Jobs at Djinni

THE COMPANY

Max Joule https://maxjouletech.com/ develops and manufactures battery cells and systems for a range of industries including space, medical, mining, and defence. We closed a EUR 1.1 million seed round, we're cash positive, and we have our first commercially ready battery cell in production at our manufacturing plant in Tallinn.

We're an early-stage company run by two hands-on founders, with a growing engineering team in Estonia. Our ambition is to become a leading specialist battery manufacturer in Europe.

THE ROLE

We're opening our first presence in Ukraine, and this is the person who will build it. You'll be our technical face on the ground - testing our batteries with local manufacturers and units, troubleshooting when things don't work, and building the customer relationships that grow our presence in the market.

This is a genuinely dual role. Roughly half of it is hands-on technical work: receiving equipment, running tests, modifying and repairing hardware, feeding real-world findings back to our engineering team in Tallinn. The other half is commercial and operational: opening doors with new customers, attending industry events, and handling the practical side of getting our Ukrainian operation off the ground - including setting up the office itself.

You'll report directly to one of the founders and work closely with the Estonian engineering and manufacturing team.

WHAT YOU'LL DO

• Receive our materials and equipment in Ukraine and run testing with local manufacturers and units
• Troubleshoot technical issues on-site, including hands-on modification, soldering, and assembly
• Answer customer questions on product functionality, performance, and integration
• Support customers through deployment, testing, and operational use
• Bring customer feedback, issues, and feature requests back to our engineering team
• Proactively reach out to and build relationships with new customers and partners
• Represent us at meetings, trade fairs, and industry events
• Handle physical logistics, including moving stock and delivering parts to customer sites
• Set up and run the day-to-day operations of our Ukrainian unit, including finding our office and supporting company registration
• Travel to customer and partner locations across Ukraine

YOUR FIRST FEW MONTHS

• Get our office and operational presence in Ukraine up and running
• Support the company registration process
• Pick up conversations already underway with units and manufacturers, and move them into testing and sales
• Work with the Estonian team to establish a smooth process for shipping battery cells into Ukraine

WHAT WE'RE LOOKING FOR

Essential

• Technical education at technician level or above - practical capability matters more to us than formal qualifications
• Hands-on experience with electronics or battery systems, at cell or pack level
• Ability to read CAD drawings and electrical schematics
• Practical troubleshooting, soldering, and equipment modification skills
• Comfortable working independently, without someone looking over your shoulder
• Ukrainian at native or fluent level, and English at working proficiency

Nice to have

• Experience working with army units, or having served
• Experience building battery packs or energy storage systems
• Background in sales, business development, or account management
• Higher education in electrochemistry, electronics, or electrical systems
• Ability to produce CAD drawings and electrical schematics
• Valid driving licence
• An existing network in the Ukrainian technology or manufacturing ecosystem

WHO THRIVES HERE

Our culture is strongly engineering-driven. People are valued on what they deliver, not on their title. Everyone is expected to be flexible and do what the task requires, including practical work outside their formal remit - the founders do it too.

We're looking for someone who is proactive and self-managing, comfortable with ambiguity, curious, and happy to wear several hats at once. You'll also be the face of the company in front of customers, so being credible and professional in that setting matters.

If you have a better idea about how to do something, we want to hear it. We'd rather try it and find out than default to how things have always been done.

WHAT WE OFFER

• Flexible working - work where you want, as long as the job gets done
• Company van for deliveries and site visits
• Laptop and phone
• Life insurance
• Competitive salary
• Sales-linked performance incentive

GROWTH

This role is the beginning of something much bigger. We expect our Ukrainian office to grow substantially, and local manufacturing is a real possibility as we scale. Depending on where your strengths lie, you could grow into a country manager role here, move deeper into engineering, or transfer into a position in Estonia or wherever we open next.

24PLAY is a game development company from Ukraine, creating games and playable ads in co-development and co-production with partners worldwide.
 

Since 2019, we’ve been bringing together strong production expertise, creative talent, and a deep understanding of games to turn ideas into engaging player experiences. Today, we collaborate with partners such as Ubisoft, Papaya, Octo Games, and others - developing and launching games and playable experiences for global audiences.

As a Diia City resident, we offer employee reservation starting from the first day of employment.
 

We are currently looking for a Unity Game Developer to share our core company values:

• Creativity: We actively encourage and embrace each other’s ideas, transforming them into reality through collaboration and innovative thinking.
• Integrity: We commit to providing honest feedback and realistically assessing situations, fostering a culture of trust and transparency.
• Productivity: We strive to optimize our workflows to achieve the best possible results in the shortest timeframe, ensuring efficiency and effectiveness in our operations.
• Uncompromising Quality: Our commitment to excellence drives us to prioritize the quality of our work above all else, ensuring that we consistently deliver outstanding results.
• Healthy Lifestyle: We advocate for a healthy lifestyle and stand against harmful habits, promoting well-being and balance within our team.

