Jobs

Role Summary

The Inventory & Demand Planning team is hiring a Data Analyst to scale a high-impact analytics roadmap across inventory, in-stock, supply, and forecasting. This role builds and maintains the data foundation that powers decision-making by translating business rules into reliable datasets, automating recurring KPI outputs, and supporting the ABC/XYZ + lifecycle governance framework so leaders and merchants operate from consistent, auditable numbers with minimal manual effort.

This is a hands-on analytics engineering role centered on data pipelines, automation, and metric integrity to enable planning decisions and streamline reporting/governance outputs. The analyst will partner closely with Inventory Planning leadership to implement definitions, validations, and scalable reporting.

What You’ll Work On

· Build and maintain curated BigQuery tables/views that standardize inventory, demand, availability, open POs/in-transit, backorders, and KPI feeds.

· Write clean, performant SQL that powers weekly/monthly reporting and executive dashboards.

· Automate refreshes and reduce manual effort through validations, reconciliations, exception flags, and clear documentation.

· Support ABC/XYZ roadmap execution by producing required inputs/outputs, applying multiplier logic, and keeping the classification pipeline stable and easy to audit.

· Support forecasting improvements using Python (data prep, feature engineering, back-testing, evaluation) and help operationalize outputs into cadence reporting.

· Expand datasets with additional signals where available (promo flags/types, merchandising tags, launch/NPA indicators, traffic/CVR signals, marketing calendar attributes).

· Partner with Merchandising, Marketing Ops, Finance, and BI/IT to align definitions, improve data quality, and drive adoption of standardized metrics.

How Success Will Be Measured

· KPI tables and dashboard feeds refresh reliably with minimal manual intervention.

· Faster turnaround on leadership and merchant requests with consistent, traceable metric logic.

· ABC/XYZ outputs are accurate, on-time, and easy to maintain.

· Forecast inputs improve through better data structure and added business/marketing signals.

· Documentation and change control keep datasets stable as business rules evolve.

Required Qualifications

· 3–5 years in analytics/data roles (retail/e-commerce strongly preferred).

· Strong SQL and hands-on experience with BigQuery (or similar cloud warehouse).

· Working Python proficiency for analysis/automation (pandas/NumPy).

· Experience supporting BI dashboards and recurring reporting.

· Demonstrated ability to validate and reconcile metrics across sources, troubleshoot discrepancies, and document logic clearly.

· Strong problem-solving, attention to detail, and clear communication with business stakeholders.

Preferred Qualifications

· Familiarity with ML/forecasting workflows (feature engineering, evaluation, operationalizing outputs) to support forecasting and driver-based models in partnership with the team.

· Familiarity with Looker/LookML (or similar semantic layers).

· Exposure to dbt and/or orchestration tools (Airflow/Composer or equivalents).

· Comfort with inventory/planning concepts (WOS, aging, availability, lost demand, backorders) and classification/ranking approaches (ABC/XYZ, PFEP).

· Version control (Git) and basic engineering hygiene (testing, documentation, change logs).

Tools / Environment

BigQuery, SQL, Python, Looker, Jira/Confluence (or equivalent), Google Cloud tooling as applicable.

We’re looking for a mid–senior DevOps Engineer to join a small, hands-on team that owns the infrastructure.

We run a hybrid environment: Azure plus bare metal (Hetzner and on‑prem server rooms), Talos Kubernetes, and a modern observability and GitOps stack.

You will:

• Run and evolve our Kubernetes platforms (Talos on bare metal, AKS on Azure).

• Own Infrastructure as Code and GitOps-driven delivery.

• Improve reliability, observability, security, and cost efficiency of production systems.

• Work in a fully remote, global, highly asynchronous team with a lot of autonomy.

You don’t need every single item, but you should recognize yourself in most of these:

• 4+ years in DevOps / SRE / Infrastructure roles with production ownership.

• Strong hands‑on experience with Kubernetes (self‑hosted and/or AKS).

• Practical experience with Terraform and Ansible.

• Experience building and running CI/CD with GitLab CI and/or Azure DevOps.

