Senior Golang Engineer at PawChamp | Kyiv, Lviv, Warsaw

We are looking to strengthen our team at Guru Apps with a talented Junior iOS Engineer who will actively participate in product experiments alongside our dedicated team.Guru Apps is a multi-product company within the Universe Group, focused on developing global iOS applications in the utility and AI niches.Our products optimize the digital routines of millions of users worldwide daily — from memory cleaning, document management on your phone, to AI tools for photo editing and content creation.Over the years, we have achieved remarkable milestones:— Surpassed 100 million downloads— Expanded into 185 countries— Consistently ranked #1 in the App Store, surpassing giants like Google, Netflix, and Instagram— Established leadership in our niches, setting quality standards in the utility and AI categories— Launched our own R&D laboratory, where we create at least 2 new products each year and develop proprietary AI technologies— ⭐ Maintained an average rating of over 4.6 in the App StoreAt Guru Apps, we embrace speed, experimentation, and ambition to build global products with a distinctly Ukrainian DNA. If you want to experience what it’s like to work within a community united by the ambition to create a unicorn from Ukraine, check out this video about Guru Apps.You are the perfect fit if you:Want to impact the product. Our developers influence both technical and product decisions. We discuss these as a team, where everyone can voice their opinion and propose ideas.Aspire for growth — we have an experienced team eager to share knowledge. Interested in vertical growth? Here, it all depends on your desire and work results.Are ready to develop category-leading products — we have already achieved impressive results, and there’s much more to come!

Hello!We are on the lookout for a talented Junior/Middle Software Engineer specializing in Go to join Guru Apps (part of Universe Group) – a thriving iOS ecosystem with over 100 million downloads across 186 countries (including Cleaner Guru, Scan Guru, and Visify) and an impressive average rating of 4.6 on the App Store.This is an opportunity focused on progressive development, as nearly all new backend services and products within our ecosystem are launched using Go, featuring high-load capabilities in production, complex business logic, and direct impact on a million-strong audience.You’ll fit right in if you’re eager to:Develop new backend services in Go for products with a global audience while working on Core systems that serve all ecosystem products.Design high-load solutions and witness their real-world performance in production— from initial release to scaling under millions of loads.Take full engineering ownership – from architectural decisions to releases, stability, and ongoing service evolution.Enhance your technical expertise by working with high-load architectures and modern tech stacks (Go, Kubernetes, AWS, Prometheus, OTEL), integrating cutting-edge approaches in backend development.Make a tangible impact on the product – we value engineering insights and technical suggestions, with your contributions directly reflected in products that reach millions.Collaborate within an ambitious team of like-minded peers who don’t just write code but build scalable solutions, sharing knowledge and best practices across the Universe Group.Thrive in a fast-paced decision-making environment – minimal bureaucracy, extensive collaboration, and real influence without lengthy approvals.Challenges you will tackle with your future colleagues:Development of analytical and marketing platforms, which form the basis of user attribution, event processing, and product and business decision-making...

Hello!We are seeking a talented AI Product Manager to join our dynamic team at Guru Apps. Your role will be pivotal in scaling our operations efficiently and rapidly.Guru Apps is a subsidiary of Universe Group specializing in mobile applications that lead in the utility and AI sectors. Our flagship products include Cleaner Guru, Scan Guru, Assist Guru, and Visify.Our Achievements:Over 100 million downloads globally.Average user rating of 4.6 on the App Store.A portfolio of over 6 products.Our products consistently rank at the top in their niches. In October 2024, Cleaner Guru topped the App Store rankings in the USA, Canada, and Australia, surpassing Instagram, Temu, ChatGPT, and TikTok. In 2025, our product Visify achieved similar success.A dedicated R&D lab focused on creating innovative products and supporting business growth.To see how we launch apps in a week, test hundreds of ideas, and scale products that are already in the hands of users worldwide, check out our video about Guru Apps.Meet our Product Team Leaders: Bohdan and Maksym . Bohdan joined nearly three years ago with extensive marketing experience.

