Jobs at Djinni

Hey! We're growing and looking for a sharp, proactive Lead Generation Specialist to join our team! 🚀

If you're passionate about Upwork, skilled in lead automation, and love optimizing outreach — keep reading!
 
At Lynksen, we develop human-centric digital products and help our clients grow through smart design, tech, and business strategy. Now, we’re scaling our Upwork presence — and we need a teammate who can take our lead generation to the next level.

What You’ll Be Doing:
 
✦ Generate and qualify new leads on Upwork through manual prospecting and smart automation.
✦ Monitor and fine-tune automation tools (scanners, filters, triggers, trackers).
✦ Stay ahead of Upwork algorithm updates and adapt strategy accordingly.
✦ Optimize profiles, proposals, catalogs, and saved searches for higher conversions.
✦ Write engaging, personalized outreach messages and proposal templates.
✦ Maintain and segment CRM for lead nurturing and timely follow-ups.
✦ Test and implement new tools, channels, and automation workflows.
✦ Communicate with warm leads and support early-stage sales conversations.
✦ Run A/B tests and performance analysis of scripts and outreach campaigns.
✦ Collaborate with Sales and Delivery teams on intro calls and presale coordination.
✦ Keep reports and KPIs updated, contribute insights during retrospectives.

Must-Have Skills & Experience:
 
✦ 1+ years of experience in Upwork lead generation or a similar role.
✦ Solid understanding of Upwork’s platform logic and algorithm behavior.
✦ Experience setting up and managing Gigradar or similar Upwork tools.
✦ Skilled in writing personalized proposals and cover letters.
✦ Confident in handling high workload and multitasking without losing quality.
✦ Analytical mindset — you love metrics and performance tracking.
✦ CRM experience (pipeline management, segmentation, basic reporting).
✦ Comfortable researching and qualifying leads across multiple ICPs.
✦ English — B1+ level (written and spoken).

Hiring Process:
 
✦ HR interview (30 mim).
✦ Tech interview (1 hour).
✦ Test task (no dedline).
✦ Final call with CEO and COO

What we offer:

✦ 8 hours working day.
✦ 21 days of paid vacation + paid national holidays.
✦ 14 days of paid sick leave.
✦ Unlimited number of days off.
✦ 50% Compensation for the cost of English courses.
✦ Up to 100% compensation for the professional courses.
✦ Corporate events.

We're a fun and very fast-growing IT company - we provide IT support, consulting and training for small businesses across greater London, those with 1-50 staff. We love our clients and they love us. We do what we say we will, and are good at what we do. If you love technology and helping people with technology in their business - then we're the tech services company for you.

THE ROLE:

Our Engineers help small businesses with any technology questions or problems, we basically do what an IT Department would for a large business - anything technology! From servers, laptops, Macs, PCs, printers, mobile devices to websites, hosting and advising on product specifications - we do it all. We currently need a Systems Engineer to work with our high calibre team to help our client base.

YOUR BACKGROUND:

Demonstrated field experience is required, with at least 2 years industry experience essential. You must have sound knowledge and experience in:

•Office 365 experience

•Windows Server and/or OS X Server

•Windows client & Mac OS

•General networking

•General email and hosting services

•General computer hardware

•A terrific client service attitude

•A willingness to learn and develop

•A willingness for customer service and assist clients over the phone

A decent level of spoken and written English (English courses will be provided)

is a plus

•Powershell and Bash knowledge

•Microsoft certificates

Experience with Apple Macs & iPhones, Android, Windows Phone, Linux, and small businesses would be desired.

We offer

•Flexible working with up to 40% time working from home

•£770 yearly bonus (to start after 6 months of probation, and dependent on performance)

•Out of Hours and Sales commission (after probation) + paid overtime available when required + Flar Tokens

•Medical insurance (upon successful probation completion)

•Bi-annual competitions with big prizes & incentives

•2 English lessons/week (business hours, at company's cost);

•Bar on company's account;

•Monthly fun events;

And more!

