Jobs at Djinni

Focus: HubSpot, Clay, AI/LLM, Data & Sales Automation
Format: Part-time → potential full-time
Location: EU/EEA or UK preferred
English: В2\С1

We’re looking for a Senior Automation & AI Implementation Engineer to build and maintain automation, CRM, data enrichment, and AI-powered solutions for a long-term European B2B project.

This is not a purely no-code role. You should be able to take a business requirement, design the technical solution, choose the right tools, estimate effort/costs, and implement it end-to-end.

What you’ll do

• Design and implement automation architecture.
• Build workflows around HubSpot and Clay.
• Integrate APIs, SaaS tools, databases, and AI models.
• Build scraping, enrichment, matching, and data synchronization pipelines.
• Implement HubSpot workflows, sequences, triggers, and alerts.
• Use LLMs for enrichment, classification, research, and data processing.
• Estimate implementation effort and ongoing API/SaaS/AI costs.
• Troubleshoot integrations and optimize reliability and scalability.

• Create technical documentation and SOPs.

   

Must-have

• Strong hands-on HubSpot experience: workflows, sequences, CRM objects/properties, APIs, integrations.
• Strong practical Clay experience: enrichment, waterfall enrichment, Claygent, webhooks, APIs, credit optimization.
• REST APIs, webhooks, HTTP, JSON, SaaS integrations.
• Web scraping, data enrichment, entity matching/deduplication.
• Practical LLM integration experience (OpenAI, Claude, or similar).

• Ability to independently design technical solutions, not just implement predefined workflows.

   

Nice to have

• Apify / Browse AI.
• n8n, Make, Zapier.
• Python / JavaScript.
• Smartlead / Instantly and outbound infrastructure.
• B2B sales intelligence and data providers.
• European public/company data sources.

What’s In It for You?

• Career Growth — Opportunities to develop and advance.
• Performance Reviews — Regular feedback and support.
• Work Anniversaries — Special gifts to celebrate milestones.
• Flexible Work — Hybrid or remote (Lviv office available).
• Mentorship — Guidance from experienced professionals.
• Accounting Support — We handle the paperwork.
• Paid Time Off — 18 vacation days + 5 sick days per year.
• Extra Leave — 10 additional days off annually.
• Free Office Lunches — Enjoy meals on us.
• Team Events — Gatherings, gifts, and a welcoming atmosphere

Join a team building the infrastructure behind autonomous driving technology. We run high-performance computing environments for machine learning, and we're looking for a Linux engineer who enjoys keeping complex systems fast, stable, and secure.

You don't need to tick every box below — if you're a strong Linux person excited to grow into HPC, we'd love to hear from you.

What you'll do:

• Keep our Linux infrastructure running smoothly — servers, web services, ERP, mail, LDAP, messaging
• Work with HPC clusters for machine learning workloads (Slurm, Ceph — or similar tools you'll pick up)
• Automate infrastructure and provisioning with Ansible
• Keep our distributed systems stable, fast, and secure

What we're looking for:

• Solid hands-on Linux administration (Ubuntu / Debian preferred)
• Comfort working in C++-based environments (you don't need to be a C++ developer)
• Some experience with — or genuine interest in — HPC, job schedulers (Slurm), and distributed storage (Ceph)
• Familiarity with infrastructure automation (Ansible or similar)
• A good grasp of networking and security basics

Nice to have:

• Python, Rust, or CUDA
• Low-level Linux / kernel knowledge
• Web or backend background

What's in it for you:

• Work at the cutting edge of autonomous driving
• Flexible working hours
• Fast-moving engineering culture
• Competitive pay + stock options
• Fully remote within Germany

We are looking for a User Acquisition Manager (In-app Networks). This is an opportunity to take ownership of one of the user acquisition channels for one of our flagship, fast-growing products. You will be responsible for launching and scaling campaigns across leading in-app advertising networks, running your own experiments, and shaping the channel's growth strategy. This role is for someone who wants to do more than just manage campaigns—it’s about influencing the direction of the channel, making data-driven decisions, and seeing the direct impact of your work.