We are looking for a Product Manager who is ready to take responsibility for results and become part of the future unicorn.Guru Apps is a business under the umbrella of Universe Group and develops mobile applications that lead in two main areas: utilities and AI. Our most notable apps include Cleaner Guru, Scan Guru, Assist Guru, and Visify.Our Achievements:Over 100 million downloads worldwide.4.6 average user rating in the App Store.More than 6 products in our portfolio.Our products rank top in their niches. In October 2024, Cleaner Guru topped the App Store rankings in the USA, Canada, and Australia, surpassing Instagram, Temu, ChatGPT, and TikTok. In 2025, another product of ours - Visify, achieved similar success.We have our own R&D lab that creates new products and helps the business scale.If you want to see how we launch apps in a week, test hundreds of ideas, and scale products that are already in the hands of the world, just watch this video about Guru Apps.

Join our dynamic Guru Apps team as a Middle+/Senior Software Engineer, where you'll actively engage in the implementation of innovative product experiments alongside our dedicated team.Guru Apps is a multi-product company within Universe Group, focusing on developing global iOS applications in utility and AI niches.Our products streamline the digital routines of millions of users worldwide, offering solutions from memory cleaning to document management on mobile devices, as well as AI tools for image editing and content creation.Over the years, we have achieved remarkable milestones:— Over 100 million downloads— Expanded to 185 countries— Consistently ranked #1 in the App Store, outpacing giants like Google, Netflix, and Instagram— Leading in our niches and setting quality standards in utility and AI categories— Launched our own R&D laboratory, producing at least two new products each year and developing proprietary AI technologies— ⭐ Maintaining an average rating of over 4.6 in the App StoreAt Guru Apps, we prioritize speed, experimentation, and a fervent ambition to build global products infused with Ukrainian innovation. To discover what it's like to work in a community that unites like-minded individuals aspiring to create a Ukrainian unicorn, check out our video about Guru Apps.This role extends beyond coding; you'll collaborate within an R&D-like team to create end-to-end products. Together with your peers, you'll simplify the lives of marketing teams and perform magic on routine and complex processes.You will be part of a team led by the MarTech Team Lead, alongside 3 Backend Engineers and a Frontend Engineer. Read this article by your future manager, detailing unique challenges and solutions that allow the team to optimize their time and accelerate business growth.

We are on the lookout for a Middle Creative Marketing Specialist to join our team at Guru Apps. In this pivotal role, you will be responsible for crafting innovative creatives that drive product promotion across leading channels such as Facebook and TikTok, with the aim of maximizing profits and achieving our business objectives.At Guru Apps, we are part of a vibrant ecosystem of mobile applications for iOS, under the umbrella of Universe Group. Our flagship applications, including Cleaner Guru and Scan Guru, have garnered over 90 million downloads worldwide, with users spanning across 180 countries and an impressive average rating of 4.6 in the App Store.Join us to witness how we rapidly launch applications, test hundreds of ideas, and scale products that are already in the pockets of users across the globe.With Guru Apps, you will have the opportunity to work with top-tier advertising platforms and gain access to cutting-edge tools, including AI technologies. We strive to automate routine processes, allowing our team to focus on strategic initiatives and creative solutions.

Greetings! Guru Apps is on the lookout for a Chief of Staff who will serve as a strategic partner to the CEO, transforming business objectives into actionable initiatives and driving measurable results.Guru Apps is a multi-product company within the Universe Group, focused on developing global iOS applications in the utility and AI niches.Our products optimize the digital routines of millions of users worldwide, ranging from memory cleaning and document management on your phone to AI tools for photography and content creation.Over the years, we have achieved remarkable milestones: Surpassed 100 million downloads Expanded to 185 countries Consistently ranked #1 in the App Store, outperforming giants like Google, Netflix, and Instagram Established leadership in our niches, setting quality standards in the utility and AI categories Launched our own R&D lab, creating at least two new products annually and developing proprietary AI technologies⭐ Maintained an average rating above 4.6 in the App StoreAt Guru Apps, we prioritize speed, experimentation, and the ambition to build global products with a Ukrainian touch. To experience what it's like to work in a community that unites like-minded individuals aiming to create a unicorn from Ukraine, check out our video about Guru Apps.

