Jobs

1371
  • Β· 34 views Β· 5 applications Β· 8d

    Compliance Team Lead (Crypto/Web3) to $4000

    Full Remote Β· Worldwide Β· Product Β· 5 years of experience Β· English - None
    We are looking for an experienced Legal Team Lead to join our European crypto project β€” a fast-growing ecosystem providing blockchain-based financial services, exchange, and payment solutions. The role involves leading the legal department, ensuring...

    We are looking for an experienced Legal Team Lead to join our European crypto project β€” a fast-growing ecosystem providing blockchain-based financial services, exchange, and payment solutions. The role involves leading the legal department, ensuring compliance with European regulations, and supporting strategic business development in the cryptocurrency industry.

     

    Key Responsibilities:

    β€” Lead and manage the legal team across EU operations.

    β€” Ensure full compliance with MiCA, AML/CTF, GDPR, and other relevant EU financial regulations.

    β€” Draft, review, and negotiate contracts, partnership agreements, and investor documentation.

    β€” Advise management on corporate structure, licensing, and risk mitigation strategies.

    β€” Supervise legal due diligence for token listings, exchange operations, and payment integrations.

    β€” Coordinate communication with external legal advisors, auditors, and regulators.

    β€” Monitor regulatory developments and implement internal policies accordingly.

    β€” Report directly to top management and participate in strategic decision-making.

     

    Requirements:

    • European location is a must!

    β€” Master’s degree in Law (LL.M or equivalent).

    β€” 5+ years of experience in fintech, blockchain, or financial law.

    β€” Strong knowledge of EU crypto regulations (MiCA, AMLD5/6, GDPR).

    β€” Proven leadership experience in managing a legal or compliance team.

    β€”Excellent command of English (additional European languages are a plus).

    • Russian or Ukrainian is a must!

    β€” Strong attention to detail and the ability to make balanced legal and business decisions.

     

    Conditions:

    • Salary for full-time
    • Salary review 2 times a year

    β€” Format: Remote

    β€” Employment type: Full-time

    β€” Schedule: Flexible hours aligned with European time zones

    β€” Opportunity: Build and lead the legal structure of one of the most innovative crypto companies in Europe

     

    If you are interested, please, send your full and updated CV and telegram :)

    More
  • Β· 188 views Β· 24 applications Β· 16d

    Golang developer

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - B1
    About CherryTrader CherryTrader is an innovative product company developing a next-generation marketplace platform. Our goal is to redefine how digital marketplaces operate by offering seamless, scalable, and efficient solutions for users and businesses....

    About CherryTrader
    CherryTrader is an innovative product company developing a next-generation marketplace platform. Our goal is to redefine how digital marketplaces operate by offering seamless, scalable, and efficient solutions for users and businesses. As we expand, we are seeking a highly skilled Senior Backend Developer to lead key initiatives, influence architecture decisions, and help scale our backend systems.

    Role Overview
    As a Senior Backend Developer, you will be responsible for designing, building, and optimizing the core backend infrastructure of our platform. You will work closely with cross-functional teams to ensure scalability, performance, and reliability of services. This role is ideal for someone with a deep understanding of backend technologies and architectural best practices, particularly in Go and distributed systems.

    Key Responsibilities

    • Design and develop high-performance backend systems and RESTful APIs using Go (Golang)
    • Lead architectural decisions applying SOLID principles, design patterns, and Clean Architecture
    • Collaborate with engineering and product teams to design scalable, maintainable, and secure solutions
    • Optimize and manage relational databases (SQL) with a focus on performance and data integrity
    • Troubleshoot production issues and implement effective solutions
    • Drive DevOps and cloud integration efforts in collaboration with infrastructure teams

    Required Qualifications

    • 5+ years of professional experience in backend development
    • 3+ years of hands-on experience with Go (Golang)
    • Strong knowledge of SQL databases and query optimization
    • Deep understanding of REST API design and best practices
    • Proven experience applying Clean Architecture, SOLID principles, and advanced design patterns
    • Proficiency with Git, including resolving complex merge conflicts in collaborative environments
    • Ability to take ownership of large features and systems with minimal supervision
    • Strong communication skills and a proactive, team-oriented mindset

    Preferred Qualifications

    • Experience working with Google Cloud Platform (GCP)
    • Familiarity with Google Cloud Spanner or similar distributed SQL databases
    • Hands-on experience with microservices architecture
    • Knowledge of gRPC and protocol buffers
    • Exposure to CI/CD processes and infrastructure automation

    What We Offer

    • A product-driven company culture with long-term vision
    • Technical ownership and autonomy
    • Remote-first work environment with flexible hours
    • Competitive compensation based on seniority and performance
    • An opportunity to influence product architecture and direction from an early stage
    More
  • Β· 72 views Β· 4 applications Β· 5d

    Senior C# Engineer (Relocation to Madrid)

    Office Work Β· Spain Β· 5 years of experience Β· English - None
    We are looking for a Senior C# Engineer to join the FinTech team developing a remittance and payment services platform. The project focuses on building secure and compliant systems for international money transfers, partner integrations, and automation of...