We are looking for a professional for the role that requires:

• Full-time job;
• Office-based in Kyiv.

Our ideal candidate:

• At least 2 years of experience in mobile game development using Unity
• Strong proficiency in C#
• Understanding of OOP principles and commonly used development approaches
• Experience working with physics in 3D Unity projects
• Basic knowledge of Unity UI
• A passion for games!

Would Be a Plus:

• Experience in AI programming in Unity
• Experience working with advertising SDKs
• Published Unity games in the portfolio
• Experience in writing shaders or creating them using Shader Graph

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Bonus System: A unique reward system designed to motivate employees by aligning their performance with the company’s financial goals.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Events: Enjoy board games, masterclasses, corporate events, sports activities, and free English classes.
• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, cinema, and complimentary spa facilities for employees.
• 35-Hour Work Week: Reduced working hours as a benefit for experienced employees.

24PLAY is a game development company from Ukraine, creating games and playable ads in co-development and co-production with partners worldwide.
 

Since 2019, we’ve been bringing together strong production expertise, creative talent, and a deep understanding of games to turn ideas into engaging player experiences. Today, we collaborate with partners such as Ubisoft, Papaya, Octo Games, and others - developing and launching games and playable experiences for global audiences.

As a Diia City resident, we offer employee reservation starting from the first day of employment.
 

Main Responsibilities:

• Monitor HR processes and prepare regular reports (HR and Recruitment metrics).
• Own employee lifecycle: onboarding/offboarding, probation tracking, adaptation, 1:1s, assessment.
• Shape and scale corporate culture, engagement, and internal communications.
• Design and roll out HR initiatives (HR policy development, people engagement, wellbeing etc.).
• Plan HR budgets, track expenses, and optimize contracts.
• Build and maintain HR policies and process documentation; ensure accurate document flow.
• Coordinate greetings and gifts for birthdays/work anniversaries; manage recognition programs.
• Administer sick leave, time off, and vacation requests; maintain records.
• Plan and host team events.
   

From candidates for this position we expect:

• Experience as HR in IT for at least 1 year.
• Fluency in the Ukrainian language.
• English B1+
• Confident user of MS Office, Google Drive/Workspace, Slack etc.
• Organized, empathetic, proactive; excellent communication skills.
• A love of games will be a plus!
   

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Events: Enjoy board games, masterclasses, corporate events, sports activities, and free English classes.
• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, and complimentary spa facilities for employees.
   

We look forward to receiving your application!

Format: Remote, outstaff

Responsibilities

• Design, develop, and maintain scalable microservices using Node.js, NestJS, and TypeScript
• Build and optimize high-load backend services processing real-time data and serving millions of users
• Develop and optimize marketing and mass-notification pipelines, including bulk messaging campaigns for a multi-million user base
• Design and implement event-driven architectures using Kafka and other messaging technologies
• Work with ClickHouse for analytics and high-volume data processing, as well as MySQL/PostgreSQL and MongoDB
• Design and develop internal CRM solutions to support customer data management and business operations
• Ensure high performance, reliability, scalability, and fault tolerance of backend services
• Collaborate with other engineering teams to design and deliver scalable solutions

Required Qualifications

• Mandatory: proven commercial experience in the gambling/betting industry, working with high-load products serving millions of users
• 5+ years of commercial backend development experience
• Expert-level knowledge of Node.js, NestJS, and TypeScript
• Strong experience with Kafka, RabbitMQ, or similar message brokers
• Hands-on experience with ClickHouse or other big-data/analytical storage solutions
• Strong knowledge of MySQL/PostgreSQL and MongoDB
• Experience with Docker and Kubernetes
• Proven experience designing and implementing microservice and event-driven architectures
• English — Intermediate or above

Nice to Have

• Experience working with FinTech or crypto platforms
• Experience with Python (Django/Flask) and Celery
• Experience with AWS or GCP
• Previous experience working in remote or outstaffing teams

Backend / Product Engineer (Elixir-driven) — Remote (EU) | US Startup

Location: Europe (3–6h overlap with US hours)

Type: Full-time, remote (B2B contract)

Stack: Elixir, Phoenix, PostgreSQL, AWS, Oban, GraphQL/REST

About Us

We’re a fast-moving U.S. startup building real products, not slide decks. We operate like an elite, small engineering team: high ownership, high expectations, zero bureaucracy, and extremely high output.

