Senior Backend Software Developer - Python/Django Job at Xelix (London)

Senior Backend Software Developer - Python/Django

At Xelix, we work with some of the world’s largest companies to automate and str...

Location

United Kingdom , London

Salary:

70000.00 - 95000.00 GBP / Year

Xelix

Expiration Date

Until further notice

Requirements

4+ years of Python coding professional experience
Ability to learn and apply new technology quickly
Ability to effectively communicate complex technical concepts to team members and stakeholders
Familiarity with coding in Django and the Django Rest Framework
Degree in Computer Science (or similar), at 2:1 or above
Amazon Web Services
SQL / PostgreSQL
Build pipeline and CI with GitHub, Jenkins, Docker, Terraform

Job Responsibility

Implementing robust and scalable solutions in Python
Developing, using and designing REST APIs to efficiently deliver application components
Implementing performance improvement strategies
Ensuring the quality of code by writing comprehensive tests and participating in code reviews

What we offer

27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days
Hybrid working with one day a week from our dog-friendly Hoxton office
On-site gym and cycle to work scheme
Employee discount at over 100 retailers
Comprehensive private medical & dental cover with Vitality
Enhanced parental leave pay
Learning & development culture – £1,000 personal annual budget
We’re carbon-neutral and are working towards ambitious carbon reduction goals
Lots of team socials & activities
Annual team retreat

Fulltime

Senior Engineering Manager, Consumer

As a hands-on Engineering Manager, you’ll oversee engineers to build and ship ke...

Location

India , Bangalore

Salary:

Not provided

Ethos

Expiration Date

Until further notice

Requirements

4+ years of engineering management experience in high-growth engineering organizations
6+ years of engineering experience as an individual contributor
Experience designing and implementing complex backend systems
Back end architectural patterns of large, high-scale web applications experience
Experienced with software engineering best practices – design patterns, code reviews, unit and integration testing, etc.
Full stack engineering experience in Javascript, Python/Django, or Ruby/Rails
Ability to adjust the process of the team to maximize productivity
Assess risk and proactively deliver a plan and timeline for the entire pod and their team members
Write design reviews, architecture and help mentor the team on their design reviews

Job Responsibility

Play the role of technical SME for the pod by diving into the weeds of architecture and implementation
Collaborate closely with product team to develop the tech roadmap
Recruit, hire, grow, and retain A+ engineering talent
Demonstrated track record of shipping complex products in a fast-paced environment
Deep understanding of your pod's OKRs, metrics and KPIs to contribute to the overall strategy and vision
Build up technical details of existing systems
Provide meaningful feedback to your teammates to enable their work and growth

Senior Full Stack Software Engineer

Procurify is looking for a motivated, collaborative, and creative person who is ...

Location

Canada

Salary:

122000.00 - 152000.00 CAD / Year

Procurify

Expiration Date

Until further notice

Requirements

5+ years of professional experience in hands-on work across both frontend and backend systems, preferably in a SaaS environment
Deep understanding of LLMs, prompt engineering, RAG architectures, vector databases (Databricks/pgVector), and agentic AI frameworks (LangChain, Google ADK, or similar)
Strong experience building and maintaining applications using Python and a major web framework (we use Django)
Experience building modern web applications with React and TypeScript, including component-based architecture and state management
Experience working with agile practices (Scrum/Kanban) and CI/CD principles
Empathetic & Accountable
Maintains a professional and current LinkedIn profile, ensuring it is updated upon joining Procurify

Job Responsibility

Build & Ship End-to-End Features: Design, develop, and maintain full stack features—from RESTful APIs and backend services to responsive, user-friendly frontend components—using Python/Django and TypeScript/React
Develop Scalable Backend Services: Build and evolve backend systems that handle business logic, data storage, and integrations, ensuring performance, reliability, and scalability
Create High-Quality Frontend Experiences: Implement reusable, accessible, and performant UI components in React. Collaborate with product and design to deliver intuitive user experiences
Design & Optimize Database Schemas: Contribute to the design of our database models and write efficient, secure queries. You will work to ensure the performance and integrity of our data layer
Champion Code Quality: Ensure you and other team members are contributing clean, efficient, testable, and reusable code that is easy to maintain and extend and aligns with our technical strategy and coding standards
Strengthen System Architecture: Provide leadership in the technical output of your team and ensure technical designs follow appropriate design patterns, are architecturally sound, and adhere to secure coding practices
Ensure System Reliability: Enable the observability and monitoring of relevant system behavior in the areas of the application owned by your team and use the data collected to propose improvements to application performance and stability