    We are looking for a Senior C# Engineer to join the FinTech team developing a remittance and payment services platform. The project focuses on building secure and compliant systems for international money transfers, partner integrations, and automation of financial operations. We expect the new team member to be technically strong, proactive, and business-oriented, with proven experience in FinTech system development β€” ideally in areas such as core banking, remittance, or API-based financial integrations. You will work closely with business and operations teams to ensure efficient, accurate, and transparent financial workflows.

     

    Details

    Location: EU (The first 3 months you will remotely, after - relocate to Madrid, with onsite client support)
    Employment Type: Full-time onsite in the office
    Start Date: ASAP
    Language Requirements: English - Fluent, Spanish - as plus

     

    Project Description

    A licensed remittance and payment services provider focused on delivering fast, secure, and compliant international transfers.
    The company operates within the FinTech domain, serving global remittance corridors and integrating with multiple partners and financial institutions through API-based connectivity.

     

    Requirements:

    • 5+ years of commercial experience in backend development using C# / .NET
    • Proven experience in FinTech systems β€” core banking, remittance platforms, payment processing - MUST
    • Strong understanding of money movement, reconciliation, and transaction workflows
    • Hands-on experience with RESTful APIs, partner/banking integrations, and financial automation
    • Solid knowledge of SQL databases and experience with data consistency/reconciliation logic
    • Experience building and maintaining scalable backend services and API-based architectures
    • Understanding of security and compliance related to financial data exchange
    • Ability to define and document functional and technical requirements
    • Experience collaborating with business and operations teams to improve financial processes
    • Excellent communication skills and a proactive, problem-solving mindset
    • English B2+, Spanish - as plus

     

    Key Responsibilities:

    • Develop and maintain backend services in C#
    • Build integrations with partner and banking APIs
    • Automate internal operations and reconciliation processes
    • Contribute to functional and technical requirements definition
    • Collaborate closely with business and operations teams to optimize financial workflows
    More
  • Β· 141 views Β· 2 applications Β· 9d

    Tech Lead / Software Architect (Python/Django + React)

    Full Remote Β· United States Β· 5 years of experience Β· English - B2
    Join a US-based, mission-driven tech company building a platform that connects nonprofits and small businesses with skilled volunteers. This is a key technical leadership role with full ownership of architecture, engineering standards, and long-term...

    Join a US-based, mission-driven tech company building a platform that connects nonprofits and small businesses with skilled volunteers.
    This is a key technical leadership role with full ownership of architecture, engineering standards, and long-term technical direction.


    Who we’re looking for (US-based ONLY)

    ‼️ This role is open exclusively to candidates who are physically located in the United States.


    Must Have

    • 5+ years of experience in software engineering
    • 2+ years in a Tech Lead / Software Architect role
    • Strong hands-on expertise with Python (Django) and React
    • Proven experience designing scalable architectures and making core technical decisions
    • Solid knowledge of PostgreSQL, API design, system integrations
    • Strong background with AWS (Render is a plus)
    • Confident with DevOps practices: CI/CD, IaC, monitoring
    • English level B2–C1
    • Structured, proactive, able to mentor engineers and set technical standards
    • Ready to act as the key technical owner of the platform


    Nice to Have

    • Experience with SaaS / platform architecture
    • ElasticSearch experience
    • AI/ML or OpenAI API integration experience
    • Serverless or microservices orchestration
    • Background in nonprofit or impact-driven projects


    What you’ll do

    • Own the platform’s architecture and long-term technical direction
    • Spend ~70% of your time on hands-on development
    • Build and optimize APIs, data flows, and integrations
    • Lead integrations with OpenAI API, Klaviyo, SendGrid
    • Design and maintain CI/CD pipelines and cloud infrastructure (AWS, Render)
    • Ensure performance, scalability, and reliability
    • Conduct code reviews and mentor the engineering team
    • Collaborate closely with product and design to shape technical solutions


    We Offer

    • Full ownership of the platform’s technical architecture
    • High autonomy and trust β€” no micromanagement
    • Work on a product with real social impact
    • 100% remote, flexible schedule
    • Modern stack with freedom to improve and evolve it
    • Direct influence on product and technical roadmap

    About the Company

    US-based impact-driven tech platform connecting nonprofits and small businesses with skilled volunteers.
    This role is the central technical pillar of the team.


