Jobs

We are the creators of a new fintech era!
Our mission is to revolutionize the world by making blockchain technology accessible to everyone in everyday life. WhiteBIT is a global team of more than 1,200 professionals united by a shared vision of shaping the Web3 future.
We are building our own blockchain ecosystem, ensuring maximum transparency and security for over 8 million users worldwide. Our cutting-edge solutions, rapid adaptation to market challenges, and technological excellence set us apart from traditional companies.
Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT, and VISA.


The future of Web3 starts with you — join us as a Middle Manual QA Engineer!

Requirements:

— 3+ years of experience in Quality Assurance and Testing.
— Confident knowledge of OS: macOS, Windows, Linux.
— Basic knowledge of SQL.
— Understanding the DOM structures of web pages.
— Experience with any packet sniffers (e.g. Fiddler, Burp Suite, Charles, etc.)
— API testing experience.
— Experience working with API clients (Postman).
— Knowledge of Software Testing Life Cycle.
— Understanding of client-server architecture.
— Creating and working with test documentation: checklists, cases, bug reports.
— Experience working with developer tools in browsers (Chrome, Firefox, Safari, Opera, etc.).
— Experience with bug-tracking systems (Jira, Confluence, Qase or similar test management tools).
— Experience with CI tools, like TeamCity, GitHub Actions (used for auto-running and managing).
— Experience with virtual environments.
— Good understanding of testing methodology and principles.
— Basic knowledge of GitHub.
— Experience working with cryptocurrency platforms and exchanges.
— Experience with fiat payment providers and related integrations.

Responsibilities:

— Business requirement analysis.
— Creating test documentation (checklists, bug reports, plans, and procedures).
— Functional, usability, acceptance, exploratory, regression, and smoke testing of system.
— Communicate with Delivery managers and team members to understand details of features and peculiarities of implementation.
— Testing mobile applications on iOS/Android.
— REST API testing.
— Estimate, prioritize, and coordinate testing activities.
— Working with developer tools in browsers.
— Working with Agile / Scrum desk.

Would be a plus:

— Practical experience with test automation (API, End-to-End, UI).
— Experience testing blockchain-based applications.
— Understanding of crypto security best practices.

Work conditions:

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.
Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.

Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.
Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.

Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 24 calendar days of paid leave.
— 5 calendar days of sick leave.
— Additional days off for national holidays.

About the role

At RubyLabs, we’re seeking a senior AI Engineer (Node.js / Next.js / TypeScript) to shape our AI infrastructure and drive production-ready LLM experiences. You’ll work in a modern stack, making data-driven decisions around model performance, reliability, and cost.

You’ll own advanced prompt systems, structured outputs, and complex LLM workflows using LangChain or LlamaIndex. Observability, debugging, and evaluation are core to the role, leveraging Langfuse and AI gateways like OpenRouter to continuously improve model quality and operational efficiency. You’ll take full ownership of key AI features from experimentation to live production.

Key Responsibilities

• Advanced Prompt Engineering: Designing complex, dynamic prompt templates with conditional logic and efficiently reusing information and context within prompts to maximize generation quality and reasoning.
• Structured Outputs & Schemas: Implementing various response schemes (JSON mode, function calling, Zod/JSON schemas) to ensure AI outputs are predictable and ready for seamless integration into application logic.
• Prompt Engineering & Evaluations: Building robust evaluation pipelines and using Langfuse to collect feedback and score the quality of responses in real time.
• Tracing & Debugging: Performing deep debugging of complex LLM chains using Langfuse traces to identify bottlenecks and optimize for cost, latency, and context window usage.
• AI A/B Testing: Running systematic experiments across different models via OpenRouter (e.g., comparing Claude 3.5 Sonnet vs. GPT-4o) and analyzing results based on quantitative metrics.
• Data-Driven Decisions: Making deployment decisions for new prompts or models strictly based on quantitative benchmarks and trace data, rather than intuition.
• Output Scoring & Analysis: Developing scoring systems to analyze the “Problem → Solution” chain and identify root causes of hallucinations or logic errors using Langfuse analytics.
• Model Performance & Fine-Tuning: Regularly re-evaluating model performance as new architectures emerge and performing fine-tuning when necessary to meet specific domain requirements.

Qualifications

• Node.js & Next.js: Deep knowledge of the stack to build reliable services and handle complex LLM-generated data.
• Dynamic Prompting Skills: Proven experience in building prompts where content is highly dependent on input variables and context injection.
• OpenRouter Experience: Experience working with unified APIs, managing rate limits, and selecting the most cost-effective models for specific tasks.
• Langfuse (or similar): Understanding of LLM observability principles — setting up tracing, creating test datasets, and integrating scoring systems.
• Evaluation Methodology: Experience with frameworks like RAGAS or building custom “LLM-as-a-judge” systems.
• Analytical Mindset: Ability to transform raw generation logs into actionable business metrics and technical insights.
• Iterative Mindset: Focus on continuous product improvement through constant feedback loops.

