Jobs at Djinni

We are looking for a UBT Specialist who will be responsible for creating, testing, and scaling organic traffic through social media platforms.

We are seeking someone with a strong understanding of content, trends, and viral formats, who can quickly generate ideas, turn them into engaging videos, and validate hypotheses through hands-on testing.

What you'll do

• Research and generate viral ideas and content “hooks”
• Write scripts for short-form videos (TikTok / Reels / Shorts)
• Create and prepare accounts for publishing content
• Publish and test different content formats
• Analyze performance metrics: views, CTR, conversions
• Identify winning content angles and scale successful formats
• Coordinate with video editors and assign editing tasks
• Ensure content quality and performance standards
• Prepare basic performance reports
• Occasionally edit videos independently when needed

What we're looking for

• Experience in UBT, organic traffic, affiliate marketing, or content production
• Strong understanding of how TikTok / Reels / Shorts algorithms work and how content goes viral
• Ability to generate and test ideas quickly and at scale
• Strong skills in writing short, engaging video scripts
• Basic understanding of analytics (what works and why)
• Independence and initiative in day-to-day work
• Ability to work in a fast-paced, high-testing environment

What would be a plus

• Experience in video editing
• Ability to identify trends and adapt content accordingly
• Experience managing multiple accounts simultaneously
• Understanding of virality principles and audience retention

What we offer

• A fast-growing environment with minimal bureaucracy
• Support for professional development
• 15 paid vacation days
• 15 paid sick days
• 5 paid days off
• Benefit bar

Light Apps Group is looking for an experienced ASO & ASA Specialist to lead growth across a portfolio of mobile apps utility products. 🚀 You’ll own the full cycle of store optimization and Apple Search Ads, driving installs and scaling visibility across diverse verticals!

Location: Warsaw. Office / Hybrid

Format: Full-time

Seniority: Middle+, Senior
 

What you'll do

• Optimize app store presence (metadata, visuals, keywords) for multiple iOS and Android apps
• Plan and run A/B tests to boost conversion rates
• Manage and scale ASA campaigns, including CPP usage
• Analyze performance (CPI, ROAS, LTV, retention) and report insights
• Conduct competitor and keyword research
• Work cross-functionally with marketing, product, and design teams
• Monitor trends, maintain compliance, and test new strategies
   

What we're looking for

• 3+ years of experience in ASO and ASA
• Proven track record optimizing app listings and paid campaigns
• Experience with CPP (iOS) and CSL (Google Play)
• Strong data skills and familiarity with analytics/attribution tools
• Ability to manage multiple apps in different markets
   

What we offer

• A fast-growing environment with minimal bureaucracy
• Support for professional development
• 15 paid vacation days
• 15 paid sick days
• 5 paid days off
• Benefit bar

We are looking for a proactive and experienced Senior Microsoft 365 Engineer on a senior level to join our team and help operate, maintain, and continuously improve our Microsoft 365 platform in a large-scale enterprise environment. You are a self-driven professional with strong technical expertise, a passion for automation, and a proven track record of delivering sustainable solutions instead of temporary fixes. You proactively identify opportunities for improvement, take ownership of complex initiatives, and collaborate effectively with stakeholders across the organization

Requirements for the candidate:
Several years of professional experience as a Microsoft 365 Engineer.
Proven experience operating, administering, and continuously improving Microsoft 365 in complex enterprise environments supporting several thousand users.

Strong expertise in:
- Microsoft 365
- Exchange Online
- Microsoft Teams
- SharePoint Online
- OneDrive for Business
- Microsoft Entra ID (including app registration and Enterprise applications)
- Strong PowerShell skills to automate reoccurring tasks.
- Hands-on experience with hybrid environments, including Active Directory and Microsoft Entra Connect.
- Experience with M&A, carve-out, or post-merger integration projects.
- Experience planning and executing complex Microsoft 365 migrations, tenant consolidations, and tenant decommissioning projects.
- A structured and solution-oriented approach with a strong focus on quality.
- Excellent communication skills with the ability to explain technical concepts to non-tech stakeholders.
- Fluent English, both written and spoken. German is a plus.