    Location: USA only
    Format: 100% Remote
    Schedule: Flexible, with one recurring sync at 4:00 PM EST

    More
  • Β· 41 views Β· 5 applications Β· 5d

    Ruby on Rails Engineer

    Full Remote Β· EU Β· 5 years of experience Β· English - None
    We are looking for an experienced Ruby on Rails Engineer to join a product-driven team working on scalable web applications with a strong focus on performance, clean architecture, and business impact. The role involves building and maintaining backend...

    We are looking for an experienced Ruby on Rails Engineer to join a product-driven team working on scalable web applications with a strong focus on performance, clean architecture, and business impact. The role involves building and maintaining backend services, integrating third-party systems, and collaborating closely with frontend and product teams.

     

    Details

    • Location: Fully Remote
    • Employment Type: Full-time
    • Start Date: ASAP
    • Language Requirements: English – Upper-Intermediate or higher
    • Time Zone Overlap: At least 2–3 hours with CET / US time zones

     

    Key Responsibilities

    • Develop, maintain, and scale backend services using Ruby on Rails
    • Design and implement RESTful APIs and backend business logic
    • Work with relational databases, ensuring performance and data integrity
    • Integrate third-party services (payments, marketplaces, external APIs)
    • Collaborate with frontend developers, product managers, and QA
    • Write clean, maintainable, and well-tested code
    • Participate in code reviews and architectural discussions

     

    Requirements

    • 4+ years of commercial experience with Ruby on Rails
    • Strong understanding of MVC architecture and Rails ecosystem
    • Experience with PostgreSQL / MySQL
    • Solid knowledge of REST APIs and background jobs (Sidekiq or similar)
    • Familiarity with Git and modern development workflows
    • Experience working in Agile/Scrum environments
    • Ability to work independently in a remote setup

     

    Nice to Have

    • Experience with Hotwire / Turbo / Stimulus
    • Background in marketplace or e-commerce platforms
    • Experience with cloud platforms (AWS / GCP)
    • Knowledge of Docker and CI/CD pipelines
    • Basic frontend skills (HTML, CSS, JavaScript)
    More
  • Β· 105 views Β· 20 applications Β· 29d

    Strong Regular/Senior Java Developer

    Full Remote Β· Ukraine Β· 5 years of experience Β· English - B2
    Project Description: Our client is a Swiss leader in online trading, serving over 500,000 clients who can trade more than 3 million products through highly performant and secure platforms. In addition to various online trading products, including stocks,...
    • Project Description:

      Our client is a Swiss leader in online trading, serving over 500,000 clients who can trade more than 3 million products through highly performant and secure platforms. In addition to various online trading products, including stocks, bonds, funds, derivative products, and cryptocurrencies, we also offer Forex, Robo-Advisory, and Mortgage solutions.

      Since 2012, we have partnered with the client to develop innovative and cutting-edge digital solutions that help customers achieve their investment goals. Our solutions are continuously evolving, transitioning into atomic microservices and self-contained systems.

      The team is a distributed cross-functional group working as a single unit across onshore and offshore locations. It owns the full delivery lifecycle: from feature design and implementation to support and maintenance. Work is split between developing new functionality and evolving existing systems, with rotation based on project priorities. Engineers participate in technical discussions, contribute to design decisions, and are expected to deliver maintainable code and thoughtfully designed solutions.
       

    • Responsibilities:

      - Design and develop modern web applications and backend services.
      - Extend and refactor existing systems as part of ongoing product evolution.
      - Implement business features and actively contribute to architectural and design decisions.
      - Participate in estimations and drive technical improvements as part of the team's development process.
      - Conduct code reviews and collaborate with peers to maintain codebase standards.
      - Analyse and resolve issues in test and production environments.
       

