Jobs

Our client is a global integrated Shipping Services company, recognized for its independent and innovative approach. As a niche carrier, they operate select trades where they provide superior service, ensuring stability, reliability, and flexibility for their customers worldwide. By maintaining strategic partnerships with major carriers and offering alternative line structures, they stand out in a market dominated by alliances.
We are seeking a Senior Java Full Stack Engineer to join our dynamic development team. This is a hands-on role involving the full development cycle—from design and architecture to development and deployment—with a focus on innovative applications. You will work in an XP environment, collaborating remotely with pairing practices to deliver high-quality solutions.

Responsibilities:

• Full stack development of innovative applications using Java, Spring, and React.
• Own the entire development lifecycle, including design, architecture, development, and DevOps.
• Work in an XP environment with remote pairing.
• Develop reactive UIs and modern front-end experiences.
• Implement and maintain microservices-based architectures.
• Contribute to TDD/BDD development using frameworks such as JUnit, Jasmine, Mockito, Protractor/Selenium.
• Deploy and manage cloud/hybrid solutions and containerized applications (Kubernetes, Cloud Foundry).
• Apply design principles like service discovery, circuit breakers, and scalable microservices.
• Switch effectively between different technologies and tasks in a fast-paced environment.

Requirements:

• BS degree in Computer Science or equivalent experience.
• 5–6+ years of full stack development experience.
• 5–6+ years of Java and Spring development; experience with Kotlin is an advantage.
• 2+ years of front-end development with React (or other modern JS frameworks).
• Experience with functional programming and Java Streams.
• 2+ years of experience in TDD/BDD using JUnit, Jasmine, Mockito, Protractor/Selenium.
• 2+ years of experience with microservices, Spring Boot/Cloud, and DevOps practices including Jenkins.
• Experience designing, developing, and deploying cloud/hybrid-based solutions.
• Experience with container-based environments (Kubernetes, Cloud Foundry).
• Familiarity with modern design patterns and architecture principles: microservices, service discovery, circuit breaker.
• Strong problem-solving skills, critical thinking, and ability to assess a broad range of information solutions.
• Excellent English communication skills (verbal and written).

Nice-to-Have:

• Experience in Kotlin development.
• Experience in developing reactive UIs (Reactive JS).

Launch Labs is an IT company focused on web and application development. We help clients turn product ideas into working solutions and support them throughout the development process. Our team has worked with well-known brands such as Nike and Rapid Replay(acquired by NBC).

We're seeking a Sr. iOS Swift Engineer for a leading performance platform for athletes, that provides individualized training programs, biomechanics analysis, and cutting-edge performance insights.

What You’ll Do

• Develop and maintain high-quality iOS applications using Swift
• Collaborate closely with our mobile, product, design, and backend teams to deliver new features
• Build smooth, responsive, and intuitive user experiences
• Integrate APIs and work with video/content-heavy features

• Participate in code reviews and contribute to engineering best practices

   

What We’re Looking For

• 5+ years of experience in iOS development
• Strong proficiency in Swift , UIKit, and SwiftUI
• Experience with GraphQL and mobile architecture patterns )
• Solid understanding of app performance optimization and debugging
• Strong problem-solving skills and attention to detail
• Ability to work independently in a remote, fast-paced environment
   

Nice to Have

• Experience in sports, fitness, or performance-related products
• Knowledge of real-time data handling or analytics
• Experience working with media (video streaming, playback, or processing) is a strong plus

Benefits:

• 4 weeks of paid vacation per year 
• Flexible working hours 
• Medical insurance for your peace of mind
• Professional development support - Launch Labs covers courses, training, and skill growth
• An exciting, collaborative, and innovative team environment
• Fully remote work, with freedom and flexibility

We are looking for a Data Analyst to join a global product team working on a large-scale mobile marketing platform.
This role focuses on performance analysis, experimentation, and data-driven decision making in a high-load AdTech environment.

You will help identify where the system is losing value, design meaningful metrics, and provide insights that directly impact product and data science decisions.

