Jobs

As a DevOps, you will play a vital role in ensuring the smooth operation and optimization of our network of IoT devices and Linux server infrastructure. Your expertise will be crucial in planning, provisioning, implementing automation, and safeguarding the security and performance of our systems.

Responsibilities:

Perform Linux system administration tasks, including server setup, configuration, and maintenance.

Monitor server performance, resource utilization, and troubleshoot potential issues to ensure optimal operation.

Implement security measures, configure firewalls, and manage user permissions to ensure robust system security.

Develop and maintain automation scripts using Bash or Python to streamline repetitive tasks and improve efficiency.

Collaborate with the development team to set up and maintain Continuous Integration/Continuous Deployment (CI/CD) pipelines for software deployment and testing.

Manage network configurations, interfaces, and routing to maintain seamless connectivity.

Set up and maintain monitoring and log analysis tools for proactive system monitoring and issue detection.

Implement backup strategies and disaster recovery plans to safeguard data and ensure business continuity.

Collaborate with cloud infrastructure if applicable, and maintain a cohesive hybrid environment if required.

Stay up-to-date with the latest trends and technologies in the Linux and DevOps domain, incorporating relevant innovations into our infrastructure.

Requirements:

2 years.

User Management Service.

RADIUS (LDAP).

Proficient in Linux system administration, with hands-on experience in aarch64 architecture.

Strong scripting skills in Bash, Python for automation and configuration management.

Familiarity with configuration management tools such as Ansible

Experience with networking concepts, protocols (TCP/IP, DHCP, DNS), and firewall configurations.

Knowledge of monitoring tools like Nagios, Zabbix, or Prometheus, and log management tools like ELK stack is advantageous.

Prior exposure to CI/CD pipelines and Git version control is desirable.

Ability to analyze and troubleshoot complex technical issues, providing effective solutions.

Strong security mindset with the ability to implement robust security measures.

Proactive and adaptable, able to thrive in a dynamic startup environment.

Communication and teamwork skills, collaborating effectively with cross-functional teams.

We are hiring our first senior commercial hire for a product development company that builds digital products end to end, including MVPs, custom software, and long-term product development engagements.

Our team already has strong delivery capability, completed projects, case studies, measurable outcomes, and client references. We now need someone senior who can turn that foundation into a focused, repeatable new business function.

This is a hands-on role for someone who has already sold development services or custom product work. It is not a pure lead generation role, and it is not a big-company sales management position. The person we hire will help shape our commercial direction, run outbound and business development directly, and turn target accounts into qualified opportunities and signed clients.

What this role is for

The goal is to build the first working version of a repeatable sales function beyond founder-led networking.

In the early stage, that means:

• understanding our capabilities, delivery model, strongest case studies, and best-fit client situations
• helping define a sharper commercial focus, including target client profile, offer framing, and messaging
• building and running a practical outbound and business development process
• qualifying opportunities rigorously and focusing effort on deals with real commercial potential
• moving opportunities forward with discipline and clear ownership
• working with the founder selectively on calls or later-stage conversations where that improves conversion
• improving commercial materials where needed, including messaging, decks, case studies, outreach copy, and website input

This role is both strategic and operational. The first priority is to create focus, generate qualified pipeline, and close well-matched new business.

What success looks like

Success in this role means:

• defining a clear initial commercial focus
• establishing a sales process the company can actually run
• creating a steady flow of qualified opportunities
• converting the best opportunities into signed business
• reducing dependence on the founder’s personal network over time

We care about pipeline quality, commercial judgment, and closed revenue, not vanity metrics.

What you will own first

In the first phase, you will be expected to:

• learn the business quickly and identify where we are most credible
• narrow the sales focus instead of trying to sell everything to everyone
• build a targeted outbound and business development motion
• create structure around qualification, pipeline management, and follow-through
• test positioning and messaging in the market and refine it through real conversations
• bring the founder into the process selectively, not as the default owner of the sale
• help us identify what is repeatable, what is not, and where to double down

Candidate profile

We are looking for someone who:

• has real experience selling dev services, custom software development, MVP development, dedicated teams, or product development services
• understands how custom development deals are qualified, shaped, and closed
• is comfortable building parts of the commercial function as they go
• can balance commercial strategy with direct execution
• knows how to distinguish serious opportunities from poor-fit deals
• is comfortable owning pipeline and revenue progress, not just top-of-funnel activity
• can operate with autonomy and sound judgment in a founder-led company