    • Mandatory Skills Description:

      - 5+ years of commercial experience as a Java developer
      - Solid knowledge of Java core, Spring, ORM, SQL, and Redis
      - Firm understanding of Client-Server architecture, REST, Servlets
      - Hands-on experience with Java Messaging and Microservices
      - Experience with Maven, bash, Docker
      - Good spoken English and solid communication skills overall
      - Strong analytical and problem-solving skills

    More
  • Β· 49 views Β· 3 applications Β· 2d

    Senior SDE

    Full Remote Β· Croatia, Poland Β· 5 years of experience Β· English - B2
    We are seeking a highly skilled Mid–Senior C# Developer to join our team and contribute to the development of core system services and automation workflows. The role involves building reliable, secure, and efficient solutions that support large-scale...

    We are seeking a highly skilled Mid–Senior C# Developer to join our team and contribute to the development of core system services and automation workflows. The role involves building reliable, secure, and efficient solutions that support large-scale infrastructure processes.


    .    Responsibilities:

    • Develop and maintain backend services using C# and .NET.
    • Design and implement CI/CD pipelines to ensure efficient delivery processes.
    • Create automation scripts using PowerShell.
    • Work with monitoring and incident management systems (SCOM, OME, IcM).
    • Manage servers, databases, applications, and test environments across multiple datacenters and cloud regions.
    • Collaborate with security teams on incident management, risk mitigation, and code issues.
    • Support business applications on Dynamics and PowerApps.
    • Analyze infrastructure, troubleshoot issues, and optimize processes

       

      Requirements :

      - Strong hands-on experience with C# and .NET

      - 5+ years of commercial experience
      - Practical experience in PowerShell automation
      - Hands-on experience with Azure and cloud services
      - Experience with SCOM / OME / IcM
      - Experience with Azure DevOps pipelines


       

    More
  • Β· 150 views Β· 33 applications Β· 3d

    Full Stack Developer (Node+React)

    Full Remote Β· EU Β· 5 years of experience Β· English - None
    Welcome to ApexTech We’re a dynamic IT outsource company working on a variety of small- to mid-sized client projects. Right now, we’re expanding and looking for a versatile Fullstack Developer who enjoys learning, building, and switching between...

    Welcome to ApexTech πŸ™Œ

     

    We’re a dynamic IT outsource company working on a variety of small- to mid-sized client projects. Right now, we’re expanding and looking for a versatile πŸš€ Fullstack Developer πŸš€ who enjoys learning, building, and switching between projects.

     

    Responsibilities:
    β€’ Develop and maintain web applications using React, Node.js, TypeScript. 
    β€’ Collaborate with the internal team to deliver high-quality, scalable solutions
    β€’ Support and maintain existing codebases, fixing bugs and implementing improvements
    β€’ Be proactive in learning and adopting new technologies based on project needs

     

    Requirments:
    β€’ 5 years of experience as a fullstack or web developer
    β€’ Confident working with at least React and Node.js
    β€’ Comfortable juggling multiple small projects at the same time
    β€’ Curious and open to picking up new technologies
    β€’ Responsible, self-organized, and a good communicator
    β€’ English: intermediate or higher
    β€’ Familiarity with Docker, REST APIs, or CI/CD pipelines

     

    Interview process:
    1. Intro-call with the Recruiter.
    2. Technical Interview.

    3. Client Interview

     

    What do we offer?
    πŸ’» Full remote work and meetings for brainstorming.
    πŸ’‘Freedom and flexibility.
    πŸš€A team of top experts and the synergy of the entire organization.
    πŸ’ΈCompetitive salary.
    🌿 Vacation and sick leaves.
    πŸ™Therapy sessions with our psychologist.
    πŸ“šBudget for professional development.
    πŸ’ƒCorporate events and team building.

    More
  • Β· 339 views Β· 126 applications Β· 20d

    Senior Backend Engineer (Node.js/TS) - Real-time AI Systems

    Full Remote Β· Worldwide Β· Product Β· 5 years of experience Β· English - B2
    We are creating the future of software development: a system that generates and executes applications from natural language in real-time. Backed by a team of ex-FAANG engineers, we are moving fast. Our MVP is nearly ready, and we need a Senior Node.js...

    We are creating the future of software development: a system that generates and executes applications from natural language in real-time.
     

    Backed by a team of ex-FAANG engineers, we are moving fast. Our MVP is nearly ready, and we need a Senior Node.js Engineer to speed up and cross the finish line and scale.
     

    The Mission We need clean, rapid execution. We're build ingthe engine that powers real-time AI generation.
     

