Source Job

Ireland

  • Design, build, and maintain core features for large-scale Python frameworks and machine learning platforms.
  • Collaborate with internal teams and open-source communities through code reviews, discussions, and contributions.
  • Architect scalable, reliable, and user-friendly software solutions that serve as foundational tools for developers and AI practitioners.

Python JavaScript TypeScript React Open Source

20 jobs similar to Senior Python Software Engineer/Open-Source Contributor

Jobs ranked by similarity.

Ireland

  • Build high-quality, scalable systems while using AI as a co-creator across the software development lifecycle.
  • Own end-to-end engineering initiatives, ensuring delivery readiness, production stability, and smooth execution.
  • Provide technical leadership and drive improvements using modern practices like DORA metrics and flow optimization.

Our partner is a company seeking a Software Craftsperson/Python/AI for a remote role based in Ireland. They emphasize an autonomous, consultative, and impact-driven engineering culture with strong expectations around ownership and technical excellence.

Global Unlimited PTO

  • Design, develop, and maintain application features using Python and React/TypeScript.
  • Contribute to full-stack development including Go and AI-assisted tools.
  • Collaborate with the engineering team to ship production-quality code quickly.

CIQ builds enterprise infrastructure for high-performance computing, AI, and cloud-native orchestration. They are a company of builders and open source practitioners with a collaborative culture.

$165,000–$190,000/yr
US 14w maternity 8w paternity

  • Deliver impactful full-stack features that benefit Medicare brokers and beneficiaries.
  • Collaborate cross-functionally to provide constructive feedback on design mockups and product scope.
  • Identify and manage technical debt while building robust architectures to support platform scalability.

We are building healthcare tech for a system that desperately needs it, focusing on empowering independent Medicare advisors. We are a fast-growing startup with a talent-dense team, backed by notable investors, and recognized as one of Inc. Magazine's Best Workplaces of 2025.

US

  • Lead development of innovative systems using emerging technologies, focusing on AI infrastructure and full-stack web applications.
  • Build prototypes, integrate APIs, deploy to cloud platforms (AWS, Azure, GCP), and ensure cross-device compatibility.
  • Maintain high code quality through automated tests, documentation, and collaboration within a multidisciplinary team.

NBCUniversal is a leading media and entertainment company creating world-class content across film, television, and streaming, with global theme parks and news brands like NBC and Peacock. As a subsidiary of Comcast Corporation, it champions an inclusive culture and a workforce of thousands dedicated to delivering diverse content and community impact.

$128,700–$153,400/yr
US 6w PTO

  • Influence: Makes an impact on the whole team, not just on specific parts of it.
  • Technology: Researches, creates proofs of concept, and introduces new technologies.
  • System: Owns the technical design, development, maintenance, and operational responsibilities for one or more projects or products.
  • People: Mentors others to accelerate their career-growth and encourages them to participate.

Bellese is a mission-driven Digital Services Company pioneering innovative technology solutions in civic healthcare. With a focus on service design, the company aims to improve public health outcomes and includes a team dedicated to the QMARS program at CMS.

$112,420–$128,480/yr
Canada 4w PTO

  • Leading the design and development of full stack features for an AI-powered web application using Python, React, Redux, PostgreSQL, and AWS.
  • Defining the technical vision and architectural principles for AI/ML systems, driving innovation through research and prototyping.
  • Ensuring security, scalability, and observability best practices across cloud architecture while mentoring junior engineers.

PolicyMe is Canada's leading digital insurance solution, offering straightforward and affordable financial protection for families. Founded in 2018, the company has grown exponentially, selling over $10 billion in coverage, and operates with a remote-first culture attracting top talent across Canada.

United States

  • Design and scale systems to drive provider growth, from acquisition to retention.
  • Lead technical projects from concept to delivery, navigating trade-offs.
  • Mentor engineers and foster a high-performing engineering culture through code reviews.

Rula is a mental health company dedicated to treating the whole person with evidence-based and compassionate care. It is a remote-first company with most employees in the U.S., emphasizing diversity, equity, and inclusion.

Germany

  • Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub.
  • Improve platform reliability through deployments, monitoring, and incident response, while creating robust observability systems and data-backed insights.
  • Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements and resolve issues impacting users and developers.

Mozilla Corporation is the non-profit-backed technology company behind Firefox and other products, focused on making the internet better for people. With over 225 million users and wholly owned by the non-profit Mozilla Foundation, we are committed to open-source software and a people-first mission, not shareholders.

US Unlimited PTO 12w maternity 12w paternity

  • Build and maintain full stack internal tools supporting machine learning workflows, including interfaces, APIs, and backend services.
  • Develop scalable web applications using modern frameworks like React with TypeScript to improve ML experimentation, deployment, and monitoring.
  • Design and integrate APIs using Node.js or Python, and work with SQL-based data stores and Docker/Kubernetes for deployment.

This role sits at the intersection of full stack engineering and machine learning infrastructure, focused on building internal tools that power ML and data science workflows. The company fosters a fast-moving, high-ownership environment with a focus on reliability and scalability.