Preferred background

Especially relevant experience includes:

• selling to startups, scale-ups, or product-led companies
• working on mid-sized service deals with meaningful contract values
• strong outbound and account-based business development skills
• experience in founder-led or early-stage environments
• exposure to crypto, wallets, fintech, or other regulated or high-trust sectors
• practical use of AI tools in research, targeting, outreach, qualification, and workflow improvement

This role is probably not a fit if:

• your experience is mainly booking meetings for others to close
• you have not sold custom development or product development services before
• you only perform well inside a fully mature inbound machine
• you need a heavily prebuilt playbook before you can begin
• you prefer reporting activity over owning commercial outcomes
• you struggle to say no to weak-fit opportunities

Working model

We are open on structure. This can be full-time, part-time, or another arrangement that fits the right person.

What matters is seniority, ownership, commercial judgment, and the ability to build real momentum inside the business.

Compensation

Compensation will include a solid base plus meaningful performance upside tied to closed business.

The exact structure will depend on profile, experience, and working model, but this is intended to be a serious role for a serious operator.

Why this role is interesting

This is an opportunity to join when the delivery capability already exists, but the commercial function still has real room to be shaped.

For the right person, this is more than another sales role. It is a chance to define the focus, build the motion, and create a sales engine that becomes a real company capability.

If your background fits and you know how to sell this kind of work, we want to hear from you.

Performa HR Agency is currently looking for a strong Talent Acquisition Specialist to join one of our clients.
 

Our client is an international fintech company operating in the iGaming payments space. The company is developing a reverse marketplace model that connects B2B merchants with traders and processes high transaction volumes in India, while actively expanding across South and Southeast Asia.
 

If you’re excited about building and optimizing recruitment processes during a period of rapid growth, this role is for you.

Key Responsibilities: 

• Manage the full recruitment cycle: from requirements gathering to the offer stage;
• Maintain and manage the CRM system (job postings, candidate pipeline, monthly hiring plans);
• Actively source candidates via LinkedIn, job platforms, and referrals;
• Conduct initial interviews and evaluate candidates;
• Collaborate closely with hiring managers;
• Prepare offers and support candidates throughout the onboarding process;
• Track and analyze recruitment metrics (time-to-fill, quality of hire, funnel performance).
   

Requirements:

• 2+ years of experience in recruitment;
• Solid understanding of modern sourcing channels;
• Strong communication skills and the ability to engage with diverse candidate profiles;
• High level of self-organization and accountability.

What the Company Offers:

• Competitive compensation indexed to USDT;
• Fully remote, full-time position;
• Direct impact on business growth and scaling;
• 24 paid vacation days;
• 10 additional days off;
• 10 paid sick leave days;
• 7 paid emergency leave days (force majeure);
• English language courses.

StrongLifts is growing and hiring an experienced iOS developer to join our remote team.

This is a unique opportunity to make an impact on an app that changes people's bodies and lives. As our primary iOS developer, you'll own the entire iOS codebase and be responsible for shaping the future of our app. We offer a full-time, remote position with flexible hours.

StrongLifts is a fully remote company, and this is a remote job. It is open to anyone located in Europe (between UTC-1 and UTC+4).

About StrongLifts

StrongLifts is a top-rated workout app with thousands of paying subscribers and over 200,000 five-star reviews worldwide (4.9-star rating).

Since launching in 2011, our growth has been driven by listening to our users and building what they need to get results. We're 100% self-funded and profitable.

Our mission is to help people get stronger by making strength training simple. We want our app to handle all the thinking so users can focus more on lifting. Our team is small and values building a great product that helps people make progress in their lives.

Benefits

• $3,000–5,000/mo gross, based on experience
• Full-time role with steady, long-term work (no contract hopping)
• 100% remote - work from wherever you feel most productive
• Flexible hours - set your own schedule as long as you get results
• Impact - your work will be used by thousands of people worldwide
• Minimal meetings - plenty of time to focus on coding
• Great team - we're very selective about who we work with
• 20 paid holidays per year, plus your local public holidays

Requirements

• 2+ years of experience building and launching iOS apps
• Experience with Git, pull requests, code review workflows
• Highly skilled at writing clean, maintainable, and reliable code
• Strong SwiftUI skills. UIKit knowledge is a plus for maintaining legacy screens
• Solid understanding of algorithms, data structures, and app architecture
• Excellent English communication skills (both spoken and written)
• Located between UTC-1 and UTC+4 for time zone alignment
• Available full-time

Responsibilities

• Take full ownership of iOS
• Design and build new app features
• Troubleshoot and fix bugs reported by users
• Ensure the best performance and stability of our app
• Maintain code quality (reviews, cleanups, refactoring, etc)
• Keep our app updated with new iOS versions, features, and devices
• Ship through GitHub PRs and release via Xcode Cloud to TestFlight / App Store
• Maintain technical documentation

Tech Stack

Our iOS codebase is modern, clean, and well-maintained. We use the latest Apple frameworks and best practices, with a strong focus on code quality, testing, and automation.