Responsibilities

Analysis & Insights

• Analyze campaign performance and system behavior
• Identify inefficiencies in pricing, pacing, and traffic selection
• Break down complex performance data into clear, actionable insights

Experimentation

• Define and calculate key metrics (including intermediate metrics)
• Analyze A/B tests and interpret results
• Ensure fair experiment conditions (budget, traffic, etc.)

Data Exploration

• Investigate data quality issues and anomalies
• Build datasets to support modeling and experimentation
• Explore new signals, features, and opportunities

Collaboration

• Work closely with Data Science, ML Engineers, and Product teams
• Translate analytical findings into business recommendations

Current Focus Areas

• Pricing & Budget Scalability — scaling budgets while maintaining performance
• User Selection Optimization — improving conversion rates (CVR) through targeting
• Exploration Efficiency — reducing wasted budget during exploration
• Incrementality Measurement — measuring true lift vs attributed performance
• Fraud Detection & Filtering — improving traffic quality

Requirements

• Bachelor’s or Master’s degree in Computer Science, Mathematics, Statistics, Economics, or similar
• ~2 years of experience in a data-related role
• Strong knowledge of statistics, A/B testing, and data analysis
• Experience working with large datasets and performance metrics
• Ability to explain complex data in a clear and structured way
• Strong problem-solving skills and proactive mindset

Nice to Have

• Experience in AdTech / marketing / auctions
• Understanding of incrementality and attribution models
• Internship or experience in high-scale data environments

What Success Looks Like

• You clearly identify where the system is underperforming
• Your analysis drives experiments and product decisions
• You build reliable metrics, dashboards, and insights that improve system performance

About the Role

This is a great opportunity for a Data Analyst who wants to work on real-time, high-scale systems, collaborate with Data Science teams, and directly influence product performance through data.

Job Description

5+ years of experience in applied machine learning or data science roles
Strong proficiency in Python
Experience developing, training, and optimizing models with a focus on timeseries data analysis
Solid understanding of data preprocessing, feature engineering, and model evaluation methods
Familiarity with MLOps workflows and collaboration with platform engineers for model deployment
Experience with any of the following: Amazon Sagemaker, MLFlow, Vertex AI
Strong problem-solving, communication, and collaboration skills
Strong understanding of data structures, algorithms, and software engineering principles.
Hands-on experience with cloud platform (AWS) is a plus

Job Responsibilities

Design and develop machine learning models. ML Engineer will handle model selection, implementation, training, testing, and optimization, ensuring models meet requirements and achieve learning standards.
Model Lifecycle Management.
Onboard new ML models onto the existing platform with standardized training automation and interfaces.
• Collaborate with DevOps and data engineers to deliver end-to-end solutions:
• Manage and optimize big data and training data pipelines for cost and reliability.
• Oversee, maintain and enhance CI/CD operations for ML services"

Department/Project Description

We are seeking a highly skilled and motivated Sr. ML Engineer to join our team and contribute to the development for a leading telecommunications provider.

Skill Category

AI/ML

Keyskills - Must Have

• Machine Learning
• Python

Keyskills - Nice to Have

• Amazon SageMaker
• AWS

We are building an internal Apps Factory — a portfolio of subscription-based mobile apps (utilities, edtech, productivity, lifestyle) and a scalable growth engine powered by Meta, Google and other paid channels.
 

We are looking for a Senior UA who will own this engine end-to-end:

strategy → funnels → channels → automation → team
 

Responsibilities

• Build and execute UA strategy across Meta, Google and other paid channels.
• Own and scale Web2Web, Web2App and in-app funnels.
• Work closely with Product, Monetization, Creative and Analytics teams.
• Set up and improve attribution & tracking (AppsFlyer / Adjust, CAPI, server-side events, UTMs).
• Analyze CAC, LTV, ARPU, ROAS, retention and cohorts.
• Build automation and scalable UA processes.
• Lead and mentor UA specialists.
   