REMUNERATION AND WORK HOURS

The Engineer role is full time (40 hours per week, 5 x 8 hour days) with negotiable flexible hours - whatever makes you more productive! You'll be asked to work as a Private Entrepreneur. Annual leave 28 days, 3 paid study days per quarter. We’d like the candidate to attend the office at least once a week (ideally twice)

We'll leave it up to you to tell us why you would be a good addition to our friendly and knowledgeable team. We look after clients with Windows, Mac and Linux machines, so tell us where your passion lies!

We are looking for a Finance Manager to join United Tech and take on a key role in financial operations. This is a great opportunity to work across different finance areas, grow professionally, and advance your career in a market-leading IT company. You will be part of a supportive and knowledgeable team collaborating to ensure financial efficiency and strategic decision-making
 

In this role, you will

• Prepare financial reports and analyze financial information to support decision-making by upper management
• Conduct financial analysis to increase profits, optimize expenses, and improve cash flow
• Manage the preparation of project budgets and monitor their usage to ensure alignment with plans
• Analyze costs, pricing, variable contributions, sales results, and actual performance compared to business plans
• Oversee day-to-day financial operations within the project, including payments, requests, and other transactions
• Support the registration of bank, EMI, and PSP accounts, including handling KYC procedures, compliance, and audits
• Analyze existing financial systems and processes to identify opportunities for improvement and automation
• Implement cost-reduction strategies and improve operational efficiency
• Work closely with financial managers, treasury managers, financial controllers, legal teams, and product teams to streamline processes and ensure smooth operations
• Communicate with external partners, including banks, financial institutions, advertising networks, and merchants if needed
• Analyze costs, pricing, variable contributions, sales results and the company’s actual performance compared to the business plans
• Search for cost-reduction opportunities
• Prepare necessary information for financial statements and audits
• Provide data to potential investors and assist in due diligence when required
• Complete ad hoc tasks and participate in special projects as needed
• Perform other duties as assigned by upper management

It’s all about you

• Bachelor’s or Master’s degree in Economics, Accounting, Finance, Management, or related fields
• 2–3 years of relevant experience in an IT company, Big4, or multinational consulting, audit, or FMCG company
• Proficiency in MS Excel, Google sheets, and analytical tools (e.g., Power BI)
• Working knowledge of IFRS and accounting principles
• Strong analytical and problem-solving skills with a structured and data-driven approach
• Attention to detail, critical thinking, and the ability to make sound business decisions
• Ability to work independently, prioritize tasks, and meet deadlines in a dynamic environment
• Excellent communication skills, including written and oral proficiency in English (Upper-Intermediate or higher)

• Proactive, results-oriented, and open-minded team player with a focus on continuous process improvement

   

Would be a plus

• Experience with Microsoft Dynamics Business Central
• Experience in ERP system implementation
• Experience in audit would be a valuable asset
   

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
• Online yoga class with an instructor from the Ukrainian Yoga Federation
• 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 
• Test Task
• Hiring Team Interview
• Final Interview
• Reference check
• Polygraph
• Offer

P.S. Noticed a perfect match for your friend? We accept recommendations for all vacancies. 
 

Join Our Recruiting Team | Lead the Future of Human-AI Relationships

We're a fast-growing startup building category-defining AI companionship products. Our mission is to reshape how people experience relationships and intimacy through technology. We're just one year in — and already scaling fast.
 

To support this growth, we're looking for a Recruiting Team Lead who will own the recruiting function, build the team, and set the standard for how we hire.
 

