Jobs at Djinni

Backend & Infrastructure Engineer (Go, PostgreSQL, Airflow)

Remote — Europe · Full-time contractor (B2B)

About Soco

Soco is a social commerce scale-up driving hundreds of millions in revenue for e-commerce brands on TikTok Shop. Over 7,000 TikTok Shop affiliates use our iOS app to find top products, land brand deals, and track what's working.

TikTok Shop lets creators earn commissions by promoting products through videos and live streams — content becomes commerce, and creators earn when their audience buys through their links. We make that easier and more profitable.

The role

You'll own our backend infrastructure and data pipelines. Today that work sits with our lead engineer, and it's pulling him away from product — we want someone who takes it properly, makes it reliable, and then improves it.

Concretely:

• Run and improve our on-prem deployments (Linux, Ansible, systemd)
• Own PostgreSQL: schema design, query performance, migrations, backups
• Build and maintain Airflow DAGs for our scraping and data pipelines
• Build out monitoring and observability (Prometheus, Grafana) — mostly from scratch
• Write and maintain backend services and APIs in Go
• Work with QuestDB for time-series data at scale

What we need

• Strong PostgreSQL: you've designed schemas, tuned slow queries, and handled migrations on a live database
• Comfortable owning Linux servers — deployments, debugging, backups, being the person who fixes it when it breaks
• Experience building data pipelines, ideally with Airflow
• Go experience, or a backend background (Python, Java, etc.) and the confidence to pick Go up quickly — we'd rather have excellent Postgres and ops skills than years of Go
• Good written English and able to work async with a European-hours team

Nice to have, not required

QuestDB or another time-series database · n8n · web scraping, including JS-rendered pages · Prometheus/Grafana · Python

If you haven't touched QuestDB or n8n, that's fine. Anyone who knows Postgres well picks them up in days.

What we offer

• $2,500–4,500/month depending on experience, paid as a B2B contractor
• Fully remote within Europe
• A small team where your work ships immediately and you see the impact
• Real ownership of the infrastructure, not tickets handed down to you

Job Description

Experience in Software Testing: 4+

Experience in Test Automation: 1+

Experience guiding junior/middle QA engineers and driving the testing activities.

Functional Testing
Basic understanding of HTTP, REST APIs, tools like Postman, Swagger, and browser dev tools
Software design basics - OOP, Page Object Model
Hands-on experience with different types of test automation
Excellent communication skills
Analytical mind and problem-solving aptitude

Experience in software QA methodologies, tools and processes
Proven test design skills
Deep understanding of modern test automation patterns and standards
Understanding of OOD
Effective time management
Fluent in spoken and written English

Will be a plus:

CI/CD setup experience

Personal Qualities:

Proactive with a strong sense of urgency and competitive drive
Enthusiastic communicator
Adaptable
Embraces change
Collaborative team player
Customer service minded
Strong attention to detail, organized and goal-oriented
 

Job Responsibilities

Participate in the creation of critical project-level artifacts
Create/improve custom frameworks and tools (.Net stack)
Perform code review
Investigate issues to provide accurate and reproducible info to the dev team
Strictly follow QMS procedures and processes
Provide status reports on time
Participate in QA Initiatives, collaborate with other test engineers
 

Department/Project Description

Client is a leading global Contract Research Organization (CRO) that provides Phase I-IV clinical trial management, market access, and technology solutions with over 30 years of experience.

*This is a full-time hybrid role that combines the flexibility of remote work with the collaboration of office days.

Location: Dnipro (1-2 days in the office minimum / 3-4 days remote)

Working Hours: 12:00 — 20:00 Kyiv time

Commute: Fully covered corporate taxi for all your office days.

Come for the mission. Stay for the experience.

Let’s keep things simple: we are an unbelievably talented, hard-working, and compassionate team driving towards a mission that impacts every single one of us — even you!

Healthcare benefits are complex, underutilized and a mystery for most users. We’re removing that complexity. Now more than ever, employers are adding value to their employees’ benefits like telemedicine and mental health services. HealthJoy’s industry-changing tech platform consolidates those benefits into a simplified benefits experience, saving users time and money.

With over $100M in fundraising to date, and the successful closing of our recent Series D, HealthJoy has garnered workplace awards for Inc.’s Fastest Growing Startups and Built In Chicago’s Best Places to Work while growing globally to nearly 400 team members. We’re continuing down the path of high growth and high impact, and this role is a key member of the IT & Cybersecurity making that happen.

Your impact.