We’re hiring a Backend/Product Engineer who can think, build, and deliver — someone who doesn’t need perfect specs and can create value even when no one assigns tasks.

You will build core systems, integrations, APIs, and internal tools that directly impact customers. This is a role for someone who wants responsibility, challenge, and growth — not a “soft-cushion corporate dev seat.”

What You’ll Do

You will operate as a true Product Engineer, not a ticket monkey:

• Design and implement backend systems, APIs, and services
• Own features end-to-end: idea → architecture → implementation → deploy
• Work closely with founders and product to define problems and solutions
• Improve architecture, observability, and reliability without waiting to be told
• Identify gaps and build tools that save us time or money
• Take responsibility for outcomes, not excuses

We move fast. We expect ownership. We expect results.

Your Background

We care more about your ability to build great systems than whether you’ve used the exact stack before.

Must-Have

• Strong backend engineering experience (any modern language)
• Solid understanding of databases, transactions, APIs, distributed systems
• Ability to work independently and ship high-quality features
• Comfortable with early-stage chaos and ambiguity
• Strong communication skills (clear, concise, proactive)
• A mindset that says: “If it’s broken, I fix it.”
• Comfortable overlapping with US hours

Nice-to-Have (or willingness to learn)

• Elixir, Phoenix, Ecto, Oban
• OTP fundamentals (GenServers, Supervisors)
• Event-driven thinking
• Fintech/payments/ledger experience
• AWS experience
• Typescript
• React native
• Tailwind/css
   

Mindset We Expect

Let’s be upfront:

This is not a role for someone who wants:

• low pressure
• slow pace
• heavy process
• “assignments” waiting for them every morning
• perfect specs
• or a 9-to-5 corporate comfort zone

This is a role for someone who:

• thrives in high-ownership environments
• enjoys solving problems without hand-holding
• does not cop out when things get tough
• treats the product like their own
• wants to build something meaningful and challenging
• understands that early-stage startups require real commitment
• wants to grow into a senior/product/lead role fast

We are building for real customers.

This requires focus, discipline, and hustle.

If you’re not comfortable with that — this isn’t for you.

If you are — you will absolutely love working with us.

Why Join Us

• Work directly with founders (no layers of management)
• Build real product that ships weekly
• Ownership of architecture and systems
• Autonomy + trust (but also expectations)
• Modern, enjoyable stack
• Competitive USD-based compensation
• A place where ambitious engineers grow fast
• Your work actually matters

Operating within the healthcare sector, this organization focuses on advancing medical technologies and solutions that enhance patient care. They specialize in developing innovative medical devices that streamline clinical trials and improve treatment accessibility. The organization collaborates with healthcare professionals to ensure that new therapies are both safe and effective. With a commitment to research and development, they aim to accelerate the adoption of their products in the healthcare market.

We are seeking a highly skilled Senior Python Engineer to lead a critical architectural transition for our client's platform. The project involves a rewrite of a web backend into a modern, scalable Python architecture. You will be responsible for designing the new backend foundation, ensuring seamless data flow, and establishing best practices for the new tech stack. Any experience with Angular is a significant plus to help bridge the gap with the frontend ecosystem.

• 5+ years of professional software engineering experience, with a strong focus on backend development.
• Expert-level proficiency in Python and its core backend frameworks (e.g., FastAPI, Django, Flask).
• Proven track record of designing, building, and scaling complex REST APIs.
• Experience working with AWS SDKs, specifically for S3 (multi-part uploads, pre-signed URLs), and a good understanding of core cloud concepts.
• Familiarity with IoT messaging patterns (MQTT) and secure communication over restricted networks is highly desirable.
• Experience integrating with authentication providers (such as Amazon Cognito, Auth0, or similar).
• Ability to write clean, maintainable, and documented code, with an understanding of how to build reusable libraries (SDKs).
• Strong team player with the ability to work independently on assigned modules while aligning with the overall architectural vision.
• Nice-to-have practical experience with Angular for building responsive, modern single-page applications (SPAs).

Job Responsibilities

• Lead the end-to-end architectural design and execution of rewriting the existing web backend into Python.
• Develop robust, highly scalable, and secure RESTful APIs using modern Python frameworks (FastAPI, Django, or Flask).
• Design and optimize database structures to support the new backend performance requirements.
• Establish and enforce code quality, testing standards, and CI/CD pipelines for the new Python environment.
• Collaborate closely with product stakeholders and frontend developers to ensure smooth integration with the existing Angular client.
• Identify and resolve potential data bottlenecks and security vulnerabilities during the migration process.