Requirements

• 3+ years of experience in User Acquisition / Performance Marketing.
• Required: experience working with mobile subscription apps (B2C). This is critical for this role.
• Strong hands-on experience with Meta and Google Ads.
• Experience scaling Web2Web, Web2App or app funnels.
• Experience with attribution tools (AppsFlyer, Adjust or similar).
• Strong understanding of CAC, LTV, payback and unit economics.
• English B2+.

We offer

• Salary above market level.
• Learning opportunities and employee benefits.
• Office in Prague or Warsaw, or remote work.
• New MacBook.
• Friendly and professional atmosphere.

We are looking for a Freelance Software Engineer Automate SEO for a full time, long-term project.

Requred skills:
Engineering & Automation
- Strong programming skills (TypeScript/JavaScript, Python, or similar).
- Experience building APIs, automation pipelines, and backend services.
- Familiarity with web crawling, scraping, or data extraction techniques.
SEO & Web Fundamentals
- Deep understanding of technical SEO:
- Crawling and indexing
- Structured data (schema.org)
- Metadata, canonicalization
- Sitemaps and robots.txt
Experience with tools like:
- Google Search Console
- Google Analytics
- Screaming Frog SEO Spider
Web Performance
- Knowledge of Core Web Vitals and performance optimization techniques.
- Familiarity with rendering strategies (SSR, CSR, edge rendering).
Cloud & DevOps
- Experience with cloud platforms (Azure, AWS, or GCP).
- Familiarity with CI/CD, monitoring, and logging tools.
Nice to Have
- Experience building SEO auditing or recommendation engines.
- Familiarity with headless architectures or large multi-site platforms.
- Experience with data pipelines or integrating ML/AI for insights generation.

• Project Description:

  Our Client is one of the leading manufactures of dental and oral health products. As part of Company strategic evolution, we participate in development of a new cloud platform which will combine high quality of current intellectual property Company has, with power of Cloud technologies. As part of team you will have unique chance to increase quality of dental services all over the world and work with professionals from all over the world on high loaded demanded system.

   

• Responsibilities:

  - Development of company-wide UI component library
  - Participation in the code review process
  - Collaborative work in an Agile environment together with the engineering team and product owners

   

• Mandatory Skills Description:

  - Total years in IT: 5+ years
  - Flutter (4+ of commercial experience with Flutter). In-depth Flutter framework knowledge
  - Experience in building/publishing software libraries for use by other parties
  - Dart
  - Languages: English at least Upper-Intermediate

   

• Nice-to-Have Skills Description:

  - Experience with the development of web applications
  - Bitbucket
  - Jira/Xray
  - Google Cloud Platform CI/CD
  - Scrum framework

We're seeking a Software Java Engineer with 5+ years of experience to help build and scale the backend services that power our content discovery, licensing, and delivery platforms across all of our content libraries. You'll join a team that's passionate about clean architecture, performance, and solving complex challenges at scale. If you thrive in a collaborative environment and love building robust APIs, data-driven systems, and data modeling we'd love to hear from you.

What You'll Do:

• Design, implement, and maintain backend services using Java, Spring Boot, and the broader Spring ecosystem.
• Build and evolve RESTful APIs that power content metadata, search, recommendation, and licensing workflows.
• Work with Kafka to build event-driven and real-time processing systems.
• Use SQL and work with relational databases to support structured content metadata.
• Partner with data and analytics teams to model data in data warehouses, supporting reporting and analytics use cases.
• Build and maintain DBT models to transform raw data into clean, usable datasets.
• Leverage the AWS ecosystem for service deployment, data storage, and pipeline orchestration.
• Contribute to technical discussions, system design, and code reviews.

Requirements:

• 5+ years of professional backend development experience.
• Strong proficiency in Java, with experience using Spring Boot and Spring Framework.
• Experience designing and consuming REST APIs.
• Familiarity with Kafka or other message streaming platforms.
• Solid understanding of relational databases and writing optimized SQL.
• Comfortable working with GraphQL.
• Exposure to Python.
• A collaborative mindset with strong communication skills.
• A passion for clean code, scalable systems, and continuous learning.