• Handle the imaging and deployment of user IT equipment (Laptops, Monitors, Keyboards, Mice, etc.)
• Execute excellent support for new and existing employees both onsite and remotely, ensuring that all support requests are addressed promptly and effectively
• Maintain Inventory of IT equipment for users on-site
• Monthly SaaS audits for users/licenses not using tools
• Manage and handle tickets within the IT ticketing system as well as communication platform(s) via Email and Slack; Serve as Tier 1 and 2 contact points for IT issues
• Proactively identify opportunities for process improvements and contribute to the overall efficiency and effectiveness of our support operations
• Perform on site maintenance of IT equipment including network equipment, security cameras, and smartboards
• Engage with team members, sharing insights, best practices, and troubleshooting techniques to collectively enhance our support capabilities
• Proactively seek solutions and independently manage workload by efficiently prioritizing tasks, conducting thorough research, and utilizing available resources to resolve technical issues promptly
• Be a trusted and reliable team member and peer for cross-functional colleagues

Your Experience

• 6+ months of experience in Technical Support (strongly preferred)
• At least B1+ level of English proficiency, with confidence in both spoken and written communication
• Familiarity with troubleshooting OS Windows/Mac and SaaS applications
• Basic Network Troubleshooting knowledge
• Ability to work with hardware vendors and service centers
• Willingness to learn new skills in IT Support and Remote First technical environments
• Strong problem-solving skills and resourcefulness
• Excellent communication skills both written and verbal

Total Rewards

Work should be meaningful and rewarding. HealthJoy offers a robust package of employee perks and benefits, including:

• Employment: HealthJoy LLC is part of the Ukraine Diia City legal framework. On your first day, you will sign a Gig-Contract via the Vchasno system, gaining the status of a Gig-Specialist.
• Remote Work: Being a remote-first company, we do not require employees to be in office on a regular basis. Additionally, we provide the needed essential work equipment for comfortable work from home.
• Flexible Paid Time Off Programs: Prioritising efficient collaboration and communication, we offer flexibility with time off requests for vacations or personal matters leaves, trusting you to manage your time and take the breaks you need to be your best.
• Growth and Development as a Priority: We foster a culture of continuous growth through open feedback, fair performance evaluations, and ongoing development opportunities. Our annual Performance & Compensation Review Cycle recognizes each person’s contributions and supports their growth in line with business priorities.
• Learning Opportunities: Benefit from company-sponsored English classes, a corporate learning platform “Udemy Business” for professional development, and internal/external educational events.
• Healthcare: As a healthcare-focused company, we provide 100% health insurance coverage for our teammates, with the option to insure their family members at a reduced rate.
• Mental Health Support Program: Individuals have the opportunity to apply for personal therapy sessions sponsored by company or review additional virtual lectures to keep awareness around mental health support.
• Wellness Support: Access to special corporate discounts and offers at Sport Life, one of Ukraine’s largest sports hubs.

HealthJoy maintains a comprehensive strategy to determine rewarding and competitive packages for individual compensation for new hires, internal promotions and internal job changes. This strategy is based on several factors unique to each individual, including: 1) the skills, experience and qualifications of the individual; 2) the responsibilities and demands of the role; 3) analysis of external market data; and 4) company budget and financial performance.

🔹Who we are!

At Levi9, we are passionate about what we do. We love our work and together in a team, we are smarter and stronger. We are looking for skilled team players who make change happen. Are you one of these players?
 

🔹About the project

We are looking for a Senior System Administrator for our internal needs. You will work with the company’s cloud systems, participate in internal projects, and help our SysAdmin team. Please note that this is a full-time, office-based role from our Kyiv office during the first three months. After successfully completing the probation period, you will be able to work in a hybrid format.
 

🔹Requirements

Infrastructure & Networking:

• Strong networking experience, including:
  • Routers — MikroTik
  • Switches — Juniper, HP
  • WLAN — Aruba, Ubiquiti (UBNT)
  • VPN tunnels, IPSec, EoIP
  • VLANs, 802.1X, RADIUS
  • Firewalls and firewall rule management
• Strong understanding of TCP/IP, DNS, DHCP, routing, NAT and network troubleshooting.
• Understanding of network security principles, firewall rules and security best practices.
• Experience with software and hardware load balancers.
• Experience with proxy and reverse proxy technologies.
• Ability to troubleshoot complex network and infrastructure issues and identify root causes.

Microsoft / Windows Infrastructure:

• Strong experience with Windows Server administration.
• Practical experience with:
  • Active Directory Domain Services (AD DS)
  • DNS / DHCP
• DFS
• WSUS
• SCCM / Microsoft Configuration Manager
• Group Policy
• Understanding of Active Directory security, Group Policy and identity management.
• Experience with enterprise Windows infrastructure and production environments.
• Experience managing Windows devices.