Why This Role Is Special

• You'll help build a category-defining company — and play a direct role in shaping the team that makes it real
• You'll own how recruiting is done here — this isn't a management-only role, we want a builder
• You'll build and grow a recruiting team from the ground up — with room to scale the function as we scale the company
• You'll have true freedom — no rigid playbooks, just outcomes and ownership
• You'll work across domains — AI/ML, Product, Analytics, Marketing, Payments, and executive-level roles
• Of course, you'll enjoy great perks — flexible hours, remote-friendly culture, cozy offices in Kyiv, Lviv, Warsaw and more. Plus: relocation support, paid vacation, sick leave, healthcare, wellness benefits, and a learning budget
   

What You'll Do

• Own the full recruiting function: processes, metrics, team performance, and candidate experience
• Manage, mentor, and grow a team of recruiters
• Partner with hiring managers and leadership as a strategic talent advisor
• Drive sourcing strategy across LinkedIn and other platforms for hard-to-fill and senior roles
• Set and track recruiting KPIs: time to fill, time to hire, offer acceptance rate, quality of hire
• Build scalable hiring processes and improve them continuously
• Personally close key and executive-level roles when needed
• Collaborate with leadership to forecast hiring needs and shape workforce planning
   

What We're Looking For

• 3+ years in talent acquisition, including experience leading or mentoring a recruiting team
• Proven track record closing senior and cross-functional roles (AI/ML, Product, Engineering, Executive)
• Experience hiring internationally across multiple markets
• Data-driven approach — you measure what matters and use it to improve
• Strong English for candidate communication, interviews, and stakeholder alignment
• Builder mentality — you see gaps and fix them without being asked
• Proactive, structured, and comfortable with ambiguity in a fast-scaling environment

Description

Our team is at the forefront of developing a security operations platform, specializing in security analytics and response playbooks. As a key part of the backend development organization, we manage and integrate with a multitude of client infrastructures through over 300 third-party integrations.

Requirements

We are seeking a Mid or Senior DevOps Engineer to supplement our security operations platform’s deployment, integration, and testing capabilities. This is a key role for improving our CI/CD workflows, ensuring the reliable management and deployment of our third-party integrations, and improving the stability and performance of our existing test pipelines.

Job responsibilities

• Design, implement, and maintain CI/CD pipelines to enable secure, and reliable delivery of the security platform and its integrations.
• Lead the deployment, configuration, and ongoing maintenance of 300+ third-party service integrations, on diverse hosting requirements:
     – Google Cloud Platform (GCP)
     – Microsoft Azure
     – Supporting on-premise deployments hosted within GCP or Azure environments
     – AWS
• Develop and automate data generation processes for validating and operating each third-party integration.
• Implement comprehensive automation for infrastructure provisioning, application deployment, and configuration management.
• Analyze, troubleshoot, and implement improvements to improve the stability, reliability, and performance of existing sanity test pipelines.
• Collaborate closely with backend engineering teams to streamline integration processes and ensure seamless service deployment.
• Advocate for and implement DevOps and Site Reliability Engineering (SRE) best practices, focusing on automation, observability, and system resilience.

Description

For Rail client to support design and development activities in migration of Windows stand alone application to cloud service on Azure Cloud.

Short background of the stack
Backend: 95% C# with asp.net core, C# med asp.net framework and a custom extension in Java.
Frontend: C# with either Maui blazor or asp.net core + signal r + typescript
Hosting: VMs in azure or customer hosted – future will be containers on linux.
Deployment: Linux docker containers, legacy windows services, with misc oss/cots products (mssql, postgres, hivemq, traefik, keycloak)

Requirements

MUST HAVE

5+ years of experience with Microsoft Technologies: .Net, WPF, C#

RESTful API design

Linux 

gRPC

Messaging / message-brokers

Technical debt management

Network communication (connection handling, timeouts, retries, basic TCP & UDP understanding)

TLS understanding

Container technologies

Advanced mathemathics – applied math

Passionate about learning new business areas and technologies.

Ability to adapt quickly to an existing, complex environment.

Strong communication skills (both verbally and in writing) with internal team members and external business stakeholders.