The app is built natively in Swift and is mostly SwiftUI, with some UIKit. Deep experience with Swift and SwiftUI is required. We also use Swift Concurrency, Combine, CoreData, RevenueCat, WatchKit, HealthKit, XCTest, etc. The backend uses Firebase (Auth, RTDB, Firestore). Experience with these additional technologies is a plus, but not required if you're a fast learner.

Team

You'll work closely with our Android developer to keep both apps consistent so users get the same features, logic, and algorithms on both platforms. You'll also work with our founder and designer to understand user needs and advise on technical feasibility. You'll work with QA and support to investigate and fix bugs. We communicate mostly in writing and minimize meetings. You'll have plenty of time to focus on coding and building a great app.
 

We're looking for someone who can start as soon as possible.

Meet Elbax! We make cool mobile apps, and people have downloaded our stuff over 50 million times. Our favorites to make? Photo/video editors (some even use fancy AI) and Health&Fitness apps.

Why do we think our apps rock? Simple: We've got some of the best people making them. We want every person on our team to grow, feel important, and be proud of what they do.

The Job:

We are looking for a User Acquisition whose responsibilities will include:

- Developing and implementing strategies to optimize the current mobile product range as well as successfully launching new products into the market;

- Steering a robust marketing team of 6 professionals;

- Demonstrating profound understanding and active participation in user acquisition, including preparing tech infrastructures for traffic procurement;

- Playing a proactive role in fine-tuning product market positioning;

- Analyzing the market to identify relevant acquisition strategies, researching competitors, and identifying potential growth opportunities.

We expect you to:

- At least 2 years of experience in the same position;

- Profound understanding of attribution methodologies and models for advertising campaigns and seasoned experience with User Acquisition;

- Advanced analytical skills;

- Experience in managing substantial marketing budgets;

- Proven track record in team leadership;

- English proficiency at an Upper-intermediate level or above.

Why Join Us?

✔️Portfolio of mobile products in trending niches with high product performance.

✔️No bureaucracy - we are flexible and quick in decision-making.

✔️Bonuses based on performance.

✔️Freedom of decision-making - if a new idea/strategy is justified, we immediately start working on it.

Meet Elbax! We make cool mobile apps, and people have downloaded our stuff over 50 million times. Our favorites to make? Photo/video editors apps.

Why do we think our apps rock? Simple: We've got some of the best people making them. We want every person on our team to grow, feel important, and be proud of what they do.

The Job:

We are looking for a Manual QA Engineer superstar. Sound like your jam? Here’s the scoop:

- Documentation testing;

- Testing of product functionality;

- Recording bugs in the bug tracker;

- Writing cases and other test documentation;

- Communication with people inside and outside the team.

We expect you to:

- Experience as a QA Engineer for 2 years or more;

- Experience in mobile testing;

- Basic knowledge of testing theory: test design, writing test cases and checklists, creating bug reports,

understanding of the principles of client-server applications;

- Practical experience in testing mobile applications on Android and iOS: using emulators/simulators, intercepting traffic (Charles/Proxyman, etc.), understanding the peculiarities of testing for different OS, taking logs from real devices;

- Practical experience in testing web applications: use Chrome DevTools, testing sites in different browsers;

- Backend testing: sending and reading API requests (Postman, etc.), working with database (CRUD), knowledge of basic bash/zsh commands;

- English - from Intermediate (preferably).

IT Support Engineer / Systems Administrator / IT Specialist / IT Administrator / IT Manager

Role Overview

We are looking for a hands-on IT Support Engineer to manage day-to-day IT support in a small office environment. The core infrastructure is already in place (Microsoft Entra ID, Intune, Kandji), and the focus will be on user support, endpoint management, optimization, and continuous fine-tuning.

You will be the primary point of contact for IT requests, supporting both macOS and Windows endpoints for on-site and remote users, while ensuring security, stability, and a great user experience.

