Jobs at Djinni

Job Description

Role Overview:
 

The Senior Full-Stack Developer position at Vertical Television involves acting as a technical pillar and the ultimate “go-to” person within the app development team. The role demands a highly independent professional with a strong frontend orientation, responsible for driving the architecture of a high-scale mobile app and operational web platforms. The developer will contribute to building the future of Vertical Television by combining cinematic storytelling with interactive, vertical-first technology, focusing on scalable application design and performance optimization.

Key Responsibilities:

• System & App Architecture: Architect, plan, and lead the development of the mobile app built with React Native and web platforms using React, ensuring a holistic and scalable system design.
• Vertical Video Feed & Playback: Own the core viewing experience featuring an infinite vertical video feed with instant time-to-first-frame, video preload/prefetch, player-instance recycling, and disciplined memory management across multiple concurrent video players.
• Technical Leadership & Mentorship: Serve as the technical expert and mentor for mid-level developers by providing guidance, conducting code reviews, and elevating engineering standards within the team.
• Standards & Reusability: adherence to coding standards, best practices, and promote a reusability-first mindset to maintain a clean, maintainable, and highly scalable codebase.
• Deep App Performance: Address complex performance challenges including app state management, native bridging, and video rendering optimizations such as player tuning, reducing frame drops, minimizing jank on scroll, and improving cold-start times.
• Monetization: Design and integrate in-app purchases, subscriptions, deep links, attribution, and user-behavior tracking end-to-end, including client SDK implementation and server-side receipt validation.
• Cross-Functional Collaboration: Work closely with Product, Design, and Backend engineering teams to deliver fast iterations of complex features in a dynamic startup environment.

Additional Expertise and Advantages:

• Experience with mobile CI/CD and release operations one of EAS, Fastlane, store submission, OTA updates (CodePush, EAS Update), and end-to-end testing.
• Background in high-growth startups or mobile entertainment products, with familiarity in vertical/short-form feed products similar to TikTok, Reels, or Shorts.
• Understanding of ad-tech and SSAI (AdMob, Google IMA) and subscription monetization modeling.
• Knowledge of DRM technologies (Widevine, FairPlay), offline downloads, and transcoding pipelines (Mux, AWS MediaConvert, AWS IVS) as beneficial skills.

Ideal Candidate Profile includes experience in the following areas: 

Streaming & vertical feed (the differentiator):

• Protocols/players shipped: HLS, LL-HLS (low-latency is the point for "TV"), DASH; react-native-video, Bitmovin, JW Player, ExoPlayer/AVPlayer, Mux, Video.js (web side).
• Vertical-feed mechanics: preload/prefetch strategy, player-instance pooling/recycling, FlashList/recycler usage, memory profiling, time-to-first-frame optimization.
• DRM (Widevine/FairPlay), ABR tuning, thumbnails/scrubbing, offline/download, CDN (CloudFront/Cloudflare/Fastly), transcoding (Mux/AWS MediaConvert/IVS).

RN architecture & performance:

• New Architecture (Fabric, TurboModules, JSI), Hermes; bare RN/CLI vs Expo (and EAS) — get their stance and why.
• Native modules written themselves (Swift/Kotlin/ObjC) — ask for a concrete bridge they built.
• State at scale (Redux Toolkit / Zustand / Jotai), Reanimated + Gesture Handler for the scroll/gesture layer, list virtualization (FlashList).

Monetization & growth plumbing:

• IAP/subscriptions: StoreKit 2, Google Play Billing, RevenueCat, server-side receipt validation.
• Ad-tech if relevant: AdMob, Google IMA, SSAI.
• Deep links/attribution: Branch, AppsFlyer/Adjust, Universal/App Links.