Our client is innovative manufacturer of medical devices in the United States which produces a devices and software applications.

At this project, you will have a great opportunity to be involved into the full development life cycle of medical software which is intended to help individuals by processing certain information taken from medical devices to identify health trends and to track daily activities. As additional there are opportunities to work with medical devices, in scope of end-to-end testing.

Job Description

• Minimum of 7 years of experience in software development, with a focus on designing and implementing highly scalable web applications, data pipelines, and cloud-based microservices
• Proficiency in Java programming language and related technologies. Experience with frameworks such as Spring, Hibernate, and cloud-native services is highly desirable
• Strong understanding of database concepts and experience with SQL and NoSQL databases (e.g., MySQL, DynamoDB, Redis).
• Familiarity with cloud platforms (AWS) and experience deploying applications in cloud environments is advantageous
• Experience with microservices and event-driven architectures
• Strong analytical and problem-solving skills with the ability to troubleshoot complex issues and implement effective solutions independently
• Excellent written and verbal communication skills with the ability to articulate technical concepts clearly and effectively
• Ability to work both independently and collaboratively in a fast-paced, agile environment. Strong team player with a positive attitude and a passion for technology
• Experience in leading people and teams

Job Responsibilities

• Architect, design, and develop highly scalable, reliable web scale applications, tools, and automation frameworks to meet business requirements, and contribute to overall system architecture.
• Implement cloud-based microservices leveraging event-driven architectures.
• Collaborate with cross-functional teams to design and build efficient and robust data pipelines for batch, near-real-time, and real-time processing using Java technologies.
• Optimize applications, data pipelines, and microservices for scalability, performance, and efficiency to handle large volumes of data and traffic in a cloud environment.
• Ensure adherence to coding standards, best practices, and software development methodologies. Perform code reviews and provide constructive feedback to peer team members.
• Implement monitoring and alerting solutions to ensure the reliability and availability of applications, data pipelines, and microservices.
• Participate in troubleshooting and resolution of complex production issues.
• Create and maintain technical documentation, including design documents, component/service architecture diagrams, and system documentation.
• Collaborate effectively with cross-functional teams, including product management, QA, and operations. Communicate technical concepts and solutions to both technical and non-technical stakeholders.
• Lead other engineers

YozmaTech isn’t just another tech company — we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family — you’ll feel right at home with us.

Our client is a cloud-based financial planning and analysis (FP&A) platform designed for SMBs, transforming manual monthly and quarterly reporting into automated, scalable processes.
Our solution connects to organizational systems such as ERP, CRM, HRIS, and complex Excel files, consolidating all data into a single cloud-based database. Our client automates critical financial transformations including FX conversions, eliminations, hierarchies, financial adjustments, and more while allowing end-users to continue working in Excel as they always have.
Serving primarily the US market, our client is experiencing strong and sustained growth. This is an exciting opportunity to help build a cutting-edge SaaS product at scale and shape how we deliver software in an AI-native way

We’re looking for an experienced engineer who is ready to move beyond traditional software development and take full ownership of product delivery. This is not a classic backend engineering role. As a Builder, you’ll be responsible for delivering
features from idea to production by orchestrating AI agents, making technical decisions, collaborating closely with Product, and owning the final outcome.

What makes this role different
🔹You may not write every line of code yourself, but you are accountable for all of it — the AI-generated code is your code, and its quality is your responsibility.
🔹AI agents become part of your engineering team, but you own every architectural and technical decision.
🔹You partner with Product on the what and own the how — the technical execution and delivery.
🔹Success is measured by shipping high-quality features, not by the amount of code you write.
🔹You’ll have end-to-end ownership across backend, frontend, QA, and automation while working closely with Product to bring ideas into production

Key Requirements:

🔹BSc in Computer Science or equivalent.
🔹Senior-level engineer, typically 7+ years building and shipping production software end-to-end — with the depth of experience to make sound technical calls and recognize when AI-generated output is subtly wrong.
🔹Strong Python (including Django) and system design fundamentals, with proven expertise building scalable systems on cloud architecture in a SaaS environment and the judgment to make architectural decisions and evaluate trade-offs independently.
🔹 Solid understanding of async programming, REST APIs, microservices, and testing — enough to read, review, and validate implementations, not just write them yourself.
🔹Hands-on experience with AI coding tools (Claude Code, Cursor, Codex, GitHub Copilot, or similar) and building AI-native workflows, with the ability to review, challenge, and improve AI-generated output rather than relying on it blindly.
🔹Strong hands-on experience with PostgreSQL and relational databases — proven experience configuring, managing, and optimizing large-scale databases, working with high volumes of data, and ensuring performance, scalability, and reliability in production environments.
🔹 Strong product mindset — able to balance technical and business priorities, thrive in ambiguous, fast-moving environments, and take full ownership of outcomes.
🔹 Exceptional communication skills and high proficiency in English (Upper-Intermediate or higher) — you’ll partner directly
with Product and own the technical execution.