    The Tech Stack & Challenge

    • Core: Node.js + TypeScript (Production grade).
    • Streaming: Building robust streaming APIs (handling real-time token generation).
    • Resilience: Managing concurrency, client disconnects, and heavy background workflows (analytics/billing).
    • Database: PostgreSQL.
       

    Who You Are

    • You have deep experience with Async/Streaming systems (Web Streams API is a plus).
    • You understand the difference between a request lifecycle and a background process.
    • You write code that handles memory leaks and abort signals gracefully.
    • You are a "doer", you want to translate diagrams into working code, fast.
       

    If you are a senior dev who loves correctness, performance, and shipping fast, you’ll feel at home here.
     

    Interested? Please send a short note with:

    1. Your experience with Node.js streaming.
    2. An example of how you’ve handled complex concurrency or background jobs.
    More
  • Β· 195 views Β· 50 applications Β· 15d

    Senior Backend Engineer (Java+Python) (USA time zone)

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - B2
    Overview: We are looking for a Senior Backend Engineer to lead the development of core backend services within a modern microservice infrastructure that powers mobile and embedded clients. This is a senior, hands-on role with architectural ownership,...

    Overview:
    We are looking for a Senior Backend Engineer to lead the development of core backend services within a modern microservice infrastructure that powers mobile and embedded clients. This is a senior, hands-on role with architectural ownership, ideal for an engineer who enjoys building scalable distributed systems, designing secure and reliable APIs, and mentoring other developers. You will drive technical decisions and collaborate closely with architects, frontend engineers, and product teams to deliver future-proof backend solutions.

     

    Responsibilities:

    • Lead the design and development of backend services using Java in a Docker/Kubernetes-based environment;
    • Drive architectural improvements and establish backend best practices across the platform;
    • Design, implement, and optimize event-driven systems based on Kafka;
    • Build secure, scalable RESTful APIs for internal and external consumers;
    • Design and query complex data models using PostgreSQL, with strong focus on performance and reliability;
    • Collaborate closely with frontend and product teams to deliver features end-to-end, from concept to production;
    • Ensure system reliability and observability through logging, tracing, and monitoring;
    • Enable integrations with data pipelines and ML-powered services as part of data-driven and AI initiatives;
    • Mentor junior engineers, conduct code reviews, and support team-wide technical growth.

     

    Requirements:

    • 5+ years of professional experience in backend development within microservice and cloud-native environments;
    • Strong production experience with Java (e.g., Spring Boot or similar frameworks);
    • Python experience is a plus, especially for data pipelines, ML integration, or scripting tasks;
    • Deep understanding of:
      • Kafka and event-driven architectures;
      • PostgreSQL, including advanced schema design and query optimization;
      • Secure API design and implementation (OAuth2, HTTPS, mTLS).
    • Hands-on experience with Docker, Kubernetes, and CI/CD pipelines in production;
    • Proven ability to lead cross-functional technical initiatives and make architectural decisions;
    • Demonstrated experience mentoring or guiding less experienced engineers;
    • Exposure to video streaming backends or media platforms is a plus;
    • Strong interest or background in ML- or data-driven applications;
    • Bonus: Experience with observability stacks (e.g., Prometheus, Grafana) or real-time analytics systems.
    More
  • Β· 177 views Β· 65 applications Β· 8d

    Senior React Native Engineer

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - B2
    S-PRO, a top-tier Digital Innovation and Software Engineering company. We specialize in providing cutting-edge services for fast-growing businesses and enterprises, with a strong focus on Finance, Renewable Energy and Healthcare domains and expertise in...

    S-PRO, a top-tier Digital Innovation and Software Engineering company. We specialize in providing cutting-edge services for fast-growing businesses and enterprises, with a strong focus on Finance, Renewable Energy and Healthcare domains and expertise in AI, Blockchain and Data Science. Our team of over 200 dedicated professionals works tirelessly across our global offices to develop innovative digital solutions that drive sustainable business value and increase our client’s competitiveness in a dynamic digital landscape.

     

    Project description: The product is one of the first licensed digital asset banks powered by Blockchain. Our team is covering the delivery part of one of the core company’s services. It allows in a very simplified manner, process of capital raising for companies and investors providing the creation of new assets, manage offerings, buy, trade and earn crypto to future-proof your investment strategy.

