Jobs Python

We are looking for a strong Python Backend Developer who wants to join us at an early stage and become part of building a real technology company.

English B1 is required, as English is the main language of communication within our international team.
You will not be joining the project alone — our development team already includes three Python Developers, one Senior Python Developer, one Frontend Developer. You will work closely with them, share technical decisions, and help us continue building and improving the product together.
 

What We Are Looking For

• Strong practical experience with Python backend development
• Experience with vector databases / graph databases / knowledge graphs
• Practical experience integrating AI / LLM / ML solutions into real products
• Good understanding of backend architecture, APIs, databases, and data processing
• English B1

What We Offer

• Full remote work
• Flexible schedule
• Opportunity to join an active startup at an early stage
• Real influence on product architecture and technical decisions
• Small team without unnecessary bureaucracy
• Direct impact on the future of the company
• Opportunity to receive company equity

Important

We are looking not just for a developer, but for an engineer who has already worked with AI and modern data technologies in practice.

When applying, please include examples of real projects where you worked with Python backend development, AI integrations, vector or graph databases, knowledge graphs, RAG, or other data-intensive systems.

We are especially interested in what you personally built and what technical problems you solved.

We're looking for a Customer Success Engineer to join our team and support one of our US-based clients.

This is a hands-on engineering role focused on customer data migrations, technical problem-solving, and ongoing customer support. You'll work closely with the backend engineering team and directly with customers to migrate their data, investigate technical issues, and implement reliable solutions.

We're looking for an experienced backend engineer who combines strong Python/Django and data skills with curiosity, ownership, attention to detail, and confident customer communication.

 

🧙‍♂️ In this role, you will

• Own customer data migrations from initial investigation through successful completion.
• Analyze, transform, validate, and migrate data from different customer systems and data sources.
• Build and maintain Python/Django scripts and tools supporting migration workflows.
• Work with relational and NoSQL data, different data structures, and file formats.
• Investigate customer-reported technical issues, identify root causes, and drive them through to resolution.
• Handle customer-specific backend changes, integrations, and bug fixes.
• Work with REST APIs and third-party systems during migrations and troubleshooting.
• Communicate directly with customers to clarify technical requirements, investigate issues, and coordinate solutions.
• Collaborate closely with backend engineers and other cross-functional team members.
• Improve migration processes and tooling to make recurring customer onboarding more reliable and scalable.
   

🎯 You may be interested if

• You enjoy investigating complex or unclear technical problems and figuring out how things work.
• You are comfortable combining hands-on engineering with direct customer communication.
• You enjoy working with data and solving migration and integration challenges.
• You thrive in a remote work setup and appreciate autonomy in organizing your work.
• You are proactive, detail-oriented, and take ownership of problems through completion.
• You enjoy working in a small, dynamic team where your contribution has a visible impact.
   

👌 Role Requirements

• 4+ years of professional backend development experience with Python and Django.
• Strong hands-on experience with PostgreSQL, including complex queries, data structures, and database migrations.
• Practical experience with data migrations, data transformation, and migration scripts.
• Experience working with different data sources, data formats, and database models, including relational and NoSQL data.
• Strong understanding of REST APIs and experience with third-party integrations.
• Strong debugging and troubleshooting skills, with the ability to investigate unfamiliar code, data, and system behavior and identify root causes.
• Hands-on experience with Git, Docker, and Bash in day-to-day development.
• Experience using AI-powered development tools, particularly Claude Code or similar coding agents, as part of the development workflow.
• Ability to communicate directly with customers, clarify technical problems, and explain solutions clearly.
• Strong ownership, attention to detail, and persistence in bringing technical issues through to resolution.
• Upper-Intermediate English (B2+) or higher, including confident spoken communication.
  
   

Nice to have

• Experience with customer data migrations between complex B2B/SaaS platforms.
• Experience building or improving internal migration tooling and automation.
• Experience working in a B2B SaaS product environment.
• Experience with CI/CD pipelines and production deployment workflows.
• Experience working with Azure and cloud-based applications.
• Experience troubleshooting customer-specific integrations and data issues in production.
• Experience with CRM platforms.
   

💻 Working Conditions

• Employment Type: Full-Time.
• This is a fully remote position with the team distributed across Ukraine.
• Preferred working hours: approximately 13:00–22:00 Kyiv time, with availability until at least 1:00 PM U.S. Central Time.
• 20 working days of paid vacation per year.
• Direct collaboration with a US-based product team and customers.
• A high level of autonomy and ownership over customer migrations and technical problem-solving.