Nice to have

• Fine-Tuning: Practical experience in fine-tuning models for specific domain tasks or JSON compliance.
• RAG Architecture: Understanding how to build and optimize Retrieval-Augmented Generation systems, including indexing, retrieval, and re-ranking.
• Python: Basic knowledge for working with data science scripts or AI evaluation libraries.

Location

Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.

Benefits

Discover the perks of being part of our vibrant team! We offer:

• Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
• Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
• Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
• Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
• Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview?tab=t.0

Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!

Interview Process

After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:

• Recruiter Screening (40 minutes)
• Technical Interview (60 minutes)
• Final Interview (30 minutes)

What you will actually do

• Design and build complex API integrations connecting internal and client systems — Wrike, Azure DevOps, Claude, and others
• Take full ownership of development tasks — from requirements and architecture through to testing and release
• Build new products, features, and internal tools from scratch — not just scripts, but shippable code
• Automate repetitive workflows — status and data syncs, report generation, and recurring manual processes
• Work with Claude as your primary coding partner — prompt, iterate, and ship production-ready code
• Create weekly POC demos — prove the concept fast, refine later
• Continuously improve existing systems, reduce technical debt, and contribute to overall product direction
• Share findings with the team — short demos, Slack notes, or writeups when something works well

What we look for

Must have:

• You treat AI as a primary development tool — not a novelty, not a limitation
• When AI gives a weak result, you improve the prompt, guide the iteration, and validate the output instead of defaulting to manual work
• Solid coding ability in any language — Python, JS, C#, or similar
• Good English, B2 or above — all AI tools, docs, and team communication are in English
• A side project, automation, or experiment you built with AI — even unfinished
• Strong initiative and fast learning, not polished seniority

Nice to have:

• Hands-on experience with Claude, Cursor, Copilot, or similar AI coding tools
• Familiarity with Azure DevOps or GitHub CI/CD
• Latvia and Eastern Europe preferred - must be able to overlap with Riga working hours

This role is not for you if…

• You think AI is useful for autocomplete but not for real development work
• Your reaction to an AI mistake is “see, it doesn’t work” rather than “let me fix the prompt”
• You need complete specifications before you can start building
• You prefer proven, established tools over experimenting with new approaches
• You see AI as a shortcut — not as a core part of how you work
• You immediately assume it is complicated and time-consuming

We are not filtering by years of experience. We are filtering by mindset and drive.
This role is best suited to someone genuinely passionate about coding and AI.

What we offer

• Unlimited paid access to Claude, Cursor, and other AI tools from day one to get the job done
• Mostly remote — come into the Riga office when it makes sense
• Health insurance after probation period
• A team that actively uses AI daily — you will not be the only one experimenting
• Real projects with real problems — no invented tasks, no busywork
• A fast-growing company building its AI capabilities now — room to grow with it

How to apply

No cover letter. No template. Just send your CV to info@aaprojekts.lv and include:

• education background — started or completed IT-related education is required
• language skills
• show us something you built, automated, or improved using AI in the last 3 months
• brief IT experience mention, if applicable

We care most about your way of thinking, your ability to learn, and your interest in building useful things with AI.

* All candidates will be required to complete a time-limited task using AI

* We will respond within one week to candidates selected to move forward.

PwC is a global network of more than 370,000 professionals in 149 countries that turns challenges into opportunities. We create innovative solutions in audit, consulting, tax and technology, combining knowledge from all over the world.

Join PwC’s pioneering data & AI team and help build the data foundations behind impactful AI solutions. We’re growing quickly due to a strong pipeline of client work, and we’re hiring across multiple seniority levels — from junior to senior Data Engineers and Data Scientists.

Across our projects, Python is the core skill we expect. Depending on your strengths, you may focus more on data engineering (pipelines, platforms, SQL) or data architecture (designing scalable data solutions). Many roles also include “full-solver” flexibility — contributing where needed, including automation, integration work, or enabling AI/GenAI use cases on modern platforms (including Microsoft technologies where relevant).