• Strong Linux fundamentals, troubleshooting, and scripting in Bash and/or Python.

• Good understanding of networking (TCP/IP, DNS, VPNs, load balancers, firewalls).

• Experience working with Azure (subscriptions, basic networking, identity, security concepts).

• Exposure to Prometheus / Grafana / Zabbix or similar monitoring tools.

• Excellent communication skills and very strong written and spoken English.

• Comfortable working in a fully remote, asynchronous, global team with high autonomy.

Nice to have

• Experience running globally distributed, customer‑facing SaaS or energy/IoT systems.

• Production use of OpenTelemetry (OTEL) and modern observability stacks.

• Hands‑on with Talos Kubernetes and hybrid Azure + bare‑metal setups.

• GitOps at scale with Argo CD and self‑managed GitLab (SCM, runners, registry).

• Operating ClickHouse at scale (backup/restore, performance, retention).

• Keycloak / OIDC / SAML, ELK/Wazuh, SAST/DAST, or other security tooling.

• Background in bare‑metal operations (servers, storage, virtualization, networking).

Role

We are looking for a Sales Manager / Account Executive who can bring 2–3 new DevOps clients per month.

This is not a generic IT sales role.
You will be selling technical infrastructure services to CTOs, founders and engineering teams.

You must understand:

• cloud infrastructure
• DevOps workflows

• how startups build and scale infrastructure

   

  Responsibilities:

• Generate and close new DevOps service contracts
• Work with inbound leads and generate outbound opportunities
• Sell DevOps-as-a-Service to startups and tech companies
• Lead discovery calls with CTOs and founders
• Identify infrastructure problems and position DevOpsVibe as the solution
• Work with DevOps engineers to prepare proposals
• Close deals and manage contract negotiations

Ideal Candidate

You probably worked in sales for:

• DevOps companies
• cloud consulting firms
• infrastructure providers
• DevOps outsourcing companies

Required experience:

• B2B tech sales
• selling infrastructure or DevOps services
• working with startups or SaaS companies
• communicating with CTO / engineering teams

Technical understanding of:

• AWS / GCP / Azure
• Kubernetes
• CI/CD pipelines
• infrastructure migrations

You do not need to be an engineer, but you must understand how DevOps works.

Application

Please include:

1. Your experience selling DevOps / cloud services
2. Typical deal sizes you closed
3. How you generate leads (inbound / outbound / network)

Compensation

Structure:

Base salary + commission.

Typical earnings:

• commission per deal
• uncapped commission

High performers can reach $8k–$15k+ monthly.

ABOUT US:
Our Mission: Empowering Your Digital Transformation

Our DevOps as a Service offering provides a comprehensive range of solutions, meticulously tailored to meet the unique requirements of each client. We specialize in streamlining development and operations, automating workflows, and enabling scalable, secure, and efficient infrastructure.

Devops -Keep it for us!

We are a U.S.-based fintech startup operating in the investment and financial services space. Our distributed teams work across Poland, the United States, and Ireland, collaborating on technology-driven solutions related to stocks and investments.

Security, compliance, and the responsible handling of sensitive financial data are central to how we operate, as we build scalable products in a regulated environment.

Responsibilities

- Develop and execute automated UI & API test suites.
- Lead regression testing strategy and quality governance.
- Validate UI/UX behavior and accessibility.
- Collaborate with engineering teams on defect resolution.
- Maintain test documentation and test metrics.
- Support UAT, release readiness, and quality gates.
- Test cloud-native deployments and integrations.
Skills
- Strong automation testing experience (Playwright/WebDriver). - Understanding of regression and integration testing design.
- Knowledge of accessibility and UI validation.
- Familiarity with API testing tools (Postman, REST Assured).
- CI/CD test execution knowledge.
- Basic debugging & log analysis skills.
- Experience creating reusable test assets.

Please read before applying:

The client is building a product in the bank/investment/brokerage systems niche, and their investors have strict security and compliance requirements, where every person will go through a background check.

What does this mean?

Before making an offer, they will check whether you have violated any EU laws.

Why Poland?

The client has teams in the USA, Ireland, and Poland.