     

    Responsibilities:

    • Collaborate with the team to build a mobile application 
    • Write a new mobile app using React Native and Expo, ensuring smooth performance and maintainable architecture
    • Improve and extend the app’s functionality, including optimization of payment processing
    • Ensure high-quality, pixel-perfect UI implementation based on provided designs
    • Participate in planning, discovery, and implementation of new features
    • Take ownership of feature development end-to-end, including testing and documentation

     

    Requirements:

    • 5+ years of hands-on experience with React Native and TypeScript;
    • Familiarity with modern React patterns and state management (e.g., Zustand or Jotai Toolkit);
    • Experience with React Query (or similar server-state libraries);
    • Experience with React Navigation or Expo Router;
    • Experience with secure storage solutions and basic mobile security concepts;
    • Familiarity with Expo modules and config plugins (optional but appreciated);
    • Ability to work with native modules and basic Xcode/Android Studio configuration;
    • Good understanding of testing (unit & integration) for React Native applications;
    • Strong sense of ownership and high-degree of quality in delivered working results.

      Nice to have:
    • Experience working with banking/financial applications;
    • Experience with enterprise-grade CI/CD for mobile;
    • Proactive communication and creative in designing new solutions.

     

    What we offer:

    • Long team focus: we create an environment of transparent communication, and minimal bureaucracy, which leads to long-term relationships.
    • Development of niche expertise: we are working in several niches, such as FinTech, healthcare, and logistics. Therefore, our employees can develop their own expertise in these domains.
    • Continuous learning: we create employee development plans / personal roadmaps /quick promotion processes.
    • Internal career development: 80% of our current executives were promoted to those positions within S-PRO. We encourage initiative. If a person wants to set new challenges and grow, we will definitely support them.

     

    Benefits and perks:

    • Flexible schedule.
    • Remote work model.
    • Medical insurance
    • Paid vacations
    • Paid Sick-leaves.
    • Paid State holidays.
    More
  • Β· 83 views Β· 6 applications Β· 29d

    Full Stack Software Engineer (Python / Node.js / React)

    Full Remote Β· Ukraine Β· 5 years of experience Β· English - C1
    Location: Remote Client: USA (Texas) Domain: AI-driven SaaS for Healthcare & Life Sciences Industry: Healthcare, Pharmaceuticals, Compliance Automation About the project We are building an AI-driven SaaS platform that automates regulatory compliance and...

    Location: Remote
    Client: USA (Texas)
    Domain: AI-driven SaaS for Healthcare & Life Sciences
    Industry: Healthcare, Pharmaceuticals, Compliance Automation
     

    About the project

    We are building an AI-driven SaaS platform that automates regulatory compliance and software revisions for highly regulated industries such as healthcare, life sciences, and pharmaceuticals.

    The product helps companies stay compliant with industry regulations by combining AI automation, backend services, and modern web interfaces. You will work on real production features with a strong focus on reliability, performance, and clean architecture.
     

    Role overview

    We are looking for a Full Stack Software Engineer with 5 years of commercial experience to join the team and work across backend and frontend parts of the platform.

    You will design and develop scalable web applications, build robust APIs, and create intuitive user interfaces while collaborating closely with product managers, designers, and other engineers.

    A strong Python background is essential, especially for building APIs with FastAPI. Solid experience with React and modern JavaScript/TypeScript is also required.
     

    Responsibilities

    • Design, develop, and maintain web applications using Python, Node.js, React, and TypeScript
    • Build and maintain RESTful APIs using FastAPI, ensuring scalability, security, and performance
    • Develop responsive and user-friendly interfaces with React
    • Collaborate closely with backend and frontend engineers to deliver cohesive solutions
    • Implement best practices such as code reviews, automated testing, and CI/CD
    • Troubleshoot, debug, and optimize application performance and reliability
    • Contribute to architectural decisions and the evolution of the technology stack
    • Work with product managers and designers to deliver high-quality features
       

    Requirements

    • 3–5 years of hands-on commercial experience with Python, Node.js, and React
    • Strong experience building APIs with FastAPI (or similar Python frameworks)
    • Proficiency in JavaScript / TypeScript and object-oriented programming
    • Experience with RESTful API design and third-party service integrations
    • Familiarity with Git, npm, and modern development workflows
    • Strong problem-solving skills and attention to detail
    • Good communication skills and ability to work in a team
       

    Nice to have

    • Experience with cloud platforms (AWS preferred, Azure or GCP are also fine)
    • Experience with databases: PostgreSQL (preferred), MongoDB, or MySQL
    • Understanding of automated testing (Playwright, Selenium) and TDD
    • Experience with Docker and containerized environments
       

    What we offer

    • Fully remote collaboration
    • Work with a US-based client on a meaningful healthcare-focused product
    • Opportunity to work on AI-driven SaaS in a regulated industry
    • Stable project with real production impact
    • Professional, engineering-driven team and clear technical goals
    More
  • Β· 105 views Β· 19 applications Β· 6d

    Senior DevOps Engineer to $5500

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - None
    We are looking for a Senior DevOps Engineer to own the infrastructure for our new Medallion Lakehouse and AI-powered applications. You will not be maintaining legacy on-prem servers; you will be building the cloud-native foundation that drives our...