Hi there!We are on the lookout for a dynamic Product Manager / AI Product Manager to join our team at Guru Apps. If you’re passionate about driving innovation and scaling our products effectively, we want to hear from you!Guru Apps is a proud member of the Universe Group and specializes in creating mobile applications that lead the market in two key segments: utilities and AI. Our flagship products include Cleaner Guru, Scan Guru, Assist Guru, and Visify.Our Achievements:Over 100 million downloads worldwide.An average app rating of 4.6 stars on the App Store.A diverse portfolio featuring more than six products.Our products consistently rank at the top of their categories. For example, in October 2024, Cleaner Guru topped the App Store charts in the USA, Canada, and Australia, surpassing competitors like Instagram, Temu, ChatGPT, and TikTok. In 2025, another product, Visify, achieved similar success.A dedicated R&D lab focused on developing new products and facilitating business growth.Want to see how we launch apps within a week, test hundreds of ideas, and scale products that are already in the pockets of users worldwide? Check out our video about Guru Apps.

We are seeking a Creative Marketing Specialist at Guru Apps, where your primary role will be to develop creative assets for promoting our products across leading platforms (such as Facebook, TikTok, etc.), aiming to maximize profitability and achieve business objectives.Guru Apps is an ecosystem of mobile applications for iOS under Universe Group. Our most recognized applications include: Cleaner Guru, Scan Guru, as well as AI products and photo editing applications.Over 90 million downloadsUsers from 180 countries worldwide4.6 average rating in the App StoreCleaner Guru is a leading app in its category by downloads.If you're eager to see how we launch apps in a week, test hundreds of ideas, and scale products that are already in the hands of users worldwide, check out this video about Guru Apps.At Guru Apps, you will have the opportunity to work on a top-ranked product in its category and collaborate with diverse markets—from Japan to Brazil. You will engage with leading advertising platforms and gain access to the latest tools, including AI.We automate all routine processes, allowing you to focus on strategic development and quickly implement and test your ideas.

Join Universe Group, the innovators behind an ambitious AI-first web product in the visual content generation and editing space. As we transition into a phase of rapid scaling, we are on the lookout for a talented Full-Stack Developer to tackle architectural challenges and implement cutting-edge technologies into our product.Your future team includes: CEO, Full Stack Developer, Product Designer, PPC Specialist, Growth Product Manager, Product Manager, Data Analyst.Technology stack you will work with: React.js, Node.js, Nest.js, TypeScript, Redux, PostgreSQL, MongoDB, Redis, AWS, Kubernetes.Why you should join us:Collaborate closely with Ruslan — an experienced CEO with a proven track record. His previous startup, Eventmate, quadrupled its revenue within a year, secured $150K in investments (including from Google), and expanded into international markets including Europe and Brazil.Impact on business development — As a core team member, you will play an essential role in shaping the product while delving into architectural solutions and integrating the latest technologies into a product built from the ground up.A team of like-minded professionals — You will work alongside motivated individuals who support one another. We closely collaborate with technical teams across other businesses within the Universe Group, sharing insights and expertise.Opportunities for professional and career growth. We believe that the success of our business depends on the motivation and potential of each team member, so we continually invest in learning and development. You will also have the chance to advance to the Tech Lead position and contribute to team expansion and mentorship of junior specialists.Your future tasks will include:Defining and developing the product architecture, including technology selection, project structuring, and building scalable infrastructure to support a large number of users.Developing and maintaining...

