Block Media Ltd
Join to apply for the
Senior Fullstack Java Developer
role at
Block Labs
3 days ago Be among the first 25 applicants
About Block Labs Block Labs is a premier technology studio operating at the bleeding edge of Web3, Artificial Intelligence, and iGaming. We don't just ship features; we engineer high‑scale, production‑grade platforms that power the next generation of digital products. We are a collective of senior engineers, product strategists, and builders who refuse to compromise on architecture. Whether we are designing autonomous multi‑agent AI systems, building decentralized financial infrastructure, or architecting high‑frequency iGaming platforms, our standard is excellence. We move fast, but we build for the long term. If you are looking to work alongside a team that values deep technical expertise, thoughtful system design, and product ownership, Block Labs is where you belong.
About The Role You will join a multidisciplinary engineering team working on real‑time multiplayer and single‑player gaming platforms. This role is ideal for a developer with a strong Java background who can work confidently across backend services, frontend integrations, and supporting tools. A genuine engineer who can take ownership of features end to end. This is not a narrow backend role and not a ticket factory. We are looking for a Senior Java Engineer who can reason about systems end to end and take responsibility for features from design to production. You will primarily work in Java, but you are expected to step outside strict role boundaries when necessary: defining protocols, debugging production issues across services and clients, and making pragmatic engineering decisions.
Key Responsibilities
Design and implement backend services in Java 17+ using Spring Boot and Maven
Own critical microservices across authentication, gameplay, chat, and real‑time communication
Design and maintain REST and WebSocket APIs with a strong focus on correctness, latency, and resilience
Work closely with client engineers to define protocols, state synchronisation, and integration contracts
Build and maintain integrations with third‑party platforms and cashier systems
Contribute to data modelling, schema design, and query optimisation
Debug complex production issues that cut across services, networks, and client behaviour
Participate actively in code reviews, architectural discussions, and technical decision making
Ensure scalability, consistency, and reliability across distributed systems
About You
You are genuinely strong in Java (17+) and have built real systems with Spring Boot
You have experience owning services in production, not just writing code
You understand distributed systems, state management, and failure modes
You have worked with transactional systems such as payments, wallets, or financial flows
You are comfortable designing APIs and communication protocols
You can read and reason about frontend or client‑side code, even if it is not your main focus
You value clarity, simplicity, and correctness over clever abstractions
You take ownership and do not wait to be told what to do
Experience with real‑time systems or multiplayer platforms would be an advantage
What kind of culture can I expect? Mature, mission‑driven, and low‑ego. We value clarity over noise, outcomes over theatrics, and pace without chaos. If you’re one of the smartest minds in your craft and want to build with other experts, you’ll feel at home here.
Seniority level Mid‑Senior level
Employment type Full‑time
Job function Engineering and Information Technology
Industries Technology, Information and Internet
Referrals increase your chances of interviewing at Block Labs by 2x
#J-18808-Ljbffr
Senior Fullstack Java Developer
role at
Block Labs
3 days ago Be among the first 25 applicants
About Block Labs Block Labs is a premier technology studio operating at the bleeding edge of Web3, Artificial Intelligence, and iGaming. We don't just ship features; we engineer high‑scale, production‑grade platforms that power the next generation of digital products. We are a collective of senior engineers, product strategists, and builders who refuse to compromise on architecture. Whether we are designing autonomous multi‑agent AI systems, building decentralized financial infrastructure, or architecting high‑frequency iGaming platforms, our standard is excellence. We move fast, but we build for the long term. If you are looking to work alongside a team that values deep technical expertise, thoughtful system design, and product ownership, Block Labs is where you belong.
About The Role You will join a multidisciplinary engineering team working on real‑time multiplayer and single‑player gaming platforms. This role is ideal for a developer with a strong Java background who can work confidently across backend services, frontend integrations, and supporting tools. A genuine engineer who can take ownership of features end to end. This is not a narrow backend role and not a ticket factory. We are looking for a Senior Java Engineer who can reason about systems end to end and take responsibility for features from design to production. You will primarily work in Java, but you are expected to step outside strict role boundaries when necessary: defining protocols, debugging production issues across services and clients, and making pragmatic engineering decisions.
Key Responsibilities
Design and implement backend services in Java 17+ using Spring Boot and Maven
Own critical microservices across authentication, gameplay, chat, and real‑time communication
Design and maintain REST and WebSocket APIs with a strong focus on correctness, latency, and resilience
Work closely with client engineers to define protocols, state synchronisation, and integration contracts
Build and maintain integrations with third‑party platforms and cashier systems
Contribute to data modelling, schema design, and query optimisation
Debug complex production issues that cut across services, networks, and client behaviour
Participate actively in code reviews, architectural discussions, and technical decision making
Ensure scalability, consistency, and reliability across distributed systems
About You
You are genuinely strong in Java (17+) and have built real systems with Spring Boot
You have experience owning services in production, not just writing code
You understand distributed systems, state management, and failure modes
You have worked with transactional systems such as payments, wallets, or financial flows
You are comfortable designing APIs and communication protocols
You can read and reason about frontend or client‑side code, even if it is not your main focus
You value clarity, simplicity, and correctness over clever abstractions
You take ownership and do not wait to be told what to do
Experience with real‑time systems or multiplayer platforms would be an advantage
What kind of culture can I expect? Mature, mission‑driven, and low‑ego. We value clarity over noise, outcomes over theatrics, and pace without chaos. If you’re one of the smartest minds in your craft and want to build with other experts, you’ll feel at home here.
Seniority level Mid‑Senior level
Employment type Full‑time
Job function Engineering and Information Technology
Industries Technology, Information and Internet
Referrals increase your chances of interviewing at Block Labs by 2x
#J-18808-Ljbffr