Jobs Python

About Us

At True Path Leads , we're building the next generation of performance marketing infrastructure. Our proprietary lead management platform operates at scale, processing millions of pings and leads in real time. We are expanding rapidly and looking for a highly capable Senior Backend Engineer to help design, build, and scale our core lead processing engine and supporting services.

Tech Stack

Python 3 (FastAPI) · SQL (MySQL, ClickHouse) · Kafka · AWS (EKS)

What You'll Do

• Design, build, and scale a high-load, mission-critical lead processing system in Python.
• Own architecture and implementation of backend services and APIs following Clean Architecture and SOLID principles.
• Develop real-time data pipelines using Kafka and high-performance databases (PerconaDB, ClickHouse).
• Optimize system performance, latency, and throughput under heavy load.
• Collaborate with product, engineering, and leadership to define and deliver features.
• Deploy, operate, and monitor services in AWS (EKS) using modern DevOps practices.
• Contribute to system reliability, observability, and fault tolerance.

What We're Looking For

• 10+ years of backend development experience (Python preferred).
• Proven experience building and scaling high-load / distributed systems.
• Strong SQL expertise (MySQL, ClickHouse) — query optimization, indexing, data modeling.
• Solid understanding of Kafka and event-driven architectures.
• Experience designing and maintaining REST APIs and asynchronous systems.
• Deep understanding of concurrency, networking, and performance bottlenecks.
• Hands-on experience with AWS (EKS, S3, Lambda, networking, etc.).
• Experience with observability: metrics, logging, tracing (Prometheus, VictoriaMetrics, etc.).
• Ability to take ownership and drive technical decisions.

Nice to Have

• Experience in performance marketing, lead generation, or affiliate platforms.
• Experience with real-time bidding systems or ad-tech.
• Familiarity with Kubernetes internals and production-grade deployments.

What You'll Get

• Fully remote position with flexible working hours.
• High ownership and direct impact on architecture and product direction.
• Work on systems operating at significant scale.
• Fast-paced startup environment with experienced leadership.
• Competitive compensation based on experience and skill set.
• Clear growth path toward Team Lead or Software Architect roles.

Full-time · 6–8 months · English B2+

About the role

We're an AI-first SaaS startup modernizing how professional services firms handle their core work — documents, search, and matter management. Our software automates workflows that used to require hours of manual effort.

We're looking for a senior engineer who can own large chunks of product end-to-end: design the architecture, build it, ship it to production, and keep it running. No hand-holding, no waiting for specs to be handed down.

What you'll do

• Take full technical ownership of complex features — from architecture to deployment
• Build and ship AI-powered workflows: LLM agents, document processing pipelines, tool calling
• Design backend systems that hold up under load: APIs, async workers, queues, third-party integrations
• Debug production issues across the full stack using traces and logs
• Use AI coding tools (Claude Code, Cursor, Codex) as a daily part of your workflow — not occasionally, but habitually

Requirements

• 7+ years of professional software engineering
• Strong Python with FastAPI (or similar) and TypeScript with React
• Advanced SQL and schema design — PostgreSQL preferred
• Cloud infrastructure experience: Azure, AWS, or GCP; Docker; CI/CD pipelines
• Deep understanding of async system design: reliable APIs, workers, queues
• Production experience with LLM features, agents, prompt workflows, and RAG/search systems
• Hands-on with observability tools: Datadog, PostHog, Langfuse, or OpenTelemetry
• Track record of autonomous, end-to-end delivery — you've shipped production systems solo before

Stack

Python · FastAPI · TypeScript · React · PostgreSQL · Docker · Azure/AWS/GCP · OpenAI/Anthropic APIs · Langfuse · Datadog

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

What will you be doing?

As part of the team, you will be participating in a project with a large US bank. You will be helping build new software features, support, and maintain existing ones. You will be writing scalable and fault-tolerant code, debugging programs, and integrating applications with internal and third-party services. You will be collaborating closely with the product team to understand the system’s functional and non-functional requirements and contribute to code quality through unit testing, integration testing, code reviews, and system design using Python to build robust software that aligns with business needs.

What are we looking for?

• 2+ years of commercial experience with Python and good understanding of OOP principles.
• Good knowledge of data structures and algorithms.
• Experience with FastAPI or other Python web frameworks.
• Experience working with SQL databases.
• Strong problem-solving skills and ability to collaborate effectively in a team environment.
• Bachelor’s degree or higher.