Nice-to-Have:

• Practical experience working with data warehouses and DBT for data transformation and modeling.
• Hands-on experience working with the AWS ecosystem (especially Aurora/Dynamo DB).
• Experience working with Node.js and/or Typescript.
• Knowledge of containerization and orchestration (Docker, Kubernetes).
• Experience with Databricks/Snowflake.
• Background in building systems for search, metadata enrichment, or digital asset management.

We offer*:

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

*not applicable for freelancers

We are looking for Senior DevOps contractor with AWS\Terraform\Kubernetes experience for our Fintech client who will be able to own projects and help other team members growth

Zapalean is a DevOps-as-a-Service and data engineering agency that helps startups and growing businesses build scalable, secure, and automated infrastructure. We specialize in cloud-native solutions, CI/CD pipelines, infrastructure as code, and system reliability engineering. Our mission is to accelerate product delivery and ensure operational excellence through modern DevOps practices and data-driven insights.

Responsibilities

• Automate AWS resources and infrastructure provisioning
• Develop CI/CD pipelines
• Maintain infrastructures and environments of all types from dev to production
• Maintain Kubernetes clusters
• Security monitoring and administration

Requirements

• 7+ years of working experience in a DevOps role with AWS infrastructures
• Experience with Docker containers, Kubernetes, and Infrastructure as code Terraform
• CI experience (Jenkins, GitHub Actions, etc.)
• Experience with version control systems (Git or similar)
• Scripting skills with either Bash, Python
• Configuration Management experience (Ansible, etc.)
• Good Linux OS knowledge
• Network troubleshooting and configuration skills (DNS, HTTP, SSL, TCP/IP, etc.)
• Understanding of SDLC
• Good written and verbal communication skills in English as you’ll be working with external teams

Job Types: Full-time contractor

We are looking for a strong Full-Stack .NET + React Engineer with knowledge in AI LLM integrations to help expand and improve an existing AI CFO product. The MVP is already built and in use. This role is focused on building new features, improving AI Agent performance, and developing new Agents.

You will work directly on an active product and help us:

• Design and implement new features on top of an existing system
• Build advanced file export and reporting functionality (PDF, Excel, structured reports)
• Improve accuracy, consistency, and performance of LLM outputs
• Maintain and optimize generating charts and graphs using LLMs
• Create evaluation pipelines to measure and optimize model performance
• Implement validation layers and deterministic post-processing

Core Requirements

Full-Stack Engineering

• React (or similar frontend framework) experience
• .NET Backend development experience
• Working with AWS (or similar cloud environments)
• Knowledge with relative and document databases 

AI / LLM Engineering

• Proven experience integrating LLMs into real applications
• Experience with MCP and understanding how it works
• Structured output generation (JSON, reports, analytics)
• Prompt engineering and workflow optimization
• Building evaluation frameworks and test suites for AI systems
• Experience with frontier LLM models
• Handling retries, validation, guardrails, and fallback logic
• Optimizing cost, latency, and accuracy trade-offs
• Use AI-assisted coding tools (Claude Code) to ship faster

Strong Plus

• Financial analytics or accounting-related software experience
• Familiarity with QuickBooks or similar financial systems

Engagement Model

• Part-time contract (~120 hours per month)
• Fully remote
• Flexible schedule
• Long-term collaboration (not a short gig)
• Complete freedom in choosing technologies and architectural solutions

This is perfect for an experienced engineer who prefers flexible contract work and enjoys building practical AI systems.

Shortlisted candidates will receive a test task. Detailed project information will be shared after signing an NDA.

Our Client is one of the leading manufactures of dental and oral health products. As part of Company strategic evolution, we participate in development of a new cloud platform which will combine high quality of current intellectual property Company has, with power of Cloud technologies. As part of team you will have unique chance to increase quality of dental services all over the world and work with professionals from all over the world on high loaded demanded system.

