Lead Backend Engineer

Lead Backend Engineer – Python/Django (Team Lead)

Xelix is looking for a Back-End Team Lead to join our fast growing scale-up. The...

Location

United Kingdom , London

Salary:

Not provided

Xelix

Expiration Date

Until further notice

Requirements

5+ years of professional development experience
Minimum of 2 years experience leading a development team of at least 3 people
Computer Science or similar technical degree
Strong understanding of the Python / Django ecosystem
Familiarity with building RESTful APIs with the Django Rest Framework
Experience developing robust and scalable solutions in Python
Experience with relational databases (PostgreSQL on AWS)
Experience implementing performance improvement strategies
Strong Computer Science fundamentals

Job Responsibility

Support developers when they are stuck on a problem
Facilitate architectural decision making
Share knowledge to maintain DRY principles and ensure codebase consistency
Keep up to date with industry developments and bring new technology to the team
Mentoring, training and career planning for team members
Conducting monthly 1-1 sessions
Collaborating with the Product Team to prioritise and allocate tasks
Recruitment
Promote managerial best practice with team lead peers

What we offer

27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure
Option to roll over, buy or sell up to 3 days annual leave
Hybrid working with one day a week from dog-friendly Hoxton office
On-site gym
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
Carbon-neutral company working towards ambitious carbon reduction goals

Fulltime

Lead Backend Engineer (Python)

We are looking for a Lead / Principal Backend Software Engineer to help automate...

Location

Salary:

Not provided

N-iX

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Computer Science (or equivalent practical experience)
Demonstrated senior level experience building and operating production backend systems
Senior level proficiency in Python, especially for automation, data processing, and ML related pipelines
Strong experience designing CI/CD driven, fully automated release pipelines with integrated testing and quality gates
Experience defining automated decision logic based on metrics or KPIs to support fully automated onboarding or release flows
Practical experience integrating ML workflows into existing production systems
Experience working with existing machine learning models for document analysis, computer vision, or similar unstructured data problems (evaluation, configuration, adaptation)
Hands on experience with AWS based environments, including scalability, reliability, and cost considerations
Strong Git proficiency and a disciplined approach to code review and collaboration
Strong spoken and written English

Job Responsibility

Replace manual, slow onboarding processes with automated, reliable pipelines using modern CI/CD and cloud technologies
Design, build, and deploy production grade APIs and services within a microservices and or serverless architecture
Own your work end to end, from design through deployment, ensuring scalability, security, and performance
Automate testing and delivery through robust unit, integration, and performance test suites and quality gates
Document solutions clearly for internal stakeholders and external developers consuming public APIs
Partner closely with ML and engineering teams to integrate existing ML models and services into onboarding workflows
Improve release quality and enable faster, safer, and more scalable deployments through automation and testing
Collaborate cross functionally with product managers, researchers, and operations teams to translate ideas into production ready features
Participate in Agile ceremonies (stand ups, planning, retrospectives) and help drive continuous improvement

What we offer

Flexible working format - remote, office-based or flexible
A competitive salary and good compensation package
Personalized career growth
Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
Active tech communities with regular knowledge sharing
Education reimbursement
Memorable anniversary presents
Corporate events and team buildings
Other location-specific benefits

Senior Backend Engineer - Python / Threat Intelligence

Are you ready to join a team that's building the future of threat intelligence? ...