For background check — you must be a taxpayer in Poland for 2+ years.

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact.
 

The project focuses on building a cloud-based logistics analytics platform that provides standardized, high-quality reporting and insights across complex, global supply chain processes. The solution is designed to support data-driven decision-making by making logistics data transparent, reliable, and easy to consume for business users across multiple organizational units.

Built on modern cloud technologies, the platform combines scalable data warehousing, automated data pipelines, and strong data governance to transform large volumes of logistics data into trusted KPIs and analytical datasets. It plays a critical role in improving efficiency, visibility, and operational performance across the end-to-end logistics value stream.

We’re looking for someone who truly understands data flows, thinks analytically, and can see the bigger picture beyond individual tasks. If you’re curious, ask the right questions, and enjoy bringing smart ideas to the table, we’re open to some flexibility in specific requirements. Finding the right person matters more to us than ticking every box. 

Responsibilities

• Implement business logic in the Data Warehouse in accordance with functional and technical specifications
• Perform light business analysis to ensure data is delivered accurately and in a meaningful, business-relevant way
• Translate business requirements into scalable and efficient data models
• Design, build, and maintain ETL pipelines using Azure Data Factory
• Optimize data loading processes and tune query performance
• Collaborate closely with senior stakeholders on the customer side to refine requirements and propose data-driven improvements
• Actively contribute ideas and solutions to improve data architecture and pipeline reliability

Requirements

• 3+ years of experience working with Microsoft Azure and readiness to work primarily with SQL (up to 80% of the time)
• Proven experience in database development using MS SQL Server / T-SQL
• Ability to write highly performant SQL and implement performance optimization techniques
• Hands-on experience with version control systems (e.g. Git)
• Solid understanding of data warehousing concepts and dimensional modeling
• Experience working in an Agile development environment
• Practical knowledge of creating and maintaining Azure DevOps and Azure Data Factory pipelines
• Experience developing robust data pipelines using dbt
   

Nice to Have

• Experience with Databricks
• Background in Supply Chain & Logistics projects
• Familiarity with SAP MM data structures

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are hiring a Full Stack & Python AI Engineer for an international product company operating globally in the consumer and manufacturing domain. The company is building internal digital platforms focused on automation, data-driven decision-making, and AI-powered workflows used across multiple business units.

The role is part of a long-term initiative to develop and evolve core internal systems that combine modern web applications, real-time communication, and LLM-based features.

You will work across the full stack, owning features end to end, from Angular frontend components to Python backend services and AI integrations.

Responsibilities

• Develop full stack features using Angular 18+ and Python

• Build backend services with Quart (async Flask-style framework)

• Design and maintain REST APIs and WebSocket-based real-time functionality

• Implement AI-driven features using LLMs, embeddings, and RAG pipelines

• Work with vector databases (Qdrant or similar) and MongoDB

• Use Docker for development and deployment workflows

• Improve existing systems, focusing on performance, scalability, and architecture

• Collaborate with engineers and stakeholders on system design and long-term evolution

Requirements

• 7+ years of overall experience as a full stack or backend-focused engineer

• Strong hands-on experience with Python, including Flask or Quart

• Production experience with Angular (project uses Angular 18+)

• Experience building Web APIs and real-time systems

• Hands-on experience with LLMs, embeddings, and text-based AI use cases

• Experience working with MongoDB and SQL databases

• Practical experience with Docker

• Ability to work independently and take ownership of complex systems

• Professional English level

Nice to Have

• Experience with Azure

• Familiarity with LangChain or LangGraph

• Background in enterprise or manufacturing-related systems

• Experience with Django

We are hiring a Senior DPDK / Systems Engineer for a Canadian product startup building a carrier grade network intelligence platform.

The company develops a high performance deep packet inspection and traffic classification engine used in security, intelligence, and telecom environments. The core system processes network traffic at extremely high throughput with strict latency requirements and is designed for continuous operation in carrier grade infrastructures.

The product is a low level, performance critical system built around DPDK and modern systems programming practices. It operates at line rate speeds, processes tens of millions of concurrent flows, and performs deep L7 inspection, traffic classification, and shaping in real time.