Candidate responsibilities
- Operate and support Microsoft 365 enterprise services.
- Support the existing team in administering and continuously improving the Microsoft 365 platform.
- Administer, troubleshoot, and optimize Exchange Online, Microsoft Teams, SharePoint Online, OneDrive, and Microsoft Entra ID.
- Automate administrative processes using PowerShell and Microsoft Graph.
- Plan and execute complex Microsoft 365 tenant decommissioning projects.
- Act as point of contact for our User Services team, providing technical guidance and assisting with the troubleshooting of issues affecting the Microsoft 365 platform.
- Analyze and resolve complex technical issues as part of the 3rd Level Support team.
- Create and maintain technical documentation, standards, and operational procedures.
- Collaborate with stakeholders across teams
- Drive Microsoft 365 and Entra ID cleanup activities related to post-integration technical debt, (ex: distribution lists, shared mailboxes, SharePoint sites, Teams, and access-related objects)
- Drive Microsoft 365 related backlog reduction by analyzing recurring support patterns, resolving prioritized issues, and turning repeatable requests into automation, documentation, or sustainable platform improvements

TodaPay is an international fintech company operating in the digital payments and financial infrastructure space across multiple jurisdictions. We support high-growth payment operations with multi-currency transactions, crypto payments, and complex corporate structures.
We are looking for a detail-oriented and proactive Accountant to join our Finance team and support core accounting operations, financial reporting, payroll processing, and coordination with external accountants and auditors across jurisdictions.

Requirements
Experience
• 3+ years in a Business Analyst or Systems Analyst role
• Required: experience in fintech, payment systems, or banking
• Experience with payment processes: acquiring, processing, PSP/PayFac — preferred
• Participation in Agile/Scrum teams: grooming, planning, retrospectives

Technical Knowledge
• Proficiency in BPMN 2.0, UML (Use Case Diagram, Sequence Diagram, Activity Diagram)
• Understanding of the transaction lifecycle: auth → capture → settlement → reconciliation
• Knowledge of dispute resolution and chargeback processes (Visa / Mastercard rules)
• Experience with REST API documentation: reading, writing, testing via Postman / Swagger
• Basic understanding of PCI DSS scope, AML/KYC requirements in the context of payment systems
• Proficiency with tools: Confluence, Notion, Jira/Linear, Miro/Lucidchart

Personal Qualities
• Systems thinking: sees the process as a whole, not just within the scope of a task
• High attention to detail in specifications and edge cases
• Proactive: asks the right questions, doesn't wait for a ready-made spec
• Clear written and verbal communication in English
• Comfortable at the intersection of business and technology; doesn't shy away from developer
conversations

Responsibilities
Requirements & Documentation
• Gathering business requirements from stakeholders: commercial, risk, compliance, merchants
• Writing functional specifications, user stories, and acceptance criteria (Definition of Done)
• Modeling business processes in BPMN 2.0 notation — AS-IS and TO-BE
• Maintaining and updating product documentation in Confluence / Notion

Payment Processes
• Describing and optimizing payment flows: authorization, clearing, settlement, refunds, chargebacks
• Analyzing and documenting transaction routing logic and waterfall strategies
• Gap analysis during platform consolidation and merchant migration
• Supporting integrations with acquirers and PSP providers via REST API / ISO 8583

Team Collaboration
• Active participation in grooming, sprint planning, UAT, and demos
• Close collaboration with Product Owner, developers, and QA
• Communication with compliance/risk on regulatory requirements (PCI DSS, AML/KYC)
• Preparing training materials for operations teams and merchants

Nice to have
• Understanding of high-risk market specifics and regulatory constraints
• Knowledge of financial messaging protocols (ISO 8583/ISO 20022)
• Hands-on experience describing and automating rolling reserves and dispute management processes
• Participation in consolidation or re-platforming projects in fintech

We offer 

• Opportunity to work in a fast-growing international fintech company
• Professional growth opportunities alongside with company 
• 24  paid vacation days per year and 5 paid sick leave days per year
• 10 Public holidays days 
• An opportunity to work full remote or hybrid flexibility 
• Collaborative and friendly team 
• Professional education budget after 6 months working in the company 
• Birthday gift bonus for all our employees

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies.

We are looking for a Ad Operations specialist to join our team!

Requirements:

- Experience in Media Buying, Ad Operations, Account Management, or a related operational role within the digital advertising industry

- Understanding of Meta Ads and Google Ads ecosystems and their operational workflows

- Understanding of the advertising account lifecycle, including account limits, restrictions, bans, replacements, account health, and risk management

- Ability to work confidently with spreadsheets, operational data, and reporting systems

- Ability to manage multiple operational tasks and priorities in a fast-paced environment

- Strong attention to detail and a high level of accuracy when handling account-related and financial data

- Basic understanding of advertising infrastructure and campaign launch processes

- Strong problem-solving skills and a proactive approach to operational challenges

Will be plus

- Experience working with Agency Accounts

- Experience working within Media Buying teams

- Experience interacting with advertising account providers

- Understanding of account farming processes and supporting infrastructure

- Knowledge of Meta and Google platform policies, restrictions, and anti-fraud systems

- Experience working with CRM systems, dashboards, tracking tools, and reporting platforms

- Understanding of top-up processes, billing, spend tracking, and account management workflows

Responsibilities:

1. Operational Support of Advertising Accounts

Manage and support advertising accounts across Meta and Google platforms throughout their full lifecycle. Monitor account statuses, spending limits, restrictions, bans, replacements, and overall operational stability. Coordinate account issuance, maintain account availability for clients, and ensure the timely resolution of infrastructure-related issues affecting advertising activity.