Responsibilities

1. Identity & Access Management (Microsoft Entra ID)

·   Administer and support Microsoft Entra ID (Azure Active Directory), including user lifecycle management, groups, roles, and RBAC.

·   Manage and secure integrations with cloud applications and SaaS services.

·   Configure, monitor, and maintain Conditional Access and Multi-Factor Authentication (MFA) policies.

·   Perform regular access reviews and ensure permissions align with internal security and compliance policies.

2. Endpoint & MDM Management

·   Configure, deploy, and manage MDM solutions for:

o   macOS (Kandji / Jamf)

o   Windows (Intune)

o   iOS and Android device

·   Maintain compliance, security baselines, and device health.

·   Continuously optimize MDM profiles, policies, and application deployments.

3. IT Support & Troubleshooting

·   Act as the single point of contact for IT support requests in the office.

·   Troubleshoot hardware, OS, application, and access problems efficiently.

·   Support users both on-site and remotely, ensuring minimal downtime.

·   Assist users with secure access to corporate applications and resources.

·   Escalate complex issues to administrators, vendors or external partners when required.

4. Jira Administration (Preferred)

·   Administer and maintain Jira (users, permissions, projects, workflows).

·   Support Jira users and troubleshoot access or configuration issues.

·   Ensure Jira configuration aligns with internal workflows, security, and data protection requirements.

Qualifications & Skills

·   3+ years of experience in IT support, IT administration, or a similar role.

·   Clear communication skills and a user-oriented mindset.

·   Strong hands-on experience with endpoint support (Windows & macOS).

·   Practical experience with Microsoft Entra ID (Azure AD).

·   Experience with MDM platforms such as Intune, Kandji, Jamf, or equivalent.

·   Solid troubleshooting, analytical, and problem-solving skills.

·   Nice to have familiarity with next-generation firewalls (NGFW) and core networking concepts.

About the Role

Techchain Solutions builds custom Web3 and AI products for funded startups. We've set up our outbound engine now we need someone who can turn warm leads into revenue.

We're looking for an experienced Pipeline Captain to take over conversations after the first response, qualify leads, run intro calls, and help close deals. This is a part-time role with real ownership: you'll directly influence pipeline and revenue.

You'll work closely with the founder and the Growth Architect. No bureaucracy, no layers just short feedback loops and direct impact on the bottom line.

Responsibilities

• Take over leads after first response from the Growth Architect (Help to Leadgen build conversations)
• Qualify inbound and outbound leads based on ICP fit, budget, and timeline
• Run discovery and intro calls with founders, CTOs, and product leads
• Present Techchain's services and tailor the pitch to each prospect's needs
• Manage the sales pipeline in HubSpot move deals through stages, keep data clean
• Collaborate on proposal creation and follow-up strategy
• Help close deals and negotiate terms
• Provide feedback to the Growth Architect on lead quality and messaging effectiveness
• Share insights on market trends, objections, and competitor positioning

Requirements

• 2+ years of experience in B2B sales, SDR, or account executive roles
• Background in Web3, IT services, or software development sales
• Proven ability to run sales calls and move deals from qualification to close
• Strong written and spoken English (C1+)
• Experience with CRM tools (HubSpot preferred)
• Comfortable with async communication and remote work
• Available for at least 15–20 hours/week with overlap in CIS/EE time zones
• Self-driven — you don't need someone to tell you to follow up

Nice to Have

• Existing network in the Web3 / crypto startup ecosystem
• Experience selling custom development or staff augmentation services
• Familiarity with outbound tools (Apollo, Instantly)
• Understanding of AI/ML product landscape
• Track record of exceeding quota or revenue targets

Compensation & Growth

• Bonus-based compensation tied to qualified meetings and pipeline generated
• Revenue share: % from every closed deal you help bring in
• No cap on earnings — the more you close, the more you make
• Potential to grow into a full-time Head of Sales role as the team scales
• Work directly with the founder — influence sales strategy, not just execute it
• Build the playbook from scratch for a company at an inflection point

Location: Ukraine, Remote
 Industry: Mission-Critical Facilities, Data Centers
Engagement Type: Independent Contractor Agreement for Provision of Services (long-term)
 

Ehvert Mission Critical, a business unit within Salas O’Brien, is seeking an experienced Electrical Engineer for a long-term independent contractor basis.

This is an ongoing contractual engagement with a US-based company and is not limited to a single project. The role involves continuous collaboration across multiple mission-critical projects, based on business needs.
You will provide services as an independent, self-employed professional under a formal independent contractor agreement.
 