Will be plus:

🔹Understanding of CI/CD pipelines and IaC tools (Terraform, Helm) — enough to decide what the system needs and evaluate what an agent produces.
🔹Familiarity with Celery orchestration, event-driven architectures, or streaming frameworks (RabbitMQ).
🔹Exposure to modern frontend, QA automation, or full-stack environments.
🔹Experience working in product companies or startups.

What you will do:

🔹Own features end-to-end, from initial requirements to production and monitoring.
🔹Partner with Product to turn requirements into clear execution plans — Product owns the what, you own the how.
🔹Orchestrate AI agents across development, QA, and automation.
🔹Review, validate, and improve AI-generated code and solutions.
🔹Make architectural decisions, define data models, and optimize system performance.
🔹Ensure high quality throughout the entire delivery lifecycle.
🔹Own a feature area while contributing across other areas when needed.
🔹Collaborate directly with engineering and product teams to continuously improve delivery

Interview stages:

🔹HR Interview;
🔹Background interview — 1 hour
🔹Design interview — 1 hour
🔹Technical interview — 1.5 hours
🔹Interview with VP R&D (optional);
🔹References;
🔹Offer.

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products — and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.

From day one, you’ll get:

🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer. You’ll always know what project you’re joining — and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Requirements

* 2+ years of experience buying traffic for the Dating vertical.

* Strong experience with Native Ads platforms.

* Proven record of profitable campaign scaling.

* Excellent understanding of CPL, EPC, CTR, CR, ROI, ROAS, LTV, and other performance metrics.

* Experience with tracking platforms such as Voluum, Binom, RedTrack, Keitaro, or similar.

* Experience with landing page testing and funnel optimization.

* Strong analytical skills and data-driven decision making.

* Ability to work independently and take ownership of results.

* English level: Intermediate or higher.

* Analytical mindset with strong attention to detail.

* Results-driven and performance-oriented.

* Proactive and self-motivated.

* Strong problem-solving and decision-making skills.

* Ability to work independently and take ownership of campaigns.

* Curious and eager to test new ideas and strategies.

* Strong communication and collaboration skills.

* Data-driven approach to optimization and scaling.

Responsibilities

* Launch, optimize, and scale Native Ads campaigns for the Dating vertical.

* Manage campaigns across native advertising platforms (Taboola, Outbrain, Revcontent, etc.).

* Analyze campaign performance and optimize towards CPL, ROI, ROAS, and other KPIs.

* Develop testing strategies for creatives, landing pages, angles, and audiences.

* Work closely with design tools, AI tools, and developers to improve campaign performance.

* Monitor traffic quality, conversion rates, and user behavior.

* Identify new traffic sources and scaling opportunities.

* Track competitors and market trends.

* Prepare regular performance reports and actionable insights.

Requirements

1+ years of experience in quality assurance of Web & Mobile applications, Slots
 — Understanding of the development processes and software life cycle
 — Good knowledge of different testing methods, techniques, and types
 — Experience in discovering showstopper defects and find reproduction steps to crashes
 — Solid exploratory testing skills and knowledge to apply the right level of testing for some specific features
 — Ability to write QA documentation — Test cases, Checklists
— Experience with Figma, Browserstack, Chrome DevTools, Swagger, Postman
 — Experience with test management tools (e.g. TestRail or others)
 — Experience with bug tracking system (JIRA or other)
 — Experience with Agile development framework
 — Good communication skills


Responsibilities
 

• Conduct functional testing of Web and Mobile application, including both GUI and API tests
• Design/maintain and execute test cases/checklists
• Report defects and working with the team to resolve them 
• Provide defects root cause analysis
• Actively collaborating with developers and business stakeholders to clarify requirements

• Work closely with all scrum teams/product owners to make sure each release meets high-quality standards

   

Working Conditions

• Challenging and exciting tasks, and all the needed tools to achieve them.
• A real opportunity for professional growth in a team of professionals.
• 21 days of vacation, 5 flexible days for your needs, 15 sick leave days.
• National holidays according to the official calendar.
• Individual benefit limit to support your health and wellness needs.
• Annual bonus based on company and individual performance results.