Nice to have: 

• Background in quantitative finance, mathematics, or risk modeling.

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 Software Engineer for our client, a US-based wellness-tech startup building an AI-powered platform for salons and wellness centers.

The product combines machine learning, recommendation systems, diagnostics, eCommerce, and operational tooling into a single ecosystem used by real businesses and customers.

The platform analyzes customer data and questionnaire inputs to generate personalized treatment and product recommendations through a custom AI service built with Python, ML models, and Elasticsearch. The engineering team is continuously improving recommendation accuracy, integrating new AI capabilities, and scaling the infrastructure as the product grows.

This is an opportunity to join a small, product-focused team where engineering has direct impact on the business and where developers are expected to contribute across the entire platform, from AI integrations and backend architecture to cloud infrastructure and customer-facing features.

Responsibilities

* Maintain and improve a Python-based AI recommendation service

* Integrate and improve ML/AI models in production environments

* Improve Elasticsearch-based recommendation and search logic

* Continuously improve recommendation accuracy based on business requirements and user data

* Develop backend services using Node.js / TypeScript

* Build frontend functionality using React

* Manage AWS infrastructure and deployment workflows

* Improve CI/CD and overall platform reliability

* Work on integrations with external systems including Shopify

* Participate in architecture decisions and long-term technical planning

Tech Stack

Python, TensorFlow (or similar ML frameworks), Elasticsearch / OpenSearch, TypeScript, Node.js / NestJS, React, AWS, PostgreSQL, Redis, Docker, GitHub Actions / CI/CD.

Requirements

* Strong commercial experience with Python

* Experience working with TensorFlow or similar machine learning frameworks

* Experience integrating AI/ML models into production systems

* Strong experience with Elasticsearch, OpenSearch, or Solr

* Strong experience with TypeScript and Node.js

* Experience building frontend applications with React

* Strong AWS experience

* Experience with Docker, Linux, and CI/CD workflows

* Strong understanding of APIs and backend architecture

* Experience working in startup or product-focused environments

* Advanced English communication skills

Nice to Have

* Experience with recommendation engines or AI-powered personalization systems

* Shopify integration experience

* Experience with Terraform, CloudFormation, or AWS CDK

* Native Android development experience (Kotlin preferred)

* Experience using AI coding assistants such as GitHub Copilot, Cursor, Claude Code, etc.

What They’re Looking For

The company is looking for a long-term engineering hire who can take ownership of the product and help lead the technical development of the platform as the company scales.

The immediate priorities are heavily focused on the AI recommendation service, ML integrations, and Elasticsearch-based recommendation infrastructure. Over time, the engineer will also contribute across backend development, infrastructure, integrations, and overall platform evolution.

Job Description

• Strong Python: 4+ years of professional experience in Python development
• 5 years experience in Object Oriented development 
• Proficiency with Python and common libraries (e.g., requests, asyncio, SQLAlchemy, FastAPI/Django/Flask depending on the stack)
• Passion for open source development and a community mindset
• Proficiency with Git workflows (forking, pull requests, code reviews)
• Understanding of open‑source licenses and contribution etiquette
• Understanding of Kubernetes fundamentals (pods, deployments, services, config maps, secrets) and familiarity with containerization (Docker)
• Strong SQL querying and optimization skills and familiarity with MariaDB‑specific features (e.g., storage engines, replication options)
• Background in performance optimization or distributed systems
• Knowledge of industry standard source control systems
• Proficiency in Team Foundation Server and Visual Studio is preferred
• Experience with industry standard communication protocols; REST. JSON, XML, and SOAP
• Experience with Agile software development methodologies
• Azure experience is preferred
• Good understanding of SDLC process, version control, code review, continuous integration and automated deployment tools.
• Experience working on large-scale, production-grade projects.
• Strong background with CI/CD methodology.
• B.Sc in Computer Science is an advantage.
• Advanced level of English

Job Responsibilities

• You will be part of a team responsible for building the Royalty management solution 
• Participate in all phases of managing the Application Lifecycle Management: requirements analysis, development, testing, and implementation. Participate in technical logic and design discussions
• Investigate and resolve bugs, performance issues, and security concerns
• Create, maintain, and present technical documentation to different audiences and levels
• Perform resource, technical and risk assessments
• Work with other development, architecture, and product development teams to ensure delivery of product
• Support release processes, versioning, and dependency management
• Engage constructively with contributors for clarification and/or improvements
• Assist in the timely completion of assigned development projects
• Prepare required documentation, including project plans, software program, and user documentation
• Assist in the estimation of time for development projects
• Being the main contact point for the US based client team
• Provide technical guideline to the local team
• Interview new candidates to join the team
  
   

Department/Project Description

        Our client is a performance rights organization in the United States. It collects blanket license fees from businesses that use music, entitling those businesses to play or sync any songs from the client's repertoire of over 22.4 million musical works. On a regular basis, the client distributes the money to songwriters, composers, and music publishers as royalties to those members whose works have been performed

We are looking for a Python /C++ Software Engineer to join our autonomous systems control team.

