Who are Benifex?

We are a fast-moving technology company, and one of the most successful providers of online reward and benefits solutions in the world. We believe that everyone deserves an exceptional experience at work, every day, and build workplace technology that makes this happen. Benifex’s mission is to build remarkable experiences that employees love. Today Benifex supports more than five million employees in over 3,000 organisations across more than 100 countries. To help us on our quest to be the best, we need brilliant people on board and that’s where you come in.

Why should you apply?

Impact: work on a product suite used by millions of people that improves employee experience and wellbeing.
Scale: a big focus of our engineering teams is building features and services to support our customers globally.
Autonomy: have an input into the product roadmap and technically lead features/services.
Development: While new services are created in Java, you'll be mastering Go to help maintain existing services.
Top 10 Employer, Sunday Times Best Places to Work Awards and Best Large Tech Company to Work for 2025
Work for a profitable, fast-growing market leader in the online reward and benefits space

Role Overview

Our Product Engineering department is in an exciting phase of growth, and we are actively seeking a Senior Backend Engineer who specialises in Golang and is open to learn and explore integrations with rest of our Java services.

In this role, you will focus exclusively on developing new features and innovations for our OneHub Wallet product, addressing unique challenges in the employee allowances domain. You will collaborate closely with our Principal Backend Engineer to architect optimal solutions and strategies for our OneHub products.

You will be part of an Agile development team, with autonomy and responsibility to uphold code quality, security, performance, and maintainability, adhering to development principles and best practices. We have a diverse team of engineers from various backgrounds. If you're passionate about learning and growing in a dynamic environment, we'd love to hear from you.

Stack: Golang, Java, Spring Boot, REST API's, MongoDB, Docker, Kubernetes, GCP.

**Please note we are unable to offer visa sponsorship and require to people to be based in the UK or Ireland for this position**

Great benefits:

£75,000-90,000

Tech setup of your choice (MacBook Pro or equivalent, monitors, etc.)

£/€800 annual learning budget, plus two hours per week as ‘Focus Fridays’.

Flexible work – choose a working setup that works for you, our only ask is to see you once a month in the office and you must be based in the UK or Ireland.

Full access to our comprehensive benefits package, including discounts from hundreds of high street brands, salary sacrifice schemes across Finance, Health, Tech, and more

✈️ 25 days holiday plus your local bank holidays

Your birthday off

❤️ Two half day wellbeing days

Healthcare cash plan to cover the costs of day-to-day healthcare

Employee Assistance Plan 24/7 365 support

Income Protection (75%) and life assurance (4x salary)

Referral bonuses

Enhanced parental leave package - 26 weeks fully paid maternity leave and 4 weeks fully paid paternity leave

✈️ Work from Anywhere policy for 90 days

️ Buy and Sell scheme for holidays

£50 monthly allowance to spend on whatever takes your fancy, your very own Benifex card will be topped up at the start of each month!

Responsibilities

Core Engineering

Design, build, and maintain high-quality REST APIs and backend services in Go & Java, supporting scalable and reliable product integrations.
Maintain a handful of GO services spread across the emerging product suite with a keen eye for migration
Implement and evolve event-driven workflows using Google Cloud Pub/Sub to synchronise profile data across multiple products.
Improve the performance, reliability, and observability of the service (logging, metrics, tracing, alerting).

Architecture & Technical Direction

Work closely with the Principal Engineer to influence the future architecture of profile management, data contracts, and event schemas.
Contribute to the design and evolution of domain events, ensuring schema consistency, forward compatibility, and good modelling practices.
Drive engineering standards across the squad, including testing strategy, CI/CD improvements, and code quality practices.
Works to enable groups of others to improve coding standards and awareness of best practices around non-functional requirements.

Cross-Functional Collaboration

Influences and builds consensus among teams, fostering effective collaboration between product, engineering, and design to drive Wallet projects to completion.
Communicates complex technical issues clearly to various audiences using strong verbal and written communication skills.
Reviews code of any size or scope produced by their team and provides constructive and actionable technical feedback.
Work with frontend and mobile engineers to define clear, well-documented APIs (OpenAPI/Swagger).

Leadership & Mentorship

Provide technical mentorship to engineers in the team, supporting growth, knowledge sharing, and sound engineering practice.
Participate in architectural discussions, design reviews, and incident retrospectives, bringing strong backend expertise.
Actions make the team better, fostering a positive team culture and learning environment.

What are we looking for?

Hands-on Golang experience
Openness to learn & explore Java integrations
Experience working on cloud architecture and software built on REST API’s with the ability to implement high quality code and deliver on time
Good understanding of event-driven architecture (EDA) and programming principles
Experience with NoSQL databases such as MongoDB Atlas
Senior level engineer, both in technical output (leading more complex features/services, technical decision making, owning critical services/projects) and impact on the wider team (mentoring, knowledge sharing, raising standards)
Passion for engineering and continuous learning
A pragmatic approach, someone with the ability to understand the big picture (business, product and tech), factor in all considerations and choose the best way forward
A mindset of taking ownership, identifying and solving problems, able to navigate complex challenges.

Nice to haves

CircleCI or similar CI/CD tools
Google Cloud Platform (GCP)
Keycloak IDP
Monitoring and logging tools like Prometheus and Grafana
Knowledge of containerisation and Kubernetes
Open source collaboration

Even if you don't meet all of the requirements for this role, we encourage you to apply! We are looking for talented and passionate individuals who are eager to learn and grow. We also offer a variety of other roles, so please check out our careers page to see if there is something else that might be a good fit for you.

Our interview process

✌ Benifex understands the need to have a fast and efficient process, the below will all be completed in the shortest time possible.

Initial informal call with the Talent team

⏳ Interview with our Engineering Manager 30 min

Technical Task

Technical Interview - 60 min

Final interview with VP of Engineering - 30-45 min

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

We are committed to creating a diverse and inclusive workplace where everyone feels welcome and respected. We believe that diversity and inclusion are essential to our success, and we are proud to be an equal opportunity employer.

We are a proud member of the Disability Confident employer scheme.

If you require any reasonable adjustments at any stage during the recruitment process, please let us know with your application.

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