Location

Czechia , Prague

Salary:

Not provided

Rapid7

Expiration Date

Until further notice

Requirements

A minimum of 5 years of software development experience in a production environment with deep proficiency in Backend technologies (Python), including Python libraries (eg. SQLAlchemy, Pydantic, Playwright, Pytest), API design, Databases, and Microservices
Experience with Cloud computing (e.g., GCP, AWS, or similar)
Experience with DevOps practices (CI/CD pipelines, etc.)
Experience with Databases (eg. ElasticSearch, Firestore, PostgreSQL, MongoDB)
Problem Solving: Strong creative problem-solving skills with a focus on system design and performance optimization
Attention to Detail: Excellent attention to detail and a commitment to high-quality technical execution
AI Proficiency: Hands-on approach to AI Research and the ability to integrate AI into production environments
Passionate and responsible team player with strong communication skills
You aren't afraid to challenge the status quo, bringing innovative thinking and a fresh perspective to complex problems
Understanding of the full lifecycle development process, including business and functional requirements, developing technical designs, implementation of scalable solutions, and object-oriented design

Job Responsibility

Take an active role in the design and planning of upcoming features and make well-reasoned decisions and tradeoffs in your areas of expertise
Develop, test, and deploy high-quality, efficient code across the full stack, adhering to best practices and coding standards
Lead AI Research & POCs to find innovative solutions for threat intelligence
Take an active role in high-level architectural thinking, working with both legacy code and greenfield projects
Investigate and resolve the most complex system defects and production issues, performing root cause analysis to implement permanent technical solutions
Partner with internal teams to ensure we are understanding and delighting our customers

Fulltime

Senior E-Commerce Engineer / Team Lead

We are looking for an experienced Senior E-Commerce Engineer / Team Lead to join...

Location

United States , Woburn

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

At least 5 years of experience in e-commerce engineering, including substantial work with Magento or Adobe Commerce
Proven background integrating product information management platforms, with Akeneo experience considered beneficial
Strong knowledge of API design, implementation, and troubleshooting across interconnected application environments
Experience supporting ERP-integrated solutions and working with enterprise business systems such as Sage-related platforms
Proficiency in analyzing business requirements and converting them into practical technical solutions
Hands-on capability with Python for scripting, troubleshooting, or process improvement tasks
Demonstrated ability to lead projects or provide technical guidance in a senior engineering capacity
Availability to work onsite five days per week in Woburn, Massachusetts.

Job Responsibility

Guide technical delivery within the Magento / Adobe Commerce environment, supporting enhancements that improve site functionality and platform stability
Create and maintain integrations between the e-commerce platform and product information management systems to support accurate, consistent data movement
Develop, refine, and monitor APIs that connect Magento with related business applications, ensuring dependable and efficient system communication
Partner with cross-functional stakeholders to streamline product data processes and strengthen overall application performance
Investigate integration issues, resolve backend defects, and improve existing automation or support scripts, including work related to Python-based tooling
Provide senior-level technical direction to team members and contribute mentorship where needed, while also remaining active in hands-on development
Translate business and technical needs into clear solution approaches that support operational goals and system usability
Support work within ERP-connected environments, helping maintain alignment between commerce applications and core business systems.

What we offer

medical
vision
dental
life and disability insurance
401(k) plan

Fulltime

Tonsser is on a mission to redefine youth sports. Hundreds of thousands of young...

Location

Salary:

80000.00 - 90000.00 EUR / Year

Tonsser

Expiration Date

Until further notice

Requirements

Significant experience as a senior or lead backend engineer, ideally with time spent owning architecture decisions in a production environment
Deep comfort with at least one of Ruby, Python, Elixir, Go, or a similar modern backend language, and the judgement to know when language choice matters and when it doesn't
Strong opinions on API design, data modelling, and system evolution
Hands-on experience integrating AI/LLM capabilities into real products, or a strong, demonstrable interest in doing so
Experience leading or mentoring other engineers
Comfortable working remotely across European timezones

Job Responsibility

Lead the architectural direction of our backend platform as we evolve from where we are today toward what's next
Drive the technical roadmap for our new flagship project
Set the standard for how the team works with AI, both in our development workflow and as a product capability
Ship production code, review PRs, and mentor the engineers around you
Partner closely with product, mobile, and design to turn ambitious ideas into things that actually work at scale
Make pragmatic calls about what to keep, what to evolve, and what to rebuild

What we offer

Remote work across Europe

Fulltime

Senior E-Commerce Engineer / Team Lead

We are looking for an experienced Senior E-Commerce Engineer / Team Lead to join...