This role is a strong fit for an engineer who is comfortable with mathematics, and is interested in growing into control engineering for autonomous systems.

We consider engineers at Middle+ level.

Responsibilities:

• Develop and maintain control and decision-making algorithms for autonomous guidance
• Perform testing in simulation environment and in real life
• Analyze system behavior and logs
• Navigate through research papers and algorithm descriptions in field of autonomous systems and apply them in practice

Required qualifications:

• 3+ years of software development experience in ML, robotics, simulation, gamedev or other algorithmically intensive domains
• Strong programming skills in Python and C++
• Hands on experience with concurrent and parallel programming
• Mathematical background, including: linear algebra (vectors and matrices, coordinat systems and transformations) calculus (derivatives and integrals)

Would be an advantage:

• Control theory fundamentals
• Olympiad programming
• Signal processing
• Machine Learning
• Mavlink
• Simulation tools (Gazebo, AirSim)
• ITL, HITL testing
• X4, Betaflight, ArduPilot

What We Offer:

• Opportunity to work on cutting-edge embedded products
• Competitive salary and benefits
• Flexible working model (remote / hybrid / onsite)
• Professional growth and learning opportunities
• Collaborative and engineering-focused culture

We invite a Senior Software Engineer I to join our team and help develop new components within a large-scale fintech data platform in the private markets domain. In this role, you'll contribute to the development of blockchain-integrated platform components while working across a complex, distributed system alongside experienced engineers.

🟩 What's in it for you:

• Work on a new component within an established fintech platform with 20+ internal services and 15+ external integrations
• Build production software integrating modern AI technologies and blockchain systems
• Own end-to-end development of complex backend features while collaborating with senior engineers and architects

• Gain exposure to large-scale distributed systems, event-driven architectures, and cutting-edge AI tooling

   

✅ Is that you?

• 5+ years of backend software development experience, with Python as the primary language
• Strong software engineering background in Node.js with TypeScript, with the ability and motivation to work deeply in Python services
• Experience building production AI/LLM applications, including agent-based workflows and orchestration patterns
• Good understanding of AI frameworks and practical trade-offs (experience with LangGraph is a plus)
• Experience developing and maintaining microservices with multiple internal and external integrations
• Strong experience with Kubernetes, Docker, and containerized deployments
• Experience with Infrastructure as Code (Terraform or equivalent)
• Experience with event-driven architectures
• Strong experience with PostgreSQL and practical knowledge of Redis, MongoDB, and Weaviate
• Solid understanding of software architecture and distributed systems
• Strong commitment to clean, maintainable code, automated testing, and engineering best practices
• Experience producing technical documentation (C4, UML, or similar)
• Experience owning features from design through production, collaborating with cross-functional teams
• Hands-on experience with AI-assisted development tools (such as Cursor and Claude Code)
• Strong communication, collaboration, analytical thinking, and problem-solving skills

• Comfortable working in fast-paced environments with evolving requirements

   

⭐ Nice to have:

• Experience with LangChain, MCP tooling, and agent-based integration architectures
• Familiarity with Retrieval-Augmented Generation (RAG) and vector databases
• Experience building AI agents for automation, validation, or data enrichment
• Experience with AWS and/or Azure
• Exposure to cloud-agnostic or private cloud architectures
• Background in fintech, data platforms, or private markets
• Basic understanding of blockchain concepts (L1/L2) and integration through APIs or abstraction layers

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 React and 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. 

About the Project

AI Interview Platform (client name undisclosed) — a leading technical interviewing platform used by fast-growing startups and large enterprises worldwide. It pairs experienced engineers with standardized interview frameworks to enable fair, high-signal, and scalable hiring for software engineers globally.