Strong knowledge of software development best practices and techniques

NICE TO HAVE

SignalR
OpenTelemetry
Azure DevOps
State-driven design
Event-driven design
Store-and-forward / buffering patterns

EXPERIENCE WITH

Integrating with external systems and protocols. Forward-compatability

Working in regulated environments

Ensuring reliability in unreliable runtime environments

Meaning of idempotence and invariant

Job responsibilities

Reverse engineering of .Net / C# stand alone application and porting it to Web, cloud based apll hosted on Azure

Participate in the design and development of scalable cloud solutions.

Develop new software products – design, code, test, package and document new products.

Work closely with Scrum teams and stakeholders to successfully bring the solution to production.

Work with the project lead and project team to plan, estimate, schedule and implement development project tasks.

Report development project status in accordance with project plans.

Participate in the planning of and execution of on-site customer testing.

Business trips to Copenhagen will be required for onboarding (2 weeks) and later – once per quarter

Description

The project goal is to compare the map to reality.

You will walk through the city, visit points of interest (such as shops, restaurants, etc.), and check the information (an address, name, contact information, etc.) in a mobile application.

We offer:

• Short-term engagement, up to 2 weeks
• Training and support during your work

Requirements

• To have a smartphone
• Be ready to travel across your city
• Be able to use/understand a map
• Live/stay in or near the city of interest
• It will make work easier if you have personal transport

Job responsibilities

• Take the training
• Travel across your city and collect the data using a mobile app
• Provide a daily report
• To work a whole day – 8h 5/2 – and meet the deadline

Description

The project goal is to compare the map to reality.

You will walk through the city, visit points of interest (such as shops, restaurants, etc.), and check the information (an address, name, contact information, etc.) in a mobile application.

We offer:

• Short-term engagement, up to 2 weeks
• Training and support during your work

Requirements

• To have a smartphone
• Be ready to travel across your city
• Be able to use/understand a map
• Live/stay in or near the city of interest
• It will make work easier if you have personal transport

Job responsibilities

• Take the training
• Travel across your city and collect the data using a mobile app
• Provide a daily report
• To work a whole day – 8h 5/2 – and meet the deadline

Description

The project is about to create a common solution to visualise real-time reports/dashboards based on various events received from trains.

Project goal is to integrate inputs / signals / data coming from the railway network through other client’s services into cloud based data base solution (Azure) and then implement them as a dashboard, once place that will visualise data that will be used for monitoring and predictive maintenance

NOTICE: Business trops to Denmark are mandatory

Requirements

4-6 years of experience in software testing/quality assurance roles.

Knowledge of Software testing and release processes.

Excellent knowledge of quality theory, concepts, tools, methodologies of quality assurance.

Thorough understanding of testing methodologies, including test automation.

Experience with AGILE Methodology.

Experience in Functional Testing (Manual).

SpecFlow and Gherkin 

Test Management Automation Tools (Selenium -BDD).

Experience with Programming Language .NET C#.

Experience with database technology such as Oracle, MySQL etc.

Experience with HTML5, CSS, web services (SOAP and REST), SQL, XML.

Experience with cloud-based web applications

Experience using configuration management tools such as Git and Jira.

Detail orientated with strong analytical and problem solving skills.

Good interpersonal and communication skills.

Upper-Intermediate English or better is preferred.

Frequent visits to Client’s office (Copenhagen) will be required

Job responsibilities

Develop automated scripts using the existing framework and update framework if required.

Develop automated scripts based on manual test cases and requirements.

Review and analyze requirements, specifications and technical design documents.

Perform testing of UI cloud-based web applications, cover new and existing functionality with automation tests.

Work closely with product owners and developers on requirements clarification.

Design, develop and execute detailed, comprehensive, and well-structured test cases.

Suggest solutions to identified product problems.

Investigate product quality in order to make improvements to achieve better customer satisfaction.

Identify, analyze, report and verify issues.

Develop, review and update test documentation.

Participate in release planning activities.

Actively participate in meetings with the customer and the team.

Prepare and present reports and metrics.

We are looking for a QA Team Lead who will be responsible for quality assurance across multiple engineering teams and play a key role in building a scalable testing strategy. You will act as the quality owner for the larger development team, ensuring the reliability of the entire product data flow from external API integrations to end-user dashboards.