How to Apply: Interested candidates should submit their resume in English detailing their relevant experience.

 
Role Summary:

We are seeking a skilled Electrical Engineer as an independent contract worker to support the design and coordination of cutting-edge data center projects across the U.S. In this role, you will be responsible for modeling, designing power distribution, security and life systems, standby generators and UPS systems, performing calculations, preparing technical documentation, and ensuring design accuracy using advanced BIM and electrical engineering tools. You will collaborate closely with other disciplines in a dynamic, fast-paced environment, contributing to the full project lifecycle from schematic design through execution. Strong technical knowledge, attention to detail, and excellent communication skills are essential.

What We Offer

• Experience in a high-tech industry completing work for an international company.
• Unique, cutting-edge data center projects 
• Dynamic work partnering with a team of professionals focused on engineering
• Competitive hourly rate
• Ability to collaborate remotely
• Supportive dynamic environment 
• English classes made available.
   

 Key Responsibilities:

• Using BIM tools to virtually construct Electrical systems and coordinate with other disciplines using tools such as Autodesk Revit – is a must
• Developing a thorough understanding and delivery of the project requirements as they relate to scope, cost and schedule
• Determining and expediting the engineering deliverables for projects
• Developing and maintenance of the project scope of work documentation and revisions as required during the design evolution
• Designing of electrical systems including power distribution systems, UPS systems, standby generator systems, and security and life systems
• Preparing the engineering calculations, schematic designs and detailed designs
• Preparing technical documentation required for the execution of the project including, design criteria, design calculations, process flow sheets, and specification and data sheets for electrical equipment
• Reviewing of shop drawings
• Producing models and drawings in various BIM software and CAD modeling tools

 
Qualifications & Experience: 

• A bachelor’s or master’s degree in engineering
• Proven expertise as an electrical engineer
• Written and spoken English B1 and higher
• Experience in electrical design for industrial, residential, and commercial sectors, in medium voltage and low voltage distribution, lighting, grounding and lightning protection
• Experience in various electrical modeling software
• Hands-on experience using tools and software such as Revit Autodesk – is a must
• Experience in working on projects in a multidisciplinary environment
• Deep knowledge of electrical manufacturing processes
• Understanding of electrical engineering codes and safety standards
• Microsoft Office proficiency (Word, Excel, Outlook)
• Ability to multi-task and prioritize accordingly while meeting project deadlines
• Self-starters that are ambitious and thrive in a fast-paced environment
• Ability to communicate technical knowledge in a clear and understandable manner
• Excellent communication skills
   

Why Us?

• Perform on high-profile, hyperscale, and AI data center projects in a rapidly expanding industry
• Collaborate with leading professionals and global clients such as Microsoft, Oracle, Uber, and Amazon
• Competitive terms of the contract
• Dynamic environment fostering creativity through exposure to advanced technologies such as BIM, VDC, digital twins, and augmented reality

Collaborate with Ehvert Mission Critical, a business unit within Salas O’Brien, and help us achieve our international engineering goals!
 
Ehvert Mission Critical specializes in the design and construction management of data centers. We are a business unit within Salas O’Brien - a 4,000-person engineering and professional services firm, widely recognized for its extensive expertise and impressive project portfolio. With more than 10,000 projects annually and 100 offices across North America, Salas O'Brien is ranked #39 on Engineering News-Record’s 2024 Top 500 Design Firms list.
  

Ehvert Mission Critical, a business unit within Salas O’Brien is an industry leader in data center facility  engineering, specializing in hyperscale and AI data centers, designing massive data centers for global tech giants like Microsoft, Uber, Oracle, and Amazon. Our projects involve complex electrical, mechanical, automation, and security systems necessary to power, cool, and secure these high-demand facilities, often exceeding loads of 100 MW per facility and up to 500 MW per site. 
  

We are recognized for our advanced engineering and construction techniques, including Building Information Modeling (BIM), Virtual Design and Construction (VDC), and augmented reality. 
  

Join our team at Ehvert Mission Critical, a business unit within Salas O’Brien, and help us achieve our international engineering goals! 
  

For more information, visit www.ehvert.com  and https://salasobrien.com/.

Cyber Harbor is a fast-growing Ukraine-based company founded by engineers and researchers who helped defend critical cyber infrastructure during the war. Our work is shaped by real-world experience, and we build AI-powered systems designed to handle complex, high-stakes environments.