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

We are looking for a Team Leader (Python)!

Requirements:

- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field;
- 5+ years of experience in software engineering;
- 2+ years of team management experience;
- Strong proficiency in Python, with experience with other programming languages;
- Solid understanding of computer science fundamentals, data structures, and algorithms;
- Strong knowledge of concurrency, parallelism, and related concepts;
- Experience with back-end frameworks (FastAPI);
- Expertise in object-oriented programming and SOLID principles;
- Experience with RESTful APIs and microservices architecture;
- Proficiency in version control systems, particularly Git;
- Familiarity with CI/CD pipelines and DevOps practices;
- Strong understanding of database systems (both SQL and NoSQL);
-  Experience with AWS services, cloud architecture, and Serverless development;
- Knowledge of containerization technologies (Docker, Kubernetes);
- Testing and quality mindset; understanding Test Pyramid methodology and different Test Categories;
- Understanding of Observability (structured logging, metrics, traces, OpenTelemetry) and Reliability (circuit breakers, backoff, idempotency)

Will be a plus:

- Practical AI app experience: implementing RAG pipelines (chunking, indexing, retrieval, re-ranking) with vector stores (e.g., pgvector, Qdrant, Pinecone) and framework glue (LlamaIndex, LangChain, pydantic_ai or any similar);
- Integrating LLM providers via API (prompt/function-calling/tool use), with guardrails, caching, retries, and fallbacks.
- Familiarity with MLOps tools and practices (deepeval, prompts versioning, etc.);
- Experience with message brokers (e.g., NATS, Kafka, RabbitMQ);
- Familiarity with graph databases and algorithms;
- Understanding of gambling or gaming industry technology stacks

Responsibilities:

- Take ownership of team projects, including delivery coordination, technical quality, risks, dependencies, and day-to-day execution;
- Plan and coordinate team work considering priorities, developer availability, vacations, sick leaves, and backup ownership;
- Ensure delivered solutions follow agreed architecture and clarify unclear technical decisions with the Architect / DTO / stakeholders;
- Be responsible for quality, consistency, maintainability, and production readiness of solutions delivered in code;
- Lead code reviews and improve engineering practices across testing, observability, documentation, reliability, and security;
- Develop and maintain robust, scalable backend applications and services that integrate AI models and AI-powered workflows;
- Design and implement efficient APIs, orchestration services, integrations, and data processing components;
- Collaborate closely with Architect, AI team, product, data, and infrastructure teams to deliver practical AI solutions;
- Troubleshoot, debug, optimize, and upgrade existing systems;
- Support and mentor developers through technical guidance, 1:1 meetings, knowledge sharing, and development planning;
- Identify knowledge gaps, reduce single points of failure, and organize knowledge sharing across team projects;
- Promote practical AI Engineering adoption in the team, including AI-assisted development, testing, documentation, debugging, and review workflows;
- Ensure AI-assisted work improves delivery speed without reducing code quality, security, or maintainability;
- Write and maintain technical documentation, diagrams, README files, and operational notes where needed;
- Stay updated with emerging backend, cloud, and AI Engineering practices and apply them where practical

Our benefits to you:
🍀 An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and more
🤝🏻 Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🧑🏻‍💻 Modern corporate equipment based on macOS or Windows, and additional equipment is provided
🏖️ Paid vacations, sick leave, personal events days, days off
💵 Referral program — enjoy cooperation with your colleagues and get a bonus
📚 Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
🎯 Rewards program for mentoring and coaching colleagues
✈️ In-house Travel Service
🦄 Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie/book/pets lovers, and more
🎳 Other benefits could be added based on your location

Requirements:

• Programming: Python 3.9, pytest, behave, boto3, IDE: VSCode
• Strong experience working with microservice architecture.
• Solid experience with AWS: API Gateway, CLI, Console, CodeBuild, CodePipeline, DocumentDB, DynamoDB, EventBridge, IAM, Lambda, SAM,
• Secrets Manager, Step Functions, Systems Manager)
• Solid experience with REST APIs: Stripe, Rapid7, Swagger/OpenAPI 3.xSource control: Git, BitBucket
• Code review/analysis (Bitbucket, Codacy)
• Issue and project tracking (JIRA, Confluence, Miro)
• Good level of English for daily interaction with the customer

Job Responsibilities

Development and maintenance of AWS based micro-services focused on business logic within policy platform for a leading UK based insurance company.