Virtualization & Cloud:

• Strong experience with VMware vCenter Server and virtualized environments.
• Practical experience with Microsoft Azure.
• Good understanding of Azure infrastructure, including:
  • Virtual Machines
  • Virtual Networks, Subnets and NSGs
  • Azure Storage
  • Azure Backup
  • Azure Monitor / Log Analytics
  • Azure RBAC
• Experience with hybrid on-premises / cloud infrastructure.
• Understanding of cloud security, availability, backup and disaster recovery principles.
• Experience with cloud migrations and infrastructure optimization is an advantage.

Identity, Microsoft 365 & Endpoint Management:

• Experience with Microsoft 365 / Office 365 administration.
• Experience with Microsoft Entra ID (Azure AD), including users, groups, MFA, SSO and Conditional Access.
• Understanding of endpoint security and device compliance policies.

Security:

• Strong understanding of infrastructure and network security principles.
• Experience with firewall configuration and security policies.
• Understanding of VPN/IPSec security.
• Understanding of RBAC, MFA, least-privilege access and Zero Trust principles.
• Experience with system hardening, patch management and security best practices.

Automation & Modern Infrastructure:

• Good PowerShell skills and experience automating administrative tasks.

Monitoring, Backup & Troubleshooting:

• Experience with infrastructure monitoring and log analysis.
• Experience with backup and restore solutions.

Communication:

• Intermediate English (B1–B2 or higher).
• Ability to communicate effectively with technical and non-technical teams.
• Ability to document infrastructure, configurations and technical solutions.
   

🔹Nice to have

• Practical experience with Linux server administration, including Ubuntu Server, CentOS
• Basic understanding of Linux networking, services, permissions, logs and troubleshooting.
• Microsoft Azure certifications, especially Azure Administrator / Azure Solutions Architect.
• CCNA / JNCIA certification.
• Experience with Microsoft Defender.
• Experience with Terraform / Infrastructure as Code.
• Experience with Docker or Kubernetes.
• Experience with Azure DevOps / GitHub Actions.
• Experience with Windows Server Failover Clustering.
• Experience with enterprise firewall platforms.
• Experience with hybrid identity and Azure AD Connect / Entra Connect.
• Experience participating in cloud migration or infrastructure transformation projects.
• Experience with MDM / Endpoint Management solutions, like Microsoft Intune, Mosyle/Jamf

🔹9 reasons to join us:

1. Today we're working with the technology of tomorrow.
2. We don't wait for a change. We are the change.
3. We're experts in creating experts (Levi9 academy, Lead9 program for leaders).
4. No micromanagement. We are free birds with a clear understanding of what the high performance is!
5. Learning in Levi9 never stops (unlimited Udemy for business, meetups, English courses, Professional trainings).
6. Here you can train your body and mind.
7. We've gathered the best locations - comfortable, cozy and pet-friendly offices in Kyiv (5 minutes from Olimpiyska subway station) and Lviv (5 minutes from the Opera Theatre) with regular offline internal events
8. We have master's degree in work-life balance.
9. We are actively supporting Ukraine with constant donations and volunteering
    

Meet the YozmaTech

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

Our client is looking for an AI Builder / Full-Stack Engineer to join an early-stage startup with a very small team and a high level of ownership.

The company is building an AI-native product for the janitorial industry that automates the processing of large volumes of complex documentation, including contracts and RFPs. The product analyzes this information and generates accurate, detailed bids, including pricing, equipment selection, and task breakdowns down to the room and space level.

This role is ideal for an engineer who can take an AI capability end-to-end — from designing agents and backend systems to building the product experiences through which users interact with them. You’ll work across AI/LLM engineering, backend systems, data pipelines, and full-stack product development.

Key Requirements:
🔹 Strong commercial experience with AI/LLM engineering and backend development;
🔹 Strong Python engineering skills;
🔹 Hands-on experience building AI agents, LLM workflows, or AI-native systems;
🔹 Experience designing backend services, APIs, data pipelines, and working with databases;
🔹 Ability to work with unstructured data and build systems for processing and analyzing complex information;
🔹 Experience integrating and working with LLM APIs and AI models;
🔹 Comfortable building full-stack product features and modern web UIs;
🔹 Experience with React, Next.js, and/or Node.js;
🔹 Strong understanding of system design, data modeling, debugging, and infrastructure;
🔹 Experience testing AI systems and evaluating the quality of model outputs;
🔹 Ability to take an AI capability from agent/backend logic through to a usable customer experience;
🔹 High level of ownership and ability to independently drive technical work from architecture to production;
🔹 Comfortable working through ambiguous product and technical requirements in a fast-paced startup environment;
🔹 Pragmatic approach to engineering — knowing when to build deeply and when to ship quickly;
🔹 English – Upper-Intermediate or higher.