We are looking for a specialist who will help build a strong quality assurance process for our company’s IT products, including solutions in the field of artificial intelligence.

In this role, you will be responsible for full manual testing of our products, evaluating them through the lens of real business and user scenarios. For us, it is important not only to verify that the interface works and that the features match the stated functionality, but also to ensure that the system truly solves user problems, processes data correctly, and generates accurate responses to requests.

We expect the candidate to:

• Demonstrate a high level of responsibility, attention to detail, and an understanding that even minor issues in a MilTech product can be critical.
• Show initiative in their testing approach and not limit themselves to formal feature checks.
• Be committed to continuously developing their QA skills and professional expertise, and communicate effectively with different stakeholders.
• Have 2+ years of commercial experience in Manual QA at the Middle level or above.
• Be able not only to find bugs, but also to identify their causes and sources through log analysis, browser developer tools, debugging, and system behavior analysis.
• Understand how HTTP REST APIs work and be able to use tools such as Postman for testing.
• Be familiar with data formats such as JSON, YAML, and XML.
• Understand the basic principles of working with Git, be familiar with deployments, different environments, and semantic versioning.
• Have a solid understanding of the testing process and hands-on experience with core testing artifacts. 
• Ability to work with requirements, conduct requirements testing and exploratory testing, create checklists, test cases, and bug reports, prepare test run reports, and perform smoke and ad hoc testing. 
• Have experience in requirements analysis, test design, defect tracking, and supporting risk management processes.
• Understand why testing across different environments, operating systems, and browsers is necessary, and how to ensure it is done effectively.
• Be ready to work from the office in Kyiv, at least during the product onboarding stage and team integration.

Not required, but would be a plus if you have:

• Experience working with SaaS products or analytical platforms.
• Any experience in test automation, programming, or writing scripts to speed up tasks.
• Understanding of SQL or Cypher queries.
• Relevant QA certifications.

We offer:

• The opportunity to work on national-scale projects with real practical impact.
• Professional growth in a team of strong specialists. The opportunity to build your own QA team and gradually move into Automation QA, if desired.
• An office in Kyiv with a generator and uninterrupted internet access.
• Military deferment.

Our client, a high-tech defense company at the forefront of innovation, is looking for a Account Specialist. 

This role is a unique opportunity to join a team working on projects of strategic importance for the country’s defense. Account Specialist will be responsible for nurturing strong client partnerships and delivering proactive support to meet their needs. Your role includes managing daily account activities, resolving inquiries, and coordinating cross‑functional teams to ensure exceptional service. You’ll help optimize account performance and contribute to long‑term customer success. 

Responsibilities: 

• Manage and develop relationships with clients; 
• Handle incoming client requests and provide timely support; 
• Assist in processing orders, quotes, invoices, and related documentation; 
• Coordinate with internal teams (sales, logistics, technical support); 
• Monitor client satisfaction and proactively resolve issues; 
• Maintain accurate records in CRM systems; 
• Prepare reports on client activity and performance. 

Skills Requirements: 

• 2+ years of experience in account management, sales support, or customer success; 
• Understanding of B2B sales processes; 
• Strong communication and interpersonal skills; 
• Ability to manage multiple tasks and prioritize effectively; 
• Attention to detail and problem-solving mindset; 
• Experience working with CRM systems;  
• Self-motivated with a proactive attitude.  

The Company Offers: 

• Official employment with a competitive salary and clear, transparent cooperation terms;  
• Paid vacation (24 calendar days per year) and paid sick leave;  
• Support for your professional development — the company is actively growing, and you will have the opportunity to grow with it;  
• Military reservation;  
• A team of like-minded professionals working toward a common goal. 

We are looking for a developer with strong experience in Rust and Python.
The project is already live: the core is written in Rust, while integrations and business logic are implemented in Python.

Responsibilities:

• Maintain and further develop an existing project (Rust + Python).
  
   
• Optimize performance and fix bugs.
  
   
• Participate in fast release cycles and bug-fixing processes.
  
   

Requirements:

• Strong Python skills (3.8+), preferably with experience in data/web libraries.
  
   
• Experience with Rust or willingness to quickly dive into it.
  
   
• Confident JavaScript knowledge.
  
   
• Experience working with data: AI / data analysis, CSV, Excel, Google Sheets.
  
   
• Understanding of multithreading, API integrations, and system-level tools.
  
   
• Ability to quickly navigate an existing codebase and solve tasks independently.
  