• Produce and maintain clean Python code
• Contribute to application architecture - design and build
• Building & improving software and services through CI/CD pipelines
• Discuss and implement security protocols within software and services
• Take part in sprint planning and estimate development efforts for features and stories, as well as participate in Code Review process

Department/Project Description

We are developing an interface into motor partner personal insurance for one of the largest UK insurance companies listed on the London Stock Exchange. We are building our system using a combination of modern Front-end technologies, microservices architecture, proven integration patterns and AWS Cloud.

The scope of work is back-end development focused on implementation, testing and maintenance of new features and legacy code base, in particular full policy management cycle including: invoicing, payment intents and chasing, pricing, amendments, premium overrides, policy renewals and cancellations.

Description

The Digital Health organization is technology team which focused on next generation Digital Health capabilities which deliver on the Medicine mission and vision to deliver Insight Driven Care. This role will operate within the Digital Health Applications & Interoperability subgroup of the broader Digital Health team, focused on patient engagement, care coordination, AI, healthcare analytics & interoperability amongst other advanced technologies which enhance our product portfolio with new services, while improving clinical & patient experiences.

The project is a cloud-based PaaS Ecosystem built with a privacy by design centric approach to provide a centralized cloud-based platform to store, classify, and control access to federated datasets in a scalable, secure, and efficient manner.

The ecosystem will allow Customer Operating Units (medical device departments) to store federated data sets of varying sizes and formats and control access to those data sets through Data steward(s). Source data sets can be exposed to qualified use cases and workflows through different project types.

The Healthcare Data Platform ecosystem will provide ML/AI project capabilities for streamlined development processes and a ML/AI workbench to enhance data exploration, wrangling, and model training.

OU’s: Currently, Nuero, Cardio, Diabetes is the OU that HDP data platform is working with, but there could be more OU’s coming up with requirements in future.

GL Role: is to work on the enhancement of current capabilities, including taking over the work that AWS proserve team is doing, and develop new requirements that will keep coming from different OU’s in the future.

#LI-MP2
#LI-Remote

Requirements

• AWS Platform: Working experience with AWS services – in particular serverless architectures (S3, RDS, Lamba, IAM, API Gateway, etc…) supporting API development in a microservices architecture
• Programming Languages: Strong programming skills in Python
• Data Formats: Experience with JSON, XML and other relevant data formats
• Healthcare Interoperability Tools: Previous experience with integration engines such as Intersystems, Lyniate, Redox, Mirth Connect, etc…
• CI/CD Tools: experience setting up and managing CI/CD pipelines using GitLab CI, Jenkins, or similar tools
• Scripting and automation: experience in scripting language such as Python, PowerShell, etc…
• Monitoring and Logging: Familiarity with monitoring & logging tools like CloudWatch, ELK, Dynatrace, Prometheus, etc…Source Code
• Management: Expertise with git commands and associated VCS (Gitlab, Github, Gitea or similar)
• Documentation: Experience with markdown and in particular Antora for creating technical documentatioт

NICE TO HAVE

• Previous Healthcare or Medical Device experience
• Experience working with Healthcare Data, including HL7v2, FHIR and DICOM
• FHIR and/or HL7 Certifications
• Building software classified as Software as a Medical Device (SaMD)
• Understanding of EHR technologies such as EPIC, Cerner, etc…
• Experience implementation enterprise grade cyber security & privacy by design into software products
• Experience working in Digital Health software
• Experience developing global applications
• Strong understanding of SDLC – Waterfall & Agile methodologies
• Software estimation
• Experience leading software development teams onshore and offshore

Job responsibilities

• Develops, documents, and configures systems specifications that conform to defined architecture standards, address business requirements, and processes in the cloud development & engineering.
• Involved in planning of system and development deployment as well as responsible for meeting compliance and security standards.
• API development using AWS services in a scalable, microservices based architecture
• Actively identifies system functionality or performance deficiencies, executes changes to existing systems, and tests functionality of the system to correct deficiencies and maintain more effective data handling, data integrity, conversion, input/output requirements, and storage.
• May document testing and maintenance of system updates, modifications, and configurations.
• May act as a liaison with key technology vendor technologists or other business functions.
• Function Specific: Strategically design technology solutions that meets the needs and goals of the company and its customers/users.
• Leverages platform process expertise to assess if existing standard platform functionality will solve a business problem or customization solution would be required.
• Test the quality of a product and its ability to perform a task or solve a problems.
• Perform basic maintenance and performance optimization procedures in each of the primary operating systems.
• Ability to document detailed technical system specifications based on business system requirements
• Ensures system implementation compliance with global & local regulatory and security standards (i.e. HIPAA, SOCII, ISO27001, etc…)

Project Description

Our Customer is one of the biggest companies on the market of home entertainment consumer electronics devices that strives to provide their clients with high-quality products and services.