We work with iGaming operators of all sizes to help them expand into new markets or strengthen their existing brands. As a casino software company, we provide solutions that help build outstanding brands and achieve business goals. Now, we are looking for a Senior DevOps Engineer to join our team.
 
What will be your responsibilities:
 

• Design, build, and optimize high-load, highly available server-side platforms (Nginx, PHP-FPM, MySQL, Redis, message queues).
•  • Architect and maintain Kubernetes-based platforms and containerized workloads (Docker, Helm, GitOps).
•  • Design and operate secure network infrastructure:
•  – firewalls (iptables, UFW, security groups, NACLs)
•  – reverse proxies and L7/L4 load balancers
•  • Implement DDoS protection and WAF strategies (Cloudflare, rate-limiting, bot protection).
•  • Build and maintain observability stack:
•  – metrics (VictoriaMetrics, Prometheus)
•  – APM (New Relic, OpenTelemetry)
•  – centralized logging and alerting
•  • Design, implement and continuously improve CI/CD pipelines (Jenkins, GitHub Actions).
•  • Automate infrastructure and platform lifecycle using IaC and configuration management.
•  • Participate in architecture design, reliability engineering and capacity planning.
•  • Ensure security, compliance and audit readiness (PCI DSS, secrets management, access control).

 
What we expect from you:
 

• Strong hands-on Linux expertise (Debian, Ubuntu, systemd, networking, performance tuning).
• • Deep experience with AWS:
•  – compute (EC2, ASG, EKS)
•  – networking (VPC, LB, peering)
•  – managed databases (RDS Aurora)
•  – messaging (SQS, Kafka).
•  • Strong database operations knowledge: MySQL HA, replication, backup.
•  • Production experience with Kubernetes (cluster architecture, HA, upgrades, disaster recovery).
•  • Advanced CI/CD experience: Jenkins, GitHub Actions, GitOps practices.
•  • Strong Cloudflare expertise: DNS, CDN, WAF, DDoS protection.
•  • Infrastructure as Code: Terraform (mandatory), Ansible (configuration and automation).
•  • Scripting and automation in Bash and Python.
•  • Solid understanding of networking and security fundamentals (TLS, IAM, VPN, firewalling, zero-trust).
•  • Experience working in regulated environments or with security standards (PCI DSS is a plus).

 
What we offer:
 

We believe that a happy team builds the best products. Here is how we support you:
 

• Remote & Flexible: Work from anywhere. Our core hours are 10:00 to 18:00 (Kyiv time), Mon-Fri.
• Financial Stability: Timely payment for compensation for services
• Personal Equipment Policy: equipment are provided for use to ensure comfortable and efficient work.
• Knowledge Sharing: We regularly gather to discuss new trends, share insights, and elevate one another.
• Community: At NuxGame, you will work in a team of like-minded people who are ready to support, inspire, and tackle complex challenges together.
• Creative Freedom: We encourage initiative. With us, you have the freedom of professional expression and the space to implement your ideas.
• Time-off Policy: 24 vacation days per year + 5 sick days (without medical confirmation).
• Atmosphere: A friendly environment focused on results and mutual respect, free from unnecessary bureaucracy and pressure.

We believe in unlocking the inner potential of each team member within an open and democratic culture.

Waiting for you on our team!

We are looking for an experienced Data Engineer to design and maintain robust data infrastructure across our systems. In this role, you will be responsible for building scalable data pipelines, ensuring data integrity, and integrating third-party data sources. Your primary focus will be to enable efficient data flow and support analytical capabilities across the organization. You will also contribute to the development of our data architecture, implement best engineering practices, and collaborate closely with cross-functional teams to turn raw data into actionable insights.

Requirements

• 3+ years of commercial experience in Data Engineering
• Experience gathering business requirements and communicating with stakeholders
• Strong knowledge of Data Warehouse (DWH) architecture and principles
• Hands-on experience designing data warehouses and building ETL pipelines
• Deep practical experience with Python
• Hands-on experience in one or more of the following areas: data processing using PySpark, Apache Spark, Pandas, or similar frameworks; data scraping; integration of third-party data sources and APIs
• Proficiency in SQL and relational databases such as PostgreSQL and MySQL
• Hands-on experience with column-oriented databases such ClickHouse, Snowflake, Cassandra, BigQuery (many tables with millions of records and above each)
• Solid understanding of software design patterns, algorithms, and data structures
• Intermediate English proficiency

Will be a plus

• Experience with messaging platforms such as RabbitMQ or Kafka
• Familiarity with DataOps practices and data pipeline automation
• Familiarity with CI/CD pipelines and Kubernetes environments
• Background in FinTech or Trading domains