In this role, you will work close to the hardware and network stack, owning critical parts of the packet processing pipeline and performance optimization, in collaboration with senior system architects and infrastructure engineers.

Responsibilities

• Design and implement high performance DPDK RX/TX pipelines with zero copy forwarding

• Build per core, lock free flow tables supporting tens of millions of concurrent flows

• Implement L7 protocol parsing including HTTP, TLS SNI, DNS, QUIC, and custom protocols

• Develop application and traffic classification using signature based and ML assisted approaches

• Implement traffic shaping and QoS mechanisms such as hierarchical token bucket

• Integrate high performance pattern matching using Hyperscan

• Perform deep performance optimization using SIMD, cache tuning, and NUMA aware design

• Profile and debug performance bottlenecks using tools such as perf, VTune, or similar

• Work closely with hardware, infrastructure, and backend teams to ensure end to end system efficiency

Requirements

• 5+ years of hands on experience with DPDK in production systems, not research or prototypes

• Strong systems programming background in C++ or Rust, with willingness to work in Rust

• Deep understanding of poll mode drivers, mbufs, lockless data structures, and NUMA architectures

• Solid knowledge of TCP/IP stack internals and packet level protocol parsing

• Proven experience building and optimizing low latency, high throughput network systems

• Strong debugging and performance analysis skills

• Ability to work independently on complex, low level technical problems

• English level sufficient for technical discussions in an international engineering team

Nice to have

• Experience working at networking vendors or telecom equipment companies

• Background in carrier grade DPI systems

• Hands on experience with traffic shaping or QoS implementations

• Experience with ML inference pipelines such as ONNX Runtime

• Familiarity with eBPF, XDP, or kernel bypass techniques

• Experience with hardware offload technologies such as Flow Director or SR IO V

This is a long term opportunity to work on a technically extreme system at the core of a growing Canadian startup, solving hard performance problems at scale and building software that operates at the limits of modern networking hardware.

Affiliate Manager (iGaming) – Join RoyalFlush Affiliates!

We are a rapidly growing casino affiliate network, working with top casino brands worldwide. We are looking for an experienced Affiliate Manager with a strong portfolio to join our team and drive high-quality traffic to our partners.

https://royalflushaffiliates.com
 

Responsibilities:

Manage, and build relationships with affiliates.
Develop and execute strategies to maximize affiliate performance.
Negotiate deals and commissions to ensure optimal profitability.
Analyze campaign performance and optimize traffic sources.
Stay up to date with industry trends to identify new opportunities.
 

Requirements:

✅ English B2+

✅ Great written and verbal communication skills.

✅ Proven experience as an Affiliate Manager in the iGaming industry.
✅ Strong portfolio of successful affiliate partnerships and networks.
✅ Knowledge of affiliate marketing platforms, analytics, and tracking tools.
✅ Excellent negotiation and relationship-building skills.
✅ Ability to analyze data and optimize traffic sources.
 

What We Offer:

Competitive fixed salary + high-performance bonuses.
Work with exclusive casino deals and high-payout programs.
Flexible schedule & remote work options.
Growth opportunities in a leading affiliate network.

Ready to take your affiliate career to the next level? Apply now!

Remote work.

Online interview in English!

Business Developer

🌍Location: Porto, Portugal

⌛️Dates: 1 June - 23 July 2026

💸Salary: unpaid

📋Background: Marketing, Communication and journalism, Business administration

This is an opportunity to gain experience in an international business environment and also improve your English.

Responsibilities: Offline job in Portugal. Good knowledge in CRM. Talk with partners. Understand the sales process of the company. Knowledge of marketing tools

Who we are:
Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product:

Zenity is the first security governance platform built specifically for AI Copilots, Low-Code/No-Code applications, and business-led development. Enterprises today create thousands of automations, workflows, copilots, and integrations outside traditional R&D—introducing new, fast-moving security risks. Zenity provides organizations with:

• Real-time detection of misconfigurations, unsafe data flows, and policy violations
• Centralized visibility across hundreds of business-driven apps and automations
• Security guardrails for GenAI and LLM-powered tools
• Prioritized vulnerability reports and guided remediation

About the Role:

Zenity is hiring a Senior Backend Engineer to help drive the evolution of its security platform for AI and Low-Code ecosystems. This role is ideal for engineers who enjoy building large-scale, cloud-based systems with real enterprise impact.