Will be plus:
🔹 Experience working specifically with contracts, RFPs, or other complex business documentation;
🔹 Experience building UIs for managing or interacting with AI agents;
🔹 Experience with both commercial and open-source AI models;
🔹 Previous experience in the janitorial / cleaning services industry or similar domain;

What you will do:
🔹 Design and deploy agentic AI workflows, agent harnesses, and orchestration systems;
🔹 Develop and maintain the backend for AI agents that process and analyze contracts, RFPs, and other complex documents;
🔹 Build pipelines for large volumes of unstructured data, including OCR and vision-based document and image analysis;
🔹 Integrate AI tools and models, including OpenAI, Google, and open-source models, using Python;
🔹 Build AI agent orchestration using LangChain, Deep Agents, and similar frameworks;
🔹 Build backend services, APIs, data pipelines, and core infrastructure;
🔹 Own data flows across ingestion, transformation, storage, retrieval, evaluation, and application usage;
🔹 Design and maintain databases, including Postgres and MongoDB;
🔹 Build full-stack product experiences around AI capabilities, including agent interfaces, review/approval flows, and AI-assisted workflows;
🔹 Collaborate with frontend development using React, Next.js, and Node.js to integrate AI agents into the product;
🔹 Turn structured and unstructured AI outputs into polished user-facing experiences, documents, and product workflows;
🔹 Build datasets and testing approaches for AI systems and implement evaluation metrics, including LLM-as-a-judge and statistical evaluation;
🔹 Debug model behavior, pipeline failures, data quality issues, frontend/backend integration, and system performance;
🔹 Own complex technical problems end-to-end, from architecture and implementation through production;
🔹 Build reliable, scalable, and secure systems for an AI-native product;

Interview stages:
🔹 HR Interview;
🔹 Technical Interview — 30 min;
🔹 Non-technical / Culture Fit Interview — 60 min;
🔹 Deep Technical Interview — 1 hour;
🔹 Reference Check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

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

Everyone’s welcome

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

Ready to build something meaningful?

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

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

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

Key Requirements:

🔹Strong Python and system design fundamentals — enough to make sound technical calls and catch when the AI is wrong;
🔹Experience delivering software from idea to production;
🔹Excellent system design and architectural thinking;
🔹Ability to make technical decisions independently and take ownership of outcomes;
🔹Experience working with AI coding tools such as Claude Code, Cursor, Codex, GitHub Copilot, or similar;
🔹Strong product mindset and the ability to balance technical and business priorities;
🔹Comfortable working in ambiguous, fast-moving environments;
🔹Excellent communication and collaboration skills;
🔹Ability to review, challenge, and improve AI-generated output rather than relying on it blindly;
🔹Experience building AI-native development workflows;
🔹English – Upper-Intermediate or higher.

Will be plus:

🔹Django experience;
🔹Experience with modern frontend technologies, QA automation, or full-stack environments;
🔹Experience working in product companies or startups.

What you will do:

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

Interview stages:
 

🔹 HR Interview;
🔹 Tech interview with Team Lead;
🔹 Interview with PM;
🔹 Interview with VP R&D (optional);
🔹 Reference check;
🔹 Offer.

Why Join Us?

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

From day one, you’ll get:

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

After you apply

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

Everyone’s welcome

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

Ready to build something meaningful?

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

🔹 Who we are!

At Levi9, we are passionate about what we do. We love our work and together in a team, we are smarter and stronger. We are looking for skilled team players who make change happen. Are you one of these players?

🔹 About the project

Our client is a leading media company in Western Europe, delivering high-quality content across various platforms, including newspapers, magazines, radio, TV, websites, apps, and podcasts. Their brands reach millions of people daily, shaping the media landscape with independent and trusted journalism.

🔹 Responsibilities

As a Salesforce Developer, you will work alongside our Belgian-Dutch client’s team, developing and maintaining internal systems using Salesforce technologies. You will enhance the company’s operational efficiency, leveraging cutting-edge tools to optimise content delivery and internal workflows.

🔹 Requirements
Technical skills:

• 3+ years of experience as a Salesforce Developer
• In-depth knowledge of Apex and it's core principles
• In-depth knowledge of Async Apex
• Experience in Sales Cloud, Service Cloud
• Experience with LWC
• Experience with setting up core components of Salesforce
• Knowledge about best practices in Salesforce (config & code)
• In-depth knowledge about GIT and core dev principles for DevOps
• Knowledge about Gearset or other DevOps tools is a plus
• Experience with complex managed packages is also a plus
• Experience with AI (GitHub Copilot / Claude Code)

Soft/Functional skills:

• Used to working in a multi-dev environment
• Not afraid of being pro-active and creating cases + doing follow-up with third-party vendors
• Able to communicate with business users on a non-technical level
• Experience with Jira
   

🔹 Domain logic
Knowledge of advertising/accounting processes/having worked in financial sectors would be a huge benefit!