2. Client Communication and Operational Support

Serve as the primary operational point of contact for clients. Support clients with account-related requests, top-ups, replacements, account availability, troubleshooting, and day-to-day operational matters. Ensure smooth communication between clients, providers, and internal teams while maintaining a high level of service and responsiveness.

3. Provider Interaction and Account Coordination

Coordinate with advertising account providers regarding account allocation, replacements, limits, account quality, operational incidents, and ongoing maintenance. Build and maintain effective provider relationships to ensure stable account supply, fast issue resolution, and continuity of client operations.

4. Monitoring of Operational and Financial Processes

Maintain accurate records related to advertising account activity, including top-ups, balances, spending activity, withdrawals, and account utilization. Support internal reporting processes and ensure data accuracy across spreadsheets, dashboards, tracking systems, and operational financial records.

5. Media Buying Ecosystem Support

Provide operational support related to media buying workflows and advertising infrastructure. Assist clients and internal teams with account-related questions, platform restrictions, operational risks, account health, and advertising execution processes across Meta and Google ecosystems.

6. Internal Process Optimization

Identify operational inefficiencies and contribute to the development of scalable internal processes related to advertising account management, provider coordination, reporting systems, and client operations. Participate in ongoing improvements of operational workflows and infrastructure.

7. Cross-Functional Collaboration

Work closely with Business Development, Operations, Finance, Product, Support, and external partners on matters related to advertising account operations and client infrastructure. Coordinate operational initiatives, resolve cross-functional issues, and support continuous improvements across teams.

What are the conditions and bonuses?

- An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

- Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

- Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

- Laptop & all necessary equipment for work according to the ecosystem standards;

- Paid vacations, personal events days, days off;

- Paid sick leave;

- Medical insurance;

- Referral program enjoy cooperation with your colleagues and get the bonus;

- Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

- Free internal English courses;

- Sport benefit;

- Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

- Company events, team buildings. 

• Possess perfect communication skills.

• High emotional intelligence, empathy and patience when dealing with customers.

• Can and enjoy explaining processes step by step and guiding customers.

• Written and spoken English or/and Spanish (minimum B2).

• Previous experience in customer service in the gaming or iGaming industry (preferred).

• Flexible and adaptable.

• Disciplined with a strong work ethic.

• Ability to multi-task.

• Stress-resistant.

• Proven ability to meet and exceed targets.

Responsibilities:

• Identify user needs, understand their preferences and guide them toward the most suitable offers or features.

• Check and investigate issues on the platform by simulating user actions or testing scenarios. Report and document any technical problems clearly.

• Leverage the existing customer base provided by your team leader for effective outreach.

• Establish strong relationships with customers, gaining their trust and confidence through attentive listening and empathetic communication.

• Demonstrate a comprehensive understanding of the company's products and services, effectively presenting them to customers and highlighting their benefits.

• Address customer objections calmly and persuasively, providing clear and convincing explanations to overcome concerns and secure sales.

• Identify and refer potential VIP customers to the VIP base.

• Escalate user issues to the relevant department and coordinate with internal teams to ensure timely resolution.

• Follow up with clients to ensure issues are resolved and promotions are correctly activated or used.

• Share ideas for feature improvements, user experience enhancements, and workaround solutions with internal teams.

• Inform users about new bonuses, games, and promotions — especially those tailored to their interests.

• Gather feedback directly from players and share insights with Product, Sales, and Marketing teams to improve offerings.

• Assist in onboarding and supporting new team members with product and process training (Spanish support focus).

• Keep clear and accurate records of calls, cases, and work outcomes in Backoffice and internal working files.

• Consistently hit and exceed service KPIs – including contact rate, conversion rate, and customer satisfaction.

• Contribute to the growth of the team by mentoring less experienced agents and sharing your best practices.

• Stay sharp and informed through regular knowledge checks and product training to ensure top performance.

General terms and conditions:

• 15 working days of paid vacation in a year;

• 12 working days of paid sick leave in a year;

Numerical Technologies LTD is a provider of custom software solutions and services specializing in risk, limits, and regulatory capital. We are currently looking for a Senior Software Developer to join our team. 