   

Nice to have:

• Experience with CI/CD, Docker, GitHub Actions.
  
   
• Knowledge of code security practices and secret rotation.
  
   
• Familiarity with data / fintech ecosystems (Pandas, Polars, etc.).

Position Overview

We are seeking an experienced Data Scientist/ML Engineer specializing in neural networks, with 3+ years experience in the applied field. The ideal candidate should be a great mentor and team player; python ninja with a strong background in various neural network architectures (recurrent, convolutional, feedforward, etc.) and a deep understanding of developing, tuning, and deploying different architectures. This role also requires excellent Python programming skills and a solid foundation in data analysis and statistics. If you strive in a fast pace environment, with tight deadlines but fast professional growth, you are welcome in our team!

Key Responsibilities:

• Create statistical summaries to support hypothesis testing and data-driven decisions during EDA
• Implement data preparation and feature engineering pipelines for the models
• Plan and implement algorithms for predictive modeling.
• Provide continuous improvement of models in production
• Lead the ML-driven python coding for end to end model deliveries, support our ML-related libraries/
• Collaborate with a cross-functional team of specialists, including senior and junior data scientists, Python developers and ML engineers, data analysts, and DevOps specialists.
• Provide expertise in tuning loss functions, metrics, sample weights adjustment, hyperparameter tuning and model improvement in general.
• Generate detailed evaluation reports, summarizing key findings and presenting actionable insights to stakeholders.
• Keep up with tight deadlines, agile environment of work with evolving objectives and KPIs, having the highest level of organisation and self management to provide a full work clarity, extensive tracking and documentation of your work.

Required Skills and Qualifications:

• Minimum of 3 years of professional experience as a Data Scientist or Machine Learning Engineer.
• Proficient in building custom neural networks using PyTorch.
• Strong experience with various neural network architectures specialised for time-series modelling and tabular data predictive modelling 
• Proficiency with neural network layers (like LSTM, GRU, Conv1D, Dense, Dropout, BatchNormalization) and activation functions (ReLU, Sigmoid, Tanh, Softmax).
• Experience with time series data, including loading, cleaning, and feature engineering using libraries like pandas, numpy. Knowledge of Darts library would be a large bonus.
• Expertise in model development, including selecting and developing models from the Darts library and building custom neural network architectures.
• In-depth knowledge of Python programming and relevant libraries (e.g., Scikit-learn, Pandas, PyTorch, Shap). We want to emphasize this requirement of excellency in python, including good working OOP knowledge. We do noе accept candidates with partial experience in python, as our projects require solid programming skills for writing and supporting data science related functionalities and libraries
• Solid understanding of statistics and data analysis.
• Skilled in using and tuning loss functions such as MSE, MAE, Cross-Entropy Loss, and custom loss functions relevant to time series forecasting.
• Experience with hyperparameter optimization using libraries like Optuna or Hyperopt.
• Capable of implementing and optimizing training loops in PyTorch, including data loaders and training validation steps.
• Knowledge of time series-specific cross-validation techniques and regularization methods to prevent overfitting.
• Strong skills in evaluating model performance using metrics like MSE, RMSE, MAE, MAPE, and R-squared.
• Familiarity with backtesting functionalities for validating model performance.
• Experience in model deployment, including serialization and deployment of models for real-time services.
• Strong communication skills for presenting findings and progress to stakeholders, using visualizations created with matplotlib, seaborn, or plotly.
• Proficiency in using Git for version control and collaboration.
• Major education in Data Science, Computer Science, or a related field IS A MUST. We do not accept people with other backgrounds.
• Certifications in deep learning are preferred.
• Excellent command of spoken and written English.
• Strong self-management, time management, and organizational skills.

• Ability to work under a structured management system while independently handling creative tasks.

   

What We Offer:

• Competitive remuneration package.
• Bonuses
• Professional mentorship and guidance from experienced team members.
• Opportunities for professional growth and continuous learning.
• A dynamic and collaborative work environment.
   

About DataObrii
DataObrii is a high-tech consulting firm specializing in data science, machine learning, and AI-augmented Internet of Things. Our team comprises experienced data scientists, python engineers, devops, hardware electrical engineers, and business analysts dedicated to delivering innovative, data-driven solutions that enhance business intelligence and efficiency. We emphasize continuous improvement, keeping up with current and emerging technologies, and delivering complete timely, effective solutions.

