiv’s Podil, equipped with everything you might need for productive and comfortable work.
• The office is prepared for productive work in any conditions, including blackouts, since there are Starlinks, uninterruptible network connections, and two internet providers.
• There are also additional co-working spaces for the team in Lisbon and Warsaw.

For health:

• Medical insurance (for UA-based employees);
• Twenty-one days of paid sick leave per year;
• Paid psychological support (6 psychotherapy specialists to choose from)

For leisure:

• Twenty-one days of paid vacation per year;
• Fun times at our frequent team-building activities.

If you are looking forward to working with true professionals and simply wonderful people and create an amazing product — we are waiting for your CV!

We’re looking for a highly experienced Senior Full-Stack Developer (60 % Frontend / 40 % Backend) who can own complex, data-driven features end-to-end. This role is ideal for a senior, independent engineer who learns quickly, thrives in a fast-paced startup environment, and takes full responsibility for delivering high-impact work.

You’ll join a small, high-impact engineering team building a modern FinOps platform used by enterprise customers worldwide. The ideal candidate enjoys creating sophisticated user interfaces, has a deep understanding of modern frontend architecture, and brings strong backend depth — feeling confident designing and implementing complex server-side logic, APIs, and data flows as part of full feature ownership.

The role requires extensive experience building data-heavy systems with large datasets, aggregations, and performance-sensitive flows.

Responsibilities

• Designing and developing advanced UI features and dashboards (React + JavaScript / TypeScript)
• Designing and implementing data-heavy features involving large datasets, aggregations, performance optimization, and complex analytical flows
• Owning features end-to-end: design, architecture, implementation, testing, deployment
• Working across the stack: primarily frontend, with meaningful backend and server-side work
  Building and maintaining server-side logic, APIs, and integrations as part of the feature lifecycle
• Collaborating closely with product, backend, and data teams on requirements and solutions
  Troubleshooting bugs and performance issues (roughly 50% of the workload over time)
• Working in cloud-native environments (AWS)
• Using AI-assisted development tools to improve productivity and quality
• Contributing to code quality, performance, scalability, and maintainability

Requirements

• 6+ years of hands-on development experience as a Full-Stack Developer, strong on both frontend (React, JavaScript/TypeScript) and backend (Python, APIs, scalable services)
• Bachelor’s in Computer Science or related field
• Strong React and JavaScript/TypeScript skills for frontend, with experience delivering complex, data-heavy UI features
• 2+ years building Python backend APIs and scalable services, handling large datasets and performance-critical flows
• Experience with databases (SQL/NoSQL, DynamoDB, BigQuery) and AWS/cloud-native environments
• Familiarity with visualizations, graphs, and interactive dashboards; experience in B2B SaaS or data-centric products
• Meaningful experience working with data-heavy systems (large datasets, aggregations, performance considerations, etc.
• Independent, detail-oriented, fast learner with a strong ownership mindset; comfortable using AI-assisted development tools

Who you are

• A senior engineer who can pick up complex tasks quickly
• Someone who learns independently and doesn’t need constant guidance
• A proactive problem-solver with strong attention to detail
• A clear communicator who works well in a remote setup
• Someone who cares about user experience, performance, and clean code
• Comfortable balancing new feature development with ongoing bug fixes

What we offer

• Competitive salary and benefits package
• Medical insurance
• Full Remote
• Collaborative and innovative work environment
• Career growth and development opportunities
• A chance to work with a talented and driven team of professionals

About the project

The company delivers a cloud cost optimization platform that helps companies track, analyze, and reduce their cloud spending. It provides full visibility into resource usage, identifies waste, and offers actionable recommendations to improve efficiency. The platform enables teams to control costs, forecast budgets, and make data-driven decisions about their cloud infrastructure.

We are looking for an UI/UX Designer to shape the user experience of Receptor.AI’s software products used by scientists and internal teams. This role is ideal for someone who enjoys designing complex web applications, turning ambiguous requirements into clear product flows, and collaborating closely with domain experts.