• Responsibilities:

  - Development of company-wide UI component library
  - Participation in the code review process
  - Collaborative work in an Agile environment together with the engineering team and product owners

• Mandatory Skills Description:

  - Total years in IT: 5+ years
  - Flutter (4+ of commercial experience with Flutter). In-depth Flutter framework knowledge
  - Experience in building/publishing software libraries for use by other parties
  - Dart
  - Languages: English at least Upper-Intermediate, preferably Advanced

• Nice-to-Have Skills Description:

  - Experience with the development of web applications
  - Bitbucket
  - Jira/Xray
  - Google Cloud Platform CI/CD
  - Scrum framework

We have built a global connection platform that’s been thriving since 2019: today it brings together 600K MAU and 25K DAU, with around 7K new registrations every day. People across the US, Canada, UK, Europe, and the Middle East choose us daily to make real connections that matter.

Our clear ambition is to outperform competitors and become Top-1 in our category, and we are moving fast to make it happen. We are building the future of human connection through:

• AI-powered matching that actually works

• Scalable revenue streams, exploring streaming, new monetization models, and acquisition channels that truly convert

About your role: This role is for a Senior Android Engineer who wants to work with real scale, meaningful technical complexity, and visible product impact. You’ll build a mobile product used by 1M+ users across Tier-1 markets, with full technical ownership over features and architectural decisions. You’ll join a mature Android team with strong engineering standards, advanced code review, a well-established CI/CD setup, and a codebase evolving toward Kotlin Multiplatform.

In this role, you will

• Own and deliver Android features end to end, from decomposition and technical design to implementation and release
• Continuously improve the product through regular technical enhancements and refactoring
• Collaborate closely with other Android engineers, backend developers, and product teams
• Participate in advanced code reviews and contribute to shared engineering standards
• Work within a well-established CI/CD ecosystem with testing, code quality checks, and conventions
• Prepare and adapt the project architecture for future KMP integration

It’s all about you

• 4+ years of commercial experience in Android development
• Strong understanding and practical application of SOLID principles
• Production experience with Kotlin and KSP
• Experience working with Clean Architecture
• Hands-on experience with modularized Android projects
• Experience with MVI and the ability to design solutions based on product requirements
• Strong knowledge of MVVM
• Practical experience with Jetpack Compose and understanding of the composition process
• Confident use of Kotlin Coroutines
• Experience with Koin for dependency injection
• Skills in application profiling and performance optimization
• Experience working with Google Billing services

Will be a plus

• Experience or interest in Kotlin Multiplatform
• Experience with CI/CD pipelines and optimization processes

What we offer

Care and support: 

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

Comfortable working environment:

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

Investment in your future:

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

Hiring process

• Intro call with recruiter
• Technical Interview
• Final Interview
• Reference check
• Offer

(3 month Project, with potential ongoing advisory support)

We are looking for a DevSecOps Engineer with 3+ years of experience to help audit, strengthen, and improve the security posture of a small but growing SaaS platform serving nonprofit and corporate clients.

OVERLAP 14:00–16:00 Mountain Time (MT)

This role is security-first, with DevOps responsibilities as a secondary layer. The main goal is to assess the current infrastructure, identify security and compliance gaps, and implement a practical roadmap to improve the platform’s overall resilience, compliance readiness, and long-term sustainability.

Project scope:

— Initial security and infrastructure audit

— Identify risks, vulnerabilities, and operational gaps

— Build and prioritize a remediation roadmap

— Implement key improvements over a 2–3 month engagement

— Potential for ongoing periodic security reviews and advisory support afterward

Current stack / environment:

— Git

— GitHub Actions

— Docker

— AWS

— Render

What you will do:

— Audit the current cloud and application setup from a security and DevSecOps perspective

— Review infrastructure, deployment processes, DNS configuration, access controls, and backup/disaster recovery practices

— Identify gaps related to SOC 2 readiness and help prepare for stronger enterprise security expectations

— Assess security controls around CI/CD, secrets management, container images, user access, and production environments

— Review existing vulnerability scanning practices and recommend improvements, including dynamic scanning where needed

— Help define and implement practical controls such as firewalling, hardening, monitoring, least-privilege access, and security hygiene improvements

— Investigate risks related to DNS, exposed services, stale records, misconfigurations, and other overlooked infrastructure issues