    We are looking for a Senior DevOps Engineer to own the infrastructure for our new Medallion Lakehouse and AI-powered applications. You will not be maintaining legacy on-prem servers; you will be building the cloud-native foundation that drives our growth.

    Tech Stack

    β€’ Cloud: Azure PaaS (AKS, Container Apps, Functions, Key Vault, ADLS Gen2, Azure SQL).

    β€’ IaC: Terraform (Module design, state management).

    β€’ CI/CD: GitHub Actions (Automated pipelines, quality gates).

    β€’ Orchestration: Kubernetes (AKS), Docker.

    β€’ Observability: Prometheus, Grafana, Azure Monitor.

    β€’ Scripting: Python, Bash.
     

    Responsibilities

    β€’ Infrastructure as Code: Design and maintain scalable Azure infrastructure using Terraform. Implement module-based architectures for our Data Lakehouse (Bronze/Silver/Gold layers) and AI microservices.

    β€’ CI/CD Mastery: Build bulletproof GitHub Actions pipelines for Python applications and data workflows. Implement automated testing, security scanning, and seamless deployment strategies.

    β€’ Reliability & Observability: Implement monitoring dashboards (Grafana/Azure Monitor) and alerting strategies. Define and track SLIs/SLOs to distinguish between application and infrastructure noise.

    β€’ Security & Compliance: Enforce "Zero Trust" and "Least Privilege" principles. Manage identity (Azure AD/Entra ID), secrets (Key Vault), and network security (VNet, Private Endpoints).

    β€’ Disaster Recovery: Design and test backup/recovery strategies for databases and data lakes to ensure business continuity.

    β€’ Collaboration: Act as a bridge between Data Engineering and Backend teams, helping optimize Docker containers and troubleshoot production issues.
     

    Requirements

    β€’ 5+ years of DevOps/Platform Engineering experience.

    β€’ Deep expertise in Azure ecosystems (proven track record of delivering Azure-based systems).

    β€’ Strong proficiency with Terraform in a production environment.

    β€’ Experience managing Kubernetes (AKS) and containerized workloads.

    β€’ Solid understanding of networking (VNets, DNS, Firewalls) and security (RBAC, IAM).

    β€’ English B2 – We communicate daily with the US team.
     

    Nice to Have

    β€’ Experience supporting Data Engineering teams (Data Factory, Databricks, Spark).

    β€’ Background in Python development or complex scripting.

    β€’ Experience with GitOps workflows (ArgoCD).
     

    What We Offer

    β€’ Greenfield Project: No legacy code or technical debt. You choose the right tools for the job.

    β€’ High Autonomy: You are the infrastructure owner. Your architecture decisions matter.

    β€’ Remote-First: Flexible schedule

    β€’ Stability: Long-term role with a stable US company

    β€’ Direct Impact: Your work directly powers AI models predicting roof damage and optimizing multimillion-dollar construction projects.

     

    About the Project

    TeamCraft is a large U.S. commercial roofing company undergoing an ambitious AI transformation. We’re building a centralized data platform from scratch - a unified Azure Lakehouse that integrates multiple operational systems into a single source of truth.
     

    This is greenfield development with real business outcomes - not legacy maintenance.

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  • Β· 273 views Β· 22 applications Β· 14d

    Senior React Native Developer / Tech Lead to $8000

    Full Remote Β· Ukraine Β· Product Β· 5 years of experience Β· English - C1
    We’re hiring a Senior React Native Developer to help us build and scale a subscription-based mobile app. This role is for a strong senior IC who owns complex features end-to-end, writes high-quality code, improves architecture, and thinks...

    We’re hiring a Senior React Native Developer to help us build and scale a subscription-based mobile app.

     

    This role is for a strong senior IC who owns complex features end-to-end, writes high-quality code, improves architecture, and thinks systematically. We value people who think through problems before implementation and communicate clearly.