What You'll Do

• Conduct live technical interviews with software engineering candidates worldwide via the platform.
• Assess coding skills, problem-solving abilities, technical knowledge, and communication while creating a professional and inclusive candidate experience.
• Provide structured, objective feedback based on established evaluation criteria to reduce bias and improve hiring quality.

• Collaborate with the client’s team to test, refine, and improve interview content, processes, and platform features.

   

Must Have

• 4+ years of professional experience as a Software Engineer/Developer.
• Strong Python proficiency
• Working knowledge of frontend technologies (JavaScript, React, or similar).
• Solid understanding of algorithms, data structures, and software engineering fundamentals.
• Excellent English communication skills (spoken and written).
• Professional demeanor, ability to deliver objective assessments, and reliable setup (webcam, microphone, stable internet).

Nice to Have

• Prior experience conducting technical interviews (DS&A, system design).
• Mentoring, coaching, or technical leadership experience.
• Interest in talent assessment, interviewing best practices, or inclusive hiring.

Location: EU / Remote (Ukraine)

Type: Freelance full-time (first 3 months), with option to go part-time later.

About the role:

Our client is a Netherlands-based product company developing an intelligent platform that automates logistics and freight-forwarding processes through AI-driven solutions.

Responsibilities:

• Design, develop, and enhance AI agents that automate logistics workflows
• Expand the capabilities of intelligent bots for customer support and commercial proposal generation
• Improve model reliability and reduce LLM hallucinations
• Build dashboards for both customers and internal teams

• Optimize and scale existing systems through refactoring and performance improvements

   

Requirements:

• 5+ years experience with Python/AI
• Strong experience with Python and Django/FastAPI
• Solid understanding of OAuth 2.0, SSO, and REST APIs
• Experience with PostgreSQL (SQLAlchemy is a plus)
• Experience with Redis/RabbitMQ and Celery
• Hands-on experience with LLM-related tools and frameworks, such as:
• Ollama
• LlamaIndex
• LangChain / LangGraph
• Tool Calling
• Sentence Transformers
• Experience with:
• Pandas
• NumPy
• scikit-learn
• pytest
• Faker
• Experience working with email systems (parsing, generation, routing)
• Knowledge of prompt engineering or practical experience integrating LLM-based solutions
• Fluent English (spoken and written)

Will be a plus:

• Experience in logistics, freight forwarding, or supply chain domains
• Experience optimizing ML/LLM pipelines
• Knowledge of RAG architectures, FAISS, and Vector Databases
• Strong focus on code quality, maintainability, reusability, and stability
• DevOps experience with CI/CD, Docker, Docker Compose, and Kubernetes
• Hands-on experience with monitoring and observability using the Grafana stack

We are building a digital learning platform for maritime education and training.

Our goal is to create a modern digital university for maritime professionals, combining LMS, certifications, and real-world industry integration.

We are currently at an early stage and working with an openEdX vendor to build and customise the core platform.

We are looking for a Backend Engineer (mid to senior level) to join our early team.

What you’ll work on:

• backend customisation and extension around openEdX 
• integrations (payments, user management, certification, external services) 
• API development and data flows 
• collaboration with the vendor team and internal technical team 

Tech stack / environment:

• Python (Django is a plus) 
• REST APIs 
• SQL databases (PostgreSQL or MySQL) 
• cloud-based environment (Docker is a plus) 

What we’re looking for:

• 3+ years of backend development experience 
• solid understanding of API design and data flows 
• ability to work in an early-stage, evolving environment 

What we offer:

• opportunity to help shape the system from day one 
• flexible collaboration model (part-time initially possible) 
• direct impact on product and technical decisions 
• early-stage role with real ownership 

If this sounds like something you’d be interested in discussing, please share your CV and feel free to reach out.
Let's connect and text here if you'd like to chat or have any questions!

We are looking for a Middle+/Senior Full-Stack Engineer with strong Python and React experience to join the Insurance product team of a US online media and consumer advisory company.
 

This role requires a highly capable, well-rounded engineer who can work across the full stack, own features end-to-end, and help build scalable, user-facing digital products for a large consumer audience.
 

An AI-first approach is a key focus for this position. We are looking for an engineer who actively uses modern AI-first coding agents in daily engineering workflows to improve development speed, code quality, and product delivery.
 

The ideal candidate combines strong backend engineering skills, solid frontend experience, product-oriented thinking, good communication skills, and a forward-thinking approach to engineering and collaboration.
 

This is a fully remote position; however, candidates should be comfortable working with a schedule that allows for regular overlap until approximately 8–9 PM Ukraine time.
 