Project: Development of a Market Risk platform for a global financial institution, supporting risk analytics, market data processing, and large-scale financial applications. 

What you will be doing:

As part of the team, you will be participating in a client project focused on Market Risk Technology solutions. You will help develop new software features, as well as support and maintain existing ones. You will write scalable and fault-tolerant code, debug applications, and build solutions for market data processing and risk analytics. You will collaborate closely with the client, product managers, and engineering teams to understand the system’s functional and non-functional requirements. You will contribute to code quality through unit testing, integration testing, code review, and system design to build robust software that aligns with the client’s business needs. 

What we are looking for:  

• 7+ years of professional software engineering.
• Expert-level in Java/Scala or C++ combined with strong Python. 
• Strong knowledge of object-oriented programming, algorithms, and data structures.
• Experience designing scalable backend applications, frameworks, or data platforms.
• Experience building backend systems and working with REST APIs.
• Experience working with SQL, large datasets, and data processing pipelines. 
• Experience with automated testing and CI/CD practices.
• Experience using distributed computing technologies is a strong plus.
• Strong problem-solving skills and ability to collaborate effectively in a team environment.
• Upper-Intermediate level of English or above. 
• Bachelor’s degree or higher.

What will be a plus: 

• Experience in financial services or Market Risk systems.
• Knowledge of Historical VaR, Expected Shortfall, or FRTB.

What we offer:

• Competitive compensation depending on experience and skills.
• Regular performance assessments and salary reviews.
• Paid personal days.
• Mental health support program.
• Language classes.
• Flexible working schedule.

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies. 

We are looking for a Head of CRM to join our team!

Requirements

• Experience in strategic management of the CRM or Retention Marketing function;
• Deep understanding of communication channels (SMS, Email, Push, NC, Pop-up, messengers) and personalization principles;
• Experience implementing operational standards, processes, and KPIs for a CRM team;
• Skills in campaign performance analysis, A/B testing, segmentation, and communication optimization;
• Strong leadership and communication skills, with experience managing functional teams;
• Understanding of working with user data and associated legal risks.

Soft Skills

• Analytical and critical thinking;
• Stress resilience and adaptability;
• Proactivity and initiative;
• Leadership.

Responsibilities

• Development and implementation of the CRM function strategy across all assigned products and regions;
• Development and implementation of communication policies;
• Quality control and relevance of communications with players through channels: SMS, Email, Push, NC, Pop-up, and others;
• Coordination of team activities;
• Optimization and automation of tools and processes for creating, launching, and analyzing communications;
• Ensuring the quality, functionality, and reputation of the communication ecosystem;
• Monitoring the effectiveness of communication campaigns and trigger chains, conducting A/B tests, and implementing best practices;
• Collaboration with cross-functional teams: RMM, Content, PM, Support, Product, Call Center, and others to synchronize communications and campaigns;
• Supporting and developing the professional level of the team through training, onboarding, motivation, and mentoring;
• Ensuring timely and coordinated CRM operations during the launch of new regions, products, and features.

What are the conditions and bonuses?

☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

💵Referral program enjoy cooperation with your colleagues and get the bonus;

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🗣Free internal English courses;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

We are looking for a Senior Data Analyst to join our global team. This is not a standard analyst role. We are building a dynamic identity resolution system where AI is deeply integrated — both as a productivity multiplier and as a core component of our data processing logic for identity resolution and LLM-based scoring.

We run enrichment against 70+ TB of data, apply AI and LLM-based scoring on top, and process around 20 million enrichment operations per day across hundreds of thousands of records.

The analytical challenges ahead are substantial: how to measure the quality of AI-driven scoring, how to validate that a change makes the system better, how to know where our money and time deliver the most value, and how to turn the questions our internal teams bring in into fast data-backed answers. You will own this side of the business, working daily alongside engineers and the product lead to turn these challenges into decisions that ship.

The main part of the role is not building dashboards — it is the data work that makes a meaningful dashboard possible in the first place.

 Concretely, you will be:

• Looking at data from multiple vendors side by side and deciding what to trust.
• Reconciling entities across sources that have different shapes and quality.
• Proposing and validating the logic that matches and scores them.
• Defining metrics and ground truth for questions nobody has asked before.
• Tracing why numbers don't line up across partial and sometimes contradictory sources.
  
  Responsibilities:
• Measurement & Evaluation Foundations: Define how we measure what matters — data quality, the accuracy of our AI scoring, how many records actually get matched to usable signals, cost per outcome. Build the feedback loops that tell us whether a change makes the system better or worse.