Job Description

• 3+ years of developing and bolstering automated QA systems and associated test strategies
• Good coding Python skills
• Experience in developing and supporting testing frameworks, and developing automated test scripts (would be a plus)
• Understanding of Page Object pattern, knowledge of other automation patterns;
• Good working knowledge of at least one Linux/Unix-based platform as well as Windows;
• Experience in QA methodologies, a clear understanding of QA processes and artifacts;
• Experience with Scrum/Agile;
• Good communication and problem-solving skills;
• Excellent written and verbal English communication skills, developed interpersonal skills;
• Highly motivated, energetic, and able to easily switch between assignments. Ready for challenges!

Job Responsibilities

Working with the solid automation test framework and infrastructure;
Developing new and updating existing automation scripts;
Code review;
Debugging issues and creating bug reports;
Documentation creation;
Communication with international teams (US, UK)
Manual work: about 20%

Department/Project Description

Our Client is the leader of the US Broadcasting Market and one of the biggest companies on that is providing Broadcasting Media Entertainment to users on OTT.

Job Description

• 3+ years of experience in Python
• 3+ years of hands-on experience with automation systems
• 1+ years of experience in some web framework (Fast API + React)
• Database development (MySQL, PostgreSQL, SQLAlchemy, Alembic, etc)
• Has exceptional skills in problem-solving and technical troubleshooting skills

• Not limited to other tools experience, but we require desire and ability to learn new tools:

  CI/CD pipelines on both GitLab and Jenkins
  Observability (Grafana, Prometheus, Otel, etc)
  Automation Framework (pytest/unittest, playwright/cypress/selenium)
  Server administration (Linux, SSH, Docker, Kubernetes, etc)
  Cloud services (AWS, GCP, Azure)
  AI tooling in day-to-day work to boost self-productivity (IDE assistants)
  AI tools implementation, integration into existing services to boost user's productivity (Embedding, Vector Database, LangChain, etc)

Job Responsibilities

• Build innovative features for next generation tracking solution
• Determine the strategic tactical direction of the front-end architecture
• Participate in development process, including scoping, technical design, estimation effort, coding, testing, debugging, code reviews, maintenance and support
• Collaborate with program managers, marketing, designers, software engineers in tests to build and enhance the UI
  Innovate and create the best user experience online

Ever wanted to take full ownership of a backend and have a real impact on how the product is built?

Where you're not just implementing tickets, but making architectural decisions, thinking about scalability, and building systems that can support a growing product?

Where you can work closely with the founder, influence technical direction, and eventually help lead another backend engineer?

If you enjoy building production-grade backend systems, solving architectural challenges, and taking ownership beyond your individual tasks - we'd love to talk.
 

About the Company

Our client is a technology startup building a LinkedIn-based sales technology platform designed to help businesses improve and automate their sales processes.

The platform is built as a multi-tenant system and combines modern cloud infrastructure with AI-powered functionality, including integrations with Google's Gemini models.

It's a product-focused environment where engineering decisions have a direct impact on the platform and its ability to scale.

The Role

We're looking for a Senior Backend Engineer who will take full ownership of the backend and effectively act as the technical lead for this area.

You'll be responsible for designing and building scalable backend systems, making architectural decisions, and ensuring the platform remains reliable as it grows.

You'll work closely with the founder, who has a strong technical background, so this role requires genuine engineering depth and the ability to explain and defend technical decisions.

As the team grows, you'll also help guide and collaborate with another backend developer.

What You'll Do

Backend & Architecture 

• Design, build, and maintain backend services using Python and FastAPI
• Develop scalable APIs and business logic for a production B2B SaaS platform
• Design and optimize PostgreSQL databases, data models, migrations, indexes, and queries
• Make architectural decisions around scalability, reliability, performance, and maintainability
• Take ownership of backend features from design and implementation through deployment and production

Multi-Tenant & Production Systems

• Build and maintain multi-tenant production systems with strong customer data isolation
• Design systems that reliably support multiple customers at scale
• Build robust background jobs with safe handling of retries, duplicates, and partial failures
• Work with cloud infrastructure and production environments
• Monitor, troubleshoot, and improve system performance and reliability
• Handle production incidents, deployments, and third-party service limitations