Analytics, quality, release:

• Product analytics: Amplitude/Mixpanel/Firebase; crash/perf: Sentry + Crashlytics, Firebase Performance.
• Testing: Jest, RN Testing Library, Detox or Maestro E2E; mobile CI/CD: EAS / Fastlane; store release management, OTA (CodePush/EAS Update).
• Auth: Cognito/Firebase Auth/Auth0, OAuth (Apple/Google), federated + biometric.

Backend/infra (scope it as secondary if FE-led):

• Node/NestJS or similar; MongoDB/Firebase as named; WebSockets/real-time for comments/live; AWS or GCP IaC (Terraform).

About the Role

We are looking for an experienced Affiliate Team Lead to drive and scale our affiliate program across multiple markets. You will be responsible for developing and executing affiliate strategies, leading a team of Affiliate Managers, building long-term partnerships, and driving sustainable growth through high-quality traffic acquisition.
 

Responsibilities

• Own and execute the affiliate strategy across target markets.
• Lead, mentor, and develop a team of Affiliate Managers (hiring, onboarding, performance management).
• Scale partner acquisition by sourcing, negotiating, and closing high-value deals.
• Oversee key affiliate accounts and support the team in managing top-tier partners.
• Analyze partner performance using Power BI or similar tools, identify growth opportunities, and optimize results.
• Define and improve commercial models (CPA, RevShare, Hybrid, Fixed Fee).
• Ensure traffic quality and compliance with partnership agreements.
• Collaborate closely with Marketing, Product, CRM, Content, and Design teams.
• Build and expand a strong network of affiliates and strategic partners.
• Monitor industry trends, competitor activities, and new business opportunities.

Requirements

• 3+ years of experience in Affiliate Marketing within the iGaming industry.
• At least 1 year of experience in a Team Lead, Lead, or Senior Affiliate role.
• Mandatory hands-on experience working with affiliate programs in one or more of the following regions: CIS, Europe, Africa, or Asia.
• Proven experience managing and developing affiliate teams.
• Strong network of affiliate partners and media buyers.
• Experience with platforms and tools such as BetB2B, Slack, Jira, Power BI, or similar.
• Deep understanding of key performance metrics, including CR, NGR, ARPU, LTV, and FTD.
• Strong leadership, negotiation, and stakeholder management skills.
• Experience structuring and negotiating high-value commercial deals.
• Upper-Intermediate English or higher.

Skills

• Strategic thinking combined with a hands-on approach.
• Strong analytical and data-driven mindset.
• Excellent communication and leadership skills.
• Ability to identify fraud risks and maintain traffic quality.
• Ability to thrive in a fast-paced and high-growth environment.

Key Objectives

• Achieve and exceed acquisition, revenue, and partnership targets.
• Scale and optimize the affiliate partner portfolio.
• Build and manage a high-performing affiliate team.
• Identify and launch new growth opportunities across target markets.
• Strengthen relationships with key partners and maximize long-term business value.

We Offer

• Competitive salary.
• Work permit support.
• 5/2 working schedule.
• Flexible start of the working day.
  
   

As a Newsletter Publishing Assistant, you’ll ensure the smooth publishing and formatting of newsletter and blog content.
This is a hands-on role focused on accuracy, coordination, and consistency — ideal for someone with a data entry or administrative background who wants to grow into marketing or content management.

You’ll start by handling publishing and coordination tasks, and gradually take ownership of multiple newsletters as you prove your reliability and marketing instincts.

🔧 Key Responsibilities

• Publish and format newsletter and blog posts according to templates and style guidelines.
• Double-check links, formatting, and visuals before publication.
• Track publishing progress and maintain organized records in spreadsheets or project tools.
• Coordinate with the Content and Analytics teams to ensure smooth post-scheduling and accuracy.
• Assist with uploading images, links, and metadata (titles, tags, categories).

📌 Requirements

• Strong attention to detail and ability to work fast without errors.
• Comfortable with repetitive posting tasks and checklists.
• Basic understanding of content formatting and publishing tools (WordPress, etc. — training provided).
• English level: C1
• Experience with spreadsheets or CMS platforms is a plus.
• Curiosity about marketing, newsletters, and digital growth.