Location

United States , Woburn

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

At least 5 years of experience in e-commerce engineering, including substantial work with Magento or Adobe Commerce
Proven background integrating product information management platforms, with Akeneo experience considered beneficial
Strong knowledge of API design, implementation, and troubleshooting across interconnected application environments
Experience supporting ERP-integrated solutions and working with enterprise business systems such as Sage-related platforms
Proficiency in analyzing business requirements and converting them into practical technical solutions
Hands-on capability with Python for scripting, troubleshooting, or process improvement tasks
Demonstrated ability to lead projects or provide technical guidance in a senior engineering capacity
Availability to work onsite five days per week in Woburn, Massachusetts

Job Responsibility

Guide technical delivery within the Magento / Adobe Commerce environment, supporting enhancements that improve site functionality and platform stability
Create and maintain integrations between the e-commerce platform and product information management systems to support accurate, consistent data movement
Develop, refine, and monitor APIs that connect Magento with related business applications, ensuring dependable and efficient system communication
Partner with cross-functional stakeholders to streamline product data processes and strengthen overall application performance
Investigate integration issues, resolve backend defects, and improve existing automation or support scripts, including work related to Python-based tooling
Provide senior-level technical direction to team members and contribute mentorship where needed, while also remaining active in hands-on development
Translate business and technical needs into clear solution approaches that support operational goals and system usability
Support work within ERP-connected environments, helping maintain alignment between commerce applications and core business systems

What we offer

medical
vision
dental
life and disability insurance
401(k) plan

Fulltime

Lead Backend Engineer

We’re looking for a Lead Backend Engineer to join a fast-growing private equity ...

Location

European Economic Area

Salary:

Not provided

Orbis Consultants

Expiration Date

Until further notice

Requirements

Strong experience in Python and FastAPI
Hands-on with Azure cloud services and infrastructure
Background in investment or quantitative systems
Comfortable owning and troubleshooting production-grade systems

Job Responsibility

Build and maintain APIs and backend services in Python and FastAPI
Develop and improve deployment pipelines, automation, and monitoring
Support trading and investment systems used by quant and private equity teams
Take ownership of production systems, ensuring they run smoothly

Lead Backend Engineer

Join the Customer Experience Platform team to help build a world-class Customer ...

Location

United States , San Francisco; Los Angeles; Seattle; New York

Salary:

195000.00 - 230000.00 USD / Year

Whatnot

Expiration Date

Until further notice

Requirements

5+ years of full-time software engineering experience in high growth startups
Bachelor’s degree in Computer Science, a related field, or equivalent work experience
Proven track record of building end-to-end product experiences and scaling high-scale backend systems
Experience with Python, Elixir, and/or Postgres is a plus
Ownership Mindset: Own projects holistically from inception to production and beyond
Product Instinct: Excel at translating user needs to effective technical solutions
Problem Solving: Thrive in ambiguity and tackle challenging problems with creativity and autonomy
Team Leadership: Proactively improve the team environment and foster inclusive, supportive team culture

Job Responsibility

Build new user-facing experiences
Scale internal infrastructure
Design intelligent AI-powered automations to help solve thousands of customer issues per hour
Lead solutions end to end
Translate ambiguous business problems into clear technical solutions and drive delivery and experimentation
Balance development speed, product impact, and technical excellence

What we offer

Generous Holiday and Time off Policy
Health Insurance options including Medical, Dental, Vision
Work From Home Support
Home office setup allowance
Monthly allowance for cell phone and internet
Care benefits
Monthly allowance for wellness
Annual allowance towards Childcare
Lifetime benefit for family planning, such as adoption or fertility expenses
Retirement

Fulltime

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Lead Backend Engineer – Python (Team Lead)

Job Description

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