Collaboration format: part-time

What You’ll Do

Product and experience design

• Own end to end design for key product areas, from discovery to final UI and developer handoff.
• Translate user needs into user flows, information architecture, wireframes, and high fidelity designs.
• Design for complex workflows, including multi step processes, data heavy screens, and power user features.
• Create interactive prototypes to validate concepts quickly and align stakeholders.

Design systems and collaboration

• Build and maintain a consistent design system in Figma, including components, patterns, and documentation.
• Partner with product managers and engineers to scope solutions, define requirements, and support delivery.
• Produce clear handoff materials, including specifications, states, edge cases, and responsive behavior.

What We’re Looking For

Required

• 5+ years of experience in UI/UX or product design for web based products.
• Strong portfolio demonstrating end to end product thinking and shipped work.
• Advanced Figma skills, including component libraries, variants, and prototyping.
• Experience designing complex SaaS products, enterprise solutions, or data rich interfaces.
• Solid understanding of UX fundamentals, accessibility, and responsive design.
• Strong communication skills and ability to work cross functionally.
• English proficiency B2+.
• Curiosity and readiness to learn biology and chemistry concepts to design domain specific workflows.

Nice to Have

• Experience with scientific software, biotech, healthtech, or developer tools.
• Strong background in data visualization and designing analytical interfaces.
• Familiarity with front end constraints and handoff best practices for React based products.
• Experience creating or scaling a design system across multiple products.
• Experience working in early stage startups and shipping quickly with small teams.

About the Role

We are seeking a strong Software Developer to join our team working on Receptor AI Web, a cutting-edge molecular visualization and drug discovery platform. You will primarily work on our React/TypeScript frontend, with opportunities to contribute to the full-stack architecture.

Key Responsibilities

  - Develop and maintain frontend features using React and TypeScript

  - Work with 3D molecular visualization using NGL library

  - Integrate with RESTful APIs for chemical compound data

  - Optimize performance for large datasets and real-time rendering

  - Debug and refactor existing codebase for better maintainability

Required Qualifications

  - Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience)

  - 1.5+ year of professional software development experience

  - Strong programming skills in JavaScript/TypeScript

  - Solid understanding of React hooks and modern React patterns

  - Experience with state management solutions (Redux preferred)

  - Proficiency with version control systems (Git)

  - Good problem-solving skills and attention to detail

  - Ability to work both independently and as part of a team

  Preferred Qualifications

  - 3D Graphics/Visualization - Experience with WebGL, Three.js, or scientific visualization libraries

  - Chemistry/Biology background.

  - Data Visualization - Experience with Chart.js, D3.js, or similar libraries

  - Backend knowledge - Familiarity with Python, or API development

  - Familiarity with testing frameworks (Jest, Vitest, React Testing Library)

  - Knowledge of responsive design and cross-browser compatibility

  - Understanding of performance optimization techniques

  - Experience with scientific or data-intensive applications

About the Role

We are seeking a motivated Software Developer to join our team working on innovative bioinformatics and computational biology projects. You will primarily work on our core backend services and microservices architecture, with opportunities to contribute across the full stack.

Key Responsibilities

- Develop and maintain backend microservices using Python (FastAPI/Flask)

- Work with biological data processing pipelines and proteomics workflows

- Implement RESTful APIs and integrate with various data sources

- Collaborate on database design and optimization (PostgreSQL, SQLAlchemy)

- Participate in code reviews and contribute to technical documentation

- Debug and optimize existing codebase for performance and reliability

Required Qualifications

- Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience)

- 1+ year of professional software development experience

- Strong programming skills in Python

- Understanding of RESTful API design principles

- Experience with version control systems (Git)

- Basic knowledge of SQL and relational databases

- Good problem-solving skills and attention to detail

- Ability to work both independently and as part of a team

Preferred Qualifications

- Biology/Bioinformatics background - Understanding of molecular biology, proteomics, or computational biology concepts

- Frontend experience - Familiarity with React, TypeScript, and modern web development

- Machine Learning knowledge - Experience with ML frameworks (scikit-learn, TensorFlow, PyTorch)