🎓 Growth Path

After mastering publishing tasks, you’ll:

• Manage multiple newsletters independently.
• Learn marketing fundamentals — email performance, audience insights, and campaign structure.
• Grow into a Newsletter Marketing Coordinator role.

🤝 What it means to be part of our Team

Your professional and personal development:
🙋 Multinational and intercultural experience
📚 Corporate library
💪 A world-class team to work with
🎓 Growth opportunities
💻 Cutting-edge frameworks and technologies

Well-being:
💰 Competitive salary
🎳 Common team activities (football, basketball, tennis, board games, and more)
🎁 Bonuses according to the policy
💆‍♀️ 21 paid vacation days & 14 paid sick leaves
🧘 Work-life balance

Working environment:
🏢 Cozy office in Warsaw available for you whenever you need it
🥪 Coffee, tea, sweets, fruits, and more snacks

💌 Why join Media Miami

If you’re looking for comfort, this isn’t it. If you’re looking for growth, ownership, and the chance to work with people who operate at a high level - you’ll feel right at home. At Media Miami, you won’t just execute - you’ll shape, improve, and elevate everything you touch.

📱 Please make sure to include your Telegram nickname in the cover letter.

EvoPlay is an IT company that has been building an ecosystem of B2B products and services for the online gaming industry for over 10 years — including innovative gaming platforms, advanced marketing solutions, and analytical tools.
 

As we continue to grow, we are looking for a Sales Manager to join our team.

 Responsibilities:

• Actively search and attract new clients, expanding the contact base.
• Maintain relations with client, be in touch with them through messages and phone calls, identify client needs and provide optimal solutions.
• Attending international events, representing company abroad.
• Build long-term partnerships and support clients at all stages of cooperation.
• Preparing reports
• Achieve sales goals and meet KPIs.
• Organize and manage sales pipeline.

Requirements: 

• 6+ months of experience in Sales, Account Management, Affiliate Marketing, or a related field.
• Understanding of the iGaming industry will be a plus .
• English proficiency at B2+ level (for international communication).
• Strong skills in negotiation, active listening, and objection handling.
• Goal-oriented, self-motivated, and proactive.
• Ambitious to grow professionally, be a team player.

We offer:
 

• 20 working days of paid vacation annually
• 22 sick leave days
• Medical insurance
• Corporate discount program
• Access to courses, training, and a self-learning library
• Internal mobility and rotation program
• Flexible working hours (start between 8:00–11:00)
• Group discussions and one-on-one sessions with a psychologist

We are looking for a driven and results-oriented Marketing Manager to accelerate growth in the web3 industry.

What You’ll Do:

• Identify, approach, and secure new strategic partnerships with banks, financial institutions, fintech companies, and B2B clients
• Build and manage a healthy sales pipeline, negotiate, and close high-value deals
• Conduct market research and identify new business opportunities and trends in fintech
• Develop and maintain long-term relationships with key clients and stakeholders
• Collaborate closely with product and marketing teams to create compelling offerings

About you:

• 1+ year of experience in marketing/business development position, including exp. in fintech, payments, financial services or web3
• Strong negotiation and presentation skills
• Understanding of the fintech/web3 ecosystem
• Excellent English (Upper-Intermediate or higher)
• Willingness to travel and engage in active networking

Perks & Benefits:

• Competitive salary and benefits package
• Opportunity to work in a dynamic, innovative, and growing industry
• Remote work flexibility
• A collaborative and inclusive work environment
• Professional growth opportunities in a rapidly evolving sector
• Paid vacation and sick leaves

Backend AI Engineer

[Freelance, Full-time, Remote]

SNEAK PEEK

⇨ Location: Remote, GMT+0/+4

⇨ Interview process: HR Interview ⇨ Technical interview ⇨ Take-home challenge ⇨ Presentation of home challenge 

WHO ARE WE? 