You will work in a dynamic, Agile environment, contributing to the continuous development, scaling, and improvement of the platform.

Engineering Culture:

At Zenity, we work with an AI-first mindset. Our engineering teams actively leverage AI throughout the entire development lifecycle — from ideation and design to implementation and production.

If AI-assisted development is already embedded in your workflow and influences how you approach engineering challenges, this role was built for you.

Key Responsibilities: 

• Design and build backend services powering security governance for GenAI, Copilots, and Low-Code platforms
• Deliver end-to-end product features used by enterprise customers at scale
• Develop detection logic, data flows, and validation layers for complex workflows and automations
• Work with distributed systems, microservices, and cloud-native components
• Build and optimize SQL schema, queries, data models, and near-real-time processing pipelines
• Leverage AI tools (Copilot, Cursor, Claude Code, etc.) extensively as a regular and consistent part of the day-to-day development workflow: to accelerate design, implementation, refactoring, and debugging
• Participate in design reviews, collaborate closely with product and security teams, and contribute thoughtful technical decisions
• Implement security-focused backend solutions that help enterprises adopt AI responsibly

Required Competence and Skills:

• 7+ years of experience in backend software development (Python, Java, Kotlin, C#, Go, Node.js, Scala) with proven delivery of production features, working on core product systems with real user impact
• Strong SQL fundamentals; hands-on experience with PostgreSQL/MySQL plus familiarity with MongoDB or DynamoDB
• Strong SQL fundamentals; hands-on experience with PostgreSQL/MySQL plus familiarity with MongoDB or DynamoDB
• Experience building distributed systems or microservices, including observability and CI/CD automation
• Experience working with AI agents or copilots (e.g. GitHub Copilot, Cursor, Claude Code, or similar) as part of your daily development workflow
• Understanding of AI-first development principles, such as prompt/context engineering, human-in-the-loop workflows, and validation of AI-generated code
• Solid cloud background (AWS preferred) and hands-on work with Docker and container-based deployments
• Experience contributing to high-scale or customer-facing products
• Experience designing ETL/ELT pipelines or large-scale data systems
• Strong communication skills in English, plus experience collaborating with distributed teams
• Ownership mindset and the ability to take a feature from design to production

Nice to have:

• Background in data engineering, streaming, or maintaining near real-time data pipelines
• Hands-on with Kubernetes
• Experience with workflow orchestration (Temporal, Cadence, or similar)
• Ability to work across multiple languages (Python + Go or Node.js)

Golden Panda Marketing is an international, performance-driven affiliate company. We don’t just "build brands"—we connect people with products that genuinely improve their lives (Health & Lifestyle) and scale them via paid traffic.

We are obsessed with measurable ROI, data-driven decisions, and moving fast. If you are a Google Ads expert who thrives on scaling profitable campaigns, we want you on our team.
 

What You’ll Do

• Launch & Scale: Take full ownership of launching, testing, and scaling Google Ads campaigns from scratch.
• Multi-Channel Strategy: Work primarily with Demand Gen, Search, and Display (depending on your specific expertise and performance).
• Data-Driven Optimization: Constantly optimize toward strict KPI targets (CPA/ROAS). We value speed and data over guesswork.
• Budget Management: Manage and allocate budgets across various GEOs and campaigns, doubling down on winners.
• Creative Innovation: Collaborate with the team to test new creatives, angles, and landing pages to stay ahead of the market.

Requirements

• Experience: 2+ years of hands-on experience as a Google Media Buyer or Performance Marketer (ideally within Health, Lifestyle, or E-commerce niches).
• Profitability: A proven track record of running campaigns independently and scaling them profitably.
• Analytical Power: Strong grasp of core metrics (CTR, CPC, CVR) and a deep understanding of unit economics (CPA/ROAS).
• English Proficiency: Comfortable working in English (both written and spoken) within an international environment.
• Agility: A "move fast" mindset and the ability to pivot strategies based on real-time data.