Join us as a Product Manager who is ready to take charge of results and be a part of the future of our unicorn journey!Guru Apps, a division of Universe Group, develops mobile applications that lead in two key areas: utilities and AI. Our most popular apps include Cleaner Guru, Scan Guru, Assist Guru, and Visify.Our Achievements:Over 100 million downloads globally.Average user rating of 4.6 on the App Store.More than 6 products in our portfolio.Our products rank at the top of their niches. In October 2024, Cleaner Guru topped the App Store rankings in the USA, Canada, and Australia, surpassing Instagram, Temu, ChatGPT, and TikTok. By 2025, another product, Visify, achieved similar success.We have our own R&D lab that creates new products and helps the business scale.If you want to see how we launch apps in just a week, test hundreds of ideas, and scale products already in the pockets of users, check out our video about Guru Apps.Meet Bohdan and Maksym — our leaders in the product team at Guru Apps . Bohdan joined the team nearly three years ago with extensive marketing experience, growing from Product Manager to Head of Product while building strong expertise in product development and scaling.

Join Skelar as an Infrastructure Engineer, where we are pioneering the launch of tech businesses within the dynamic realm of venture capital. We are a dedicated venture builder focused on creating international IT product companies, and together with our co-founders, we assemble exceptional teams to dominate the global market.At Leaply, we are committed to enhancing individuals’ lives through an ecosystem of innovative digital and physical products aimed at fostering healthy habits. Our operations span across global markets, including the US, Tier 1 regions, Europe, and beyond.Having recently launched our habit-building app in June 2024, we utilize a subscription-based monetization model and a performance-first marketing strategy (Meta, Google, TikTok). We achieved positive unit economics within just two months and are ambitiously targeting a 10x growth by year-end.Our team has successfully launched its third business together, boasting a wealth of experience and successful exits. We thrive on rapid execution, open communication, and setting high-reaching goals.Key Responsibilities:Be the inaugural member of a new Platform team, responsible for establishing the infrastructure function from the ground up, encompassing both strategic planning and execution.Transform our existing infrastructure into a mature, well-structured platform, establishing clear service maps, dependencies, and ownership areas.Elevate our use of Terraform and Kubernetes to a higher level of maturity through a modular Infrastructure as Code (IaC) architecture, standardized deployments, and autoscaling, ensuring each release is reliable and predictable.Develop a comprehensive observability system encompassing metrics, logs, traces, and alerting, allowing proactive monitoring of system health.Enhance security practices through robust access management, secrets handling, and protection against external threats, ingraining security into our engineering culture.Optimize data infrastructure to provide stable and efficient analytics pipelines for informed business decision-making.Create platform templates for new services to enable product teams to concentrate on feature development rather than infrastructure concerns.

Join SKELAR, a pioneering venture builder that crafts international tech businesses. Collaborating with co-founders, we assemble high-performing teams to excel in global markets.Currently, SKELAR boasts a diverse portfolio of businesses across various niches, from EdTech to marketplaces. Our companies consistently rank among the top startups and product firms in Ukraine, achieving high standings in the App Store and developing platforms used by millions. Our innovations have been featured in renowned media outlets such as TechCrunch and Wired.People are our core value. We unite passionate talents who inspire those around them with their drive and determination. We believe that the right environment is crucial, which is why we aim to create the best workplace in Ukraine.We are seeking a Junior Full-Stack Engineer to join us in building modern, intelligent, and adaptable products that will serve as the backbone of our internal processes and help accelerate our growth. This role offers a developer the chance to make a significant impact on product development and witness tangible results from their contributions.We operate like a startup within a company: rapidly testing ideas, engaging extensively with users, and continuously searching for improvement opportunities.Our team is currently expanding as we launch new services, restructure our architecture for scalability, and incorporate AI functionalities that unlock numerous new possibilities.