In this role, you will lead the QA team and work closely with engineering team leads, implementing automation, quality gates, and testing best practices within development workflows. You will have the opportunity to shape the company-wide quality strategy, scale automation efforts, and influence product quality across the entire engineering organization.

Responsibilities
- Lead a QA team of 3–4 engineers, including task assignment, code reviews, mentorship, and supporting professional growth.
- Own end-to-end quality across all engineering teams.

- Build and maintain a cross-team testing strategy covering the full data flow — from API ingestion through data pipelines to the end-user dashboard.
- Design and implement automated test suites, including E2E (Playwright/Cypress), API, integration, and regression tests.
- Establish quality gates in CI/CD pipelines, ensuring no code is released without passing automated checks.
- Coordinate release testing across teams, ensuring that changes in one system do not impact downstream consumers.
- Define and track quality metrics, such as test coverage, defect rates, time-to-detection, and regression frequency.
- Collaborate closely with team leads (Platform, Integrations, etc.) to embed quality practices into development workflows.
- Manage test environments and test data, ensuring realistic and reproducible testing scenarios across all domains.

Requirements
- 5+ years of experience in QA/SDET, including 2+ years in a leadership role managing a QA team.
- Strong experience with test automation, using Playwright, Cypress, or similar E2E frameworks.
- Experience testing APIs (REST), both manual and automated, including contract and integration testing.
- Understanding of data pipeline testing, including validation of data flow from source APIs through transformation layers to analytics systems.
- Ability to work across multiple tech stacks (PHP/Laravel, Vue.js, Python, SQL). You are not required to be a developer, but you should be able to read and understand code.
- Experience with CI/CD integration, embedding automated tests into build pipelines and managing test environments.
- Strong communication and stakeholder management skills — you will coordinate with 3–4 team leads and communicate quality status clearly.

Nice to Have
- Experience with BigQuery and/or ClickHouse data validation.
- Knowledge of advertising/marketing tech domain (Meta API, LinkedIn API). 
- Experience with performance/load testing (k6, Locust, Artillery).
- Familiarity with GCP services (Cloud Run, Cloud SQL, Cloud Scheduler).
- Understanding of healthcare/pharma compliance requirements.
- Experience with visual regression testing.

What We Offer
- Fully remote with flexible hours (aligned with EU timezones for syncs).
- Influence on the quality assurance strategy across the entire engineering department.
- A cross-team role with visibility into every part of the product.
- AI-first tooling.
- Claude Code licenses and cutting-edge AI development workflows. 
- A team with no bureaucracy, decisions are made fast.

OTAKOYI is looking for a smart and eager Junior QA Engineer to join our team. We like challenges and self-development. If you like it too, don’t hesitate to join us!

Required skills:

• 1,5+ year of experience in web/mobile application testing (FE; basic BE understanding is enough).
• Good knowledge of the software testing process and basic QA lifecycle.
• Understanding of functional testing and its core subtypes (smoke, e2e, regression, sanity, exploratory).
• Knowledge of testing methodologies and the development lifecycle (Scrum/Kanban).
• Experience writing test documentation: checklists, test cases, bug reports, test reports, test plans.
• Understanding of task estimation principles and approaches
• Understanding of REST API concepts and experience in API testing (Postman);
• Basic SQL knowledge (simple SELECTs, filtering, sorting, — enough to validate data).
• High attention to detail and a responsible approach to assigned tasks.
• Ability to work independently on small tasks, ask for help on complex ones.
• Ability to actively communicate blockers, missing requirements, and risks.
• Ability to give straightforward feedback and ask clarifying questions without fear.
• Strong attention to details and sense of responsibility

Tools

Experience with:

• Task tracking tools (Jira, YouTrack, Asana etc.)
• Test management tools (TestRail, Zephyr, Xray — at least one)
• API testing tools (Postman, Insomnia, Swagger, DevTools)
• Version control systems (Git)