🔹A few more important things

• We consider candidates who have at least an Upper-intermediate level of English.
• We work in a hybrid setup, so we prioritize candidates who are based in Kyiv or Lviv and can visit our office on their first working day.
   

🔹 9 reasons to join us:

1. Today we're working with the technology of tomorrow.
2. We don't wait for a change. We are the change.
3. We're experts in creating experts (Levi9 academy, Lead9 program for leaders).
4. No micromanagement. We are free birds with a clear understanding of what the high performance is!
5. Learning in Levi9 never stops (unlimited Udemy for business, meetups, English courses, Professional trainings).
6. Here you can train your body and mind.
7. We've gathered the best locations - comfortable, cozy and pet-friendly offices in Kyiv (5 minutes from Olimpiyska subway station) and Lviv (5 minutes from the Opera Theatre) with regular offline internal events
8. We have master's degree in work-life balance.
9. We are actively supporting Ukraine with constant donations and volunteering

Hi, Flatstudio team here.

We're a strategic design partner for data-intensive products – sportsbooks, sports analytics platforms, trading terminals, SaaS. HQ in Lisbon, distributed team across Europe. Our clients include products with millions of monthly users, and some of our partnerships run 6–9+ years. Design at Flatstudio means the full system: UX, interfaces, code, and product logic – not standalone screens.

We're opening a Business Development role to build our outbound sales direction in the iGaming and sports analytics verticals. This is a build-from-scratch role: you'll own the pipeline, work directly with the founder, and grow into full-cycle sales as the direction matures.

What your first 3 months look like

• Research iGaming, sportsbook, and sports analytics companies across Europe, North America, and selected international markets
• Run first-touch outreach through LinkedIn and outsourcing marketplaces, using our case studies as the core asset
• Qualify leads and bring them to an intro call – the founder joins deals from that point, and you learn our sales process from the inside
• Set up and maintain the CRM and outreach workflows, with AI tools where they genuinely help

What the role grows into

• Full-cycle sales: from intro call to contract signing
• Pre-sales together with the team: requirements gathering, scoping, proposal building
• Long-term client relationships, cross-sell and upsell
• Real influence on how our sales and business processes are built – your ideas will be implemented, not filed

Must-haves

• 1.5+ years of hands-on B2B sales or lead generation experience – digital services, agencies, or outsourcing
• Working knowledge of the iGaming industry: who the operators, platforms, and affiliates are, and how B2B models like White Label and Turnkey work
• Proven outbound experience through LinkedIn or marketplaces – you know how to start conversations that don't get ignored
• Hands-on use of AI tools in your own workflow
• English – Advanced (C1+), fluent written and spoken communication with clients
• Ukrainian – understanding is a must

Nice-to-haves

• Existing contacts in the industry: operators, affiliates, platforms
• Experience selling into regulated markets
• Understanding of UX/product design fundamentals
• Business analysis or requirements-gathering experience

Who fits this role

• You act without waiting for ready-made instructions – there is no playbook here yet; you'll help write it
• You build trust rather than push – our sales cycle is consultative, not transactional
• You're motivated by closed revenue and by building something, not by maintaining someone else's pipeline
• You're comfortable communicating directly with clients, the team, and the CEO

Working conditions

• Full-time, remote
• Base salary €800–1,500 (based on experience) + 20% commission on the first payment of every deal you close
• 3-month probation period
• 22 business days of paid vacation, 3 paid sick days, plus public holidays
• Tools: Notion, Slack, Figma, Claude

How to apply

Send your CV along with a short description of one deal you sourced and closed yourself – your role in it, the sales cycle, and the outcome. No client names needed.

Main requirements

Snowflake Experience

The person should be proactive, well-organized, and an effective communicator, able to independently drive tasks forward, keep processes under control, and communicate clearly with the team and stakeholders.

Requirements

Senior Data Enginer

Snowflake — core development

• Writing and maintaining production views, secured views and stored logic in Snowflake
• Understanding of role-based access control: users, roles, GRANTs, warehouse and database entitlement models
• Enough query-tuning instinct to build views over large fact tables without wrecking performance — partition pruning, clustering awareness, avoiding SELECT *

Microsoft SQL Server

• T-SQL development
• Migrating legacy tables, views and stored procedures to Snowflake

Previous ETL Tooling Experience

Bonus Points

BI and semantic layer

• Sigma Computing — connection setup, workbooks, embedding, AI/Cortex configuration. We are rolling Sigma out now and retiring Tableau Desktop.
• Tableau — data source management, extract vs live strategy, extract scheduling and dependency mapping

Documentation and code review

• Producing data-flow and architecture diagrams
• Reviewing SQL/pipeline code to a standard — we have a code review backlog in other areas because there aren’t enough qualified SQL reviewers. A contractor who can act as a second reviewer is disproportionately valuable.