Key responsibilities:

• Data Pipeline Design & Development: Design, implement, and maintain scalable data pipelines and ETL/ELT processes, primarily using Python and Spark (PySpark), to ingest, transform, and deliver data from various sources into analytics and ML platforms.
• Data Modelling & Warehousing: Design and optimize data models (e.g. star/snowflake schemas), build and manage data warehouses and data lakes, and ensure data structures support reporting, analytics, and ML use cases.​
• Data Preparation for ML: Collaborate closely with data scientists and ML engineers to understand data requirements, implement robust preprocessing and feature engineering steps, and ensure datasets are clean, consistent, and suitable for machine learning models.
• Performance & Reliability: Optimize data processing jobs and SQL queries for performance and cost efficiency, monitor data pipelines in production, and ensure reliability, scalability, and adherence to SLAs.
• Client Collaboration: Work directly with clients across Western Europe and the USA to understand their data landscape and requirements, translate business needs into technical designs, and provide expert guidance on data architecture and best practices.
• Governance, Quality & Security: Implement data quality checks, validation frameworks, and governance standards; ensure data security, privacy, and compliance in line with PwC and client requirements.
• Learning & Development: Stay at the forefront of data engineering, big data, and cloud technologies, continuously improving existing solutions, tools, and processes.
• Mentorship: Support the growth of junior team members by sharing knowledge, reviewing code, and guiding them in data engineering best practices and project work.

Who We're Looking For:

• Programming Skills (Key Requirement)
  Strong programming skills in Python (e.g. pandas, PySpark, SQLAlchemy, airflow-like tools). Ability to write clean, maintainable, and testable code is essential. Experience with other programming languages is a plus.
• Demonstrated hands-on experience with building data pipelines, ideally using Spark (PySpark) or similar distributed processing frameworks.
• Designing and implementing ETL/ELT workflows.
• Working with large datasets and complex data transformations.
• Database Expertise: Proficiency in SQL databases (designing schemas, writing complex queries, optimization). 
• Cloud & Big Data (Nice to Have / Advantage): Experience with cloud data platforms (preferably Azure: Synapse, Databricks, Data Factory, Azure SQL, Data Lake) or similar services on AWS/GCP.
• Professional Background: At least 2 years of relevant professional experience in data engineering, BI engineering, or similar data-focused roles.
• Analytical Thinking: Strong analytical mindset with the ability to understand complex data landscapes, debug data issues, and design logical, efficient data flows.
• Language Skills: English at B2 level or higher.

Policy statements:
https://www.pwc.com/ua/uk/about/privacy.html

We are looking for an Email Compliance Manager to own all communication, ticket management, and compliance coordination with ESPs across a large client portfolio.

You will be responsible for writing, submitting, and managing all interactions with ESP support, compliance, abuse, and deliverability teams. You will act as the strategic communication layer between internal teams and ESPs, ensuring every issue is resolved efficiently and professionally.

You must understand how ESP compliance teams think, how deliverability systems operate, and how to frame communication to achieve optimal outcomes while protecting client accounts.

WHAT WE ARE LOOKING FOR

Must-have

• 3+ years in ESP-side, compliance, deliverability, or direct ESP communications roles
• Strong understanding of ESP compliance systems, abuse handling, and deliverability mechanics
• Exceptional written English (near-native or native level) — writing is your core tool
• Proven ability to manage 30+ clients across different niches simultaneously
• Strong risk identification and problem anticipation skills
• High attention to detail (errors in ESP communication have real consequences)
• Comfortable working flexible hours and across US time zones when required
• Able to operate across all niches without personal or moral restrictions

Nice to have

• Direct experience working inside an ESP (support, compliance, deliverability)
• Familiarity with major ESP internal processes and decision-making systems
• Experience coordinating cross-functional technical or compliance resolutions
• Background in email marketing or marketing operations

WHAT YOU WILL OWN

ESP & Compliance Ticket Management

• Own all ESP ticket submissions and lifecycle management across 30+ clients
• Track, prioritize, and manage all active tickets from open to resolution
• Ensure nothing is lost, delayed, or left without follow-up
• Maintain structured logs of all communications, statuses, and outcomes
• Prioritize tickets based on urgency, compliance risk, and business impact

ESP Communications & Written Strategy

• Write and send all communications to ESP support, compliance, and deliverability teams
• Handle responses to abuse complaints, compliance flags, warnings, and suspensions
• Adapt tone, framing, and strategy based on ESP, issue type, and client context
• Know when to escalate, push back, or concede to protect client accounts
• Ensure all communication is precise, professional, and strategically optimized

Risk & Compliance Management

• Identify deliverability and compliance risks before they escalate
• Understand downstream consequences of every ESP interaction
• Propose mitigation strategies to the Head of Project for high-risk situations
• Stay updated on ESP policy changes, compliance rules, and deliverability trends
• Anticipate issues before they become account-threatening problems

Internal Coordination

• Work closely with email marketers, project managers, and production teams
• Translate ESP requirements into clear internal action items
• Ensure required changes are implemented before responding back to ESPs
• Maintain clear stakeholder communication on all ticket statuses and outcomes
• Follow through until every issue is fully resolved

WHO FITS THIS ROLE

The ideal candidate has worked on the ESP side and understands exactly how compliance and support teams evaluate risk, requests, and sender behavior.