Responsibilities

— Requirements analysis and processing;
— Identifying and reporting issues;
— Holding and reporting a regular status of the test progress;
— Creating test documentation of different levels(test cases, checklists, bug reports);
— Assisting PO, QA Lead with creation of project documentation (guides, tutorials, etc)
— Assist in the development and maintenance of an effective QA process within the software group;
— Conduct cross-browser and UI/UX testing to ensure consistency across all major web browsers;
— Conduct API testing, basic performance testing
— Communication with the project team and QA department

Nice to have
— Experience testing simple CMS/CRM flows (not mandatory, but a plus).
— Experience testing AI-Gen applications
— Desire to grow toward automation in the future (nice to have, not required).
— Ability to perform basic SEO and core web vital checks

Recruitment process

1. Pre-screening Interview with Recruiter (up to 1 hour)
2. Tech Interview (1 hour)
3. HR Interview

🟢 We invite a Principal Project Manager to join our team and support the delivery of new components within a large-scale fintech data platform in the private markets domain. You’ll coordinate Scrum teams in a SAFe environment, enabling smooth delivery and improving collaboration, processes, and overall execution across a complex, integration-heavy platform.

🟩 What's in it for you:

• Own delivery of new components within a large-scale fintech platform, supporting ongoing team and platform scaling
• Operate at the account level, coordinating multiple Scrum teams in a SAFe environment while improving delivery flow and processes
• Gain exposure to the private markets domain and high-demand AI and blockchain technologies

✅ Is that you?

• 7+ years of experience as an IT Project Manager or in Delivery Management
• Hands-on experience with Agile/Scrum and SAFe environments
• Strong experience driving and enabling end-to-end delivery across multiple Scrum teams
• Experience working in complex, highly dependent environments
• Solid experience initiating, scaling, and growing large programs or accounts
• Demonstrated ability to establish and improve delivery processes and team collaboration
• Strong stakeholder management and communication skills, including working with senior decision-makers
• Ability to lead discussions with technical teams
• Strong analytical and problem-solving skills, with the ability to navigate ambiguity
• Upper-Intermediate+ English level

Desirable:

• Experience working on AI or blockchain-based projects
• Familiarity with data platforms or complex, integration-heavy systems
• Experience in fintech or private markets domains

🧩Key responsibilities and your contribution

In this role, you’ll coordinate delivery across multiple Scrum teams in a SAFe environment, supporting execution, alignment, and improving delivery processes across the account.

• Own delivery coordination across a large-scale SAFe environment with multiple Scrum teams
• Establish and maintain collaboration practices across teams to support smooth delivery
• Resolve questions and remove blockers to enable teams to deliver on time and on budget
• Support delivery execution across three-week sprints and quarterly PI planning cycles
• Define and improve delivery processes to support multiple teams and a growing scope
• Work with stakeholders across Product, Engineering, and Architecture to align priorities
• Track delivery progress, risks, and dependencies across teams
• Support teams in managing priorities, dependencies, and changes in a complex environment

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

About your role: You will create high-impact creatives across paid traffic channels, directly supporting the performance of our user acquisition efforts in US, UK, CA, and AU markets — one of the most competitive niches in the industry. You'll be involved from concept ideation through to final delivery, working closely with designers, the UA team, and cross-functional partners.

Here you'll enjoy full ownership and the freedom to make independent decisions in your area of responsibility, within a bureaucracy-free environment built on fast, direct communication.

