Sweden•Posted: Jun 22•Deadline: Aug 16
Join Truecaller – The place where innovation meets impact!
Truecaller's mission is to build trust in communication by making it safer, smarter, and more efficient. Born in Sweden, trusted
by the world, and here’s why we stand out:
* We are trusted by over 450 million active users every month across 190+ countries
* We identify over 15 billion calls daily, helping users avoid spam and scams
* We are powered by a team of 450+ employees from 45+ nationalities
We always look for people who take initiative, own their work, and keep raising the bar. An entrepreneurial mindset matters here,
especially when it turns bold ideas into real actions. We stay collaborative and focused, always searching for smarter paths
forward. If you want to make an impact and grow with a team that inspires millions, you’ll fit right in.
The role:
As a Staff Software Engineer, Backend, you will lead multi-team initiatives, leveraging your deep technical expertise to ensure
alignment, quality, and long-term maintainability across the organization. You will balance hands-on technical guidance with
strategic leadership, establishing engineering best practices that transcend your immediate team. By mentoring experienced
engineers and building strong relationships with cross-functional stakeholders, you will drive project delivery and ensure our
backend infrastructure remains scalable and robust enough to support millions of users worldwide
What you will do
* Lead the team to ensure we build our product efficiently and effectively.
* Influence product priorities and scope, offering valuable input in decision-making.
* Communicate complex decisions clearly, weighing the pros and cons of different solutions.
* Mentor and guide experienced engineers, helping them develop both technically and culturally.
* Leverage your experience to establish best practices across the engineering team and beyond.
* Drive project delivery by aligning with cross-functional stakeholders and ensuring the team has everything needed.
* Lead multi-team initiatives, contributing with technical expertise, ensuring alignment and quality.
* Own the quality of the systems and services the team is responsible for.
* Be hands-on, balancing strategic leadership with technical guidance to support the team.
* Stay up-to-date with industry trends and technologies, ensuring the team works with the best tools available.
* Build strong relationships and align efforts within the team and with external partners when necessary.
* Help with recruitment by interviewing candidates
What you bring in
* Bachelor's degree in computer science or equivalent
* 8+ years of relevant experience with Scala, Java, or Go
* Experience of working with scalable, highly available, real-time distributed systems
* Experience of working with relational and non-relational databases
* Good understanding of data structures and algorithms
* Mentoring, leadership skills
* Excellent communication skills in English.
* Ability to thrive in a dynamic, fast-paced environment.
* Experience with security best practices.
It would be great if you also have:
* Experience as a data engineer or close collaboration with data engineers.
* Experience working with highly available systems.
* Experience with performance tuning.
* Experience with security hardening.
* Experience with GDPR.
* Experience creating tech strategies.
What we offer:
We support growth through learning resources, leadership programs, mentoring, and real hands-on work. People can move between
teams and projects to build new skills and keep things interesting. We offer clear internal mobility and a transparent path for
progression, with leaders who stay involved and provide guidance throughout the year. In addition, you will benefit from:
* A comprehensive compensation package: We offer a competitive salary, 30 days of paid vacation, private health insurance,
parental leave top-up, pension, and wellness contributions.
* Modern tools to do your best work: Choose your preferred computer and phone within our budget, so you can work comfortably and
efficiently.
* A people-focused office culture: We value in-person collaboration and follow an office-first model, with some flexibility. Our
offices offer a vibrant environment with opportunities to learn, connect, and recharge, from breakfast, lunch, and well-stocked
snack stations and quiet spaces to team activities such as movie nights, tech meetups, and cultural events. There's something
for everyone.
* Truecaller’s “Lab Days” offer a space for imagination: 5 times per year for 3 days, where everyone steps away from their normal
tasks to explore new, bold ideas and build things they’ve always wanted to. It’s a space where curiosity leads the way, and
prototypes take shape. Some concepts even make it into production, and a few have grown into real features used by millions
today. Lab Days allow you to be creative, learn fast, and help shape Truecaller's future.