Azure DevOps (aka ADF Pipelines sync’d with Github)

• CI/CD pipelines for database and ADF artefacts, service principal / client secret configuration, release troubleshooting

External API ingestion

• Consuming and loading third-party APIs into the warehouse (e.g. FX/exchange rate feeds), including auth and error handling
• Snowflake Git integration — connecting a Git repository to Snowflake, versioning database objects and deploying from a branch, plus general source-control discipline for SQL and pipeline code
• Snowflake Streamlit — building lightweight in-warehouse data apps as an alternative to a full BI workbook where the audience is small or the use case is operational
• Python for data engineering and Snowpark
• Snowflake Cortex / LLM-in-warehouse features
• dbt or equivalent transformation tooling (not in use today, but relevant if we modernise)

Working attributes we need

• Comfortable being the second pair of hands on a one-person team — takes a ticket end-to-end without daily direction
• Documents as they go; we are explicitly trying to reduce single-person key-man risk
• Cost-aware: several of our decisions are spend-driven, not purely technical

English - Andvanced

JustMarkets is a global fintech company delivering high-tech trading and investment solutions to millions of clients across 160+ countries since 2012.

We are hiring an CRM & Lifecycle Automation Specialist to building and continuously optimizing full-cycle automated communication funnels (Email, App/Web Push, In-App) to drive LTV growth and reduce churn rate.

You will have direct ownership of the automation and communications architecture and an opportunity to drive Retention & LTV, test hypotheses with full autonomy and zero micromanagement.

Responsibilities

• Map and refine the end-to-end client lifecycle journey based on trading behavior, deposit history, risk tolerance, and platform engagement; create dynamic user segmentations based on real-time event tracking
• Design, build, and deploy automated trigger workflows and drip campaigns using modern CRM/Lifecycle tools; Reviewing and evaluating content from a Retention Marketing perspective within the scope of assigned campaigns
• Cross-functional collaboration with Data/BI/Engineering, Product, and Marketing teams to design compelling promotional offers, ensure accurate behavioral event tracking in the CRM, and implement advanced personalization logic using dynamic tags
• Set up structured A/B and multivariate tests for copy, send times, channel preferences, and incentives; track and report on lifecycle KPIs
• Ensure deliverability hygiene (IP warming, domain health, unsubscribe management) and partner with Legal and Compliance to align communications with regulations (GDPR, CAN-SPAM, local frameworks)
• Hands-on work with HTML/CSS templates, adapting responsive designs across diverse devices, and setting up dynamic content for specific audience segments.
• Regular monitoring of retention metrics, analyzing retention trends, and researching bottlenecks in user burnout and fatigue.
• Competitive analysis to track competitor messaging strategies and identify best practices within our niche.
• Preparing and launching regular and special promotional campaigns in compliance with brand guidelines, layout standards, and legal compliance - acting as a backup specialist

Requirements

• At least 3+ years of hands-on experience with B2C focus in designing and building event-driven automated workflows using modern CRM/ESP tools
• Proven experience executing multi-channel messaging strategies across Email, mobile/web Push, In-App messaging
• Deep understanding of how behavioral event data moves (JSON payloads, Webhooks, REST APIs, custom user attributes)
• Solid grasp of domain authentication protocols (SPF, DKIM, DMARC), IP warming strategies, spam filter mechanics, and inbox placement monitoring tools
• Proficiency in HTML/CSS for responsive email layout debugging and experience using dynamic scripting languages to personalize content based on user data
• Strong build retention cohorts, and analyze funnel performance using analytics platforms
• Proven experience in conceptualizing funnel logic and executing lifecycle campaigns across multiple stages (e.g. Onboarding, Retention, Churn Prevention, Reactivation); conceptualize funnel logic; event mapping experience
• Ability to formulate structured hypotheses and conduct rigorous A/B tests
• Advanced segmentation expertise
• Meticulous attention to detail, empathy for the trader journey, data curiosity and experimentation mindset, cross-functional collaboration skills, proactive troubleshooting, and a balance of speed and systemic quality
• Upper Intermediate English level 

Will be a plus

• Experience executing synchronized messaging strategies across SMS, and Messengers (WhatsApp/Telegram)
• Fintech/Financial product domain experience
• Understanding of how AI tools and automation can be leveraged to streamline routine in retention

We offer

• Direct ownership of the automation and communications architecture
• Opportunity to directly drive Retention & LTV and test hypotheses with full autonomy and zero micromanagement
• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company's approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear, and related expenses)

ABOUT OUR CLIENT

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

ABOUT THE ROLE

We are looking for a Senior Software Engineer to build and operate production AI agent and search services on top of a large-scale data platform. This is hands-on work at the intersection of distributed backend engineering and applied AI: multi-agent workflows, tool-execution infrastructure, retrieval and relevance, and integrations with multiple LLM providers — all running as real, customer-facing production services with the reliability expectations that implies.