What’s In It For You

• 100% Remote: Work from anywhere in the world.
• Uncapped Earning Potential: A competitive base salary (fix) plus high performance-based commissions.
• Resources: Access to the budgets and tools you need to hit your targets without bureaucratic hurdles.
• Direct Impact: Your results are visible, and your ideas are implemented quickly.

Ready to scale with Golden Panda? Send us your CV and a brief overview of your best performance cases.

BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. ‍Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.

We're looking for an experienced Senior HTML/Markup Developer to join our development team in Lisbon, Portugal!

✅ Responsibilities:
✔️ Develop efficient, fast, and adaptive layouts of interfaces;
✔️ Collaborate with developers and web designers to improve the product;
✔️ Introduce ideas, solutions, and optimize existing applications.

✅ Requirements:
✔️ 5+ years of professional experience as an HTML coder;
✔️ Excellent knowledge of HTML and CSS;
✔️ Good understanding of UI/UX design and cross-browser layout;
✔️ Strong knowledge of CSS/JS animation;
✔️ Experience working with CSS Pre-Processors: Sass/Less;
✔️ Understanding of web application performance optimization;
✔️ Experience with Figma / Sketch / Photoshop;
✔️ Advanced level of English.

✅ Nice to Have:
✔️ Understanding of front-end build tools (Gulp, Webpack, etc.);
✔️ Knowledge of HTML email templates;
✔️ Experience working with CSS frameworks;
✔️ Experience working with template engines (Pug, Handlebars, etc.);
✔️ Experience with Canvas API / WebGL / ThreeJS / GSAP.

✅ We offer excellent benefits, including but not limited to:
🧑🏻‍💻 Learning and development opportunities and interesting, challenging tasks;
✈️ Relocation package (flight tickets + 2-week hotel stay);
📚 Language development support and partial compensation for classes;
🎁 Birthday celebration gift;
🏝 24 working days of Annual Vacation for proper rest.

Join BrainRocket and rock with us! 🚀

We are looking for a true Polyglot Engineer to join our team for a long-term collaboration. In the fragmented world of Web3, the ability to bridge different technologies is a superpower. We need a specialist who can architect and build the critical off-chain infrastructure that powers decentralized applications. If you are proficient in Rust but comfortable diving into C++, Python, and Node.js to get the job done, this role is for you.

Who are we?

We are Out Of The Box Systems: a Ukrainian team of passionate, battle-tested engineers and creators united by one goal—delivering real results with clarity, precision, and autonomy. We champion a flexible, pragmatic approach over rigid, static processes. While our roots and primary team are in Ukraine, we collaborate with top talent from various labor markets. We specialize in demanding fields like Rust-first development, AI Engineering, and Computer Graphics, blending performance, security, and innovation into every project. We are deeply invested in the growth of our team members, believing that a person's ability to learn and their openness to feedback are the true keys to long-term success. Our team thrives on solving hard problems and doing the heavy lifting so our clients don’t have to.

Workload

• Full-time, remote collaboration.
• Flexible schedule, with expected availability for team syncs.
• Project-based workload with a focus on clear deliverables.

Responsibilities

• Design, implement, and maintain high-performance backend services and indexers using Rust as the primary language.
• Integrate with diverse blockchain nodes and legacy systems, utilizing C++ for performance-critical modules or native bindings.
• Develop robust APIs and tooling scripts using Node.js and Python to ensure seamless interaction between on-chain data and client applications.
• Architect scalable data pipelines that can handle the asynchronous nature of blockchain events reliably.
• Act as a bridge between technologies, mentoring team members on how to effectively navigate a multi-language stack.

Required Skills

• Polyglot Proficiency: You must be comfortable working in a multi-language environment.
  • Rust: Strong proficiency for core backend logic and safety.
  • C++: Experience with systems programming, reading legacy code, or performance optimization.
  • Python: Proficiency for data processing, testing frameworks, or rapid scripting.
  • Node.js: Experience with the JS/TS ecosystem, particularly for Web3 SDKs and lightweight services.