• Scoring Intelligence (co-owned with engineers): Partner with the engineering team on the LLM-based scoring system. You will build the evaluation framework for AI scoring, run experiments comparing prompts, models, and approaches against a baseline, and make data-backed calls on where we invest next. Our AI scoring system is actively evolving — you will shape how we measure and improve it.

• Client-related Analysis: Own the analytical side of the work that internal sales and media-buying teams bring in from pharma clients — how reachable a target audience is, how good the data looks, why a campaign performed the way it did. You turn their questions into data-backed answers they can use. Identity is a product core; the analyst works with internal teams, not with clients directly.

• Cost and Value Analysis: Turn cost and value into product decisions. Which data sources and enrichment scenarios pay off, where we overspend, what to cache, what to cut. We operate a mix of free owned data and paid external providers — the decisions have real dollar impact.

• Active AI Usage: Use Claude Code and modern AI engineering tools to multiply your own output. Automate the repetitive parts of analysis so you can focus on the decisions. We provide Claude Code licenses and expect active daily use.

• Data Quality Response: When pipeline output drifts, a provider degrades, or upstream data shifts, you notice first, diagnose the root cause, and drive the fix. You treat data quality as a product, not a ticket queue.
   

Requirements:

• 5+ years as a Data Analyst, Analytics Engineer, or Data Scientist in a product team (not consultancy, not BI-only roles).
• Advanced SQL at TB scale — BigQuery, Snowflake, or equivalent warehouse. You can read and write complex queries on tens of terabytes without someone pre-modelling the data for you.
• Python for analysis at a working level — pandas, Jupyter, or modern equivalents. Comfortable putting together a small script or helper when an existing tool doesn't cover your case.
• Built measurement or evaluation frameworks from scratch for systems that had no baseline. You are comfortable defining what and how to measure, not consuming someone else's KPI.
• Comfort with probabilistic systems. You understand that noise is inherent and 100% accuracy is not the goal — scoring, matching, ranking.
• AI-native workflow. You already use Claude Code, ChatGPT, Copilot, or similar AI tools daily and integrate them into your analytical process.
• English: B2+ (Upper-Intermediate) or higher.

Strong plus (one or more)

• LLM evaluation experience — A/B testing AI-powered features, output scoring, prompt iteration with measurable outcomes.
• Identity resolution / identity graph experience — adtech, martech, or customer data platform context (LiveIntent, LiveRamp, Epsilon, Experian Marketing, Acxiom, Merkle, or similar).
• Healthcare or pharma data — working with NPI, HCP-level data, healthcare taxonomies, pharma targeting.
   

Nice to have:

• Experience running controlled experiments on data pipelines.
• Prompt engineering or structured LLM prompt design.
• Prior work in AI-first product companies.

Culture & Mindset

• Self-improvement: You are a fast learner. You don't fear AI replacing you; you master it to replace your manual tasks.
• Ownership: You treat the Identity domain as your own business. If scoring quality drifts or a provider degrades, you notice it and drive the fix without being asked.
• Internal Locus of Control: You take responsibility for outcomes. If external data shifts or an API changes, you build around it instead of blaming the provider.
• Get It Done: You prioritize shipping answers. You know when to send a rough estimate and when to build a proper framework.

Openness: You share findings and admit mistakes openly — both wins and failures travel across the team. If you spot a better way to do something, you volunteer it without being asked.

Ascendix Technologies is scaling its AI delivery capability and looking for a senior-level AI Architect who can lead real-world AI implementations across client delivery, solution architecture, and pre-sales. We are actively investing in AI engineering capabilities and building a long-term AI practice designed around practical, production-ready delivery. 

If you thrive in high-ownership environments, move fast, and enjoy solving complex engineering problems with AI at the center, this role is for you. 

What We’re Looking For 

AI Engineering & Delivery (Products and with AI)

• Building AI into products: Hands-on experience integrating LLMs into real applications; experience with RAG, AI agents, copilots, or AI workflow orchestration.
• Building products with AI: You already use AI in your development workflow (LLM-assisted coding, prompt engineering, AI-based testing/code review, automation) and can point to examples where this has accelerated delivery. 

Architecture & Backend Engineering

• Strong backend engineering and architecture experience. We’re not tied to a specific language or framework. What matters is that you can architect robust, scalable backend systems and that you understand why certain decisions matter.
• Proven experience shipping production systems end-to-end. Not just designed it, not just prototyped it. You’ve been responsible for something real that runs in production and that clients depend on.
• Infrastructure and scalability awareness. 