At Rounds, we believe in harnessing the power of cutting-edge technology to drive business success. Our transformative, machine-learning technology identifies and optimizes mobile assets, while our team of experts, with their unparalleled human capital and business acumen, provides the strategic direction and support to turn mobile assets into profitable businesses. Together, we are revolutionizing the mobile industry. 

THE ROLE

We’re looking for a strong systems-oriented engineer with hands-on LLM experience to join our AI Innovation team. In this role, you’ll build AI systems and internal products that improve how teams work across different departments and areas in the company. The common denominator is ownership: you should be comfortable leading projects end-to-end, including clarifying needs with stakeholders, making decisions under ambiguity, and pushing through blockers when they arise.

This role is a strong fit for someone who enjoys both sides of applied AI work: full-stack engineering and practical use of LLM capabilities.

Hiring manager: Ori Nahum, AI Innovation Team Lead 

What you’ll be working on

Examples of projects you may work on:

• AI agents for code generation workflows (especially in mobile applications)
• A mobile app navigation agent
• Backend services that orchestrate LLM workflows, tool calling, and integrations with internal systems
• AI chatbot connected to internal data sources and business systems
• And other new AI-driven solutions that support different departments across the company

You’ll be expected to move between experimentation and implementation: validating ideas quickly, turning the promising ones into reliable tools, and leading projects far enough to make them useful in practice, not just technically possible.

WHAT ARE WE LOOKING FOR?

Must-have

• 5+ years experience in software development (preferably in Python, TypeScript, or mobile development).
• Ability to lead projects from idea to production, including aligning with stakeholders, driving decisions, and proactively removing blockers when needed
• Hands-on experience building LLM-based products, tools, or agents beyond toy prototypes
• Good understanding of prompt design, tool calling, orchestration, and how to make LLM systems actually useful
• Strong English communication skills

Big advantage

• Experience building internal developer tools or productivity systems
• Background in mobile development, especially native Android or iOS
• Design and implement evaluation frameworks to assess AI performance, accuracy, and reliability.
• Solid understanding of ML theory and how LLMs work under the hood, including key concepts, limitations, and trade-offs beyond the API layer
• Familiarity with cloud infrastructure / DevOps / CI-CD
• Good judgment around where AI adds value and where it doesn’t

Who will do well here

You’ll likely do well in this role if you:

• Like building practical systems, not just demos
• Take initiative without waiting for perfect specs
• Enjoy exploring new tools, but know how to separate hype from what’s actually useful
• Want the freedom to research, experiment, and then ship
• Enjoy working across different problem spaces and use cases, rather than staying in one narrow lane

INTERESTED?

Our recruitment process consists of the following steps: 

• HR interview with the recruitment manager: 45 min
• Technical interview with the AI Engineer Tech Lead & Team Lead: 1 hour
• Take-home challenge: ~ 4 hours of work
• Final Interview - take-home challenge presentation with CTO and AI Engineer Team Lead and Tech Lead: 1 hour

Due to team expansion, we are looking for an HR Generalist​ who will ensure accurate and efficient personnel administration processes, maintain HR documentation, and support employees and managers on labor-related matters.

Key Responsibilities

• Support the full cycle of employment administration processes, including hiring, internal transfers, and terminations.
• Maintain HR documentation, including the preparation and processing of orders, leave requests, transfer documents, and other personnel records.
• Provide employees with guidance on Ukrainian labor legislation and internal HR procedures.
• Ensure accurate working time tracking and timely updates to work schedules.
• Prepare and maintain annual vacation schedules.
• Inform and advise employees on new employment conditions, HR processes, and internal procedures.
• Process employee requests related to personnel administration matters.
• Participate in the improvement and optimization of administrative HR processes.

• If required, support activities related to staff schedules, organizational structure updates, workforce planning, and employee bonus systems.