US 16w maternity 16w paternity

  • Design and build agentic workflows and automation solutions using AI and structured inputs.
  • Develop full-stack support tooling including user interfaces, APIs, and integrations.
  • Improve platform reliability and observability through monitoring, logging, and production best practices.

Our partner is a technology company focused on AI-driven customer support solutions. They maintain a remote-first culture with a collaborative and innovative environment.

$126,279–$157,849/yr
US Unlimited PTO 12w maternity 12w paternity

  • Lead complex consulting engagements from discovery to production, building high-quality, maintainable software collaboratively.
  • Mentor colleagues and share knowledge, while actively seeking and giving feedback to foster a culture of continuous learning.
  • Drive architecture and design discussions, balancing technical considerations with product and user needs.

8th Light is a technology solutions consultancy that partners with organizations from startups to large companies. They foster an open, collaborative culture with continuous education and mentorship.

India

  • Develop, test, and deploy code for prototypes and new product features, collaborating on rapid prototyping with modern technologies.
  • Participate in code reviews, documentation, and knowledge sharing while experimenting with AI, machine learning, and emerging technologies.
  • Communicate progress and technical concepts to stakeholders, adapt quickly to feedback, and contribute to continuous improvement of engineering best practices.

Twilio is shaping the future of communications by delivering innovative solutions to hundreds of thousands of businesses and empowering millions of developers. The company has a remote-first culture with a strong focus on connection and global inclusion.

United States

  • Partner directly with customers to translate challenges into scalable AI solutions and lead technical discovery.
  • Design, build, and deploy AI applications using LLMs, cloud-native architectures, and CI/CD pipelines.
  • Mentor engineers and guide technical workstreams across multiple client engagements with strong ownership.

Jobgether is an AI-powered job matching platform connecting candidates with hiring companies. They use automated processes to evaluate applications and share shortlists with employers, emphasizing efficient, fair recruitment.

US 4w PTO 13w maternity 13w paternity

  • Design, build, and maintain AI-powered features like LLM integrations and RAG pipelines.
  • Contribute to tooling for AI reliability, including observability and monitoring.
  • Prototype solutions quickly and work with peers to harden them for production.

Homeward creates financial products that remove uncertainty from homebuying. As a remote-first real estate startup with about 200 employees, we value the Golden Rule, One Team One Dream, and Calm Focus.

US Unlimited PTO

  • Design and prototype AI-assisted development techniques like code generation and test automation.
  • Partner with product and platform teams to integrate AI workflows into existing systems.
  • Mentor engineers on effective use of AI tools and contribute to technical strategy.

Hims & Hers is a leading health and wellness platform that provides personalized care from diagnosis to treatment delivery. As a public company traded on NYSE, they foster a remote-first culture with a focus on innovation and employee well-being.

Brazil LATAM 4w PTO

  • Design, build, and maintain internal web applications that automate workflows and reduce costs.
  • Translate business requirements into scalable software using AI-assisted development tools and modern engineering practices.
  • Identify automation opportunities by evaluating existing systems, tools, and manual processes.

Jobgether is an AI-powered job matching platform that connects candidates with hiring companies by objectively evaluating applications. They emphasize fast, data-driven recruitment and maintain a supportive, people-first culture with remote work opportunities.

US Unlimited PTO

  • Design and build scalable AI-powered solutions on Genesys Cloud, including Agentic AI platforms and industry-specific accelerators.
  • Provide technical leadership across architecture, development, and delivery, collaborating with Product, Engineering, and Customer teams.
  • Drive adoption of advanced AI frameworks like LangGraph, CrewAI, and RAG architectures to solve real-world enterprise challenges.

Genesys provides AI-powered customer experience solutions that transform customer and employee interactions globally. As a large organization, they foster a culture of innovation and collaboration, offering development opportunities and flexible work options.

India

  • Lead design and development of scalable full-stack applications with cloud-native and AI technologies.
  • Build AI-enabled applications using large language models, retrieval-augmented generation, and autonomous execution patterns.
  • Collaborate with cross-functional teams to translate business needs into technical solutions and drive engineering best practices.

This role is listed on behalf of a partner company that builds advanced AI-powered enterprise applications transforming customer interactions. The company has a flexible-first work culture supporting remote arrangements and offers professional growth opportunities.

UK 5w PTO

  • Build fullstack features for Midnite’s internal back office platform.
  • Own features end-to-end across backend APIs and internal UIs.
  • Contribute to practical AI-enabled features and internal tooling improvements.

Midnite is a next-generation sports betting and gaming platform built for a new wave of players. We are a high-performance team of over 400,000 players, operating at pace with high ownership and constant iteration.

  • Design, build, and own user-facing features in React and TypeScript, setting the technical direction and quality bar for the frontend.
  • Use AI and agentic development tools like Claude to move quickly and establish best practices for AI-assisted development.
  • Dip into Go for backend services, collaborate with stakeholders, and contribute to product roadmaps.

Sardine is the leading agentic risk platform for fighting financial crime, unifying data to stop fraud and automate operations. With over 6 billion profiled devices, 800 million consumers, and 3 million businesses, Sardine is a rapidly growing company with a remote-first culture that values performance and flexibility.