Biography

Sandra Balej is a visual effects supervisor. Balej began her career as a finishing artist, honing her skills in assembling and refining visual elements for final shots. This early work laid the foundation for her transition to compositing supervision, where she led teams at several visual effects houses, including Method Studios. Her expertise in compositing enabled her to move into roles as an on-set and production VFX supervisor, where she became responsible for integrating complex digital effects into live-action environments. Her credits include major Hollywood blockbusters such as Mulan (2020), where she served as Compositing Supervisor, and Ant-Man and the Wasp (2018), where she acted as Digital Effects Supervisor. She also worked on Elysium (2013), The Maze Runner (2014), Doctor Strange (2016), and Thor: Ragnarok (2017), handling the assembly of intricate visual sequences. Her work in the Marvel Cinematic Universe continued with television series, including WandaVision (2021), Loki (2021–2023), and Ms. Marvel (2022), where she held various supervisory roles, including Additional VFX Supervisor. The industry has recognised Balej’s contributions through multiple nominations, including two Primetime Emmy Award nods for Outstanding Special Visual Effects in a Season or a Movie. She received these nominations for her work on WandaVision and Loki, where she served as an Additional VFX Supervisor.

Photos

Filmography

View Loki
Loki

Loki

2021Series
8.2
View The Fantastic 4: First Steps
The Fantastic 4: First Steps

The Fantastic 4: First Steps

2025Film
7.0
View Thunderbolts*
Thunderbolts*

Thunderbolts*

2025Film
7.3
View The Maze Runner
The Maze Runner

The Maze Runner

2014Film
7.2
View Thor: Ragnarok
Thor: Ragnarok

Thor: Ragnarok

2017Film
7.6
View Doctor Strange
Doctor Strange

Doctor Strange

2016Film
7.4
View Mulan
Mulan

Mulan

2020Film
6.8
View Ms. Marvel
Ms. Marvel

Ms. Marvel

2022Series
6.3
View Ant-Man and the Wasp
Ant-Man and the Wasp

Ant-Man and the Wasp

2018Film
6.9
View Night at the Museum: Secret of the Tomb
Night at the Museum: Secret of the Tomb

Night at the Museum: Secret of the Tomb

2014Film
6.2
View White House Down
White House Down

White House Down

2013Film
6.5
View Elysium
Elysium

Elysium

2013Film
6.5