Client-Facing & Communication

• Strong communication and client-facing skills, with the ability to present and explain complex solutions to both technical and non-technical stakeholders, including executives.
• Solid English proficiency suitable for executive-facing conversations. 

Ways of Working

• Ability to operate with high ownership and minimal handholding.
• Works effectively within a delivery team, including engineers, consultants, and BAs, rather than as a solo contributor. 

Nice to Have:

• Consulting or pre-sales experience (POC scoping, proposal shaping, estimation).
• Full-stack development background.
• Salesforce or CRM ecosystem exposure.
• Experience in real estate or financial services domains.

What You’ll Do 

Architect & Deliver AI-First Solutions

• Design and build production-grade AI-powered applications.
• Implement RAG pipelines, AI copilots, LLM integrations, and agentic workflows.
• Own architecture decisions across backend, infrastructure, scalability, and deployment.
• Lead technical delivery for client-facing AI initiatives. 

Use AI to Accelerate Engineering
We expect AI to be part of your development workflow. 

You should already be using:

• LLM-assisted coding;
• AI-powered development tools;
• Prompt engineering;
• AI-based testing and code review;
• Intelligent automation workflows. 

Support Pre-Sales & Client Conversations

• Join discovery and solutioning calls with prospects.
• Translate business problems into realistic technical solutions.
• Provide architecture direction and delivery estimates.
• Communicate clearly with both technical and non-technical stakeholders. 

Help Shape the AI Practice

• Define reusable AI architecture patterns.
• Improve AI delivery standards and engineering workflows.
• Influence tooling, implementation approaches, and best practices.
• Work directly with senior architects and leadership/C-level.
• Mentor engineers and team leads on AI delivery practices.
• Lead and operate small delivery teams under compressed timelines. 

Ascendix offers you:

Healthcare:

• 20 paid vacation
• 5 paid sickness

Career and professional growth:

• B2B and remote cooperation
• Career development and professional growth
• Technical performance reviews and 360 Evaluation
• Collaboration with a personal Direct Manager, Technical leads, and mentors

Learning and Development:

• Udemy and Pluralsight subscription
• Internal knowledge-sharing opportunities

Corporate spirit:

• Online and offline events & team-buildings
• Friendly and supportive atmosphere
• Open management

The quality of RLVR training data is one of the highest-leverage problems in AI right now. Bad environments, noisy rewards, and weak task specs silently degrade model capabilities — and most teams don't catch it until it's too late. At Arimlabs, we produce RL environments across software engineering, cybersecurity, SRE, finance, and policy — which means the surface area for subtle data quality failures is enormous, and the payoff for catching them is real. We're hiring someone to own that problem end-to-end.
 

What You'll Do

You'll lead data quality and experimentation strategy across our RLVR pipeline — not as a support function, but as the person whose judgment determines what's good enough to ship and what isn't.

• Set and enforce quality standards across RLVR environments produced by multiple domain teams — catch broken tests, weak specs, false positives, and reward hacking before they contaminate training.
• Design and run controlled SFT/RL/RLVR experiments to measure how dataset changes impact model performance. You decide what to test and how.
• Analyze trajectories, pass rates, reward distributions, task difficulty curves, and failure modes to figure out what's working and what isn't — then drive changes based on what you find.
• Partner with SPLs and domain teams to close the loop, translating experimental results into concrete data quality improvements.
• Shape our public evals, new data types, and external-facing research that raises the bar for the field.
• Publish blog posts, technical reports, and research writeups that share what we're learning.

What We're Looking For

• Strong quantitative instincts and hands-on familiarity with LLM training, RLHF/RLVR pipelines, or evaluation methodology.
• A genuine obsession with how data structure, selection, quality, and reward design drive model behavior — not just awareness, but the kind of curiosity that keeps you digging.
• Ability to design lightweight experiments, move fast, and extract signal from messy, ambiguous results.
• Comfort working across domains — you won't need deep expertise in cybersecurity or finance, but you will need to review environments built by specialists in those areas, ask the right questions, and spot when something doesn't hold up.
• Bias toward building and testing over theorizing. We care about what the experiments show, not what sounds elegant.
• Sharp attention to detail. The failure modes in RLVR data are subtle, and catching them is the job.

Who Tends to Thrive Here

• Undergrad or master's researchers with serious, hands-on research experience. A PhD is welcome but not required — what matters is whether you've done the work.
• People who've worked or interned at RL environment companies, AI safety orgs, benchmarking teams, or eval-focused groups (think METR, Artificial Analysis, Apollo Research, or similar).
• Early-career candidates who want to grow with a team that's still small enough for them to shape how we do things — and become central to our data quality and experimentation process long-term.