About the Client

Our client is a multifaceted US digital media company dedicated to helping citizens, consumers, business leaders, and policy officials make important decisions in their lives.

The company publishes independent reporting, rankings, data journalism, consumer advice, and analytical content that has earned the trust of readers and users for nearly 90 years. It reaches more than 40 million people monthly across multiple digital platforms and verticals, helping audiences make informed decisions in areas such as education, healthcare, finance, insurance, and lifestyle.
 

Industry: Online Media

Location: United States
 

About the Project:

The project is focused on the development and improvement of insurance-related digital products used by consumers to research, compare, and evaluate insurance options.

The Insurance team builds and maintains consumer-facing web products and services with a focus on usability, scalability, performance, and data-driven decision-making.

Engineers work closely with product managers, designers, and other engineering team members to deliver new features, improve user experiences, and support scalable, high-traffic applications.
 

Requirements:

- 6+ years of professional software development experience

- Strong full-stack development experience

- Strong backend development experience with Python

- Strong frontend development experience with React

- Hands-on experience using AI-first coding agents such as Cursor, Claude Code, OpenAI Codex, or similar in daily engineering workflows

- Experience designing and building scalable production systems

- Strong understanding of software architecture and system design

- Experience working with relational databases

- Experience with API-driven architectures and integrations

- Experience with cloud platforms and modern deployment practices

- Ability to own features from requirements through deployment

- Strong problem-solving skills and product-oriented thinking

- Ability to work independently and take ownership of technical solutions

- Strong communication and collaboration skills
 

Will be a plus:

- Experience with TypeScript 

- Experience with Node.js 

- Experience integrating AI capabilities into applications or internal workflows

- Familiarity with LLM-based solutions and AI-powered user experiences

- Experience working in Agile product teams

- Exposure to CI/CD pipelines and DevOps practices

- Experience mentoring junior or mid-level engineers

- Experience in insurance, financial services, media, or highly regulated industries 

- Experience working on high-traffic consumer-facing digital products 

Responsibilities:

- Design, develop, and maintain full-stack applications and services

- Build scalable, maintainable, and high-quality software solutions

- Own features throughout the full software development lifecycle, from requirements to deployment

- Collaborate closely with product managers, designers, engineers, and cross-functional stakeholders

- Participate in architecture, system design, and technical decision-making

- Troubleshoot, optimize, and improve production systems

- Work with relational databases and API-driven architectures

- Leverage AI-first coding agents and workflows to improve engineering efficiency and delivery quality

- Contribute to engineering best practices, team standards, code quality, and technical maturity

- Help create mature, scalable, and user-focused product experiences

- Actively participate in Agile team collaboration, planning, and delivery processes
 

We Offer:

- Fully remote work environment

- Long-term collaboration on a mature US digital product

- Opportunity to work on consumer-facing products used by a large audience

- High level of ownership and direct impact on product quality

- Collaboration with an experienced international product team

- Product-focused environment with transparent communication and practical engineering processes

- Challenging technical tasks across frontend, backend, architecture, and AI-first development workflows

- Professional growth opportunities within a strong digital product ecosystem

- Fast and smooth onboarding

- Open and collaborative working culture

- Dynamic international environment

Who we are

Adaptiq is a technology hub that helps fast-growing product companies build, scale, and support strong R&D teams across different industries.
 

About the Product

We are developing an AI-first maritime intelligence platform that combines multiple global maritime data sources into one operational view. The product creates a digital twin of worldwide maritime activity and uses behavioral analytics, predictive AI models, and advanced data processing to detect risks such as smuggling, illegal fishing, container threats, and other compliance or security issues.

The platform is used by commercial, regulatory, and government customers, operating at global scale and processing millions of events along with terabytes of geospatial data every day. It is built on cloud infrastructure, microservices, and close integration with research and data science prototypes.
 

About the Role

As a Senior Backend Python Engineer, you will join an autonomous team focused on building and scaling agentic, AI-first workflows within a production-grade maritime intelligence platform.

You will be responsible for designing, delivering, and operating backend services that support generative AI agents at scale. The role involves influencing architecture, improving AI-SDLC practices, and helping shape agent-based automation used in real-world defense, regulatory, and enterprise scenarios.
 