Responsibilities

• Communicate with technical and non-technical stakeholders to gather and clarify business requirements
• Review and analyze data and business logic to ensure consistency, accuracy, and reliability
• Design, implement, and maintain data pipelines for efficient and scalable data processing
• Integrate, maintain, and support data solutions and third-party data sources
• Research and evaluate third-party tools, services, and components for potential use
• Follow engineering best practices, including code reviews, testing, refactoring, and continuous delivery
• Design, optimize, and maintain data storage solutions

What we offer:

• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)

Responsibilities:

- Full-stack development (frontend + backend) on PHP Laravel

- Feature development per the roadmap

- Bug fixing

- Unit and integration tests

- Building new services for the Transformation Squad

- Code review, estimation, and sprint planning

- Collaboration with QA, DevOps, Tech Lead, and Product Owner

Requirements:

- 4+ years of commercial PHP experience, 3+ years with Laravel

- Fullstack development experience

- Strong MySQL knowledge

- REST API experience

- Understanding of clean code, SOLID principles, and design patterns

- English B1+

Nice to have:

- Couchbase/Redis/MongoDB

- RabbitMQ/Pub-Sub event-driven architecture

- GCP

- Monolith-to-microservices transition experience

- E-commerce/marketplace experience

- Frontend frameworks on Laravel (Vue.js, Livewire)

We're looking for someone who combines a creative strategist and a user acquisition lead — the owner of user acquisition who builds creatives that actually work and personally drives their scaling on Meta Ads. This isn't an execution role inside a ready-made structure. We're looking for someone ready to build the UA function from the ground up into a real system, make decisions on both the numbers and the content, influence business results, and grow together with the product.

Role context:

Product: a digital product for a business audience (details shared at the interview stage).

Geo: Tier-1 — US, Canada, and others.

Channels: Meta Ads (primary). 

Funnels: Web-to-Web and Web-to-App — the funnel is already built and working, no need to create it from scratch.

Spend: a significant monthly budget with an active scaling plan (numbers shared at the interview).

Role split — 60/40:

• 60% Creative: research on competitors, audiences, spy tools; generating ideas and hooks; briefing designers/AI production; analyzing why a creative worked or didn't.
• 40% User acquisition & analysis: launching campaigns, reading the numbers, deciding what to scale and what to kill.

Team philosophy: a small, effective team with no bloated headcount — no juniors, only self-sufficient, strong people.

Zero bureaucracy and zero micromanagement: decisions are made fast, we work for results, not process.

Creatives are produced through an AI pipeline (static/video generation, AI avatars) — you own and run it yourself. This person needs to work hands-on with tools and systems, not "manage vendors."

Compensation:

Base + % of spend with a KPI gate:

• Base salary range — $2,500–4,000 to start (final number negotiable, depending on level).
• Bonus: 2% of monthly spend up to $100k + 2.5% on everything above $100k — no cap: the more you scale, the more you earn.
• Bonus is paid when average monthly CPA is ≤ target cap and early cohort re-bill is at or above the norm (a quality-of-traffic safeguard).
• CPA exceeds cap by up to 15% → bonus rate ×0.5; more than 15% → no bonus for that month.
• Everything is calculated from two numbers (spend + CPA); you see the calculation base in the dashboard.
• Base salary review after 6 months based on results.

Equity: after 12 months of collaboration, based on results — the opportunity to receive a share/option in the product. This is a level of partnership that corporate structures simply don't offer.

Fully remote, no office ties!

A working funnel and product — not a "maybe it'll take off" startup lottery: the funnel is built, there are sales, the job is to systematize and scale.

AI-first approach: creative production runs on an AI pipeline, with budget for tools and freedom to experiment with the stack.

No bureaucracy: direct access to the founder, decisions made within a day, no approvals through five layers of management.

What you'll be responsible for:

• Researching competitors, audiences, and spy tools to generate ideas and hooks. 

• Briefing designers and AI production with high-quality creative requirements. 

• Implementing and developing AI tools in creative production (static/video generation, AI avatars). 

• Building and evolving a creative testing system. 

• Managing Meta Ads campaigns for Tier-1 markets (US, Canada, and others). 

• Forming hypotheses, analyzing test results, and scaling winning creative + targeting combinations. 

• Analyzing campaign performance: CPA, ROAS, cohort analytics, and key business metrics. 

• Scaling ad campaigns without losing efficiency. 

• Contributing to the development of the product's creative and marketing strategy.

What we're looking for:

• AT LEAST 2 years of experience as a User Acquisition Manager or Creative Strategist with a performance focus. 