They are a strategic writer who understands that every word sent to an ESP affects outcomes. They can manage a large portfolio of clients without losing track of detail, risk, or urgency.

They are fast, precise, and highly detail-oriented. They think several steps ahead, identifying risks before they become incidents.

They are comfortable working across all niches and understand that this is a behind-the-scenes operational role, not a client-facing or visibility-driven position.

WHO WE ARE

We are a fast-growing operation managing email marketing and deliverability across 30+ clients in multiple niches. We handle all ESP communications and compliance processes on behalf of our clients entirely behind the scenes. The role acts as the final point of contact with email service providers (ESPs), where precision, strategy, and speed directly impact client deliverability and account safety.

This is a high-volume, high-stakes environment. A missed ticket or poorly framed response can result in account restrictions or permanent suspension.

You will report directly to the Head of Project and work closely with internal teams to ensure all ESP issues are resolved end-to-end.

Flexible availability is required. ESP compliance issues do not follow business hours.

About us

Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/

About the role

We are looking for a Head of User Acquisition to take full ownership of execution quality, operational processes, and performance delivery within the User Acquisition Department.

This is a hands-on leadership role, you will manage a team of 3–6 User Acquisition Managers across different seniority levels and will be fully accountable for the team’s KPIs, execution discipline, ROI, and results.

You are expected to build strong operational processes, maintain high execution quality, and actively participate in performance management. This role requires deep hands-on expertise - not theoretical leadership.

This is a high-impact, high-responsibility role. Results, efficiency, and ROI are the primary measures of success.

Key Responsibilities

• Team Leadership & Development
  Lead, mentor, and develop a team of User Acquisition Managers. Ensure continuous growth in knowledge, execution quality, and performance across the team.
• Hands-On Performance Management
  Stay deeply involved in daily operations. Be able to step into ad accounts at any moment to diagnose issues, optimize performance, launch campaigns, and demonstrate best practices.
• Budget Ownership at Scale
  Manage and oversee $1M+ monthly advertising budgets across all networks, ensuring disciplined spend allocation, controlled scaling, and performance stability.
• Facebook as a Core Channel
  Be exceptionally strong in Facebook Ads or Google Ads, taking full responsibility for Facebook Ads as the primary acquisition channel.
• Analytics, Insights & Data-Driven Decisions
  Work deeply with performance data and analytics to identify insights, inefficiencies, and growth opportunities. Collaborate closely with the Analytics team to stay continuously informed about funnel performance, attribution, cohort behavior, and overall acquisition efficiency.
• Process & Reporting Setup
  Build, document, and enforce clear UA processes, reporting standards, and performance review cadences. Ensure transparency and full control over daily, weekly, and monthly results.
• Creative Ideation Process
  Build and manage a structured process for sourcing, testing, and iterating creative ideas. Work closely with Creative Managers to continuously identify and scale top-performing creatives.
• Operational Excellence
  Ensure disciplined execution across account structure, testing frameworks, scaling logic, and performance monitoring.
• KPI Ownership
  Take full responsibility for team KPIs, including efficiency and ROI metrics. Results and outcomes are the primary measure of success.

Qualifications

• Senior User Acquisition professional with leadership experience.
• Proven hands-on management of $1M+ monthly advertising budgets.
• Deep, practical expertise in Facebook Ads or Google Ads, with ownership of Facebook Ads as the primary acquisition channel.
• Proven experience managing multiple paid acquisition sources beyond Facebook and Google is a strong plus.
• Strong analytical mindset with the ability to work deeply with data to extract insights.
• Experience collaborating closely with Analytics teams to guide decision-making.
• Focused on high-ROI, efficient scaling, not just spend growth.
• Comfortable working directly inside ad accounts, not only at the reporting level.
• Experienced in training, coaching, and developing UA teams.
• Structured, disciplined, and highly accountable.
• Able to operate effectively in a fast-paced, high-pressure environment.

• Clear, direct communicator focused on results.

   

Location

Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.

Benefits

Discover the perks of being part of our vibrant team! We offer:

• Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
• Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
• Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
• Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
• Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview?tab=t.0

Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!

Interview Process

After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:

• Recruiter Screening (40 minutes)
• Technical Interview (60 minutes)
• Final Interview (60 minutes)

Life at Ruby Labs

At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day.

This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen.

Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.

Kraken Leads a dynamic company with Ukrainian roots, providing comprehensive SEO solutions for iGaming products for over 6 years.

We are looking for an experienced and results-oriented Team Lead SEO who can take full responsibility for client SEO directions and team management: from developing strategy and financial models to scaling results and building a stable profitable business.