Come as you are:
Truecaller is committed to building a diverse and inclusive team. We believe that a wide range of backgrounds, perspectives, and
experiences strengthens our products and our culture. No matter where you're from, what language you speak, or how you identify,
we value what makes you unique and would love to get to know you.
Check out Life at Truecaller - Behind the code: https://www.instagram.com/lifeattruecaller/
Sounds like a great opportunity?
We will fill the position as soon as we find the right candidate, so please send your application as soon as possible. As part of
the recruitment process, we will conduct a background check.
We only accept applications in English.
Sweden•Posted: Jul 3•Deadline: Aug 16
Join Truecaller – The place where innovation meets impact!
Truecaller's mission is to build trust in communication by making it safer, smarter, and more efficient. Born in Sweden, trusted
by the world, and here’s why we stand out:
* We are trusted by over 450 million active users every month across 190+ countries
* We identify over 15 billion calls daily, helping users avoid spam and scams
* We are powered by a team of 450+ employees from 45+ nationalities
We always look for people who take initiative, own their work, and keep raising the bar. An entrepreneurial mindset matters here,
especially when it turns bold ideas into real actions. We stay collaborative and focused, always searching for smarter paths
forward. If you want to make an impact and grow with a team that inspires millions, you’ll fit right in.
The role:
As a Senior ML Engineer, you will be working hands-on to optimise the training and deployment of ML models to be quick and
cost-efficient. You will also be at the forefront of putting our ML models on mobile devices to enhance data privacy and customer
experience. To achieve this, you will need to collaborate with teams across Truecaller to establish best practices and tools for
efficient ML model development and deployment, particularly on mobile platforms. You will be expected to help Truecaller reach and
remain at the cutting edge of ML training and deployment, and to explore new frontiers such as federated learning.
What you will do
* Understand the current and future needs of developers and the organisation, and create a roadmap with your manager for meeting
those needs.
* Work with teams across Truecaller, enabling them to deploy models to production quickly and cost-effectively.
* Work hands-on with teams throughout Truecaller to optimise ML models for mobile devices.
* Be the go-to expert for developing models for mobile devices as well as deploying them.
* Staying up to date with the latest trends and technologies in ML Engineering, especially ML on mobile phones, and driving
continuous innovation throughout Truecaller.
What you bring in
* Degree in computer science or equivalent
* 5+ years of experience in machine learning engineering, with a focus on deploying ML models in production environments.
* A strong understanding and experience to optimise feature engineering, model training, and model deployment.
* Hands-on experience deploying ML models on mobile devices (e.g., TensorFlow Lite, Core ML, ONNX Runtime Mobile).
* Strong understanding of machine learning frameworks (TensorFlow, PyTorch, ONNX) and their deployment on mobile platforms.
* Understanding of both Android and iOS development and how that impacts ML model deployment and usage.
* Strong communication and collaboration skills, with the ability to work effectively across different teams and disciplines.
* A customer-focused mindset.
* Excellent communication skills in spoken and written English.
What we offer:
We support growth through learning resources, leadership programs, mentoring, and real hands-on work. People can move between
teams and projects to build new skills and keep things interesting. We offer clear internal mobility and a transparent path for
progression, with leaders who stay involved and provide guidance throughout the year. In addition, you will benefit
from:
* A comprehensive compensation package: We offer a competitive salary, 30 days of paid vacation, private health insurance,
parental leave top-up, pension, and wellness contributions.
* Modern tools to do your best work: Choose your preferred computer and phone within our budget, so you can work comfortably and
efficiently.
* A people-focused office culture: We value in-person collaboration and follow an office-first model, with some flexibility. Our
offices offer a vibrant environment with opportunities to learn, connect, and recharge, from breakfast, lunch, and well-stocked
snack stations and quiet spaces to team activities such as movie nights, tech meetups, and cultural events. There's something
for everyone.
* Truecaller’s “Lab Days” offer a space for imagination: 5 times per year for 3 days, where everyone steps away from their normal
tasks to explore new, bold ideas and build things they’ve always wanted to. It’s a space where curiosity leads the way, and
prototypes take shape. Some concepts even make it into production, and a few have grown into real features used by millions
today. Lab Days allow you to be creative, learn fast, and help shape Truecaller's future.
