Senior Software Engineer
Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Oct 7, 2026.
Your Mission
Senior Software Engineer
Reports to: Engineering Team Lead
Works closely with: Engineering Tech Lead, QA team members
Software: C#
Location: UK / Estonia / US (remote-friendly within these regions)
Role purpose
The Senior Software Engineer is a high-impact individual contributor who delivers complex work and raises the effectiveness of the team around them.
This role exists to tackle technically challenging problems, support less experienced engineers, and contribute to sound technical decisions - all while remaining aligned with agreed architecture and standards.
Experience and capabilities
Strong experience as a software engineer in a production SaaS environment
Proven ability to deliver complex, high-quality solutions
Strong understanding of testing, performance, and maintainability
Ability to mentor others and influence through example
Sound technical judgement under pressure
Why this role matters
Senior engineers set the technical tone within teams.
Done well, this role:
Improves delivery quality and resilience
Develops other engineers
Reduces technical risk
What You'll Bring To The Role
Key responsibilities
Technical delivery
Design and implement complex features and improvements
Take ownership of technically significant or high-risk work
Ensure solutions are maintainable, testable, and well understood
Help diagnose and resolve complex production issues
Technical leadership (within the team)
Provide guidance and mentoring to junior and mid-level engineers
Contribute strongly to code reviews and design discussions
Support the Engineering Tech Lead in maintaining technical quality
Identify technical risks and raise them early
Collaboration and quality
Work closely with QA to ensure confidence in delivered changes
Engage constructively with Product and other stakeholders as needed
Balance pragmatism with long-term thinking
What this role is not
This is not a formal people management role
This is not ownership of cross-team architecture
This is not a substitute for a Tech Lead or Principal Engineer
Senior engineers succeed by delivering difficult work and elevating others.
Why us?
Perks & Benefits
Remote & flexible working - with hybrid options in London or Chichester
Fantastic team culture based on trust and belonging.
Laptop & home office budget - £500 to set up your ideal workspace.
Private Medical Insurance with Aviva, including Dental & Optical.
Group Life Insurance & Yulife Wellbeing & Rewards.
Mental well-being support - Access therapy, mental health sessions, and yoga through a free premium subscription to Headspace.
EAP confidential benefit - 24/7 access to compassionate guidance & expert advice
25 days holiday + bank holidays
Training, support, and personal development