- DevOps understanding - Knowledge of CI/CD pipelines, containerization, and deployment practices

- Experience with microservices architecture

- Familiarity with Docker and containerization

- Knowledge of asynchronous programming (asyncio)

- Understanding of data processing pipelines

- Experience with scientific computing libraries (NumPy, Pandas)

What We Offer

- Opportunity to work on cutting-edge bioinformatics projects

- Mentorship from experienced developers

- Cross-functional exposure (backend, frontend, ML, biology, DevOps)

- Professional development opportunities

- Collaborative and learning-focused environment

About Us

Liki24 is a marketplace of healthcare products and services. Our mission is making health affordable and accessible for everyone. We aim to deliver an exceptional customer experience, providing seamless access to various goods across multiple markets, enhancing customer satisfaction, and solidifying our place as a leading health and wellness marketplace.

We are looking for a motivated and detail-oriented specialist who is ready to grow in performance marketing and work with advertising campaigns across Ukraine and EU markets.
This role is a great fit for someone who already has initial hands-on experience with Meta Ads and wants to deepen their expertise in e-commerce marketing, analytics, and campaign optimization.

Requirements

Understanding of digital marketing principles and key metrics: CPM, CPC, CPA, LTV, ROI
Basic hands-on experience with Meta Ads (preferably in e-commerce)
Experience managing campaigns with budgets starting from 1,000 USD/month
Basic working knowledge of GA4, Google Tag Manager, Google Spreadsheets
Strong communication skills and ability to work in a team
English level B1 or higher

Responsibilities

Work with an e-commerce project across Ukraine and the EU
Set up and manage advertising campaigns in Meta Ads
Perform regular campaign optimization (targeting & creatives)
Configure and maintain Meta Pixel and Commerce Manager
Improve and monitor product feeds for Meta
Collaborate closely with the marketing team to improve performance

Would be a plus

Experience with Google Ads / Microsoft Ads / TikTok Ads
Knowledge of additional European languages
Experience using AI tools for creative generation

What We Offer

Opportunity to work in a global company with a strong social mission.
Ability to transform your ideas into impactful realities.
Chance to be part of an open-minded and innovative team.
Exceptional opportunities for personal and professional growth.
20 paid vacation days, 21 paid sick leaves, and paid national holidays.
Flexible schedule with the option to work from home.

We are making Health! If you’re excited about growth challenges, passionate about impact, and not afraid to experiment — join us!

We’re looking for an experienced Ruby on Rails Developer who enjoys building reliable, user-centric web applications and taking ownership of meaningful technical challenges. In this role, you’ll work on a mature product, collaborate closely with a skilled and supportive team, and have real influence on both technical decisions and product evolution.
 

Your Background

• Proven experience in building and maintaining web-based applications
• 5+ years of hands-on experience working with Ruby on Rails, Stimulus, Vue.js, PostgreSQL, and Linux-based servers
• A collaborative mindset - you enjoy working closely with others and contributing as part of a team
• Strong written and verbal communication skills in English and/or German
• Comfortable taking ownership and responsibility, seeing it as a chance to grow rather than a source of pressure

• Genuine interest in understanding the needs, challenges, and perspectives of both users and clients

   

Our Technical Stack

• Backend: The core of our product is built with Ruby on Rails, primarily using server-side rendering
• Frontend: Vue.js is used for selected components, with Turbo and Stimulus planned for future enhancements
• Database & Caching: PostgreSQL for persistent data storage and Redis for caching
• Infrastructure & Deployment: Applications run on Ubuntu Linux virtual machines, deployed using Capistrano, with a planned migration to Kamal 2
• Development Tools: RubyMine is the main IDE used by the team
• Version Control & Code Review: GitLab for source control, merge requests, and reviews

• Team Communication: Slack is our primary communication platform

   

What You Can Expect

• Working on and evolving a modern, user-focused product
• Improving existing functionality while contributing to new features and development initiatives
• The opportunity to influence processes, product direction, and infrastructure growth
• Participation in annual developer retreats
• Dedicated time and support for your professional growth and learning

We’re looking for a proactive, team-oriented and motivated Full Stack Engineer (WordPress / React) who will be responsible for both back-end and front-end development, including creating custom WordPress themes and plugins.