 

In this role, you will

• Creative production for each traffic channel (Meta, TikTok, Snapchat, DSP, Google)
• Collaborate with designers to create visual and textual content for each platform
• Develop and brainstorm creative concepts, from initial ideation to finalized execution
• Analyze competitors' concepts to generate new ideas and provide creative inspiration for the design team
• Research user behavior and funnels, identifying factors that impact performance and success
• Close cooperate with the user acquisition team and other departments (analytics, product team, b2b)
• Analyze creative testing, including structured reporting for product & marketing teams"

It’s all about you

• At least 6 months of experience in performance marketing with a focus on app and/or web projects
• KPI-driven mindset: hands-on daily work with CPA, CTR, ROI, and a clear understanding of how to hit and optimize targets
• Experience creating detailed technical briefs for designers to ensure effective creative production
• Proven ability to conduct competitor and market research and translate insights into strategy
• Confident user of analytical and data visualization tools (GA4, Looker Studio, Power BI, Tableau)
• Strong organizational skills: backlog management, task prioritization, launch planning, and production coordination
• English level B2+

Nice to have:

• Experience in the social discovery niche
• Familiarity with AI tools for creative generation or performance analysis

What we offer

Care and support: 

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

Comfortable working environment:

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

Investment in your future:

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

Hiring process

• Interview with HR
• Test Task
• Interview with Hiring Team
• Bar-rasing 
• Reference check
• Offer

We are looking for a Middle Full-Stack Software Engineer with strong experience in TypeScript, React/Next.js, and solid working knowledge of backend development with Python.

The ideal candidate is comfortable owning features end to end — from frontend implementation and user-facing flows to backend services, APIs, integrations, and production support. This role is a good fit for an engineer who enjoys working across the stack, solving complex integration challenges, and contributing to a product in the AI communication space.
The position is slightly frontend-leaning, but still requires the ability to read, write, and maintain backend services.

CUSTOMER
The customer is a product company developing a platform for automating customer communications using AI-based solutions.
The team is small, fast-scaling, and operates with a low level of bureaucracy. The role involves direct communication with the customer team and a strong ownership-oriented engineering culture.
The project is in an active development phase. The candidate will work on frontend features, backend services, external provider integrations, and contribute to the ongoing development of the existing platform.

PROJECT
The project is an agentic call center platform that uses Voice and Text AI agents to conduct real customer conversations, automate workflows, and integrate with CRMs and telecom providers.
The platform helps businesses automate customer communication at scale, including bookings, call transfers, CRM workflows, messaging, and routing.
From a technical perspective, the project is interesting because it includes frontend development with React/Next.js, backend services in Python, GraphQL APIs, real-time voice AI workflows, integrations with external providers, MongoDB, Aurora, RabbitMQ, Redis, Docker/ECS, and a future migration toward Kubernetes.

Key Technologies
TypeScript, React, Next.js, GraphQL, Apollo, Python, MongoDB, Aurora / PostgreSQL, RabbitMQ, Redis, Docker, ECS, Kubernetes, AWS, AI/LLM integrations, real-time voice AI.

Job Description

• Develop and maintain full-stack features in a production environment.
• Build user-facing functionality using TypeScript, React, and Next.js.
• Work with server-side rendering and general Next.js patterns.
• Build, consume, and maintain GraphQL APIs, ideally using Apollo.
• Read, write, and maintain backend services in Python.
• Contribute to API design, data modeling, and service-to-service communication.
• Support integrations with CRMs, telecom providers, and AI-related vendors.
• Work with MongoDB and Aurora / PostgreSQL for data storage.
• Participate in debugging across the stack — from browser DevTools to backend logs.
• Work with Docker and containerized deployments.
• Contribute to CI/CD improvements, deployment safety, logging, monitoring, and observability.
• Help keep production services stable, reliable, and easy to support.
• Communicate directly with the customer team and take ownership of tasks from start to finish.

Qualifications

• 3+ years of full-stack engineering experience, preferably with a frontend focus.
• 3+ years of hands-on experience with Python, including work with backend services.
• Experience owning features end to end in a production environment.
• Good working knowledge of TypeScript.
• Experience with React and Next.js.
• Familiarity with server-side rendering and general Next.js patterns.
• Experience working with GraphQL, ideally Apollo.
• Ability to build and consume GraphQL APIs.
• Ability to read, write, and maintain Python-based backend services.
• General understanding of backend fundamentals: API design, data modeling, and how services communicate with each other.
• Experience with Docker and containerized deployments.
• Experience with MongoDB or a relational database such as PostgreSQL / Aurora.
• Understanding of basic schema design and ability to write reasonable queries.
• Ability to debug across the stack, from frontend issues to backend logs.
• Interest in production topics: logging, monitoring, reliability, and service health.
• Proactive communication and ability to take a task and drive it without constant hand-holding.
• Comfortable working in a small team with direct customer communication.