AI & Agentic Workflows

• Build, maintain, and improve customer-facing agentic workflows
• Work with AI-powered features as part of a larger production system
• Design reliable workflows around AI capabilities, data, business logic, and external services
• Apply engineering judgment to make AI-powered features reliable, predictable, and production-ready

Integrations & Data

• Build and maintain integrations with third-party APIs and data providers
• Work with OAuth, webhooks, rate limits, and external service dependencies
• Develop features across signals, campaigns, data enrichment, integrations, and billing
• Design systems that handle external failures and changing third-party constraints gracefully

Production Ownership

• Own backend systems in production and take responsibility for their reliability
• Investigate and resolve performance, data, and production issues
• Work with monitoring, deployments, and infrastructure to keep systems healthy
• Help investigate customer issues that require engineering involvement
• Take technical problems from investigation through implementation and production

Full-Stack & Product Development

• Work primarily on the backend while contributing to features across the product when needed
• Build and ship Next.js / TypeScript screens when a feature requires end-to-end development
• Collaborate across the product to understand how backend systems connect to the user experience
• Work directly with the founder on product and technical decisions

Ownership & Collaboration

• Take ownership of technical problems and drive them to resolution
• Work independently in a fast-moving startup environment
• Contribute to technical decisions, engineering standards, and system design
• Balance speed of delivery with long-term reliability and maintainability
• Communicate clearly with the founder and take responsibility for the systems you build
   

What You Bring

• 5+ years of experience building and running backend systems in production.
• Strong Python experience and experience building asynchronous services. Our backend is built with FastAPI.
• Strong PostgreSQL knowledge, including data modeling, indexes, migrations, and query optimization.
• Experience with Redis and background processing.
• Hands-on cloud and infrastructure experience - you've managed environments and debugged live production systems.
• Real experience with production ownership, including incidents, performance issues, deployments, and data problems.
• Strong understanding of failure handling - duplicate events, retries, partial failures, outages, and unreliable third-party services.
• Experience working with multi-tenant systems or similar data-isolation requirements.
• Enough frontend experience to work comfortably in a Next.js / TypeScript codebase.
• Good spoken and written English.
• Comfortable working independently and taking ownership of problems from idea to production.
   

Nice to Have

• Experience with SaaS or sales technology platforms
• Experience with AI/LLM integrations, particularly Google Gemini
• Experience designing multi-tenant architectures from the ground up
• Previous experience acting as a technical lead or owning a backend domain independently
• Experience mentoring or guiding other developers
• Startup experience

• Frontend experience with modern JavaScript/TypeScript frameworks

   

What You Get

• Full Backend Ownership: You won't be just another backend developer - you'll own the backend architecture and technical direction.
• Direct Technical Influence: Work closely with a technical founder and have a real voice in architectural and engineering decisions.
• Product Ownership: See your technical decisions directly influence a growing product and its users.
• Modern Technology: Work with Python, PostgreSQL, cloud infrastructure, multi-tenant architecture, and AI-powered functionality.
• Technical Growth: As the team grows, you'll have the opportunity to take on more technical leadership and guide other engineers.

• Startup Environment: Fast-moving, direct, and focused on building rather than unnecessary processes and hierarchy.

   

Interested?

If you're a strong Python engineer who enjoys owning backend architecture, solving complex production problems, and building products from the ground up, we'd love to hear from you.

StairwaySoft is an Israeli-Ukrainian engineering provider of custom software solutions for SMBs and startups. We’re looking for a Senior Backend Engineer to join a product team building a compliance and business verification platform for financial institutions and fintech companies.

The product helps regulated businesses verify companies, process business data, and automate compliance workflows using real-time data and AI-driven automation. The platform operates in a security-sensitive environment where reliability, performance, and data quality are critical.
 

Responsibilities:

• Design and develop customer-facing REST APIs and supporting documentation
• Build and own backend services from architecture through implementation and production support
• Develop secure and reliable data ingestion and processing pipelines
• Build scraping and parsing components for collecting and structuring external data
• Design backend systems with scalability, resilience, and performance in mind
• Work with asynchronous processing, queues, pub/sub, retries, idempotency, and eventual consistency
• Monitor how features perform in production and improve them based on real usage and customer feedback
• Contribute to engineering standards, technical decisions, and development practices
• Work closely with product and other stakeholders to understand problems and deliver practical solutions

Requirements:

• 5+ years of commercial backend engineering experience
• 3+ years of experience with Python, or strong experience with a similar backend language and willingness to work primarily in Python
• Strong experience designing and maintaining REST APIs
• Experience owning backend systems end-to-end in production
• Good understanding of distributed systems and asynchronous processing
• Strong experience with relational databases such as PostgreSQL or MySQL
• Solid knowledge of data modelling, indexing, query optimization, and schema evolution
• Experience working with cloud environments such as GCP, AWS, or Azure
• Experience with CI/CD and production deployments
• Strong product mindset and ability to understand the business problem behind a technical task
• Upper-Intermediate English proficiency

Would be a strong advantage:

• Experience building web scrapers at scale
• Experience in fintech, KYC/AML, fraud, compliance, or other regulated domains
• Experience with high-throughput data pipelines or stream processing
• Experience with Kafka, Pub/Sub, Dataflow, or Flink
• Experience with Rust, Go, or C++ for performance-critical components

ITKingdom is an online programming school for kids ages 8–18. We’re looking for a Programming Teacher to join our team.

You’ll teach one-on-one online lessons in English and help kids learn coding through fun, practical projects.

You don’t need to be an experienced teacher or an expert in every technology. We’re happy to consider beginner teachers, recent graduates, and people just starting their teaching journey.

💎 What You’ll Get

• Ready-to-go students — no need to find your own clients.
• Flexible schedule — work part-time or full-time.
• Ready-made lesson materials — you don’t have to create every lesson from scratch.
• Training and guidance — we’ll help you get familiar with our programs and teaching materials.
• Support from a methodologist and team lead whenever you need it.
• Professional development — workshops, knowledge sharing, and opportunities to grow as a teacher.
• Reliable payments — twice a month.

• Long-term work with a supportive team.

   

🎯 Who We’re Looking For

This role can be a great fit if you:

• Have English at B2 level or higher.
• Have some programming knowledge or hands-on experience.
• Have worked with or studied Roblox Studio, Minecraft, Unity, C#, Python, or another programming/creative technology.
• Are interested in learning new tools and technologies.
• Enjoy working with kids and can explain technical concepts in a simple, clear way.
• Are responsible, patient, and reliable.
• Speak Ukrainian.

• Are open to feedback and willing to keep learning.

   

🌱 No Teaching Experience? That’s Okay!

We’d love to hear from beginner teachers too.

You may be a good fit if you’re:

• a recent university graduate in IT, programming, computer science, game development, or a related field;
• a junior developer who would like to try teaching;
• a student with a good understanding of programming;
• someone who has experience with coding as a hobby or personal projects;
• already teaching informally and would like to gain professional teaching experience.

You don’t need to know all the technologies listed above. If you have a solid basic understanding of programming and enjoy working with kids, we’ll help you learn what you need for the role.

🖥️ What You’ll Need

• Computer or laptop
• Camera
• Stable internet connection

🕒 Schedule

Our students are in Ukraine, the US, and Canada, so lesson times vary.

Kyiv time:

• Weekdays: 5:00 PM–2:00 AM
• Saturday & Sunday: 11:00 AM–00:00 AM

You can choose the hours that work best for you within these time slots.

🚀 Sound Like You?

If you enjoy coding, technology, or game development and would like to share your knowledge with kids, we’d love to hear from you!

Whether you’re an experienced teacher or just starting out, you’re welcome to apply.

Keymakr is a leading provider of high-quality data annotation services for machine learning and artificial intelligence applications. We specialize in delivering accurate and scalable annotation solutions that empower businesses to develop cutting-edge AI models. Our team is dedicated to excellence, innovation, and customer satisfaction.

We are looking for a motivated Junior Python Software Engineer to help build, maintain, and improve internal tools and services. This role offers a great opportunity to grow your technical skills while contributing to real-world projects and automation processes.

Technical Skills:

• 2+ years of experience in Software development  
• 1+ years of practical experience with Python.
• Knowledge of RESTful API design and implementation.
• Experience in scripting and automating workflows, including working with APIs for task automation.
• Understanding of software design principles, particularly SOLID.
• Basic knowledge of Linux systems and familiarity with the Linux command line.
• Proficiency with version control systems (e.g., Git, GitHub, Bitbucket).
• Practical experience with web frameworks like Flask, Django, or FastAPI.
• Familiarity with Celery, Redis, and RabbitMQ.
• Hands-on experience with containerization tools like Docker.
• Skilled in writing unit and integration tests.
• Knowledge of cloud platforms (e.g., AWS, Azure, GCP)

Problem-Solving Skills:

• Strong analytical thinking and problem-solving capabilities.
• Ability to debug, troubleshoot, and optimize code effectively.