You’ll work closely with partners and stakeholders, participate in architecture decisions, and contribute to building scalable and reusable solutions from scratch.

Responsibilities

• Communication & coordination with partners and clients
• Participation in planning, architecture, and technical evaluation
• Application architecture and design
• Auditing and analyzing project documentation and specifications
• Setting up project core structure from scratch
• Maintaining and improving ongoing projects
• Developing and maintaining reusable components
• Driving an agile development process within the team
• Building responsive WordPress themes and custom plugins
• Creating custom Gutenberg blocks

Requirements

• 5+ years of commercial experience in web development
• Strong experience with WordPress (including headless WordPress)
• Solid knowledge of PHP and OOP principles
• Experience in developing custom WordPress themes and plugins
• 5+ years of experience with JavaScript (React.js, jQuery)
• Experience creating Gutenberg blocks from scratch
• Experience with Advanced Custom Fields (ACF)
• Strong knowledge of HTML, CSS3, and responsive development
• Experience working with APIs
• Good understanding of REST principles and RESTful services
• Experience with Git
• Upper-Intermediate or higher English

Nice to have

• Experience with JavaScript or PHP frameworks (Angular, Vue.js, Symfony, Laravel, etc.)
• Experience with Docker
• Experience with MVC-based WordPress frameworks (Lumberjack, Sage, Themosis, TypeRocket, etc.)

Project Description:

Our client, one of the leading Agriculture Companies, is modernising their landscape and adopting AI and innovations in their process.
We are seeking a highly skilled and innovative Python/AI Engineer to join our team. The ideal candidate will be responsible for developing cutting-edge AI solutions, creating Proof of Concepts (PoCs), and integrating Large Language Models (LLMs) into our application landscape. This role involves close collaboration with business stakeholders and R&D teams to drive AI adoption and deliver impactful results.

Responsibilities:

• Design and develop PoCs and present them to business stakeholders.
• Build and deploy innovative AI solutions using state-of-the-art models.
• Integrate LLMs into existing and new applications.
• Develop new functionalities within R&D applications..
• Promote and implement best process practices across AI development workflows.

Mandatory Skills Description:

• 6+ years of experience in AI/ML development.
• Advanced proficiency in Python.
• Strong understanding of AI frameworks (e.g., TensorFlow, PyTorch).
• Expertise in at least one LLM (e.g., GPT, Claude, LLaMA).
• Solid foundation in Data Science and statistical modeling.
• Experience with Agentic Workflows using LangChain-based agents.
• Hands-on experience with LangGraph (e.g., hackathons or MCPs).
• Deep understanding of fine-tuning techniques for LLMs.
• Hands of experience on Transformer architecture and its evolution from earlier models.

Nice-to-Have Skills Description:

Knowledge of Multiple LLMs and their adoption in commercial projects

Languages:

English: C1 Advanced

On behalf of our client, we are looking for a Senior React Frontend Engineer (Graph / Data Visualization Focus)

Responsibilities:

- Develop and optimize a modern SPA/SSR web application using React and TypeScript

- Build high-performance, interactive graph visualizations (filtering, drill-down, property panels, linked brushing)

- Visualize analytical outputs and ML-driven insights

- Implement dashboards and dynamic reporting (PDF/HTML export)

- Integrate REST/GraphQL APIs and ensure secure client-side data handling

- Implement authentication (OAuth2/OIDC) and role-based access control

- Ensure performance optimization for large-scale graph rendering (WebGL where applicable)

- Maintain CI/CD workflows, automated testing, and cross-browser compatibility

 -Work with graph databases and develop graph queries for pattern detection and analysis

- Implement applied graph algorithms and structural analysis

Requirements:

- 5+ years of experience with React in production environments

- 2+ years of hands-on experience in Graph / Data Visualization projects

- Strong TypeScript and modern JavaScript expertise

- Experience with web visualization libraries (D3, Plotly, ECharts, Vega-Lite)