You will join a strong User Acquisition team with well-established processes, deep domain expertise, and a collaborative knowledge-sharing culture. You'll work closely with experienced creative marketers, analysts, and designers to rapidly validate hypotheses, identify winning approaches, and scale successful strategies. We give our team the freedom to experiment and grow what works, without artificial limitations on budgets or technical capabilities, so you'll have everything you need to maximize your impact

About the product: We are building one of the most powerful live-streaming platforms, already connecting 400K+ monthly active users through live events, interactive video chats, and real-time community experiences. Our mission is bold: bring joy, fight loneliness, and deliver safe, ad-free entertainment that keeps people coming back. This is a complex, fast-moving space, and we love it that way! So, you will join a passionate, expert team tackling everything from scaling AI-powered recommendations to launching high-impact, data-driven features that boost monetization and engagement. Every idea counts here, and every release reaches a massive global audience. We are now expanding into Arab countries and Europe, enhancing content quality, and rolling out new features to keep users hooked. We are among the Top 5 streaming products in the US and rank in the Top 10 worldwide. Our next milestone: break into the global Top 5, and we are moving fast to make it happen. Are you in?

In this role, you will

• Launch and manage advertising campaigns across ad networks (AppLovin, Moloco, Mintegral, Unity Ads, etc), where we operate as an official partner
• Monitor and optimize campaigns daily against key metrics (CPA, CPI, IPM, ROAS, Retention)
• Own your channel strategy end-to-end: design your own testing structure for creatives, audiences, and bidding strategies, focused primarily on Tier-1 markets (US, Western Europe)
• Maintain campaign reporting and prepare regular performance reports
• Communicate directly with network account managers on launches, optimization, creative moderation, and technical issues
• Collaborate with the Creative team to request and provide feedback on creatives
• Report on results in team syncs and drive your own experiments with real ownership of outcomes

It’s all about you

• 1+ years of hands-on experience in performance marketing for mobile apps, personally launching and managing campaigns (not only through a managed-service setup)
• Practical, hands-on experience with at least one of the networks: AppLovin, Moloco, Mintegral, Unity Ads, at a meaningful spend level (not just small test launches)
• Experience working with monthly budgets from $100,000
• Understanding of programmatic/ad network buying principles (bidding, auctions, optimization events)
• Solid grasp of core performance metrics (CPA, CPI, CTR, CR, ROAS, IPM, LTV)
• Confident with Excel/Google Sheets for data work
• English at Intermediate (B1+) level for working with network interfaces and communicating with account managers
• Attention to detail and discipline in reporting and campaign structure

Would be a plus

• Basic SQL knowledge or experience with BI tools (Tableau, AppsFlyer)
• Understanding of MMP tools (AppsFlyer/Adjust) and attribution principles
• Interest in automating routine processes (reporting, monitoring) using AI tools

What we offer

Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Maternity Recovery Support Allowance
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
   

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule 
• Modern equipment or depreciation of your own tools
   

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
   

Hiring process

• Intro call
• Technical interview
• Interview with Hiring Manager
• Bar raiser interview
• Reference check
• Offer

Embrox Solutions is a hardware & software product engineering company with offices in Lviv, Ukraine and Tallinn, Estonia. We design and build connected products — from smart home devices and fitness equipment to healthcare and energy solutions — that end up in real hospitals, gyms, homes, and studios worldwide. Our teams cover the full product cycle: embedded firmware, hardware design, mobile/web apps, and cloud connectivity.

We’re looking for a proactive Manual QA Engineer (Junior level) to join our QA team and own the testing of our IoT products end-to-end — the physical device, its firmware, the companion app, and the cloud layer that connects them.

(Please note: we consider candidates from Lviv only, office-based role.)

Necessary skills and qualifications:

• 1-2 years of experience in manual QA (software and/or hardware)
• Solid understanding of QA fundamentals: test case design, test plans, bug lifecycle, reporting
• Experience testing physical devices/hardware integrations, or strong motivation to grow into hardware testing
• Conceptual understanding of embedded systems and connectivity protocols (BLE, Wi-Fi, Zigbee, MQTT)
• Experience with bug tracking and test management tools (Jira, TestRail or similar)
• High attention to detail and comfort working with test benches and lab equipment
• Intermediate+ English (team and client communication)
• Readiness to work full-time from the Lviv office

Would be a plus:

• Experience testing IoT / connected devices, wearables, or smart home products
• Familiarity with basic electronics and lab tools (multimeter, power supply, oscilloscope)
• Experience with API testing (Postman)
• Basic scripting for test automation (Python)
• Understanding of hardware communication protocols: I2C, UART, SPI, BLE, Zigbee

Responsibilities:

• Design, document, and execute manual test cases covering hardware, firmware, companion app, and cloud connectivity
• Test physical prototypes and production devices together with embedded firmware and connected software
• Set up and run test scenarios on lab test benches
• Log, track, and verify bug fixes in Jira; write clear, reproducible bug reports
• Collaborate closely with embedded, hardware, and software engineers throughout the release cycle
• Maintain and improve test documentation, checklists, and QA processes
• Participate in requirements and design reviews to catch issues early in the product cycle

We ensure your growth with:

• Competitive salary with regular reviews
• Modern projects with cutting-edge technologies
• Excellent space for your personal and professional development
• Low level of bureaucracy with a lack of multi-level management
• Attractive work environment: The modern and stylish office with ergonomic workstations, creative zones, and innovative spaces
• Paid vacations and sick leaves
• Accountant support
• Educational Events
• Free English classes
• Amazing team buildings.