Our Values:

• Efficiency: We employ an agile approach to ensure timely delivery of high-quality solutions. This governs fast delivery cycles, quick and efficient solutions, iteratively going from PoC developments to fully enhanced production systems.
• Professionalism: Our commitment to excellence drives us to achieve success for our clients. This includes both technical and ethical proficiency required from all our employees.
• Creativity: We utilize design thinking to develop innovative solutions that address complex business challenges.
• Care: We invest time in understanding our clients' business models to provide tailored solutions that align with their objectives.
   

We are looking for a Creative Marketing Lead to join United Tech and take full ownership of the creative strategy behind our paid traffic performance. This role is your chance to make a direct impact on high-growth products in a highly competitive niche (US/UK/CA/AU markets), where every idea and decision truly matters. You will be responsible for developing and executing a creative marketing strategy, leading the full production process from concept to final asset, and building a strong creative team from the ground up. Expect the freedom to drive bold initiatives, make independent decisions, and influence key business results,  all in a fast-paced, bureaucracy-free environment

About the product:  We operate in the fast-growing social networking space that’s transforming how people connect online in a live-streaming segment that is growing by over 21% annually. We build products that combine streaming, video content, interactivity, and communities, with a focus on the global market. One of our flagship products is an ad-free international streaming platform where users engage in real time through video chats and live broadcasts. But that’s just part of our ecosystem, we’re also developing other products within the niche, each with its own mechanics, audience, and monetization model. Our team tackles complex analytics, AI solutions, personalization, and the scaling of high-load systems. If you’re passionate about shaping the future of social networking, we’d love to have you on board!

.    In this role, you will

• Deliver ad creative concepts and iterations that align with key KPIs for multiple products
• Support and improve the creative production pipeline in close collaboration with User Acquisition Managers
• Manage and grow the Creative Marketing team, including Designers and Creative Marketing Managers
• Plan and coordinate team workflows to ensure timely and effective output
• Track and report on the performance of creatives and team members
• Set up and maintain efficient creative marketing processes
• Develop and refine a testing methodology for ad creatives to improve performance and scalability
• Motivate the team through regular meetings, feedback sessions, and performance checkpoints

.    It’s all about you

• 1+ year of experience leading a creative marketing team of 3 or more people
• Basic understanding of User Acquisition and Performance Marketing
• Proven experience in generating and developing creative concepts
• Solid workload management and deadline adherence
• Hands-on experience with creative testing approaches
• Strong leadership and team motivation skills
• Strategic thinking with focus on achieving product KPIs
• Excellent communication and presentation skills
• English level B2+
• Team-oriented mindset and strong communication skills

      Would be a plus: 

• Experience with video chat or live-streaming products

What we offer

      Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• 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
• Final Interview
• Reference check
• Offer

Join a fast-moving product team where your ideas matter. You will have the freedom to drive your own strategy, work without bureaucracy, and make a real impact on a global scale. We work in highly competitive Tier-1 markets (US, UK, CA, AU), and we love the challenge!

About the product: It is a web communication platform connects users worldwide with a wide range of features. Launched in 2020, it has passed all MVP testing stages and attracts a growing number of long-term users. The platform enables 24/7 communication and content sharing without compromising performance or user experience. With a focus on high-load handling, excellent UX/UI, and a unique monetization strategy, we offer a top-tier product in the market. Our global goal is to become a top 5 international social networking service, with plans to expand into Latin American and Asian markets

In this role, you will

• Plan, launch, and optimize ad campaigns via Google Ads
• Analyze campaign performance, draw insights, and plan next steps
• Run and assess tests to improve qualitative metrics
• Identify growth opportunities and scale high-performing campaigns
• Build and implement strategies for media buying and scaling
• Collaborate on ad creatives and landing page testing
• Conduct market and competitor research

It’s all about you

• 2+ years in a PPC or User Acquisition role
• Proven hands-on experience with Google Ads campaign setup and optimization
• Comfortable working with $100K+ monthly budgets
• Strong analytical mindset and data-driven decision-making
• Upper-Intermediate English (B2+)
• Goal-oriented and proactive
• Background in product companies or cross-functional product teams
• Familiarity with the social networking or similar competitive niches
• Understanding of Tier-1 markets and their specifics
• Understanding of digital marketing technologies, including web analytics (GTM/GA4), data visualization tools (Tableau/Looker Studio/Power BI), social marketing, and website usability
   

What we offer

Care and support: 

• 20 paid vacation days, 15 sick leave days, and 6 additional days off for family events
• 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
• Test Task
• Final Interview
• Reference check 
• Offer