- Experience with graph visualization libraries (Cytoscape.js, Sigma.js, or similar)

- Hands-on experience with graph databases and query languages

- Solid understanding of graph theory and applied graph algorithms

- Experience integrating REST or GraphQL APIs

- Experience with Git-based workflows

- Upper - Intermediate or higher level of English

Nice to Have:

- Experience with Graph ML & embeddings (node2vec, DeepWalk, GraphSAGE)

- Exposure to PyTorch Geometric or DGL

- WebGL optimization for large graph rendering

- Experience with CI/CD, containerization, and cloud deployment

Company offers:

- Long-term employment with possibilities for professional growth

- Fully remote work

- Reasonably flexible schedule

- 15 days of paid vacation

- Regular performance reviews

The Role

This is a software engineering role, not a traditional IT or DevOps position. We are looking for a Platform Engineer who loves to build products for other developers.

Your "product" is the entire developer experience (DevEx) for our R&D department. Your "customers" are all the other engineers in teams like Tenants, Assets, and Market. Your mission is to build the tools, abstractions, and self-service platforms that make our developers faster, safer, and more productive.

You won't just run RabbitMQ; you will build the "Queue (RabbitMQ) as-a-platform" that other teams consume. You won't just use an API gateway; you will build and maintain the "API gateway as-a-platform" that defines our standards. You will write high-quality, scalable code (using our company stack: TypeScript, Node.js, Nest.js) to create the internal tools that power our entire R&D organization.

While this is a remote-first role, you should be based in a CET-adjacent timezone to collaborate effectively with colleagues. You can also expect to travel for periodic in-person team gatherings.

What You'll Do

• Build 'as-a-Platform' Services: Design, code, and maintain the self-service platforms that all our engineers rely on. This specifically includes:
  • API gateway as-a-platform
  • WebSocket API as-a-platform
  • Queue (RabbitMQ) as-a-platform
  • User log processing as-a-platform
• Engineer the CI/CD Platform: Act as a core developer and maintainer of our CI/CD platform, building reusable pipelines, deployment patterns, and automation.
• Improve Developer Experience: Build the tooling and automation that defines and improves our development experience, from local setup to production.
• Infrastructure as Code (IaC): Work with the team to manage and scale our foundational AWS services (k8s, databases, cache, vault) using code (e.g., Terraform).
• Maintain Standards: Help build the tooling that defines and enforces API standards, version control policies, and best practices.

• Reliability: Participate in on-call rotations and help lead incident response procedures and post-mortems.

   

What We're Looking For

• Software Engineer First: You are a strong software engineer with 3+ years of experience, preferably with TypeScript/Node.js, who is passionate about infrastructure.
• Platform Experience: You have a proven track record of building internal tools, developer platforms, or CI/CD systems. You treat "infrastructure" as a "product."
• DevOps/Infra Skills: Deep, hands-on experience with AWS, Kubernetes, and IaC (e.g., Terraform, Pulumi).
• CI/CD Expert: Experience building and managing complex CI/CD pipelines (e.g., GitLab CI, GitHub Actions, Jenkins).
• "Customer" Empathy: You have a product mindset and genuine empathy for your "customers" (other developers) and their experience.
• Location: Based in a timezone adjacent to Central European Time (CET) for optimal team collaboration.
• Problem Solver: You are an autonomous problem-solver who can take a high-level goal (e.g., "we need a better API gateway") and own it from design to production.

Bonus Points

• Experience building custom API gateways or platform abstractions.
• Deep knowledge of our specific infra stack: RabbitMQ, PostgreSQL, Redis.

• Experience in a FinTech or high-security environment.