Requirements:

• Experience in building and managing an SEO team (full cycle: selection, adaptation, processes, motivation, KPI) with reaching the break-even point;
• Proven success in competitive niches (iGaming, Dating, Nutra, Betting and other high-risk) - top 3-5 facts for XXX queries;
• Experience working with JS projects (React, Vue, Angular): indexing, ranking, SSR (consultative);
• Experience in managing multi-regional projects (canonical, hreflang);
• Strong management skills: strategy building, role distribution, employee development, training for complex projects, conflict resolution;
• Business thinking: P&L, KPI, assessing team effectiveness in numbers;
• Deep understanding of SEO (technical, content, link building, analytics) and monitoring results with deadlines;
• Proficiency in analytical tools: GSC, GA4, Ahrefs, Semrush, Bing Webmaster Tools, etc. (strategic level);

• English - from B2 level.

   

Responsibilities:

• Development, coordination and implementation of SEO strategy for international client projects (Google, Bing, local search engines);
• Management of link building strategy taking into account regional specifics: anchor lists, donor control, work with different markets;
• Participation in team formation and scaling: hiring, adaptation, training for JS/multi-regional projects, motivation and KPIs;
• Ensuring the achievement of planned team results within the established deadlines for client projects: growth of organic traffic, positions, conversions;
• Ensuring regular communication of the team with related departments and client teams to achieve business goals;
• Planning, together with SEO specialists and the content department, content strategy for multi-regional sites: clustering, semantics, TOR for editors, quality control and localization;
• Working with analytics: Google Search Console, GA4, Ahrefs, Semrush, Bing Webmaster Tools, BI tools;
• Implementation and testing of AI tools for SEO automation.

Why it’s comfortable to work with us:

📚 Development without limits: Clear professional roadmap, personal budget for courses and trainings, annual skill upgrade your career grows together with the company.

🌍 Flexibility and balance: Start your working day anytime between 8:00 and 11:00, work remotely from anywhere, or drop by our Kyiv coworking space for networking and team vibes.

💚 We care about you: 17 paid vacation days + additional day-offs for holidays, 100% paid sick leaves, and a wellbeing budget for sports, healthcare, or your favorite hobby.

📄 Zero bureaucracy: We handle all legal and accounting matters you focus purely on performance and results.

💪 Energy and achievements: We run, do yoga, launch challenges, and celebrate both personal and team victories because success feels better together.

🎯 Smooth start and full support: Friendly onboarding with a buddy, ongoing feedback, transparent goals, and a clear understanding of success metrics.

💬 Open communication with leadership: Direct access to C-level, regular all-hands meetings, and transparency in decisions your voice is always heard.

💰 Transparent compensation: Your income grows with your results. We value fairness and reward performance.

🚀 Your journey to joining the team:

Resume review — we carefully evaluate your background and experience.

Interview with a recruiter — to align expectations and share details about the role.

Technical/manager interview — meet your future manager and discuss real tasks.

Paid test task — a chance to show your approach and skills in action.

Final interview with the CEO — friendly chat about vision, values, and growth.

Offer and onboarding — welcome to Kraken Leads, where your next chapter begins!

This role is ideal for an experienced Python engineer who is confident working with AI-driven workflows, building reliable backend services, and contributing to modern LLM-powered systems. You will focus on developing MCP-based integrations and backend APIs while collaborating with a senior-level engineering team.

Your responsibilities will include:

• Build and maintain Python-based MCP services and integrations.
• Develop backend APIs for LLM-powered products using FastAPI or FastMCP.
• Work on prompting, tool integration, reliability, and production readiness of AI workflows.
• Design, build, and maintain scalable and reliable backend systems.
• Collaborate with cross-functional teams to deliver high-quality technical solutions.
• Participate in improving system performance, stability, and maintainability.
• Expand into modern LLM infrastructure and evaluation practices as needed.

What we expect from you:

• English level B2 or higher for effective technical communication.
• Strong hands-on experience with Python.
• Solid experience with MCP and prompting concepts.
• Proven backend engineering experience with FastAPI or similar frameworks.
• Experience designing and maintaining APIs and backend services.
• Proficiency with Git and standard version control workflows.
• Strong problem-solving skills and ability to work independently.
• Experience working in distributed teams within the EU time zone.
   

Nice to Have:

• Exposure to Kubernetes.
• Understanding of embeddings and evaluation (evals) workflows.
• Familiarity with LLM inference concepts such as temperature, top_p, guardrails, and bias mitigation.
• Experience working with AI-driven or LLM-based systems.
• Experience with production-grade infrastructure and scalable services.

What we offer:

• Interesting projects and challenges that accelerate professional and personal growth.
• Long-term project.
• 15 paid vacation days per year.
• 5 paid sick leave days per year.
• Flexible, results-focused schedule; hybrid work or remote (office with city view + work from home).
• Comfortable, stylish office in Kyiv with generator/battery backup.
• Equal salary, medical insurance, trial period.
• Team-building events: parties, online activities, picnics, and more.
• Opportunity to work in a Top-employee company (DOU 2025).