WILL BE A PLUS

• Exposure to messaging systems such as RabbitMQ or similar tools.
• Experience with Redis or other caching tools.
• Experience with real-time systems: telephony, WebSockets, streaming, low-latency pipelines.
• Familiarity with vendor orchestration patterns: fallback routing, provider selection.
• Any Kubernetes experience, even in dev/staging environments.
• Experience with AI/LLM, TTS/STT, or voice-related systems.
• Exposure to security/compliance concepts: SOC 2, secrets management, audit trails.

PERSONAL PROFILE

• Proactive and ownership-driven mindset.
• Comfortable working across frontend and backend.
• Enjoys solving complex product and integration challenges.
• Interested in AI-driven communication products.
• Strong problem-solving skills.
• Effective communicator in distributed and small teams.
• Able to work independently and clarify requirements when needed.

Project start: As soon as possible / by mutual agreement
Duration: 6+ months (extension possible)
Workload: 100%
Location: Primarily remote, with 9 onsite days per year in Frankfurt am Main for planning sessions

Responsibilities
 

Data Analysis & Feature Engineering
- Perform complex ad-hoc data analyses to identify relevant factors influencing forecasting models
- Prepare, explore, and transform large datasets using Python (e.g., pandas, polars) and SQL
- Develop robust features to improve model accuracy and quality
 

Forecasting & Machine Learning Model Development
- Design, implement, and train statistical, machine learning, and time-series models
- Work with methods such as regression models and neural networks
- Select appropriate modeling approaches based on business requirements, data structure, interpretability, and scalability
 

Model Validation & Quality Measurement
- Define, calculate, and interpret key model evaluation metrics
- Conduct cross-validation, backtesting, and stability analyses to ensure reliable and generalizable forecasts
 

Model Comparison & Performance Monitoring
- Compare different modeling approaches using standardized evaluation frameworks
- Monitor model performance over time, including data drift and model drift detection
- Analyze deviations between forecasts and actual outcomes
 

Operationalization & Integration
- Support integration of forecasting models into production data pipelines on AWS
- Collaborate with Data Engineers and BI Developers to deliver model outputs for reporting, planning, and decision-making
 

Data Quality & Model Robustness
- Ensure high data quality through plausibility checks, outlier detection, and missing-data handling strategies
- Assess model sensitivity to data changes and assumptions
 

Documentation & Communication
- Maintain clear documentation of model assumptions, training processes, and validation results
- Communicate forecast quality, uncertainties, and limitations to business stakeholders and management
 

Continuous Improvement
- Continuously enhance existing models based on new data, stakeholder feedback, and changing business requirements
- Stay updated on best practices and new methods in forecasting and model evaluation
 

Governance, Security & Compliance
- Implement IT security policies, regulatory requirements, and internal programming standards
- Ensure data privacy, security, and compliance in all data processing activities

Required Qualifications
Mandatory Requirements
- 5+ years of practical experience in designing, implementing, and validating forecasting, machine learning, and time-series models in production environments
- 5+ years of hands-on Python experience, especially with pandas or polars for data analysis, feature engineering, and model development
- 2+ years of SQL experience for data querying and preparation
- 3+ years of experience in model validation and quality measurement, including evaluation metrics, cross-validation, and stability analysis

Nice-to-Have Qualifications
- Experience with forecasting, machine learning, or time-series models based on graph databases (minimum 2 projects)
- Experience integrating forecasting models into production AWS data pipelines (minimum 1 project)
- Experience analyzing and processing data from railway control and signaling systems (minimum 1 project)