   

Requirements

• 1–2 years of experience in HR administration or personnel administration.
• Good knowledge of current Ukrainian labor legislation.
• Hands-on experience in personnel administration and HR record-keeping.
• Experience with staff schedules (development and updates) will be considered an advantage.
• Experience in workforce planning based on production needs will be a plus.
• Experience with employee bonus systems (development, implementation, or improvement) will be considered an advantage.
• Previous experience in a manufacturing company or production environment will be an advantage.
• Proficiency in MS Office.
• Ability to work with large volumes of information while maintaining a high level of accuracy.

• Strong communication skills.

   

Hard Skills

• Knowledge of Ukrainian labor legislation.
• Personnel administration and HR record-keeping.
• Preparation of HR reports.

• Proficiency in MS Office.

   

Soft Skills

• Strong communication skills.
• Ability to handle sensitive HR matters appropriately and professionally.
• Attention to detail and a high level of responsibility.
• Ability to work with large volumes of information and prioritize tasks effectively.
• Analytical thinking.
• Initiative and proactivity.
• Ability to collaborate effectively with different departments.

💼 We Offer:

• Official employment.
• Stable salary above the market level.
• Military reservation for men.
• The opportunity to influence internal processes.
• Support and development in a professional environment.

Ajax Systems, an international tech company and the largest manufacturer of security systems in Europe.

We are looking for a new team member to join our System devisions as a Senior Android Developer.

The System Division is responsible for building and developing the Ajax software ecosystem. The team develops and maintains OS Malevich and the Video Management System, builds scalable cloud infrastructure, and creates client applications for multiple platforms, ensuring that all system components work together as a unified ecosystem.

The division works with Java, Kotlin, Swift, C, C++, and Python. It includes embedded, cloud, mobile, and desktop engineers who ensure the stable operation of Ajax as a single digital platform.

Required skills:

• 5+ years of experience in Android development;
• a strong familiarity with Java and Kotlin;
• good understanding of the Android ecosystem;
• familiarity with Android SDK: basic concepts like layouts and views, activities and fragments and their lifecycle, storing data;
• practical experience with Kotlin Coroutines;
• proficiency in Jetpack Compose for modern UI development;
• experience with ORM frameworks and Android Jetpack Components;
• strong understanding of code versioning tools (Git) and experience with Gradle;
• strong understanding of the full mobile development life cycle, OOP principles, design patterns;

• passion for software engineering, learning and continuous improvement.

   

Would be a plus:

• gradle knowledge, custom plugin development, build optimization, CI/CD pipelines, and release management;
• writing unit tests;
• practical experience with video streams;
• experience with MVVM/MVI patterns;
• experience with github actions;

• experience with third-party libraries, APIs (Firebase) and custom frameworks.

   

Tasks and responsibilities:

• follow high standards of software quality established in the team;
• design, build, and maintain high performance, reusable, and reliable code;
• suggest technical and functional improvements to add value to the product;

• collaborate with cross-functional teams to define, design, and ship new application features.

   

We offer:

• the opportunity to suggest and implement your own ideas that directly influence the product and its mass production;
• aplace in a fast-growing company with a motivated and professional team;competitive salary;
• medical insurance;
• corporate English classes;
• the opportunity to participate in Ajax’s internal beta-testing program for security systems;
• discounts from partner companies;

• discounts on Ajax products.

   

Ajax Systems is a Ukrainian success story that has grown into a global product. Ajax devices are trusted by more than 4.5 million end users and 330,000 PRO users in over 180 countries. The company provides comprehensive solutions to protect residential and commercial properties of all sizes. Today, Ajax portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, and comfort and automation.

We're looking for someone who owns the full sales cycle, takes deals from first contact all the way to signed contract.