• Backend Architecture: Deep understanding of API design (REST/gRPC), database modeling (SQL/NoSQL), and microservices.
• Distributed Systems: Understanding of eventual consistency, message queues, and handling asynchronous events.
• Intellectual Flexibility: The ability to pick the right tool for the job and adapt quickly to new libraries or protocols.
• English Proficiency: Upper-Intermediate (B2) or higher.

Preferred Skills

• Ethereum & EVM: Deep understanding of the Ethereum ecosystem, JSON-RPC standards, event logs, and ABI decoding.
• Major Chains: Experience integrating with other major networks (Solana, Near, Cosmos, or Bitcoin).
• Blockchain Nodes: Experience running or modifying nodes (e.g., Geth, Casper Node, Substrate).
• DevOps: Experience with Docker, Kubernetes, and CI/CD pipelines.
• Cryptography: Basic understanding of cryptographic primitives used in blockchain (hashing, signatures).

What you get

• The opportunity to work on complex, high-impact infrastructure projects where your versatility is a major asset.
• A transparent, friendly, and supportive team environment that values ownership and competence.
• A clear path for growth, where you are encouraged to experiment with and master new technologies.
• Competitive compensation based on your skills and experience.
• This is a long-term collaboration based on a 2-year B2B contract, reflecting our mutual investment in your growth and success with our team.

Data Science UA is a service company with deep expertise in AI and Data Science. Our story started in 2016 with the first Data Science UA Conference in Kyiv, and since then, we’ve built one of the largest AI communities in Europe.

About the role:
We are looking for a hands-on Sr. Machine Learning / Computer Vision Engineer with strong practical experience in designing, training, evaluating, and improving vision systems for real-world applications. The ideal candidate combines solid theoretical ML/CV fundamentals with an engineering mindset and is comfortable taking ownership of the full pipeline, from data preparation and experimentation to model optimization and deployment.

Responsibilities:
- Design, train, evaluate, and improve machine learning and computer vision models for real-world production use cases
- Build and maintain end-to-end ML pipelines, including data collection support, preprocessing, feature engineering, training, validation, and inference
- Develop solutions across both computer vision and machine learning tasks depending on business needs
- Perform error analysis, diagnose model weaknesses, and drive improvements in accuracy, robustness, and reliability
- Select and justify appropriate methods and model architectures based on dataset characteristics, product constraints, and deployment requirements
- Work with challenging real-world data, including noisy, limited, imbalanced, or weakly labeled datasets
- Collaborate with engineering and product teams to translate business problems into practical ML solutions
- Contribute to production-ready development with a focus on maintainability, reproducibility, and performance

Requirements:
- 3–5+ years of professional experience in Machine Learning / Computer Vision
- Strong senior-level practical expertise in computer vision, machine learning, and applied model development
- Hands-on experience with tasks such as object detection, image classification, anomaly detection, feature-based approaches, or similar
- Solid understanding of classical ML methods, including tree-based models, linear models, feature engineering, model selection, and evaluation
- Strong Python skills and practical experience with PyTorch, OpenCV, and common ML tooling
- Experience building full ML workflows including data preparation, augmentation, preprocessing, training, validation, testing, and deployment handoff
- Strong understanding of model evaluation, debugging, overfitting, generalization, optimization, and experiment-driven improvement
- Ability to write clean, modular, maintainable code and independently own technical solutions
- Strong analytical thinking, engineering maturity, and problem-solving skills

Nice to Have:
- Experience in adjacent ML domains such as time-series, audio, or NLP
- Experience with embedding-based methods, metric learning, retrieval systems, or memory-bank approaches
- Practical experience with model optimization techniques such as quantization, pruning, distillation, or related efficiency-focused approaches
- Experience working with real-world industrial datasets and ambiguous problem formulations
- Knowledge of software engineering best practices, reproducible experimentation, and pipeline design

We offer:
- Free English classes with a native speaker and external courses compensation;
- PE support by professional accountants;
- Medical insurance;
- Team-building events, conferences, meetups, and other activities;
- There are many other benefits you’ll find out at the interview.