Key Responsibilities

• Design and develop scalable Python-based microservices for agentic workflows, data pipelines, and distributed systems.
• Contribute to frontend development with React when needed.
• Integrate generative AI capabilities into production systems, including LLM APIs, RAG pipelines, and autonomous agents.
• Build operational practices and observability for AI components, including monitoring for model drift, hallucinations, and performance metrics.
• Implement and improve AI-SDLC standards, including code reviews, automated testing, CI/CD pipelines, and trace-based quality evaluation.
• Design and maintain infrastructure as code using Terraform, Kubernetes, and AWS services.
• Improve engineering velocity and product quality through automation, tooling, and architecture improvements.
• Mentor engineers on AI frameworks, developer tools, and best practices for high-scale agentic development.
• Work closely with product and research teams to turn user needs into reliable, secure, and scalable backend services.
   

Required Skills and Experience

• 7+ years of professional backend engineering experience.
• At least 2 years of experience building agentic or autonomous AI workflows in production.
• Strong hands-on experience with Python.
• Practical experience with agentic frameworks such as LangChain, LangGraph, DeepAgents, CrewAI, OpenClaw, Hermes, or similar.
• Proven experience designing scalable, event-driven architectures on AWS.
• Experience with messaging systems such as SQS/SNS and SQL/NoSQL databases.
• Strong understanding of GraphQL or REST API design.
• Solid DevOps background, including CI/CD, Kubernetes, and Terraform.
• Experience with production-grade security, monitoring, and incident response for mission-critical systems.
• Strong communication skills, autonomy, ownership, and ability to work in fast-paced, ambiguous environments.
   

Nice to Have

• Experience with React.js or full-stack development.
• Familiarity with vector databases and similarity search for AI applications.
   

Why Us

• 20 vacation days per calendar year, plus official national holidays in the country where you are based.
• Full accounting and legal support in all countries where we operate.
• Fully remote work model.
• Powerful workstation provided.
• Co-working space support if needed.
• Competitive compensation package with annual performance and salary reviews.

Company Description

Are you a seasoned engineer passionate about building scalable, high-performance systems? This Senior-level role offers the opportunity to work remotely with talented teams across Europe, Ukraine, and LATAM.

At Sigma Software, we deliver cutting-edge solutions for global customers, combining technical excellence with a service-minded approach. In this role, you will join a distributed team to architect and evolve an advanced Ads platform, contributing to both innovation and stability.

Why join us? You will work on complex, high-impact systems, collaborate with international experts, and enjoy the freedom to shape architecture and technical patterns that drive long-term success.

CUSTOMER

We partner with a leading company in the AdTech space, delivering high-performance, scalable solutions that empower advertisers to manage campaigns, optimize targeting, and analyze results in real time. The Customer values innovation, reliability, and long-term collaboration, and operates globally with distributed teams in Europe, LATAM, and other regions.

PROJECT

The project focuses on building and evolving core systems for an advanced Ads platform integrated into a product for the interior decor industry. This product enables users to preview and visualize home items before purchase, enhancing shopping experiences both online and in-store.

Job Description

• Design, develop, and maintain APIs and services supporting ad campaign management, targeting, delivery, attribution, and reporting
• Architect scalable, reliable, and high-performance distributed systems
• Optimize systems for high-throughput and low-latency event/data processing
• Drive architectural decisions and establish development patterns
• Collaborate with distributed teams to ensure seamless integration and delivery
• Mentor and guide other engineers, fostering technical excellence

• Ensure code quality, maintainability, and alignment with long-term product goals

   

Qualifications

• At least 5 years of commercial experience in building scalable, high-performance systems
• Hands-on experience with AdTech solutions such as DSP, SSP, ad exchange, prebid, Google Ad Manager, or openRTB
• Strong proficiency in Python, preferably with the Django framework
• Solid knowledge of computer science fundamentals, including data structures, algorithms, and distributed systems
• Good understanding of distributed system architecture with a focus on data availability, reliability, and performance
• Practical experience with Kubernetes, PostgreSQL, and AWS

• Upper-Intermediate level of English

   

WILL BE A PLUS

• Experience with dbt and Redshift

• Familiarity with interior decor industry solutions

   

Additional Information

PERSONAL PROFILE

• Attention to detail and quality
• Excellent communication skills
• Leadership mindset, proactiveness

We are looking for a Python Developer (Strong Middle to Senior) 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:
 

• 4+ 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, including database optimization;
• 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;
• Familiarity with data processing libraries like Pandas and NumPy for advanced analytics and machine learning tasks;
• 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.
 

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!