What you'll do

• Own the full sales cycle from first contact to signed contract
• Qualify and close inbound leads across discovery, demo, pricing, and negotiation stages
• Build and execute outbound prospecting campaigns to generate new pipeline
• Develop and maintain relationships with potential clients in UA and EU markets
• Collaborate with marketing and delivery teams to align on messaging and cross-sell opportunities
• Track and manage pipeline in CRM, report on key sales metrics

• Represent the company in client-facing communications and negotiations in English

   

Must have

• 3+ years of hands-on B2B sales experience with real numbers to back it up
• You've run deals end-to-end, from the first call to the signed agreement, no handoffs
• Closed contracts with clients in Ukraine and/or European markets

• Strong English, you can lead a negotiation and close a deal without breaking a sweat

   

Nice to have

• Background in digital marketing, media, or ad-tech

• Experience selling software or subscription-based products

   

What we offer

• Competitive base salary plus commission on closed deals
• 100% remote with flexible working hours
• Paid time off and sick days, budget for courses and self-development, mental health support, equipment provided
• You'll work closely with the founders and have a real say in how sales is built
• Short onboarding period to get started and prove yourself

Description

We are looking for a person with basic knowledge of .NET programming who is ready to join our strong and friendly team. You will start with .NET training from our mentor to refresh and consolidate your knowledge, the next step will be training on our products, and then you will join the main team working on a real development task. This is a great opportunity to start your career in IT.

The client is the world’s leading developer of Automatic Identification and Data Collection (AIDC) software with over 30 years of experience and over 750,000 installations across 120 countries. We develop and maintain a set of Web, Windows desktop, and server applications used for receiving, inventory management, product identification, product control, and shipping. The project started in 2006 with 6 employees and grew up to 20+. Nowadays, we have a great team deeply involved in all client processes and business decisions.

Requirements

• Basic knowledge of C# & .NET
• Good understanding of OOP
• Basic knowledge of databases and SQL
• Pre-intermediate English
• Strong willingness to learn

Job responsibilities

• Design and develop components and extensions to existing modules
• Defect investigation, bug fixing, and troubleshooting
• Unit and functional testing
• Writing functional and design documentation
• Following the design and coding standards accepted in the team
• Work with the QA team in order to validate the correctness of the implementation

🔍 We’re Hiring: Manual QA Engineer (Middle / Strong Junior)

We are representing a leading European provider of secure IoT connectivity and end-to-end solutions, currently seeking a motivated and detail-oriented Manual QA Engineer to join their growing team.

🏢 About the Company

Our client helps organizations optimize operations, enhance business value, and secure critical functions through innovative and reliable IoT technology.
Their secure IoT solutions are trusted across multiple sectors — including smart buildings, alarm systems, transportation and logistics, personal safety, healthcare, construction, municipalities, schools, rescue services, and power infrastructure.

💼 Role Overview

Position: Manual QA Engineer (Middle / Strong Junior)
Type: Full-time
Location: Hybrid/office in Lviv

As a Manual QA Engineer, you’ll play a key role in ensuring the high quality and reliability of IoT software solutions by collaborating closely with development and product teams across all stages of the software lifecycle.

🧩 Responsibilities

• Perform manual testing of web and mobile applications
• Test REST APIs and web services
• Use browser developer tools (inspect element, network tab, console) for analysis and debugging
• Write and maintain clear, structured, and comprehensive test documentation
• Validate data using basic SQL queries
• Identify, document, and track defects using bug tracking tools
• Participate in Agile/Scrum development processes
• Apply performance and security testing practices
• Manage tasks independently and communicate effectively with the team

✅ Requirements

• 1.5+ years of hands-on manual QA experience
• Solid experience with web and mobile app testing
• Familiarity with API and database testing tools
• Strong analytical and problem-solving skills
• Experience writing high-quality test documentation
• Understanding of Agile methodologies
• English level: Intermediate Strong or higher

🌟 What You’ll Do

• Contribute throughout the full software development lifecycle
• Write, review, and maintain QA documentation
• Execute various types of testing to validate functionality and uncover edge cases
• Collaborate with cross-functional teams to ensure product quality at every stage
• Identify, document, and prioritize reproducible defects with actionable details
• Participate in early testing phases to prevent issues before they reach production

If you’re passionate about software quality and eager to contribute to innovative IoT solutions that make a real impact — we’d love to hear from you!