What we offer

Flexible working: We’re a remote-first organization with flexible working hours. Work anywhere from within Canada!
Responsible time off
Extended health benefits: We offer a competitive health, vision, and dental package along with an Employee Assistance Program (EAP), and a health and wellness spending account
Community initiatives: Join one of our regular community days, donate to our Donate Your Day program, and get involved with one of our lunch and learns
Stock options: Everyone has a chance to own a part of Procurify with our competitive stock program
DEI initiatives: We regularly run a diversity, equity, and inclusion roundtable where we host guest speakers and tackle the topics that matter

Fulltime

Senior Full Stack Software Engineer

We’re looking for a Senior Full Stack Engineer to help build and evolve Dashboar...

Location

Hungary , Budapest

Salary:

Not provided

Formlabs GmbH

Expiration Date

Until further notice

Requirements

Professional experience building, shipping, and maintaining production web applications
Strong collaboration skills and enthusiasm for working with cross-functional partners in Marketing, Design, and Engineering
A pragmatic engineering mindset, with a solid grasp of the trade-offs between speed, quality, and long-term maintainability
A primary-owner mentality: you take pride in the code you write and drive projects to completion
Proficiency in Python/Django, along with experience using modern frontend libraries such as React
A high bar for code quality, with habits around writing clear, well-documented, and testable code
Curiosity and adaptability—you’re comfortable stepping outside your comfort zone and learning new tools or domains as needed

Job Responsibility

Be a foundational engineer for Dashboard and backend infrastructure
Develop reliable&scalable web application using a technology stack centered on Python and Django
Develop user-facing frontend features, collaborating closely with Marketing and Design teams to deliver compelling experiences
Contribute to the architecture and best practices

What we offer

Shares in the company (RSUs)
Catered lunch at the office 3 days per week
Private health insurance with Medicover (Blue package + hospital coverage)
A monthly or quarterly public transportation pass for Budapest
Free beverages and snacks at the office
All You Can Move sports pass with 7000 HUF monthly allowance
Free 3D prints
An inclusive, dog-friendly office with diverse and inspiring colleagues
Development opportunities both in-house and off-site

Senior Front End Software Engineer

addons.mozilla.org (AMO) is the foundation of the Firefox add-ons ecosystem. It’...

Location

Canada

Salary:

104000.00 - 151000.00 CAD / Year

Mozilla

Expiration Date

Until further notice

Requirements

4+ years of professional experience building modern web applications
Proficiency in React, JavaScript/TypeScript, HTML, and CSS, with strong debugging and testing skills
Familiarity with Python/Django or similar backend frameworks
Understanding of web security principles and practices
Awareness of accessibility, responsive design, and API integration
Strong collaboration and communication skills in a distributed team environment
Comfortable working in an environment that includes contributions from both staff and the open-source community
Commitment to our values: Welcoming differences
Being relationship-minded
Practicing responsible participation

Job Responsibility

Design, build, and refine frontend experiences in AMO and DevHub, ensuring they are fast, accessible, and user-friendly
Contribute to modernization and improvements in architecture and maintainability
Help keep the platform safe and trustworthy, with attention to security and user trust
Step in to resolve issues impacting users and developers, from small bugs to larger incidents
Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements
Contribute in the open through pull requests, code reviews, and discussions

What we offer

Generous performance-based bonus plans
Rich medical, dental, and vision coverage
Generous retirement contributions with 100% immediate vesting
Quarterly all-company wellness days
Country specific holidays plus a day off for your birthday
One-time home office stipend
Annual professional development budget
Quarterly well-being stipend
Considerable paid parental leave
Employee referral bonus program

Fulltime

New

Senior Security Engineer

We're looking for a hands-on Senior Security Engineer who will be the driving fo...