We are seeking a passionate and skilled Full-Stack JavaScript Developer with at least 5 years of experience to join our team. The ideal candidate will have strong expertise in React, Node.js, PostgreSQL, and AWS to build scalable, efficient, and user-friendly applications. 

Requirements 

• Minimum of 5 years of professional experience as a Full-Stack JavaScript Developer or similar role 
• Strong proficiency in React and Node.js 
• Hands-on experience with PostgreSQL or other relational databases 
• Knowledge of AWS services (EC2, S3, Lambda, RDS, etc.) 
• Understanding of RESTful APIs and web services 
• Familiarity with version control systems like Git 
• Good problem-solving skills and attention to detail 
• Excellent communication skills and ability to work independently or in a team 
   

Nice-to-haves 

• Experience with TypeScript 
• Knowledge of CI/CD pipelines 
• Familiarity with Docker and containerization 
• Previous experience working in agile development environments 

Core Responsibilities 

• Develop, test, and maintain new and existing web applications using React and Node.js 
• Design and optimize database schemas using PostgreSQL 
• Integrate front-end components with server-side logic and APIs 
• Deploy, manage, and scale applications on AWS cloud infrastructure 
• Collaborate with cross-functional teams to define technical specifications and deliver high-quality solutions 
• Ensure code quality through testing and code reviews 
• Stay updated with emerging technologies and industry best practices 
   

What we offer   

• Continuous learning and career growth opportunities 
• Professional training and English/Spanish language classes   
• Comprehensive medical insurance 
• Mental health support 
• Specialized benefits program with compensation for fitness activities, hobbies, pet care, and more 
• Flexible working hours 
• Inclusive and supportive culture 

About Us
 

We are a U.S.-based fintech platform founded in 2021, focused on modernizing and digitizing the lending and payments ecosystem.
 

We operate a multi-lender lending platform and are expanding into payments and financial infrastructure. Our roadmap includes complex underwriting workflows, multi-party application flows, role-based systems, API-driven integrations, and money movement infrastructure.
 

We’re looking for a Senior Full Stack Developer who thrives in backend-heavy fintech systems and can build scalable, secure, API-driven architecture while supporting front-end development as needed.
 

If you enjoy solving real-world financial logic problems, integrating complex third-party systems, and building structured, high-impact platforms — this role is for you.
 

What You’ll Be Doing
 

Backend (Primary Focus)

• Designing and building scalable backend services using PHP (Laravel)
• Developing and maintaining RESTful APIs for internal and external integrations
• Implementing complex business logic related to:
  • Loan origination workflows
  • Offer presentation and decisioning logic
  • Funding and settlement flows
  • Payments and money movement
  • Role-based permissions and application assignment
• Integrating with third-party APIs including lenders, payment processors, and financial systems, with a strong emphasis on loan origination platforms, core banking systems, and complex partner integrations
• Designing clean database architecture in MySQL
• Writing optimized queries and ensuring data integrity
• Implementing secure authentication & authorization (JWT, OAuth, role-based access)
• Handling asynchronous processes, webhooks, queues, and background jobs
• Writing unit and integration tests for backend services
• Refactoring legacy code for scalability and maintainability
• Participating in architectural discussions and technical planning
   

Frontend (Secondary Support)

• Supporting development in React.js
• Building and maintaining API-connected UI components
• Working with existing design systems and UI structure
• Ensuring proper state management and API consumption
• Debugging cross-stack issues (frontend ↔ backend)
   

System & Infrastructure Responsibilities

• Working within AWS infrastructure (EC2, RDS, S3, IAM, etc.)
• Understanding deployment workflows and environment separation (dev / staging / production)
• Collaborating with DevOps on CI/CD pipelines
• Ensuring performance, security, and monitoring standards are met
• Supporting system scalability and uptime
   

Fintech-Specific Responsibilities

• Building and maintaining systems that handle:
  • Sensitive PII (SSNs, EINs, banking data)
  • Loan calculations and APR logic
  • Funding disbursement and reconciliation
  • ACH/card payment processing logic
  • Status-driven workflows (multi-stage application lifecycle)
• Working with or building loan origination systems (LOS) and multi-lender workflows
• Implementing and optimizing underwriting logic, decisioning flows, and application state management
• Supporting document parsing, data extraction, and AI-assisted workflows within financial applications
• Designing systems that support dynamic application flows, conditional logic, and configurable lending programs
• Ensuring compliance-conscious development (data protection, auditability, traceability)
• Supporting webhook-driven external lender responses and state updates
   