Welcome to Liven! We are crafting a global ecosystem of self-regulation products that empower individuals to disengage from emotional autopilot and cultivate better relationships with themselves.Within our ecosystem, we offer:Self-discovery Companion — an app chosen by over 2.5 million users. It provides a space for self-exploration through AI coaching, mood tracking, audio practices, and bite-sized learning.Online Coaching — sessions with certified experts to navigate complex situations.Supplements — for physical recovery and body support.We are on a continuous expedition with ambitious plans to expand our ecosystem.Liven is a company for the curious. We are driven by curiosity — an intrinsic need to ask questions, dig deeper, and not shy away from the unknown challenges.Our passion lies in creating products and solutions that genuinely help. Our curiosity and experimental culture exist to discover better ways to support and guide individuals on their self-discovery journeys.Currently, we are seeking a Data Engineer / Analytics Engineer at Liven.In this role, you will be responsible for establishing the company’s robust data foundation, designing storage architecture, and providing analytical teams with quality, ready-to-use data.Challenges Awaiting You:— Ensuring the continuous provisioning of necessary data to analytical teams across various business domains (marketing, product, operations) through stable integrations (using Airbyte and custom solutions);— Organizing long-term DWH architecture (data layer development, modeling, ensuring data integrity);— Developing and optimizing our ELT processes and data transformations within BigQuery using Dataform, as well as implementing reliable process orchestration (with plans to transition to Airflow/Astronomer);What We Value:— Excellent SQL knowledge and a deep understanding of modern analytical warehouse construction concepts;— Practical experience with cloud data ecosystems (ideally GCP, BigQuery) and data transformation tools (Dataform/dbt);

Join Universe Group as a Business Associate and become an integral part of our dynamic team. In this role, you will support various business functions, ensuring smooth operations and enhanced productivity. You will collaborate with cross-functional teams, engage with key stakeholders, and contribute to strategic initiatives that drive growth and innovation.

At AppsFlyer, we place data at the core of our operations, processing over 150 billion events daily, and we’re rapidly expanding. Our dedicated team builds the essential frameworks that support this growth. Unlike conventional Data Engineering teams, we function as a Software Development team, creating internal services and tools for Data Engineers and other Software Development teams. We are at the forefront of transitioning from a Data Lake to a Data Mesh architecture, providing: Massive-scale data ingestion services Data operations within a Mesh architecture Tools that empower other teams to create reliable, cost-effective, and high-performing data pipelines By working at the intersection of Software Engineering, Data Engineering, and DevOps, we design, build, and maintain the core services that drive AppsFlyer’s data ecosystem.

SKELAR is a venture builder that creates international product IT companies following the rules of the venture investment world. Together with co-founders, we assemble strong teams to launch product IT businesses and succeed in global markets.We are currently seeking a Data Analyst for one of our new businesses — Liven.Liven is a product company that builds a companion for self-discovery. We believe that self-exploration is a lifelong journey, and we are developing an ecosystem of products that makes this journey understandable, enjoyable, and engaging: bite-sized courses, mood trackers, AI companions, routine builders, and well-being tests, with many more useful features in the pipeline. Practically, we help people gain a better understanding of themselves.Since 2023, we have grown from a small startup to a team of over 150 specialists and are actively scaling. However, with each new stage, we maintain our core values: a vibrant culture where everyone can launch their own ideas and impact the product.If the idea of changing users' lives excites you — let’s connect!As a Data Analyst, your responsibilities will include:— Identifying potential growth opportunities for the business through data analysis and transforming insights into actionable strategies;— Enhancing product features based on metrics and split-test results;— Automating analytics processes, building ELT pipelines, and creating analytical dashboards;— Implementing solutions for process automation and optimization.What we value:— Proficiency in mathematics and statistics;— Strong command of SQL, BI tools (Tableau), and Excel/Google Sheets;— Excellent analytical skills, well-developed critical thinking, and communication skills;— Ability to maintain a holistic perspective while diving into details;— Quick learning ability and results-oriented mindset;— English level of B1 or higher.Preferred qualifications:— Experience conducting A/B tests;— Familiarity with Python and Git;— Understanding of marketing/product metrics and their interrelationships.In addition to our businesses, we are developing the SKELAR Foundation, initiated by our employees. Through this initiative, we create and fund projects that help address the consequences of war and aid in Ukraine’s recovery.SKELAR is an environment for self-realization for individuals capable of building successful companies. We refer to such companies as the next big everything. We believe in their power and scalability. We plan to continue developing tech businesses, conquer global markets, and work towards Ukraine's victory