   

What We Offer

• Foundational Role: A unique opportunity to be a founding engineer building the entire developer platform for a high-growth FinTech.
• High-Impact: Your work will directly accelerate every other engineer in the company.
• Clear Ambition: The chance to join a company with a clear goal of becoming the #1 crypto platform in the EU.
• Greenfield Culture, Brownfield Code: A rare chance to join a new company culture with no baggage, while solving the interesting technical challenges of a mature product.
• Flexibility & Connection: A 100% remote-first role with periodic, all-expenses-paid team gatherings and a new hub in Ticino, Switzerland.
• Compensation: A competitive salary and benefits package.

We are looking for a hybrid Graph Data Scientist and Web Visualization Engineer to work across two interconnected streams: advanced graph analytics and development of a production-grade web application for interactive data exploration and stakeholder reporting.

This role combines deep graph database expertise, algorithmic thinking, and strong frontend engineering skills to deliver both analytical insights and a robust, user-facing web platform.

Role Overview
The specialist will contribute across two complementary workstreams depending on project phase and priorities.

Workstream A – Graph Analytics & Algorithms (0–50%)
 

• Explore and understand complex graph schemas using database tooling
• Develop efficient graph queries to identify patterns and relationships
• Implement graph algorithms and pattern detection (e.g., link prediction, shortest paths, structural metrics)
• Perform statistical analysis of graph structure
• Collaborate with domain experts to refine hypotheses and analytical approaches

Workstream B – Frontend Web Application (50–100%)
 

• Define and prioritize features for a usable MVP and iterative product evolution
• Architect and implement a modern SPA/SSR web application (React/Next.js, Vue/Nuxt, or similar) using TypeScript
• Build high-performance, interactive graph visualizations with property panels, filtering, search, drill-down, and linked brushing
• Visualize ML model outputs and analytical results
• Deliver dashboards, dynamic reports (PDF/HTML export), and in-app narratives
• Integrate authentication (OAuth2/OIDC) and role-based access control
• Implement logging, telemetry, and issue tracking integration
• Ensure performance optimization for large-scale graphs (WebGL where applicable)
• Maintain CI/CD, automated testing, accessibility, and cross-browser compatibility

Technical Requirements

• Hands-on experience with graph databases and query languages
• Strong understanding of graph theory and applied graph algorithms
• Modern frontend development expertise (JavaScript/TypeScript + framework)
• Experience with web visualization libraries (D3, Plotly, ECharts, Vega-Lite)
• Experience with graph visualization libraries (Cytoscape.js, Sigma.js, etc.)
• API integration (REST/GraphQL) and secure client-side data handling
• Git-based workflows and structured release management

Nice to Have

• Graph ML & embeddings (node2vec, DeepWalk, GraphSAGE)
• PyTorch Geometric / DGL exposure
• Experience with multimodal scientific data (e.g., omics, imaging)
• WebGL optimization for large graph rendering
• Experience with CI/CD, containerization, and cloud deployment

Experienced Microsoft.NET developer in building backend systems in Microsoft Azure. You will design and build services in a service oriented architecture.

What We Seek:

• Proven experience in designing and building APIs in ASP.NET (version 8.0 or higher)
• Proven experience with Entity Framework Core (version 8.0 or higher)
• Proven experience with Microsoft Azure
• At least 7 years of professional experience with C#
• At least 7 years of experience in building unit and integration tests
• Knowledge of service-oriented architecture (SOA) principles
• Knowledge of integration patterns and principles
• Knowledge of OAuth and OpenID Connect security protocols
• Adheres to SOLID principles
• At least 7 years of experience with Azure DevOps and Git

• Understanding of UML activity diagrams and sequence diagram.

   

A plus when has:

• Proven knowledge of the following Azure Platform Services; App Service, Service Bus, Key Vault, Storage (blob- and table storage), SQL Database, AI Search
• Proven knowledge of Azure DevOps yaml pipelines in combination with powershell and Azure deployment services
• Proven knowledge of T-SQL (SQL Server)
• Proven knowledge of the IDesign Method

What We Offer:

• Transparent bonus payment system
• Competitive salary with regular compensation reviews
• Opportunity to bring your ideas to life and lead the entire process
• 40-hour workweek with flexible scheduling
• Paid vacation and sick leave benefits
• Cozy office near the city center of Lviv