We are looking for a Senior PHP Developer to join a long-term project focused on building and evolving a complex data-processing platform in the Construction Technology domain.

This role is centered around backend architecture, high-load systems, and real-time data processing. You will be responsible for designing scalable services, managing asynchronous data flows, and ensuring reliable ingestion and processing of IoT device data.

The platform plays a key role in workforce tracking, operational efficiency, and automation of field processes. It processes large volumes of real-time data and applies complex business logic for workforce scheduling and analytics.

This is a backend-focused role with high ownership and impact on system architecture and performance.
 

Benefits

• Opportunity to solve complex architectural and high-load challenges
• Professional growth within a scaling tech company
• High-impact role in a real-world IoT and data-driven product
• Work with modern backend technologies and distributed systems
• Remote-first environment with flexibility and autonomy
   

About the Client

International product company in the Construction Technology domain, focused on automating workforce management processes through IoT and cloud-based solutions.

The product replaces manual time tracking with automated data collection, improves payroll accuracy, and enables real-time tracking of workforce operations and analytics.
 

About the Project

The platform’s core processing system is responsible for IoT data ingestion, real-time processing, and advanced workforce scheduling logic.

The system provides real-time dashboards and analytics for operational decision-making.
 

Location: United States

Duration: long-term
 

Requirements

• 3+ years of commercial experience with PHP in backend development
• Strong expertise in Laravel and its ecosystem in production environments
• Deep knowledge of PostgreSQL, including optimization, indexing, and schema design
• Experience with Laravel Jobs and queue systems (Redis, SQS)
• Solid understanding of RESTful APIs and third-party integrations
• Experience with Eloquent ORM performance tuning and N+1 query prevention
• Familiarity with Docker and containerized development
   

Additional Requirements

• Strong understanding of SOLID principles and clean code practices
• Strong problem-solving skills and attention to detail
• Experience working in Agile/Scrum environments
• Upper-Intermediate (B2+) English level for spoken communication
   

Responsibilities

• Design and implement scalable backend services and APIs
• Architect and evolve backend systems for high-load environments
• Optimize complex database queries to handle large volumes of real-time data
• Build and manage asynchronous processing using queues and background jobs
• Ensure reliable ingestion and processing of IoT-driven data streams
• Conduct code reviews and maintain high standards of code quality
• Refactor legacy components into modern, maintainable service patterns
• Collaborate with product and engineering teams to translate business requirements into technical solutions
   

🇺🇦 Additional Notes

• We consider candidates both in Ukraine and abroad
• For specialists based in Ukraine, we provide the option of official booking (reservation)

We are building the next generation of AI Agentic Marketing Solutions specifically for the Game Development industry. We don’t just build simple chatbots; we build autonomous agents that plan, execute, and optimize User Acquisition (UA) and marketing campaigns for gaming studios.

We are looking for a versatile Product Engineer based in Europe to join our high-performance team and build the end-to-end features that power our agents.

The Role

You will be the bridge between our AI logic and the user experience. You will work across the entire stack—from developing AI agents to building the FastAPI endpoints that drive our agents that our clients use to manage their AI marketing teams.

Key Responsibilities

• Agents Development: Build and maintain AI agents and features from the database level up to the UI.
• Agent Integration: Work closely with our AI team to integrate LangGraph/LangChain workflows into the platform.
• API Design: Develop and optimize high-performance APIs using Python (FastAPI).

Requirements

• AI Expertise: Proven track record of building and scaling AI-powered products. You know the difference between a tutorial and a production-grade agentic system. While you don't need to be an AI researcher, you should have experience with LLM integration and agentic frameworks. 
• Engineering Mastery: 5+ years of experience in software engineering. Solid Python skills with a focus on asynchronous programming (FastAPI, AsyncIO). Familiarity with PostgreSQL, Redis, and modern CI/CD practices. 
• Agentic Frameworks: Deep experience with LangGraph, LangChain, and/or similar libraries.
• Product Mindset: You care about the user experience and understand how your code impacts the business goals of our GameDev clients. 

What We Offer

• High Impact: No bureaucracy. Your code shapes the future of GameDev marketing.
• Elite Team: Work alongside senior experts who value "Delivery in 1 Second" and relentless improvement.
• Medical Insurance in Ukraine and Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leaves, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement.

We are building the next generation of AI Agentic Marketing Solutions specifically for the Game Development industry. We don’t just build simple chatbots; we build autonomous agents that plan, execute, and optimize User Acquisition (UA) and marketing campaigns for gaming studios.

