Senior Software Developer - Backend

At Kepler Communications, we’re not just imagining the future of on‑demand space connectivity - we’re leading it! Our mission is to provide real‑time Internet access for space‑based assets, enabling a new era of data‑driven exploration and innovation. With 33 satellites launched to date, Kepler operates the first commercial optical data relay constellation, enabling real‑time, continuous space communications while supporting advanced on‑orbit compute and hosted payload capabilities.

Industry‑leading technology is only part of the story. What sets Kepler apart is our team: bold thinkers, skilled builders, and passionate problem‑solvers who thrive on pushing the boundaries of what’s possible in space. We believe great ideas come from diverse perspectives, and we’re committed to creating an environment where you can grow, lead, and make a global impact.

If you’re ready to reach higher, move faster, and do work that shapes the future space economy – this is your launchpad. Come build the future with Kepler!

What We Offer:

Competitive compensation with a robust equity plan to share in our success

Comprehensive coverage for health, dental, and vision insurance, including dependents

Unlimited vacation, supportive parental leave policy, and company‑wide holiday shutdown

Semi‑annual company‑wide parties and frequent in‑office team events

Relocation packages available for approved roles

$1,500 annual professional development fund to support your growth

Fully stocked Toronto office kitchen with snacks, drinks, games and top‑notch kitchen appliances

Town Hall, Celebration Calls, and Company‑wide events to stay connected and engaged

We’re a certified Great Place to Work, five years in a row!

Key Responsibilities:

Design and develop reliable, high‑quality software related to operating Kepler’s satellite network infrastructure and mission control software automation

Ensure system performance, security, and high availability through best practices

Collaborate with satellite operators, product managers, and customers to deliver mission‑critical ground systems

Build and optimize CI/CD pipelines to streamline deployment and improve development workflows

Monitor system health, troubleshoot issues, and proactively implement improvements

Help develop roadmaps and long‑term technical plans for Kepler’s ground segment

Mentor junior developers and contribute to a culture of technical excellence

Required Skills & Qualifications:

Minimum 6+ years of Python experience

Bachelor’s degree in Computer Science or equivalent

Strong software design and development skills, including algorithms, system architecture, testing, and debugging

Expertise in building and maintaining CI/CD pipelines using tools such as GitLab CI, GitHub Actions, or Jenkins

Experience with containerized software (Docker, Kubernetes, K8s) and infrastructure‑as‑code (Ansible, Terraform, etc.)

Ability to operate in a Linux‑based environment

Proficiency with git

Excellent communication skills

Bonus Points:

Post‑graduate degree in a relevant field

Experience with architecting and deploying on cloud platforms (AWS, Azure, etc.)

Proficiency in SQL and NoSQL databases (PostgreSQL, DynamoDB, etc.)

Familiarity with Python development tools such as uv, pytest/unittest, setuptools, SWIG, and C‑extensions

Strong knowledge of computer networking and modern networking protocols, especially delay‑tolerant networking

Experience with event‑driven architectures (Apache Pulsar, AWS SNS/SQS, Kafka, RabbitMQ)

Familiarity with observability tools (Prometheus, Grafana, TimescaleDB, ELK stack)

Knowledge of security best practices in software development

Employment Equity & Accommodation Statement Kepler Communications is an equal opportunity employer committed to building a diverse and inclusive workplace. We welcome applications from all qualified individuals, including women, Indigenous peoples, persons with disabilities, members of visible minorities, and people of all sexual orientations and gender identities.

If you require accommodation during any stage of the recruitment process, please contact our People & Culture team at accommodation@kepler.space, and we will work with you to meet your needs.

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