What We Expect

• 5+ years of experience in backend or full stack development
• Strong experience with PHP (Laravel framework required)
• Experience with React.js
• Strong experience with MySQL database design and optimization
• Experience working within AWS environments
• Strong experience integrating external APIs (REST required), especially complex multi-party or financial integrations
• Experience working in fintech, lending, payments, or financial platforms (strongly preferred)
• Experience working with loan origination systems, underwriting workflows, or similar financial platforms
• Familiarity with AI-assisted workflows, document parsing, or structured data extraction systems is a strong plus
• Strong understanding of:
  • Secure coding practices
  • Authentication & authorization models
  • API-driven architecture
  • Webhooks & async processing
• Ability to debug complex cross-system issues
• Experience working in structured Jira-based sprint environments
• Clean, maintainable coding standards
   

Nice to Have

• Experience with financial calculations (APR, amortization schedules, payment schedules)
• Experience with queue systems (Redis, SQS, etc.)
• Experience building role/permission matrices
• Experience working with high-volume transactional systems
• Experience improving legacy systems in production environments
   

What Success Looks Like in This Role

• You take ownership of backend features from specification to production
• You anticipate edge cases in financial logic
• You build integrations that are resilient and well-structured
• You reduce technical debt, not increase it
• You proactively identify architectural risks before they become issues
• You communicate clearly with Product, BA, and DevOps teams
   

What We Offer

• Fully remote work
• Transparent and competitive compensation
• High-impact role in a fast-growing fintech platform
• Direct involvement in architectural decisions
• A team that values ownership, precision, and execution
• 20 paid vacation/sick days per year
   

Working Hours

This role is aligned with U.S. Eastern Time to support live production systems and real-time platform operations.
Standard schedule: Apx 10am-7pm / Extended support shift 7pm-2am
Provides strong overlap with U.S.-based operations, product, and support workflows

FFW Agency is looking for a Strong-Mid/Senior PHP developer to join our team.

Required skills

- 3+ years of hands-on development experience

- Solid knowledge of PHP (Drupal, Laravel, Symfony)

- Commercial project experience with Laravel

- Experience with SQL and noSQL databases

- OOP

- Design patterns

- Hands-on experience in Web Services development

- Solid understanding of Git and CI

- Upper-Intermediate level of English or above

- Ability to both collaborate with team members and to work independently.

As a plus

- TypeScript knowledge

- AWS knowledge

- Python experience

- Knowledge of JavaScript(Vue.js or React)

- HTML5, CSS3 and SASS

We offer

- Competitive salary

- Support for conferences, courses and certifications

- Health insurance

- English language school

- Paid holidays (4 weeks) and sick leave

About FFW Agency (Dnipro)

We are a global team of inspired people collaborating across 11 countries, together with the aligned purpose of creating powerful digital experiences for some of the world’s most notable brands. We are passionate about empowering our clients to harness the full opportunity of digital to create best-in-class experiences for our clients and those they serve. We judge our success by our collective hard work's impact on our clients’ businesses.

Our client is a leading global Financial market data provider who runs a change program aiming to migrate a set of legacy data connectors to a new strategic platform. The main driver is to deliver high-quality software that connects Financial Markets across the globe in a real-time, high frequency, and low-latency data management chain. The projects are technically challenging in an environment that is very engaging. Projects will utilize a multitude of different languages and skillsets with a focus on C++ and scripting languages.

We are looking for a C++ software engineer/developer with experience in implementation backend systems and services running under Linux, Cloud, ideally, with capabilities to deliver projects independently and coordinate work with BA, QA, Operational, and cross-functional application teams.

• Responsibilities:

  • Develop high-quality software, design, and functional documentation
  • Provide estimates for specific software feature implementation
  • Identify, prioritize, and execute tasks in the software development life cycle
  • Build unit tests for your code
  • Automate tasks through appropriate tools and scripting
  • Perform validation and verification testing
  • Collaborate with internal teams and vendors to fix and improve products
  • Ensure software is up-to-date with the latest technologies and standards

• Mandatory Skills Description:

  • 3+ years of full life-cycle software development experience
  • 3+ years of object-oriented development, in particular, C++
  • Experience developing under Linux
  • Ability to collaborate in a team-focused environment
  • Excellent analytical skills and a real passion for solving problems
  • English at the level of Upper-Intermediate (spoken)
  • Experience with Docker, AWS

Our team is working for one of the world's largest providers of products and services for the ever-evolving needs of the energy industry. Oil and gas domain, well logging.
We are working with Azure cloud, GIT, Kubernetes, using C#, C++ last standards (C++ 17, potentially 20). Using SCRUM framework.