Senior Mobile / Flutter Developer

We are looking for a Senior Flutter Developer to build a mobile application for sales teams, integrated with CRM/ERP systems.

Responsibilities:

• Develop and maintain the mobile app using Flutter.
• Implement offline-first logic, local data storage, and synchronization.
• Integrate the app with CRM/ERP systems and backend APIs.
• Work with SQL storage and understand when NoSQL is appropriate.
• Implement logging, error handling, and secure data handling.
• Participate in architecture and technical decisions.

Requirements:

• 8+ years of mobile development experience.
• Strong experience with Flutter and Dart.
• Good understanding of offline-first architecture and data sync.
• Experience with SQL databases and local storage.
• Understanding of mobile app security principles.
• Experience with API integrations.
• Ability to design scalable and maintainable mobile architecture.
• Understanding of multi-tenant application logic.

Nice to have:

• Experience with CRM/ERP integrations.
• Experience with enterprise, sales, logistics, or field-service apps.
• Experience with sync conflicts and background synchronization.

Work conditions:

Remote, part-time. Candidates from Europe or Ukraine preferred.

test task +1 tech interview + final cultural fit interview

"AQA - 5+ years (expert-level proficiency in JavaScript as the primary scripting language; working knowledge of Python or Java is a strong plus.)
deep, hands-on expertise with WebdriverIO (WDIO) as the primary automation framework. Experience with additional frameworks such as Cypress, Appium, Playwright, or similar is highly valued
proficiency with API testing tools such as Postman, REST Assured, or similar"

Required Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field (or equivalent practical experience).
• 6+ years of professional experience in software quality assurance, with a strong focus on test automation.
• Expert-level proficiency in JavaScript as the primary scripting language; working knowledge of Python or Java is a strong plus.
• Deep, hands-on expertise with WebdriverIO (WDIO) as the primary automation framework. Experience with additional frameworks such as Cypress, Appium, Playwright, or similar is highly valued.
• Hands-on experience leveraging AI-powered testing tools and AI-assisted development tools to accelerate test creation, maintenance, and defect detection.
• Solid understanding of software testing methodologies across functional, regression, integration, performance, API, and end-to-end testing.
• Proficiency with API testing tools such as Postman, REST Assured, or similar.
• Experience integrating automated tests into CI/CD pipelines.
• Strong working knowledge of version control systems (Git).
• Excellent command of the English language, speaking, listening, reading, and writing, as this is an international company and English is the primary language of communication and documentation.

Preferred Qualifications

• Experience with performance and load testing tools (Locust, JMeter, k6, Gatling).
• Familiarity with containerization and cloud platforms (Docker, Kubernetes, AWS, Azure, or GCP).
• Experience testing AI/ML-based applications, including model output validation and prompt-based testing strategies.
• ISTQB or equivalent QA certification.

Nice to Have

• Familiarity with security testing fundamentals, including common vulnerabilities (e.g., OWASP Top 10), authentication/authorization testing, and secure API testing practices.
• Hands-on experience with web proxy and security testing tools such as Burp Suite, OWASP ZAP, Charles Proxy, or Fiddler for traffic inspection, request manipulation, and vulnerability discovery.

Core Competencies

• Excellent analytical and problem-solving skills with strong attention to detail.
• Proven ability to mentor junior engineers and drive quality standards across teams.
• Strong written and verbal communication skills in English, with the ability to clearly document test strategies, results, and defects, and to collaborate effectively with cross-functional, distributed teams.
• Ownership mindset and the ability to operate independently in a fast-paced, international environment.