Nice-to-Have Skills:

• Basic understanding of frontend technologies (HTML, CSS, JavaScript).
• English at an intermediate level or higher (to read and understand technical documentation).
• Familiarity with Agile development methodologies.
• Understanding of CI/CD pipelines and DevOps practices.

Responsibilities:

• Developing and maintaining tools and applications for the company’s infrastructure.
• Designing, supporting, and maintaining internal services.
• Transforming and storing data in various formats (e.g., JSON, XML, CSV).
• Automating workflows using APIs.
• Researching, configuring, and integrating third-party software into company processes.
• Providing general IT support and troubleshooting.

We are looking for a Strong Middle / Senior Python Engineer for a 3-month contract, with a possible extension, to build a verifiable proof module for a humanitarian transparency platform. You will deliver a self-contained backend module that turns delivery attestations into immutable, signed data bundles and reliably exchanges them with an external anchoring service.


🧙‍♂️In This Role You Will

• Build a standalone Django app behind a feature flag, with its own models, migrations, Celery tasks, and routes.
• Implement idempotent, transactional review workflows (verify / withhold / reject / amend) with strict data validation.
• Produce canonical, hashed, and signed data bundles (JSON canonicalization, SHA-256) that conform byte-exactly to agreed test vectors.
• Design reliable outbound delivery using a transactional outbox, Celery workers/beat, retries, and replay.
• Implement signed webhooks (HMAC-SHA256, Standard Webhooks) and runtime secret rotation without redeployment.
• Build machine-to-machine APIs for bundle retrieval, anchor write-back, and public key publication.
• Migrate free-text location data to the official administrative territorial registry (KATOTTG) with versioning.
• Set up a staging harness with synthetic fixtures and run end-to-end dry runs with the integration partner.
• Cover the module with tests, contract conformance checks, and security hardening, and document your work.
  
   

🎯 You May Be Interested If

• You like well-scoped, high-impact work with a clear deadline and a production release at the end.
• You care about correctness, data integrity, and security, not just "it works".
• You're comfortable working autonomously and communicating clearly with an external integration partner.
• You enjoy a small, remote, supportive team.
  
   

🍰 Role Requirements

• 3+ years of backend development with Python and Django.
• Hands-on experience with Celery (workers, beat, retries) and asynchronous/background processing.
• Solid understanding of idempotency, database transactions, and reliable delivery patterns (e.g. transactional outbox).
• Experience designing REST APIs and machine-to-machine integrations, including webhooks and request signing (HMAC).
• Practical knowledge of applied cryptography basics: hashing, digital signatures, secrets and key rotation.
• Strong PostgreSQL skills, including schema design and data migrations.
• Docker-based development, Git, and basic Bash.
• Experience with a cloud platform (Azure, AWS, or GCP).
• English at B1 or higher.
   

Nice to have:

• Familiarity with RFC 8785 (JSON Canonicalization Scheme) or the Standard Webhooks specification.
• Experience with administrative/geographic code registries (e.g. KATOTTG, ISO 3166-2).
• Experience with secret stores / key management services (e.g. Azure Key Vault, AWS KMS, HashiCorp Vault).
  
   

💻 Working Conditions

• Contract: 3 months, full-time load, with possible extension.
• This is a fully remote position with the entire team across Ukraine.
• Flexible working hours; the team agrees deadlines together, with a focus on delivering commitments on time.

Company Description

Our customer is a leading Swedish telecommunications company, recognized for delivering innovative large-scale technology solutions across complex infrastructure environments. Sweden’s telecom sector is known for its advanced networks, high-speed connectivity, and pioneering role in 5G development. The company operates internationally, serving millions of users and partnering with global technology leaders to drive digital transformation.

Job Description

You will join one of two AI initiatives: ChatCPI, an LLM-powered assistant for intelligent search and question answering over large technical documentation, or a Knowledge Graph Platform focused on structuring and connecting enterprise information for AI-driven use cases.

