Senior Full Stack Software Engineer

Entrust; City Of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A global identity security company in London seeks a Senior Full Stack Engineer to join their innovative SDK team. You will design, develop, and maintain both frontend and backend systems using modern technologies like React and Python. This role emphasizes collaboration and ownership of projects while adhering to the highest standards of privacy and security. Join them and be a part of shaping secure online identities.

Benefits

25 days annual leave plus a day off for birthday

Two paid volunteering days per year

Private Medical + Dental Insurance

Life Assurance (3x Annual Base Salary)

Generous paid parental leave

Life enrichment allowance up to €95 per month

Expense for workstation setup equipment up to €350

Qualifications

• Minimum 4 years of professional experience in software engineering.
• Proven expertise in at least one modern front-end framework and backend technologies.
• Demonstrated ability to design scalable and secure systems.

Responsibilities

• Collaborate closely with product teams to deliver end-to-end experiences.
• Design, build, and maintain robust systems from frontends to backends.
• Champion privacy and security in every product.

Skills

Frontend development with TypeScript and React

Backend development with Python, Kotlin, Node.js

REST APIs

Agile methodologies

Education

Degree in Engineering, Computer Science, Mathematics, or related field

Tools

Docker

Kubernetes

AWS

Job description

Overview

Join us at Entrust

At Entrust, we’re shaping the future of identity centric security solutions. From our comprehensive portfolio of solutions to our flexible, global workplace, we empower careers, foster collaboration, and build solutions that help keep the world moving safely.

Get to Know Us

Headquartered in Minnesota, Entrust is an industry leader in identity-centric security solutions, serving over 150 countries with cutting-edge, scalable technologies. But our secret weapon? Our people. It’s the curiosity, dedication, and innovation that drive our success and help us anticipate the future.

As a Senior Full stack Engineer for the SDK team, you will join a talented and collaborative team dedicated to building resilient, scalable, and delightful systems and experiences for our customers. Leveraging your expertise across both frontend and backend technologies, you will work on impactful projects that shape how we solve complex identity verification challenges in an online world.

You will play a key role in delivering high-quality, polished products by combining robust system design, seamless user interfaces, and backend reliability.

This role offers an exciting opportunity to combine frontend and backend expertise to create impactful solutions that address the growing demand for secure and seamless online identity verification.

Responsibilities:

Responsibilities

• Product Development

• Collaborate closely with product designers, product managers, and engineers to deliver end-to-end experiences that delight customers.

• Design, build, and maintain robust systems, from intuitive frontends using TypeScript and frameworks like React to scalable backends powering public APIs and data processing pipelines.

• Prototype and iterate solutions to ensure they are impactful, polished, and meet our performance, reliability, and accessibility standards.

• Support multiple devices, browsers, and platforms while adhering to accessibility best practices.

• Privacy, Security, and Quality

• Champion privacy and security in every product, ensuring they meet the highest standards of customer data protection.

• Write automated tests, develop resilient code, and design robust systems to improve reliability and safety.

• Ownership and Collaboration

• Take ownership of projects from ideation through system design to execution and delivery.

• Collaborate across teams to build scalable solutions that address both front-end and back-end challenges.

• Foster a culture of inclusivity, collaboration, and continuous improvement through participation in retrospectives and feedback.

• Guide and mentor engineers, helping them manage technical debt, plan refactors, and improve engineering practices.

What We Value

• A great understanding of modern frontend technologies (e.g., TypeScript and React) and backend technologies (e.g., Python, Kotlin, Node.js, REST APIs, data pipelines).

• A strong ability to design and build for scalability, reliability, and performance across the stack.

• A commitment to privacy and security as core principles in product design and development.

• A proactive approach to continuous learning and improvement, paired with a desire to mentor and support others.

• A deep appreciation for trust, ownership, and rapid iteration as we solve challenging problems in identity verification.

Qualifications

• Minimum 4 years of professional experience in software engineering, with significant exposure to both backend and frontend development.
• Proven expertise in at least one modern front-end framework (e.g., React) and backend technologies (e.g., Node.js, REST APIs).
• Demonstrated ability to design and implement scalable, secure, and high-performing systems across the stack.
• Strong knowledge of software development best practices, including automated testing, code reviews, and agile methodologies.
• Must be able to lawfully work within Portugal and have unrestricted work authorization for Portugal.

Preferred Qualifications

• A degree in Engineering, Computer Science, Mathematics, or a related field.
• Experience building accessible and user-friendly interfaces while adhering to privacy and security standards.
• Familiarity with cloud infrastructure and CI/CD pipelines.
• Strong communication and collaboration skills, with a proven ability to mentor and guide less experienced engineers.
• Passion for solving challenging problems in identity verification or a related domain.
• This role requires a combination of technical expertise, collaboration, and a commitment to building secure, scalable, and user-focused solutions.

Tech Stack

We are technology agnostic at Entrust. We are not looking for you to have experience in all these technologies. If you're open to learning, please apply.

• Backend: mostly Kotlin, Python and Ruby (you don’t need to excel all three.)
• Frontend: React and Typescript
• Kubernetes and Docker for deployment
• AWS for underlying infrastructure (Aurora, Redis, Dynamo, S3, SNS, SQS, CloudFront, API Gateway, etc.)
• Gitlab for software lifecycle management.

Where you will be

At Entrust, we have a distributed workforce. This role follows the location specified in the job description: hybrid for Lisbon-based employees or fully remote for those outside Lisbon.

Benefits

• 25 days (about 3 and a half weeks) annual leave plus a day off - Birthday.
• Two paid volunteering days per year. *
• Private Medical + Dental Insurance through Allianz* (extended up to 2 children)
• Life Assurance (3x Annual Base Salary)*
• Generous paid parental leave
• Life enrichment allowance of up to €95 per month for services including gym, yoga, fitness classes, massages, childcare, and therapy.
• Expense up to €350 to purchase workstation setup equipment

At Entrust, we don’t just offer jobs – we offer career journeys. Here is what you can expect when you join our team:

• Career Growth: Whether you’re a budding developer or a seasoned expert, we’re invested in your professional journey. With learning-forward initiatives and exciting challenges, your growth is our priority.
• Flexibility: Life is all about balance. Whether you’re remote, hybrid, or on-site, we offer flexible options that fit your lifestyle.
• Collaboration: Here, your voice matters. Our teams thrive on sharing ideas, brainstorming solutions, and working together to build a better tomorrow.

We believe in securing identities—but it doesn’t stop there. At Entrust, we’re passionate about valuing all identities. Our culture is built on diversity, inclusion, and respect. From unconscious bias training for our leaders to global affinity groups that connect colleagues across the globe, we’re creating a community where everyone is encouraged to be themselves.

Ready to Make an Impact?

If you’re excited by the prospect of innovating, growing your career, and collaborating in a dynamic environment, Entrust is the place for you. Join us in making a difference. Let’s build a more secure world—together.

Apply today!

For more information, visit www.entrust.com. Follow us on LinkedIn, Facebook, Instagram, and YouTube.

Entrust is an EEO/AA/Disabled/Veterans Employer. We value diversity and inclusion and are committed to building a diverse workforce with wide perspectives and innovative ideas. If you require an accommodation, contact [e-mail].