     

    Tech Stack

    • React Native
    • Expo (bare workflow)
    • TypeScript (strict, production-grade)
    • RevenueCat (subscriptions & entitlements)
    • Superwall (paywalls & experimentation)
    • iOS & Android (App Store & Google Play)

       

    Responsibilities

    • Own complex features from problem definition to production release.
    • Write high-quality, maintainable React Native code.
    • Improve existing architecture and reduce tech debt without slowing product velocity.
    • Review PRs with a focus on correctness, readability, and long-term maintainability.
    • Collaborate closely with product and design to turn goals into clear technical plans.
    • Take senior-level ownership: identify risks early, think through solutions, and ship reliably.

       

    What We’re Looking For

    • Strong experience shipping production React Native apps.
    • Hands-on experience with subscription-based products, including:
      • Paywalls and onboarding β†’ subscription flows
      • Entitlements and access control
      • Handling edge cases (upgrades, downgrades, refunds, restore purchases)
    • Experience with RevenueCat and/or Superwall.
    • Excellent written and verbal communication.
    • Systematic, linear thinker who plans before coding.
    • Comfortable working independently and making sound technical decisions.

     

    Nice to Have

    • Experience using AI tools or APIs to automate workflows, improve developer productivity, or enhance user experience.
    • Experience with mobile analytics, experimentation, or A/B testing.
    • Familiarity with performance optimization and debugging on mobile.
    • Startup or product-driven team experience.

     

    How We Work

    • We prioritize clarity, thoughtful planning, and high-quality execution.
    • We favor systematic thinking over rigid methodology.
    • Decisions are documented and tradeoffs are explicit.

     

    What Success Looks Like

    • Subscription flows are reliable, measurable, and optimized.
    • Complex features ship with confidence and minimal regressions.
    • Architecture steadily improves, making the codebase easier to extend.
    • Engineering work stays aligned with product goals.
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  • Β· 55 views Β· 8 applications Β· 5d

    Senior Data Engineer (Healthcare domain)

    Full Remote Β· EU Β· 5 years of experience Β· English - None
    Are you passionate about building large-scale cloud data infrastructure that makes a real difference? We are looking for a Senior Data Engineer to join our team and work on an impactful healthcare technology project. This role offers a remote work format...

    Are you passionate about building large-scale cloud data infrastructure that makes a real difference? We are looking for a Senior Data Engineer to join our team and work on an impactful healthcare technology project. This role offers a remote work format with the flexibility to collaborate across international teams.

    At Sigma Software, we deliver innovative IT solutions to global clients in multiple industries, and we take pride in projects that improve lives. Joining us means working with cutting-edge technologies, contributing to meaningful initiatives, and growing in a supportive environment.


    CUSTOMER
    Our client is a leading medical technology company. Its portfolio of products, services, and solutions is at the center of clinical decision-making and treatment pathways. Patient-centered innovation has always been, and will always be, at the core of the company. The client is committed to improving patient outcomes and experiences, regardless of where patients live or what they face. The Customer is innovating sustainably to provide healthcare for everyone, everywhere. 


    PROJECT
    The project focuses on building and maintaining large-scale cloud-based data infrastructure for healthcare applications. It involves designing efficient data pipelines, creating self-service tools, and implementing microservices to simplify complex processes. The work will directly impact how healthcare providers access, process, and analyze critical medical data, ultimately improving patient care.

     

    Responsibilities:

    • Collaborate with the Product Owner and team leads to define and design efficient pipelines and data schemas
    • Build and maintain infrastructure using Terraform for cloud platforms
    • Design and implement large-scale cloud data infrastructure, self-service tooling, and microservices
    • Work with large datasets to optimize performance and ensure seamless data integration
    • Develop and maintain squad-specific data architectures and pipelines following ETL and Data Lake principles
    • Discover, analyze, and organize disparate data sources into clean, understandable schemas

     

    Requirements:

    • Hands-on experience with cloud computing services in data and analytics
    • Experience with data modeling, reporting tools, data governance, and data warehousing
    • Proficiency in Python and PySpark for distributed data processing
    • Experience with Azure, Snowflake, and Databricks
    • Experience with Docker and Kubernetes
    • Knowledge of infrastructure as code (Terraform)
    • Advanced SQL skills and familiarity with big data databases such as Snowflake, Redshift, etc.
    • Experience with stream processing technologies such as Kafka, Spark Structured Streaming
    • At least an Upper-Intermediate level of English 

     

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