RESPONSIBILITIES

• Design and implement scalable multi-agent workflows (including conversation state), tool-execution infrastructure, and data-aware tools working with catalogs, schemas, lineage, SQL, jobs, semantic metadata, data preparation, and visualizations
• Build search and retrieval capabilities with OpenSearch or equivalent — indexing, relevance tuning, hybrid keyword + vector search
• Integrate multiple LLM/model providers with secure configuration and graceful degradation
• Develop APIs and event contracts across REST, streaming/SSE, gRPC, protobuf, and SDKs, including UI integrations
• Operate, monitor, and improve production services — service health, logs, metrics, traces, search-cluster health, latency, and error rates; participate in the team's production-support model
• Investigate incidents, drive root-cause analysis, and ship durable fixes
• Design for permissions, tool approvals, multi-tenancy, and customer-data governance
• Maintain dependencies, apply security fixes, and reduce tech debt; produce designs, tests, runbooks, and documentation; lead technical discussions and review code

REQUIRED QUALIFICATIONS

• B.S. or M.S. in Computer Science, Computer Engineering, or a related field — or equivalent practical experience
• 7+ years of relevant experience, or equivalent demonstrated senior-level impact
• Strong Java software engineering skills
• Strong grasp of concurrency, data structures, API design, testing, maintainability, and backward compatibility
• Solid background in distributed systems, microservices, cloud services, or data-intensive backends
• Hands-on experience with search technologies — OpenSearch, Elasticsearch, or Lucene — including vector search, embeddings, or relevance systems
• Experience building LLM applications, agent/tool workflows, RAG systems, or model-provider integrations
• Strong production instincts: diagnosing failures via logs, metrics, and traces; designing for fault tolerance, retries, cancellation, and recovery
• SQL and familiarity with data platform concepts: catalogs, metadata, schemas, governance, lineage
• Comfort leading ambiguous, cross-service work with clear stakeholder communication and strong written documentation
• Comfortable with AI-assisted development workflows — using modern AI tools productively while critically validating their output
• English Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team
• Availability to work EU business hours shifted 2–3 hours later for daily overlap with US West Coast mornings

DESIRED SKILLS

• LangChain4j or similar agent frameworks
• Python for AI services, evaluation harnesses, or sandboxed execution
• React and TypeScript
• gRPC, protobuf, Quarkus, Kubernetes, MongoDB, KV stores, event-driven architectures
• Apache Arrow, Apache Iceberg, OpenLineage, semantic layers, or data-governance systems
• AI quality evaluation: LLM-as-judge, model benchmarking, production AI metrics
• OpenSearch operations: index lifecycle management, relevance tuning, incident response
• Open-source contributions

DETAILS

• Engagement: Long-term contract
• Location: Europe (EU / EEA / UK), remote
• Working hours: EU business hours, shifted 2–3 hours later for daily overlap with the US West Coast team

ABOUT OUR CLIENT

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

ABOUT THE ROLE

We are looking for a Senior Software Engineer for the data catalog and enterprise data management layer of a large-scale lakehouse platform — the services that automate data ingestion and autonomously optimize Apache Iceberg tables. You will own features through the full development cycle, from design through deployment, in a multithreaded, distributed environment where scalability, performance, and always-on availability are the baseline expectations.

This is a systems-level, backend engineering role focused on data infrastructure internals — not application development or CRUD services.

RESPONSIBILITIES

• Own the full software development cycle — inception, design, development, testing, deployment — for catalog and data-management services
• Build and operate services for automated ingestion and autonomous optimization of Apache Iceberg tables
• Reason about concurrency and parallelization to deliver scalability and performance in multithreaded, distributed systems
• Drive performance tuning and system-efficiency improvements
• Work with Apache Foundation open-source projects, contributing upstream where agreed
• Participate in code and design reviews, upholding a high engineering bar
• Collaborate with product managers, support teams, and solution architects on feature requests and design updates
• Partner with US-based engineering leads on technical decisions