• Responsibilities:

  • Review and analyze tasks in Product Backlog Items provided by Product owner
  • Participation in grooming sessions and proactive task requirements and acceptance criteria clarification
  • Work as part of a team using Azure environment
  • Work with the team on development and resolving issues
  • Implement software changes from Product Backlog Items and technical requirements
  • Work with the QA team to determine if the application fit Product Backlog Items and technical requirements
  • Identify and fix bugs, find solutions to the problems
  • Maintain code quality, organization, and automatization
  • Maintain the developed software efficiently through a solid knowledge of software lifecycle

• Mandatory Skills Description:

  • 4+years of experience and strong knowledge in C/C++
  • Some experience and .NET/C# knowledge
  • Environment and tools: Docker, GIT, CMake, WCF
  • SOA, Microservices, Solid principles, DDD
  • Experience with databases (SQL)
  • Problem-solving, proactive in task clarification, analytical thinking
  • SCRUM framework knowledge and understanding of SDLC
  • English level: Intermediate+
  • Ability to work effectively in a team and with international clients

• Nice-to-Have Skills Description:

  • gRPC
  • Kubernetes
  • Multithreading knowledge
  • PowerShell scripting
  • Azure cloud
  • Oil and Gas domain knowledge

Luxoft, a DXC Technology Company, is a digital transformation services and software engineering firm providing bespoke IT solutions that drive business change. In financial services we deliver complex projects with highly skilled engineering talents. If you would like to help us build engineering solutions that make difference for our global financial industry clients, this may be your opportunity. We are looking for C# engineers with experience in scalable system designs, to join the team developing a firm-wide Risk platform for our client US multinational investment bank. Working in this project will let you:
- learn more about financial markets, products and risks.
- verify and grow your skills in global diverse team.

• Responsibilities:

  - Design and develop software components for Equity Risk Platform built on C# and C++
  - Coordinate efforts with local developers and wider global team.
  - Do scalability and performance optimizations.
  - Manage the software development life cycle, from planning and prioritizing to testing and release.
  - Review, test and debug team members' code
  - Document development phases
  - Identify and analyze user requirements.
  - Selection of the most suitable solutions for creating a product
  - Compliance with deadlines

• Mandatory Skills Description:

  - 4+ years of hands-on experience using .Net technology stack and providing high-quality solutions.
  - Solid core .Net, multithreading, concurrency, design patterns.
  - Experience with SQL
  - Ability to apply modern security protocols and best practices.
  - Good delegation and time management skills
  - Problem-solving abilities
  - The ability to prove their point of view to the customer.
  - Excellent communication skills

• Nice-to-Have Skills Description:

  - C++ knowledge
  - Investment Banking experience

Join the Data Engineering team to contribute to the ongoing maintenance and improvement of an internal LLM-powered assistant that uses hosted LLM APIs and internal knowledge sources, with a focus on reliability, retrieval quality, and operational excellence.

• Responsibilities:

  • Maintain and enhance ingestion/enrichment pipelines for internal content (parsing/extraction, normalization, metadata enrichment, deduplication, and quality monitoring)
  • Improve indexing and retrieval performance and quality (chunking/segmentation refinements, embedding/index update workflows, metadata filtering, caching) and support hybrid retrieval capabilities (vector + keyword/BM25 + metadata)
  • Implement and maintain access-aware retrieval by propagating/enforcing document permissions through indexing and query-time filters, including audit logs and validation tests
  • Improve source attribution so responses reliably point to the correct documents and sections in a consistent format.
  • Extend and harden tool/workflow execution and automations (scheduled/trigger-based), including retries, timeouts, idempotency, concurrency controls, and run history
  • Develop and maintain evaluation and regression testing (golden sets, automated scoring) and support structured comparisons across LLM providers/models as required
  • Operate the platform in production: observability (logs/metrics/tracing), alerting, incident support, performance tuning, and cost controls, plus runbooks and handover documentation

• Mandatory Skills Description:

  8+ years of hands-on experience in Data Science and 5+ years in Machine Learning, with a proven track record, demonstrated through a robust portfolio of projects.
  Strong programming skills in languages such as Python and familiarity building ETL pipelines.
  Expertise in SQL and experience with both relational (preferably Postgres) and NoSQL databases (Open Search or Elastic Search)
  Familiarity with cloud platforms (e.g., AWS) and their services.
  Experience with version control systems (e.g., Git) and CI/CD pipelines.
  Ability to build scalable infrastructure to embed and search very large number of documents.
  Ability to move fast in an environment where things are sometimes loosely defined and may have competing priorities or deadlines.
  Expertise in ML inference optimizations
  Solid experience with Hybrid RAG, chunking/segmentation refinements, embedding/index update workflows, metadata filtering, caching, etc.
  Knowledge of network optimization for distributed ML training and inference.
  Understanding of distributed training patterns and checkpointing strategies.
  Strong English skills (B2 and higher)
  Strong verbal and written communication skills.
  Ability to work independently and collaborate in a group.

• Nice-to-Have Skills Description:

  Agile certification
  AWS/Oracle/Microsoft attestations and certifications
  Domain knowledge - Trading and Capital Markets