Come as you are:
Truecaller is committed to building a diverse and inclusive team. We believe that a wide range of backgrounds, perspectives, and
experiences strengthens our products and our culture. No matter where you're from, what language you speak, or how you identify,
we value what makes you unique and would love to get to know you.
Check out Life at Truecaller - Behind the code:
https://www.instagram.com/lifeattruecaller/
Sounds like a great opportunity?
We will fill the position as soon as we find the right candidate, so please send your application as soon as possible. As part of
the recruitment process, we will conduct a background check.
We only accept applications in English.
Sweden•Posted: Apr 28•Deadline: Aug 16
Are you interested in working on exciting challenges within high transaction environments? We are looking for you who are curious,
can take initiative and come up with new creative solutions, and care about ultimately delivering a great product.
THE ROLE
Our Player, Rewards & Gamification- Product Development team in Stockholm is growing and we are now looking for a Backend Software
Engineer to join! Player, Rewards & Gamification at Betsson Group ensures our customers come back for more. It’s all about
loyalty. We provide a world class customer experience beyond the game play featuring Tournaments, Dynamic personalized campaigns
and much more!
You will be part of preparing our journey to containerization, increasing the scalability of our systems while also maintaining
their high quality. To accommodate new requirements, we are constantly re-evaluating our systems design and working on exciting
new features.
WHAT YOU’LL DO
* Design and develop distributed backend services using .NET and event-driven architecture.
* Collaborate with product and commercial teams to turn engagement ideas into scalable, maintainable, and user-friendly
solutions.
* Optimize our microservice ecosystem for performance, reliability, and observability.
* Drive our containerization and cloud migration strategy forward.
* Participate in architecture discussions and help shape technical decisions.
* For senior engineers: Lead architectural decisions and proactively identify areas for improvement.
* Write maintainable, well-tested code and conduct code reviews.
* Participate in incident resolution and the team’s on-call rotation.
* Maintain clear technical documentation such as ADRs, runbooks, and guidelines.
* Build and share your domain expertise within the team.
WHAT TECH STACK YOU’LL BE WORKING WITH
We don’t expect you to know everything listed below – but the more you’re familiar with, the better. What matters most is your
ability to learn, collaborate, and write high-quality, maintainable code.
CORE TECHNOLOGIES
These are essential to the role, and we’re looking for solid experience here – especially for senior candidates.
* Languages & Frameworks: C#, .NET (modern versions after .NET Core)
* Databases: SQL Server, PostgreSQL, Redis, Couchbase (experience with relational or document databases, including indexing and
query optimization, is a strong plus)
* Cloud & Containers: AWS, Kubernetes, Docker (experience with any major cloud provider or containerization platform is valuable)
* Testing & Quality: xUnit/NUnit, mocking frameworks, k6 for load testing (understanding of unit, integration, and performance
testing is more important than specific tools)
ADDITIONAL TOOLS & PRACTICES
Familiarity with these of similar tools and concepts is a plus.
* Messaging & Microservices: Web APIs, Apache Kafka, RabbitMQ, Orleans (experience with any messaging or actor-based system is
valuable)
* Observability: Prometheus, Grafana, Loki, Splunk (or experience with other observability stacks)
* CI/CD: GitHub Actions, trunk-based development, progressive delivery (familiarity with continuous delivery pipelines and
deployment strategies is more important than specific tooling)
* Architecture: Domain-driven design, event sourcing, actor model, distributed systems at planet-scale
* Ways of Working: Agile and Lean principles, DevOps mindset, strong collaboration
WHAT’S IN IT FOR YOU?
Much like a rollercoaster, life at Betsson Group is fast-paced, full of twists and turns, and always exciting. With more than
2,800 colleagues representing over 75 nationalities across a global network of offices - including 1,500 at our operational
headquarters in Malta - every day brings new challenges and opportunities to grow. It may not be for the faint-hearted, but if you
thrive on innovation, enjoy pushing boundaries and want to be part of a diverse, international team, then you’ll fit right in at
Betsson.
CHALLENGE ACCEPTED?
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