## About Us

WindowKits is the manufacturing and solutions arm of Insulate Ukraine, one of Ukraine's fastest-growing charities working in the construction and humanitarian shelter space. With over 80,000 window installations across Ukraine's frontline communities, we design, prototype, and scale solutions that deliver immediate, measurable impact to people living in damaged and destroyed housing.

We work at the intersection of humanitarian need and engineering innovation — moving fast, building things that matter, and getting them into the field.

## The Role

We are looking for a hands-on CAD Designer and Prototyping Engineer to join our growing product team. You will take ownership of the design and development of WindowKits' product range — from initial concept through to scaled manufacturing — working across CAD modelling, rapid prototyping, and production scale-up.

This is not a desk-only role. You will have direct field experience, seeing your designs installed and tested in real conditions, and the autonomy to iterate and improve based on what you learn.

## What You'll Do

• Design and develop window and shelter components in 3D CAD (FreeCAD, SolidWorks, Fusion 360 or equivalent)
• Create detailed technical drawings and specifications for manufacturing partners
• Build and test physical prototypes using 3D printing and other rapid prototyping methods
• Collaborate with field teams to understand installation requirements and constraints
• Identify design improvements based on field feedback and performance data
• Work with suppliers and manufacturers to take designs from prototype to scaled production
• Maintain and develop a library of standard components and assemblies
• Contribute to thermal performance analysis and optimisation of window and frame designs

## What We're Looking For

• Proven experience in CAD design (any major platform)
• Comfortable working from engineering drawings and toleranced specifications
• Experience with 3D printing and rapid prototyping workflows
• Ability to translate field problems into practical, manufacturable solutions
• Strong attention to detail and a pragmatic, get-things-done mindset
• Comfortable working remotely and managing your own workload
• Interest in humanitarian or construction contexts a strong plus

## What We Offer

• Competitive salary — commensurate with experience
• Remote working — work from anywhere, with optional field visits to Ukraine
• Real impact — your designs will be installed across frontline communities at scale
• Direct field experience — see your work in action and inform the next iteration
• Growth — join a fast-growing organisation with significant expansion plans
• Mission-driven team — work alongside people building something that genuinely matters

Job Description

- 5+ years of python development (middle level, pandas, bulding APIs)

- Beginner to middle SQL
- Experience building ETLs in python
- Experience with data tools (ex.: Airflow, Grafana, Redash, Plotly, AWS Glue, AWS Athena)
- Other AWS experience
- Advanced skills in Excel
- Agile SDLC knowledge
- Detail oriented
- Data-focused
- Strong verbal/written communication, including an ability to effectively communicate with both business and technical teams
- An ability and interest in working in a fast-paced and rapidly changing environment
- Be self-driven and show ability to deliver on ambiguous projects with incomplete or dirty data

Would be a plus:

- Understanding of basic SVOD store purchase workflows

- Background in supporting data scientists in conducting data analysis / modelling to support business decision making

- Expereince with mixpanel, mparticle, youbora and similar systems

Job Responsibilities

- Design, develop, and maintain scalable data migration pipelines to transfer data between legacy and target systems while ensuring data integrity, consistency, and minimal downtime.
- Analyze source and target data models, map transformation rules, and implement ETL/ELT processes to support complex migration scenarios and business requirements.
- Perform data validation, reconciliation, and quality checks to identify discrepancies, troubleshoot migration issues, and ensure accuracy of migrated datasets.
- Collaborate with cross-functional teams including software engineers, QA, business analysts, and project managers to plan migration activities, resolve dependencies, and support release execution.
- Optimize migration performance, automate repetitive processes, and document migration workflows, technical specifications, and operational procedures to support maintainability and future enhancements.

Department/Project Description

Customer is one of the biggest companies on the market of home entertainment consumer electronics devices that strives to provide their clients with high-quality products and services.

This position collaborates with a geographically diverse team to develop, deliver, and maintain systems for digital subscription and transactional products across the Customer’s SVOD portfolio.