REQUIRED QUALIFICATIONS

• B.S., M.S., or PhD in Computer Science or a related field
• 5+ years of software engineering experience, preferably focused on database systems or related fields
• Strong object-oriented programming skills in Java or C++
• Solid grounding in data structures and algorithms
• Hands-on experience with multithreaded and asynchronous programming patterns for scalable, performant systems
• A passion for engineering quality — zero-downtime upgrades, availability, resiliency, and uptime as first-class concerns
• Comfort with a fast-moving environment; strong ownership; the confidence to defend a technical position and the openness to be mentored
• Comfortable with AI-assisted development workflows — using modern AI tools productively while critically validating their output
• English Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team
• Availability to work EU business hours shifted 2–3 hours later for daily overlap with US West Coast mornings

DESIRED SKILLS

• Database internals and query planning
• Distributed systems: concurrency control, data replication, storage systems
• Apache Iceberg or other open table formats (Delta Lake, Hudi)
• Messaging systems: Kafka, NATS, or cloud pub/sub services
• Contributions to open-source data infrastructure (Apache projects especially valued)

DETAILS

• Engagement: Long-term contract
• Location: Europe (EU / EEA / UK), remote
• Working hours: EU business hours, shifted 2–3 hours later for daily overlap with the US West Coast team

About Us

We are a fast-growing marketing agency focused on Western markets, with strong expertise in cryptocurrency, gambling, and betting. We work with ambitious brands and deliver results-driven, creative social media strategies.

Role Overview

We’re looking for a Junior SMM Manager to support our social media team. You’ll help build content calendars, draft short-form copy, coordinate creatives, schedule posts, monitor communities, and track basic performance metrics. You’ll work closely with an SMM Team Lead and learn best practices on real projects.

Key Responsibilities

• Assist in building weekly content calendars aligned with client strategy and brand guidelines.
• Draft clear, on-brand copy for Instagram, TikTok, X, Facebook, and LinkedIn using our AI-powered tools.
• Prepare briefs for designers and video editors, collect assets, and ensure timely delivery.
• Schedule and publish content via tools like Meta Business Suite, Later, Buffer, or Hootsuite.
• Monitor comments and DMs, tag issues, and escalate to the Team Lead when needed.
• Track basic metrics (reach, engagement rate, CTR) and compile simple weekly reports.
• Research trends, competitors, and sounds - propose 3-5 fresh post ideas per week.
• Keep folders, UTM links, and project docs organized and up to date.
• Support simple A/B tests on hooks, thumbnails, captions, and posting times.
• Collaborate with designers and performance marketers to adapt creatives for paid use.
• Follow compliance guidelines relevant to crypto, gambling, and betting.

Requirements

• 6-24 months of experience in social media or content - internships and freelance projects count.
• Strong written English (B2+); confident, concise copywriting.
• Solid platform basics across Instagram, TikTok, X, Facebook, and LinkedIn.
• Comfortable using AI tools to ideate and refine copy.
• Basic analytics familiarity - platform insights and simple dashboards.
• Organized, detail-oriented, proactive, and deadline-driven.
• Nice to have: Canva or CapCut skills, experience with scheduling tools, basic GA4 knowledge.
• Industry familiarity with crypto, gambling, and betting is a plus.

What We Offer

• Remote work with flexible hours.
• Mentorship from an experienced SMM Team Lead and clear SOPs.
• Access to advanced AI tools and internal training.
• International projects and fast learning curve.
• Growth path to Middle SMM Manager based on performance.

Important

Short test assignment required to demonstrate fit and skills.

GNB Agency is looking for a Head of Retention to own the full retention cycle for our SaaS clients.

What you'll do

• Build and own lifecycle campaigns across email, SMS, in-app and calls: onboarding, activation, expansion, win-back
• Design retention flows that reduce churn and grow LTV, MRR and NRR
• Segment users by behaviour and plan usage, run A/B tests, report on cohort retention
• Lead and grow a small retention team

What we're looking for

• 3+ years as Head of Retention, Retention Team Lead, CRM Lead or similar
• Full-cycle retention experience, not call-centre work: you build the strategy and the flows, not just execute scripts
• Hands-on with CRM/automation platforms (Customer.io, Braze, HubSpot, Intercom or similar)
• Strong analytics: churn, cohorts, LTV, funnel metrics
• Fluent English

GNB Agency is hiring a Head of Retention to run full-cycle retention for crypto exchange and Web3 clients.

What you'll do

• Own the retention strategy across email, SMS, push and calls: from first deposit to reactivation of dormant traders
• Build automated lifecycle chains that increase trading frequency, deposit volume and LTV
• Segment by trading behaviour, asset preference and activity level
• Track cohort retention, reactivation rates and revenue per user
• Lead a small retention team

What we're looking for

• 3+ years as Head of Retention, Retention Team Lead, CRM Lead or similar
• Full-cycle retention experience, not call-centre work: strategy, segmentation and flow building, not just outbound scripts
• Understanding of the crypto audience and trading behaviour
• Hands-on with CRM/automation tools and analytics
• Fluent English