— Support the team in creating a sustainable, right-sized security approach for a small organization without overengineering

— Translate findings into an actionable roadmap with clear priorities, balancing risk, cost, and implementation effort

— Help improve confidence in responding to enterprise security questionnaires from large corporate clients

What we are looking for:

— 3+ years of hands-on experience in DevSecOps, DevOps with a strong security focus, or cloud/infrastructure security

— Strong experience with AWS and cloud security best practices

— Experience with GitHub Actions, CI/CD security, Docker, and container/image scanning

— Experience reviewing and securing hosted platforms, including PaaS environments such as Render or similar

— Solid understanding of IAM/access control, secrets management, DNS security, backups, disaster recovery, and infrastructure hardening

— Experience identifying and remediating security gaps in small or mid-sized SaaS environments

— Familiarity with SOC 2 controls and general compliance-oriented security practices

— Ability to recommend pragmatic, cost-conscious solutions for a small team

— Strong communication skills and ability to explain risks, tradeoffs, and priorities clearly to non-security stakeholders

— English level: B2 minimum

You will play a key role in maintaining and optimizing the operational IT infrastructure that supports our global sales and commercial operations. This includes ownership of core sales platforms (CRM, analytics, enablement tools), ensuring system uptime, data integrity, and ongoing tool improvements.

This is a great opportunity for a detail-oriented, tech-savvy professional who enjoys improving systems, solving operational challenges, and supporting high-performing commercial teams. 

Main Responsibilities:

• Support and maintain the health and availability of key sales and operational tools (e.g., CRM, reporting dashboards, automation platforms)
• Ensure stability and performance of the operational IT infrastructure related to sales and revenue operations
• Collaborate with internal stakeholders to gather requirements and configure tools accordingly
• Monitor system performance, data integrity, and proactively resolve technical issues
• Support onboarding and training of users across teams; provide ongoing tool support
• Evaluate and implement new tools and integrations to improve sales productivity
• Maintain documentation and provide internal support for tool-related processes
• Act as a liaison between Sales, IT, and Data teams on technical needs and tool optimization

Expected Results:

• High availability and stability of operational IT systems and tools
• Fast and reliable support for users across global teams
• Reduced system downtime and faster incident resolution
• Accurate, up-to-date data in all integrated tools and platforms
• Increased efficiency through workflow automation and tool optimization
• Faster reporting and better visibility into sales performance metrics
• Strong collaboration between sales, IT, and operations teams
• Scalable and secure infrastructure that supports company growth and expansion
  
   

Professional Qualifications: 

• 3+ years of experience in Operational Support / IT Infrastructure / Toolset Management (preferably in fintech, SaaS, or tech)
• Solid hands-on experience with CRM platforms (Salesforce, HubSpot, etc.) and BI tools (e.g., Looker, Tableau, Power BI)
• Familiarity with IT infrastructure as it relates to SaaS tools, system uptime, and integrations
• Understanding of sales processes and revenue operations KPIs
• Experience with automation tools is a plus
• Strong troubleshooting, organizational, and documentation skills
• Comfortable working cross-functionally in a fast-paced environment
• Intermediate English proficiency
• Adaptability to quickly adjust to changes

We are looking for a Computer Vision Engineer with solid ML/DL experience to join our team on challenging projects.
We consider engineers at Middle and Senior levels - tasks and responsibilities will be adjusted accordingly. 

Required Qualifications:

• 3+ years of experience in computer vision
• High proficiency in Python
• Strong experience with deep learning and the PyTorch framework for computer vision tasks
• Research experience in computer vision with a focus on delivering results
• Ability to work independently or within a small team, with a strong sense of ownership over results

Nice to Have:

• Experience with deep learning solutions for detection, tracking, image retrieval, and segmentation tasks
• Understanding of geometric computer vision principles
• Model optimization: quantization, pruning, neural network compilers
• Hands-on experience implementing low-level CV algorithms
• Experience with sensor fusion (IMU, magnetometer, GNSS, camera)
• Knowledge of C++