We are looking for an AI Jedi—a top-tier engineer who lives and breathes agentic orchestration and can solve the most complex problems in the LLM space.

The Role

This is a high-impact, individual contributor role for a master of AI engineering. You will be responsible for the "brain" of our platform. We need someone who can move beyond basic RAG and prompt engineering to build sophisticated, self-correcting, and autonomous agentic workflows that deliver results for the world’s biggest gaming studios.

Key Responsibilities

• Architecting Autonomy: Design and implement high-level agentic orchestration using LangGraph or custom state-machine frameworks.
• AI Excellence: Solve complex challenges related to agent memory, long-term planning, and multi-agent collaboration.
• Performance & Reliability: Build robust evaluation loops and guardrails to ensure our agents perform reliably in production environments.
• Innovation: Stay at the absolute bleeding edge of AI research, quickly turning new papers and techniques into production-ready features.

Requirements

• Deep AI Expertise: Proven track record of building and scaling AI-powered products. You know the difference between a tutorial and a production-grade agentic system.
• Python Mastery: Expert-level Python skills with a focus on asynchronous programming (FastAPI, AsyncIO).
• Agentic Frameworks: Deep experience with LangGraph, LangChain, and/or similar libraries.
• Infrastructure Savvy: Comfortable with Vector Databases, high-scale data pipelines, and cloud infrastructure (AWS/K8s).
• Startup DNA: You are a "Builder." You value speed, pragmatism, and shipping code that works over theoretical perfection.

What We Offer

• High Impact: No bureaucracy. Your code shapes the future of GameDev marketing.
• Equity & Growth: A fast-track path to a key leadership role with a stake in the company’s success.
• Elite Team: Work alongside senior experts who value "Delivery in 1 Second" and relentless improvement.
• Medical Insurance in Ukraine and Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leaves, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement.

We are looking for a Senior Frontend Developer to join a long-term project focused on building and evolving a complex, data-intensive platform in the Construction Technology domain.

This role is centered around frontend architecture, high-load web applications, and real-time data visualization. You will be responsible for designing scalable frontend solutions, optimizing rendering performance, and ensuring smooth interaction with large volumes of live operational data.

The platform plays a key role in workforce tracking, operational efficiency, and automation of field processes. It processes large streams of real-time data and delivers advanced dashboards, analytics, and scheduling interfaces used in day-to-day operations.

This is a frontend-focused role with high ownership and significant impact on product architecture and user experience.

Benefits:

• Opportunity to work on complex high-load frontend architecture challenges
• Professional growth within a scaling international tech company
• High-impact role in a real-world IoT and data-driven product
• Remote-first environment with flexibility and autonomy
• Collaborative international engineering team

Requirements:

• 4+ years of commercial experience in Frontend Development
• Expert-level knowledge of Vue 3 (Composition API) and Nuxt 3
• Strong experience building and optimizing high-load web applications
• Deep understanding of state management solutions (Pinia or similar)
• Strong proficiency in TypeScript and modern JavaScript (ES6+)
• Experience with Server-Side Rendering (SSR) and frontend rendering optimization
• Expertise in browser performance profiling and optimization
• Experience working with large datasets, dashboards, tables, or real-time interfaces
• Experience with WebSockets or Server-Sent Events (SSE) for real-time data integration
• Strong understanding of responsive and accessible UI development
• Additional Requirements:
• Strong analytical and problem-solving skills
• Attention to UI/UX performance and scalability
• Ability to take ownership of large frontend features and architecture decisions
• Experience working in Agile/Scrum environments
• Excellent asynchronous communication skills

Responsibilities:

• Architect, build, and maintain scalable frontend solutions using Vue 3 and Nuxt 3
• Develop and optimize data-heavy UI components and real-time dashboards
• Implement advanced rendering strategies such as virtual scrolling, lazy loading, and pagination
• Collaborate closely with backend engineers to integrate complex APIs and real-time data streams
• Lead frontend performance optimization initiatives for high-load environments
• Maintain high standards of code quality through code reviews and testing
• Translate complex product requirements and UI/UX designs into performant interfaces
• Troubleshoot and resolve frontend architectural bottlenecks and performance issues
• Contribute to frontend architecture decisions and long-term technical strategy

About Client:

A construction workforce management platform that replaces manual time tracking with AI-powered biometric verification. It helps contractors capture accurate hours, reduce payroll errors, track crews and cost codes in real time, and sync clean labor data into systems like Procore, CMiC, Vista, and Power BI.

Location: United States

About project:

The platform's core processing system. Handles IoT data ingestion and advanced scheduling. Delivers real-time dashboards and mobile views with live labor analytics for construction managers.