1. Introduction: Our Vision & GrowthLeaply aims to revolutionize healthcare with an ecosystem akin to "Apple for Healthcare"—a seamless integration of digital and physical solutions that empower individuals to enhance their quality of life and longevity. Positioned at the convergence of biohacking, wellness, and technology, we are committed to developing B2C products targeted at global markets, including the USA, Tier 1 nations, and Europe.We currently offer three innovative products:(stage: scaling) an app featuring personalized biohacking and longevity plans;(stage: scaling) a direct-to-consumer supplement brand;(stage: launching) a stealth digital product set for release soon.Since our inception as a startup in 2024, we have achieved remarkable growth in the past 1.5 years: establishing a positive unit economy within 2 weeks, reaching seven-figure revenues in just 4 months, and continuing to expand rapidly.2. Role: Business AssociateWhy This Role Is CrucialAs we grow at an unprecedented pace, the Founder requires a strategic partner—someone to help streamline operations during this rapid scaling phase and ensure the achievement of key business objectives. This role offers a comprehensive view of the organization, engaging in both strategic planning and operational execution.Upcoming Challenges:Strategic Implementation: Converting the Founder’s vision into actionable plans and tracking their success.Cross-functional Collaboration: Aligning marketing, product, and operations teams to meet our aggressive growth targets.Special Initiatives: Guiding critical projects, such as launching new market verticals.Process Improvement: Creating a streamlined structure that supports rapid growth without sacrificing decision-making speed.Data-driven Insights: Evaluating key business metrics and generating insights to facilitate strategic decisions.Key Requirements:Proactivity & Accountability: You take initiative and tackle bottlenecks independently.Analytical Acumen: Proficiency in interpreting data, understanding unit economics, and the fundamentals of performance marketing.Fast-paced Adaptability: Proven experience in high-velocity environments where conditions evolve swiftly.

Universe Group has launched an exciting new AI-first web product in the visual content creation and editing niche. As we move into a phase of rapid scaling, we are seeking a Product Designer to help bring our product to market, establish effective positioning, and ensure user growth from day one.Your future team includes: CEO, Full Stack Developer, Product Designer, PPC Specialist, Growth Product Manager, Product Manager, Data Analyst.What you will gain by joining us:Collaborate closely with Ruslan, an experienced CEO with a successful track record. His previous startup, Eventmate, grew 4x in revenue within a year, attracting $150K in investments (including from Google) and expanding to international markets in Europe and Brazil.The opportunity to be the first in-house Product Designer in the company.Mentorship from top professionals.Engagement in strategic planning, directly influencing key product decisions, business strategies, and workflow optimization.Experience working with cutting-edge AI-based solutions and collaborating with a skilled team of ML developers.Growth potential to a Lead position and the chance to build your own team.You are a great fit if you want to:Design products that scale quickly and significantly impact user experience.Work with an AI-native product where AI is an integral tool (LLM, image generation, automation).Join a hyperscale product with a fast-paced environment and significant growth.Utilize and expand an existing design system across multiple web products.Have the opportunity to advance to a leadership role and assemble your own team (if this is your ambition).Receive mentorship from designers within Universe Group and enhance your T-shaped skills (product thinking, analytics).Be part of a data-driven and results-oriented team.Key Responsibilities:Design product solutions for various user scenarios with a focus on activation and engagement.