Location

Spain , Barcelona

Salary:

Not provided

Bsport

Expiration Date

Until further notice

Requirements

5+ years in security engineering, infrastructure security, or security software engineering roles
Strong hands-on experience with AWS or GCP security (IAM, security groups, WAF, etc.)
Deep understanding of application security (OWASP Top 10, secure coding, API security)
Experience building security programs from scratch in fast-growing startups or scale-ups
Proven track record in incident response and handling data breach scenarios
Good programming skills (at least one of Python, Typescript, Golang)
Experience with infrastructure security (Kubernetes, container security, IaC security)
Prior experience training employees on Security

Job Responsibility

Harden our AWS infrastructure and application security
Audit and improve IAM configurations and policies
Enhance WAF rules to block sophisticated attacks
Implement automated security scanning in CI/CD pipelines (SAST/DAST)
Work with the SRE team to secure our Kubernetes clusters and container images
Drive and maintain state-of-the-art security posture across backend, frontend, and user data management in collaboration with SWE teams, ensuring best-in-class protection for our systems and users
Strengthen authentication infrastructure and identity management
Deploy and configure email security solutions within existing Google Workspace
Deploy and enforce strong authentication methods across the organization's applications and services (SSO, MFA)
Create automated alerting for suspicious behaviors patterns using Grafana/ELK

What we offer

Attractive compensation package
Hybrid model with remote days to support balance and flexibility
Enjoy up to 15 days of remote work from abroad each year
Fully-funded Alan private health coverage
Stay active with a specially discounted DIR gym membership
Multicultural colleagues, after-work events, team-building & more

Fulltime

New

Senior Full Stack Software Engineer

At Formlabs, software isn’t a side dish—it’s core to how we design, manufacture,...

Location

Hungary , Budapest

Salary:

21503000.00 - 32000000.00 HUF / Year

Formlabs GmbH

Expiration Date

Until further notice

Requirements

A strong track record of building, shipping, and maintaining production web applications
Deep experience with Python/Django and modern frontend frameworks such as React
A primary-owner mentality: you take pride in your systems, sweat the details, and see projects through to completion
A high bar for code quality—clean, documented, testable, and readable
Comfort collaborating across disciplines, especially with Design, Marketing, and Engineering partners
The ability to thrive outside your comfort zone, quickly learning new tools and technologies as needed

Job Responsibility

Be a foundational engineer for the Dashboard and its backend infrastructure, influencing long-term technical direction
Design, build, and scale reliable, high-performance web applications using Python and Django at the core
Develop user-facing frontend features (React) and collaborate closely with Marketing and Design to deliver polished, intuitive experiences
Own projects end-to-end—from technical design and implementation to rollout and iteration
Contribute to architectural decisions, engineering standards, and best practices across the team
Balance speed and quality with a pragmatic mindset, always optimizing for long-term maintainability

What we offer

Hybrid work
Catered lunch at the office 3 days per week
Private health insurance with Medicare (Blue package + hospital coverage)
A monthly or quarterly public transportation pass for Budapest
Shares in the company (we're a double unicorn company!)
Free beverages and snacks at the office
All You Can Move sports pass with 7000 HUF monthly allowance
Free 3D prints
An inclusive, dog-friendly office with diverse and inspiring colleagues
Development opportunities both in-house and off-site

Fulltime

Senior Full Stack Software Engineer

At Formlabs, software isn’t a side dish—it’s core to how we design, manufacture,...

Location

Hungary , Budapest

Salary:

Not provided

Formlabs GmbH

Expiration Date

Until further notice

Requirements

A strong track record of building, shipping, and maintaining production web applications
Deep experience with Python/Django and modern frontend frameworks such as React
A primary-owner mentality: you take pride in your systems, sweat the details, and see projects through to completion
A high bar for code quality—clean, documented, testable, and readable
Comfort collaborating across disciplines, especially with Design, Marketing, and Engineering partners
The ability to thrive outside your comfort zone, quickly learning new tools and technologies as needed

Job Responsibility

Be a foundational engineer for the Dashboard and its backend infrastructure, influencing long-term technical direction
Design, build, and scale reliable, high-performance web applications using Python and Django at the core
Develop user-facing frontend features (React) and collaborate closely with Marketing and Design to deliver polished, intuitive experiences
Own projects end-to-end—from technical design and implementation to rollout and iteration
Contribute to architectural decisions, engineering standards, and best practices across the team
Balance speed and quality with a pragmatic mindset, always optimizing for long-term maintainability

What we offer

Hybrid work
Catered lunch at the office 3 days per week
Private health insurance with Medicare (Blue package + hospital coverage)
A monthly or quarterly public transportation pass for Budapest
Shares in the company (we're a double unicorn company!)
Free beverages and snacks at the office
All You Can Move sports pass with 7000 HUF monthly allowance
Free 3D prints
An inclusive, dog-friendly office with diverse and inspiring colleagues
Development opportunities both in-house and off-site

Senior Backend Software Developer - Python/Django

Xelix

Location:
United Kingdom , London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 16, 2026

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