Please note that the location is Lviv, and the work model is hybrid. 

(due to onboarding and device availability, an occasional visit to the office might be mandatory)

Job Description

Must have:

• Good knowledge of Python and OOP principles and some experience with IDE/Dev tools
• Experience with Git
• Fundamental knowledge of HTML and Web Dev tools
• Understanding of Software Testing theory (test design, test types)
• General knowledge of operating systems, APIs, network protocols, and databases
• Good level of English and readiness to communicate on a day-to-day basis
• Eagerness to learn automation testing
• Strong requirement analysis and problem-solving skills

Good to have:

• Fundamental knowledge of tools like Pytest, Jest
• Fundamental knowledge of Selenium and/or Appium

Job Responsibilities

• Working with the automated test framework (written in Python) and extending it:
• Developing automation tests for TV streaming applications for Roku, tvOS, iOS, Android Mobile, Android TV, Web, and other platforms
• Fixing broken tests
• Writing automated UX/UI and Functional tests
• Writing API tests for GraphQL and REST endpoints
• Monitoring automation run results and reporting them

Department/Project Description

Development & maintenance of an automated testing framework for TV streaming applications for an international broadcasting company headquartered in New York, US. The company owns several television channels/brands and has developed state-of-the-art TV streaming applications for Android TV, Android Mobile, iOS, tvOS, Roku, Web, Fire TV platforms, and wants to set up a solid automation framework to test these applications.

Привіт! Ми — re:re bureau, маркетингова агенція у складі infocus group. Працюємо на ринках Європи та Азії, маємо команди у Києві, Баку, Алмати й Кишиневі — і робимо все: від івентів і BTL до дизайну, мерчу, продакшну й трейд-маркетингу. Під ключ, зі смаком, без хаосу.

Шукаємо Marketing Event / Account Manager — людину, яка вміє одночасно тримати в фокусі кілька проєктів, комунікацію з клієнтами та командою й при цьому нічого не випускати з уваги.

👩‍💻 Що ти робитимеш:
— Вестимеш проєкти від брифу до фінальної реалізації — повністю, від і до;
— Координуватимеш дизайнерів, креаторів, копірайтерів — і робитимеш так, щоб команда працювала як одне ціле;
— Домовлятимешся з підрядниками, узгоджуватимеш бюджети й таймлайни;
— Готуватимеш презентації, звіти, триматимеш дедлайни, як власні;
— Даси лад Google Sheets, Asana, документам і комунікаціям — і в цьому наведеному ладі буде видно твій стиль роботи;
— Стежитимеш, щоб кожен проєкт не просто "здався", а вийшов таким, яким його хочеться показувати.

🌊 Ми будемо на одній хвилі, якщо:
— маєш 2+ роки досвіду в маркетингу, івентах чи агенції;
— вмієш координувати, планувати й домовлятися — навіть коли всі горять дедлайнами;
— англійська від B1+, впевнено спілкуєшся з підрядниками й клієнтами;
— на "ти" з таск-менеджерами, Google Sheets, PowerPoint, Word;
— живеш у Києві, готова(ий) до гібридного формату (3 дні офіс / 2 remote);
— не проти іноді виїхати у відрядження — по Україні чи за кордон.

🍏 Що ми пропонуємо:
— 35 000–45 000 грн (залежно від досвіду);
— 24 дні оплачуваної відпустки;
— гібридний формат, корпоративну техніку;
— офіс на Подолі — з терасою, кавою й атмосферою, у якій хочеться працювати;
— повністю оплачені відрядження (проїзд, проживання, добові);
— команду, де досвід, структура й креатив — не про різні відділи, а про одних і тих самих людей;
— онбординг, підтримку й спілкування без токсичності.

Буде багато різних задач, комунікації та відповідальності, але точно не буде двох однакових днів. Працюватимеш із сильною командою над проєктами, якими справді хочеться пишатись.

📩 Якщо відчуваєш, що це про тебе — надсилай резюме, портфоліо та короткий лист про свій досвід.
Розкажи, які проєкти тебе драйвлять і чому саме ти — ідеальна людина для нашої команди.

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.