What you will do

• Design and implement LLM-based features and RAG pipelines, from data ingestion to answer generation
• Build and optimize retrieval using vector embeddings and hybrid (semantic + keyword) search
• Process, clean and structure source information to improve the accuracy and relevance of AI output
• Evaluate model quality, experiment with new approaches and bring proven solutions into production

• Work closely with the team to integrate AI components into the wider platform 

   

What we expect

• 3+ years of experience on AI/ML projects
• Strong Python skills and hands-on implementation experience
• Solid understanding of the modern AI stack, LLMs and current industry developments
• Practical experience with RAG architecture, vector embeddings and hybrid search

• Experience with information processing aimed at improving AI quality (data preparation, chunking, metadata enrichment, relevance tuning)

   

Ways of working

• Comfortable owning a change end-to-end: design, implement, test, and deploy.
• Can work independently but communicates proactively when blocked or when scope/tradeoffs need a decision
• Experience working in an Agile team will be considered a plus

• Soft skills: since this is a fully remote position, we expect a highly proactive attitude - showing results, actively participating in all initiatives, etc

   

Nice to have

• Experience with knowledge graphs or graph databases
• Background in the telecom domain

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

Project: Portfolio management systems for a US financial institution. 

What you will be doing:  

As part of the team, you will be participating in a client project focused on portfolio management solutions. You will help develop new software features, as well as support and maintain existing ones. You will be writing scalable and fault-tolerant code, debugging programs, and integrating applications with third-party web services. You will be collaborating closely with the client and product manager to understand the system’s functional and non-functional requirements, and contribute to code quality through unit testing, integration testing, code review, and system design using Python to build robust software that aligns with the client’s business needs. 

What we are looking for:  

• A strong programming background with Python and OOP skills.
• Deep understanding of algorithms and data structures.
• Experience building backend systems and working with REST APIs.
• Proficiency with SQL databases.
• Experience with FastAPI and Linux environments.
• Strong problem-solving skills and ability to collaborate effectively in a team environment.
• Upper-Intermediate level of English or above. 
• Experience with AWS is a plus. 

What we offer: 

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

We are looking for a Senior Python Developer who is ready to scale and grow with us.
 

If you’re passionate about clean code, scalable backend architecture, and excited to build something impactful, we’d love to meet you!
 

What will you do?
 

• Contribute to the full backend lifecycle, from architecture design to production deployment;
• Design, develop, and maintain RESTful APIs using Python, Flask, FastAPI, and SQLAlchemy;
• Implement microservices architecture with message brokers and API gateways;
• Implement authentication and authorization with industry-standard encryption and access control;
• Optimize backend services for performance and efficiency, identifying bottlenecks and implementing solutions to improve response times and resource utilization;
• Implement complex algorithms and data structures to handle data processing, operations research (OR), recommendation systems, and optimization problems;
• Deploy and scale services on GCP (Cloud Functions, Cloud Run, Kubernetes); containerize with Docker;
• Design and optimize database schemas using PostgreSQL/MySQL and integrate Pandas/NumPy for analytics and ML;
• Document API specifications using OpenAPI (formerly Swagger);
• Collaborate with frontend, data science, and DevOps teams to align backend with product goals;
• Maintain engineering standards through code reviews, documentation, and knowledge sharing.
 

Requirements:

• 7+ years of commercial experience in backend development with Python;
• Upper-Intermediate English (B2 or C1) for comfortable verbal team communication.
• Strong hands-on experience with Python, Flask, and SQLAlchemy, Pandas, NumPy;
• Proficiency with Docker and Kubernetes;
• Expertise in software architecture and design patterns, with a proven track record of solving complex technical and performance problems;
• Strong understanding of algorithmic complexity, optimization techniques, and best practices for designing efficient algorithms to solve complex problems;
• Proven ability to handle complex, loosely defined business logic and structure intricate processes cleanly;
• Solid grasp of software architecture and design patterns, with a track record of solving complex technical and performance problems;
• Autonomous in architectural decision-making, comfortable owning hard problems end to end;
• Bonus points if you’ve worked in medical or sports domains.

Why Solid Software?
 

• We support Ukraine;
• A wonderful team of enthusiasts and like-minded people;
• Atmosphere of comfortable work & life balance;
• Flexible schedule and work-from-home opportunity;
• Opportunity to work on projects with different directions (web, mobile, tablet, watch, desktop);
• MacBook Pro and great tech;
• Decent compensation;
• Lack of bureaucracy;
• Compensation for professional events, sports activities;
• Corporate online parties and fun team-buildings;
• Anniversary and birthday presents.
 

Professional growth:
 

• Onboarding and mentorship program with a dedicated onboarding guide built by our team;
• Internal Career Path program from Developer to Architect that consists of knowledge areas for IT specialists, books, training sessions, and work activities;
• Corporate library with the best programming books (+ an ability to order a particular book if we don’t have it);
• Professional and constant feedback.
 

We truly value the unique talents and skills that each individual brings to our company. As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team.
 

Apply now and help us shape what comes next!