• Experience working at product companies with a strong performance culture. 

• Hands-on experience managing budgets of $50,000+ per month on Meta Ads. 

• Experience working with Tier-1 markets. 

• Understanding of Web-to-Web and/or Web-to-App funnels. 

• A strong feel for creative: understanding hooks, trends, and why something resonates with an audience. 

• Experience building creative testing processes and making data-driven decisions. 

• Hands-on experience briefing designers and working with AI creative generation tools. 

• Strong analytical skills and systems thinking. 

• Self-driven, with ownership of results.

Nice to have:

• Experience with AppsFlyer, Adjust, AEM, CAPI. 

• Experience with spy tools (AdSpy, PiPiADS, Foreplay, etc.). 

• Experience scaling ad budgets 2–3x while maintaining target metrics.

• Experience with Google Ads or TikTok Ads.

What we offer:

• A hybrid role with a high level of autonomy and influence over the business — on both creative and numbers. 

• Base salary of $2,500–4,000 (depending on experience). 

• A bonus system tied to results and scaling. 

• The opportunity for a compensation review based on performance. 

• A path to equity in the product after a successful collaboration. 

• Fully remote work format. 

• A working product and an already-built sales funnel. 

• An AI-first approach and budget for modern tools. 

• Fast decision-making with no unnecessary bureaucracy.

If you're excited not just to run campaigns or just to make creatives, but to combine both and build a system that scales the product — I'd love to talk.

We are looking for a Senior Manual QA Engineer (Desktop macOS) to join our PDF Expert team. You’ll help ensure the quality and reliability of a product used by millions of people, working closely with developers and the product team to test new features and improve the overall user experience.

What you'll do:

• Own end-to-end QA for PDF Expert iOS/Mac/Web releases - plan and run release testing so every version ships on time, bug-free in covered scenarios.
• Build and maintain test plans, test runs, and test cases in QA Sphere covering the app's key user flows, keeping them current to avoid hotfixes.
• Drive post-release quality - monitor customer issues (Helpspot) and crashes (AppCenter), triage and close resolutions in Jira.
• Ensure PDF Expert's key dependencies - pdfexpert.com and the checkout flow - work as expected for customers.
• Help maintain the quality bar for AI-powered features in the app.
• Partner with Product, Design, and Engineering across planning, grooming, and design reviews, surfacing risks early and contributing to strategy.
• Drive continuous improvement of QA processes by reviewing teammates' test cases/runs and proposing improvements.

About you:

• 2+ years of hands-on manual QA experience, ideally with native mobile/desktop apps (iOS/macOS).
• Strong test design skills - writing clear test plans, test cases, and test runs (experience with QA Sphere or similar tools is a plus).
• Solid grounding in QA fundamentals: functional, UI/UX, regression, and localization testing.
• Proven experience owning release testing and sign-off before shipping to customers.
• Practical experience with Jira (or similar) for tracking, prioritizing, and closing bugs.
• Strong attention to detail combined with the ability to estimate testing effort accurately.
• English at B2 level or higher, for clear collaboration with Product, Design, and Dev.

Would be a plus:

• Experience testing subscription, checkout, or in-app purchase flows, ideally with Stripe or PayPal.
• Familiarity with crash-reporting/analytics tools (e.g., Firebase) and customer support platforms (e.g., Helpspot).
• Basic understanding of security and privacy testing principles.
• Exposure to testing AI-powered features or LLM-based functionality.
• Familiarity with Figma or similar tools for reviewing designs.
• Experience testing the same product across multiple platforms (iOS, macOS, Web).
• Experience reviewing or mentoring on test cases/test runs written by other QA engineers.

What you will get at Readdle:

• Customer-centric culture. We put our users at the heart of everything we do. Every team member has the opportunity to engage directly with customers, gaining insights that shape meaningful, delightful experiences for millions worldwide.
• Relentless growth. We’re committed to mastery in our craft. We take ownership of our work, decisions, and outcomes, and we see feedback as a catalyst for growth. Every challenge is an opportunity to learn, evolve, and raise the bar.
• Exceptional people, exceptional team. Our greatest strength is our people. We care deeply about each other, work transparently, and celebrate collective success. Together, we build an environment where everyone can do their best work and grow beyond their potential.
• Real impact. We design products that truly matter. Our focus is on delivering tangible value, simplifying complexity, pushing boundaries, and continuously improving how we build and deliver solutions to our users.
• Culture of innovation. We embrace curiosity and creativity in everything we do. Fresh ideas are not just welcomed, they’re expected, celebrated, and turned into real innovations that shape the future of our products and company.